Alert archive / Missouri / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 24, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Mar 2, 2012, 4:08 AM CST for 7 counties in Missouri. It was in force for 37 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 2, 2012, 4:08 AM CST (10:08 UTC)
- Expired
- Mar 2, 2012, 4:45 AM CST
- In force
- 37 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 50.0 mph
Counties Callaway County, MO, Cole County, MO, Franklin County, MO, Gasconade County, MO, Montgomery County, MO, Osage County, MO, Warren County, MO
The radar
The St Louis radar (KLSX), 81 km from the middle of the area, began a volume at 10:10 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 2, 4:34 AM CST | HAIL 0.25 | Gasconade, MO | |
| Mar 2, 4:43 AM CST | HAIL 2 | Hermann, MO | HAIL COVERING GROUND. |
| Mar 2, 4:47 AM CST | HAIL 0.7 | 5 Se Linn, MO | DECK COVERED IN HAIL. |
| Mar 2, 4:50 AM CST | HAIL 0.7 | Pershing, MO | HAIL COVERING THE GROUND |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 2, 2:07 AM CST | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 10.1 hours before the alert went out and 274 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3164 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 241 m²/s²
- 0-3 km storm-relative helicity
- 396 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
149 WUUS53 KLSX 021008 SVRLSX MOC027-051-071-073-139-151-219-021045- /O.NEW.KLSX.SV.W.0024.120302T1008Z-120302T1045Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 408 AM CST FRI MAR 2 2012 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN CALLAWAY COUNTY IN CENTRAL MISSOURI... EAST CENTRAL COLE COUNTY IN CENTRAL MISSOURI... NORTHWESTERN FRANKLIN COUNTY IN EAST CENTRAL MISSOURI... GASCONADE COUNTY IN EAST CENTRAL MISSOURI... MONTGOMERY COUNTY IN EAST CENTRAL MISSOURI... NORTHERN OSAGE COUNTY IN CENTRAL MISSOURI... WEST CENTRAL WARREN COUNTY IN EAST CENTRAL MISSOURI... * UNTIL 445 AM CST * AT 402 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING HALF DOLLAR SIZE HAIL. THIS STORM WAS LOCATED NEAR TAOS...OR 9 MILES WEST OF LINN...AND MOVING NORTHEAST AT 60 MPH. HALF DOLLAR SIZE HAIL WAS REPORTED WITH THIS STORM NEAR TAOS AT 400 AM. * LOCATIONS IMPACTED INCLUDE... LINN...HERMANN...NEW HAVEN...CHAMOIS...MOUNT STERLING...DRAKE...BIG SPRING...FRANKENSTEIN...MOKANE...STEEDMAN...REFORM...PORTLAND... MORRISON...GASCONADE...BAY...SWISS...AMERICUS...RHINELAND... MCKITTRICK 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 3890 9136 3849 9114 3837 9206 3864 9218 TIME...MOT...LOC 1007Z 250DEG 54KT 3852 9192 WIND...HAIL <50MPH 1.25IN $$ KANOFSKY
1 follow-up statement
241 WWUS53 KLSX 021018 SVSLSX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 418 AM CST FRI MAR 2 2012 MOC051-021027- /O.CAN.KLSX.SV.W.0024.000000T0000Z-120302T1045Z/ COLE MO- 418 AM CST FRI MAR 2 2012 ...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL COLE COUNTY IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. LAT...LON 3869 9202 3890 9136 3849 9114 3839 9190 TIME...MOT...LOC 1017Z 250DEG 54KT 3857 9174 $$ MOC027-071-073-139-151-219-021045- /O.CON.KLSX.SV.W.0024.000000T0000Z-120302T1045Z/ CALLAWAY MO-FRANKLIN MO-GASCONADE MO-MONTGOMERY MO-OSAGE MO-WARREN 418 AM CST FRI MAR 2 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WEST CENTRAL WARREN...NORTHEASTERN OSAGE...MONTGOMERY...GASCONADE...NORTHWESTERN FRANKLIN AND SOUTHEASTERN CALLAWAY COUNTIES UNTIL 445 AM CST... AT 415 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL. THIS STORM WAS LOCATED 7 MILES NORTHEAST OF LINN...MOVING EAST AT 60 MPH. IN ADDITION...GOLF BALL SIZE HAIL WAS REPORTED WHEN THIS STORM MOVED THROUGH BRASITO AT 350 AM. LOCATIONS IMPACTED INCLUDE... HERMANN...NEW HAVEN...MOUNT STERLING...DRAKE...BIG SPRING... REFORM...PORTLAND...MORRISON...GASCONADE...BAY...SWISS... AMERICUS...RHINELAND...MCKITTRICK...BERGER...HIGH HILL AND LYON. 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 3869 9202 3890 9136 3849 9114 3839 9190 TIME...MOT...LOC 1017Z 250DEG 54KT 3857 9174 WIND...HAIL <50MPH 1.75IN $$ KANOFSKY
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 2, 3:34 AM CST | Severe Thunderstorm Warning | LSX | Callaway, Cole, Moniteau, Osage | 41 min |
| Mar 2, 3:59 AM CST | Severe Thunderstorm Warning | LSX | Cole, Osage | 46 min |
| Mar 2, 4:37 AM CST | Severe Thunderstorm Warning | LSX | Franklin, Gasconade, Osage | 38 min |
| Mar 2, 4:41 AM CST | Severe Thunderstorm Warning | LSX | Franklin, Gasconade, Lincoln, Montgomery, Warren | 49 min |
| Mar 2, 5:10 AM CST | Severe Thunderstorm Warning | LSX | Lincoln, Saint Charles, Warren | 39 min |
| Mar 2, 5:13 AM CST | Severe Thunderstorm Warning | LSX | Franklin, Saint Charles, Saint Louis, Warren | 47 min |
| Mar 2, 5:56 AM CST | Severe Thunderstorm Warning | LSX | Lincoln, Saint Charles, Saint Louis, City of Saint Louis | 49 min |
| Mar 2, 5:59 AM CST | Severe Thunderstorm Warning | LSX | Callaway | 28 min |
| Mar 2, 6:36 AM CST | Severe Thunderstorm Warning | LSX | Lincoln, Montgomery, Pike | 39 min |
| Mar 2, 7:07 AM CST | Severe Thunderstorm Warning | LSX | Lincoln, Pike | 30 min |
| Mar 2, 1:59 PM CST | Wind Advisory | LSX | Crawford, Franklin, Gasconade, Iron, Jefferson, Lincoln and 10 more | 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.