Alert archive / Illinois / Flash Flood Warnings in 2011
Flash Flood Warning 38, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jun 10, 2011, 6:16 PM CDT for Marion County, Illinois. It was in force for 10 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 10, 2011, 6:16 PM CDT (23:16 UTC)
- Expired
- Jun 11, 2011, 3:49 AM CDT
- In force
- 10 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
County Marion County, IL
The radar
The Evansville,IN radar (KVWX), 110 km from the middle of the area, began a volume at 23:19 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 12:00Z, 11.3 hours before the alert went out and 159 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
- 581 J/kg
- Mixed-layer CIN
- -228 J/kg
- Mixed-layer LCL
- 670 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 101 m²/s²
- 0-3 km storm-relative helicity
- 130 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.8
The text
As transmitted, in the capitals the NWS used until 2016.
865
WGUS53 KLSX 102316
FFWLSX
ILC121-110500-
/O.NEW.KLSX.FF.W.0038.110610T2316Z-110611T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
616 PM CDT FRI JUN 10 2011
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
MARION COUNTY IN SOUTH CENTRAL ILLINOIS...
* UNTIL MIDNIGHT CDT
* AT 613 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
WARNED AREA. SEVERAL WAVES OF THUNDERSTORMS HAVE AFFECTED THE
MARION COUNTY SINCE LATE THIS AFTERNOON...ESPECIALLY AREAS ALONG
AND NORTH OF HIGHWAY 50.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
SALEM...FAIRMAN...KINMUNDY...ODIN...OMEGA...PATOKA...SANDOVAL AND
STEPHEN FORBES STATE PARK.
RADAR INDICATES LOCALIZED RAINFALLS OF 3 TO 4 INCHES MAY HAVE
OCCURRED BETWEEN PATOKA AND STEPHEN FORBES STATE PARK SINCE 230 PM.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE
YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME
KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR
CREEKS.
&&
LAT...LON 3858 8870 3857 8914 3882 8913 3883 8886
3882 8874 3883 8872 3882 8870
$$
TRUETT3 follow-up statements
293
WGUS73 KLSX 110327
FFSLSX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1027 PM CDT FRI JUN 10 2011
ILC121-110500-
/O.CON.KLSX.FF.W.0038.000000T0000Z-110611T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MARION IL-
1027 PM CDT FRI JUN 10 2011
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR MARION COUNTY UNTIL
MIDNIGHT CDT...
THE HEAVIEST RAINFALL EXITED MARION COUNTY BETWEEN 730 AND 8
PM....AND THIS HAS LESSENED THE FLASH FLOOD THREAT. HOWEVER...EVEN
THOUGH THE RAIN HAS ENDED RUNOFF FROM THE EARLY EVENING DOWNPOURS
MAY STILL BE PRODUCING FLOODING PROBLEMS...ESPECIALLY IN NORTHWEST
PARTS OF THE COUNTY WHERE RAINS OF 3 TO 5 INCHES MAY HAVE
OCCURRED.
SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...SALEM...
FAIRMAN...KINMUNDY...ODIN...OMEGA...PATOKA...SANDOVAL AND STEPHEN
FORBES STATE PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY SO THAT THEY
MAY TAKE APPROPRIATE ACTION TO CLOSE FLOODED ROADWAYS. THEY WILL
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN ST LOUIS.
&&
LAT...LON 3858 8870 3857 8914 3882 8913 3883 8886
3882 8874 3883 8872 3882 8870
$$
TRUETT273
WGUS53 KLSX 110444
FFWLSX
ILC121-111000-
/O.EXT.KLSX.FF.W.0038.000000T0000Z-110611T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1144 PM CDT FRI JUN 10 2011
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS EXTENDED THE
* FLASH FLOOD WARNING FOR...
MARION COUNTY IN SOUTH CENTRAL ILLINOIS...
* UNTIL 500 AM CDT
* AT 1140 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR
INDICATED ANOTHER ROUND OF SLOW MOVING THUNDERSTORMS WITH VERY
HEAVY RAINFALL ACROSS THE WARNED AREA. UP TO 5 INCHES OF RAIN HAS
FALLEN OVER NORTHERN PORTIONS OF MARION COUNTY SINCE 6 PM FRIDAY
EVENING. AN ADDITIONAL INCH OR TWO OF RAINFALL IS POSSIBLE THROUGH
1 AM.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...SALEM...
FAIRMAN...KINMUNDY...ODIN...OMEGA...PATOKA...SANDOVAL AND STEPHEN
FORBES STATE PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO
NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO
ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN
WATER BEGINS RISING.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
&&
LAT...LON 3858 8870 3857 8914 3882 8913 3883 8886
3882 8874 3883 8872 3882 8870
$$
BYRD812
WGUS73 KLSX 110849
FFSLSX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
349 AM CDT SAT JUN 11 2011
ILC121-110904-
/O.CAN.KLSX.FF.W.0038.000000T0000Z-110611T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MARION IL-
349 AM CDT SAT JUN 11 2011
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR MARION COUNTY IS
CANCELLED...
EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.
LAT...LON 3858 8870 3857 8914 3882 8913 3883 8886
3882 8874 3883 8872 3882 8870
$$
CVKINGThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 12:05 AM CDT | Flash Flood Warning | LSX | Adams | 6 hr |
| Jun 10, 11:38 AM CDT | River Flood Warning | LSX | Adams | 13 days |
| Jun 10, 11:38 AM CDT | River Flood Warning | LSX | Adams | 14 days |
| Jun 10, 11:38 AM CDT | River Flood Warning | LSX | Pike | 14 days |
| Jun 10, 3:38 PM CDT | Areal Flood Advisory | LSX | Marion | 4 hr |
| Jun 10, 5:10 PM CDT | Severe Thunderstorm Warning | LSX | Fayette, Marion | 65 min |
| Jun 10, 5:30 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene, Pike | 45 min |
| Jun 10, 5:42 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown, Pike | 48 min |
| Jun 10, 5:49 PM CDT | Tornado Warning | LSX | Adams | 41 min |
| Jun 10, 6:27 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown, Pike | 48 min |
| Jun 10, 6:30 PM CDT | Tornado Warning | LSX | Adams | 30 min |
| Jun 10, 6:43 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Fayette, Marion | 62 min |
Nearby
Flash Flood Warnings in Illinois, 2011Every flash flood warning in 2011
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.