Alert archive / Illinois / Flash Flood Warnings in 2011
Flash Flood Warning 71, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jul 7, 2011, 7:14 PM CDT for 5 counties in Illinois. It was in force for 6 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
- Jul 7, 2011, 7:14 PM CDT (00:14 UTC)
- Expired
- Jul 8, 2011, 1:00 AM CDT
- In force
- 6 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Bond County, IL, Fayette County, IL, Macoupin County, IL, Madison County, IL, Montgomery County, IL
The radar
The Lincoln radar (KILX), 113 km from the middle of the area, began a volume at 00:18 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, 0.2 hours before the alert went out and 125 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
- 143 J/kg
- Mixed-layer CIN
- -61 J/kg
- Mixed-layer LCL
- 1134 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.7
The text
As transmitted, in the capitals the NWS used until 2016.
727
WGUS53 KLSX 080014
FFWLSX
ILC005-051-117-119-135-080600-
/O.NEW.KLSX.FF.W.0071.110708T0014Z-110708T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
714 PM CDT THU JUL 7 2011
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
FAYETTE COUNTY IN SOUTH CENTRAL ILLINOIS...
MACOUPIN COUNTY IN SOUTHWEST ILLINOIS...
MONTGOMERY COUNTY IN SOUTH CENTRAL ILLINOIS...
NORTHEASTERN MADISON COUNTY IN SOUTHWEST ILLINOIS...
NORTHERN BOND COUNTY IN SOUTH CENTRAL ILLINOIS...
* UNTIL 100 AM CDT
* AT 711 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
WARNED AREA. THE RADAR WAS ESTIMATING RAINFALL AMOUNTS AS HIGH AS
2 TO 3 INCHES IN ABOUT ONE HOUR FROM NEAR HETTICK SOUTHEAST TO
NEAR COFFEEN.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
CARLINVILLE...GILLESPIE...HILLSBORO...LITCHFIELD...NOKOMIS...
STAUNTON...VANDALIA...VIRDEN...BENLD...BROWNSTOWN...BUNKER HILL...
COFFEEN...FARMERSVILLE...GIRARD...LIVINGSTON...MOUNT OLIVE...
MULBERRY GROVE...PALMYRA...RAMSEY...RAYMOND...RENO...SORENTO...ST.
ELMO...TAYLOR SPRINGS...VAN BURENSBURG...WHITE OAK...WILSONVILLE...
WITT...WOBURN AND WRIGHTS CORNER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
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 3889 8922 3898 8999 3952 9015 3951 8953
3936 8952 3936 8915 3922 8913 3922 8881
3892 8880 3892 8870 3889 8869
$$
GKS2 follow-up statements
203
WGUS73 KLSX 080353
FFSLSX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1053 PM CDT THU JUL 7 2011
ILC005-051-117-119-135-080600-
/O.CON.KLSX.FF.W.0071.000000T0000Z-110708T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MACOUPIN IL-MADISON IL-MONTGOMERY IL-FAYETTE IL-BOND IL-
1053 PM CDT THU JUL 7 2011
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR NORTHERN BOND...
FAYETTE...MONTGOMERY...NORTHEASTERN MADISON AND MACOUPIN COUNTIES
UNTIL 100 AM CDT...
RAINFALL ESTIMATES FROM RADAR INDICATE RAINS OF ONE TO THREE
INCHES...WITH LOCALLY HIGHER AMOUNTS...OCCURRED OVER PARTS OF
SOUTHWEST ILLINOIS LATE THIS AFTERNOON AND EARLY THIS EVENING.
ALTHOUGH THE RAIN HAS NOW COME TO AN END...RUNOFF FROM THE DOWNPOURS
CONTINUE TO POSE A FLASH FLOOD THREAT...ESPECIALLY IN POORLY DRAINED
AREAS AND LOW LYING SPOTS NEAR CREEKS AND STREAM. FOR
INSTANCE...THE AUTOMATED STREAM GAGE ON SHOAL CREEK NEAR COFFEEN
INDICATES THE CREEK WAS BELOW FLOOD STAGE...BUT RISING
RAPIDLY...JUST AFTER 10 PM.
RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
CARLINVILLE...GILLESPIE...HILLSBORO...LITCHFIELD...NOKOMIS...
STAUNTON...VANDALIA...VIRDEN...BENLD...BROWNSTOWN...BUNKER HILL...
COFFEEN...FARMERSVILLE...GIRARD...LIVINGSTON...MOUNT OLIVE...MULBERRY
GROVE...PALMYRA...RAMSEY...RAYMOND...RENO...SORENTO...ST. ELMO...
TAYLOR SPRINGS...VAN BURENSBURG...WHITE OAK...WILSONVILLE...WITT...
WOBURN AND WRIGHTS CORNER.
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. TURN AROUND AND MOVE UP TO HIGHER GROUND. 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 3889 8922 3898 8999 3952 9015 3951 8953
3936 8952 3936 8915 3922 8913 3922 8881
3892 8880 3892 8870 3889 8869
$$
TRUETT100
WGUS73 KLSX 080551
FFSLSX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1251 AM CDT FRI JUL 8 2011
ILC005-051-117-119-135-080606-
/O.EXP.KLSX.FF.W.0071.000000T0000Z-110708T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MACOUPIN IL-MADISON IL-MONTGOMERY IL-FAYETTE IL-BOND IL-
1251 AM CDT FRI JUL 8 2011
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR NORTHERN BOND...
FAYETTE...MONTGOMERY...NORTHEASTERN MADISON AND MACOUPIN COUNTIES HAS
BEEN ALLOWED TO EXPIRE...
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 3889 8922 3898 8999 3952 9015 3951 8953
3936 8952 3936 8915 3922 8913 3922 8881
3892 8880 3892 8870 3889 8869
$$
BRITTThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 7:07 PM CDT | Tornado Warning | LSX | Monroe, Randolph | 23 min |
| Jul 7, 7:48 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 42 min |
| Jul 7, 7:51 PM CDT | Flash Flood Warning | LSX | Clinton, Madison, Monroe, Randolph, Saint Clair, Washington | 6 hr |
| Jul 7, 11:30 PM CDT | Areal Flood Warning | LSX | Fayette, Marion | 10 hr |
| Jul 8, 12:03 AM CDT | Areal Flood Warning | LSX | Monroe | 9 hr |
| Jul 8, 10:19 AM CDT | River Flood Warning | LSX | Fayette | 10 hr |
| Jul 8, 3:17 PM CDT | Heat Advisory | LSX | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more | 4 days |
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.