Alert archive / Oklahoma / Special Weather Statements in 2012

Special Weather Statement, NWS Norman, OK

August 7, 2012Pontotoc County, Oklahoma

NWS Norman, OK issued this special weather statement at Aug 7, 2012, 3:12 PM CDT for Pontotoc County, Oklahoma. It was in force for 48 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 7, 2012, 3:12 PM CDT (20:12 UTC)
Expired: Aug 7, 2012, 4:00 PM CDT
In force: 48 min
Issued by: NWS Norman, OK

County Pontotoc County, OK

The radar

The Norman radar (KTLX), 72 km from the middle of the area, began a volume at 20:12 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, 8.2 hours before the alert went out and 70 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1162 J/kg
Mixed-layer CIN: -208 J/kg
Mixed-layer LCL: 1956 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 135 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

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

913 
WWUS84 KOUN 072012
SPSOUN

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
312 PM CDT TUE AUG 7 2012

OKZ028-030-040-042-072100-
MCCLAIN OK-GARVIN OK-PONTOTOC OK-POTTAWATOMIE OK-
312 PM CDT TUE AUG 7 2012

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN MCCLAIN...EASTERN
GARVIN...WESTERN PONTOTOC AND SOUTH CENTRAL POTTAWATOMIE COUNTIES
UNTIL 400 PM CDT...

AT 308 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 7 MILES
SOUTHWEST OF KONAWA...MOVING SOUTH AT 25 MPH.

HAZARDS INCLUDE...
HAIL UP TO ONE-HALF INCH DIAMETER... 
WIND GUSTS TO 50 MPH...

LOCATIONS IMPACTED INCLUDE...
STRATFORD...ROFF...FITZHUGH AND VANOSS. 

LAT...LON 3465 9700 3502 9701 3492 9677 3490 9678
      3489 9675 3487 9675 3485 9672 3452 9663
TIME...MOT...LOC 2008Z 349DEG 22KT 3489 9685 

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 6, 8:21 PM CDT	Special Weather Statement	OUN	Love	24 min
Aug 6, 10:49 PM CDT	Special Weather Statement	OUN	Love	26 min
Aug 7, 9:45 AM CDT	Special Weather Statement	OUN	Stephens	30 min
Aug 7, 12:23 PM CDT	Special Weather Statement	OUN	Atoka	52 min
Aug 7, 12:37 PM CDT	Severe Thunderstorm Warning	OUN	Atoka	38 min
Aug 7, 12:54 PM CDT	Special Weather Statement	OUN	Johnston	36 min
Aug 7, 1:20 PM CDT	Special Weather Statement	OUN	Atoka	25 min
Aug 7, 1:25 PM CDT	Special Weather Statement	OUN	Coal	35 min
Aug 7, 1:39 PM CDT	Special Weather Statement	OUN	Johnston, Marshall	51 min
Aug 7, 1:54 PM CDT	Special Weather Statement	OUN	Johnston	51 min
Aug 7, 2:08 PM CDT	Special Weather Statement	OUN	Bryan	67 min
Aug 7, 2:34 PM CDT	Special Weather Statement	OUN	Pontotoc	56 min
Aug 7, 2:44 PM CDT	Special Weather Statement	OUN	Blaine	46 min
Aug 7, 3:36 PM CDT	Severe Thunderstorm Warning	OUN	Garvin, McClain, Pontotoc, Pottawatomie	39 min
Aug 7, 4:16 PM CDT	Special Weather Statement	OUN	Seminole	44 min
Aug 7, 4:19 PM CDT	Special Weather Statement	OUN	Grady	26 min
Aug 7, 4:26 PM CDT	Special Weather Statement	OUN	Canadian	49 min
Aug 7, 4:30 PM CDT	Special Weather Statement	OUN	Carter, Love, Marshall, Murray	45 min
Aug 7, 4:41 PM CDT	Severe Thunderstorm Warning	OUN	Grady	34 min
Aug 7, 4:59 PM CDT	Special Weather Statement	OUN	Cleveland, Oklahoma	31 min
Aug 7, 5:20 PM CDT	Special Weather Statement	OUN	Grady	25 min
Aug 7, 5:37 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Kingfisher, Logan, Oklahoma	38 min
Aug 7, 6:14 PM CDT	Special Weather Statement	OUN	Comanche	31 min
Aug 7, 6:18 PM CDT	Special Weather Statement	OUN	McClain	42 min
Aug 7, 6:22 PM CDT	Special Weather Statement	OUN	Jefferson	53 min
Aug 7, 6:30 PM CDT	Special Weather Statement	OUN	Logan	30 min
Aug 7, 6:54 PM CDT	Special Weather Statement	OUN	Cotton	51 min
Aug 7, 6:57 PM CDT	Special Weather Statement	OUN	Hughes	33 min
Aug 7, 5:48 PM CDT	Special Weather Statement	OUN	Knox	27 min

Nearby

Special Weather Statements in Oklahoma, 2012 Every 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.