Alert archive / Missouri / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 67, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Mar 15, 2012, 9:58 PM CDT for 6 counties in Missouri. It was in force for 47 min. 4 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, 9:58 PM CDT (02:58 UTC)
- Expired
- Mar 15, 2012, 10:45 PM CDT
- In force
- 47 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Callaway County, MO, Cole County, MO, Crawford County, MO, Franklin County, MO, Gasconade County, MO, Osage County, MO
The radar
The St Louis radar (KLSX), 107 km from the middle of the area, began a volume at 03:01 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, 10:15 PM CDT | HAIL 0.88 | Owensville, MO | |
| Mar 15, 10:25 PM CDT | HAIL 0.7 | 5 Se Linn, MO | |
| Mar 15, 10:41 PM CDT | HAIL 0.7 | 1 W Jefferson City, MO | |
| Mar 15, 10:54 PM CDT | HAIL 0.25 | 2 S Jefferson City, MO | LARGE AMOUNT OF PEA SIZE HAIL FALLING SOUTH OF JEFFERSON CITY |
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, 3.0 hours before the alert went out and 242 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.
650
WUUS53 KLSX 160258
SVRLSX
MOC027-051-055-071-073-151-160345-
/O.NEW.KLSX.SV.W.0067.120316T0258Z-120316T0345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
958 PM CDT THU MAR 15 2012
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN CALLAWAY COUNTY IN CENTRAL MISSOURI...
EASTERN COLE COUNTY IN CENTRAL MISSOURI...
NORTHWESTERN CRAWFORD COUNTY IN EAST CENTRAL MISSOURI...
WESTERN FRANKLIN COUNTY IN EAST CENTRAL MISSOURI...
GASCONADE COUNTY IN EAST CENTRAL MISSOURI...
OSAGE COUNTY IN CENTRAL MISSOURI...
* UNTIL 1045 PM CDT
* AT 956 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS
STORM WAS LOCATED NEAR LINN...AND MOVING EAST AT 20 MPH.
* LOCATIONS IMPACTED INCLUDE...
OWENSVILLE...MOUNT STERLING...BLAND...DRAKE...ROSEBUD...GERALD...
MORRISON...GASCONADE...BAY...SWISS...CANAAN...OAK HILL...JAPAN AND
BERGER.
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 3866 9228 3866 9227 3865 9226 3864 9222
3872 9221 3870 9163 3867 9156 3870 9149
3869 9130 3820 9123 3819 9140 3813 9152
3815 9154 3815 9165 3828 9165 3829 9220
3833 9220 3832 9226 3833 9234
TIME...MOT...LOC 0258Z 290DEG 18KT 3849 9180
WIND...HAIL <50MPH 1.00IN
$$
KANOFSKY2 follow-up statements
647
WWUS53 KLSX 160334
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1034 PM CDT THU MAR 15 2012
MOC027-160344-
/O.CAN.KLSX.SV.W.0067.000000T0000Z-120316T0345Z/
CALLAWAY MO-
1034 PM CDT THU MAR 15 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN CALLAWAY COUNTY IS
CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
LAT...LON 3858 9230 3859 9229 3858 9216 3856 9210
3857 9202 3849 9148 3847 9126 3820 9123
3819 9140 3813 9152 3815 9154 3816 9165
3828 9165 3829 9220 3833 9220 3832 9226
3834 9229 3833 9233
TIME...MOT...LOC 0334Z 290DEG 18KT 3843 9158
$$
MOC051-055-071-073-151-160345-
/O.CON.KLSX.SV.W.0067.000000T0000Z-120316T0345Z/
COLE MO-CRAWFORD MO-FRANKLIN MO-GASCONADE MO-OSAGE MO-
1034 PM CDT THU MAR 15 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR OSAGE...
GASCONADE...SOUTHWESTERN FRANKLIN...NORTHWESTERN CRAWFORD AND EASTERN
COLE COUNTIES UNTIL 1045 PM CDT...
AT 1031 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS
STORM WAS LOCATED NEAR MOUNT STERLING...OR 8 MILES NORTHWEST OF
OWENSVILLE...MOVING EAST AT 20 MPH.
LOCATIONS IMPACTED INCLUDE...
OWENSVILLE...BLAND...DRAKE...ROSEBUD...GERALD...CANAAN...OAK HILL
AND JAPAN.
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 3858 9230 3859 9229 3858 9216 3856 9210
3857 9202 3849 9148 3847 9126 3820 9123
3819 9140 3813 9152 3815 9154 3816 9165
3828 9165 3829 9220 3833 9220 3832 9226
3834 9229 3833 9233
TIME...MOT...LOC 0334Z 290DEG 18KT 3843 9158
WIND...HAIL <50MPH 1.00IN
$$
KANOFSKY077
WWUS53 KLSX 160348
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1048 PM CDT THU MAR 15 2012
MOC051-055-071-073-151-160359-
/O.EXP.KLSX.SV.W.0067.000000T0000Z-120316T0345Z/
COLE MO-CRAWFORD MO-FRANKLIN MO-GASCONADE MO-OSAGE MO-
1048 PM CDT THU MAR 15 2012
...THE SEVERE THUNDERSTORM WARNING FOR OSAGE...GASCONADE...
SOUTHWESTERN FRANKLIN...NORTHWESTERN CRAWFORD AND EASTERN COLE
COUNTIES HAS EXPIRED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
HOWEVER SMALL HAIL IS STILL POSSIBLE WITH THIS THUNDERSTORM.
LAT...LON 3858 9230 3859 9229 3858 9216 3856 9210
3857 9202 3849 9148 3847 9126 3820 9123
3819 9140 3813 9152 3815 9154 3816 9165
3828 9165 3829 9220 3833 9220 3832 9226
3834 9229 3833 9233
TIME...MOT...LOC 0334Z 290DEG 18KT 3843 9158
$$
KANOFSKYThe 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, 9:01 PM CDT | Severe Thunderstorm Warning | LSX | Crawford, Washington | 44 min |
| 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, 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.