Alert archive / Oklahoma / Tornado Warnings in 2011
Tornado Warning 65, NWS Tulsa, OK
NWS Tulsa, OK issued this tornado warning at May 22, 2011, 6:42 PM CDT for 4 counties in Oklahoma. It was in force for 33 min. 3 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
- May 22, 2011, 6:42 PM CDT (23:42 UTC)
- Expired
- May 22, 2011, 7:15 PM CDT
- In force
- 33 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
Counties Cherokee County, OK, Delaware County, OK, Mayes County, OK, Wagoner County, OK
The radar
The Tulsa radar (KINX), 41 km from the middle of the area, began a volume at 23:45 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 |
|---|---|---|---|
| May 22, 6:44 PM CDT | FUNNEL CLOUD | 6 S Murphy, OK | |
| May 22, 6:50 PM CDT | TSTM WND DMG | 8 S Chouteau, OK | LARGE TREE LIMBS GREATER THAN 2 INCHES DOWN. |
| May 22, 7:10 PM CDT | HAIL 4.25 | 2 N Peggs, 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 |
|---|---|---|---|
| May 22, 1:27 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 11.7 hours before the alert went out and 144 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
- 2645 J/kg
- Mixed-layer CIN
- -122 J/kg
- Mixed-layer LCL
- 678 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 424 m²/s²
- 0-3 km storm-relative helicity
- 422 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 16.9
The text
As transmitted, in the capitals the NWS used until 2016.
018 WFUS54 KTSA 222342 TORTSA OKC021-041-097-145-230015- /O.NEW.KTSA.TO.W.0065.110522T2342Z-110523T0015Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TULSA OK 642 PM CDT SUN MAY 22 2011 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * TORNADO WARNING FOR... NORTHERN CHEROKEE COUNTY IN EAST CENTRAL OKLAHOMA SOUTHWESTERN DELAWARE COUNTY IN NORTHEAST OKLAHOMA SOUTHERN MAYES COUNTY IN NORTHEAST OKLAHOMA EASTERN WAGONER COUNTY IN NORTHEAST OKLAHOMA * UNTIL 715 PM CDT * AT 640 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO WAS LOCATED 8 MILES SOUTH OF CHOUTEAU...MOVING EAST AT 20 MPH. * SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE... CHOUTEAU...ROSE...LOCUST GROVE...PEGGS...HULBERT...TAHLEQUAH AND LEACH. 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 3634 9492 3587 9490 3599 9541 3622 9541 TIME...MOT...LOC 2342Z 268DEG 16KT 3607 9535 $$
2 follow-up statements
546 WWUS54 KTSA 222352 SVSTSA SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 652 PM CDT SUN MAY 22 2011 OKC021-041-097-145-230015- /O.CON.KTSA.TO.W.0065.000000T0000Z-110523T0015Z/ CHEROKEE OK-DELAWARE OK-MAYES OK-WAGONER OK- 652 PM CDT SUN MAY 22 2011 ...TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR EASTERN WAGONER...SOUTHERN MAYES...SOUTHWESTERN DELAWARE AND NORTHERN CHEROKEE COUNTIES... AT 649 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO LOCATED 6 MILES SOUTHWEST OF MURPHY...MOVING EAST AT 20 MPH. THIS IS A DANGEROUS STORM WITH STRONG LOW LEVEL ROTATION...A TORNADO IS OCCURRING OR COULD FORM AT ANY TIME. SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...MURPHY... ROSE...LOCUST GROVE...PEGGS...LOST CITY...HULBERT...TAHLEQUAH AND LEACH. PRECAUTIONARY/PREPAREDNESS ACTIONS... IF YOU ARE NEAR THE PATH OF THIS STORM...TAKE COVER NOW! IF NO UNDERGROUND SHELTER IS AVAILABLE MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR. MOBILE HOMES AND VEHICLES SHOULD BE ABANDONED FOR MORE SUBSTANTIAL SHELTER. AVOID WINDOWS! && LAT...LON 3623 9535 3634 9492 3587 9490 3598 9537 TIME...MOT...LOC 2352Z 268DEG 16KT 3607 9529 $$
642 WWUS54 KTSA 230004 SVSTSA SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 704 PM CDT SUN MAY 22 2011 OKC021-041-097-145-230015- /O.CON.KTSA.TO.W.0065.000000T0000Z-110523T0015Z/ CHEROKEE OK-DELAWARE OK-MAYES OK-WAGONER OK- 704 PM CDT SUN MAY 22 2011 ...TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR NORTHEASTERN WAGONER...SOUTHEASTERN MAYES...SOUTHWESTERN DELAWARE AND NORTHERN CHEROKEE COUNTIES... AT 702 PM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO LOCATED NEAR MURPHY... MOVING EAST AT 20 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...ROSE... PEGGS...LOST CITY...TAHLEQUAH AND LEACH. 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 3616 9526 3629 9492 3587 9490 3602 9527 TIME...MOT...LOC 0004Z 266DEG 15KT 3607 9522 $$
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 7:46 PM CDT | Special Weather Statement | TSA | Creek | 29 min |
| May 21, 7:54 PM CDT | Severe Thunderstorm Warning | TSA | Creek | 22 min |
| May 21, 7:58 PM CDT | Special Weather Statement | TSA | Okfuskee | 32 min |
| May 21, 8:28 PM CDT | Special Weather Statement | TSA | Creek | 32 min |
| May 21, 8:36 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Okmulgee, Tulsa | 39 min |
| May 21, 9:02 PM CDT | Special Weather Statement | TSA | Tulsa | 28 min |
| May 22, 5:17 PM CDT | Special Weather Statement | TSA | Ottawa | 28 min |
| May 22, 5:46 PM CDT | Severe Thunderstorm Warning | TSA | Ottawa | 59 min |
| May 22, 5:51 PM CDT | Special Weather Statement | TSA | Wagoner | 24 min |
| May 22, 5:54 PM CDT | Special Weather Statement | TSA | Craig | 36 min |
| May 22, 5:59 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Delaware, Mayes, Ottawa | 61 min |
| May 22, 6:03 PM CDT | Severe Thunderstorm Warning | TSA | Cherokee, Mayes, Wagoner | 57 min |
| May 22, 6:24 PM CDT | Tornado Warning | TSA | Craig, Delaware, Ottawa | 36 min |
| May 22, 6:47 PM CDT | Special Weather Statement | TSA | Okfuskee | 28 min |
| May 22, 6:52 PM CDT | Severe Thunderstorm Warning | TSA | McIntosh, Muskogee, Okmulgee | 38 min |
| May 22, 6:55 PM CDT | Tornado Warning | TSA | Delaware | 65 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.