Wind Advisory
* WHAT...West winds 25 to 35 mph with gusts up to 45 mph.
* WHERE...Portions of north central and northeast Illinois and
northwest Indiana.
* WHEN...Until 4 PM CST /5 PM EST/ this afternoon.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
From: Feb 20, 2026 18:00
Until: Feb 20, 2026 22:00
Special Weather Statement
ELEVATED FIRE WEATHER CONDITIONS EXPECTED FOR MUCH OF SOUTHERN WI...
Clearing skies during the day Wednesday will lead to strong mixing
and thus relative humidities are expected to plummet to 15-25%
with very breezy winds (gusts to 40mph). This will lead to an
increased concern for fire weather.
From: Feb 18, 2026 06:36
Until: Feb 19, 2026 00:00
Special Weather Statement
The combination of unseasonably warm temperatures, low relative
humidity and gusty westerly winds will lead to a heightened
threat of brush fire ignition and spread this afternoon.
Any fires that ignite may become difficult to control. Outdoor
burning is strongly discouraged.
From: Feb 18, 2026 07:08
Until: Feb 18, 2026 16:00
Red Flag Warning
The National Weather Service in Chicago has issued a Red Flag
Warning, which is in effect from 10 AM this morning to 8 PM CST
this evening. This replaces the Fire Weather Watch that was
previously in effect.
* Affected Area...Winnebago, Boone, McHenry, Ogle, Lee, De Kalb,
Kane, La Salle, Kendall and Grundy.
* Timing...From 10 AM this morning to 8 PM CST this evening.
* Winds...West 20 to 30 mph with gusts up to 40 to 45 mph.
* Relative Humidity...As low as 15 to 20 percent.
* Impacts...Any fire that develops will catch and spread
quickly. Outdoor burning is not recommended.
From: Feb 18, 2026 07:00
Until: Feb 18, 2026 15:00
Fire Weather Watch
...A FIRE WEATHER WATCH IS IN EFFECT FOR WEDNESDAY...
The combination of unseasonably warm temperatures (highs in the
60s), dry conditions (RH values around 15-25%), and gusty west-
southwest winds (gusting around 35-40 mph) will lead to an
elevated fire danger on Wednesday. While fuel moistures may be
more questionable in some areas, local fire agencies indicate
that finer fuels are primed and could lead to rapid fire spread
in these conditions. For this reason, a Fire Weather Watch has
been issued for portions of northern Illinois on Wednesday.
Confidence in Red Flag Warning criteria being met is currently
highest along and north of Interstate 88.
* Affected Area...Winnebago, Boone, McHenry, Lake IL, Ogle, Lee,
De Kalb, Kane, DuPage, Cook, La Salle, Kendall, Grundy and
Will.
* Timing...From 9 AM CST Wednesday through Wednesday evening.
* Winds...Southwest 15 to 25 mph with gusts up to 40 to 45 mph.
* Relative Humidity...As low as 15 percent.
* Impacts...Any fire that develops will catch and spread
quickly. Outdoor burning is not recommended.
From: Feb 18, 2026 03:32
Until: Feb 18, 2026 11:45
Winter Weather Advisory
* WHAT...Snow expected, possibly falling heavily at times. A quick 1
to 3 inches of accumulation is expected within just a 2 or 3 hour
period. Locally higher amounts possible with lake-enhanced snow
over Lake and northern Cook Counties.
* WHERE...DuPage, Lake IL, and Northern Cook Counties.
* WHEN...Until 6 PM CST this evening.
* IMPACTS...Roads, bridges and overpasses will likely become slick
and hazardous. Plan on slippery road conditions. The hazardous
conditions could impact the evening commute.
* ADDITIONAL DETAILS...A burst of accumulating snow is expected into
this afternoon. The snow during this period may briefly fall at a
rate of up to an inch per hour and make for slick travel
conditions.
From: Jan 30, 2026 15:19
Until: Jan 31, 2026 00:00
Special Weather Statement
A lake-effect snow band has moved onshore over Milwaukee County
and will move south-southwest into eastern Waukesha, Racine, and
Kenosha Counties. Expect a burst of heavy snow, quick
accumulations on roadways, and rapid reductions in visibility when
traveling into this snow band. Reduce speed and leave extra time
for travel.
From: Jan 30, 2026 17:24
Until: Jan 30, 2026 20:30
Winter Weather Advisory
* WHAT...Snow expected, possibly falling heavily at times. A quick 1
to 3 inches of accumulation is expected within just a 2 or 3 hour
period. Locally higher amounts possible with lake-enhanced snow
over Lake County.
* WHERE...DuPage, Lake IL, and Northern Cook Counties.
* WHEN...From 9 AM this morning to 6 PM CST this evening.
* IMPACTS...Roads, bridges and overpasses will likely become slick
and hazardous. Plan on slippery road conditions. The hazardous
conditions could impact the evening commute.
From: Jan 30, 2026 09:02
Until: Jan 30, 2026 20:00
Winter Weather Advisory
* WHAT...Snow expected, possibly falling heavily at times. A quick 1
to 3 inches of accumulation is expected within just a 2 or 3 hour
period.
* WHERE...DuPage, Lake IL, and Northern Cook Counties.
* WHEN...From 9 AM to 3 PM CST Friday.
* IMPACTS...Roads will likely become snow covered and travel
hazardous.
* ADDITIONAL DETAILS...A burst of accumulating snow is expected mid
to late Friday morning through early afternoon. The snow during
this period may briefly fall at a rate of up to an inch per hour
and make for slick travel conditions.
From: Jan 30, 2026 02:59
Until: Jan 30, 2026 13:00
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 25 to 30 below this morning.
* WHERE...Portions of central, north central, and northeast Illinois.
* WHEN...Until noon CST today.
* IMPACTS...The dangerously cold wind chills as low as 25 to 30
below zero could cause frostbite on exposed skin in as little as
30 minutes.
From: Jan 24, 2026 07:58
Until: Jan 24, 2026 18:00
Winter Weather Advisory
* WHAT...Snow expected. Total snow accumulations between 2 and 6
inches, highest within a few miles of the lakeshore. Lower snow
totals are forecasted across western portions of Lake and northern
Cook counties.
* WHERE...Central Cook, Lake IL, and Northern Cook Counties.
* WHEN...From 6 PM this evening to 6 PM CST Sunday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
From: Jan 24, 2026 07:51
Until: Jan 24, 2026 18:00
Hydrologic Outlook
ESFLOT
Cold temperatures this week have caused a significant increase in
river ice across the area, including multiple ice jams. Cold
temperatures are expected to continue into next week, with favorable
conditions for river ice formation. Areas of open river may see new
ice growth, while areas with existing ice cover my thicken.
No widespread flooding is expected, but ice jams will be possible in
isolated areas, especially along the Rock, Fox, and Kankakee rivers.
Ice jams may cause rises or fluctuations on area rivers with little
warning.
Persons with interests along area rivers should closely monitor the
latest forecasts.
From: Jan 23, 2026 20:20
Until: Jan 24, 2026 18:00
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 30 below.
* WHERE...Portions of south central and southeast Wisconsin.
* WHEN...Until noon CST today.
* IMPACTS...The dangerously cold wind chills as low as 30 below zero
could cause frostbite on exposed skin in as little as 30 minutes.
From: Jan 24, 2026 11:47
Until: Jan 24, 2026 18:00
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 25 to 30 below.
* WHERE...Portions of central, north central, and northeast Illinois.
* WHEN...Until 9 AM CST Saturday.
* IMPACTS...The dangerously cold wind chills as low as 25 to 30
below zero could cause frostbite on exposed skin in as little as
30 minutes.
From: Jan 24, 2026 03:12
Until: Jan 24, 2026 13:15
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 20 below to 25 below zero.
* WHERE...Portions of central, east central, north central, and
northeast Illinois.
* WHEN...Until noon CST today.
* IMPACTS...The dangerously cold wind chills as low as 25 below zero
could cause frostbite on exposed skin in as little as 30 minutes.
From: Jan 19, 2026 09:03
Until: Jan 19, 2026 18:00
Special Weather Statement
Water freezing on roads, along with patchy fog that may freeze on
surfaces, may cause some slick spots and black ice tonight into
Thursday morning. Untreated and secondary roads would be the most
vulnerable areas, along with bridges and overpasses. Slow down and
drive carefully into Thursday morning, and allow for extra
stopping distance between vehicles.
From: Jan 08, 2026 05:05
Until: Jan 08, 2026 15:00
Wind Advisory
* WHAT...West winds 25 to 35 mph with gusts of 45 to 55 mph early
this morning, easing to occasional gusts to around 45 mph by mid
morning.
* WHERE...Northern and central Illinois and extreme northwest Indiana
* WHEN...Until noon CST today.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
From: Dec 29, 2025 08:35
Until: Dec 29, 2025 18:00
Winter Weather Advisory
* WHAT...Snow. Additional snow accumulations up to one inch. Winds
gusting as high as 50 mph. Blowing and drifting snow expected with
lowered visibilities possible even after snow has stopped falling.
* WHERE...Rock, Kenosha, Milwaukee, Racine, and Walworth Counties.
* WHEN...Until 6 PM CST this evening.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Monday morning and evening commutes.
Gusty winds could bring down tree branches.
From: Dec 29, 2025 09:42
Until: Dec 29, 2025 17:45
Winter Weather Advisory
* WHAT...Snow. Additional snow accumulations of one to two inches.
Winds gusting as high as 50 mph. Blowing and drifting snow
expected with lowered visibilities possible even after snow has
stopped falling.
* WHERE...Dodge, Jefferson, Ozaukee, Washington, and Waukesha
Counties.
* WHEN...Until 6 PM CST this evening.
* IMPACTS...Plan on slippery road conditions. Areas of snow may
reduce visibility. The hazardous conditions could impact the
Monday morning and evening commutes. Gusty winds could bring down
tree branches.
From: Dec 29, 2025 09:42
Until: Dec 29, 2025 17:45
Wind Advisory
* WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph. A few
gusts to 55 mph possible near Lake Michigan.
* WHERE...Portions of east central and southeast Wisconsin.
* WHEN...Until 6 PM CST this evening.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
From: Dec 29, 2025 09:30
Until: Dec 29, 2025 17:30
Wind Advisory
* WHAT...Northwest winds 25 to 30 mph with gusts up to 45 mph.
* WHERE...Columbia, Dane, Green, Green Lake, Iowa, Lafayette,
Marquette, Rock, and Sauk Counties.
* WHEN...Until noon CST today.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
From: Dec 29, 2025 09:30
Until: Dec 29, 2025 17:30
Wind Advisory
* WHAT...West winds 25 to 35 mph with gusts of 45 to 55 mph expected.
* WHERE...Portions of central, east central, north central, and
northeast Illinois and northwest Indiana.
* WHEN...Until 3 PM CST /4 PM EST/ Monday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* ADDITIONAL DETAILS...Periods of wind-whipped snow showers tonight
through Monday morning may result in locally hazardous travel
conditions due to snow coating some roads and areas of blowing
snow from the strong winds.
From: Dec 29, 2025 03:21
Until: Dec 29, 2025 13:30
Winter Weather Advisory
* WHAT...Snow and blowing snow causing localized hazardous travel.
Snow accumulations of up to one to two inches. Winds gusting as
high as 55 mph.
* WHERE...Boone, De Kalb, Ogle, Winnebago, Kane, Lake IL, McHenry,
and Northern Cook Counties.
* WHEN...Until 3 PM CST Monday.
* IMPACTS...Plan on slick road conditions. Areas of blowing snow
could significantly reduce visibility. The hazardous conditions
could impact the Monday morning commute.
* ADDITIONAL DETAILS...Any lingering moisture on untreated roads may
freeze as temperatures fall into the teens to around 20 degrees
overnight.
From: Dec 29, 2025 03:07
Until: Dec 29, 2025 13:15
Winter Weather Advisory
* WHAT...Snow expected. Total snow accumulations one to three
inches. Winds gusting as high as 50 MPH. Visibility reductions to
one mile possible with blowing snow.
* WHERE...Rock, Kenosha, Milwaukee, Racine, and Walworth Counties.
* WHEN...Until 6 PM CST Monday.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions will impact the Monday morning commute and perhaps the
evening commute. Gusty winds could bring down tree branches.
From: Dec 29, 2025 02:56
Until: Dec 29, 2025 11:00
Winter Weather Advisory
* WHAT...Snow expected. Total snow accumulations between 2 and 4
inches. Winds gusting as high as 50 MPH. Visibility reductions to
one mile possible with blowing snow.
* WHERE...Dodge, Jefferson, Ozaukee, Washington, and Waukesha
Counties.
* WHEN...Until 6 PM CST Monday.
* IMPACTS...Plan on slippery road conditions. Areas of blowing snow
could significantly reduce visibility. The hazardous conditions
will impact the Monday morning commute and perhaps the evening
commute. Gusty winds could bring down tree branches.
From: Dec 29, 2025 02:56
Until: Dec 29, 2025 11:00
Wind Advisory
* WHAT...Northwest winds 20 to 30 MPH with gusts up to 50 MPH.
* WHERE...Columbia, Dane, Green, Green Lake, Iowa, Lafayette,
Marquette, Rock, and Sauk Counties.
* WHEN...Until noon CST Monday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
From: Dec 29, 2025 02:34
Until: Dec 29, 2025 10:45
Wind Advisory
* WHAT...Northwest winds 20 to 30 MPH with gusts up to 50 MPH. A few
gusts to 55 MPH possible near Lake Michigan.
* WHERE...Portions of east central and southeast Wisconsin.
* WHEN...Until 6 PM CST Monday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
From: Dec 29, 2025 02:34
Until: Dec 29, 2025 10:45
Wind Advisory
* WHAT...West winds 25 to 35 mph with gusts of 45 to 55 mph expected.
* WHERE...Portions of central, east central, north central, and
northeast Illinois and northwest Indiana.
* WHEN...From 6 PM CST /7 PM EST/ this evening to 3 PM CST /4 PM
EST/ Monday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
From: Dec 28, 2025 21:01
Until: Dec 29, 2025 07:15
Wind Advisory
* WHAT...Northwest winds 20 to 30 mph with gusts up to 55 mph
expected.
* WHERE...Fond du Lac, Dodge, Jefferson, Kenosha, Racine, Walworth,
and Waukesha Counties.
* WHEN...From 6 PM this evening to 6 PM CST Monday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
From: Dec 28, 2025 20:57
Until: Dec 29, 2025 05:00
Wind Advisory
* WHAT...Northwest winds 20 to 30 mph with gusts up to 55 mph
expected.
* WHERE...Columbia, Dane, Green, Green Lake, Iowa, Lafayette,
Marquette, Rock, and Sauk Counties.
* WHEN...From 6 PM this evening to noon CST Monday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
From: Dec 28, 2025 20:57
Until: Dec 29, 2025 05:00
Wind Advisory
* WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph
expected.
* WHERE...Sheboygan, Milwaukee, Ozaukee, and Washington Counties.
* WHEN...From 6 PM this evening to 6 PM CST Monday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
From: Dec 28, 2025 20:57
Until: Dec 29, 2025 05:00
Winter Weather Advisory
* WHAT...Snow expected. Total snow accumulations between 2 and 4
inches. Winds gusting as high as 50 mph. Visibilities reductions
expected.
* WHERE...Dodge, Jefferson, Ozaukee, Washington, and Waukesha
Counties.
* WHEN...From 6 PM this evening to 6 PM CST Monday.
* IMPACTS...Plan on slippery road conditions. Areas of blowing snow
could significantly reduce visibility. The hazardous conditions
could impact the Monday morning and evening commutes. Gusty winds
could bring down tree branches.
From: Dec 28, 2025 19:10
Until: Dec 29, 2025 03:15
Wind Advisory
* WHAT...For the Dense Fog Advisory, visibility one quarter to one
half mile in dense fog. For the Wind Advisory, northwest winds 20
to 30 mph with gusts up to 50 mph expected.
* WHERE...Milwaukee, Ozaukee, and Washington Counties.
* WHEN...For the Dense Fog Advisory, until 3 PM CST this afternoon.
For the Wind Advisory, from 6 PM this evening to 6 PM CST Monday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result. Low
visibility could make driving conditions hazardous.
From: Dec 28, 2025 17:57
Until: Dec 29, 2025 02:00
Wind Advisory
* WHAT...Northwest winds 15 to 25 mph with gusts up to 45 mph
expected.
* WHERE...Portions of south central and southeast Wisconsin.
* WHEN...From 6 PM this evening to 6 PM CST Monday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
From: Dec 28, 2025 17:57
Until: Dec 29, 2025 02:00
Dense Fog Advisory
* WHAT...For the Dense Fog Advisory, visibility one quarter to one
half mile in dense fog. For the Wind Advisory, northwest winds 20
to 30 mph with gusts up to 50 mph expected.
* WHERE...Milwaukee, Ozaukee, and Washington Counties.
* WHEN...For the Dense Fog Advisory, until 3 PM CST this afternoon.
For the Wind Advisory, from 6 PM this evening to 6 PM CST Monday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result. Low
visibility could make driving conditions hazardous.
From: Dec 28, 2025 17:57
Until: Dec 29, 2025 02:00
Winter Weather Advisory
* WHAT...Snow expected. Total snow accumulations between 2 and 4
inches. Winds gusting as high as 50 mph.
* WHERE...Portions of south central and southeast Wisconsin.
* WHEN...From 6 PM this evening to noon CST Monday.
* IMPACTS...Plan on slippery road conditions. Areas of blowing snow
could significantly reduce visibility. The hazardous conditions
could impact the Monday morning commute. Gusty winds could bring
down tree branches.
From: Dec 28, 2025 16:56
Until: Dec 29, 2025 01:00
Wind Advisory
* WHAT...West winds 25 to 35 mph with gusts up to 50 mph expected.
* WHERE...Boone, De Kalb, Lee, Ogle, Winnebago, DuPage, Kane,
Kendall, Lake IL, McHenry, and Northern Cook Counties.
* WHEN...From 6 PM this evening to 3 PM CST Monday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* ADDITIONAL DETAILS...Wind-whipped snow showers Sunday night
through Monday morning may result in locally hazardous travel
conditions.
From: Dec 28, 2025 14:55
Until: Dec 29, 2025 01:00
Wind Advisory
* WHAT...For the Dense Fog Advisory, visibility one quarter mile or
less in dense fog. For the Wind Advisory, west winds 25 to 35 mph
with gusts up to 50 mph expected.
* WHERE...Boone, De Kalb, Lee, Ogle, Winnebago, DuPage, Kane,
Kendall, Lake IL, McHenry, and Northern Cook Counties.
* WHEN...For the Dense Fog Advisory, until 9 AM CST this morning.
For the Wind Advisory, from 6 PM this evening to 3 PM CST Monday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result. Low
visibility could make driving conditions hazardous.
* ADDITIONAL DETAILS...Wind-whipped snow showers Sunday night
through Monday morning may result in locally hazardous travel
conditions.
From: Dec 28, 2025 11:54
Until: Dec 28, 2025 22:00
Dense Fog Advisory
* WHAT...For the Dense Fog Advisory, visibility one quarter mile or
less in dense fog. For the Wind Advisory, west winds 25 to 35 mph
with gusts up to 50 mph expected.
* WHERE...Boone, De Kalb, Lee, Ogle, Winnebago, DuPage, Kane,
Kendall, Lake IL, McHenry, and Northern Cook Counties.
* WHEN...For the Dense Fog Advisory, until 9 AM CST this morning.
For the Wind Advisory, from 6 PM this evening to 3 PM CST Monday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result. Low
visibility could make driving conditions hazardous.
* ADDITIONAL DETAILS...Wind-whipped snow showers Sunday night
through Monday morning may result in locally hazardous travel
conditions.
From: Dec 28, 2025 11:54
Until: Dec 28, 2025 22:00
Wind Advisory
* WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph
expected. A few gusts to 55 mph may occur along the Lake Michigan
shoreline.
* WHERE...Portions of east central, south central, and southeast
Wisconsin.
* WHEN...From 6 PM this evening to 6 PM CST Monday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
From: Dec 28, 2025 08:15
Until: Dec 28, 2025 18:00
Winter Weather Advisory
* WHAT...Snow expected. Total snow accumulations between 2 and 4
inches. Winds gusting as high as 45 to 50 mph.
* WHERE...Green, Lafayette, Jefferson, and Waukesha Counties.
* WHEN...From 6 PM this evening to noon CST Monday.
* IMPACTS...Plan on slippery road conditions. Areas of blowing snow
could significantly reduce visibility. The hazardous conditions
could impact the Monday morning commute. Gusty winds could bring
down tree branches.
From: Dec 28, 2025 08:22
Until: Dec 28, 2025 17:00
Wind Advisory
* WHAT...West winds 25 to 35 mph with gusts up to 50 mph expected. A
few gusts to 55 mph possible.
* WHERE...Portions of central, east central, north central, and
northeast Illinois and northwest Indiana.
* WHEN...From 6 PM CST /7 PM EST/ Sunday to 6 PM CST /7 PM EST/
Monday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
Winds this strong can make driving difficult, especially for high
profile vehicles on north to south roads through open and exposed
areas.
* ADDITIONAL DETAILS...Wind-whipped snow showers Sunday night
through Monday morning may result in locally hazardous travel
conditions.
From: Dec 28, 2025 03:23
Until: Dec 28, 2025 13:30
