Alert archive / Illinois / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 42, NWS Chicago, IL
NWS Chicago, IL issued this severe thunderstorm warning at May 18, 2004, 12:46 AM CDT for LaSalle County, Illinois. It was in force for 44 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, 12:46 AM CDT (05:46 UTC)
- Expired
- May 18, 2004, 1:30 AM CDT
- In force
- 44 min
- Issued by
- NWS Chicago, IL
- Area
- Counties, with a storm outline in the text
County LaSalle County, IL
The radar
The Chicago radar (KLOT), 73 km from the middle of the area, began a volume at 05:47 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 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, 1:07 PM CDT | Severe Thunderstorm Warning | LOT | Iroquois | 38 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, 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.