Alert archive / Oklahoma / Special Weather Statements in 2017

Special Weather Statement, NWS Tulsa, OK

March 9, 2017LeFlore County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Mar 9, 2017, 10:40 PM CST for LeFlore County, Oklahoma. It was in force for 35 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: Mar 9, 2017, 10:40 PM CST (04:40 UTC)
Expired: Mar 9, 2017, 11:15 PM CST
In force: 35 min
Issued by: NWS Tulsa, OK

County LeFlore County, OK

The radar

The Western Arkansas radar (KSRX), 34 km from the middle of the area, began a volume at 04:42 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, 4.7 hours before the alert went out and 249 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: 1504 J/kg
Mixed-layer CIN: -30 J/kg
Mixed-layer LCL: 1524 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 90 m²/s²
0-3 km storm-relative helicity: 174 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 5.6

Open this sounding in Storm Lab

The text

As transmitted.

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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 Mar 9, 9:58 PM CST, 42 minutes earlier.

Area forecast discussion, Mar 9, 9:58 PM CST, 42 minutes before

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Hazardous weather outlook, Mar 9, 10:16 PM CST, 24 minutes before

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In the hours before

Local storm report, Mar 9, 9:44 PM CST, 56 minutes before

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Special weather statement, Mar 9, 9:57 PM CST, 43 minutes before

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Local storm report, Mar 9, 10:21 PM CST, 19 minutes before

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Special weather statement, Mar 9, 10:26 PM CST, 14 minutes before

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Local storm report, Mar 9, 10:29 PM CST, 11 minutes before

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Special weather statement, Mar 9, 10:40 PM CST, 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
Mar 9, 6:25 PM CST	Special Weather Statement	TSA	Ottawa	20 min
Mar 9, 6:28 PM CST	Severe Thunderstorm Warning	TSA	Craig, Delaware, Ottawa	47 min
Mar 9, 7:06 PM CST	Severe Thunderstorm Warning	TSA	Delaware, Ottawa	39 min
Mar 9, 7:28 PM CST	Severe Thunderstorm Warning	TSA	Delaware	47 min
Mar 9, 7:32 PM CST	Special Weather Statement	TSA	Mayes	28 min
Mar 9, 7:35 PM CST	Severe Thunderstorm Warning	TSA	Cherokee, Delaware, Mayes	25 min
Mar 9, 7:59 PM CST	Special Weather Statement	TSA	Adair	31 min
Mar 9, 8:01 PM CST	Special Weather Statement	TSA	Muskogee	29 min
Mar 9, 8:24 PM CST	Severe Thunderstorm Warning	TSA	Adair, Cherokee, McIntosh, Muskogee, Wagoner	36 min
Mar 9, 8:56 PM CST	Severe Thunderstorm Warning	TSA	Cherokee, Muskogee, Sequoyah	34 min
Mar 9, 9:05 PM CST	Special Weather Statement	TSA	McIntosh, Okfuskee	25 min
Mar 9, 9:17 PM CST	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Sequoyah	28 min
Mar 9, 9:28 PM CST	Special Weather Statement	TSA	McIntosh, Muskogee	32 min
Mar 9, 9:42 PM CST	Severe Thunderstorm Warning	TSA	Cherokee, Haskell, Muskogee, Sequoyah	33 min
Mar 9, 9:57 PM CST	Special Weather Statement	TSA	McIntosh	33 min
Mar 9, 10:11 PM CST	Severe Thunderstorm Warning	TSA	Haskell, LeFlore, Sequoyah	34 min
Mar 9, 10:26 PM CST	Special Weather Statement	TSA	Latimer	34 min
Mar 9, 10:54 PM CST	Special Weather Statement	TSA	Latimer	36 min
Mar 9, 11:02 PM CST	Special Weather Statement	TSA	LeFlore	43 min
Mar 9, 11:30 PM CST	Special Weather Statement	TSA	LeFlore	30 min
Mar 10, 12:39 AM CST	Special Weather Statement	TSA	Pushmataha	66 min
Mar 9, 7:24 PM CST	Severe Thunderstorm Warning	TSA	Carroll	66 min
Mar 9, 8:02 PM CST	Severe Thunderstorm Warning	TSA	Benton, Carroll, Madison, Washington	58 min
Mar 9, 8:30 PM CST	Severe Thunderstorm Warning	TSA	Carroll, Madison	30 min
Mar 9, 8:41 PM CST	Severe Thunderstorm Warning	TSA	Madison, Washington	64 min
Mar 9, 9:22 PM CST	Severe Thunderstorm Warning	TSA	Crawford, Franklin, Madison, Washington	41 min
Mar 9, 9:24 PM CST	Special Weather Statement	TSA	Madison	51 min

Nearby

Special Weather Statements in Oklahoma, 2017 Every special weather statement in 2017

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.