Alert archive / Illinois / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 43, NWS Chicago, IL
NWS Chicago, IL issued this severe thunderstorm warning at May 18, 2004, 1:07 PM CDT for Iroquois County, Illinois; Benton County, Indiana. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 18, 2004, 1:07 PM CDT (18:07 UTC)
- Expired
- May 18, 2004, 1:45 PM CDT
- In force
- 38 min
- Issued by
- NWS Chicago, IL
- Area
- Counties, with a storm outline in the text
Counties Iroquois County, IL, Benton County, IN
The radar
The Chicago radar (KLOT), 112 km from the middle of the area, began a volume at 18:08 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 18, 12:00 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 18, 12:45 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Chicago, IL wrote its last area forecast discussion before this severe thunderstorm warning went out at May 18, 12:45 PM CDT, 22 minutes earlier.
Area forecast discussion, May 18, 12:45 PM CDT, 22 minutes before
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</html>Hazardous weather outlook, May 18, 12:30 PM CDT, 37 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHICAGO IL 1230 PM CDT TUE MAY 18 2004 ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011- 019-191100- BENTON-BOONE-COOK-DE KALB-DU PAGE-FORD-GRUNDY-IROQUOIS-JASPER- KANE-KANKAKEE-KENDALL-LA SALLE-LAKE-LAKE IN-LEE-LIVINGSTON- MCHENRY-NEWTON-OGLE-PORTER-WILL-WINNEBAGO- 1230 PM CDT TUE MAY 18 2004 THIS PORTION OF THE HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL AND NORTHEAST ILLINOIS...AND NORTHWEST INDIANA. .DAY ONE...TODAY AND TONIGHT THERE IS A SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 700 PM CDT FOR FORD...IROQUOIS...AND LIVINGSTON COUNTIES IN ILLINOIS ALONG WITH BENTON....JASPER...AND NEWTON COUNTIES IN NORTHWEST INDIANA. SCATTERED THUNDERSTORMS WILL CONTINUE TO DEVELOP THIS AFTERNOON ACROSS THE WATCH AREA. SOME OF THESE STORMS WILL BE CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING WINDS ACROSS THIS AREA. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS AND HEAVY RAIN ALL AREAS LATE TOMORROW AFTERNOON THROUGH FRIDAY NIGHT. TODAYS COLD FRONT WILL MOVE BACK AS A WARM FRONT LATE TOMORROW AND THEN WOBBLE AROUND THROUGH FRIDAY NIGHT. A VERY UNSTABLE AND HUMID AIRMASS ALONG AND SOUTH OF THE FRONT WILL LEAD TO THE POSSIBILITY OF SEVERAL PERIODS OF SEVERE STORMS AND HEAVY RAINS BEGINNING LATE TOMORROW AND THEN CONTINUING INTO FRIDAY NIGHT. MORE STORMS POSSIBLE ON SUNDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON INTO THIS EVENING. && COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO WEBPAGE: WWW.CRH.NOAA.GOV/LOT (LOWER CASE) LMZ740>746-766-191100- WINTHROP HARBOR TO WILMETTE HARBOR-WILMETTE HARBOR TO NORTHERLY ISLAND-NORTHERLY ISLAND TO CALUMET HARBOR-CALUMET HARBOR TO GARY- GARY TO BURNS HARBOR-BURNS HARBOR TO MICHIGAN CITY-MICHIGAN CITY TO NEW BUFFALO-LAKE MICHIGAN- 1230 PM CDT TUE MAY 18 2004 THIS PORTION OF THE HAZARDOUS WEATHER OUTLOOK IS FOR THE ILLINOIS AND INDIANA WATERS OF LAKE MICHIGAN. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THUNDERSTORMS ARE POSSIBLE LATE TOMORROW INTO FRIDAY NIGHT. MORE STORMS POSSIBLE SUNDAY. && COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO WEBPAGE: WWW.CRH.NOAA.GOV/LOT (LOWER CASE) NDM
In the hours before
Local storm report, May 18, 12:56 PM CDT, 11 minutes before
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</html>The office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 17, 9:42 PM CDT | Severe Thunderstorm Warning | LOT | Boone, Winnebago | 48 min |
| May 17, 10:34 PM CDT | Special Marine Warning | LOT | 86 min | |
| May 17, 10:34 PM CDT | Special Marine Warning | LOT | 86 min | |
| May 17, 11:20 PM CDT | Severe Thunderstorm Warning | LOT | Lake | 25 min |
| May 17, 11:43 PM CDT | Flash Flood Warning | LOT | Lake, McHenry | 6 hr |
| May 17, 11:53 PM CDT | Special Marine Warning | LOT | 97 min | |
| May 17, 11:53 PM CDT | Special Marine Warning | LOT | 97 min | |
| May 17, 11:58 PM CDT | Severe Thunderstorm Warning | LOT | Lake | 47 min |
| May 18, 12:25 AM CDT | Flash Flood Warning | LOT | Cook | 5 hr |
| May 18, 12:46 AM CDT | Severe Thunderstorm Warning | LOT | LaSalle | 44 min |
| May 18, 1:44 PM CDT | Severe Thunderstorm Warning | LOT | Benton | 46 min |
| May 18, 2:09 PM CDT | Severe Thunderstorm Warning | LOT | Jasper, Newton | 51 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 2004Severe Thunderstorm Warnings in Indiana, 2004Every severe thunderstorm warning in 2004
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.