Alert archive / Illinois / Flash Flood Warnings in 2011
Flash Flood Warning 49, NWS Lincoln, IL
NWS Lincoln, IL issued this flash flood warning at Jun 25, 2011, 11:40 AM CDT for Scott County, Illinois. It was in force for 6 hr. 1 report 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 25, 2011, 11:40 AM CDT (16:40 UTC)
- Expired
- Jun 25, 2011, 5:30 PM CDT
- In force
- 6 hr
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Flood severity
- None
County Scott County, IL
The radar
The St Louis radar (KLSX), 109 km from the middle of the area, began a volume at 16:42 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 25, 2:00 PM CDT | FLASH FLOOD | 1 Nw Oxville, IL | WATER OVER ROUTE 100 AT MAUVAISE TERRE CREEK AND FLOWING. IDOT INVESTIGATING. |
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, 4.7 hours before the alert went out and 169 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
- 1082 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- -39 m²/s²
- 0-3 km storm-relative helicity
- 95 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
077
WGUS53 KILX 251640
FFWILX
ILC171-252230-
/O.NEW.KILX.FF.W.0049.110625T1640Z-110625T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
1140 AM CDT SAT JUN 25 2011
THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SCOTT COUNTY IN WEST CENTRAL ILLINOIS...
* UNTIL 530 PM CDT
* AT 1138 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
WARNED AREA. RADAR IS ESTIMATING BETWEEN ONE TO THREE INCHES
ALREADY IN THE WESTERN AND CENTRAL PORTIONS OF THE COUNTY.
ANOTHER ROUND OF THUNDERSTORMS IS APPROACHING THE AREA QUICKLY.
POSSIBLE STORM FALL TOTALS OF OVER 4 INCHES EXPECTED IN ISOLATED
AREAS.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
WINCHESTER...ALSEY...BLUFFS...EXETER...MANCHESTER AND NAPLES.
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. MOST FLOOD RELATED DEATHS OCCUR
IN VEHICLES. 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.
&&
LAT...LON 3978 9061 3979 9049 3975 9048 3975 9037
3967 9038 3966 9034 3963 9034 3963 9030
3952 9030 3952 9059 3954 9058 3964 9062
3970 9065
$$
HJS2 follow-up statements
235
WGUS73 KILX 251906
FFSILX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
206 PM CDT SAT JUN 25 2011
ILC171-252230-
/O.CON.KILX.FF.W.0049.000000T0000Z-110625T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SCOTT IL-
206 PM CDT SAT JUN 25 2011
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR SCOTT COUNTY UNTIL 530
PM CDT...
AT 205 PM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. RADAR
HAS ESTIMATED OVER 4 INCHES ACROSS THE AREA AND WATER HAS BEEN
REPORTED OVER ROUTE 100 AT MAUVAISE TERRE CREEK NEAR OXVILLE.
RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
WINCHESTER...ALSEY...BLUFFS...EXETER...MANCHESTER AND NAPLES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
MOST FLOOD RELATED DEATHS OCCUR IN VEHICLES. DO NOT ATTEMPT TO CROSS
BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE ROADWAY.
NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT OR
IN A VEHICLE.
&&
LAT...LON 3978 9061 3979 9049 3975 9048 3975 9037
3967 9038 3966 9034 3963 9034 3963 9030
3952 9030 3952 9059 3954 9058 3964 9062
3970 9065
$$
HJS520
WGUS73 KILX 252228
FFSILX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
528 PM CDT SAT JUN 25 2011
ILC171-252240-
/O.EXP.KILX.FF.W.0049.000000T0000Z-110625T2230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SCOTT IL-
528 PM CDT SAT JUN 25 2011
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR SCOTT COUNTY WILL
BE ALLOWED TO EXPIRE AT 530 PM CDT...
EXCESS RUNOFF FROM HEAVY RAIN THAT OCCURRED ACROSS THE AREA THIS
MORNING INTO EARLY THIS AFTERNOON HAS ENDED OVER THE WARNED AREA FOR
THE TIME BEING. STREAMS AND CREEKS IN THE WARNED AREA HAVE RECEDED
OR WERE BEGINNING TO RECEDE. HOWEVER...ADDITIONAL SHOWERS AND
THUNDERSTORMS WILL BE POSSIBLE TONIGHT. A FLOOD ADVISORY WILL
REPLACE THE FLASH FLOOD WARNING FOR ALL OF SCOTT COUNTY FOR THIS
EVENING.
IF FLOODING HAS BEEN OBSERVED...PLEASE REPORT IT TO YOUR LOCAL LAW
ENFORCEMENT AGENCY.
LAT...LON 3978 9061 3979 9049 3975 9048 3975 9037
3967 9038 3966 9034 3963 9034 3963 9030
3952 9030 3952 9059 3954 9058 3964 9062
3970 9065
$$
SMITHThe office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 5:34 PM CDT | Areal Flood Advisory | ILX | Scott | 6 hr |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.