Alert archive / Missouri / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 60, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Mar 15, 2012, 9:01 PM CDT for Crawford County, Washington County, Missouri. It was in force for 44 min. 2 reports 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
- Mar 15, 2012, 9:01 PM CDT (02:01 UTC)
- Expired
- Mar 15, 2012, 9:45 PM CDT
- In force
- 44 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), 87 km from the middle of the area, began a volume at 02:02 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 |
|---|---|---|---|
| Mar 15, 9:16 PM CDT | HAIL 0.88 | 15 S Sullivan, MO | |
| Mar 15, 9:28 PM CDT | HAIL 1 | 15 S Sullivan, MO | HAIL SIZE RANGED FROM NICKLE TO QUARTER. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 2.0 hours before the alert went out and 271 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
- 1409 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 1284 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
366 WUUS53 KLSX 160201 SVRLSX MOC055-221-160245- /O.NEW.KLSX.SV.W.0060.120316T0201Z-120316T0245Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 901 PM CDT THU MAR 15 2012 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EAST CENTRAL CRAWFORD COUNTY IN EAST CENTRAL MISSOURI... WEST CENTRAL WASHINGTON COUNTY IN EAST CENTRAL MISSOURI... * UNTIL 945 PM CDT * AT 857 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED 6 MILES NORTHEAST OF CHERRYVILLE...OR 8 MILES EAST OF STEELVILLE...AND MOVING EAST AT 25 MPH. * LOCATIONS IMPACTED INCLUDE... SHIRLEY AND LATTY. 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 3806 9092 3787 9085 3785 9124 3799 9129 TIME...MOT...LOC 0202Z 258DEG 21KT 3794 9119 WIND...HAIL <50MPH 1.00IN $$ KANOFSKY
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 15, 7:20 PM CDT | Flash Flood Warning | LSX | Crawford | 3 hr |
| Mar 15, 8:10 PM CDT | Severe Thunderstorm Warning | LSX | Madison | 29 min |
| Mar 15, 8:36 PM CDT | Flash Flood Warning | LSX | Madison | 6 hr |
| Mar 15, 8:56 PM CDT | Flash Flood Warning | LSX | Reynolds | 6 hr |
| Mar 15, 9:07 PM CDT | Severe Thunderstorm Warning | LSX | Crawford, Washington | 38 min |
| Mar 15, 9:16 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Cole, Gasconade, Montgomery, Osage | 44 min |
| Mar 15, 9:39 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles | 35 min |
| Mar 15, 9:44 PM CDT | Severe Thunderstorm Warning | LSX | Crawford, Washington | 35 min |
| Mar 15, 9:48 PM CDT | Severe Thunderstorm Warning | LSX | Warren | 42 min |
| Mar 15, 9:51 PM CDT | Severe Thunderstorm Warning | LSX | Lincoln | 39 min |
| Mar 15, 9:58 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Cole, Crawford, Franklin, Gasconade, Osage | 47 min |
| Mar 15, 10:04 PM CDT | Flash Flood Warning | LSX | Crawford, Washington | 6 hr |
| Mar 15, 10:23 PM CDT | Flash Flood Warning | LSX | Cole, Osage | 6 hr |
| Mar 15, 10:51 PM CDT | Flash Flood Warning | LSX | Gasconade | 6 hr |
| Mar 15, 11:33 PM CDT | Severe Thunderstorm Warning | LSX | Osage | 42 min |
| Mar 16, 12:42 AM CDT | Severe Thunderstorm Warning | LSX | Boone | 20 min |
| Mar 16, 12:43 AM CDT | Severe Thunderstorm Warning | LSX | Callaway | 47 min |
| Mar 16, 1:00 AM CDT | Severe Thunderstorm Warning | LSX | Gasconade | 32 min |
| Mar 16, 4:03 AM CDT | Areal Flood Warning | LSX | Osage | 6 hr |
| Mar 16, 4:08 AM CDT | Areal Flood Warning | LSX | Crawford | 6 hr |
| Mar 16, 3:58 PM CDT | Areal Flood Warning | LSX | Madison | 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.