Alert archive / Missouri / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 152, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at May 6, 2012, 2:37 PM CDT for Monroe County, Shelby County, Missouri. It was in force for 53 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
- May 6, 2012, 2:37 PM CDT (19:37 UTC)
- Expired
- May 6, 2012, 3:30 PM CDT
- In force
- 53 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Monroe County, MO, Shelby County, MO
The radar
The St Louis radar (KLSX), 160 km from the middle of the area, began a volume at 19:39 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 6, 1:42 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 7.6 hours before the alert went out and 272 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
- 2361 J/kg
- Mixed-layer CIN
- -82 J/kg
- Mixed-layer LCL
- 571 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 181 m²/s²
- 0-3 km storm-relative helicity
- 188 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 9.6
The text
As transmitted, in the capitals the NWS used until 2016.
874
WUUS53 KLSX 061937
SVRLSX
MOC137-205-062030-
/O.NEW.KLSX.SV.W.0152.120506T1937Z-120506T2030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
237 PM CDT SUN MAY 6 2012
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WESTERN MONROE COUNTY IN NORTHEAST MISSOURI...
SOUTHWESTERN SHELBY COUNTY IN NORTHEAST MISSOURI...
* UNTIL 330 PM CDT
* AT 234 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR CAIRO...AND
MOVING EAST AT 20 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...
MADISON...WOODLAWN...MAUD...GRANVILLE...DUNCANS BRIDGE AND
HOLLIDAY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3967 9230 3966 9203 3934 9203 3935 9230
TIME...MOT...LOC 1937Z 248DEG 19KT 3949 9240
HAIL...1.00IN
WIND...60 MPH
$$
MILLER2 follow-up statements
987
WWUS53 KLSX 062007
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
307 PM CDT SUN MAY 6 2012
MOC205-062016-
/O.CAN.KLSX.SV.W.0152.000000T0000Z-120506T2030Z/
SHELBY MO-
307 PM CDT SUN MAY 6 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN SHELBY COUNTY IS
CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED.
LAT...LON 3960 9203 3934 9203 3935 9224
TIME...MOT...LOC 2006Z 248DEG 19KT 3955 9222
$$
MOC137-062030-
/O.CON.KLSX.SV.W.0152.000000T0000Z-120506T2030Z/
MONROE MO-
307 PM CDT SUN MAY 6 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR WESTERN MONROE
COUNTY UNTIL 330 PM CDT...
AT 302 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR WOODLAWN...AND
MOVING EAST AT 20 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...
MAINLY RURAL AREAS OF CENTRAL MONROE COUNTY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3960 9203 3934 9203 3935 9224
TIME...MOT...LOC 2006Z 248DEG 19KT 3955 9222
HAIL...1.00IN
WIND...60 MPH
$$
MILLER093 WWUS53 KLSX 062023 SVSLSX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 323 PM CDT SUN MAY 6 2012 MOC137-062033- /O.EXP.KLSX.SV.W.0152.000000T0000Z-120506T2030Z/ MONROE MO- 323 PM CDT SUN MAY 6 2012 ...THE SEVERE THUNDERSTORM WARNING FOR WESTERN MONROE COUNTY WILL EXPIRE AT 330 PM CDT... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF THE WARNED AREA. LAT...LON 3960 9203 3934 9203 3935 9224 TIME...MOT...LOC 2023Z 248DEG 19KT 3958 9211 $$ MILLER
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 3:05 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 40 min |
| May 6, 3:35 PM CDT | Severe Thunderstorm Warning | LSX | Marion, Ralls | 25 min |
| May 6, 4:13 PM CDT | Severe Thunderstorm Warning | LSX | Pike, Ralls | 32 min |
| May 6, 4:37 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 23 min |
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.