Alert archive / Oklahoma / Special Weather Statements in 2021
Special Weather Statement, NWS Tulsa, OK
NWS Tulsa, OK issued this special weather statement at Jul 31, 2021, 9:13 PM CDT for Osage 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
- Jul 31, 2021, 9:13 PM CDT (02:13 UTC)
- Expired
- Jul 31, 2021, 10:00 PM CDT
- In force
- 47 min
- Issued by
- NWS Tulsa, OK
County Osage County, OK
The radar
The Tulsa radar (KINX), 99 km from the middle of the area, began a volume at 02:17 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, 2.2 hours before the alert went out and 211 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
- 2653 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 1449 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
183 WWUS84 KTSA 010213 SPSTSA Special Weather Statement National Weather Service Tulsa OK 913 PM CDT Sat Jul 31 2021 OKZ054-055-010300- Osage OK-Washington OK- 913 PM CDT Sat Jul 31 2021 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN OSAGE AND NORTHWESTERN WASHINGTON COUNTIES UNTIL 1000 PM CDT... At 913 PM CDT, strong thunderstorms were located along a line extending from near Peru to 6 miles northeast of Foraker. Movement was south at 25 mph. Penny size hail and wind gusts up to 50 mph will be possible with these storms. Locations in or near the path include... Copan... Elgin... Foraker... Bigheart... Pearsonia... Hulah... Sunset Lake... Wah Sha She State Park... 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 3700 9593 3688 9588 3669 9654 3700 9661 TIME...MOT...LOC 0213Z 348DEG 21KT 3709 9607 3696 9651 $$
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 10:00 PM CDT | Special Weather Statement | TSA | Osage, Washington | 45 min |
| Aug 1, 12:23 AM CDT | Special Weather Statement | TSA | Pawnee | 52 min |
| Aug 1, 12:51 PM CDT | Special Weather Statement | TSA | Pushmataha | 24 min |
| Aug 1, 1:19 PM CDT | Severe Thunderstorm Warning | TSA | Choctaw, Pushmataha | 37 min |
| Aug 1, 1:52 PM CDT | Special Weather Statement | TSA | LeFlore | 23 min |
| Aug 1, 1:54 PM CDT | Special Weather Statement | TSA | Pushmataha | 36 min |
| Aug 1, 2:33 PM CDT | Special Weather Statement | TSA | LeFlore | 42 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.