Alert archive / Oklahoma / Special Weather Statements in 2021
Special Weather Statement, NWS Tulsa, OK
NWS Tulsa, OK issued this special weather statement at Mar 22, 2021, 11:30 PM CDT for 5 counties in Oklahoma. It was in force for 60 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
- Mar 22, 2021, 11:30 PM CDT (04:30 UTC)
- Expired
- Mar 23, 2021, 12:30 AM CDT
- In force
- 60 min
- Issued by
- NWS Tulsa, OK
Counties Adair County, OK, Cherokee County, OK, Delaware County, OK, Mayes County, OK, Sequoyah County, OK
The radar
The Western Arkansas radar (KSRX), 50 km from the middle of the area, began a volume at 04:31 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 00:00Z, 4.5 hours before the alert went out and 170 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
- 1539 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 111 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
879
WWUS84 KTSA 230430
SPSTSA
Special Weather Statement
National Weather Service Tulsa OK
1130 PM CDT Mon Mar 22 2021
ARZ001-010-019-OKZ062-063-068-069-072-074-230530-
Benton AR-Washington AR-Crawford AR-Haskell OK-Adair OK-Sequoyah OK-
Cherokee OK-Delaware OK-Mayes OK-
1130 PM CDT Mon Mar 22 2021
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN BENTON...
NORTHWESTERN CRAWFORD...SOUTHWESTERN WASHINGTON...DELAWARE...
NORTHEASTERN HASKELL...SEQUOYAH...SOUTHEASTERN MAYES...ADAIR AND
CHEROKEE COUNTIES UNTIL 1230 AM CDT...
At 1129 PM CDT, strong thunderstorms were located along a line
extending from 2 miles southwest of Salina to 5 miles south of
Tahlequah to 4 miles west of Keota. Movement was east at 30 mph.
Winds in excess of 40 mph will be possible with these storms.
Locations in or near the path include...
Fort Smith... Van Buren...
Tahlequah... Siloam Springs...
Sallisaw... Stilwell...
Jay... Natural Dam...
Muldrow... Roland...
Lincoln... Westville...
Vian... Locust Grove...
Salina... West Siloam Springs...
Colcord... Kansas...
Hulbert... Keota...
This includes the following highways,
Interstate 40 in Arkansas between mile markers 0 and 2.
Interstate 40 in Oklahoma between mile markers 290 and 328.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3596 9438 3545 9439 3545 9441 3537 9444
3538 9447 3536 9449 3531 9468 3535 9473
3536 9477 3532 9481 3528 9482 3523 9503
3545 9507 3546 9505 3546 9508 3572 9513
3581 9513 3581 9515 3631 9528 3652 9464
TIME...MOT...LOC 0429Z 252DEG 28KT 3626 9519 3584 9499 3526 9500
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 22, 9:18 PM CDT | Special Weather Statement | TSA | Okfuskee | 27 min |
| Mar 22, 9:20 PM CDT | Special Weather Statement | TSA | Pittsburg | 25 min |
| Mar 22, 10:01 PM CDT | Special Weather Statement | TSA | Tulsa | 29 min |
| Mar 22, 10:35 PM CDT | Special Weather Statement | TSA | Pushmataha | 55 min |
| Mar 22, 10:48 PM CDT | Special Weather Statement | TSA | Cherokee, Haskell, Muskogee, Wagoner | 42 min |
| Mar 22, 11:19 PM CDT | Special Weather Statement | TSA | Craig, Nowata, Rogers | 26 min |
| Mar 23, 3:05 AM CDT | Special Weather Statement | TSA | Osage, Pawnee | 55 min |
| Mar 23, 3:23 AM CDT | Special Weather Statement | TSA | Creek | 52 min |
Nearby
Special Weather Statements in Oklahoma, 2021Every special weather statement in 2021
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.