Alert archive / Texas / Red Flag Warnings in 2007

Red Flag Warning 6, NWS San Angelo, TX

April 13, 20077 counties in Texas

NWS San Angelo, TX issued this red flag warning at Apr 13, 2007, 3:18 AM CDT for 7 counties in Texas. It took effect at Apr 13, 2007, 1:00 PM CDT. It was in force for 7 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 13, 2007, 3:18 AM CDT (08:18 UTC)
In effect from: Apr 13, 2007, 1:00 PM CDT
Expired: Apr 13, 2007, 8:00 PM CDT
In force: 7 hr
Issued by: NWS San Angelo, TX

Counties Coke County, TX, Crockett County, TX, Fisher County, TX, Irion County, TX, Nolan County, TX, Sterling County, TX, Tom Green County, TX

The radar

The San Angelo radar (KSJT), 48 km from the middle of the area, began a volume at 08:18 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

Midland Regional, TX (KMAF), launched 00:00Z, 8.3 hours before the alert went out and 139 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: 5 J/kg
Mixed-layer CIN: -193 J/kg
Mixed-layer LCL: 2926 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 236 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS San Angelo, TX wrote its last area forecast discussion before this red flag warning went out at Apr 13, 3:16 AM CDT, 2 minutes earlier.

Area forecast discussion, Apr 13, 3:16 AM CDT, 2 minutes before

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Hazardous weather outlook, Apr 13, 3:17 AM CDT, 1 minute before

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      <div class="status" id="status">Temporary Notice</div>
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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 San Angelo, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 13, 3:16 AM CDT	Lake Wind Advisory	SJT	Coke, Concho, Nolan, Runnels, Taylor, Tom Green	17 hr
Apr 13, 1:13 PM CDT	Severe Thunderstorm Warning	SJT	Haskell	32 min
Apr 13, 1:28 PM CDT	Tornado Warning	SJT	Haskell	32 min
Apr 13, 1:51 PM CDT	Tornado Warning	SJT	Haskell	24 min
Apr 13, 3:33 PM CDT	Severe Thunderstorm Warning	SJT	Callahan	17 min
Apr 13, 5:26 PM CDT	Severe Thunderstorm Warning	SJT	Brown	34 min
Apr 13, 5:36 PM CDT	Severe Thunderstorm Warning	SJT	Brown, San Saba	39 min
Apr 13, 6:35 PM CDT	Severe Thunderstorm Warning	SJT	San Saba	25 min

Nearby

Red Flag Warnings in Texas, 2007 Every red flag warning in 2007

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.