Alert archive / Oklahoma / Special Weather Statements in 2015

Special Weather Statement, NWS Tulsa, OK

August 22, 2015Washington County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Aug 22, 2015, 12:54 AM CDT for Washington County, Oklahoma. It was in force for 51 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 22, 2015, 12:54 AM CDT (05:54 UTC)
Expired: Aug 22, 2015, 1:45 AM CDT
In force: 51 min
Issued by: NWS Tulsa, OK

County Washington County, OK

The radar

The Tulsa radar (KINX), 56 km from the middle of the area, began a volume at 05:56 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, 5.9 hours before the alert went out and 176 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: 1039 J/kg
Mixed-layer CIN: -91 J/kg
Mixed-layer LCL: 1680 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: -5 m²/s²
0-3 km storm-relative helicity: 114 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

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 Aug 21, 11:49 PM CDT, 1 hour 5 minutes earlier.

Area forecast discussion, Aug 21, 11:49 PM CDT, 1 hour 5 minutes before

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Hazardous weather outlook, Aug 21, 9:32 PM CDT, 3 hours 22 minutes before

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In the hours before

Special weather statement, Aug 21, 11:44 PM CDT, 1 hour 10 minutes before

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Special weather statement, Aug 22, 12:18 AM CDT, 36 minutes before

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Special weather statement, Aug 22, 12:54 AM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1254 AM CDT SAT AUG 22 2015

OKZ054>056-059>061-064-220645-
NOWATA OK-CREEK OK-TULSA OK-PAWNEE OK-ROGERS OK-OSAGE OK-
WASHINGTON OK-
1254 AM CDT SAT AUG 22 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN NOWATA...
WASHINGTON...NORTHWESTERN ROGERS...NORTHWESTERN TULSA...SOUTHEASTERN
PAWNEE...NORTHWESTERN CREEK AND SOUTHEASTERN OSAGE COUNTIES UNTIL 145
AM CDT...

AT 1253 AM CDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM NEAR OKESA TO 6 MILES NORTH
OF WALNUT CREEK STATE PARK TO 5 MILES NORTHWEST OF DRUMRIGHT...AND
MOVING EAST AT 35 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE...
NORTHWESTERN TULSA...BARTLESVILLE...SAND SPRINGS...SKIATOOK...
COLLINSVILLE...MANNFORD...BARNSDALL...SPERRY...OILTON...RAMONA...
OCHELATA...DELAWARE...AVANT...WESTPORT...VERA...TERLTON...WALNUT
CREEK STATE PARK...OKESA...KEYSTONE STATE PARK AND TALLANT.

LAT...LON 3684 9561 3643 9578 3601 9627 3601 9662
      3609 9662 3633 9632 3675 9614
TIME...MOT...LOC 0553Z 255DEG 30KT 3670 9610 3635 9626 3604 9667

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 21, 11:44 PM CDT	Special Weather Statement	TSA	Pawnee	46 min
Aug 22, 12:18 AM CDT	Special Weather Statement	TSA	Osage, Pawnee	42 min
Aug 22, 2:03 AM CDT	Special Weather Statement	TSA	Mayes	42 min
Aug 22, 3:29 AM CDT	Special Weather Statement	TSA	Pawnee	46 min
Aug 22, 5:10 AM CDT	Areal Flood Advisory	TSA	Osage, Pawnee	4 hr
Aug 22, 6:39 AM CDT	Areal Flood Advisory	TSA	Creek, Pawnee	3 hr
Aug 22, 6:54 AM CDT	Flash Flood Warning	TSA	Creek, Pawnee	5 hr
Aug 22, 8:09 AM CDT	Special Weather Statement	TSA	Creek	51 min
Aug 22, 8:27 AM CDT	Special Weather Statement	TSA	Ottawa	48 min
Aug 22, 8:43 AM CDT	Areal Flood Advisory	TSA	Creek, Okfuskee, Okmulgee, Tulsa	3 hr
Aug 22, 8:46 AM CDT	Special Weather Statement	TSA	Okfuskee, Okmulgee	44 min
Aug 22, 9:12 AM CDT	Special Weather Statement	TSA	Ottawa	48 min
Aug 22, 9:31 AM CDT	Special Weather Statement	TSA	Okfuskee, Okmulgee	59 min
Aug 22, 9:56 AM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Muskogee, Okfuskee, Okmulgee	64 min
Aug 22, 10:19 AM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Muskogee, Okfuskee, Okmulgee, Pittsburg	56 min
Aug 22, 10:35 AM CDT	Special Weather Statement	TSA	Muskogee	40 min
Aug 22, 10:49 AM CDT	Special Weather Statement	TSA	Muskogee	41 min
Aug 22, 10:59 AM CDT	Special Weather Statement	TSA	Pittsburg	46 min
Aug 22, 11:25 AM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	37 min
Aug 22, 11:31 AM CDT	Special Weather Statement	TSA	Haskell, Latimer	44 min
Aug 22, 11:49 AM CDT	Areal Flood Advisory	TSA	Haskell, Latimer, Pittsburg, Pushmataha	3 hr
Aug 22, 12:11 PM CDT	Special Weather Statement	TSA	LeFlore, Sequoyah	49 min
Aug 22, 12:21 PM CDT	Special Weather Statement	TSA	Pushmataha	39 min
Aug 22, 12:27 PM CDT	Areal Flood Advisory	TSA	Creek, Okfuskee, Okmulgee	3 hr
Aug 22, 1:03 PM CDT	Special Weather Statement	TSA	Pushmataha	42 min
Aug 22, 1:36 PM CDT	Special Weather Statement	TSA	Choctaw, Pushmataha	39 min
Aug 22, 1:00 PM CDT	Special Weather Statement	TSA	Crawford, Franklin, Sebastian	45 min
Aug 22, 1:44 PM CDT	Special Weather Statement	TSA	Franklin	46 min

Nearby

Special Weather Statements in Oklahoma, 2015 Every special weather statement in 2015

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.