Wind Advisory Expiration for McHenry Co., IL

WxNotify C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX WWUS73 KLOT 182352 NPWLOT URGENT - WEATHER MESSAGE National Weather Service Chicago IL 552 PM CST Wed Feb 18 2026 /O.EXP.KLOT.WI.Y.0002.000000T0000Z-260219T0000Z/ Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage- Northern Cook-Central Cook- Including the cities of Oak Lawn, Downers Grove, Rockford, Sycamore, Naperville, DeKalb, Woodstock, Oak Park, Chicago, Algonquin, Mundelein, Dixon, Rochelle, Schaumburg, Cicero, Wheaton, La Grange, Aurora, Evanston, Des Plaines, Buffalo Grove, Carol Stream, Crystal Lake, Byron, McHenry, Belvidere, Elgin, Gurnee, Lombard, Northbrook, Waukegan, Palatine, and Oregon 552 PM CST Wed Feb 18 2026 ...WIND ADVISORY WILL EXPIRE AT 6 PM CST THIS EVENING... Wind gusts continue to ease with sunset. Accordingly, the Wind Advisory will be allowed to expire. https://p.wxn.io/wod3m Source: nwws © 2026 WxNotify. All rights reserved.

Wind Advisory for McHenry Co., IL until 6:00 PM CST 2/18

WxNotify C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX WWUS73 KLOT 182042 NPWLOT URGENT - WEATHER MESSAGE National Weather Service Chicago IL 242 PM CST Wed Feb 18 2026 /O.CON.KLOT.WI.Y.0002.000000T0000Z-260219T0000Z/ Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage- Northern Cook-Central Cook- Including the cities of Crystal Lake, Palatine, Wheaton, Gurnee, McHenry, Woodstock, Oak Park, Belvidere, Waukegan, Lombard, DeKalb, Oak Lawn, Dixon, Sycamore, Oregon, Rochelle, Byron, Evanston, Downers Grove, Carol Stream, Mundelein, La Grange, Northbrook, Algonquin, Aurora, Naperville, Buffalo Grove, Elgin, Schaumburg, Des Plaines, Cicero, Chicago, and Rockford 242 PM CST Wed Feb 18 2026 ...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING... * WHAT...Southwest winds 20 to 30 mph with gusts up to 45 mph occurring. * WHERE...Boone, De Kalb, Lee, Ogle, Winnebago, 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. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && https://p.wxn.io/lhg4q Source: nwws © 2026 WxNotify. All rights reserved.

Red Flag Warning for McHenry Co., IL until 8:00 PM CST 2/18

WxNotify C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX WWUS83 KLOT 182024 RFWLOT URGENT - FIRE WEATHER MESSAGE National Weather Service Chicago IL 224 PM CST Wed Feb 18 2026 /O.CON.KLOT.FW.W.0001.000000T0000Z-260219T0200Z/ Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-Cook- La Salle-Kendall-Grundy-Will-Kankakee-Livingston- 224 PM CST Wed Feb 18 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CST THIS EVENING... * Affected Area...Winnebago, Boone, McHenry, Lake IL, Ogle, Lee, De Kalb, Kane, DuPage, Cook, La Salle, Kendall, Grundy, Will, Kankakee and Livingston. * Timing...Until 8 PM CST this evening. * Winds...Southwest 20 to 30 mph with gusts up to 45 mph. * Relative Humidity...As low as 17 percent. * Impacts...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && https://p.wxn.io/4m656 Source: nwws © 2026 WxNotify. All rights reserved.

Red Flag Warning for McHenry Co., IL until 8:00 PM CST 2/18

WxNotify C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX WWUS83 KLOT 181503 RFWLOT URGENT - FIRE WEATHER MESSAGE National Weather Service Chicago IL 903 AM CST Wed Feb 18 2026 ...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. /O.CON.KLOT.FW.W.0001.260218T1600Z-260219T0200Z/ Winnebago-Boone-McHenry-Ogle-Lee-De Kalb-Kane-La Salle-Kendall- Grundy-Livingston- 903 AM CST Wed Feb 18 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM CST 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. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && https://p.wxn.io/9vdmi Source: nwws © 2026 WxNotify. All rights reserved.

Wind Advisory for McHenry Co., IL until 6:00 PM CST 2/18

WxNotify C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX WWUS73 KLOT 181455 NPWLOT URGENT - WEATHER MESSAGE National Weather Service Chicago IL 855 AM CST Wed Feb 18 2026 /O.EXA.KLOT.WI.Y.0002.260218T1600Z-260219T0000Z/ Boone-McHenry-Lake IL-Lee-De Kalb-Kane-DuPage-Northern Cook- Central Cook- Including the cities of McHenry, La Grange, Wheaton, Algonquin, Oak Lawn, Elgin, Palatine, Mundelein, Schaumburg, Evanston, Dixon, Gurnee, Downers Grove, Northbrook, Lombard, Woodstock, Naperville, Chicago, Sycamore, Belvidere, Buffalo Grove, DeKalb, Carol Stream, Des Plaines, Waukegan, Aurora, Cicero, Oak Park, and Crystal Lake 855 AM CST Wed Feb 18 2026 ...WIND ADVISORY IN EFFECT UNTIL 6 PM CST THIS EVENING... * 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. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. && https://p.wxn.io/23rlw Source: nwws © 2026 WxNotify. All rights reserved.

Red Flag Warning for McHenry Co., IL until 8:00 PM CST 2/18

WxNotify C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX WWUS83 KLOT 180700 RFWLOT URGENT - FIRE WEATHER MESSAGE National Weather Service Chicago IL 100 AM CST Wed Feb 18 2026 /O.UPG.KLOT.FW.A.0001.260218T1500Z-260219T0200Z/ /O.NEW.KLOT.FW.W.0001.260218T1600Z-260219T0200Z/ Winnebago-Boone-McHenry-Ogle-Lee-De Kalb-Kane-La Salle-Kendall- Grundy- 100 AM CST Wed Feb 18 2026 ...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 8 PM CST THIS EVENING... 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. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && https://p.wxn.io/2q4ux Source: nwws © 2026 WxNotify. All rights reserved.

Red Flag Watch for McHenry Co., IL until 8:00 PM CST 2/18

WxNotify C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX WWUS83 KLOT 180332 RFWLOT URGENT - FIRE WEATHER MESSAGE National Weather Service Chicago IL 932 PM CST Tue Feb 17 2026 ...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. /O.CON.KLOT.FW.A.0001.260218T1500Z-260219T0200Z/ Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-Cook- La Salle-Kendall-Grundy-Will- 932 PM CST Tue Feb 17 2026 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM 9 AM CST WEDNESDAY 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 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. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings. && https://p.wxn.io/eulac Source: nwws © 2026 WxNotify. All rights reserved.