Gillum 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 Gillum.

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

Heat Advisory issued September 2 at 3:04PM CDT until September 3 at 7:00PM CDT by NWS Quad Cities IA IL

* WHAT...Heat index values up to 102. * WHERE...Portions of northwest Illinois and east central and northeast Iowa. * WHEN...Until 7 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Extreme Heat Warning issued September 2 at 3:04PM CDT until September 4 at 7:00PM CDT by NWS Quad Cities IA IL

* WHAT...Dangerously hot conditions with heat index values up to 105. * WHERE...Portions of north central, northwest, and west central Illinois, east central and southeast Iowa, and northeast Missouri. * WHEN...Until 7 PM CDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

Heat Advisory issued September 2 at 2:47PM CDT until September 2 at 9:00PM CDT by NWS Chicago IL

* WHAT...Heat index values of around 105 expected. * WHERE...Boone, Winnebago, Central Cook, DuPage, Kane, Lake IL, McHenry, Northern Cook, and Southern Cook Counties. * WHEN...Until 9 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Heat Advisory issued September 2 at 2:47PM CDT until September 3 at 9:00PM CDT by NWS Chicago IL

* WHAT...Heat index values of around 105 expected today, then around 100 to 105 expected on Thursday. * WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. * WHEN...Until 9 PM CDT /10 PM EDT/ Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Air Quality Alert issued September 2 at 2:25PM CDT by NWS St Louis MO

An Orange air quality forecast means that maximum ozone concentrations are expected to reach levels that pose a health risk. Adverse health effects increase as air quality deteriorates. Ground- level ozone is an air contaminant which can cause breathing difficulties for children, older adults, as well as persons with respiratory problems. Reducing outdoor physical activity is recommended. If it is a regularly scheduled work day you are urged to consider telecommuting, carpooling, or utilizing public transit. Avoid excessive idling and do not top off when refueling motor vehicles. The use of gasoline-powered lawn equipment should be reduced or postponed until late in the day. For more information visit the St. Louis Clean Air Partnership at http://cleanair-stlouis.com/ For current Air Quality Index (AQI) values visit https://www.airnow.gov/

Heat Advisory issued September 2 at 2:24PM CDT until September 5 at 8:00PM CDT by NWS St Louis MO

* WHAT...Heat index values up to 104. * WHERE...Portions of south central, southwest, and west central Illinois and central, east central, northeast, and southeast Missouri. * WHEN...Until 8 PM CDT Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Heat Advisory issued September 2 at 2:24PM CDT until September 5 at 8:00PM CDT by NWS St Louis MO

* WHAT...Heat index values up to 106. * 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 Saturday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Extreme Heat Warning issued September 2 at 1:12PM CDT until September 5 at 8:00PM CDT by NWS Paducah KY

* WHAT...Dangerously hot conditions with heat index values 105 to 110. * WHERE...All of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. * WHEN...Until 8 PM CDT /9 PM EDT/ Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

Extreme Heat Warning issued September 2 at 11:14AM CDT until September 4 at 7:00PM CDT by NWS Lincoln IL

* WHAT...Dangerously hot conditions with heat index values up to around 105. Expect minimal relief overnight with lows in the mid 70s. * WHERE...Portions of central, east central, southeast, and west central Illinois. * WHEN...Until 7 PM CDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.