Alert archive / Texas / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 184, NWS San Angelo, TX

May 2, 2007Mason County, San Saba County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at May 2, 2007, 5:21 PM CDT for Mason County, San Saba County, Texas. It was in force for 54 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: May 2, 2007, 5:21 PM CDT (22:21 UTC)
Expired: May 2, 2007, 6:15 PM CDT
In force: 54 min
Issued by: NWS San Angelo, TX
Area: Counties, with a storm outline in the text

Counties Mason County, TX, San Saba County, TX

The radar

The San Angelo radar (KSJT), 148 km from the middle of the area, began a volume at 22:23 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
May 2, 12:50 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 10.4 hours before the alert went out and 247 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: 1853 J/kg
Mixed-layer CIN: -114 J/kg
Mixed-layer LCL: 603 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 46 m²/s²
0-3 km storm-relative helicity: 137 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.1

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 May 2, 3:02 PM CDT, 2 hours 19 minutes earlier.

Area forecast discussion, May 2, 3:02 PM CDT, 2 hours 19 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
302 PM CDT WED MAY 2 2007

.SHORT TERM...
A VERY BUSY DAY ACROSS WEST CENTRAL TEXAS AS SEVERE MCS IS MOVING
EAST ACROSS THE AREA. THERE HAS BEEN EMBEDDED SUPERCELLS WITH
STRONG MESOS IN THIS LINE. LOOKS LIKE THIS COMPLEX WILL MOVE
CONTINUE EAST AND MAY EXIT MOST OF THE AREA BY 03/06Z. THE
SOUTHERN PART OF THE LINE MAY STILL INTENSIFY ALONG THE I-10
CORRIDOR LATE THIS AFTERNOON AND EVENING WITH BETTER INSTABILITY
ACROSS THIS AREA.

.LONG TERM...
LOOKS LIKE A QUIETER DAY ON THURSDAY WITH UPPER LEVEL SHORT WAVE RIDGE.
HOWEVER...STILL GOOD INSTABILITY FOR AT LEAST SOME ISOLD TSTMS ON
THURSDAY. LOOKS MAINLY DRY FOR FRIDAY. WEEKEND INTO EARLY NEXT
WEEK STILL LOOKS INTERESTING. HIGHLY AMPLIFIED UPPER LEVEL TROF
OVER THE ROCKIES WITH UPPER LEVEL SOUTHWEST FLOW OVER THE SOUTHERN
PLAINS. DRYLINE WILL SET UP ACROSS WESTERN TEXAS SATURDAY THROUGH
NEXT MONDAY. GOING WITH SLGT CHC TO CHC POPS ACROSS THE CWFA
SATURDAY THROUGH NEXT MONDAY.

.PRELIMINARY POINT TEMPS/POPS...
ABILENE 	 61  83  65  89 /  80  20  10  10
SAN ANGELO 	 63  86  65  90 /  70  20  10  10
JUNCTION 	 64  85  65  89 /  80  30  10  10

&&

.SJT WATCHES/WARNINGS/ADVISORIES...
FLASH FLOOD WATCH UNTIL MIDNIGHT CDT TONIGHT FOR BROWN-CALLAHAN-
COKE-COLEMAN-CONCHO-CROCKETT-FISHER-IRION-JONES-KIMBLE-MASON-
MCCULLOCH-MENARD-NOLAN-RUNNELS-SAN SABA-SCHLEICHER-SHACKELFORD-
STERLING-SUTTON-TAYLOR-TOM GREEN.

&&

21

Hazardous weather outlook, May 2, 3:15 PM CDT, 2 hours 6 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
315 PM CDT WED MAY 2 2007

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-
140-154-155-168>170-032015-
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-
315 PM CDT WED MAY 2 2007

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

A COMPLEX OF THUNDERSTORMS WILL CONTINUE MOVING EAST ACROSS MAINLY
THE HEARTLAND...NORTHWEST HILL COUNTRY AND NORTHERN EDWARDS
PLATEAU THROUGH THIS EVENING. SOME OF THESE STORMS WILL BE SEVERE
WITH LARGE HAIL AND DAMAGING WINDS. ALSO...ISOLATED TORNADOES ARE
POSSIBLE. MORE THUNDERSTORMS MAY DEVELOP ACROSS THE WESTERN
SECTIONS OF WEST CENTRAL TEXAS LATER TONIGHT. A FEW OF THESE
STORMS MAY BE SEVERE. IN ADDITION...FLASH FLOODING IS A
POSSIBILITY.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

ANOTHER UPPER LEVEL SYSTEM WILL AFFECT WEST CENTRAL TEXAS THIS
WEEKEND AND INTO THE FIRST OF THE COMING WEEK. STRONG STORMS MAY
ONCE AGAIN DEVELOP SATURDAY AS AN UNSTABLE AIRMASS CONTINUES TO
DOMINATE THE LOCAL WEATHER PICTURE THROUGH AT LEAST TUESDAY.
GIVEN THE SATURATED SOILS OVER VIRTUALLY ALL OF WEST CENTRAL
TEXAS...FLASH FLOODING IS A DISTINCT POSSIBILITY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE REQUIRED THIS AFTERNOON AND TONIGHT.

In the hours before

Local storm report, May 2, 4:31 PM CDT, 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
431 PM CDT WED MAY 02 2007

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

0402 PM     TSTM WND GST     7 N BROWNWOOD           31.81N 98.99W
05/02/2007  M58 MPH          BROWN              TX   AMATEUR RADIO

            MEASURED BY THE AWOS

&&

LHIESLER

Special weather statement, May 2, 4:34 PM CDT, 47 minutes before

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Local storm report, May 2, 4:48 PM CDT, 33 minutes before

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Local storm report, May 2, 4:49 PM CDT, 32 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
449 PM CDT WED MAY 02 2007

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

0406 PM     TSTM WND DMG     BROWNWOOD               31.71N 98.99W
05/02/2007                   BROWN              TX   AMATEUR RADIO

            PORTION OF AN APARTMENT COMPLEX WALL COLLAPSED

&&

LHIESLER

Special weather statement, May 2, 5:14 PM CDT, 7 minutes before

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Local storm report, May 2, 5:19 PM CDT, 2 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
May 1, 7:40 PM CDT	Severe Thunderstorm Warning	SJT	Kimble, Mason	65 min
May 1, 8:43 PM CDT	Severe Thunderstorm Warning	SJT	Kimble	51 min
May 1, 10:55 PM CDT	Severe Thunderstorm Warning	SJT	Sutton	65 min
May 2, 2:01 AM CDT	Severe Thunderstorm Warning	SJT	Crockett	29 min
May 2, 2:29 AM CDT	Severe Thunderstorm Warning	SJT	Crockett	31 min
May 2, 9:08 AM CDT	Flash Flood Watch	SJT	Brown, Callahan, Coke, Coleman, Concho, Crockett and 16 more	13 hr
May 2, 11:53 AM CDT	Tornado Warning	SJT	Irion, Sterling, Tom Green	67 min
May 2, 12:49 PM CDT	Tornado Warning	SJT	Coke, Runnels, Sterling, Tom Green	56 min
May 2, 12:54 PM CDT	Severe Thunderstorm Warning	SJT	Crockett, Irion, Schleicher, Tom Green	66 min
May 2, 12:56 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Nolan	64 min
May 2, 1:28 PM CDT	Severe Thunderstorm Warning	SJT	Jones, Taylor	47 min
May 2, 1:42 PM CDT	Tornado Warning	SJT	Coke, Runnels, Tom Green	48 min
May 2, 1:55 PM CDT	Severe Thunderstorm Warning	SJT	Concho, Crockett, Irion, Menard, Schleicher, Tom Green	48 min
May 2, 2:05 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Shackelford	55 min
May 2, 2:09 PM CDT	Tornado Warning	SJT	Coke, Runnels	36 min
May 2, 2:28 PM CDT	Severe Thunderstorm Warning	SJT	Coleman, Runnels	32 min
May 2, 2:39 PM CDT	Tornado Warning	SJT	Coleman, Concho, McCulloch	36 min
May 2, 2:41 PM CDT	Tornado Warning	SJT	Callahan, Coleman, Runnels, Taylor	34 min
May 2, 2:54 PM CDT	Severe Thunderstorm Warning	SJT	Coleman, Runnels	36 min
May 2, 3:11 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Coleman, Runnels, Taylor	34 min
May 2, 3:11 PM CDT	Severe Thunderstorm Warning	SJT	Sutton	34 min
May 2, 3:14 PM CDT	Tornado Warning	SJT	Brown, Coleman, McCulloch, San Saba	46 min
May 2, 3:22 PM CDT	Severe Thunderstorm Warning	SJT	Schleicher	38 min
May 2, 3:30 PM CDT	Severe Thunderstorm Warning	SJT	Brown, Callahan, Coleman, Taylor	60 min
May 2, 3:39 PM CDT	Tornado Warning	SJT	Sutton	51 min
May 2, 3:53 PM CDT	Tornado Warning	SJT	Brown, McCulloch, San Saba	37 min
May 2, 3:54 PM CDT	Tornado Warning	SJT	Menard, Schleicher	36 min
May 2, 4:25 PM CDT	Severe Thunderstorm Warning	SJT	Concho, Menard	35 min
May 2, 4:28 PM CDT	Tornado Warning	SJT	Kimble, Sutton	32 min
May 2, 4:56 PM CDT	Tornado Warning	SJT	Kimble	49 min
May 2, 5:41 PM CDT	Tornado Warning	SJT	Kimble, Mason	34 min

Nearby

Severe Thunderstorm Warnings in Texas, 2007 Every severe thunderstorm warning in 2007

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.