Alert archive / Missouri / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 234, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Aug 8, 2012, 7:26 PM CDT for Cole County, Missouri. It was in force for 34 min. 6 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
- Aug 8, 2012, 7:26 PM CDT (00:26 UTC)
- Expired
- Aug 8, 2012, 8:00 PM CDT
- In force
- 34 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Cole County, MO
The radar
The St Louis radar (KLSX), 135 km from the middle of the area, began a volume at 00:27 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 |
|---|---|---|---|
| Aug 8, 7:27 PM CDT | HAIL 1.75 | 1 S Lohman, MO | RELAYED BY JEFFERSON CITY POLICE DEPARTMENT |
| Aug 8, 7:30 PM CDT | HAIL 0.5 | 3 Ese Jefferson City, MO | PEA TO MARBLE SIZED HAIL |
| Aug 8, 7:38 PM CDT | HAIL 0.7 | 1 W Jefferson City, MO | |
| Aug 8, 7:42 PM CDT | HAIL 0.25 | Jefferson City, MO | OBSERVED ON THE WEST SIDE OF JEFFERSON CITY |
| Aug 8, 7:55 PM CDT | HAIL 0.7 | Jefferson City, MO | |
| Aug 8, 8:01 PM CDT | HAIL 0.88 | Jefferson City, MO | DIME AND NICKEL SIZE HAIL ALONG WITH ESTIMATED 50MPH WINDS ON THE EAST SIDE OF TOWN |
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, 0.4 hours before the alert went out and 234 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
- 2423 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- -111 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
232
WUUS53 KLSX 090026
SVRLSX
MOC051-090100-
/O.NEW.KLSX.SV.W.0234.120809T0026Z-120809T0100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
726 PM CDT WED AUG 8 2012
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
COLE COUNTY IN CENTRAL MISSOURI...
* UNTIL 800 PM CDT
* AT 722 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR
RUSSELLVILLE...AND MOVING NORTHEAST AT 25 MPH.
HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE
DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.
* LOCATIONS IMPACTED INCLUDE...
JEFFERSON CITY...CENTERTOWN...ST. MARTINS...WARDSVILLE...ELSTON...
MARION AND OSAGE CITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3870 9238 3868 9235 3867 9232 3864 9225
3864 9222 3862 9220 3861 9220 3857 9213
3856 9210 3857 9201 3855 9203 3854 9203
3839 9238 3850 9247
TIME...MOT...LOC 0026Z 237DEG 22KT 3851 9234
HAIL...1.00IN
WIND...60 MPH
$$
CARNEY1 follow-up statement
513
WWUS53 KLSX 090029
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
729 PM CDT WED AUG 8 2012
MOC051-090100-
/O.CON.KLSX.SV.W.0234.000000T0000Z-120809T0100Z/
COLE MO-
729 PM CDT WED AUG 8 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR COLE COUNTY
UNTIL 800 PM CDT...
AT 727 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR BRAZITO...AND
MOVING NORTHEAST AT 25 MPH.
HAZARD...GOLF BALL SIZE HAIL AND 60 MPH WIND GUSTS.
SOURCE...LAW ENFORCEMENT.
IMPACT...DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE DAMAGE...
WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.
LOCATIONS IMPACTED INCLUDE...
JEFFERSON CITY...ST. MARTINS...WARDSVILLE...ELSTON...MARION AND OSAGE
CITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS STORM IS PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.
&&
LAT...LON 3870 9238 3868 9235 3867 9232 3864 9225
3864 9222 3862 9220 3861 9220 3857 9213
3856 9210 3857 9201 3855 9203 3854 9203
3839 9238 3850 9247
TIME...MOT...LOC 0029Z 235DEG 23KT 3852 9232
HAIL...1.75IN
WIND...60 MPH
$$
CARNEYThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 7:47 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Cole, Osage | 33 min |
| Aug 8, 9:31 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Warren | 44 min |
| Aug 8, 10:51 PM CDT | Areal Flood Advisory | LSX | Saint Charles | 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.