Alert archive / Texas / Special Weather Statements in 2012

Special Weather Statement, NWS San Angelo, TX

August 27, 2012Schleicher County, Texas

NWS San Angelo, TX issued this special weather statement at Aug 27, 2012, 4:13 PM CDT for Schleicher County, Texas. It was in force for 32 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: Aug 27, 2012, 4:13 PM CDT (21:13 UTC)
Expired: Aug 27, 2012, 4:45 PM CDT
In force: 32 min
Issued by: NWS San Angelo, TX

County Schleicher County, TX

The radar

The San Angelo radar (KSJT), 59 km from the middle of the area, began a volume at 21:16 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 12:00Z, 9.2 hours before the alert went out and 168 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: 805 J/kg
Mixed-layer CIN: -62 J/kg
Mixed-layer LCL: 1066 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -41 m²/s²
0-3 km storm-relative helicity: 75 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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
Aug 26, 8:02 PM CDT	Special Weather Statement	SJT	Tom Green	28 min
Aug 26, 8:23 PM CDT	Special Weather Statement	SJT	Tom Green	37 min
Aug 27, 2:29 PM CDT	Special Weather Statement	SJT	Tom Green	61 min
Aug 27, 4:25 PM CDT	Special Weather Statement	SJT	Irion	35 min
Aug 27, 5:02 PM CDT	Special Weather Statement	SJT	Brown	28 min
Aug 27, 5:10 PM CDT	Special Weather Statement	SJT	Coleman	65 min
Aug 27, 6:53 PM CDT	Special Weather Statement	SJT	McCulloch	37 min

Nearby

Special Weather Statements in Texas, 2012 Every 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.