Alert archive / Oklahoma / Special Weather Statements in 2021
Special Weather Statement, NWS Tulsa, OK
NWS Tulsa, OK issued this special weather statement at Sep 4, 2021, 3:21 PM CDT for Ottawa 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
- Sep 4, 2021, 3:21 PM CDT (20:21 UTC)
- Expired
- Sep 4, 2021, 3:45 PM CDT
- In force
- 24 min
- Issued by
- NWS Tulsa, OK
- Hail
- 0.00 in
- Wind
- 50
County Ottawa County, OK
The radar
The Tulsa radar (KINX), 86 km from the middle of the area, began a volume at 20:21 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 93 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
- 980 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 653 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 32 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
944
WWUS84 KTSA 042021
SPSTSA
Special Weather Statement
National Weather Service Tulsa OK
321 PM CDT Sat Sep 4 2021
OKZ057-058-063-042045-
Craig OK-Delaware OK-Ottawa OK-
321 PM CDT Sat Sep 4 2021
...Strong thunderstorms will impact portions of southeastern Craig,
northern Delaware and southern Ottawa Counties through 345 PM CDT...
At 321 PM CDT, Doppler radar indicated strong thunderstorms along a
line extending from 3 miles southwest of Fairland to 3 miles
northwest of Cleora. Movement was east at 45 mph.
HAZARD...Wind gusts up to 50 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations in or near the path include...
Grove... Fairland...
Afton... Bernice...
Cleora... Honey Creek State Park...
Bernice State Park... Dodge...
Cayuga...
This includes Interstate 44 between mile markers 288 and 301.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3653 9462 3660 9516 3677 9496 3678 9462
TIME...MOT...LOC 2021Z 268DEG 37KT 3672 9489 3662 9501
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 4, 1:34 PM CDT | Heat Advisory | TSA | Haskell, Latimer, McIntosh, Muskogee, Okfuskee, Okmulgee and 2 more | 5 hr |
| Sep 4, 2:53 PM CDT | Special Weather Statement | TSA | Ottawa | 37 min |
| Sep 4, 3:23 PM CDT | Special Weather Statement | TSA | Pawnee | 37 min |
| Sep 4, 5:03 PM CDT | Special Weather Statement | TSA | Creek | 27 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.