Alert archive / Oklahoma / Tornado Warnings in 2012
Tornado Warning 9, NWS Tulsa, OK
NWS Tulsa, OK issued this tornado warning at Apr 15, 2012, 5:51 AM CDT for 5 counties in Oklahoma. It was in force for 24 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 15, 2012, 5:51 AM CDT (10:51 UTC)
- Expired
- Apr 15, 2012, 6:15 AM CDT
- In force
- 24 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
Counties Nowata County, OK, Osage County, OK, Rogers County, OK, Tulsa County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 52 km from the middle of the area, began a volume at 10:52 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 15, 5:55 AM CDT | TSTM WND DMG | 1 Ssw Skiatook, OK | UNKNOWN DAMAGE AT THE AIRPORT. PROBABLE TORNADO. RELAYED BY KOTV. TIME ESTIMATED VIA RADAR. |
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 15, 1:37 AM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Lamont, OK (KLMN), launched 00:00Z, 10.9 hours before the alert went out and 146 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
- 2195 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 863 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 335 m²/s²
- 0-3 km storm-relative helicity
- 436 m²/s²
- Significant tornado parameter
- 5.9
- Supercell composite
- 19.0
The text
As transmitted, in the capitals the NWS used until 2016.
614 WFUS54 KTSA 151051 TORTSA OKC105-113-131-143-147-151115- /O.NEW.KTSA.TO.W.0009.120415T1051Z-120415T1115Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE TULSA OK 551 AM CDT SUN APR 15 2012 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * TORNADO WARNING FOR... SOUTHERN NOWATA COUNTY IN NORTHEAST OKLAHOMA SOUTHEASTERN OSAGE COUNTY IN NORTHEAST OKLAHOMA NORTHWESTERN ROGERS COUNTY IN NORTHEAST OKLAHOMA NORTHERN TULSA COUNTY IN NORTHEAST OKLAHOMA WASHINGTON COUNTY IN NORTHEAST OKLAHOMA * UNTIL 615 AM CDT * AT 550 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO WAS LOCATED 4 MILES SOUTHWEST OF SKIATOOK...MOVING NORTHEAST AT 60 MPH. * SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE... SKIATOOK...VERA...RAMONA...TALALA...WATOVA...DELAWARE AND NOWATA. 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 3684 9573 3669 9551 3621 9604 3632 9621 TIME...MOT...LOC 1051Z 219DEG 53KT 3634 9605 $$
1 follow-up statement
953
WWUS54 KTSA 151059
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
559 AM CDT SUN APR 15 2012
OKC105-151109-
/O.CAN.KTSA.TO.W.0009.000000T0000Z-120415T1115Z/
NOWATA OK-
559 AM CDT SUN APR 15 2012
...THE TORNADO WARNING FOR SOUTHERN NOWATA COUNTY IS CANCELLED...
LAT...LON 3629 9596 3642 9606 3661 9582 3651 9571
3630 9595
TIME...MOT...LOC 1059Z 230DEG 33KT 3638 9598
$$
OKC113-131-143-147-151115-
/O.CON.KTSA.TO.W.0009.000000T0000Z-120415T1115Z/
OSAGE OK-ROGERS OK-TULSA OK-WASHINGTON OK-
559 AM CDT SUN APR 15 2012
...TORNADO WARNING REMAINS IN EFFECT UNTIL 615 AM CDT FOR
WASHINGTON...NORTHERN TULSA...NORTHWESTERN ROGERS AND SOUTHEASTERN
OSAGE COUNTIES...
AT 558 AM CDT...DOPPLER RADAR CONTINUED TO INDICATE A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING A TORNADO LOCATED NEAR SKIATOOK...
MOVING NORTHEAST AT 40 MPH.
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...VERA AND
RAMONA.
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 3629 9596 3642 9606 3661 9582 3651 9571
3630 9595
TIME...MOT...LOC 1059Z 230DEG 33KT 3638 9598
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 12:40 AM CDT | Wind Advisory | TSA | Creek, Okfuskee, Okmulgee, Pawnee, Tulsa, Washington | 3 hr |
| Apr 15, 3:41 AM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 64 min |
| Apr 15, 4:43 AM CDT | Severe Thunderstorm Warning | TSA | Creek, Osage, Pawnee | 62 min |
| Apr 15, 5:05 AM CDT | Special Weather Statement | TSA | Creek | 55 min |
| Apr 15, 5:30 AM CDT | Severe Thunderstorm Warning | TSA | Creek, Nowata, Osage, Pawnee, Rogers, Tulsa and 1 more | 60 min |
| Apr 15, 5:47 AM CDT | Special Weather Statement | TSA | Okfuskee, Okmulgee, Rogers, Tulsa | 58 min |
| Apr 15, 6:22 AM CDT | Severe Thunderstorm Warning | TSA | Craig, Mayes, Nowata, Ottawa, Rogers | 53 min |
| Apr 15, 6:41 AM CDT | Special Weather Statement | TSA | Mayes, Okmulgee, Wagoner | 64 min |
| Apr 15, 6:43 AM CDT | Special Weather Statement | TSA | McIntosh, Pittsburg | 62 min |
| Apr 15, 7:41 AM CDT | Special Weather Statement | TSA | Delaware | 34 min |
| Apr 15, 7:44 AM CDT | Special Weather Statement | TSA | McIntosh, Muskogee, Pittsburg, Wagoner | 31 min |
| Apr 15, 8:13 AM CDT | Special Weather Statement | TSA | Cherokee, Delaware, Muskogee | 62 min |
| Apr 15, 8:14 AM CDT | Special Weather Statement | TSA | Haskell, Latimer, Pittsburg, Pushmataha, Sequoyah | 61 min |
| Apr 15, 9:13 AM CDT | Severe Thunderstorm Warning | TSA | Adair, Cherokee, Muskogee | 62 min |
| Apr 15, 9:16 AM CDT | Tornado Warning | TSA | Adair, Cherokee | 29 min |
| Apr 15, 9:42 AM CDT | Tornado Warning | TSA | Adair | 33 min |
| Apr 15, 11:28 AM CDT | Special Weather Statement | TSA | LeFlore | 62 min |
| Apr 15, 12:42 PM CDT | River Flood Warning | TSA | Rogers, Tulsa | 7 hr |
Nearby
Tornado Warnings in Oklahoma, 2012Every tornado warning in 2012Tornadoes 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.