Alert archive / Oklahoma / Special Weather Statements in 2017

Special Weather Statement, NWS Tulsa, OK

August 14, 2017Okmulgee County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Aug 14, 2017, 7:37 AM CDT for Okmulgee County, Oklahoma. It was in force for 23 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 14, 2017, 7:37 AM CDT (12:37 UTC)
Expired
Aug 14, 2017, 8:00 AM CDT
In force
23 min
Issued by
NWS Tulsa, OK

County Okmulgee County, OK

The radar

The Tulsa radar (KINX), 84 km from the middle of the area, began a volume at 12:40 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

Norman, OK (KOUN), launched 12:00Z, 0.6 hours before the alert went out and 133 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, Norman, OK at 12:00Z on 2017-08-14Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 12:00Z on 2017-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
749 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
115 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

616 
WWUS84 KTSA 141237
SPSTSA

Special Weather Statement
National Weather Service Tulsa OK
737 AM CDT MON AUG 14 2017
 
OKZ066-071-141300-
Okmulgee OK-McIntosh OK-
737 AM CDT MON AUG 14 2017

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN MCINTOSH AND
SOUTHERN OKMULGEE COUNTIES UNTIL 800 AM CDT...

At 737 AM CDT, a strong thunderstorm was located over Schulter,
moving northeast at 15 mph.

Dime size hail and winds in excess of 40 mph will be possible with
this storm.

Locations in or near the path include...
Okmulgee...                       Henryetta...
Morris...                         Dewar...
Schulter...                       Grayson...
Hoffman...                        Hitchita...
Bryant...                         

This includes Interstate 40 in Oklahoma between mile markers 232 and
248.
 
LAT...LON 3555 9609 3570 9588 3550 9570 3538 9588
      3538 9608 3540 9609
TIME...MOT...LOC 1237Z 233DEG 14KT 3551 9594 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 14, 6:12 AM CDTSpecial Weather StatementTSAOkfuskee33 min
Aug 14, 6:42 AM CDTSpecial Weather StatementTSAOkfuskee48 min
Aug 14, 7:31 AM CDTSpecial Weather StatementTSAOkmulgee29 min
Aug 14, 2:53 PM CDTAreal Flood AdvisoryTSAPittsburg3 hr
Aug 14, 3:19 PM CDTFlash Flood WarningTSAPittsburg5 hr
Aug 14, 4:13 PM CDTSpecial Weather StatementTSALatimer47 min
Aug 14, 5:39 PM CDTSpecial Weather StatementTSAChoctaw36 min
Aug 14, 6:25 PM CDTSpecial Weather StatementTSAChoctaw50 min
Aug 14, 6:41 PM CDTSpecial Weather StatementTSAChoctaw34 min

Nearby

Special Weather Statements in Oklahoma, 2017Every special weather statement in 2017

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.