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Chicago, United States
Click any image to view larger versionPast Weather Alerts
5 of 427Dense Fog Advisory
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Central Cook, Lake IL, and Nor...
Dense Fog Advisory
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of north central and ...
Dense Fog Advisory
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Lake IN and Porter Counties. ...
Dense Fog Advisory
* WHAT...Visibility of one quarter mile or less in dense fog expected. * WHERE...In Illinois, Centr...
Dense Fog Advisory
* WHAT...Visibility of one quarter mile or less in dense fog expected. * WHERE...De Kalb, La Salle,...
Past Weather Alerts for Chicago
Dense Fog Advisory
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Central Cook, Lake IL, and Northern Cook Counties. * WHEN...Until 10 AM CST this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
Dense Fog Advisory
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of north central and northeast Illinois. * WHEN...Until 10 AM CST this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
Dense Fog Advisory
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Lake IN and Porter Counties. * WHEN...Until 10 AM CST this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
Dense Fog Advisory
* WHAT...Visibility of one quarter mile or less in dense fog expected. * WHERE...In Illinois, Central Cook, DuPage, Lake IL, Northern Cook, and Southern Cook Counties. In Indiana, Lake IN and Porter Counties. * WHEN...Until 3 PM CST Thursday. * IMPACTS...Low visibility could make driving conditions hazardous.
Dense Fog Advisory
* WHAT...Visibility of one quarter mile or less in dense fog expected. * WHERE...De Kalb, La Salle, Eastern Will, Grundy, Kane, Kankakee, Kendall, McHenry, Northern Will, and Southern Will Counties. * WHEN...Until noon CST Thursday. * IMPACTS...Low visibility could make driving conditions hazardous.
Special Weather Statement
Fog has developed over portions of the northern and northwest suburbs of Chicago in Illinois, some of which is locally dense, especially near the Wisconsin state line. If traveling, be prepared for sudden changes in visibility. If you encounter fog, slow down, maintain a safe following distance, and use your low beam headlights. Where locally dense fog develops, patchy slick spots may also occur where temperatures are at or below freezing.
Winter Weather Advisory
* WHAT...Lake effect snow showers. Additional snow accumulations of an inch or two possible, mainly near the lake. Winds gusting as high as 35 mph near the lake. * WHERE...Porter County. * WHEN...Until 6 PM CST this evening. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous.
Winter Weather Advisory
* WHAT...Lake effect snow causing localized hazardous travel. Additional snow accumulations in the most persistent snow showers between 2 and 4 inches, with locally higher amounts possible mainly east of State Road 49 and north of US Route 30. Winds gusting as high as 35 to 40 mph near the lakeshore. Some blowing and drifting snow is possible. * WHERE...Porter County. * WHEN...Until 6 PM CST this evening. * IMPACTS...Roads, and especially bridges and overpasses, will be slick and hazardous in spots. The hazardous conditions are expected to impact the Monday morning commute. * ADDITIONAL DETAILS...The worst conditions are expected to occur this morning into early this afternoon.
Winter Weather Advisory
* WHAT...Lake effect snow causing localized hazardous travel. Additional snow accumulations in the most persistent snow showers between 2 and 4 inches, with locally higher amounts possible mainly east of State Road 49 and north of US Route 30. Winds gusting as high as 35 to 40 mph near the lakeshore. Some blowing and drifting snow is possible. * WHERE...Porter County. * WHEN...Until noon CST Monday. * IMPACTS...Roads, and especially bridges and overpasses, will be slick and hazardous in spots. The hazardous conditions are expected to impact the Monday morning commute. * ADDITIONAL DETAILS...The worst conditions are expected to occur overnight into Monday morning.
Winter Weather Advisory
* WHAT...Lake effect snow causing localized hazardous travel. Additional snow accumulations in the most persistent snow showers between 2 and 4 inches, with locally higher amounts possible mainly east of State Road 49 and north of US Route 30. Winds gusting as high as 35 to 40 mph near the lakeshore. Some blowing and drifting snow is possible tonight into Monday. * WHERE...Porter County. * WHEN...Until noon CST Monday. * IMPACTS...Roads, and especially bridges and overpasses, will be slick and hazardous in spots. The hazardous conditions are expected to impact the Monday morning commute. * ADDITIONAL DETAILS...The worst conditions are expected to occur this evening into Monday morning.
Winter Weather Advisory
* WHAT...Lake effect snow expected. Total snow accumulations between 2 and 5 inches, with locally higher amounts possible mainly east of State Road 49 and north of US Route 30. Some blowing and drifting snow is possible Sunday night into Monday. * WHERE...Porter County. * WHEN...Until noon CST Monday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. The hazardous conditions are expected to impact the Monday morning commute. * ADDITIONAL DETAILS...A brief lull in snowfall may occur Sunday morning before another round of lake effect snow develops Sunday afternoon and evening through Monday morning.
Winter Weather Advisory
* WHAT...Lake effect snow expected. Total snow accumulations between 2 and 5 inches, with locally higher amounts possible mainly east of State Road 49 and north of US Route 30. Some blowing and drifting snow is possible Sunday night into Monday. * WHERE...Porter County. * WHEN...Until noon CST Monday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. The hazardous conditions are expected to impact the Monday morning commute. * ADDITIONAL DETAILS...A brief lull in snowfall may occur midday Sunday before another round of lake effect snow develops Sunday afternoon and evening through Monday morning.
Winter Weather Advisory
* WHAT...Lake effect snow expected. Total snow accumulations between 2 and 5 inches, with locally higher amounts possible mainly east of State Road 49 and north of US Route 30. Some blowing and drifting snow is possible Sunday night into Monday. * WHERE...Porter County. The highest totals are expected across the northeast half of the county. * WHEN...From midnight tonight to noon CST Monday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. The hazardous conditions are expected to impact the Monday morning commute. * ADDITIONAL DETAILS...A period of snow with some lake enhancement will develop late tonight through Sunday morning. A brief lull in snowfall may occur towards midday Sunday before another round of lake effect snow develops Sunday afternoon and evening through Monday morning.
Wind Advisory
* WHAT...West winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Boone, De Kalb, Lee, Central Cook, DuPage, Kane, Lake IL, McHenry, and Northern Cook Counties. * 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.
Red Flag Warning
...RED FLAG WARNING EXPANDED TO INCLUDE CHICAGO METRO... Conditions will turn very dry and windy this afternoon, making conditions supportive of brush fire spread. Even with rainfall last night generally 0.05 to 0.15 of an inch across northeastern Illinois, the combination of warm, dry, and windy conditions will cause fine fuels to dry out by early afternoon. As a result, the Red Flag Warning was expanded to include Cook, DuPage, Will, Kankakee, and Lake (IL) Counties until 8 PM this evening. The National Weather Service in Chicago has issued a Red Flag Warning, which is in effect until 8 PM CST this evening. * Affected Area...Lake IL, DuPage, Cook, Will and Kankakee. * Timing...Until 8 PM CST this evening. * Winds...Southwest 20 to 30 mph with gusts up 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.
Red Flag Warning
...RED FLAG WARNING EXPANDED TO INCLUDE CHICAGO METRO... Conditions will turn very dry and windy this afternoon, making conditions supportive of brush fire spread. Even with rainfall last night generally 0.05 to 0.15 of an inch across northeastern Illinois, the combination of warm, dry, and windy conditions will cause fine fuels to dry out by early afternoon. As a result, the Red Flag Warning was expanded to include Cook, DuPage, Will, Kankakee, and Lake (IL) Counties until 8 PM this evening. * Affected Area...Winnebago, Boone, McHenry, Ogle, Lee, De Kalb, Kane, La Salle, Kendall, Grundy and Livingston. * Timing...Until 8 PM CST this evening. * Winds...Southwest 20 to 30 mph with gusts up to 50 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.
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.
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.
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.
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. The National Weather Service in Chicago has issued a Fire Weather Watch, which is in effect from Wednesday morning through Wednesday evening. * Affected Area...Winnebago, Boone, McHenry, Lake IL, Ogle, Lee, De Kalb, Kane, DuPage, Cook, La Salle, Kendall, Grundy and Will. * Timing...From Wednesday morning through Wednesday evening. * Winds...Southwest 15 to 25 mph with gusts up to 40 mph. * Relative Humidity...As low as 15 percent. * Impacts...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended.
Special Weather Statement
Fog may cause visibilities to fall locally under one half mile early this morning. Use caution if out traveling. If you encounter fog, slow down, add extra stopping distance, and use your low beam headlights.
Dense Fog Advisory
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. * WHEN...Until 9 AM CST /10 AM EST/ this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
Special Weather Statement
Snow will end from north to south across the area early this morning. The threat of accumulating snow will end north of I-80 by 7 AM and across northwest Indiana by 830 AM. Behind the snow, lingering very fine light snow, snizzle, or very light freezing drizzle may linger for a couple of hours. If precipitation were to change to all freezing drizzle, the threat of icing on surfaces appears low since it would likely be light and temperatures will be warming to near freezing.
Special Weather Statement
A fast moving weather system will produce a short 3 to 5 hour period of freezing drizzle overnight into early Friday morning. While significant ice amounts are not expected, a minor glaze of ice will be possible on untreated surfaces such as sidewalks and side streets. Accordingly, motorists and walkers should be prepared for the possibility of some slick surfaces early Friday morning.
Special Weather Statement
A fast moving weather system will produce a short 3 to 5 hour period of accumulating snow overnight into early Friday morning. While significant snowfall amounts are not expected, a burst of snow, with rates up to 1 inch per hour, could result in a period of slick travel due to snow covered roads early Friday morning. Patchy freezing drizzle is also possible. Accordingly, motorists are urged to plan for extra time to reach their destination Friday morning.
Special Weather Statement
A band of snow will spread across the area this evening resulting in a coating to a half inch of snow. Immediately behind the snow there could be a 2 to 3 hour period of freezing drizzle which may result in slippery travel especially on untreated and elevated surfaces. If traveling this evening or overnight use caution and allow for extra travel time to reach your destination.
Winter Weather Advisory
* WHAT...Lake effect snow expected. Additional snow accumulations between 2 and 4 inches along the Cook County shore to 1 inch or less along and west of the Interstate 294 corridor. Localized totals over 4 inches possible along the shore. * WHERE...Central Cook, Northern Cook, and Southern Cook Counties. * WHEN...Until 4 PM CST this afternoon. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...A main lake effect snow band is expected to move over the area prior to sunrise, then settle along the Cook County shore, including downtown Chicago, through the day. Though the intensity of snow will gradually diminish through the day, localized snowfall rates over 1 inch per hour are expected this morning.
Winter Weather Advisory
* WHAT...Lake effect snow. Additional snow accumulations between 2 and 4 inches, with localized totals up to 5 inches, north of U.S. Route 30. * WHERE...Lake IN County. * WHEN...Until 6 PM CST this evening. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...A main lake effect snow band is expected to move over the area prior to sunrise, then settle along the Illinois shore and into northern Lake County through the day. Though the intensity of snow will gradually diminish through the day, snowfall rates this morning could surpass 1 inch per hour.
Winter Weather Advisory
* WHAT...Lake effect snow expected. Additional snow accumulations ranging from up to 3 inches near the Illinois-Indiana stateline to less than 1 inch west of Interstate 57. * WHERE...Eastern Will County. * WHEN...Until 4 PM CST this afternoon. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...Snowfall rates up to 1 inch per hour are possible as a lake effect snow band settles over the area late morning into early afternoon.
Winter Weather Advisory
* WHAT...Lake effect snow. Additional snow accumulations between 1 and 3 inches, with most of the snow falling by mid-morning. * WHERE...Porter County. * WHEN...Until noon CST today. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...Snowfall rates of over 1 inch per hour are possible through around sunrise across northern Porter County.
Winter Weather Advisory
* WHAT...Lake effect snow expected. Total snow accumulations could locally exceed 4 inches, especially near the Illinois-Indiana stateline. * WHERE...Eastern Will County. * WHEN...From 6 AM to 4 PM CST Saturday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...The band of snow is expected to shift back westward into parts of northeastern Illinois Saturday morning, and this could result in additional localized accumulations and travel impacts.
Winter Weather Advisory
* WHAT...Lake effect snow expected Saturday morning. Total snow accumulations could locally exceed 3 inches, especially near the lake. * WHERE...Central Cook and Southern Cook Counties. * WHEN...From 6 AM to 4 PM CST Saturday. * IMPACTS...Localized hazardous travel is expected on Saturday especially near the lake. * ADDITIONAL DETAILS...A band of lake effect snow is expected to shift back westward Saturday morning, and is expected to impact parts of northeastern Illinois on Saturday. While the footprint of accumulating snow is likely to be lower, localized additional accumulations and associated travel impacts are expected.
Winter Storm Warning
* WHAT...Heavy lake effect snow with total snow accumulations over 6 inches expected, mainly near and north of US Route 30. Isolated totals up to a foot are possible. * WHERE...Lake IN and Porter Counties. * WHEN...Until 6 PM CST Saturday. * IMPACTS...Travel could be very difficult to nearly impossible at times north of U.S. Route 30 with near white out conditions and snowfall rates of 2 or more inches per hour under the most intense portions of the band. * ADDITIONAL DETAILS...The Heaviest snowfall is expected late this evening through Saturday morning, when locally 2 inch per hour rates are expected at times. Some breaks in the snowfall are possible at times as the snow band wobbles tonight and Saturday.
Winter Weather Advisory
* WHAT...Lake effect snow expected Saturday morning. Total snow accumulations could locally exceed 3 inches, especially near the lake. * WHERE...Northern Cook County. * WHEN...From 6 AM to 4 PM CST Saturday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...The band of snow is expected to shift back westward into parts of northeastern Illinois Saturday morning. This will likely result in additional localized accumulations and travel impacts.
Winter Storm Watch
* WHAT...For the Winter Weather Advisory, snow expected. Total snow accumulations 2 to 3 inches, within a few hour period. For the Winter Storm Watch, heavy lake effect snow possible. Total snow accumulations locally in excess of 6 inches possible, mainly near Lake Michigan. * WHERE...Central Cook and Southern Cook Counties. * WHEN...For the Winter Weather Advisory, from 9 AM to 3 PM CST Friday. For the Winter Storm Watch, from Friday afternoon through late Friday night. * IMPACTS...Roads will likely become slick and hazardous. The hazardous conditions will likely impact parts of the Friday commutes. Visibilities may drop below 1/4 mile due to falling and blowing snow. * 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. Then, later Friday afternoon and evening, an intense band of heavy lake effect snow will develop over southern Lake Michigan, and may impact portions of central and southern Cook county near the lake for a period Friday evening before focusing eastward into northwestern Indiana later Friday night. While the residence time of this lake effect band over Cook county may only be 3 to 5 hours, the potential for heavy snow rates of 2+ inches per hour could result in localized accumulations exceeding 6 inches, particularly near the lake from the city southward.
Winter Weather Advisory
* WHAT...Two periods of accumulating lake effect snow expected. Total snow accumulations could locally exceed 5 inches, particularly near the lake. * WHERE...Northern Cook County. * WHEN...For the first Winter Weather Advisory, until 8 PM CST this evening. For the second Winter Weather Advisory, from 6 AM to 4 PM CST Saturday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. The hazardous conditions will impact this evenings commute. * ADDITIONAL DETAILS...Lake effect snow is expected to impact the area in two waves. The first will persist through this evening, before the lake effect band shifts east into Indiana for a period overnight. The band of snow is then expected to shift back westward into parts of northeastern Illinois Saturday morning. This will likely result in additional localized accumulations and travel impacts.
Winter Storm Warning
* WHAT...For the Winter Storm Warning through this evening, heavy lake effect snow. Snow accumulations locally in excess of 6 inches, particularly near the lake. For the Winter Weather Advisory on Saturday, another round of lake effect snow, with additional localized accumulations in excess of 3 inches possible. * WHERE...Central Cook and Southern Cook Counties. * WHEN...For the Winter Storm Warning, until midnight CST tonight. For the Winter Weather Advisory, from 6 AM to 4 PM CST Saturday. * IMPACTS...Travel will remain hazardous at times into this evening, particularly near the lake. Additional localized adverse impacts to travel are likely at times on Saturday. * ADDITIONAL DETAILS...Accumulating lake effect snow will continue into this evening, and will fall locally at 1 to 2 inch per hour rates at times, making for hazardous travel conditions. This will particularly be the case for areas in close proximity to the lake. This intense band of lake effect snow is expected to shift eastward into northwestern Indiana late this evening and overnight, thus resulting in a several hour break in accumulating snow across Cook county overnight. However, the band is expected to shift back westward Saturday morning, and is expected to impact parts of northeastern Illinois on Saturday. While the footprint of accumulating snow is likely to be lower on Saturday, localized additional accumulations and associated travel impacts are expected.
Winter Weather Advisory
* WHAT...Two periods of accumulating lake effect snow expected. Total snow accumulations could locally exceed 4 inches, particularly near the Indiana state line. * WHERE...Eastern Will County. * WHEN...For the first Winter Weather Advisory, from 6 PM this evening to midnight CST tonight. For the second Winter Weather Advisory, from 6 AM to 4 PM CST Saturday. * IMPACTS...Plan on slippery road conditions. * ADDITIONAL DETAILS...Lake effect snow is expected to impact the area in two waves. The first will occur through this evening, before the lake effect band shifts east into Indiana for a period tonight. The band of snow is then expected to shift back westward into parts of northeastern Illinois Saturday morning, and this could result in additional localized accumulations and travel impacts.
Winter Weather Advisory
* WHAT...For the Winter Storm Warning through this evening, heavy lake effect snow. Snow accumulations locally in excess of 6 inches, particularly near the lake. For the Winter Weather Advisory on Saturday, another round of lake effect snow, with additional localized accumulations in excess of 3 inches possible. * WHERE...Central Cook and Southern Cook Counties. * WHEN...For the Winter Storm Warning, until midnight CST tonight. For the Winter Weather Advisory, from 6 AM to 4 PM CST Saturday. * IMPACTS...Travel will remain hazardous at times into this evening, particularly near the lake. Additional localized adverse impacts to travel are likely at times on Saturday. * ADDITIONAL DETAILS...Accumulating lake effect snow will continue into this evening, and will fall locally at 1 to 2 inch per hour rates at times, making for hazardous travel conditions. This will particularly be the case for areas in close proximity to the lake. This intense band of lake effect snow is expected to shift eastward into northwestern Indiana late this evening and overnight, thus resulting in a several hour break in accumulating snow across Cook county overnight. However, the band is expected to shift back westward Saturday morning, and is expected to impact parts of northeastern Illinois on Saturday. While the footprint of accumulating snow is likely to be lower on Saturday, localized additional accumulations and associated travel impacts are expected.
Winter Storm Warning
* WHAT...Heavy lake effect snow with total snow accumulations over 6 inches expected, mainly near and north of US Route 30. Isolated totals up to a foot are possible. * WHERE...Lake IN and Porter Counties. * WHEN...From 6 PM this evening to 6 PM CST Saturday. * IMPACTS...Travel could be very difficult to nearly impossible at times north of U.S. Route 30 with near white out conditions and snowfall rates of 2 or more inches per hour under the most intense portions of the band. * ADDITIONAL DETAILS...The Heaviest snowfall is expected late this evening through Saturday morning, when locally 2 inch per hour rates are expected at times. Some breaks in the snowfall are possible at times as the snow band wobbles tonight and Saturday.
Winter Weather Advisory
* WHAT...Lake effect snow. Additional snow accumulations locally up to 5 inches near the lake. * WHERE...DuPage and Lake IL Counties. * WHEN...Until 8 PM CST this evening. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. The hazardous conditions will impact this evenings commute.
Winter Storm Warning
* WHAT...For the Winter Storm Warning, heavy lake effect snow. Snow accumulations locally in excess of 6 inches, particularly in areas near the lake. For the Winter Storm Watch, heavy lake effect snow possible, with additional accumulations possible into Saturday morning. * WHERE...Central Cook and Southern Cook Counties. * WHEN...For the Winter Storm Warning, until midnight CST tonight. For the Winter Storm Watch, from late tonight through Saturday morning. * IMPACTS...Travel could be very difficult at times, with near white out conditions and snowfall rates of 1 to 2 inches per hour under the most intense portions of the band through this evening. * ADDITIONAL DETAILS...A burst of accumulating snow is expected through early afternoon, with rates of 1 to 2 inches per hour at times. This will make for hazardous travel conditions. While a short break in the heavy snow is possible for a period this afternoon, a second round of intense lake effect snow is expected to bring at least a few hour period of snowfall rates up to 2 inches per hour this evening. Finally, the lake effect snow band may shift back westward along the state line and bring another period of heavy lake effect snow for several hours Saturday morning.