Alert archive / Missouri / Tornado Warnings in 2011
Tornado Warning 6, NWS Springfield, MO
NWS Springfield, MO issued this tornado warning at Feb 27, 2011, 9:44 PM CST for Polk County, Missouri. It was in force for 46 min. 5 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, 9:44 PM CST (03:44 UTC)
- Expired
- Feb 27, 2011, 10:30 PM CST
- In force
- 46 min
- Issued by
- NWS Springfield, MO
- Area
- Storm-based polygon
County Polk County, MO
The radar
The Springfield radar (KSGF), 44 km from the middle of the area, began a volume at 03:45 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, 10:10 PM CST | TSTM WND DMG | Half Way, MO | EMERGENCY MANAGER REPORTED TREES DOWN AND POWER OUT IN HALF WAY. CORRECTED TIME AND EVENT TYPE. |
| Feb 27, 10:16 PM CST | FUNNEL CLOUD | Half Way, MO | REPORT OF FUNNEL CLOUD REPORTED AT 490TH ROAD AT 178TH ROAD. |
| Feb 27, 10:16 PM CST | HAIL 1 | Half Way, MO | |
| Feb 27, 10:16 PM CST | NON-TSTM WND DMG | Half Way, MO | EMERGENCY MANAGER REPORTED TREES DOWN AND POWER OUT IN HALF WAY. |
| Feb 27, 10:29 PM CST | HAIL 1 | Bolivar, MO | ALSO MEASURED 40 KT WIND GUST. |
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, 7:24 PM CST | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 3.7 hours before the alert went out and 92 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
- 626 J/kg
- Mixed-layer CIN
- -80 J/kg
- Mixed-layer LCL
- 1011 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 369 m²/s²
- 0-3 km storm-relative helicity
- 472 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 7.4
The text
As transmitted, in the capitals the NWS used until 2016.
724
WFUS53 KSGF 280344
TORSGF
MOC167-280430-
/O.NEW.KSGF.TO.W.0006.110228T0344Z-110228T0430Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
944 PM CST SUN FEB 27 2011
THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A
* TORNADO WARNING FOR...
POLK COUNTY IN SOUTHWEST MISSOURI...
* UNTIL 1030 PM CST.
* AT 940 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
TORNADO 11 MILES WEST OF ALDRICH...OR 8 MILES NORTHEAST OF
GREENFIELD...MOVING EAST AT 60 MPH.
* LOCATIONS IMPACTED INCLUDE ALDRICH...BOLIVAR...BRIGHTON...
DUNNEGAN...EUDORA...FAIR PLAY...GOODSON...HALF WAY...MORRISVILLE...
PLEASANT HOPE AND POLK.
OTHER LOCATIONS IN THE WARNING INCLUDE POMME DE TERRE LAKE AND
STOCKTON LAKE.
IN ADDITION TO A TORNADO...THIS STORM IS CAPABLE OF PRODUCING LARGE
DAMAGING HAIL UP TO GOLF BALL SIZE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
&&
LAT...LON 3773 9320 3772 9317 3745 9318 3743 9319
3742 9363 3773 9362 3779 9320
TIME...MOT...LOC 0344Z 261DEG 54KT 3752 9368
$$
SCHAUMANN2 follow-up statements
254
WWUS53 KSGF 280409
SVSSGF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1009 PM CST SUN FEB 27 2011
MOC167-280430-
/O.CON.KSGF.TO.W.0006.000000T0000Z-110228T0430Z/
POLK MO-
1009 PM CST SUN FEB 27 2011
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 PM CST FOR EASTERN
POLK COUNTY...
AT 1005 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO 4 MILES SOUTHWEST OF HALF WAY...OR 8 MILES
SOUTHEAST OF BOLIVAR...MOVING EAST AT 60 MPH.
LOCATIONS IMPACTED INCLUDE BOLIVAR...GOODSON...HALF WAY AND POLK.
IN ADDITION TO A TORNADO...THIS STORM IS CAPABLE OF PRODUCING LARGE
DAMAGING HAIL UP TO GOLF BALL SIZE...AND DESTRUCTIVE STRAIGHT LINE
WINDS IN EXCESS OF 70 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CST MONDAY MORNING FOR
SOUTHEAST KANSAS AND SOUTHERN MISSOURI.
&&
LAT...LON 3773 9320 3772 9318 3767 9317 3751 9319
3746 9342 3775 9349 3779 9325 3779 9320
TIME...MOT...LOC 0409Z 261DEG 54KT 3757 9321
$$
BOXELL512
WWUS53 KSGF 280422
SVSSGF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1022 PM CST SUN FEB 27 2011
MOC167-280431-
/O.EXP.KSGF.TO.W.0006.000000T0000Z-110228T0430Z/
POLK MO-
1022 PM CST SUN FEB 27 2011
...THE TORNADO WARNING FOR EASTERN POLK COUNTY WILL EXPIRE AT 1030 PM
CST...
NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE TORNADO
THAT PROMPTED THE WARNING IS EXITING THE WARNED AREA...THUS THE
WARNING IS BEING ALLOWED TO EXPIRE.
A SEVERE THUNDERSTORM WARNING IS IN EFFECT FOR POLK COUNTY. THAT
SEVERE THUNDERSTORM IS CURRENTLY ENTERING THE WESTERN PART OF THE
COUNTY.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CST MONDAY MORNING FOR
SOUTHEAST KANSAS AND SOUTHERN MISSOURI.
LAT...LON 3773 9320 3772 9318 3767 9317 3751 9319
3746 9342 3775 9349 3779 9325 3779 9320
TIME...MOT...LOC 0421Z 261DEG 54KT 3759 9298
$$
BOXELLThe office that day
Everything else NWS Springfield, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 27, 8:39 PM CST | Tornado Warning | SGF | Barton, Jasper | 51 min |
| Feb 27, 9:14 PM CST | Tornado Warning | SGF | Barton, Cedar, Dade | 46 min |
| Feb 27, 9:19 PM CST | Tornado Warning | SGF | Miller, Morgan | 26 min |
| Feb 27, 9:36 PM CST | Severe Thunderstorm Warning | SGF | Camden, Maries, Miller, Pulaski | 39 min |
| Feb 27, 9:42 PM CST | Severe Thunderstorm Warning | SGF | Barton, Vernon | 47 min |
| Feb 27, 9:54 PM CST | Severe Thunderstorm Warning | SGF | Cedar, Dade | 51 min |
| Feb 27, 10:03 PM CST | Severe Thunderstorm Warning | SGF | Jasper, Newton | 42 min |
| Feb 27, 10:07 PM CST | Tornado Warning | SGF | Dallas, Laclede, Polk | 38 min |
| Feb 27, 10:15 PM CST | Severe Thunderstorm Warning | SGF | Hickory, Polk | 45 min |
| Feb 27, 10:35 PM CST | Severe Thunderstorm Warning | SGF | Dade, Lawrence | 38 min |
| Feb 27, 10:38 PM CST | Severe Thunderstorm Warning | SGF | Camden, Dallas, Hickory, Laclede | 52 min |
| Feb 27, 10:39 PM CST | Tornado Warning | SGF | Camden, Laclede, Phelps, Pulaski, Texas | 51 min |
| Feb 27, 10:59 PM CST | Severe Thunderstorm Warning | SGF | Greene | 17 min |
| Feb 27, 11:15 PM CST | Severe Thunderstorm Warning | SGF | Camden, Laclede, Maries, Miller, Phelps, Pulaski and 3 more | 45 min |
| Feb 27, 11:31 PM CST | Tornado Warning | SGF | Dent, Phelps | 17 min |
| Feb 27, 11:45 PM CST | Severe Thunderstorm Warning | SGF | Dent, Phelps, Shannon, Texas | 45 min |
| Feb 28, 2:25 PM CST | River Flood Warning | SGF | Vernon | 40 hr |
Nearby
Tornado Warnings in Missouri, 2011Every tornado warning in 2011Tornadoes 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.