South Twigg Warnings, Watches and Advisories

When a severe thunderstorm warning is issued, the storm may produce damaging winds, large hail, dangerous lightning, and heavy rain. In some cases, heavy rainfall produced by a severe storm can also lead to flash flooding. 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 South Twigg.

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

Heat Advisory issued September 1 at 3:22AM CDT until September 4 at 8:00PM CDT by NWS St Louis MO

* WHAT...Heat index values up to 108. * WHERE...In Illinois, Madison IL, Monroe IL, and Saint Clair IL Counties. In Missouri, Jefferson MO, Saint Charles MO, Saint Louis City MO, and Saint Louis MO Counties. * WHEN...Until 8 PM CDT Friday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Heat Advisory issued September 1 at 3:22AM CDT until September 4 at 8:00PM CDT by NWS St Louis MO

* WHAT...Heat index values up to 105. * WHERE...Portions of south central, southwest, and west central Illinois and central, east central, northeast, and southeast Missouri. * WHEN...Until 8 PM CDT Friday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Heat Advisory issued September 1 at 2:48AM CDT until September 3 at 7:00PM CDT by NWS Lincoln IL

* WHAT...Afternoon Heat index values up to 105 expected, only falling into the mid to upper 70s at night. * WHERE...Marshall, McLean, Woodford, Champaign, Edgar, and Vermilion Counties. * WHEN...From 1 PM this afternoon to 7 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Heat Advisory issued September 1 at 2:48AM CDT until September 3 at 7:00PM CDT by NWS Lincoln IL

* WHAT...Afternoon Heat index values up to 105, only falling into the mid to upper 70s at night. * WHERE...Portions of central, east central, southeast, and west central Illinois. * WHEN...Until 7 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Heat Advisory issued September 1 at 2:32AM CDT until September 3 at 7:00PM CDT by NWS Quad Cities IA IL

* WHAT...Heat index values up to 104. * WHERE...Portions of northwest and west central Illinois, east central and southeast Iowa, and northeast Missouri. * WHEN...Until 7 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Heat Advisory issued September 1 at 2:32AM CDT until September 3 at 7:00PM CDT by NWS Quad Cities IA IL

* WHAT...Heat index values up to 101. * WHERE...In Illinois, Carroll and Whiteside Counties. In Iowa, Clinton County. * WHEN...Until 7 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Heat Advisory issued September 1 at 2:32AM CDT until September 3 at 7:00PM CDT by NWS Quad Cities IA IL

* WHAT...Heat index values up to 101 expected. * WHERE...Bureau and Putnam Counties. * WHEN...From 1 PM this afternoon to 7 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Heat Advisory issued September 1 at 1:48AM CDT until September 1 at 9:00PM CDT by NWS Chicago IL

* WHAT...Heat index values of 100 to 110 expected. * WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. * WHEN...For the first Heat Advisory, from noon CDT /1 PM EDT/ today to 9 PM CDT /10 PM EDT/ this evening. For the second Heat Advisory, from noon CDT /1 PM EDT/ to 9 PM CDT /10 PM EDT/ Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Heat Advisory issued September 1 at 1:48AM CDT until September 1 at 9:00PM CDT by NWS Chicago IL

* WHAT...Heat index values of 100 to 110 expected. * WHERE...Boone, De Kalb, Lee, Ogle, Winnebago, Central Cook, DuPage, Kane, Lake IL, McHenry, and Northern Cook Counties. * WHEN...From noon today to 9 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...If showers and thunderstorms move across the area later this morning, the hot temperatures may not materialize.

Heat Advisory issued September 1 at 1:48AM CDT until September 2 at 9:00PM CDT by NWS Chicago IL

* WHAT...Heat index values of 100 to 110 expected. * WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. * WHEN...For the first Heat Advisory, from noon CDT /1 PM EDT/ today to 9 PM CDT /10 PM EDT/ this evening. For the second Heat Advisory, from noon CDT /1 PM EDT/ to 9 PM CDT /10 PM EDT/ Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Heat Advisory issued September 1 at 12:42AM CDT until September 4 at 8:00PM CDT by NWS Paducah KY

* WHAT...Daily peak heat index values from 100 to 108 degrees. * WHERE...Portions of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. * WHEN...Until 8 PM CDT /9 PM EDT/ Friday. * IMPACTS...Prolonged duration hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Heat index values above 100 degrees may continue into Saturday. Several warm record overnight low temperatures in the mid-70s is possible this week.