Alert archive / Texas / Special Weather Statements in 2012

Special Weather Statement, NWS Norman, OK

May 4, 2012Archer County, Baylor County, Texas

NWS Norman, OK issued this special weather statement at May 4, 2012, 5:04 AM CDT for Archer County, Baylor County, Texas. It was in force for 26 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
May 4, 2012, 5:04 AM CDT (10:04 UTC)
Expired
May 4, 2012, 5:30 AM CDT
In force
26 min
Issued by
NWS Norman, OK

Counties Archer County, TX, Baylor County, TX

The radar

The Altus AFB radar (KFDR), 84 km from the middle of the area, began a volume at 10:05 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

Fort Worth, TX (KFWD), launched 00:00Z, 10.1 hours before the alert went out and 181 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, Fort Worth, TX at 00:00Z on 2012-05-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2231 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, Fort Worth, TX at 00:00Z on 2012-05-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 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
2231 J/kg
Mixed-layer CIN
-191 J/kg
Mixed-layer LCL
1614 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.1

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 Norman, OK wrote its last area forecast discussion before this special weather statement went out at May 4, 4:06 AM CDT, 58 minutes earlier.

Area forecast discussion, May 4, 4:06 AM CDT, 58 minutes before
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Hazardous weather outlook, May 4, 4:21 AM CDT, 43 minutes before
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In the hours before

Special weather statement, May 3, 11:50 PM CDT, 5 hours 14 minutes before
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Special weather statement, May 4, 12:25 AM CDT, 4 hours 39 minutes before
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Special weather statement, May 4, 5:04 AM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 3, 9:28 PM CDTSevere Thunderstorm WarningOUNTillman62 min
May 4, 7:52 AM CDTSpecial Weather StatementOUNCaddo, Grady38 min
May 4, 8:42 AM CDTSpecial Weather StatementOUNOklahoma48 min
May 4, 9:37 AM CDTHigh Wind WarningOUNCanadian, Kingfisher83 min
May 4, 3:30 PM CDTSpecial Weather StatementOUNJackson45 min
May 4, 4:12 PM CDTSevere Thunderstorm WarningOUNComanche, Jackson, Kiowa, Tillman63 min
May 4, 5:16 PM CDTSpecial Weather StatementOUNCotton, Tillman29 min
May 4, 5:40 PM CDTSevere Thunderstorm WarningOUNComanche, Cotton, Grady, Jefferson, Stephens, Tillman65 min
May 4, 6:11 PM CDTSevere Thunderstorm WarningOUNCotton, Tillman64 min
May 3, 7:21 PM CDTSpecial Weather StatementOUNKnox24 min
May 3, 8:09 PM CDTSpecial Weather StatementOUNKnox66 min
May 3, 9:17 PM CDTSevere Thunderstorm WarningOUNKnox58 min
May 3, 10:03 PM CDTSpecial Weather StatementOUNBaylor27 min
May 3, 10:41 PM CDTSpecial Weather StatementOUNWilbarger64 min
May 3, 11:50 PM CDTSpecial Weather StatementOUNArcher, Baylor, Wichita25 min
May 4, 12:25 AM CDTSpecial Weather StatementOUNBaylor, Wichita35 min
May 4, 5:26 AM CDTSpecial Weather StatementOUNBaylor, Wichita34 min
May 4, 6:07 AM CDTSpecial Weather StatementOUNWichita23 min
May 4, 4:17 PM CDTSpecial Weather StatementOUNArcher28 min
May 4, 4:45 PM CDTSevere Thunderstorm WarningOUNArcher, Clay49 min

Nearby

Special Weather Statements in Texas, 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.