Alert archive / Oklahoma / Special Weather Statements in 2021

Special Weather Statement, NWS Tulsa, OK

August 5, 2021Osage County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Aug 5, 2021, 4:09 PM CDT for Osage County, Oklahoma. It was in force for 36 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 5, 2021, 4:09 PM CDT (21:09 UTC)
Expired
Aug 5, 2021, 4:45 PM CDT
In force
36 min
Issued by
NWS Tulsa, OK
Hail
0.75 in
Wind
40

County Osage County, OK

The radar

The Tulsa radar (KINX), 76 km from the middle of the area, began a volume at 21:08 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, 9.2 hours before the alert went out and 216 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 2021-08-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 2021-08-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 119 square meters per square second.1939Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1108 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
119 m²/s²
0-3 km storm-relative helicity
141 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

648 
WWUS84 KTSA 052109
SPSTSA

Special Weather Statement
National Weather Service Tulsa OK
409 PM CDT Thu Aug 5 2021
 
OKZ054-052145-
Osage OK-
409 PM CDT Thu Aug 5 2021

...A strong thunderstorm will impact portions of east central Osage
County through 445 PM CDT...

At 409 PM CDT, Doppler radar indicated a strong thunderstorm 5 miles
northwest of Barnsdall, moving north at 10 mph.

HAZARD...Winds in excess of 40 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Minor damage to outdoor objects is 
         possible.

Locations in or near the path include...
Barnsdall...                      Okesa...
Nelagoney...                      Pershing...
Tallant...                        

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

&&

LAT...LON 3654 9617 3658 9630 3676 9630 3671 9604
TIME...MOT...LOC 2109Z 196DEG 9KT 3662 9621 

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 5, 2:48 PM CDTSpecial Weather StatementTSAHaskell27 min
Aug 5, 4:23 PM CDTSpecial Weather StatementTSATulsa37 min
Aug 5, 4:25 PM CDTSpecial Weather StatementTSAPawnee35 min
Aug 5, 4:49 PM CDTSpecial Weather StatementTSATulsa26 min
Aug 5, 4:54 PM CDTAreal Flood AdvisoryTSAHaskell, Latimer, LeFlore, Pittsburg, Sequoyah3 hr
Aug 5, 5:46 PM CDTSpecial Weather StatementTSAOsage29 min
Aug 5, 3:54 PM CDTSpecial Weather StatementTSASebastian51 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.