Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 89, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Apr 19, 2011, 6:07 PM CDT for Latimer County, LeFlore County, Pushmataha County, Oklahoma. It was in force for 53 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
- Apr 19, 2011, 6:07 PM CDT (23:07 UTC)
- Expired
- Apr 19, 2011, 7:00 PM CDT
- In force
- 53 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
Counties Latimer County, OK, LeFlore County, OK, Pushmataha County, OK
The radar
The Western Arkansas radar (KSRX), 60 km from the middle of the area, began a volume at 23:06 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, 6:15 PM CDT | HAIL 2.5 | 5 S Talihina, 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
Springfield, MO (KSGF), launched 12:00Z, 11.1 hours before the alert went out and 243 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
- 2616 J/kg
- Mixed-layer CIN
- -284 J/kg
- Mixed-layer LCL
- 820 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 583 m²/s²
- 0-3 km storm-relative helicity
- 584 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.6
The text
As transmitted, in the capitals the NWS used until 2016.
142 WUUS54 KTSA 192307 SVRTSA OKC077-079-127-200000- /O.NEW.KTSA.SV.W.0089.110419T2307Z-110420T0000Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 607 PM CDT TUE APR 19 2011 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN LATIMER COUNTY IN SOUTHEAST OKLAHOMA SOUTHERN LE FLORE COUNTY IN SOUTHEAST OKLAHOMA NORTHEASTERN PUSHMATAHA COUNTY IN SOUTHEAST OKLAHOMA * UNTIL 700 PM CDT * AT 606 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR ALBION... MOVING NORTHEAST AT 40 MPH. STORM HAZARDS INCLUDE... DAMAGING GOLF BALL SIZE HAIL... WIND GUSTS TO 60 MPH... * SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE... TALIHINA...WHITESBORO...HEAVENER AND HOWE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. IF YOU ARE NEAR THE PATH OF THIS STORM...BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS. TAKE COVER ON THE LOWEST FLOOR IN AN INTERIOR ROOM AND STAY AWAY FROM WINDOWS. && LAT...LON 3507 9445 3476 9445 3462 9514 3473 9521 TIME...MOT...LOC 2307Z 244DEG 35KT 3467 9510 $$
2 follow-up statements
952 WWUS54 KTSA 192318 SVSTSA SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 618 PM CDT TUE APR 19 2011 OKC077-079-127-200000- /O.CON.KTSA.SV.W.0089.000000T0000Z-110420T0000Z/ LE FLORE OK-PUSHMATAHA OK-LATIMER OK- 618 PM CDT TUE APR 19 2011 ...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR SOUTHEASTERN LATIMER...NORTHEASTERN PUSHMATAHA AND SOUTHERN LE FLORE COUNTIES... AT 616 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR ALBION... MOVING NORTHEAST AT 40 MPH. AT 615 PM...TENNIS BALL SIZE HAIL WAS REPORTED 5 MILES SOUTH OF TALIHINA BY THE PUBLIC. STORM HAZARDS INCLUDE... DESTRUCTIVE BASEBALL SIZE HAIL... WIND GUSTS TO 60 MPH... SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE... WHITESBORO...HODGEN...HEAVENER AND HOWE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. IF YOU ARE NEAR THE PATH OF THIS STORM...YOU SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AND BE READY TO ACT QUICKLY. PERSONS NEAR THE PATH OF THIS DANGEROUS STORM SHOULD PREPARE FOR LARGE DESTRUCTIVE HAIL. && LAT...LON 3507 9445 3476 9445 3462 9514 3473 9521 TIME...MOT...LOC 2317Z 244DEG 35KT 3469 9502 $$
601
WWUS54 KTSA 192348
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
648 PM CDT TUE APR 19 2011
OKC077-127-192358-
/O.CAN.KTSA.SV.W.0089.000000T0000Z-110420T0000Z/
PUSHMATAHA OK-LATIMER OK-
648 PM CDT TUE APR 19 2011
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LATIMER AND
NORTHEASTERN PUSHMATAHA COUNTIES IS CANCELLED...
LAT...LON 3469 9494 3469 9504 3478 9506 3478 9505
3500 9445 3476 9445 3466 9494
TIME...MOT...LOC 2348Z 244DEG 35KT 3482 9469
$$
OKC079-200000-
/O.CON.KTSA.SV.W.0089.000000T0000Z-110420T0000Z/
LE FLORE OK-
648 PM CDT TUE APR 19 2011
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR
SOUTHERN LE FLORE COUNTY...
AT 644 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 6 MILES SOUTHWEST
OF HODGEN...MOVING NORTHEAST AT 40 MPH. ANOTHER SEVERE STORM WAS
NEAR MUSE...MOVING NORTHEAST AT 40 MPH.
STORM HAZARDS INCLUDE...
DAMAGING GOLF BALL SIZE HAIL...
WIND GUSTS TO 60 MPH...
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...HODGEN AND
HEAVENER.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. IF YOU ARE NEAR THE PATH
OF THIS STORM...YOU SHOULD BE ALERT FOR RAPIDLY CHANGING WEATHER
CONDITIONS AND BE READY TO ACT QUICKLY.
&&
LAT...LON 3469 9494 3469 9504 3478 9506 3478 9505
3500 9445 3476 9445 3466 9494
TIME...MOT...LOC 2348Z 244DEG 35KT 3482 9469
$$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, 5:51 PM CDT | Tornado Warning | TSA | LeFlore, Pushmataha | 54 min |
| Apr 19, 6:44 PM CDT | Tornado Warning | TSA | LeFlore | 31 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 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.