Alert archive / Oklahoma / Tornado Warnings in 2011
Tornado Warning 44, NWS Tulsa, OK
NWS Tulsa, OK issued this tornado warning at Apr 19, 2011, 5:51 PM CDT for LeFlore County, Pushmataha County, Oklahoma. It was in force for 54 min. 4 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
- Apr 19, 2011, 5:51 PM CDT (22:51 UTC)
- Expired
- Apr 19, 2011, 6:45 PM CDT
- In force
- 54 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
Counties LeFlore County, OK, Pushmataha County, OK
The radar
The Western Arkansas radar (KSRX), 81 km from the middle of the area, began a volume at 22:53 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 |
|---|---|---|---|
| Apr 19, 6:13 PM CDT | TORNADO | 2 Se Honobia, OK | TORNADO TRACKED ENE AND WAS ON THE GROUND FOR SEVERAL MINUTES. NO STRUCTURAL DAMAGE NOTED. |
| Apr 19, 6:30 PM CDT | HAIL 1.75 | Muse, OK | |
| Apr 19, 6:31 PM CDT | HAIL 0.88 | Muse, OK | |
| Apr 19, 6:51 PM CDT | HAIL 0.75 | 5 Ne Big Cedar, OK |
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 |
|---|---|---|---|
| Apr 19, 2:16 PM CDT | Tornado Watch | SPC | 10 hr |
The nearest sounding before it
Shreveport, LA (KSHV), launched 12:00Z, 10.9 hours before the alert went out and 253 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
- 2420 J/kg
- Mixed-layer CIN
- -204 J/kg
- Mixed-layer LCL
- 642 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 234 m²/s²
- 0-3 km storm-relative helicity
- 299 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
020
WFUS54 KTSA 192251
TORTSA
OKC079-127-192345-
/O.NEW.KTSA.TO.W.0044.110419T2251Z-110419T2345Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
551 PM CDT TUE APR 19 2011
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHERN LE FLORE COUNTY IN SOUTHEAST OKLAHOMA
NORTHEASTERN PUSHMATAHA COUNTY IN SOUTHEAST OKLAHOMA
* UNTIL 645 PM CDT
* AT 548 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED 19 MILES SOUTHWEST OF WHITESBORO...MOVING EAST
AT 30 MPH. THIS IS A DANGEROUS STORM WITH STRONG LOW LEVEL
ROTATION...A TORNADO IS OCCURRING OR COULD FORM AT ANY TIME. IN
ADDITION TO A TORNADO...THIS SEVEVE THUNDERSTORM IS ALSO CAPABLE
OF PRODUCING HAIL UP TO BASEBALL SIZE.
* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
WHITESBORO...MUSE...OCTAVIA AND BIG CEDAR.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE NEAR THE PATH OF THIS STORM...TAKE COVER NOW! IF NO
UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE
SUBSTANTIAL SHELTER. AVOID WINDOWS!
&&
LAT...LON 3470 9503 3476 9445 3462 9445 3451 9445
3450 9446 3451 9502
TIME...MOT...LOC 2250Z 258DEG 28KT 3449 9508
$$3 follow-up statements
028
WWUS54 KTSA 192310
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
610 PM CDT TUE APR 19 2011
OKC079-127-192345-
/O.CON.KTSA.TO.W.0044.000000T0000Z-110419T2345Z/
LE FLORE OK-PUSHMATAHA OK-
610 PM CDT TUE APR 19 2011
...TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR
NORTHEASTERN PUSHMATAHA AND SOUTHERN LE FLORE COUNTIES...
AT 606 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO LOCATED NEAR HONOBIA...
MOVING EAST AT 30 MPH. THIS IS A DANGEROUS STORM WITH STRONG LOW
LEVEL ROTATION...A TORNADO IS OCCURRING OR COULD FORM AT ANY TIME.
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
HANOBIA...MUSE...OCTAVIA AND BIG CEDAR.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE NEAR THE PATH OF THIS STORM...TAKE COVER NOW! IF NO
UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE
SUBSTANTIAL SHELTER. AVOID WINDOWS!
&&
LAT...LON 3465 9503 3476 9445 3451 9445 3450 9446
3451 9502
TIME...MOT...LOC 2310Z 258DEG 28KT 3454 9493
$$027
WWUS54 KTSA 192319
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
619 PM CDT TUE APR 19 2011
OKC127-192329-
/O.CAN.KTSA.TO.W.0044.000000T0000Z-110419T2345Z/
PUSHMATAHA OK-
619 PM CDT TUE APR 19 2011
...THE TORNADO WARNING FOR NORTHEASTERN PUSHMATAHA COUNTY IS
CANCELLED...
LAT...LON 3451 9493 3467 9494 3476 9445 3451 9445
3450 9446
TIME...MOT...LOC 2319Z 258DEG 28KT 3455 9485
$$
OKC079-192345-
/O.CON.KTSA.TO.W.0044.000000T0000Z-110419T2345Z/
LE FLORE OK-
619 PM CDT TUE APR 19 2011
...TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR SOUTHERN LE
FLORE COUNTY...
AT 616 PM CDT...NWS METEOROLOGISTS AND STORM SPOTTERS CONTINUED TO
TRACK A VERY DANGEROUS TORNADO LOCATED 10 MILES WEST OF OCTAVIA...
MOVING EAST AT 30 MPH. A TORNADO HAS BEEN CONFIRMED...TAKE COVER NOW!
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...MUSE...
OCTAVIA AND BIG CEDAR.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF YOU ARE NEAR THE PATH OF THIS STORM...TAKE COVER NOW! IF NO
UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE
SUBSTANTIAL SHELTER. AVOID WINDOWS!
&&
LAT...LON 3451 9493 3467 9494 3476 9445 3451 9445
3450 9446
TIME...MOT...LOC 2319Z 258DEG 28KT 3455 9485
$$548
WWUS54 KTSA 192328
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
628 PM CDT TUE APR 19 2011
OKC079-192345-
/O.CON.KTSA.TO.W.0044.000000T0000Z-110419T2345Z/
LE FLORE OK-
628 PM CDT TUE APR 19 2011
...TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR SOUTHERN LE
FLORE COUNTY...
AT 626 PM CDT...NWS METEOROLOGIST AND STORM SPOTTERS CONTINUED TO
TRACK A LARGE AND EXTREMELY DANGEROUS TORNADO LOCATED NEAR OCTAVIA...
MOVING EAST AT 35 MPH. A LARGE TORNADO IS ON THE GROUND...THIS IS A
LIFE THREATENING SITUATION...TAKE COVER IMMEDIATELY!
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...OCTAVIA
AND BIG CEDAR.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A LARGE AND EXTREMELY DANGEROUS TORNADO IS ON THE GROUND! THIS IS A
LIFE THREATENING SITUATION!
IF YOU ARE IN THE PATH OF THIS TORNADO...TAKE COVER IMMEDIATELY! IF
NO UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE
LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE
SUBSTANTIAL SHELTER. AVOID WINDOWS!
&&
LAT...LON 3451 9483 3468 9488 3476 9445 3451 9445
3450 9446
TIME...MOT...LOC 2328Z 267DEG 31KT 3453 9473
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 19, 3:46 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg, Pushmataha | 59 min |
| Apr 19, 3:58 PM CDT | Tornado Warning | TSA | Pushmataha | 62 min |
| Apr 19, 4:12 PM CDT | Special Weather Statement | TSA | Sequoyah | 33 min |
| Apr 19, 4:55 PM CDT | Tornado Warning | TSA | Pushmataha | 65 min |
| Apr 19, 5:01 PM CDT | Special Weather Statement | TSA | Choctaw | 59 min |
| Apr 19, 5:40 PM CDT | Severe Thunderstorm Warning | TSA | Latimer, Pushmataha | 35 min |
| Apr 19, 6:07 PM CDT | Severe Thunderstorm Warning | TSA | Latimer, LeFlore, Pushmataha | 53 min |
| Apr 19, 6:44 PM CDT | Tornado Warning | TSA | LeFlore | 31 min |
Nearby
Tornado Warnings in Oklahoma, 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.