Alert archive / Illinois / Flash Flood Warnings in 2007
Flash Flood Warning 12, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at May 10, 2007, 3:32 PM CDT for Madison County, Illinois. It was in force for 4 hr. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 10, 2007, 3:32 PM CDT (20:32 UTC)
- Expired
- May 10, 2007, 7:30 PM CDT
- In force
- 4 hr
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
County Madison County, IL
The radar
The St Louis radar (KLSX), 69 km from the middle of the area, began a volume at 20:35 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 10, 4:40 PM CDT | HEAVY RAIN 3 | 1 Sw Alton, IL | 3 INCHES OF RAIN SINCE YESTERDAY. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 8.5 hours before the alert went out and 185 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2262 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 69 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KLSX 102035 FFWLSX ILC119-110030- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 332 PM CDT THU MAY 10 2007 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * FLASH FLOOD WARNING FOR... NORTHERN MADISON COUNTY IN SOUTHWEST ILLINOIS * UNTIL 730 PM CDT * AT 330 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED THUNDERSTORMS PRODUCING HEAVY RAINFALL ACROSS NORTHERN MADISON COUNTY...EXTENDING FROM WEST ALTON TO NEAR DORSEY. THE STORMS WERE MOVING SLOWLY TO THE EAST AT 5 MPH. DOPPLER RADAR ESTIMATES 2 TO 3 INCHES OF RAIN HAS FALLEN SINCE 200 PM. * FLASH FLOODING CAN BE EXPECTED ACROSS THE AREA...AND WILL BE AFFECTING WORDEN...PRAIRIETOWN...LIVINGSTON...GODFREY AND DORSEY. ADDITIONAL RAINFALL AMOUNTS OF 2 INCHES ARE POSSIBLE IN THE WARNED AREA. WOOD RIVER AND INDIAN CREEK WILL BE AFFECTED BY THIS RAINFALL. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING. LAT...LON 3899 9028 3879 9008 3883 8963 3900 8969 $$ GLASS
2 follow-up statements
000 WGUS73 KLSX 102147 FFSLSX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 446 PM CDT THU MAY 10 2007 ILC119-110030- MADISON IL- 446 PM CDT THU MAY 10 2007 ...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR NORTHERN MADISON COUNTY. AT 443 PM CDT...TRAINED WEATHER SPOTTERS REPORTED THREE INCHES OF RAINFALL HAS OCCURRED IN ALTON, IL. RADAR ESTIMATES UP TO 5 INCHES OF RAINFALL HAS OCCURRED WITHIN THE WARNED AREA. LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO ALTON... WORDEN...PRAIRIETOWN...LIVINGSTON...GODFREY AND DORSEY. THE FOLLOWING CREEKS AND RIVERS WILL BE AFFECTED BY THIS HEAVY RAINFALL...WOOD RIVER AND INDIAN CREEK A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. LAT...LON 3899 9028 3879 9008 3883 8963 3900 8969 $$ CVKING
000 WGUS73 KLSX 102345 FFSLSX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 646 PM CDT THU MAY 10 2007 ILC119-102356- MADISON IL- 646 PM CDT THU MAY 10 2007 ...THE FLASH FLOOD WARNING HAS BEEN CANCELLED FOR NORTHERN MADISON COUNTY... THE STORMS WHICH PRODUCED THE HEAVY RAINS EARLIER HAVE MOVED OUT OF THE COUNTY AND A CHECK WITH AREA LAW ENFORCEMENT INDICATES THAT FLOODING IS NO LONGER A PROBLEM IN THE AREA. LAT...LON 3899 9028 3879 9008 3883 8963 3900 8969 $$ CVKING
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 1:52 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Saint Clair | 38 min |
| May 10, 2:52 PM CDT | Severe Thunderstorm Warning | LSX | Jersey | 38 min |
| May 10, 2:55 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 28 min |
| May 10, 3:43 PM CDT | Severe Thunderstorm Warning | LSX | Jersey | 47 min |
| May 10, 3:52 PM CDT | Severe Thunderstorm Warning | LSX | Marion | 38 min |
| May 10, 4:06 PM CDT | Flash Flood Warning | LSX | Jersey | 4 hr |
| May 10, 5:02 PM CDT | Flash Flood Warning | LSX | Greene | 4 hr |
| May 10, 6:25 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 50 min |
Nearby
Flash Flood Warnings in Illinois, 2007Every flash flood warning in 2007
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.