Alert archive / Missouri / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 73, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Mar 17, 2012, 5:51 PM CDT for Crawford County, Missouri. It was in force for 25 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 17, 2012, 5:51 PM CDT (22:51 UTC)
- Expired
- Mar 17, 2012, 6:16 PM CDT
- In force
- 25 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
County Crawford County, MO
The radar
The St Louis radar (KLSX), 87 km from the middle of the area, began a volume at 22:52 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, 10.9 hours before the alert went out and 256 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
- 1549 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 724 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 83 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
658
WUUS53 KLSX 172251
SVRLSX
MOC055-172330-
/O.NEW.KLSX.SV.W.0073.120317T2251Z-120317T2330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
551 PM CDT SAT MAR 17 2012
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN CRAWFORD COUNTY IN EAST CENTRAL MISSOURI...
* UNTIL 630 PM CDT
* AT 547 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS
STORM WAS LOCATED NEAR ST. JAMES...OR 10 MILES WEST OF CUBA...AND
MOVING EAST AT 30 MPH.
* LOCATIONS IMPACTED INCLUDE...
CUBA...BOURBON...LEASBURG AND ST. CLOUD.
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.
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN ST LOUIS.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
&&
LAT...LON 3802 9153 3814 9153 3821 9115 3820 9110
3801 9110
TIME...MOT...LOC 2251Z 257DEG 25KT 3807 9155
WIND...HAIL <50MPH 1.00IN
$$
TES1 follow-up statement
376
WWUS53 KLSX 172316
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
616 PM CDT SAT MAR 17 2012
MOC055-172326-
/O.CAN.KLSX.SV.W.0073.000000T0000Z-120317T2330Z/
CRAWFORD MO-
616 PM CDT SAT MAR 17 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN CRAWFORD COUNTY IS
CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
HOWEVER...HEAVY RAINFALL WILL REMAIN A THREAT WITH THIS STORM.
LAT...LON 3802 9153 3814 9153 3821 9115 3820 9110
3801 9110
TIME...MOT...LOC 2316Z 257DEG 25KT 3811 9133
$$
TESThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 2:22 PM CDT | Flash Flood Warning | LSX | Osage | 4 hr |
| Mar 17, 3:38 PM CDT | Flash Flood Watch | LSX | Crawford, Franklin, Gasconade, Jefferson, Osage, Saint Charles and 6 more | 6 hr |
| Mar 17, 3:59 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson | 46 min |
| Mar 17, 4:54 PM CDT | Areal Flood Advisory | LSX | Saint Louis, City of Saint Louis | 4 hr |
| Mar 17, 5:13 PM CDT | Areal Flood Advisory | LSX | Saint Charles | 4 hr |
| Mar 17, 6:13 PM CDT | Flash Flood Warning | LSX | Crawford | 6 hr |
| Mar 17, 6:23 PM CDT | Flash Flood Warning | LSX | Osage | 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.