Alert archive / Oklahoma / Special Weather Statements in 2012

Special Weather Statement, NWS Tulsa, OK

July 26, 2012Choctaw County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Jul 26, 2012, 11:21 PM CDT for Choctaw 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
Jul 26, 2012, 11:21 PM CDT (04:21 UTC)
Expired
Jul 26, 2012, 11:45 PM CDT
In force
24 min
Issued by
NWS Tulsa, OK

County Choctaw County, OK

The radar

The Western Arkansas radar (KSRX), 176 km from the middle of the area, began a volume at 04:22 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

Shreveport, LA (KSHV), launched 00:00Z, 4.4 hours before the alert went out and 218 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, Shreveport, LA at 00:00Z on 2012-07-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1633 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, Shreveport, LA at 00:00Z on 2012-07-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -13 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
1633 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
1619 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-13 m²/s²
0-3 km storm-relative helicity
17 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

524 
WWUS84 KTSA 270421
SPSTSA

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1121 PM CDT THU JUL 26 2012

OKZ053-270445-
CHOCTAW OK-
1121 PM CDT THU JUL 26 2012

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 1145 PM CDT
FOR THE FOLLOWING COUNTY...

IN SOUTHEAST OKLAHOMA
     EASTERN CHOCTAW

AT 1121 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 4 MILES SOUTH OF
SAWYER...MOVING SOUTHEAST AT 15 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...ORD...FROGVILLE...SAWYER...FORT
TOWSON...SWINK...HUSKEY...FALLON...HUGO LAKE STATE PARK AND RAYMOND
GARY STATE PARK.

THIS STORM WILL BE CAPABLE OF PRODUCING NICKEL SIZE HAIL AND WIND
GUSTS TO 50 MPH. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE
THE SIGNIFICANT WEATHER ADVISORY IS UPGRADED TO A WARNING.

LAT...LON 3388 9547 3387 9551 3390 9552 3416 9533
      3414 9515 3393 9516 3395 9522 3393 9524
      3389 9525 3387 9529 3388 9533 3387 9534
      3386 9542
TIME...MOT...LOC 0421Z 300DEG 11KT 3396 9535

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 7:13 PM CDTSevere Thunderstorm WarningTSAPittsburg, Pushmataha34 min
Jul 26, 7:18 PM CDTSevere Thunderstorm WarningTSAMcIntosh, Okfuskee, Okmulgee57 min
Jul 26, 7:23 PM CDTSpecial Weather StatementTSAWagoner37 min
Jul 26, 7:30 PM CDTSevere Thunderstorm WarningTSAMcIntosh, Muskogee, Okmulgee60 min
Jul 26, 7:33 PM CDTSpecial Weather StatementTSACherokee27 min
Jul 26, 7:46 PM CDTSevere Thunderstorm WarningTSAChoctaw35 min
Jul 26, 7:48 PM CDTSpecial Weather StatementTSALatimer42 min
Jul 26, 7:53 PM CDTSpecial Weather StatementTSAMayes52 min
Jul 26, 8:17 PM CDTSpecial Weather StatementTSAOkmulgee28 min
Jul 26, 8:33 PM CDTSpecial Weather StatementTSAHaskell, McIntosh, Muskogee27 min
Jul 26, 9:02 PM CDTSpecial Weather StatementTSAHaskell, Latimer, Sequoyah28 min
Jul 27, 12:04 AM CDTSpecial Weather StatementTSAChoctaw41 min
Jul 27, 1:39 AM CDTSpecial Weather StatementTSALatimer36 min
Jul 27, 3:41 AM CDTHeat AdvisoryTSACraig, Creek, Mayes, Muskogee, Nowata, Okfuskee and 6 more16 hr
Jul 27, 3:41 AM CDTHeat AdvisoryTSAAdair, Cherokee, Choctaw, Craig, Creek, Delaware and 16 more9 days
Jul 27, 3:50 PM CDTExcessive Heat WarningTSAAdair, Cherokee, Craig, Creek, Delaware, Haskell and 13 more8 days

Nearby

Special Weather Statements in Oklahoma, 2012Every special weather statement in 2012

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.