Alert archive / Oklahoma / Special Weather Statements in 2020
Special Weather Statement, NWS Tulsa, OK
NWS Tulsa, OK issued this special weather statement at Aug 6, 2020, 6:13 PM CDT for Sequoyah County, Oklahoma. It was in force for 47 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 6, 2020, 6:13 PM CDT (23:13 UTC)
- Expired
- Aug 6, 2020, 7:00 PM CDT
- In force
- 47 min
- Issued by
- NWS Tulsa, OK
County Sequoyah County, OK
The radar
The Western Arkansas radar (KSRX), 44 km from the middle of the area, began a volume at 23:12 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, 11.2 hours before the alert went out and 190 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
- 47 J/kg
- Mixed-layer CIN
- -283 J/kg
- Mixed-layer LCL
- 1009 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 86 m²/s²
- 0-3 km storm-relative helicity
- 122 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
478
WWUS84 KTSA 062313
SPSTSA
Special Weather Statement
National Weather Service Tulsa OK
613 PM CDT Thu Aug 6 2020
OKZ072-074-070000-
Haskell OK-Sequoyah OK-
613 PM CDT Thu Aug 6 2020
...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN HASKELL AND WESTERN
SEQUOYAH COUNTIES UNTIL 700 PM CDT...
At 613 PM CDT, a strong thunderstorm was located 3 miles southeast of
Lake Tenkiller State Park, moving southeast at 25 mph.
Winds in excess of 40 mph will be possible with this storm.
Locations in or near the path include...
Sallisaw... Vian...
Gans... Tamaha...
Lake Tenkiller State Park... Mc Key...
Box...
This includes Interstate 40 in Oklahoma between mile markers 291 and
308.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3535 9466 3534 9471 3536 9474 3536 9477
3533 9479 3532 9481 3531 9482 3528 9497
3559 9511 3564 9497 3564 9493
TIME...MOT...LOC 2313Z 324DEG 22KT 3557 9499
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 3:58 PM CDT | Special Weather Statement | TSA | Wagoner | 47 min |
| Aug 6, 4:36 PM CDT | Special Weather Statement | TSA | Cherokee | 24 min |
| Aug 6, 4:54 PM CDT | Special Weather Statement | TSA | Cherokee | 36 min |
| Aug 6, 5:12 PM CDT | Severe Thunderstorm Warning | TSA | Adair, Cherokee | 48 min |
| Aug 6, 5:35 PM CDT | Special Weather Statement | TSA | Muskogee | 40 min |
| Aug 6, 5:42 PM CDT | Special Weather Statement | TSA | Sequoyah | 33 min |
| Aug 6, 6:10 PM CDT | Special Weather Statement | TSA | Sequoyah | 50 min |
| Aug 6, 6:23 PM CDT | Special Weather Statement | TSA | Crawford, Franklin | 52 min |
Nearby
Special Weather Statements in Oklahoma, 2020Every special weather statement in 2020
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.