Alert archive / Texas / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 236, NWS San Angelo, TX

June 19, 20084 counties in Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Jun 19, 2008, 11:27 PM CDT for 4 counties in Texas. It was in force for 48 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: Jun 19, 2008, 11:27 PM CDT (04:27 UTC)
Expired: Jun 20, 2008, 12:15 AM CDT
In force: 48 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon

Counties Brown County, TX, Callahan County, TX, Coleman County, TX, Runnels County, TX

The radar

The Dyess AFB radar (KDYX), 71 km from the middle of the area, began a volume at 04:29 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
Jun 19, 7:09 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 4.5 hours before the alert went out and 227 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: 1093 J/kg
Mixed-layer CIN: -138 J/kg
Mixed-layer LCL: 1446 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: -1 m²/s²
0-3 km storm-relative helicity: 70 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

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 Jun 19, 11:12 PM CDT, 15 minutes earlier.

Area forecast discussion, Jun 19, 11:12 PM CDT, 15 minutes before

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Hazardous weather outlook, Jun 19, 3:30 PM CDT, 7 hours 57 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
330 PM CDT THU JUN 19 2008

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-
140-154-155-168>170-202030-
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-
330 PM CDT THU JUN 19 2008

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

ANOTHER COMPLEX OF THUNDERSTORMS IS EXPECTED TO DEVELOP TONIGHT
FROM THE TEXAS PANHANDLE INTO NORTHWEST TEXAS. THIS COMPLEX OF
THUNDERSTORMS WOULD LIKELY AFFECT THE BIG COUNTRY AND HEARTLAND
AREAS...AND COULD EXTEND FARTHER TO THE WEST INTO THE CONCHO
VALLEY...MAINLY AFTER MIDNIGHT. SOME OF THESE THUNDERSTORMS MAY BE
SEVERE NORTH OF AN OZONA...TO SAN ANGELO...TO BROWNWOOD LINE. THE
MAIN THREATS WILL BE LARGE HAIL AND DAMAGING WINDS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THERE WILL BE A SLIGHT CHANCE OF THUNDERSTORMS ACROSS THE
NORTHERN 2/3 OF WEST CENTRAL TEXAS ON FRIDAY. OTHERWISE...NO
HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUESTED TONIGHT...MAINLY ACROSS THE BIG
COUNTRY...CONCHO VALLEY AND HEARTLAND.

In the hours before

Local storm report, Jun 19, 10:41 PM CDT, 46 minutes before

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Local storm report, Jun 19, 10:49 PM CDT, 38 minutes before

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Special weather statement, Jun 19, 10:55 PM CDT, 32 minutes before

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Local storm report, Jun 19, 11:06 PM CDT, 21 minutes before

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Local storm report, Jun 19, 11:17 PM CDT, 10 minutes before

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Special weather statement, Jun 19, 11:21 PM CDT, 6 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
Jun 19, 7:33 PM CDT	Severe Thunderstorm Warning	SJT	Haskell, Throckmorton	57 min
Jun 19, 8:12 PM CDT	Tornado Warning	SJT	Haskell, Throckmorton	48 min
Jun 19, 8:55 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Haskell, Jones, Nolan, Taylor	65 min
Jun 19, 9:32 PM CDT	Severe Thunderstorm Warning	SJT	Haskell, Shackelford, Throckmorton	58 min
Jun 19, 9:43 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Coke, Coleman, Jones, Nolan, Runnels and 2 more	62 min
Jun 19, 10:23 PM CDT	Flash Flood Warning	SJT	Haskell, Jones, Shackelford, Throckmorton	2 hr
Jun 19, 10:43 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Coleman, Jones, Shackelford, Taylor	47 min
Jun 19, 11:44 PM CDT	Areal Flood Advisory	SJT	Brown, Callahan, Coleman, Runnels, Taylor	2 hr
Jun 20, 12:26 AM CDT	Areal Flood Advisory	SJT	Jones	2 hr
Jun 20, 5:40 AM CDT	Areal Flood Advisory	SJT	Kimble	2 hr

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.