Alert archive / Oklahoma / Special Weather Statements in 2013

Special Weather Statement, NWS Tulsa, OK

January 29, 2013Washington County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Jan 29, 2013, 3:53 AM CST for Washington 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: Jan 29, 2013, 3:53 AM CST (09:53 UTC)
Expired: Jan 29, 2013, 4:30 AM CST
In force: 37 min
Issued by: NWS Tulsa, OK

County Washington County, OK

The radar

The Tulsa radar (KINX), 83 km from the middle of the area, began a volume at 09:55 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 00:00Z, 9.9 hours before the alert went out and 214 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: 686 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 935 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 275 m²/s²
0-3 km storm-relative helicity: 382 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 10.3

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tulsa, OK wrote its last area forecast discussion before this special weather statement went out at Jan 29, 2:35 AM CST, 1 hour 18 minutes earlier.

Area forecast discussion, Jan 29, 2:35 AM CST, 1 hour 18 minutes before

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Hazardous weather outlook, Jan 28, 5:09 PM CST, 10 hours 44 minutes before

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In the hours before

Special weather statement, Jan 29, 3:53 AM CST, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
353 AM CST TUE JAN 29 2013

OKZ054>056-291030-
NOWATA OK-OSAGE OK-WASHINGTON OK-
353 AM CST TUE JAN 29 2013

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 430 AM CST
FOR THE FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA
     NORTHWESTERN NOWATA...NORTHEASTERN OSAGE AND WASHINGTON

AT 353 AM CST...A STRONG THUNDERSTORM WAS LOCATED OVER OSAGE HILLS
STATE PARK...MOVING NORTHEAST AT 60 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...WANN...OKESA...HULAH...DEWEY...
COPAN...SOUTH COFFEYVILLE...OSAGE HILLS STATE PARK AND WAH SHA SHE
STATE PARK.

THIS STORM WILL BE CAPABLE OF PRODUCING PENNY SIZE HAIL AND WIND
GUSTS TO 40 MPH. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN
CASE THE SIGNIFICANT WEATHER ADVISORY IS UPGRADED TO A WARNING.

LAT...LON 3664 9618 3677 9633 3700 9601 3700 9558
TIME...MOT...LOC 0953Z 228DEG 54KT 3677 9617

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 29, 4:46 AM CST	Special Weather Statement	TSA	Pawnee	29 min
Jan 29, 6:52 AM CST	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee	53 min
Jan 29, 7:43 AM CST	Special Weather Statement	TSA	Osage, Pawnee, Washington	62 min
Jan 29, 7:57 AM CST	Severe Thunderstorm Warning	TSA	Osage	33 min
Jan 29, 8:04 AM CST	Severe Thunderstorm Warning	TSA	Osage, Washington	26 min
Jan 29, 8:28 AM CST	Special Weather Statement	TSA	Nowata, Washington	32 min
Jan 29, 8:31 AM CST	Special Weather Statement	TSA	Osage	29 min
Jan 29, 8:38 AM CST	Severe Thunderstorm Warning	TSA	Craig, Nowata, Osage, Washington	67 min
Jan 29, 12:56 PM CST	Special Weather Statement	TSA	Latimer	34 min
Jan 29, 1:02 PM CST	Special Weather Statement	TSA	Cherokee	28 min
Jan 29, 1:27 PM CST	Special Weather Statement	TSA	Delaware	48 min
Jan 29, 1:29 PM CST	Special Weather Statement	TSA	Latimer	46 min
Jan 29, 2:03 PM CST	Special Weather Statement	TSA	Haskell, Sequoyah	42 min
Jan 29, 2:04 PM CST	Special Weather Statement	TSA	Cherokee	41 min
Jan 29, 2:44 PM CST	Severe Thunderstorm Warning	TSA	Adair, Sequoyah	46 min
Jan 29, 2:51 PM CST	Tornado Warning	TSA	Adair, Sequoyah	39 min
Jan 29, 5:19 PM CST	Special Weather Statement	TSA	LeFlore	41 min
Jan 29, 5:59 PM CST	Areal Flood Advisory	TSA	LeFlore	2 hr
Jan 29, 2:42 PM CST	Special Weather Statement	TSA	Washington	33 min
Jan 29, 3:29 PM CST	Special Weather Statement	TSA	Madison	46 min
Jan 29, 4:01 PM CST	Severe Thunderstorm Warning	TSA	Carroll	29 min
Jan 29, 4:15 PM CST	Severe Thunderstorm Warning	TSA	Carroll	15 min
Jan 29, 4:51 PM CST	Severe Thunderstorm Warning	TSA	Franklin, Madison	39 min
Jan 29, 4:55 PM CST	Severe Thunderstorm Warning	TSA	Franklin, Sebastian	50 min
Jan 29, 5:42 PM CST	Severe Thunderstorm Warning	TSA	Franklin	48 min

Nearby

Special Weather Statements in Oklahoma, 2013 Every special weather statement in 2013

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.