Alert archive / Texas / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 81, NWS San Angelo, TX

April 25, 2006Coleman County, McCulloch County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Apr 25, 2006, 6:40 PM CDT for Coleman County, McCulloch County, Texas. It was in force for 40 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: Apr 25, 2006, 6:40 PM CDT (23:40 UTC)
Expired: Apr 25, 2006, 7:20 PM CDT
In force: 40 min
Issued by: NWS San Angelo, TX
Area: Counties, with a storm outline in the text

Counties Coleman County, TX, McCulloch County, TX

The radar

The San Angelo radar (KSJT), 104 km from the middle of the area, began a volume at 23:42 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

Del Rio, TX (KDRT), launched 12:00Z, 11.7 hours before the alert went out and 273 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: 1866 J/kg
Mixed-layer CIN: -326 J/kg
Mixed-layer LCL: 1057 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 190 m²/s²
0-3 km storm-relative helicity: 181 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 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 Apr 25, 6:37 PM CDT, 3 minutes earlier.

Area forecast discussion, Apr 25, 6:37 PM CDT, 3 minutes before

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Hazardous weather outlook, Apr 25, 2:01 PM CDT, 4 hours 39 minutes before

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In the hours before

Special weather statement, Apr 25, 4:20 PM CDT, 2 hours 20 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
420 PM CDT TUE APR 25 2006

TXZ139-140-252215-
COLEMAN TX-BROWN TX-
420 PM CDT TUE APR 25 2006

...SIGNIFICANT WEATHER ALERT EFFECTIVE UNTIL 515 PM CDT FOR COLEMAN
AND BROWN COUNTIES...

AT 417 PM CDT...A STRONG THUNDERSTORM WAS INDICATED BY NATIONAL
WEATHER SERVICE DOPPLER RADAR 5 MILES WEST OF COLEMAN...MOVING
NORTHEAST AT 25 MPH.

* THE STRONG THUNDERSTORM WILL BE NEAR...
  ECHO BY 440 PM CDT
  BURKETT BY 455 PM CDT
  CROSS CUT BY 510 PM CDT
  US-183 NEAR THE BROWN-EASTLAND COUNTY LINE...LAKE BROWNWOOD NEAR
  BYRDS STORE AND MAY BY 515 PM CDT

PEA SIZE HAIL AND WIND GUSTS TO 50 MPH ARE LIKELY WITH THIS
STORM...ALONG WITH DANGEROUS CLOUD TO GROUND LIGHTNING. HEAVY
RAINFALL WILL CAUSE PONDING OF WATER ON ROADWAYS...ESPECIALLY IN
POOR DRAINAGE AREAS. RESIDENTS ARE ENCOURAGED TO MONITOR THE
SITUATION CLOSELY AND BE PREPARED TO TAKE THE PROPER ACTIONS SHOULD
A WARNING BE ISSUED.

Local storm report, Apr 25, 5:52 PM CDT, 48 minutes before

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Local storm report, Apr 25, 5:53 PM CDT, 47 minutes before

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Local storm report, Apr 25, 6:17 PM CDT, 23 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
Apr 24, 7:44 PM CDT	Severe Thunderstorm Warning	SJT	Crockett	46 min
Apr 24, 8:30 PM CDT	Severe Thunderstorm Warning	SJT	Crockett, Sutton	30 min
Apr 25, 4:41 PM CDT	Severe Thunderstorm Warning	SJT	Tom Green	34 min
Apr 25, 4:45 PM CDT	Severe Thunderstorm Warning	SJT	Brown, Coleman	30 min
Apr 25, 4:52 PM CDT	Severe Thunderstorm Warning	SJT	Brown	38 min
Apr 25, 5:11 PM CDT	Severe Thunderstorm Warning	SJT	Brown	49 min
Apr 25, 5:20 PM CDT	Severe Thunderstorm Warning	SJT	Concho, Tom Green	55 min
Apr 25, 5:53 PM CDT	Severe Thunderstorm Warning	SJT	Brown	27 min
Apr 25, 6:09 PM CDT	Severe Thunderstorm Warning	SJT	Coleman, Concho	51 min

Nearby

Severe Thunderstorm Warnings in Texas, 2006 Every severe thunderstorm warning in 2006

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.