Alert archive / Missouri / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 70, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Mar 16, 2012, 12:43 AM CDT for Callaway County, Missouri. It was in force for 47 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 16, 2012, 12:43 AM CDT (05:43 UTC)
- Expired
- Mar 16, 2012, 1:30 AM CDT
- In force
- 47 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
County Callaway County, MO
The radar
The St Louis radar (KLSX), 95 km from the middle of the area, began a volume at 05:44 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 00:00Z, 5.7 hours before the alert went out and 285 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.
908 WUUS53 KLSX 160543 SVRLSX MOC027-160630- /O.NEW.KLSX.SV.W.0070.120316T0543Z-120316T0630Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1243 AM CDT FRI MAR 16 2012 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN CALLAWAY COUNTY IN CENTRAL MISSOURI... * UNTIL 130 AM CDT * AT 1239 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED 6 MILES EAST OF FULTON...AND MOVING EAST AT 15 MPH. * LOCATIONS IMPACTED INCLUDE... WILLIAMSBURG AND SHAMROCK. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE HAIL AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS. && LAT...LON 3904 9164 3878 9164 3872 9188 3889 9196 TIME...MOT...LOC 0543Z 250DEG 14KT 3883 9181 WIND...HAIL <50MPH 1.00IN $$ GKS
2 follow-up statements
219 WWUS53 KLSX 160614 SVSLSX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 114 AM CDT FRI MAR 16 2012 MOC027-160630- /O.CON.KLSX.SV.W.0070.000000T0000Z-120316T0630Z/ CALLAWAY MO- 114 AM CDT FRI MAR 16 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHEASTERN CALLAWAY COUNTY UNTIL 130 AM CDT... AT 109 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS STORM WAS LOCATED NEAR WILLIAMSBURG...OR 12 MILES EAST OF FULTON... MOVING NORTHEAST AT 10 MPH. LOCATIONS IMPACTED INCLUDE... WILLIAMSBURG AND SHAMROCK. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE HAIL AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS. TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 3904 9164 3878 9164 3872 9188 3889 9196 TIME...MOT...LOC 0614Z 236DEG 8KT 3886 9172 WIND...HAIL <50MPH 1.00IN $$ GKS
005 WWUS53 KLSX 160633 SVSLSX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 133 AM CDT FRI MAR 16 2012 MOC027-160644- /O.EXP.KLSX.SV.W.0070.000000T0000Z-120316T0630Z/ CALLAWAY MO- 133 AM CDT FRI MAR 16 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CALLAWAY COUNTY 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 THIS THUNDERSTORM. LAT...LON 3904 9164 3878 9164 3872 9188 3889 9196 TIME...MOT...LOC 0614Z 232DEG 9KT 3885 9173 $$ GKS
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, 9:01 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, 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, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.