Alert archive / Oklahoma / Special Weather Statements in 2012

Special Weather Statement, NWS Tulsa, OK

February 3, 2012LeFlore County, Oklahoma; Sebastian County, Arkansas

NWS Tulsa, OK issued this special weather statement at Feb 3, 2012, 8:58 PM CST for LeFlore County, Oklahoma; Sebastian County, Arkansas. It was in force for 62 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
Feb 3, 2012, 8:58 PM CST (02:58 UTC)
Expired
Feb 3, 2012, 10:00 PM CST
In force
62 min
Issued by
NWS Tulsa, OK

Counties Sebastian County, AR, LeFlore County, OK

The radar

The Western Arkansas radar (KSRX), 11 km from the middle of the area, began a volume at 02:59 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

Shreveport, LA (KSHV), launched 00:00Z, 3.0 hours before the alert went out and 311 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-pSkew-T log-p diagram, Shreveport, LA at 00:00Z on 2012-02-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 785 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 00:00Z on 2012-02-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 201 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
785 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
633 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
201 m²/s²
0-3 km storm-relative helicity
251 m²/s²
Significant tornado parameter
1.0
Supercell composite
5.9

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 Feb 3, 5:26 PM CST, 3 hours 32 minutes earlier.

Area forecast discussion, Feb 3, 5:26 PM CST, 3 hours 32 minutes before
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Hazardous weather outlook, Feb 3, 5:17 PM CST, 3 hours 41 minutes before
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In the hours before

Special weather statement, Feb 3, 4:51 PM CST, 4 hours 7 minutes before
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Special weather statement, Feb 3, 5:20 PM CST, 3 hours 38 minutes before
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      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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The office that day

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

IssuedProductOfficeCountiesLasted
Feb 3, 7:14 PM CSTSpecial Weather StatementTSAPushmataha61 min
Feb 3, 7:21 PM CSTAreal Flood AdvisoryTSAAdair, Cherokee, Haskell, McIntosh, Muskogee, Sequoyah84 min
Feb 3, 8:09 PM CSTSpecial Weather StatementTSALeFlore66 min
Feb 3, 8:30 PM CSTSpecial Weather StatementTSAChoctaw, LeFlore, Pushmataha60 min
Feb 3, 9:17 PM CSTAreal Flood AdvisoryTSALeFlore, Pushmataha3 hr
Feb 3, 9:50 PM CSTSpecial Weather StatementTSAFranklin25 min

Nearby

Special Weather Statements in Oklahoma, 2012Special Weather Statements in Arkansas, 2012Every 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.