Alert archive / Missouri / Flash Flood Warnings in 2015
Flash Flood Warning 24, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jun 21, 2015, 4:01 AM CDT for Adams County, Illinois; Knox County, Lewis County, Missouri. 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 21, 2015, 4:01 AM CDT (09:01 UTC)
- Expired
- Jun 21, 2015, 10:00 AM CDT
- In force
- 6 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Adams County, IL, Knox County, MO, Lewis County, MO
The radar
The Quad Cities radar (KDVN), 188 km from the middle of the area, began a volume at 09:02 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 21, 7:50 AM CDT | FLASH FLOOD | Ewing, MO | A NUMBER OF ROADS ARE STILL CLOSED DUE TO FLOODING...INCLUDING HIGHWAY 156 NEAR GRASSY CREEK...WEST OF EWING...HIGHWAY C EAST OF EWING AND HIGHWAY D SOUTH OF LA BELLE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 9.0 hours before the alert went out and 193 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
- 759 J/kg
- Mixed-layer CIN
- -172 J/kg
- Mixed-layer LCL
- 1248 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 176 m²/s²
- 0-3 km storm-relative helicity
- 246 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.8
The text
As transmitted, in the capitals the NWS used until 2016.
930
WGUS53 KLSX 210901
FFWLSX
ILC001-MOC103-111-211500-
/O.NEW.KLSX.FF.W.0024.150621T0901Z-150621T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
401 AM CDT SUN JUN 21 2015
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
KNOX COUNTY IN NORTHEAST MISSOURI...
LEWIS COUNTY IN NORTHEAST MISSOURI...
NORTHWESTERN ADAMS COUNTY IN WEST CENTRAL ILLINOIS...
* UNTIL 1000 AM CDT
* AT 359 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLASH
FLOODING CONTINUES ACROSS THE WARNED AREA. HIGHWAY 156 IN LEWIS
COUNTY REMAINS CLOSED DUE TO FLOODING. EVEN THOUGH THE RAIN HAS
ENDED FOR THE WARNED AREA...FLASH FLOODING WILL PERSIST THIS
MORNING AS EXCESSIVE RUNOFF FROM THE HEAVY RAINFALL CONTINUES
TO CAUSE FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND
SECONDARY ROADS.
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...CANTON...
EDINA...COLONY...EWING...KNOX CITY...LA BELLE...LA GRANGE...
LEWISTOWN...MAYWOOD...PLEVNA AND STEFFENVILLE.
THIS WARNING INCLUDES WAKONDA STATE PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
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.
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 4030 9195 4026 9194 4025 9150 4020 9150
4020 9133 3995 9133 3996 9234 4030 9233
$$
BYRD1 follow-up statement
312
WGUS73 KLSX 211300
FFSLSX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
800 AM CDT SUN JUN 21 2015
ILC001-MOC103-111-211500-
/O.CON.KLSX.FF.W.0024.000000T0000Z-150621T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ADAMS IL-KNOX MO-LEWIS MO-
800 AM CDT SUN JUN 21 2015
...FLASH FLOOD WARNING REMAINS IN EFFECT FOR LEWIS...KNOX AND
NORTHWESTERN ADAMS COUNTIES UNTIL 1000 AM CDT...
AT 756 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED THAT FLASH
FLOODING WAS OCCURRING IN LEWIS COUNTY. EVEN THOUGH THE RAIN HAS
ENDED FOR THE WARNED AREA...FLASH FLOODING WILL PERSIST THIS
MORNING AS EXCESSIVE RUNOFF FROM THE HEAVY RAINFALL CONTINUES TO
CAUSE FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND
SECONDARY ROADS. A NUMBER OF ROADS WERE FLOODED...INCLUDING HIGHWAY
156 NEAR GRASSY CREEK WEST OF EWING...HIGHWAY C EAST OF EWING... AND
HIGHWAY D SOUTH OF LA BELLE.
SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING
INCLUDE...CANTON...EDINA...COLONY...EWING...KNOX CITY...LA
BELLE...LA GRANGE...LEWISTOWN...MAYWOOD...PLEVNA AND STEFFENVILLE.
THIS WARNING INCLUDES WAKONDA STATE PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM THIS STORM 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 ALSO SUBJECT TO FLOODING.
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.
A FLASH FLOOD WARNING MEANS THAT FLASH 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 4030 9195 4026 9194 4025 9150 4020 9150
4020 9133 3995 9133 3996 9234 4030 9233
$$
BYRDThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 8:23 PM CDT | Severe Thunderstorm Warning | LSX | Adams | 67 min |
| Jun 20, 8:55 PM CDT | Severe Thunderstorm Warning | LSX | Adams, Brown | 65 min |
| Jun 20, 10:08 PM CDT | Flash Flood Warning | LSX | Adams | 6 hr |
| Jun 21, 12:52 AM CDT | River Flood Warning | LSX | Adams | 11 days |
| Jun 21, 1:40 AM CDT | Areal Flood Advisory | LSX | Adams, Pike | 6 hr |
| Jun 21, 1:48 AM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene, Jersey | 42 min |
| Jun 21, 3:46 AM CDT | Heat Advisory | LSX | Madison, Monroe, Saint Clair | 39 hr |
| Jun 21, 3:54 AM CDT | Flash Flood Warning | LSX | Calhoun, Pike | 6 hr |
| Jun 21, 9:57 AM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Jersey, Madison | 31 min |
| Jun 21, 10:08 AM CDT | Flash Flood Warning | LSX | Calhoun, Pike | 6 hr |
| Jun 21, 3:40 PM CDT | Areal Flood Warning | LSX | Calhoun, Pike | 12 hr |
| Jun 20, 11:47 PM CDT | River Flood Warning | LSX | Lewis | 10 days |
| Jun 20, 11:47 PM CDT | River Flood Warning | LSX | Lewis | 60 hr |
| Jun 21, 2:31 AM CDT | River Flood Warning | LSX | Marion | 72 hr |
| Jun 21, 4:45 AM CDT | Flash Flood Warning | LSX | Audrain, Montgomery, Pike, Ralls | 6 hr |
| Jun 21, 5:39 AM CDT | River Flood Warning | LSX | Lincoln | 70 hr |
| Jun 21, 9:48 AM CDT | Severe Thunderstorm Warning | LSX | Audrain, Callaway, Montgomery | 42 min |
| Jun 21, 10:56 AM CDT | Severe Thunderstorm Warning | LSX | Audrain, Montgomery, Pike | 49 min |
Nearby
Flash Flood Warnings in Missouri, 2015Flash Flood Warnings in Illinois, 2015Every flash flood warning in 2015
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.