Alert archive / Illinois / Flash Flood Warnings in 2009
Flash Flood Warning 33, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jun 8, 2009, 6:46 PM CDT for Clinton County, Saint Clair County, Washington County, Illinois. It was in force for 6 hr. 5 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 8, 2009, 6:46 PM CDT (23:46 UTC)
- Expired
- Jun 9, 2009, 12:30 AM CDT
- In force
- 6 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Clinton County, IL, Saint Clair County, IL, Washington County, IL
The radar
The St Louis radar (KLSX), 104 km from the middle of the area, began a volume at 23:49 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 |
|---|---|---|---|
| Jun 8, 6:51 PM CDT | FLOOD | 1 W Okawville, IL | 12 INCHES OF WATER OVER HIGHWAY 177 ONE MILE WEST OF OKAWVILLE |
| Jun 8, 7:11 PM CDT | FLOOD | Addieville, IL | STREET FLOODING IN ADDIEVILLE |
| Jun 8, 7:35 PM CDT | FLASH FLOOD | Addieville, IL | WATER OVER THE ROAD AT SR 153 AND HIGHWAY 10. ROAD IS UNSAFE FOR TRAFFIC. DEPUTIES ARE ON SITE. |
| Jun 8, 9:31 PM CDT | FLASH FLOOD | Addieville, IL | COUNTY HIGHWAY 1 CLOSED FROM HIGHWAY 27 TO ADDIEVILLE...2 FEET OF WATER REPORTED OVER THE ROADWAY |
| Jun 8, 9:50 PM CDT | FLOOD | Marissa, IL | WATER ON ROUTE 4 AT SCHOOL VIEW DRIVE AND ON LICKENBROCK SCHOOL ROAD 1 MILE NORTH OF DARMSTADT ROAD |
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, 11.8 hours before the alert went out and 216 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
- 972 J/kg
- Mixed-layer CIN
- -140 J/kg
- Mixed-layer LCL
- 693 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 78 m²/s²
- 0-3 km storm-relative helicity
- 106 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS53 KLSX 082346 FFWLSX ILC027-163-189-090530- /O.NEW.KLSX.FF.W.0033.090608T2346Z-090609T0530Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 646 PM CDT MON JUN 8 2009 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * FLASH FLOOD WARNING FOR... SOUTHEASTERN ST. CLAIR COUNTY IN SOUTHWEST ILLINOIS SOUTHWESTERN CLINTON COUNTY IN SOUTH CENTRAL ILLINOIS WESTERN WASHINGTON COUNTY IN SOUTH CENTRAL ILLINOIS * UNTIL 1230 AM CDT * AT 639 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. THESE THUNDERSTORMS HAVE PRODUCED UP TO 2.5 INCHES. MORE THUNDERSTORMS ARE EXPECTED TO FORM AND MOVE ACROSS THE SAME AREAS WHICH WILL CONTRIBUTE TO FLASH FLOODING. * RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... MASCOUTAH...NASHVILLE...NEW BADEN...ALBERS...GERMANTOWN...LIVELY GROVE...MARISSA...NEW MEMPHIS AND OKAWVILLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES... DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM... EVEN A SMALL ONE...ON FOOT OR IN A VEHICLE. DO NOT UNDERESTIMATE THE POWER OF FLOOD WATERS. ONLY A FEW INCHES OF RAPIDLY FLOWING WATER CAN QUICKLY CARRY AWAY YOUR VEHICLE. TURN AROUND...DONT DROWN TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN ST LOUIS. && LAT...LON 3821 8938 3823 8990 3856 8982 3856 8936 $$ TILLY
1 follow-up statement
000
WGUS73 KLSX 090327
FFSLSX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1027 PM CDT MON JUN 8 2009
ILC027-090333-
/O.CAN.KLSX.FF.W.0033.000000T0000Z-090609T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CLINTON IL-
1027 PM CDT MON JUN 8 2009
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR SOUTHWESTERN
CLINTON COUNTY IS CANCELLED...
EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.
LAT...LON 3821 8938 3823 8990 3841 8986 3844 8972
3844 8971 3842 8971 3842 8970 3846 8962
3848 8952 3846 8948 3849 8946 3850 8943
3849 8939 3851 8936
$$
ILC163-189-090530-
/O.CON.KLSX.FF.W.0033.000000T0000Z-090609T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WASHINGTON IL-ST. CLAIR IL-
1027 PM CDT MON JUN 8 2009
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SOUTHEASTERN ST. CLAIR
AND WESTERN WASHINGTON COUNTIES UNTIL 1230 AM CDT...
AT 1017 PM CDT...WEATHER SERVICE RADAR INDICATES THAT HEAVY RAINFALL
HAS ENDED ACROSS THE WARNED AREA. A CHECK WITH LOCAL LAW
ENFORCEMENT OFFICIALS REPORT THAT THERE IS WATER ON HIGHWAY 4 NEAR
MARISSA AND ON LICKENBROCK SCHOOL ROAD 1 MILE NORTH OF DARMSTADT
ROAD IN ST. CLAIR COUNTY. IN WASHINGTON COUNTY...COUNTY HIGHWAY 1
IS CLOSED NEAR ADDIEVILLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLOODING IS OBSERVED...ACT QUICKLY. DO NOT
ENTER THE WATER.
MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE
ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON
FOOT OR IN A VEHICLE.
REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY SO THAT THEY
MAY TAKE APPROPRIATE ACTION TO CLOSE FLOODED ROADWAYS. THEY WILL
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN ST LOUIS.
&&
LAT...LON 3821 8938 3823 8990 3841 8986 3844 8972
3844 8971 3842 8971 3842 8970 3846 8962
3848 8952 3846 8948 3849 8946 3850 8943
3849 8939 3851 8936
$$
BRITTThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 8, 7:41 AM CDT | Severe Thunderstorm Warning | LSX | Madison | 26 min |
| Jun 8, 7:54 AM CDT | Severe Thunderstorm Warning | LSX | Bond, Fayette, Montgomery | 35 min |
| Jun 8, 8:24 AM CDT | Severe Thunderstorm Warning | LSX | Randolph | 38 min |
| Jun 8, 8:44 AM CDT | Severe Thunderstorm Warning | LSX | Clinton, Washington | 46 min |
| Jun 8, 4:03 PM CDT | Severe Thunderstorm Warning | LSX | Jersey, Madison | 42 min |
| Jun 8, 4:41 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 49 min |
| Jun 8, 5:06 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Saint Clair | 24 min |
| Jun 8, 5:20 PM CDT | Tornado Warning | LSX | Saint Clair | 25 min |
| Jun 8, 5:21 PM CDT | Areal Flood Advisory | LSX | Madison | 5 hr |
| Jun 8, 5:35 PM CDT | Tornado Warning | LSX | Saint Clair | 40 min |
| Jun 8, 5:46 PM CDT | Areal Flood Advisory | LSX | Clinton, Saint Clair, Washington | 4 hr |
| Jun 8, 5:58 PM CDT | Tornado Warning | LSX | Clinton, Saint Clair, Washington | 47 min |
| Jun 8, 6:36 PM CDT | Severe Thunderstorm Warning | LSX | Saint Clair | 39 min |
| Jun 8, 6:44 PM CDT | Severe Thunderstorm Warning | LSX | Washington | 31 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.