Alert archive / Missouri / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 6, NWS Springfield, MO
NWS Springfield, MO issued this severe thunderstorm warning at Feb 20, 2012, 7:06 PM CST for Vernon County, Missouri. It was in force for 39 min. 1 report 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 20, 2012, 7:06 PM CST (01:06 UTC)
- Expired
- Feb 20, 2012, 7:45 PM CST
- In force
- 39 min
- Issued by
- NWS Springfield, MO
- Area
- Storm-based polygon
- Hail
- 0.5 in
- Wind
- 60.0 mph
County Vernon County, MO
The radar
The Pleasant Hill radar (KEAX), 96 km from the middle of the area, began a volume at 01:10 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 |
|---|---|---|---|
| Feb 20, 7:33 PM CST | TSTM WND DMG | Nevada, MO | SEVERE THUNDERSTORM WIND GUSTS DAMAGED A SUBWAY RESTAURANT IN NEVADA. |
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 20, 5:01 PM CST | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 1.1 hours before the alert went out and 124 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
- 2222 m above ground
- 0-6 km bulk shear
- 73 kt
- 0-1 km storm-relative helicity
- 208 m²/s²
- 0-3 km storm-relative helicity
- 362 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
497
WUUS53 KSGF 210106
SVRSGF
MOC217-210145-
/O.NEW.KSGF.SV.W.0006.120221T0106Z-120221T0145Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
706 PM CST MON FEB 20 2012
THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
VERNON COUNTY IN WEST CENTRAL MISSOURI...
* UNTIL 745 PM CST.
* AT 704 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 8 MILES NORTHWEST
OF STOTESBURY TO 11 MILES WEST OF BRONAUGH...MOVING EAST AT 55 MPH.
THESE STORMS ARE CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH.
THESE STORMS JUST PRODUCED A 64 MPH WIND GUST AT THE FORT SCOTT
AIRPORT.
* LOCATIONS IMPACTED INCLUDE BRONAUGH...DEERFIELD...HARWOOD...
HORTON...METZ...MILO...MONTEVALLO...MOUNDVILLE...NEVADA...
RICHARDS...SCHELL CITY...SHELDON...STOTESBURY AND WALKER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THESE ARE DANGEROUS STORMS CAPABLE OF PRODUCING DAMAGING WINDS...IF
YOU ARE IN THEIR PATH SEEK SHELTER INDOORS AND STAY AWAY FROM
WINDOWS.
&&
LAT...LON 3806 9462 3806 9427 3804 9423 3806 9421
3805 9419 3806 9413 3804 9411 3804 9406
3765 9407 3764 9408 3765 9462
TIME...MOT...LOC 0106Z 250DEG 47KT 3805 9465 3764 9463
WIND...HAIL 60MPH <.50IN
$$
CRAMER2 follow-up statements
207
WWUS53 KSGF 210133
SVSSGF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
733 PM CST MON FEB 20 2012
MOC217-210145-
/O.CON.KSGF.SV.W.0006.000000T0000Z-120221T0145Z/
VERNON MO-
733 PM CST MON FEB 20 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CST
FOR VERNON COUNTY...
AT 729 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
TRACK SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM METZ TO
SHELDON...MOVING EAST AT 50 MPH. THESE STORMS ARE CAPABLE OF
PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS HAVE A
HISTORY OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH ACROSS
PORTIONS OF BOURBON AND CRAWFORD COUNTIES IN KANSAS.
LOCATIONS IMPACTED INCLUDE HARWOOD...HORTON...METZ...MILO...
MONTEVALLO...NEVADA...SCHELL CITY...SHELDON AND WALKER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THESE ARE DANGEROUS STORMS CAPABLE OF PRODUCING DAMAGING WINDS...IF
YOU ARE IN THEIR PATH SEEK SHELTER INDOORS AND STAY AWAY FROM
WINDOWS.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CST MONDAY
EVENING FOR SOUTHEAST KANSAS AND SOUTHWESTERN MISSOURI.
&&
LAT...LON 3806 9427 3804 9423 3806 9421 3805 9419
3806 9413 3804 9411 3804 9406 3765 9407
3764 9408 3765 9441 3806 9450
TIME...MOT...LOC 0133Z 249DEG 44KT 3805 9436 3770 9428
WIND...HAIL 60MPH <.50IN
$$
GAGAN377
WWUS53 KSGF 210144
SVSSGF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
744 PM CST MON FEB 20 2012
MOC217-210155-
/O.EXP.KSGF.SV.W.0006.000000T0000Z-120221T0145Z/
VERNON MO-
744 PM CST MON FEB 20 2012
...THE SEVERE THUNDERSTORM WARNING FOR VERNON COUNTY HAS EXPIRED...
NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE SEVERE
THUNDERSTORMS THAT PROMPTED THE WARNING ARE EXITING THE WARNED
AREA...THUS THE WARNING IS BEING ALLOWED TO EXPIRE.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CST MONDAY
EVENING FOR SOUTHEAST KANSAS AND SOUTHWESTERN MISSOURI.
LAT...LON 3806 9427 3804 9423 3806 9421 3805 9419
3806 9413 3804 9411 3804 9406 3765 9407
3764 9408 3765 9441 3806 9450
TIME...MOT...LOC 0145Z 249DEG 44KT 3810 9418 3774 9410
$$
GAGANThe office that day
Everything else NWS Springfield, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 20, 7:44 PM CST | Special Weather Statement | SGF | Cedar, St. Clair | 31 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.