Alert archive / Missouri / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 235, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Aug 8, 2012, 7:47 PM CDT for Callaway County, Cole County, Osage County, Missouri. It was in force for 33 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
- Aug 8, 2012, 7:47 PM CDT (00:47 UTC)
- Expired
- Aug 8, 2012, 8:20 PM CDT
- In force
- 33 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Callaway County, MO, Cole County, MO, Osage County, MO
The radar
The St Louis radar (KLSX), 130 km from the middle of the area, began a volume at 00:49 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, 7:55 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, 0.8 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
- 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.
420
WUUS53 KLSX 090047
SVRLSX
MOC027-051-151-090130-
/O.NEW.KLSX.SV.W.0235.120809T0047Z-120809T0130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
747 PM CDT WED AUG 8 2012
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHWESTERN CALLAWAY COUNTY IN CENTRAL MISSOURI...
NORTHEASTERN COLE COUNTY IN CENTRAL MISSOURI...
NORTH CENTRAL OSAGE COUNTY IN CENTRAL MISSOURI...
* UNTIL 830 PM CDT
* AT 744 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR JEFFERSON
CITY...AND MOVING NORTHEAST AT 25 MPH.
HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.
SOURCE...LAW ENFORCEMENT. GOLF BALL SIZED HAIL WAS REPORTED
1 MILE SOUTH OF LOHMAN AT 727 PM.
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...HOLTS SUMMIT...LAKE MYKEE...NEW BLOOMFIELD...
WAINWRIGHT...OSAGE CITY...GUTHRIE...BONNOTS MILL...TEBBETTS...
FRANKENSTEIN...MOKANE AND STEEDMAN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3864 9238 3867 9232 3867 9230 3864 9225
3865 9223 3871 9222 3885 9191 3862 9172
3850 9212
TIME...MOT...LOC 0046Z 244DEG 20KT 3857 9221
HAIL...1.00IN
WIND...60 MPH
$$
CARNEY3 follow-up statements
484
WWUS53 KLSX 090100
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
800 PM CDT WED AUG 8 2012
MOC027-051-151-090130-
/O.CON.KLSX.SV.W.0235.000000T0000Z-120809T0130Z/
CALLAWAY MO-COLE MO-OSAGE MO-
800 PM CDT WED AUG 8 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTH CENTRAL
OSAGE...NORTHEASTERN COLE AND SOUTHWESTERN CALLAWAY COUNTIES UNTIL
830 PM CDT...
AT 757 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR HOLTS
SUMMIT...AND MOVING NORTHEAST AT 30 MPH.
HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE
DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.
LOCATIONS IMPACTED INCLUDE...
NEW BLOOMFIELD...CHAMOIS...OSAGE CITY...GUTHRIE...BONNOTS MILL...
TEBBETTS...FRANKENSTEIN...MOKANE AND STEEDMAN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3864 9238 3867 9232 3867 9230 3864 9225
3865 9223 3871 9222 3885 9191 3862 9172
3850 9212
TIME...MOT...LOC 0100Z 253DEG 25KT 3860 9207
HAIL...1.00IN
WIND...60 MPH
$$
CARNEY899
WWUS53 KLSX 090115
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
815 PM CDT WED AUG 8 2012
MOC051-090125-
/O.CAN.KLSX.SV.W.0235.000000T0000Z-120809T0130Z/
COLE MO-
815 PM CDT WED AUG 8 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN COLE COUNTY IS
CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
LAT...LON 3869 9212 3878 9186 3862 9172 3853 9203
3855 9203 3857 9201 3856 9210 3859 9218
3864 9220
TIME...MOT...LOC 0115Z 253DEG 25KT 3862 9194
$$
MOC027-151-090130-
/O.CON.KLSX.SV.W.0235.000000T0000Z-120809T0130Z/
CALLAWAY MO-OSAGE MO-
815 PM CDT WED AUG 8 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTH CENTRAL
OSAGE AND SOUTHWESTERN CALLAWAY COUNTIES UNTIL 830 PM CDT...
AT 814 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 9 MILES SOUTHEAST
OF LAKE MYKEE...AND MOVING EAST AT 30 MPH.
HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE
DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.
LOCATIONS IMPACTED INCLUDE...
FRANKENSTEIN...MOKANE AND STEEDMAN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3869 9212 3878 9186 3862 9172 3853 9203
3855 9203 3857 9201 3856 9210 3859 9218
3864 9220
TIME...MOT...LOC 0115Z 253DEG 25KT 3862 9194
HAIL...0.75IN
WIND...60 MPH
$$
CARNEY106
WWUS53 KLSX 090120
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
820 PM CDT WED AUG 8 2012
MOC027-151-090130-
/O.CAN.KLSX.SV.W.0235.000000T0000Z-120809T0130Z/
CALLAWAY MO-OSAGE MO-
820 PM CDT WED AUG 8 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL OSAGE AND
SOUTHWESTERN CALLAWAY COUNTIES IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
HOWEVER GUSTY WINDS AND HEAVY RAIN ARE STILL POSSIBLE WITH THIS
THUNDERSTORM.
LAT...LON 3869 9212 3878 9186 3862 9172 3853 9203
3855 9203 3857 9201 3856 9210 3859 9218
3864 9220
TIME...MOT...LOC 0120Z 253DEG 25KT 3863 9190
$$
CARNEYThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 7:26 PM CDT | Severe Thunderstorm Warning | LSX | Cole | 34 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.