Coastal Flood Warning
* WHAT...Up to one foot of inundation above ground level
expected in low lying areas due to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...From 11 PM this evening to 9 AM EDT Friday, especially
around the time of high tide.
* IMPACTS...At 3.2 feet, water begins to approach businesses on
Dock Street in Annapolis. The City Dock parking lot is
flooded. Compromise Street is flooded.
* ADDITIONAL DETAILS...Tides one and a half to two feet above
normal. The next high tide at Annapolis U.S. Naval Academy is at
4:10 AM and 4:00 PM.
From: Sep 04, 2025 22:54
Until: Sep 05, 2025 07:00
Coastal Flood Advisory
* WHAT...Up to one half foot of inundation above ground level
expected in low lying areas due to tidal flooding.
* WHERE...Shoreline in Charles and King George Counties.
* WHEN...From 11 PM this evening to 4 AM EDT Friday, especially
around the time of high tide.
* IMPACTS...At 3.5 feet, water reaches yards near Cobb Island
and docks near Dahlgren.
* ADDITIONAL DETAILS...Tides one to one and a half feet above
normal. The next high tide at Goose Bay is at 2:40 AM and 3:11
PM. The next high tide at Dahlgren is at 1:26 AM and 1:47 PM.
The next high tide at Indian Head is at 6:34 AM and 7:05 PM.
From: Sep 04, 2025 22:54
Until: Sep 05, 2025 07:00
Test Message
Monitoring message only. Please disregard.
From: Jun 28, 2025 06:24
Until: Sep 05, 2025 06:31
Coastal Flood Watch
* WHAT...For the Coastal Flood Advisory, up to one half foot of
inundation above ground level in low lying areas due to tidal
flooding. For the Coastal Flood Watch, up to one foot of
inundation above ground level possible in low lying areas due
to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...For the Coastal Flood Advisory, ongoing until 7 AM EDT
this morning. For the Coastal Flood Watch, from late tonight
through Friday morning, especially around the time of high tide.
* IMPACTS...At 3.2 feet, water begins to approach businesses on
Dock Street in Annapolis. The City Dock parking lot is
flooded. Compromise Street is flooded.
* ADDITIONAL DETAILS...Tides one and a half to two feet above
normal. The affected high tide at Annapolis U.S. Naval Academy
is at 4:10 AM.
From: Sep 04, 2025 09:19
Until: Sep 04, 2025 17:30
Coastal Flood Watch
* WHAT...For the Coastal Flood Advisory, around one foot of
inundation above ground level expected in low lying areas due to
tidal flooding. For the Coastal Flood Watch, around a foot and a
half of inundation above ground level possible in low lying
areas due to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...For the Coastal Flood Advisory, from midnight tonight
to 7 AM EDT Thursday, especially around the time of high tide.
For the Coastal Flood Watch, from late Thursday night through
Friday morning, especially around the time of high tide.
* IMPACTS...At 2.8 feet, flooding of some of the parking area
near Dock Street in Annapolis may occur, with water
surrounding the Alex Haley Memorial.
* ADDITIONAL DETAILS...Tides one to one and a half feet above
normal. The next high tide at Annapolis U.S. Naval Academy is at
3:29 AM and 3:00 PM.
From: Sep 04, 2025 00:12
Until: Sep 04, 2025 08:15
Coastal Flood Advisory
* WHAT...For the Coastal Flood Advisory, around one foot of
inundation above ground level expected in low lying areas due to
tidal flooding. For the Coastal Flood Watch, around a foot and a
half of inundation above ground level possible in low lying
areas due to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...For the Coastal Flood Advisory, from midnight tonight
to 7 AM EDT Thursday, especially around the time of high tide.
For the Coastal Flood Watch, from late Thursday night through
Friday morning, especially around the time of high tide.
* IMPACTS...At 2.8 feet, flooding of some of the parking area
near Dock Street in Annapolis may occur, with water
surrounding the Alex Haley Memorial.
* ADDITIONAL DETAILS...Tides one to one and a half feet above
normal. The next high tide at Annapolis U.S. Naval Academy is at
3:29 AM and 3:00 PM.
From: Sep 04, 2025 00:12
Until: Sep 04, 2025 08:15
Coastal Flood Watch
* WHAT...For the Coastal Flood Advisory, up to one half foot of
inundation above ground level expected in low lying areas due
to tidal flooding. For the Coastal Flood Watch, up to one half
foot of inundation above ground level possible in low lying
areas due to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...For the Coastal Flood Advisory, from midnight tonight
to 7 AM EDT Thursday, especially around the time of high tide.
For the Coastal Flood Watch, from late Thursday night through
Friday morning, especially around the time of high tide.
* IMPACTS...At 3.0 feet, Compromise Street begins to flood in
Annapolis. Flooding of much of the City Dock parking lot is
occurring.
* ADDITIONAL DETAILS...Tides one to one and a half feet above
normal. The next high tide at Annapolis U.S. Naval Academy is at
3:29 AM and 3:00 PM.
From: Sep 03, 2025 18:07
Until: Sep 04, 2025 02:15
Coastal Flood Advisory
* WHAT...For the Coastal Flood Advisory, up to one half foot of
inundation above ground level expected in low lying areas due
to tidal flooding. For the Coastal Flood Watch, up to one half
foot of inundation above ground level possible in low lying
areas due to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...For the Coastal Flood Advisory, from midnight tonight
to 7 AM EDT Thursday, especially around the time of high tide.
For the Coastal Flood Watch, from late Thursday night through
Friday morning, especially around the time of high tide.
* IMPACTS...At 3.0 feet, Compromise Street begins to flood in
Annapolis. Flooding of much of the City Dock parking lot is
occurring.
* ADDITIONAL DETAILS...Tides one to one and a half feet above
normal. The next high tide at Annapolis U.S. Naval Academy is at
3:29 AM and 3:00 PM.
From: Sep 03, 2025 18:07
Until: Sep 04, 2025 02:15
Coastal Flood Advisory
* WHAT...Around one and half feet of inundation above ground
level in low lying areas due to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...Until 11 AM EDT Monday, especially around the time of
high tide.
* IMPACTS...At 2.8 feet, flooding of some of the parking area
near Dock Street in Annapolis may occur, with water
surrounding the Alex Haley Memorial.
* ADDITIONAL DETAILS...Tides one to one and a half feet above
normal. The next high tide at Annapolis U.S. Naval Academy is at
7:02 PM and 7:19 AM.
From: Aug 24, 2025 18:03
Until: Aug 25, 2025 02:15
Coastal Flood Advisory
* WHAT...Up to two feet of inundation above ground level in low
lying areas due to tidal flooding.
* WHERE...Shoreline in Charles and King George Counties.
* WHEN...Until 7 PM EDT this evening, especially around the time
of high tide.
* IMPACTS...At 3.5 feet, water reaches yards near Cobb Island
and docks near Dahlgren.
* ADDITIONAL DETAILS...Tides one and a half to two feet above
normal. The next high tide at Indian Head is at 9:40 PM and 9:56
AM. The next high tide at Dahlgren is at 4:41 PM and 4:58 AM.
The next high tide at Goose Bay is at 5:46 PM and 6:02 AM.
From: Aug 24, 2025 18:03
Until: Aug 24, 2025 23:00
Coastal Flood Advisory
* WHAT...Up to one half foot of inundation above ground level in
low lying areas due to tidal flooding.
* WHERE...Shoreline in the City of Alexandria and Arlington
County.
* WHEN...Until 7 PM EDT Sunday, especially around the time of
high tide.
* IMPACTS...Water is expected to approach the curb near the
intersection of King Street and Strand Street in Alexandria.
* ADDITIONAL DETAILS...Tides one and a half to two feet above
normal. The next high tide at Alexandria is at 9:45 AM and 10:12
PM.
From: Aug 24, 2025 01:43
Until: Aug 24, 2025 09:45
Coastal Flood Advisory
* WHAT...One and a half to two feet of inundation above ground
level in low lying areas due to tidal flooding.
* WHERE...Shoreline in the City of Alexandria and Arlington
County.
* WHEN...Until 7 PM EDT Sunday, especially around the time of
high tide.
* IMPACTS...Water is expected to approach the curb near the
intersection of King Street and Strand Street in Alexandria..
* ADDITIONAL DETAILS...Tides one to one and a half feet above
normal. The next high tide at Alexandria is at 9:30 PM and 9:45
AM.
From: Aug 23, 2025 18:10
Until: Aug 24, 2025 02:15
Coastal Flood Advisory
* WHAT...Up to one half foot of inundation above ground level in
low lying areas due to tidal flooding.
* WHERE...Shoreline in the City of Alexandria and Arlington
County.
* WHEN...Until 7 PM EDT Sunday, especially around the time of
high tide.
* IMPACTS...Water is expected to approach the curb near the
intersection of King Street and Strand Street in Alexandria.
* ADDITIONAL DETAILS...Tides one and a half to two feet above
normal. The next high tide at Alexandria is at 9:00 AM and 9:30
PM.
From: Aug 23, 2025 07:02
Until: Aug 23, 2025 15:15
Coastal Flood Advisory
* WHAT...Up to one half foot of inundation above ground level in
low lying areas due to tidal flooding.
* WHERE...Shoreline in the District of Columbia.
* WHEN...Until 11 AM EDT this morning, especially around the
time of high tide.
* IMPACTS...The unprotected area on the Southwest Waterfront at
the DC Seafood Market is expected to flood. Water is expected to
approach parts of the Hains Point Loop Road, but it will likely
be closed. Low lying areas near Fletchers Boathouse begin to
flood. Portions of Roosevelt Island are flooded.
* ADDITIONAL DETAILS...Tides one and a half to two feet above
normal. The next high tide at Washington Channel is at 8:42 AM
and 9:12 PM.
From: Aug 23, 2025 07:02
Until: Aug 23, 2025 15:00
Coastal Flood Advisory
* WHAT...Up to one half foot of inundation above ground level in
low lying areas due to tidal flooding.
* WHERE...Shoreline in the City of Alexandria and Arlington
County.
* WHEN...Until 7 PM EDT Sunday, especially around the time of
high tide.
* IMPACTS...Water is expected to approach the curb near the
intersection of King Street and Strand Street in Alexandria.
* ADDITIONAL DETAILS...Tides one and a half to two feet above
normal. The next high tides at Alexandria are 9:00 AM and 9:30
PM.
From: Aug 23, 2025 03:02
Until: Aug 23, 2025 11:15
Coastal Flood Advisory
* WHAT...Up to one half foot of inundation above ground level
expected in low lying areas due to tidal flooding.
* WHERE...Shoreline in the City of Alexandria and Arlington
County.
* WHEN...From 6 AM this morning to 11 AM EDT Sunday, especially
around the time of high tide.
* IMPACTS...A Coastal Flood Advisory indicates that onshore winds
and tides will combine to generate flooding of low areas along
the shore.
* ADDITIONAL DETAILS...Tides one and a half to two feet above
normal. The next high tide at Alexandria is at 8:12 AM and 8:46
PM.
From: Aug 22, 2025 05:33
Until: Aug 22, 2025 13:45
Coastal Flood Watch
* WHAT...For the Coastal Flood Advisory, up to one foot of
inundation above ground level expected in low lying areas due
to tidal flooding. For the Coastal Flood Watch, one to two
feet of inundation above ground level possible in low lying
areas due to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...For the Coastal Flood Advisory, until 2 AM EDT
Saturday, especially around the time of high tide. For the
Coastal Flood Watch, from late tonight through Saturday
morning, especially around the time of high tide.
* IMPACTS...At 3.5 feet, water reaches the floor of the Maritime
Museum in Annapolis, begins to cover Bowyer Road on the Naval
Academy campus, and numerous businesses on Dock Street are
flooded, along with the City Dock parking lot. Bayside Beach
begins to flood around Harbor Rd and Lake Dr.
* ADDITIONAL DETAILS...Tides one and a half to two feet above
normal. The next high tide at Annapolis U.S. Naval Academy is at
5:31 AM and 5:23 PM *.
From: Aug 22, 2025 05:33
Until: Aug 22, 2025 13:45
Coastal Flood Watch
* WHAT...For the Coastal Flood Advisory, up to two feet of
inundation above ground level expected in low lying areas due to
tidal flooding. For the Coastal Flood Watch, two to two and half feet
of inundation above ground level possible in low lying areas
due to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...For the Coastal Flood Advisory, from 2 AM to 4 AM EDT
Friday, especially around the time of high tide. For the
Coastal Flood Watch, from late tonight through Saturday
morning, especially around the time of high tide.
* IMPACTS...At 3.5 feet, water reaches the floor of the Maritime
Museum in Annapolis, begins to cover Bowyer Road on the Naval
Academy campus, and numerous businesses on Dock Street are
flooded, along with the City Dock parking lot. Bayside Beach
begins to flood around Harbor Rd and Lake Dr.
* ADDITIONAL DETAILS...Tides one and a half to two feet above
normal. The next high tide at Annapolis U.S. Naval Academy is at
4:26 PM and 5:31 AM.
From: Aug 21, 2025 13:48
Until: Aug 21, 2025 22:00
Coastal Flood Advisory
* WHAT...For the Coastal Flood Advisory, up to two feet of
inundation above ground level expected in low lying areas due to
tidal flooding. For the Coastal Flood Watch, two to two and half feet
of inundation above ground level possible in low lying areas
due to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...For the Coastal Flood Advisory, from 2 AM to 4 AM EDT
Friday, especially around the time of high tide. For the
Coastal Flood Watch, from late tonight through Saturday
morning, especially around the time of high tide.
* IMPACTS...At 3.5 feet, water reaches the floor of the Maritime
Museum in Annapolis, begins to cover Bowyer Road on the Naval
Academy campus, and numerous businesses on Dock Street are
flooded, along with the City Dock parking lot. Bayside Beach
begins to flood around Harbor Rd and Lake Dr.
* ADDITIONAL DETAILS...Tides one and a half to two feet above
normal. The next high tide at Annapolis U.S. Naval Academy is at
4:26 PM and 5:31 AM.
From: Aug 21, 2025 13:48
Until: Aug 21, 2025 22:00
Coastal Flood Advisory
* WHAT...Up to one half foot of inundation above ground level in
low lying areas due to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...Until 8 AM EDT this morning, especially around the time
of high tide.
* IMPACTS...At 3.0 feet, Compromise Street begins to flood in
Annapolis. Flooding of much of the City Dock parking lot is
occurring.
* ADDITIONAL DETAILS...Tides one to one and a half feet above
normal. The next high tide at Annapolis U.S. Naval Academy is at
3:55 AM.
From: Aug 20, 2025 06:19
Until: Aug 20, 2025 12:00
Coastal Flood Advisory
* WHAT...Up to one half foot of inundation above ground level
expected in low lying areas due to tidal flooding.
* WHERE...Shoreline in Charles and King George Counties.
* WHEN...From 11 PM this evening to 4 AM EDT Wednesday,
especially around the time of high tide.
* IMPACTS...At 3.5 feet, water reaches yards near Cobb Island
and docks near Dahlgren.
* ADDITIONAL DETAILS...Tides one and a half to two feet above
normal. The next high tide at Indian Head is at 5:33 PM and 5:50
AM. The next high tide at Dahlgren is at 1:03 AM and 1:27 PM.
The next high tide at Goose Bay is at 1:56 AM and 2:38 PM.
From: Aug 19, 2025 17:51
Until: Aug 20, 2025 03:00
Coastal Flood Warning
* WHAT...One to two feet of inundation above ground level
expected in low lying areas due to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...From 11 PM this evening to 8 AM EDT Wednesday,
especially around the time of high tide.
* IMPACTS...At 3.5 feet, water reaches the floor of the Maritime
Museum in Annapolis, begins to cover Bowyer Road on the Naval
Academy campus, and numerous businesses on Dock Street are
flooded, along with the City Dock parking lot. Bayside Beach
begins to flood around Harbor Rd and Lake Dr.
* ADDITIONAL DETAILS...Tides one and a half to two feet above
normal. The next high tide at Annapolis U.S. Naval Academy is at
2:13 PM and 3:55 AM.
From: Aug 19, 2025 17:51
Until: Aug 20, 2025 03:00
Coastal Flood Advisory
* WHAT...Up to one half foot of inundation above ground level in
low lying areas due to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...Until 5 AM EDT early this morning, especially around
the time of high tide.
* IMPACTS...At 2.8 feet, flooding of some of the parking area
near Dock Street in Annapolis may occur, with water
surrounding the Alex Haley Memorial.
* ADDITIONAL DETAILS...Tides one to one and a half feet above
normal. The next high tide at Annapolis U.S. Naval Academy is at
1:53 AM.
From: Aug 18, 2025 04:02
Until: Aug 18, 2025 09:00
Coastal Flood Advisory
* WHAT...Up to one half foot of inundation above ground level
expected in low lying areas due to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...From midnight tonight to 5 AM EDT Monday, especially
around the time of high tide.
* IMPACTS...At 2.8 feet, flooding of some of the parking area
near Dock Street in Annapolis may occur, with water
surrounding the Alex Haley Memorial.
* ADDITIONAL DETAILS...Tides one to one and a half feet above
normal. The next high tide at Annapolis U.S. Naval Academy is at
1:53 AM.
From: Aug 17, 2025 18:10
Until: Aug 18, 2025 04:00
Coastal Flood Advisory
* WHAT...Up to one half foot of inundation above ground level in
low lying areas due to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...Until 4 AM EDT early this morning, especially around
the time of high tide.
* IMPACTS...At 2.6 feet, water may begin to pond in the parking
lot at Annapolis City Dock, and surround the Alex Haley
Memorial.
* ADDITIONAL DETAILS...Tides between one half foot and one foot
above normal. The next high tide at Annapolis U.S. Naval Academy
is at 12:46 AM.
From: Aug 17, 2025 04:30
Until: Aug 17, 2025 08:00
Coastal Flood Advisory
* WHAT...Up to one half foot of inundation above ground level
expected in low lying areas due to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...From 10 PM this evening to 4 AM EDT Sunday, especially
around the time of high tide.
* IMPACTS...At 2.6 feet, water may begin to pond in the parking
lot at Annapolis City Dock, and surround the Alex Haley
Memorial.
* ADDITIONAL DETAILS...Tides between one half foot and one foot
above normal. The next high tide at Annapolis U.S. Naval Academy
is at 12:46 AM and 11:46 AM.
From: Aug 16, 2025 20:34
Until: Aug 17, 2025 04:45
Coastal Flood Advisory
* WHAT...Up to one half foot of inundation above ground level
expected in low lying areas due to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...From 10 PM this evening to 4 AM EDT Sunday, especially
around the time of high tide.
* IMPACTS...At 2.6 feet, water may begin to pond in the parking
lot at Annapolis City Dock, and surround the Alex Haley
Memorial.
* ADDITIONAL DETAILS...Tides between one half foot and one foot
above normal. The next high tide at Annapolis U.S. Naval Academy
is at 12:46 AM.
From: Aug 16, 2025 18:26
Until: Aug 17, 2025 02:30
Coastal Flood Advisory
* WHAT...Up to one half foot of inundation above ground level
expected in low lying areas due to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...From 2 AM to 8 AM EDT Friday, especially around the
time of high tide.
* IMPACTS...At 2.8 feet, flooding of some of the parking area
near Dock Street in Annapolis may occur, with water
surrounding the Alex Haley Memorial.
* ADDITIONAL DETAILS...Tides one to one and a half feet above
normal. The next high tide at Annapolis U.S. Naval Academy is at
5:26 AM.
From: Aug 08, 2025 01:19
Until: Aug 08, 2025 09:30
Coastal Flood Advisory
* WHAT...Up to one half foot of inundation above ground level
expected in low lying areas due to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...From 2 AM to 8 AM EDT Friday, especially around the
time of high tide.
* IMPACTS...At 2.8 feet, flooding of some of the parking area
near Dock Street in Annapolis may occur, with water
surrounding the Alex Haley Memorial.
* ADDITIONAL DETAILS...Tides one to one and a half feet above
normal. The next high tide at Annapolis U.S. Naval Academy is at
4:20 PM and 5:26 AM.
From: Aug 07, 2025 17:16
Until: Aug 08, 2025 01:30
Coastal Flood Advisory
* WHAT...Up to one half foot of inundation above ground level in
low lying areas due to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...Until 6 AM EDT Monday, especially around the time of
high tide.
* IMPACTS...At 2.6 feet, water may begin to pond in the parking
lot at Annapolis City Dock, and surround the Alex Haley
Memorial.
* ADDITIONAL DETAILS...Tides one to one and a half feet above
normal. The next high tide at Annapolis U.S. Naval Academy is at
2:35 AM.
From: Aug 04, 2025 03:20
Until: Aug 04, 2025 10:00
Coastal Flood Advisory
* WHAT...Up to one half foot of inundation above ground level
expected in low lying areas due to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...From 10 PM this evening to 6 AM EDT Monday, especially
around the time of high tide.
* IMPACTS...At 2.8 feet, flooding of some of the parking area
near Dock Street in Annapolis may occur, with water
surrounding the Alex Haley Memorial.
* ADDITIONAL DETAILS...Tides one to one and a half feet above
normal. The next high tide at Annapolis U.S. Naval Academy is at
12:19 PM and 2:35 AM.
From: Aug 03, 2025 15:20
Until: Aug 04, 2025 03:00
Coastal Flood Advisory
* WHAT...Up to one half foot of inundation above ground level in
low lying areas due to tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...Until 8 AM EDT Sunday, especially around the time of
high tide.
* IMPACTS...At 2.8 feet, flooding of some of the parking area
near Dock Street in Annapolis may occur, with water
surrounding the Alex Haley Memorial.
* ADDITIONAL DETAILS...Tides one to one and a half feet above
normal. The next high tide at Annapolis U.S. Naval Academy is at
1:41 AM.
From: Aug 03, 2025 00:04
Until: Aug 03, 2025 08:15
Coastal Flood Advisory
* WHAT...For the Coastal Flood Advisory, up to one foot of
inundation above ground level expected in low lying areas due to
tidal flooding.
* WHERE...Shoreline in Anne Arundel County.
* WHEN...From 6 PM this evening to 8 AM EDT Sunday, especially
around the time of high tide.
* IMPACTS...At 3.0 feet, Compromise Street begins to flood in
Annapolis. Flooding of much of the City Dock parking lot is
occurring.
* ADDITIONAL DETAILS...Tides one to one and a half feet above
normal. The next high tide at Annapolis U.S. Naval Academy is at
|1:41 AM and 12:19 PM.
From: Aug 02, 2025 17:46
Until: Aug 03, 2025 02:00
Flood Watch
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...The District of Columbia, portions of Maryland, including
the following areas, Anne Arundel, Calvert, Carroll, Cecil,
Central and Southeast Howard, Central and Southeast Montgomery,
Charles, Frederick MD, Northern Baltimore, Northwest Harford,
Northwest Howard, Northwest Montgomery, Prince Georges, Southeast
Harford, Southern Baltimore and St. Marys, and northern Virginia,
including the following areas, Arlington/Falls Church/Alexandria,
Central and Southeast Prince William/Manassas/Manassas Park,
Eastern Loudoun, Fairfax, Northern Fauquier, Northwest Prince
William, Southern Fauquier and Western Loudoun.
* WHEN...From 2 PM EDT this afternoon through late tonight.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas. Extensive
street flooding and flooding of creeks and rivers are possible.
* ADDITIONAL DETAILS...
- Significant flash flooding is possible. Numerous showers and
thunderstorms will develop and move across the area this
afternoon into this evening. Thunderstorms will be capable of
producing very heavy rain, with rainfall rates of 1 to 2
inches in 30 minutes. Widespread rainfall amounts of 1 to 2
inches are expected. Some areas could experience multiple
rounds of thunderstorms, with higher rainfall amounts of 4 to
6 inches possible. This could result in numerous instances of
flash flooding. Showers and thunderstorms will begin early
this afternoon, and the heaviest rainfall is most likely from
3 PM to 8 PM.
- Please visit www.weather.gov/safety/flood for flood safety
and preparedness information.
From: Jul 31, 2025 11:34
Until: Aug 01, 2025 06:00
Flood Watch
* WHAT...Flash flooding caused by excessive rainfall is possible.
* WHERE...Portions of DC, including the following , District of
Columbia, Maryland, including the following areas, Anne Arundel,
Calvert, Carroll, Cecil, Central and Southeast Howard, Central and
Southeast Montgomery, Charles, Frederick MD, Northern Baltimore,
Northwest Harford, Northwest Howard, Northwest Montgomery, Prince
Georges, Southeast Harford, Southern Baltimore and St. Marys, and
northern Virginia, including the following areas, Arlington/Falls
Church/Alexandria, Central and Southeast Prince
William/Manassas/Manassas Park, Eastern Loudoun, Fairfax, Northern
Fauquier, Northwest Prince William, Southern Fauquier and Western
Loudoun.
* WHEN...From Thursday afternoon through late Thursday night.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas. Extensive
street flooding and flooding of creeks and rivers are possible.
* ADDITIONAL DETAILS...
- Significant flash flooding is possible. Numerous showers and
thunderstorms will develop and move across the area Thursday
afternoon into Thursday evening. Thunderstorms will be
capable of producing very heavy rain, with rainfall rates of
1 to 2 inches in 30 minutes. Widespread rainfall amounts of 1
to 2 inches are expected. Some areas could experience
multiple rounds of thunderstorms, with higher rainfall
amounts of 4 to 6 inches possible. This could result in
numerous instances of flash flooding. Showers and
thunderstorms will begin early Thursday afternoon, and the
heaviest rainfall is most likely from 3 PM to 8 PM.
- Please visit www.weather.gov/safety/flood for flood safety
and preparedness information
From: Jul 31, 2025 18:00
Until: Aug 01, 2025 06:00
Flood Watch
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...The District of Columbia, portions of Maryland, including
the following areas, Anne Arundel, Calvert, Carroll, Cecil,
Central and Southeast Howard, Central and Southeast Montgomery,
Charles, Frederick MD, Northern Baltimore, Northwest Harford,
Northwest Howard, Northwest Montgomery, Prince Georges, Southeast
Harford, Southern Baltimore and St. Marys, and northern Virginia,
including the following areas, Arlington/Falls Church/Alexandria,
Central and Southeast Prince William/Manassas/Manassas Park,
Eastern Loudoun, Fairfax, Northern Fauquier, Northwest Prince
William, Southern Fauquier and Western Loudoun.
* WHEN...Through late tonight.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas. Extensive
street flooding and flooding of creeks and rivers are possible.
* ADDITIONAL DETAILS...
- Significant flash flooding is possible. Numerous showers and
thunderstorms will develop and move across the area this
afternoon into this evening. Thunderstorms will be capable of
producing very heavy rain, with rainfall rates of 1 to 2
inches in 30 minutes. Widespread rainfall amounts of 1 to 2
inches are expected. Some areas could experience multiple
rounds of thunderstorms, with higher rainfall amounts of 4 to
6 inches possible. This could result in numerous instances of
flash flooding. Showers and thunderstorms will begin early
this afternoon, and the heaviest rainfall is most likely from
3 PM to 8 PM.
- Please visit www.weather.gov/safety/flood for flood safety
and preparedness information.
From: Jul 31, 2025 16:25
Until: Aug 01, 2025 06:00
Severe Thunderstorm Watch
SEVERE THUNDERSTORM WATCH 562 REMAINS VALID UNTIL 8 PM EDT THIS
EVENING FOR THE FOLLOWING AREAS
THE DISTRICT OF COLUMBIA
IN MARYLAND THIS WATCH INCLUDES 14 COUNTIES
IN CENTRAL MARYLAND
ANNE ARUNDEL HOWARD
MONTGOMERY
PRINCE GEORGES
IN NORTH CENTRAL MARYLAND
CARROLL FREDERICK
WASHINGTON
IN NORTHEAST MARYLAND
CECIL
IN NORTHERN MARYLAND
BALTIMORE
BALTIMORE CITY
HARFORD
IN SOUTHERN MARYLAND
CALVERT CHARLES
ST. MARYS
IN VIRGINIA THIS WATCH INCLUDES 21 COUNTIES
IN CENTRAL VIRGINIA
CITY OF FREDERICKSBURG
GREENE KING GEORGE
ORANGE SPOTSYLVANIA
IN NORTHERN VIRGINIA
ARLINGTON
CITY OF ALEXANDRIA
CITY OF FAIRFAX
CITY OF FALLS CHURCH
CITY OF MANASSAS
CITY OF MANASSAS PARK
CULPEPER FAIRFAX
FAUQUIER LOUDOUN
PRINCE WILLIAM
STAFFORD
IN NORTHWEST VIRGINIA
CLARKE MADISON
RAPPAHANNOCK WARREN
IN WEST VIRGINIA THIS WATCH INCLUDES 1 COUNTY
IN PANHANDLE WEST VIRGINIA
JEFFERSON
THIS INCLUDES THE CITIES OF ABERDEEN, ALEXANDRIA, ANNAPOLIS,
ARLINGTON, ARNOLD, ASPEN HILL, BALLENGER CREEK, BALTIMORE,
BEL AIR, BERRYVILLE, BETHESDA, BOWIE, CALIFORNIA, CAMP SPRINGS,
CATONSVILLE, CHANTILLY, CHARLES TOWN, CHESAPEAKE BEACH, CLINTON,
COLLEGE PARK, COLUMBIA, CULPEPER, DAHLGREN, DUNDALK, DUNKIRK,
EDGEWOOD, ELDERSBURG, ELKTON, ELLICOTT CITY, ESSEX, FAIRFAX,
FALLS CHURCH, FALLSTON, FALMOUTH, FREDERICK, FREDERICKSBURG,
FRONT ROYAL, GAITHERSBURG, GERMANTOWN, GLEN BURNIE, GORDONSVILLE,
GREENBELT, HAGERSTOWN, HAVRE DE GRACE, HERNDON, HUNTINGTOWN,
JOPPATOWNE, LAUREL, LEESBURG, LEXINGTON PARK, LUSBY, MADISON,
MANASSAS, MANASSAS PARK, MCLEAN, NORTH BEACH, ODENTON, ORANGE,
PARKVILLE, PIKESVILLE, POTOMAC, PRINCE FREDERICK, RANDALLSTOWN,
RESTON, ROCKVILLE, SEVERN, SEVERNA PARK, SHEPHERDSTOWN,
SILVER SPRING, SOUTH GATE, SPOTSYLVANIA COURTHOUSE, ST. CHARLES,
STANARDSVILLE, STERLING, SUITLAND-SILVER HILL, TOWSON, WALDORF,
WARRENTON, WASHINGTON, WASHINGTON, WESTMINSTER, AND WOODBRIDGE.
From: Jul 31, 2025 17:59
Until: Aug 01, 2025 00:00
Flood Watch
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...The District of Columbia, portions of Maryland, including
the following areas, Anne Arundel, Calvert, Carroll, Cecil,
Central and Southeast Howard, Central and Southeast Montgomery,
Charles, Frederick MD, Northern Baltimore, Northwest Harford,
Northwest Howard, Northwest Montgomery, Prince Georges, Southeast
Harford, Southern Baltimore and St. Marys, and northern Virginia,
including the following areas, Arlington/Falls Church/Alexandria,
Central and Southeast Prince William/Manassas/Manassas Park,
Eastern Loudoun, Fairfax, Northern Fauquier, Northwest Prince
William, Southern Fauquier and Western Loudoun.
* WHEN...From Thursday afternoon through late Thursday night.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas. Extensive
street flooding and flooding of creeks and rivers are possible.
* ADDITIONAL DETAILS...
- Significant flash flooding is possible. Numerous showers and
thunderstorms will develop and move across the area Thursday
afternoon into Thursday evening. Thunderstorms will be
capable of producing very heavy rain, with rainfall rates of
1 to 2 inches in 30 minutes. Widespread rainfall amounts of 1
to 2 inches are expected. Some areas could experience
multiple rounds of thunderstorms, with higher rainfall
amounts of 4 to 6 inches possible. This could result in
numerous instances of flash flooding. Showers and
thunderstorms will begin early Thursday afternoon, and the
heaviest rainfall is most likely from 3 PM to 8 PM.
- Please visit www.weather.gov/safety/flood for flood safety
and preparedness information
From: Jul 31, 2025 02:52
Until: Jul 31, 2025 12:00
Air Quality Alert
The Virginia Department of Environmental Quality has issued a
Code ORANGE Air Quality Alert Wednesday for
Northern Virginia.
A Code Orange Air Quality Alert means that air pollution
concentrations within the region may become unhealthy for
sensitive groups. Sensitive groups include children, people
suffering from asthma, heart disease or other lung diseases and
the elderly. The effects of air pollution can be minimized by
avoiding strenuous activity or exercise outdoors.
For more information on ground-level ozone and fine particles
visit the web site Virginia DEQ air quality web site at
www.deq.virginia.gov.
From: Jul 29, 2025 20:40
Until: Jul 31, 2025 04:00
Heat Advisory
* WHAT...Heat index values up to 105 to 109 expected.
* WHERE...Portions of DC, central, north central, northeast,
northern, and southern Maryland, and central and northern Virginia.
* WHEN...From 11 AM this morning to 8 PM EDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
From: Jul 30, 2025 06:30
Until: Jul 31, 2025 00:00
Heat Advisory
* WHAT...Heat index values around 105 expected
* WHERE...Portions of DC, central and southern Maryland, and
central, northern, and northwest Virginia.
* WHEN...Until 8 PM EDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
From: Jul 27, 2025 18:20
Until: Jul 28, 2025 00:00
Flash Flood Warning
FFWLWX
The National Weather Service in Sterling Virginia has issued a
* Flash Flood Warning for...
Northern Fairfax County in northern Virginia...
* Until 430 PM EDT.
* At 118 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen. Additional rainfall amounts of 0.5 to 1 inch are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Great Falls...
From: Jul 27, 2025 17:18
Until: Jul 27, 2025 20:30
