Alert archive / Missouri / Flash Flood Warnings in 2012
Flash Flood Warning 1, NWS St. Louis, MO
NWS St. Louis, MO issued this flash flood warning at Mar 15, 2012, 3:11 PM CDT for Crawford County, Washington County, Missouri. It was in force for 3 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
- Mar 15, 2012, 3:11 PM CDT (20:11 UTC)
- Expired
- Mar 15, 2012, 6:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- None
Counties Crawford County, MO, Washington County, MO
The radar
The St Louis radar (KLSX), 83 km from the middle of the area, began a volume at 20:10 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
Springfield, MO (KSGF), launched 12:00Z, 8.2 hours before the alert went out and 268 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
- 1947 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 758 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 130 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
387 WGUS53 KLSX 152011 FFWLSX MOC055-221-152300- /O.NEW.KLSX.FF.W.0001.120315T2011Z-120315T2300Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 311 PM CDT THU MAR 15 2012 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * FLASH FLOOD WARNING FOR... CENTRAL CRAWFORD COUNTY IN EAST CENTRAL MISSOURI... WEST CENTRAL WASHINGTON COUNTY IN EAST CENTRAL MISSOURI... * UNTIL 600 PM CDT * AT 310 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. * RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... ANTHONIES MILL. THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES... MERAMEC RIVER...LICK CREEK...DRY FORK...COURTOIS CREEK...WHITTENBURG CREEK...LITTLE BOURBEUSE RIVER...HINCH BRANCH...SHOAL CREEK...CROOKED CREEK...LITTLE COURTOIS CREEK...INDIAN CREEK...NORTHCUT BRANCH... BRUSHY FORK...BRAZIL CREEK...DOSS BRANCH...FLAGG BRANCH...BILLYS BRANCH...MINERAL FORK AND DRY CREEK. 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 3809 9100 3796 9098 3796 9133 3809 9133 $$ MILLER
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 14, 7:00 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson | 45 min |
| Mar 15, 1:56 PM CDT | Severe Thunderstorm Warning | LSX | Crawford, Washington | 49 min |
| Mar 15, 2:22 PM CDT | Severe Thunderstorm Warning | LSX | Crawford | 19 min |
| Mar 15, 3:19 PM CDT | Severe Thunderstorm Warning | LSX | Washington | 26 min |
| Mar 15, 3:23 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Saint Charles, Warren | 37 min |
| Mar 15, 3:27 PM CDT | Severe Thunderstorm Warning | LSX | Gasconade, Osage | 48 min |
| Mar 15, 3:47 PM CDT | Severe Thunderstorm Warning | LSX | Crawford, Washington | 19 min |
| Mar 15, 3:48 PM CDT | Severe Thunderstorm Warning | LSX | Crawford, Washington | 42 min |
| Mar 15, 3:59 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Warren | 46 min |
| Mar 15, 4:12 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 33 min |
| Mar 15, 4:26 PM CDT | Flash Flood Warning | LSX | Crawford, Washington | 3 hr |
| Mar 15, 4:46 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles | 29 min |
| Mar 15, 4:50 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 40 min |
| Mar 15, 5:20 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Montgomery, Warren | 26 min |
| Mar 15, 6:16 PM CDT | Flash Flood Warning | LSX | Crawford, Washington | 4 hr |
Nearby
Flash Flood Warnings in Missouri, 2012Every flash flood warning in 2012
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.