Lake Forest, IL Warnings, Watches and Advisories

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 Lake Forest.

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

Severe Thunderstorm Warning issued November 4 at 10:03PM CST until November 4 at 10:45PM CST by NWS St Louis MO

SVRLSX The National Weather Service in St Louis has issued a * Severe Thunderstorm Warning for... Southeastern Calhoun County in southwestern Illinois... Southeastern Jersey County in southwestern Illinois... Northwestern Madison County in southwestern Illinois... Northeastern Saint Charles County in east central Missouri... Northeastern Saint Louis County in east central Missouri... * Until 1045 PM CST. * At 1003 PM CST, severe thunderstorms were located along a line from 7 miles north of St. Peters to over Cottleville, or along a line from 6 miles east of St. Paul to over Cottleville, moving northeast at 40 mph. HAZARD...60 mph wind gusts and small hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * This severe thunderstorm will be near... St. Peters, Cottleville, Weldon Spring, O'Fallon, Dardenne Prairie and St. Paul around 1005 PM CST. St. Charles and Harvester around 1010 PM CST. Other locations impacted by the severe thunderstorm include Kampville, Golden Eagle, Brussels, Deer Plain, Otterville, McClusky and Delhi. This includes the following State Parks... Confluence State Park, First Missouri State Capitol Historic Site and Pere Marquette State Park. This includes Interstate 70 in Missouri between exits 217 and 231.

Wind Advisory issued November 4 at 9:48PM CST until November 5 at 3:00PM CST by NWS Chicago IL

* WHAT...South winds 20 to 25 mph with gusts up to 45 mph expected. * WHERE...Portions of central, east central and northeast Illinois and northwest Indiana. * WHEN...From 6 AM CST /7 AM EST/ to 3 PM CST /4 PM EST/ Tuesday. * IMPACTS...Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Wind Advisory issued November 4 at 9:17PM CST until November 5 at 2:00PM CST by NWS Lincoln IL

* WHAT...South winds 20 to 25 mph with gusts up to 45 mph expected. * WHERE...Portions of central and east central Illinois, generally east of a Pekin to Decatur to Mattoon line. * WHEN...Until 2 PM CST Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. * ADDITIONAL DETAILS...The strongest winds are expected during the morning hours.

Flood Watch issued November 4 at 7:43PM CST until November 5 at 12:00PM CST by NWS St Louis MO

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of Illinois, including the following areas, Bond IL, Clinton IL, Fayette IL, Madison IL, Marion IL, Monroe IL, Randolph IL, Saint Clair IL and Washington IL and Missouri, including the following areas, Crawford MO, Franklin MO, Iron MO, Jefferson MO, Madison MO, Reynolds MO, Saint Charles MO, Saint Louis City MO, Saint Louis MO, Sainte Genevieve MO and Washington MO. * WHEN...Through Tuesday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - An additional 1 to 3 inches of rain from thunderstorms is likely through Tuesday morning, with a narrow corridor of up to 5 inches possible. This may lead to flash flooding, or worsen flooding that is already ongoing from previous rainfall.