Alert archive / Oklahoma / Special Weather Statements in 2009

Special Weather Statement, NWS Tulsa, OK

August 20, 2009Haskell County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Aug 20, 2009, 3:14 PM CDT for Haskell County, Oklahoma. It was in force for 46 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 20, 2009, 3:14 PM CDT (20:14 UTC)
Expired: Aug 20, 2009, 4:00 PM CDT
In force: 46 min
Issued by: NWS Tulsa, OK

County Haskell County, OK

The radar

The Western Arkansas radar (KSRX), 79 km from the middle of the area, began a volume at 20:16 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 199 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: 640 J/kg
Mixed-layer CIN: -223 J/kg
Mixed-layer LCL: 1355 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 239 m²/s²
0-3 km storm-relative helicity: 333 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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 20, 3:14 PM CDT, 0 minutes earlier.

Area forecast discussion, Aug 20, 3:14 PM CDT, 0 minutes before

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Hazardous weather outlook, Aug 20, 12:46 PM CDT, 2 hours 28 minutes before

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In the hours before

Local storm report, Aug 20, 9:30 AM CDT, 5 hours 44 minutes before

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Local storm report, Aug 20, 12:06 PM CDT, 3 hours 8 minutes before

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Local storm report, Aug 20, 12:29 PM CDT, 2 hours 45 minutes before

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Local storm report, Aug 20, 2:11 PM CDT, 1 hour 3 minutes before

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Special weather statement, Aug 20, 2:57 PM CDT, 17 minutes before

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Special weather statement, Aug 20, 3:14 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 19, 9:20 PM CDT	Special Weather Statement	TSA	Nowata	25 min
Aug 19, 9:31 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Nowata	44 min
Aug 19, 10:13 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Ottawa	62 min
Aug 19, 10:35 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Ottawa	40 min
Aug 19, 11:48 PM CDT	Special Weather Statement	TSA	Pawnee	42 min
Aug 19, 11:57 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee, Tulsa	48 min
Aug 20, 12:10 AM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	36 min
Aug 20, 12:37 AM CDT	Severe Thunderstorm Warning	TSA	Nowata, Osage, Rogers, Tulsa, Washington	23 min
Aug 20, 12:50 AM CDT	Special Weather Statement	TSA	Nowata	40 min
Aug 20, 12:54 AM CDT	Special Weather Statement	TSA	Creek	51 min
Aug 20, 12:58 AM CDT	Severe Thunderstorm Warning	TSA	Craig, Mayes, Nowata, Rogers, Tulsa	36 min
Aug 20, 1:05 AM CDT	Severe Thunderstorm Warning	TSA	Nowata, Osage, Washington	40 min
Aug 20, 1:07 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee, Okmulgee	38 min
Aug 20, 1:29 AM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Ottawa	31 min
Aug 20, 1:39 AM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Muskogee, Okmulgee, Wagoner	35 min
Aug 20, 1:52 AM CDT	Special Weather Statement	TSA	Craig, Nowata	23 min
Aug 20, 1:58 AM CDT	Areal Flood Advisory	TSA	Craig, Nowata, Ottawa	62 min
Aug 20, 1:59 AM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Nowata, Ottawa	46 min
Aug 20, 2:23 AM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	45 min
Aug 20, 2:24 AM CDT	Special Weather Statement	TSA	Wagoner	36 min
Aug 20, 2:43 AM CDT	Severe Thunderstorm Warning	TSA	Delaware, Ottawa	34 min
Aug 20, 2:56 AM CDT	Special Weather Statement	TSA	Tulsa	34 min
Aug 20, 4:10 AM CDT	Special Weather Statement	TSA	Cherokee, Wagoner	35 min
Aug 20, 4:47 AM CDT	Special Weather Statement	TSA	Adair, Cherokee, Wagoner	58 min
Aug 20, 5:12 AM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Muskogee, Wagoner	63 min
Aug 20, 5:39 AM CDT	Severe Thunderstorm Warning	TSA	Haskell, LeFlore, Muskogee, Sequoyah	66 min
Aug 20, 6:43 AM CDT	Severe Thunderstorm Warning	TSA	Haskell, Latimer, LeFlore, Muskogee, Pittsburg, Sequoyah	62 min
Aug 20, 7:26 AM CDT	Areal Flood Advisory	TSA	Adair, Haskell, Latimer, LeFlore, McIntosh, Muskogee and 2 more	2 hr
Aug 20, 8:02 AM CDT	Areal Flood Advisory	TSA	Cherokee, Creek, Mayes, Okmulgee, Rogers, Tulsa and 1 more	3 hr
Aug 20, 8:48 AM CDT	River Flood Warning	TSA	Ottawa	50 hr
Aug 20, 8:48 AM CDT	River Flood Warning	TSA	Ottawa	14 hr
Aug 20, 8:50 AM CDT	Flash Flood Warning	TSA	LeFlore	5 hr
Aug 20, 9:34 AM CDT	Areal Flood Advisory	TSA	Haskell, Latimer, McIntosh, Muskogee, Pittsburg	116 min
Aug 20, 9:47 AM CDT	Flash Flood Warning	TSA	Haskell	4 hr
Aug 20, 9:59 AM CDT	Flash Flood Warning	TSA	Pittsburg	4 hr
Aug 20, 2:57 PM CDT	Special Weather Statement	TSA	Pittsburg	48 min
Aug 20, 3:19 PM CDT	Special Weather Statement	TSA	Pittsburg	41 min
Aug 20, 4:03 PM CDT	Special Weather Statement	TSA	Pittsburg	42 min
Aug 20, 12:18 AM CDT	Special Weather Statement	TSA	Carroll	57 min
Aug 20, 3:03 AM CDT	Severe Thunderstorm Warning	TSA	Benton	57 min
Aug 20, 3:25 AM CDT	Special Weather Statement	TSA	Carroll, Madison	65 min
Aug 20, 3:31 AM CDT	Tornado Warning	TSA	Benton	29 min
Aug 20, 4:00 AM CDT	Severe Thunderstorm Warning	TSA	Benton, Carroll, Madison, Washington	9 min
Aug 20, 6:17 AM CDT	Severe Thunderstorm Warning	TSA	Crawford, Franklin, Sebastian	58 min

Nearby

Special Weather Statements in Oklahoma, 2009 Every special weather statement in 2009

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.