Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 57, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Apr 29, 2012, 4:29 AM CDT for Osage County, Tulsa County, Washington County, Oklahoma. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 29, 2012, 4:29 AM CDT (09:29 UTC)
- Expired
- Apr 29, 2012, 5:15 AM CDT
- In force
- 46 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
Counties Osage County, OK, Tulsa County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 72 km from the middle of the area, began a volume at 09:30 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.
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 28, 11:52 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Lamont, OK (KLMN), launched 00:00Z, 9.5 hours before the alert went out and 130 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
- 167 J/kg
- Mixed-layer CIN
- -203 J/kg
- Mixed-layer LCL
- 868 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 228 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
The text
As transmitted, in the capitals the NWS used until 2016.
401
WUUS54 KTSA 290929
SVRTSA
OKC113-143-147-291015-
/O.NEW.KTSA.SV.W.0057.120429T0929Z-120429T1015Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
429 AM CDT SUN APR 29 2012
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN OSAGE COUNTY IN NORTHEAST OKLAHOMA
NORTHERN TULSA COUNTY IN NORTHEAST OKLAHOMA
WASHINGTON COUNTY IN NORTHEAST OKLAHOMA
* UNTIL 515 AM CDT
* AT 425 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED 5 MILES NORTHEAST
OF HOMINY...MOVING NORTHEAST AT 55 MPH.
STORM HAZARDS INCLUDE...
QUARTER SIZE HAIL...
WIND GUSTS TO 60 MPH...
* SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
SKIATOOK...AVANT...PAWHUSKA...BARNSDALL...VERA...RAMONA...
OCHELATA...OSAGE HILLS STATE PARK...OKESA...BARTLESVILLE...DEWEY
AND COPAN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A
STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
&&
LAT...LON 3700 9583 3639 9585 3624 9634 3659 9647
3700 9587
TIME...MOT...LOC 0930Z 219DEG 50KT 3650 9625
$$1 follow-up statement
981
WWUS54 KTSA 290954
SVSTSA
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
454 AM CDT SUN APR 29 2012
OKC143-291004-
/O.CAN.KTSA.SV.W.0057.000000T0000Z-120429T1015Z/
TULSA OK-
454 AM CDT SUN APR 29 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN TULSA COUNTY IS
CANCELLED...
LAT...LON 3653 9605 3665 9622 3698 9588 3695 9583
3671 9584
TIME...MOT...LOC 0954Z 222DEG 39KT 3666 9606
$$
OKC113-147-291015-
/O.CON.KTSA.SV.W.0057.000000T0000Z-120429T1015Z/
OSAGE OK-WASHINGTON OK-
454 AM CDT SUN APR 29 2012
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 AM CDT FOR
WASHINGTON AND EASTERN OSAGE COUNTIES...
AT 452 AM CDT...A SEVERE THUNDERSTORM WAS LOCATED 6 MILES SOUTHEAST
OF OKESA...MOVING NORTHEAST AT 45 MPH.
STORM HAZARDS INCLUDE...
QUARTER SIZE HAIL...
WIND GUSTS TO 60 MPH...
SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...
BARTLESVILLE...DEWEY AND COPAN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A
STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
&&
LAT...LON 3653 9605 3665 9622 3698 9588 3695 9583
3671 9584
TIME...MOT...LOC 0954Z 222DEG 39KT 3666 9606
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 12:13 AM CDT | Special Weather Statement | TSA | Creek | 47 min |
| Apr 29, 1:00 AM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 45 min |
| Apr 29, 1:43 AM CDT | Severe Thunderstorm Warning | TSA | Creek, Pawnee | 30 min |
| Apr 29, 1:47 AM CDT | Special Weather Statement | TSA | Pawnee | 43 min |
| Apr 29, 2:16 AM CDT | Special Weather Statement | TSA | Pawnee | 29 min |
| Apr 29, 2:35 AM CDT | Special Weather Statement | TSA | Pawnee | 40 min |
| Apr 29, 2:43 AM CDT | Severe Thunderstorm Warning | TSA | Creek, Osage, Pawnee | 32 min |
| Apr 29, 3:12 AM CDT | Special Weather Statement | TSA | Washington | 33 min |
| Apr 29, 4:17 AM CDT | Special Weather Statement | TSA | Osage, Washington | 43 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2012Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.