Alert archive / Oklahoma / Special Weather Statements in 2021

Special Weather Statement, NWS Tulsa, OK

August 9, 2021Okfuskee County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Aug 9, 2021, 8:08 AM CDT for Okfuskee County, Oklahoma. It was in force for 37 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 9, 2021, 8:08 AM CDT (13:08 UTC)
Expired
Aug 9, 2021, 8:45 AM CDT
In force
37 min
Issued by
NWS Tulsa, OK
Hail
0.75 in
Wind
30

County Okfuskee County, OK

The radar

The Norman radar (KTLX), 83 km from the middle of the area, began a volume at 13:08 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, 1.1 hours before the alert went out and 274 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.

Skew-T log-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 2021-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2379 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2021-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 157 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
2379 J/kg
Mixed-layer CIN
-67 J/kg
Mixed-layer LCL
1006 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
157 m²/s²
0-3 km storm-relative helicity
180 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

212 
WWUS84 KTSA 091308
SPSTSA

Special Weather Statement
National Weather Service Tulsa OK
808 AM CDT Mon Aug 9 2021
 
OKZ064-065-091345-
Okfuskee OK-Creek OK-
808 AM CDT Mon Aug 9 2021

...A strong thunderstorm will impact portions of southwestern Creek
and northwestern Okfuskee Counties through 845 AM CDT...

At 808 AM CDT, Doppler radar indicated a strong thunderstorm 6 miles
west of Welty, moving northeast at 15 mph.

HAZARD...Dime to penny size hail.

SOURCE...Radar indicated.

IMPACT...Minor damage to outdoor objects is possible.

Locations in or near the path include...
Okfuskee...                       Boley...
Welty...                          Mason...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

&&

LAT...LON 3582 9636 3559 9619 3547 9653 3561 9662
      3564 9662
TIME...MOT...LOC 1308Z 239DEG 14KT 3560 9651 

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...<30 MPH

$$

Lacy

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 9, 4:05 AM CDTExcessive Heat WarningTSACraig, Mayes, Nowata, Pawnee, Rogers, Tulsa and 2 more16 hr
Aug 9, 8:46 AM CDTSpecial Weather StatementTSAOkmulgee29 min
Aug 9, 8:47 AM CDTSpecial Weather StatementTSAOkfuskee28 min
Aug 9, 10:27 AM CDTSpecial Weather StatementTSAWagoner33 min
Aug 9, 2:14 PM CDTHeat AdvisoryTSAAdair, Cherokee, Choctaw, Craig, Creek, Delaware and 16 more30 hr

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.