Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 211, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Aug 12, 2012, 9:57 PM CDT for Haskell County, Muskogee County, Oklahoma. It was in force for 48 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
- Aug 12, 2012, 9:57 PM CDT (02:57 UTC)
- Expired
- Aug 12, 2012, 10:45 PM CDT
- In force
- 48 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
Counties Haskell County, OK, Muskogee County, OK
The radar
The Western Arkansas radar (KSRX), 66 km from the middle of the area, began a volume at 02:57 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 |
|---|---|---|---|
| Aug 12, 10:05 PM CDT | HAIL 1.75 | 4 E Porum, 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 |
|---|---|---|---|
| Aug 12, 7:16 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 3.0 hours before the alert went out and 210 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3359 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 19 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
809 WUUS54 KTSA 130257 SVRTSA OKC061-101-130345- /O.NEW.KTSA.SV.W.0211.120813T0257Z-120813T0345Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 957 PM CDT SUN AUG 12 2012 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHEASTERN MUSKOGEE COUNTY IN EAST CENTRAL OKLAHOMA NORTHERN HASKELL COUNTY IN SOUTHEAST OKLAHOMA * UNTIL 1045 PM CDT * AT 951 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR PORUM... MOVING EAST AT 15 MPH. STORM HAZARDS INCLUDE... QUARTER SIZE HAIL... WIND GUSTS TO 60 MPH... * SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...TAMAHA. 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 3522 9496 3531 9532 3544 9530 3539 9492 TIME...MOT...LOC 0257Z 279DEG 13KT 3536 9523 $$
1 follow-up statement
583 WWUS54 KTSA 130311 SVSTSA SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 1011 PM CDT SUN AUG 12 2012 OKC061-101-130345- /O.CON.KTSA.SV.W.0211.000000T0000Z-120813T0345Z/ HASKELL OK-MUSKOGEE OK- 1011 PM CDT SUN AUG 12 2012 ...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT FOR SOUTHEASTERN MUSKOGEE AND NORTHERN HASKELL COUNTIES... AT 1009 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 12 MILES NORTHWEST OF KANIMA...MOVING EAST AT 15 MPH. STORM HAZARDS INCLUDE... HALF DOLLAR SIZE HAIL... WIND GUSTS TO 60 MPH... SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...KANIMA. PRECAUTIONARY/PREPAREDNESS ACTIONS... PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. && LAT...LON 3530 9523 3540 9522 3539 9492 3522 9496 TIME...MOT...LOC 0311Z 279DEG 13KT 3536 9520 $$
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 7:14 PM CDT | Special Weather Statement | TSA | Pushmataha | 46 min |
| Aug 12, 7:42 PM CDT | Severe Thunderstorm Warning | TSA | Pushmataha | 33 min |
| Aug 12, 7:48 PM CDT | Severe Thunderstorm Warning | TSA | Choctaw, Pushmataha | 57 min |
| Aug 12, 7:57 PM CDT | Severe Thunderstorm Warning | TSA | Pushmataha | 47 min |
| Aug 12, 8:36 PM CDT | Special Weather Statement | TSA | McIntosh | 24 min |
| Aug 12, 8:42 PM CDT | Severe Thunderstorm Warning | TSA | Pushmataha | 34 min |
| Aug 12, 9:50 PM CDT | Severe Thunderstorm Warning | TSA | Muskogee | 40 min |
| Aug 12, 10:14 PM CDT | Special Weather Statement | TSA | Adair | 31 min |
| Aug 12, 10:21 PM CDT | Severe Thunderstorm Warning | TSA | Craig | 54 min |
| Aug 12, 10:27 PM CDT | Severe Thunderstorm Warning | TSA | Muskogee, Sequoyah | 48 min |
| Aug 12, 10:28 PM CDT | Severe Thunderstorm Warning | TSA | Adair | 47 min |
| Aug 12, 10:41 PM CDT | Severe Thunderstorm Warning | TSA | Haskell | 12 min |
| Aug 12, 10:42 PM CDT | Special Weather Statement | TSA | Delaware | 33 min |
| Aug 12, 10:57 PM CDT | Special Weather Statement | TSA | Ottawa | 33 min |
| Aug 12, 11:05 PM CDT | Severe Thunderstorm Warning | TSA | Ottawa | 25 min |
| Aug 12, 11:11 PM CDT | Severe Thunderstorm Warning | TSA | Adair | 37 min |
| Aug 12, 11:16 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Mayes | 13 min |
| Aug 12, 11:30 PM CDT | Severe Thunderstorm Warning | TSA | Adair, Delaware | 25 min |
| Aug 13, 12:29 AM CDT | Special Weather Statement | TSA | Delaware | 46 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.