Alert archive / Texas / Red Flag Warnings in 2009

Red Flag Warning 3, NWS San Angelo, TX

February 10, 200915 counties in Texas

NWS San Angelo, TX issued this red flag warning at Feb 10, 2009, 4:26 AM CST for 15 counties in Texas. It took effect at Feb 10, 2009, 1:00 PM CST. It was in force for 8 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: Feb 10, 2009, 4:26 AM CST (10:26 UTC)
In effect from: Feb 10, 2009, 1:00 PM CST
Expired: Feb 10, 2009, 9:00 PM CST
In force: 8 hr
Issued by: NWS San Angelo, TX

Counties Coke County, TX, Concho County, TX, Crockett County, TX, Fisher County, TX, Irion County, TX, Jones County, TX, Kimble County, TX, Menard County, TX, Nolan County, TX, Runnels County, TX, Schleicher County, TX, Sterling County, TX, Sutton County, TX, Taylor County, TX, Tom Green County, TX

The radar

The San Angelo radar (KSJT), 23 km from the middle of the area, began a volume at 10:23 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, 10.4 hours before the alert went out and 179 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3115 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 132 m²/s²
0-3 km storm-relative helicity: 172 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Feb 10, 3:30 AM CST, 56 minutes earlier.

Area forecast discussion, Feb 10, 3:30 AM CST, 56 minutes before

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Hazardous weather outlook, Feb 9, 2:49 PM CST, 13 hours 37 minutes before

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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
Feb 10, 2:38 AM CST	Wind Advisory	SJT	Brown, Callahan, Coke, Coleman, Concho, Crockett and 18 more	21 hr
Feb 10, 4:15 PM CST	High Wind Warning	SJT	Coke, Concho, Crockett, Fisher, Irion, Jones and 8 more	5 hr

Nearby

Red Flag Warnings in Texas, 2009 Every red flag warning 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.