Alert archive / Texas / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 20, NWS San Angelo, TX

March 3, 2008McCulloch County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Mar 3, 2008, 2:49 AM CST for McCulloch County, Texas. It was in force for 26 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: Mar 3, 2008, 2:49 AM CST (08:49 UTC)
Expired: Mar 3, 2008, 3:15 AM CST
In force: 26 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon

County McCulloch County, TX

The radar

The San Angelo radar (KSJT), 110 km from the middle of the area, began a volume at 08:53 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Mar 2, 11:27 PM CST	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 8.8 hours before the alert went out and 266 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: 1534 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 836 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 210 m²/s²
0-3 km storm-relative helicity: 335 m²/s²
Significant tornado parameter: 2.3
Supercell composite: 10.5

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 Mar 3, 2:17 AM CST, 32 minutes earlier.

Area forecast discussion, Mar 3, 2:17 AM CST, 32 minutes before

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Hazardous weather outlook, Mar 2, 6:23 PM CST, 8 hours 26 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE SAN ANGELO TX
623 PM CST SUN MAR 2 2008

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-
140-154-155-168>170-040030-
FISHER-NOLAN-STERLING-COKE-RUNNELS-IRION-TOM GREEN-CONCHO-
CROCKETT-SCHLEICHER-SUTTON-HASKELL-THROCKMORTON-JONES-SHACKELFORD-
TAYLOR-CALLAHAN-COLEMAN-BROWN-MCCULLOCH-SAN SABA-MENARD-KIMBLE-
MASON-
623 PM CST SUN MAR 2 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WEST CENTRAL
TEXAS.

.DAY ONE...TONIGHT

A TORNADO WATCH IS IN EFFECT FOR CALLAHAN... SHACKELFORD... AND
THROCKMORTON COUNTIES TONIGHT THROUGH 2 AM.

IN ADDITION.... SCATTERED SHOWERS AND THUNDERSTORMS WILL BE
POSSIBLE TONIGHT GENERALLY ALONG AND EAST OF A LINE FROM HASKELL
TO SONORA. MORE NUMEROUS THUNDERSTORMS ARE EXPECTED LATE TONIGHT
AS A POWERFUL COLD FRONT MOVES THROUGH AND THE UPPER LEVEL STORM
SYSTEM MOVES ACROSS THE REGION. THE BEST CHANCE FOR THESE
THUNDERSTORMS WILL BE SOUTH AND EAST OF A LINE FROM ABILENE TO
SONORA. SOME OF THESE THUNDERSTORMS MAY ALSO BE SEVERE WITH THE
MAIN THREATS BEING LARGE HAIL AND DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THE UPPER LEVEL STORM SYSTEM WILL CONTINUE TO MOVE EAST ACROSS
THE BIG COUNTRY ON MONDAY. MONDAY MORNING RAIN SHOWERS ACROSS THE
BIG COUNTRY MAY CHANGE TO SNOW SHOWERS AS THE COLD AIR WITH THESE
SYSTEMS MOVES IN. LITTLE TO NO SNOW ACCUMULATION IS EXPECTED.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THIS EVENING AND OVERNIGHT.

In the hours before

Local storm report, Mar 2, 10:46 PM CST, 4 hours 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
1046 PM CST SUN MAR 02 2008

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1005 PM     HAIL             WOODSON                 33.01N 99.05W
03/02/2008  E1.00 INCH       THROCKMORTON       TX   LAW ENFORCEMENT

&&

SN

Special weather statement, Mar 2, 11:44 PM CST, 3 hours 5 minutes before

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Special weather statement, Mar 3, 12:34 AM CST, 2 hours 15 minutes before

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Special weather statement, Mar 3, 1:16 AM CST, 1 hour 33 minutes before

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Local storm report, Mar 3, 1:34 AM CST, 1 hour 15 minutes before

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Local storm report, Mar 3, 2:16 AM CST, 33 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
Mar 2, 8:15 PM CST	Wind Advisory	SJT	Brown, Callahan, Coke, Coleman, Concho, Crockett and 18 more	22 hr
Mar 2, 9:02 PM CST	Severe Thunderstorm Warning	SJT	Callahan, Jones, Shackelford, Taylor	43 min
Mar 2, 9:40 PM CST	Severe Thunderstorm Warning	SJT	Shackelford, Throckmorton	50 min
Mar 2, 10:05 PM CST	Severe Thunderstorm Warning	SJT	Shackelford	40 min
Mar 2, 11:21 PM CST	Severe Thunderstorm Warning	SJT	Coke, Nolan	54 min
Mar 2, 11:54 PM CST	Severe Thunderstorm Warning	SJT	Irion, Sterling, Tom Green	36 min
Mar 3, 1:11 AM CST	Severe Thunderstorm Warning	SJT	Runnels	44 min
Mar 3, 1:36 AM CST	Severe Thunderstorm Warning	SJT	Schleicher, Tom Green	39 min
Mar 3, 1:44 AM CST	Severe Thunderstorm Warning	SJT	Coleman, Runnels	61 min
Mar 3, 2:17 AM CST	Severe Thunderstorm Warning	SJT	Concho, McCulloch, Menard	28 min
Mar 3, 2:32 AM CST	Severe Thunderstorm Warning	SJT	Brown	28 min
Mar 3, 2:54 AM CST	Severe Thunderstorm Warning	SJT	McCulloch, San Saba	36 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.