Alert archive / Missouri / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 48, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Mar 15, 2012, 3:48 PM CDT for Crawford County, Washington County, Missouri. It was in force for 42 min. 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, 3:48 PM CDT (20:48 UTC)
- Expired
- Mar 15, 2012, 4:30 PM CDT
- In force
- 42 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Crawford County, MO, Washington County, MO
The radar
The St Louis radar (KLSX), 114 km from the middle of the area, began a volume at 20:50 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
Springfield, MO (KSGF), launched 12:00Z, 8.8 hours before the alert went out and 248 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.
576
WUUS53 KLSX 152048
SVRLSX
MOC055-221-152130-
/O.NEW.KLSX.SV.W.0048.120315T2048Z-120315T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
348 PM CDT THU MAR 15 2012
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN CRAWFORD COUNTY IN EAST CENTRAL MISSOURI...
SOUTHWESTERN WASHINGTON COUNTY IN EAST CENTRAL MISSOURI...
* UNTIL 430 PM CDT
* AT 345 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS
STORM WAS LOCATED 10 MILES SOUTHWEST OF CHERRYVILLE...OR 11 MILES
NORTHEAST OF SALEM...AND MOVING NORTHEAST AT 25 MPH.
* LOCATIONS IMPACTED INCLUDE...
CHERRYVILLE...COURTOIS...DILLARD AND DAVISVILLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
&&
LAT...LON 3770 9132 3778 9131 3779 9145 3794 9122
3785 9121 3784 9085 3774 9109 3774 9115
3771 9115 3769 9119 3770 9131
TIME...MOT...LOC 2049Z 243DEG 20KT 3773 9133
WIND...HAIL <50MPH 1.00IN
$$
TRUETT2 follow-up statements
369
WWUS53 KLSX 152109
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
409 PM CDT THU MAR 15 2012
MOC055-221-152130-
/O.CON.KLSX.SV.W.0048.000000T0000Z-120315T2130Z/
CRAWFORD MO-WASHINGTON MO-
409 PM CDT THU MAR 15 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN
WASHINGTON AND SOUTHEASTERN CRAWFORD COUNTIES UNTIL 430 PM CDT...
AT 405 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS
STORM WAS LOCATED 8 MILES WEST OF VIBURNUM...OR 15 MILES EAST OF
SALEM...MOVING NORTHEAST AT 25 MPH.
LOCATIONS IMPACTED INCLUDE...
COURTOIS...DILLARD AND DAVISVILLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
&&
LAT...LON 3770 9132 3778 9131 3785 9121 3784 9085
3774 9109 3774 9115 3771 9115 3769 9119
3770 9131
TIME...MOT...LOC 2109Z 243DEG 20KT 3772 9125
WIND...HAIL <50MPH 1.00IN
$$
TRUETT164
WWUS53 KLSX 152130
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
430 PM CDT THU MAR 15 2012
MOC055-221-152140-
/O.EXP.KLSX.SV.W.0048.000000T0000Z-120315T2130Z/
CRAWFORD MO-WASHINGTON MO-
430 PM CDT THU MAR 15 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN WASHINGTON AND
SOUTHEASTERN CRAWFORD COUNTIES HAS EXPIRED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
HOWEVER...SMALL HAIL AND HEAVY RAIN ARE STILL POSSIBLE WITH
ADDITIONAL THUNDERSTORMS THAT WILL BE MOVING THROUGH THE AREA LATE
THIS AFTERNOON.
LAT...LON 3770 9132 3778 9131 3785 9121 3784 9085
3774 9109 3774 9115 3771 9115 3769 9119
3770 9131
TIME...MOT...LOC 2130Z 243DEG 20KT 3777 9112
$$
TRUETTThe 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, 3:11 PM CDT | Flash Flood Warning | LSX | Crawford, Washington | 3 hr |
| 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, 3:59 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
Severe Thunderstorm Warnings in Missouri, 2012Every severe thunderstorm 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.