Alert archive / Illinois / Flash Flood Warnings in 2009
Flash Flood Warning 29, NWS Paducah, KY
NWS Paducah, KY issued this flash flood warning at Jun 11, 2009, 12:33 AM CDT for 4 counties in Illinois. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 11, 2009, 12:33 AM CDT (05:33 UTC)
- Expired
- Jun 11, 2009, 3:30 AM CDT
- In force
- 3 hr
- Issued by
- NWS Paducah, KY
- Area
- Storm-based polygon
- Flood severity
- None
Counties Gallatin County, IL, Hamilton County, IL, Saline County, IL, White County, IL
The radar
The Evansville,IN radar (KVWX), 68 km from the middle of the area, began a volume at 05:36 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 nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 5.6 hours before the alert went out and 249 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 729 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 1199 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 111 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.4
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Paducah, KY wrote its last area forecast discussion before this flash flood warning went out at Jun 10, 2:20 PM CDT, 10 hours 13 minutes earlier.
Area forecast discussion, Jun 10, 2:20 PM CDT, 10 hours 13 minutes before
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</html>Hazardous weather outlook, Jun 10, 11:32 PM CDT, 1 hour 1 minute before
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Special weather statement, Jun 11, 12:20 AM CDT, 13 minutes before
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</html>The office that day
Everything else NWS Paducah, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 10:54 PM CDT | Severe Thunderstorm Warning | PAH | Henderson | 36 min |
| Jun 10, 11:05 PM CDT | Areal Flood Advisory | PAH | Henderson, Union | 3 hr |
| Jun 11, 4:17 PM CDT | Severe Thunderstorm Warning | PAH | Henderson | 43 min |
| Jun 11, 4:20 PM CDT | Severe Thunderstorm Warning | PAH | Daviess | 43 min |
| Jun 11, 4:32 PM CDT | Tornado Warning | PAH | Henderson | 25 min |
| Jun 11, 4:48 PM CDT | Severe Thunderstorm Warning | PAH | Henderson, Union, Webster | 17 min |
| Jun 11, 4:51 PM CDT | Tornado Warning | PAH | Daviess, Henderson | 24 min |
| Jun 11, 4:57 PM CDT | Areal Flood Advisory | PAH | Daviess, Henderson, Union | 2 hr |
| Jun 11, 5:18 PM CDT | Tornado Warning | PAH | Daviess, Henderson | 34 min |
| Jun 10, 9:25 PM CDT | Severe Thunderstorm Warning | PAH | Saline, Williamson | 65 min |
| Jun 10, 10:32 PM CDT | Areal Flood Advisory | PAH | Gallatin, Hamilton, Saline, White | 3 hr |
| Jun 10, 11:43 PM CDT | Areal Flood Advisory | PAH | Franklin, Hamilton, Jefferson, Perry, Wayne | 3 hr |
| Jun 11, 4:34 PM CDT | Severe Thunderstorm Warning | PAH | Wabash | 26 min |
| Jun 11, 4:53 PM CDT | Severe Thunderstorm Warning | PAH | Edwards, Wayne | 25 min |
| Jun 10, 11:10 PM CDT | Severe Thunderstorm Warning | PAH | Bollinger, Cape Girardeau, Perry | 35 min |
Nearby
Flash Flood Warnings in Illinois, 2009Every flash flood warning in 2009
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.