Alert archive / Missouri / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 2, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Feb 27, 2011, 5:42 PM CST for Marion County, Monroe County, Shelby County, Missouri. It was in force for 48 min. 9 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
- Feb 27, 2011, 5:42 PM CST (23:42 UTC)
- Expired
- Feb 27, 2011, 6:30 PM CST
- In force
- 48 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Marion County, MO, Monroe County, MO, Shelby County, MO
The radar
The St Louis radar (KLSX), 149 km from the middle of the area, began a volume at 23:44 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 27, 5:59 PM CST | HAIL 0.25 | Clarence, MO | |
| Feb 27, 6:00 PM CST | TSTM WND DMG | 3 S Shelbina, MO | WOODEN FENCE BLOWN DOWN AND DEBRIS SCATTERED POWER POLE ALSO SNAPPED. TIME ESTIMATED FROM RADAR. |
| Feb 27, 6:01 PM CST | TSTM WND DMG | 2 Se Shelbina, MO | BARN BLOWN DOWN AND TREES DAMAGED. TIME ESTIMATED FROM RADAR. |
| Feb 27, 6:01 PM CST | HAIL 0.25 | Clarence, MO | |
| Feb 27, 6:10 PM CST | HAIL 0.25 | Shelbyville, MO | |
| Feb 27, 6:20 PM CST | HAIL 0.5 | Palmyra, MO | |
| Feb 27, 6:23 PM CST | HAIL 0.25 | Palmyra, MO | |
| Feb 27, 6:23 PM CST | HAIL 0.75 | Palmyra, MO | |
| Feb 27, 6:24 PM CST | HAIL 0.88 | Palmyra, MO |
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 |
|---|---|---|---|
| Feb 27, 5:33 PM CST | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 11.7 hours before the alert went out and 226 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
- 680 m above ground
- 0-6 km bulk shear
- 77 kt
- 0-1 km storm-relative helicity
- 106 m²/s²
- 0-3 km storm-relative helicity
- 172 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
235
WUUS53 KLSX 272342
SVRLSX
MOC127-137-205-280030-
/O.NEW.KLSX.SV.W.0002.110227T2342Z-110228T0030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
542 PM CST SUN FEB 27 2011
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
MARION COUNTY IN NORTHEAST MISSOURI...
NORTHWESTERN MONROE COUNTY IN NORTHEAST MISSOURI...
SHELBY COUNTY IN NORTHEAST MISSOURI...
* UNTIL 630 PM CST
* AT 540 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 8 MILES
NORTHWEST OF WOODLAWN...OR 10 MILES SOUTHEAST OF MACON...AND MOVING
NORTHEAST AT 65 MPH.
* LOCATIONS IMPACTED INCLUDE...
SHELBINA...PALMYRA...WOODLAWN...MAUD...CLARENCE...GRANVILLE...
SHELBYVILLE...EMDEN...WARREN...PHILADELPHIA...BETHEL...HUNNEWELL
AND TAYLOR.
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 3994 9144 3991 9143 3987 9145 3982 9141
3976 9139 3968 9166 3969 9172 3967 9172
3951 9231 3980 9229 3995 9190
TIME...MOT...LOC 2342Z 240DEG 55KT 3965 9231
WIND...HAIL 60MPH 1.00IN
$$
CARNEY2 follow-up statements
983
WWUS53 KLSX 272358
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
558 PM CST SUN FEB 27 2011
MOC127-137-205-280030-
/O.CON.KLSX.SV.W.0002.000000T0000Z-110228T0030Z/
MONROE MO-MARION MO-SHELBY MO-
558 PM CST SUN FEB 27 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SHELBY...
MARION AND NORTHWESTERN MONROE COUNTIES UNTIL 630 PM CST...
AT 557 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
SHELBINA...MOVING NORTHEAST AT 60 MPH.
LOCATIONS IMPACTED INCLUDE...
PALMYRA...SHELBYVILLE...EMDEN...WARREN...PHILADELPHIA...BETHEL...
HUNNEWELL AND TAYLOR.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
&&
LAT...LON 3994 9144 3991 9143 3987 9145 3982 9141
3976 9139 3968 9166 3969 9172 3967 9172
3951 9231 3980 9229 3995 9190
TIME...MOT...LOC 2358Z 244DEG 53KT 3975 9204
WIND...HAIL 60MPH 1.00IN
$$
CARNEY770
WWUS53 KLSX 280016
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
616 PM CST SUN FEB 27 2011
MOC137-280026-
/O.CAN.KLSX.SV.W.0002.000000T0000Z-110228T0030Z/
MONROE MO-
616 PM CST SUN FEB 27 2011
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN MONROE COUNTY IS
CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM.
LAT...LON 3994 9144 3991 9143 3987 9145 3982 9141
3976 9139 3968 9165 3969 9172 3967 9172
3966 9203 3985 9215 3995 9190
TIME...MOT...LOC 0016Z 244DEG 49KT 3985 9177
$$
MOC127-205-280030-
/O.CON.KLSX.SV.W.0002.000000T0000Z-110228T0030Z/
MARION MO-SHELBY MO-
616 PM CST SUN FEB 27 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN SHELBY
AND MARION COUNTIES UNTIL 630 PM CST...
AT 614 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THIS
STORM WAS LOCATED NEAR PHILADELPHIA...OR 13 MILES NORTH OF MONROE
CITY...MOVING NORTHEAST AT 55 MPH.
LOCATIONS IMPACTED INCLUDE...
PALMYRA...PHILADELPHIA AND TAYLOR.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
&&
LAT...LON 3994 9144 3991 9143 3987 9145 3982 9141
3976 9139 3968 9165 3969 9172 3967 9172
3966 9203 3985 9215 3995 9190
TIME...MOT...LOC 0016Z 244DEG 49KT 3985 9177
WIND...HAIL <50MPH 1.00IN
$$
CARNEYThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 26, 9:49 PM CST | Dense Fog Advisory | LSX | Audrain, Boone, Callaway, Cole, Knox, Lewis and 7 more | 6 hr |
| Feb 27, 10:37 AM CST | Severe Thunderstorm Warning | LSX | Audrain, Pike | 23 min |
| Feb 27, 1:18 PM CST | Flood Watch | LSX | Audrain, Boone, Callaway, Cole, Knox, Lewis and 8 more | 11 hr |
| Feb 27, 3:10 PM CST | Dense Fog Advisory | LSX | Audrain, Knox, Lewis, Marion, Monroe, Pike and 2 more | 6 hr |
Nearby
Severe Thunderstorm Warnings in Missouri, 2011Every severe thunderstorm warning in 2011
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.