Alert archive / Texas / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 9, NWS San Angelo, TX

February 16, 2008Concho County, McCulloch County, Menard County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Feb 16, 2008, 11:10 AM CST for Concho County, McCulloch County, Menard County, Texas. 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 counties it named.

The facts

Issued: Feb 16, 2008, 11:10 AM CST (17:10 UTC)
Expired: Feb 16, 2008, 11:45 AM CST
In force: 35 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon

Counties Concho County, TX, McCulloch County, TX, Menard County, TX

The radar

The San Angelo radar (KSJT), 82 km from the middle of the area, began a volume at 17:13 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 12:00Z, 5.2 hours before the alert went out and 293 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: 362 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 591 m²/s²
0-3 km storm-relative helicity: 667 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.9

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Feb 16, 5:36 AM CST, 5 hours 34 minutes earlier.

Area forecast discussion, Feb 16, 5:36 AM CST, 5 hours 34 minutes before

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Hazardous weather outlook, Feb 16, 4:14 AM CST, 6 hours 56 minutes before

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In the hours before

Special weather statement, Feb 16, 10:03 AM CST, 1 hour 7 minutes before

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Special weather statement, Feb 16, 10:56 AM CST, 14 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 15, 8:06 PM CST	Freezing Rain Advisory	SJT	Brown, Coleman, Concho, Crockett, Irion, McCulloch and 4 more	8 hr
Feb 15, 9:59 PM CST	Severe Thunderstorm Warning	SJT	Taylor	31 min
Feb 15, 10:18 PM CST	Severe Thunderstorm Warning	SJT	Jones	27 min
Feb 15, 10:43 PM CST	Severe Thunderstorm Warning	SJT	Jones, Taylor	32 min
Feb 15, 11:27 PM CST	Severe Thunderstorm Warning	SJT	Jones	19 min
Feb 16, 4:40 AM CST	Severe Thunderstorm Warning	SJT	Haskell	23 min
Feb 16, 10:12 AM CST	Severe Thunderstorm Warning	SJT	Coleman	33 min
Feb 16, 10:29 AM CST	Severe Thunderstorm Warning	SJT	Callahan, Coleman	31 min
Feb 16, 10:30 AM CST	Severe Thunderstorm Warning	SJT	Kimble, Sutton	30 min

Nearby

Severe Thunderstorm Warnings in Texas, 2008 Every severe thunderstorm warning in 2008

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.