Alert archive / Oklahoma / Special Weather Statements in 2012
Special Weather Statement, NWS Tulsa, OK
NWS Tulsa, OK issued this special weather statement at Aug 19, 2012, 3:21 PM CDT for Adair County, Cherokee County, Oklahoma. It was in force for 24 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
- Aug 19, 2012, 3:21 PM CDT (20:21 UTC)
- Expired
- Aug 19, 2012, 3:45 PM CDT
- In force
- 24 min
- Issued by
- NWS Tulsa, OK
Counties Adair County, OK, Cherokee County, OK
The radar
The Western Arkansas radar (KSRX), 51 km from the middle of the area, began a volume at 20:23 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 nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 8.4 hours before the alert went out and 145 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
- 478 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 975 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
312
WWUS84 KTSA 192021
SPSTSA
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
321 PM CDT SUN AUG 19 2012
ARZ010-019-OKZ068-069-192045-
ADAIR OK-CHEROKEE OK-CRAWFORD AR-WASHINGTON AR-
321 PM CDT SUN AUG 19 2012
...SIGNIFICANT WEATHER ADVISORY...
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 345 PM CDT
FOR THE FOLLOWING COUNTIES...
IN NORTHWEST ARKANSAS
NORTHERN CRAWFORD AND SOUTHWESTERN WASHINGTON
IN EAST CENTRAL OKLAHOMA
SOUTHEASTERN CHEROKEE
IN NORTHEAST OKLAHOMA
SOUTHERN ADAIR
AT 322 PM CDT...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 4 MILES SOUTHEAST OF TAHLEQUAH TO 4 MILES NORTHWEST OF
MARIETTA TO ODELL...MOVING SOUTHEAST AT 15 MPH. SOME LOCATIONS THAT
WILL BE AFFECTED BY THESE STORMS INCLUDE...MARIETTA...STILWELL...
BUNCH...TAHLEQUAH...COOKSON...ELDON...ODELL...STRICKLER...MORROW...
MOUNTAINBURG...NATURAL DAM...CHESTER...LEE CREEK...CHEROKEE LANDING
STATE PARK...ADAIR STATE PARK AND DEVILS DEN STATE PARK.
THESE STORMS WILL BE CAPABLE OF PRODUCING PENNY SIZE HAIL AND WIND
GUSTS TO 40 MPH.
LAT...LON 3558 9407 3564 9440 3564 9497 3591 9505
3595 9478 3583 9427
TIME...MOT...LOC 2022Z 313DEG 13KT 3585 9493 3589 9469
3577 9439
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 2:33 PM CDT | Special Weather Statement | TSA | Cherokee | 27 min |
| Aug 19, 2:57 PM CDT | Special Weather Statement | TSA | Adair, Cherokee | 33 min |
| Aug 19, 3:30 PM CDT | Special Weather Statement | TSA | Sequoyah | 30 min |
| Aug 19, 3:43 PM CDT | Special Weather Statement | TSA | Wagoner | 32 min |
| Aug 19, 3:57 PM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 33 min |
| Aug 19, 4:26 PM CDT | Special Weather Statement | TSA | Sequoyah | 34 min |
| Aug 19, 5:43 PM CDT | Special Weather Statement | TSA | Haskell | 32 min |
| Aug 19, 2:35 PM CDT | Special Weather Statement | TSA | Madison | 25 min |
| Aug 19, 2:47 PM CDT | Special Weather Statement | TSA | Franklin | 28 min |
| Aug 19, 3:06 PM CDT | Special Weather Statement | TSA | Crawford | 24 min |
| Aug 19, 3:46 PM CDT | Special Weather Statement | TSA | Crawford | 29 min |
Nearby
Special Weather Statements in Oklahoma, 2012Every special weather statement 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.