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Buffalo Grove Warnings, Watches and Advisories

SAFETY and DATA MESSAGE

Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Buffalo Grove.

Use the Radar Maps link provided to understand the trajectory of a storm.

NWS Active Alerts for IL - Map View

State: IL Total alerts: 6 Updated: May 16, 2026 3:40pm CDT

Severe Thunderstorm Warning

Area
Clinton, IL
Severe Thunderstorm Warning issued May 16 at 3:39PM CDT until May 16 at 4:30PM CDT by NWS St Louis MO

At 339 PM CDT, a severe thunderstorm was located over Breese, moving east at 20 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. This severe thunderstorm will be near... Breese, St. Rose, Germantown, Aviston and Jamestown around 340 PM CDT. Beckemeyer around 345 PM CDT. Other locations impacted by the severe thunderstorm include Stolletown, Huey, Keyesport and Ferrin. This includes the following State Parks... Eldon Hazlet State Recreation Area.

Severe Thunderstorm Warning

Area
St. Clair, IL
Severe Thunderstorm Warning issued May 16 at 3:37PM CDT until May 16 at 4:00PM CDT by NWS St Louis MO

At 337 PM CDT, a severe thunderstorm was located 6 miles south of Mascoutah, moving east at 20 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. This severe thunderstorm will be near... Mascoutah and Freeburg around 340 PM CDT. New Baden around 355 PM CDT. Other locations impacted by the severe thunderstorm include Fayetteville and St. Libory. This includes the following State Parks... Peabody-River King State Fish and Wildlife Area. This includes Interstate 64 in Illinois near exit 27.

Severe Thunderstorm Warning

Area
Marion, IL
Severe Thunderstorm Warning issued May 16 at 3:36PM CDT until May 16 at 4:15PM CDT by NWS St Louis MO

SVRLSX The National Weather Service in St Louis has issued a * Severe Thunderstorm Warning for... Northwestern Marion County in south central Illinois... * Until 415 PM CDT. * At 336 PM CDT, a severe thunderstorm was located over Patoka, or 12 miles northwest of Salem, moving east at 15 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * This severe thunderstorm will be near... Patoka around 340 PM CDT. Other locations impacted by the severe thunderstorm include Vernon.

Severe Thunderstorm Warning

Area
Lawrence, IL
Severe Thunderstorm Warning issued May 16 at 3:30PM CDT until May 16 at 3:45PM CDT by NWS Lincoln IL

At 330 PM CDT, a severe thunderstorm was located over Lawrenceville Vincennes Airport, or near Vincennes, moving northeast at 35 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. This severe storm will be near... Russellville around 335 PM CDT. Other locations impacted by this severe thunderstorm include Billett and Mount Carmel Airport.

Special Weather Statement

Area
Lawrence
Special Weather Statement issued May 16 at 3:15PM CDT by NWS Lincoln IL

At 314 PM CDT, Doppler radar was tracking a strong thunderstorm near St. Francisville, or near Lawrenceville, moving northeast at 30 mph. HAZARD...Wind gusts up to 50 mph and penny size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Vincennes, Lawrenceville, St. Francisville, Russellville, Lawrenceville Vincennes Airport, Billett, Pinkstaff, and Mount Carmel Airport.

Flood Warning

Area
Clinton, IL
Flood Warning issued May 16 at 8:35AM CDT until May 19 at 7:00PM CDT by NWS St Louis MO

...The Flood Warning continues for the following rivers in Illinois... Kaskaskia River at Carlyle. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Kaskaskia River at Carlyle. * WHEN...Until Tuesday evening. * IMPACTS...At 20.3 feet, Township roads downstream in Covington begin flooding near this height. * ADDITIONAL DETAILS... - At 8:00 AM CDT Saturday the stage was 19.5 feet. - Forecast...The river is expected to fall below flood stage early Monday afternoon and continue falling to 12.8 feet Saturday, May 23. - Flood stage is 16.5 feet.

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