Alert archive / Missouri / Flash Flood Warnings in 2010
Flash Flood Warning 49, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Jul 12, 2010, 8:50 PM CDT for Madison County, Missouri. It was in force for 5 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 12, 2010, 8:50 PM CDT (01:50 UTC)
- Expired
- Jul 13, 2010, 2:00 AM CDT
- In force
- 5 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
County Madison County, MO
The radar
The St Louis radar (KLSX), 135 km from the middle of the area, began a volume at 01:50 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
Little Rock, AR (KLZK), launched 00:00Z, 1.8 hours before the alert went out and 300 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
- 252 J/kg
- Mixed-layer CIN
- -119 J/kg
- Mixed-layer LCL
- 1168 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 95 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
459
WGUS53 KLSX 130150
FFWLSX
MOC123-130700-
/O.NEW.KLSX.FF.W.0049.100713T0150Z-100713T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
850 PM CDT MON JUL 12 2010
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
MADISON COUNTY IN SOUTHEAST MISSOURI...
* UNTIL 200 AM CDT
* AT 846 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
WARNED AREA. RADAR ESTIMATES OF UP TO 3 INCHES OF RAIN HAVE BEEN
RECORDED ACROSS PORTIONS OF MADISON COUNTY IN MISSOURI.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
FREDERICKTOWN...JUNCTION CITY AND MARQUAND.
TRAINED SPOTTERS REPORTED A FOOT OF WATER OVER COUNTY ROAD 510
APPROXIMATELY 2 MILES NNW OF FREDERICKTOWN.
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.
&&
LAT...LON 3739 9049 3764 9048 3764 9015 3764 9014
3739 9015
$$
KANOFSKY1 follow-up statement
485
WGUS73 KLSX 130654
FFSLSX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
154 AM CDT TUE JUL 13 2010
MOC123-130708-
/O.EXP.KLSX.FF.W.0049.000000T0000Z-100713T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MADISON MO-
154 AM CDT TUE JUL 13 2010
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR MADISON COUNTY WILL
BE ALLOWED TO EXPIRE AT 200 AM CDT...
EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.
LAT...LON 3739 9049 3764 9048 3764 9015 3764 9014
3739 9015
$$
GKSThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 7:30 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Gasconade, Montgomery, Warren | 30 min |
| Jul 12, 9:10 PM CDT | Flash Flood Warning | LSX | Moniteau | 6 hr |
| Jul 12, 9:48 PM CDT | Flash Flood Warning | LSX | Saint Charles | 5 hr |
| Jul 12, 10:18 PM CDT | Flash Flood Warning | LSX | Callaway | 5 hr |
| Jul 13, 12:04 AM CDT | Flash Flood Warning | LSX | Audrain, Monroe, Ralls | 6 hr |
| Jul 13, 6:11 AM CDT | River Flood Warning | LSX | Saint Charles | 7 hr |
| Jul 13, 2:35 PM CDT | Heat Advisory | LSX | Audrain, Boone, Callaway, Cole, Crawford, Franklin and 23 more | 52 hr |
Nearby
Flash Flood Warnings in Missouri, 2010Every flash flood warning in 2010
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.