Alert archive / Texas / Special Weather Statements in 2012

Special Weather Statement, NWS San Angelo, TX

May 7, 2012Nolan County, Texas

NWS San Angelo, TX issued this special weather statement at May 7, 2012, 3:25 PM CDT for Nolan County, Texas. It was in force for 50 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: May 7, 2012, 3:25 PM CDT (20:25 UTC)
Expired: May 7, 2012, 4:15 PM CDT
In force: 50 min
Issued by: NWS San Angelo, TX

County Nolan County, TX

The radar

The Dyess AFB radar (KDYX), 110 km from the middle of the area, began a volume at 20:29 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 nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 8.4 hours before the alert went out and 175 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: 1136 J/kg
Mixed-layer CIN: -273 J/kg
Mixed-layer LCL: 1187 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 238 m²/s²
0-3 km storm-relative helicity: 220 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at May 7, 12:04 PM CDT, 3 hours 21 minutes earlier.

Area forecast discussion, May 7, 12:04 PM CDT, 3 hours 21 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
1204 PM CDT MON MAY 7 2012

.AVIATION...
/18Z UPDATE/

MAINLY VFR CONDITIONS ARE EXPECTED THROUGH THIS EVENING.
HOWEVER...SOME AREAS OF LOW END VFR CIGS WILL DEVELOP THIS
AFTERNOON. CEILINGS SHOULD DEGRADE TO MVFR AT ALL TERMINALS BY
12Z TOMORROW. ISOLD TO SCT TSTMS ARE POSSIBLE ACROSS THE SOUTHERN
TERMINALS AFTER 19Z. A FEW STORMS MAY BE SEVERE. MORE WIDESPREAD
-RA WILL DEVELOP ACROSS THE SOUTHERN TERMINALS TONIGHT. WINDS
WILL BE NORTH TO NORTHEAST AT 5 TO 15 KNOTS.

&&

.PRELIMINARY POINT TEMPS/POPS...
ABILENE 	 60  69  54  74  55 /  50  50  20  10  10
SAN ANGELO 	 63  71  55  74  57 /  70  70  30  20  20
JUNCTION 	 64  76  59  75  57 /  70  70  60  20  20

&&

.SJT WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

15

Hazardous weather outlook, May 7, 4:41 AM CDT, 10 hours 44 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
441 AM CDT MON MAY 7 2012

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-
140-154-155-168>170-080945-
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-
441 AM CDT MON MAY 7 2012

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

.DAY ONE...TODAY AND TONIGHT

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND
TONIGHT...MAINLY ALONG AND SOUTHWEST OF A STERLING CITY TO EDEN TO
JUNCTION LINE. ANY STORMS THAT DEVELOP WILL HAVE THE POTENTIAL TO
BECOME SEVERE. THE MAIN THREATS WILL BE LARGE HAIL...DAMAGING
WINDS AND LOCALLY HEAVY RAINFALL. ALSO...THE STORMS WILL PRODUCE
DANGEROUS CLOUD TO GROUND LIGHTNING.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THERE WILL BE A CHANCE OF THUNDERSTORMS THROUGH MUCH OF THIS WEEK.
A FEW STORMS MAY APPROACH SEVERE LEVELS ALONG THE I-10 CORRIDOR ON
TUESDAY. THE MAIN THREATS WILL BE LARGE HAIL...LOCALLY HEAVY
RAINFALL AND DEADLY LIGHTNING.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NECESSARY SOUTH OF THE I-20 CORRIDOR
THIS AFTERNOON AND TONIGHT.

In the hours before

Local storm report, May 7, 2:07 PM CDT, 1 hour 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
207 PM CDT MON MAY 07 2012

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

0206 PM     HAIL             2 SE SAN ANGELO         31.43N 100.43W
05/07/2012  E1.00 INCH       TOM GREEN          TX   TRAINED SPOTTER

&&

EVENT NUMBER SJT1200136

PM

Local storm report, May 7, 2:14 PM CDT, 1 hour 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
214 PM CDT MON MAY 07 2012

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

0214 PM     HAIL             2 E WALL                31.37N 100.27W
05/07/2012  E0.88 INCH       TOM GREEN          TX   CO-OP OBSERVER

&&

EVENT NUMBER SJT1200137

PM

Local storm report, May 7, 2:22 PM CDT, 1 hour 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
222 PM CDT MON MAY 07 2012

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

0221 PM     HAIL             2 E WALL                31.37N 100.27W
05/07/2012  E1.00 INCH       TOM GREEN          TX   FIRE DEPT/RESCUE

&&

EVENT NUMBER SJT1200138

PM

Local storm report, May 7, 2:35 PM CDT, 50 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
235 PM CDT MON MAY 07 2012

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

0235 PM     HAIL             SHERWOOD                31.28N 100.80W
05/07/2012  E0.88 INCH       IRION              TX   PUBLIC

&&

EVENT NUMBER SJT1200139

PM

Special weather statement, May 7, 2:44 PM CDT, 41 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
244 PM CDT MON MAY 7 2012

TXZ073-072045-
CONCHO TX-
244 PM CDT MON MAY 7 2012

...SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 345 PM CDT FOR CONCHO
COUNTY...

AT 240 PM CDT...STRONG THUNDERSTORMS WERE INDICATED BY NATIONAL
WEATHER SERVICE DOPPLER RADAR OVER WESTERN PORTIONS OF CONCHO
COUNTY. THESE STORMS ARE MOVING NORTHEAST AT 15 MPH.

* LOCATIONS IN THE ALERT INCLUDE BUT ARE NOT LIMITED TO THE
INTERSECTION OF RANCH ROAD 380 AND RANCH ROAD 381...THE
INTERSECTION OF US-87 AND RANCH ROAD 2134...THE INTERSECTION OF
US-83 AND RANCH ROAD 765...THE INTERSECTION OF US-83 AND RANCH
ROAD   1929...PAINT ROCK...MILLERSVIEW...LIVE OAK AND EDEN.

NICKEL SIZE HAIL AND WIND GUSTS TO 50 MPH ARE LIKELY WITH THESE
STORMS. HEAVY RAINFALL WILL CAUSE PONDING OF WATER ON AREA
ROADWAYS...ESPECIALLY THOSE 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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT MONDAY
EVENING FOR WEST CENTRAL TEXAS.

LAT...LON 3156 10009 3157 9986 3132 9962 3114 9961
      3109 9993 3145 10010
TIME...MOT...LOC 1942Z 221DEG 14KT 3129 10002

15

Special weather statement, May 7, 3:25 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
325 PM CDT MON MAY 7 2012

TXZ049-054-072115-
FISHER TX-NOLAN TX-
325 PM CDT MON MAY 7 2012

...SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 415 PM CDT FOR FISHER
AND NOLAN COUNTIES...

AT 317 PM CDT...AN AREA OF STRONG THUNDERSTORMS WERE INDICATED BY
NATIONAL WEATHER SERVICE DOPPLER RADAR 5 MILES NORTH OF
MARYNEAL...TO LONGWORTH...MOVING NORTHEAST AT 20 MPH.

* OTHER LOCATIONS IN THE ALERT INCLUDE BUT ARE NOT LIMITED TO LAKE
  SWEETWATER...WASTELLA...ROSCOE...SWEETWATER.

DIME SIZE HAIL AND WIND GUSTS TO 50 MPH ARE LIKELY WITH THIS STORM.
HEAVY RAINFALL WILL CAUSE PONDING OF WATER ON AREA ROADWAYS...
ESPECIALLY THOSE 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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM CDT MONDAY
EVENING FOR WEST CENTRAL TEXAS.

LAT...LON 3209 10016 3210 10067 3265 10067 3270 10066
      3271 10015
TIME...MOT...LOC 2022Z 217DEG 9KT 3231 10043

The office that day

Everything else NWS San Angelo, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 6, 7:01 PM CDT	Special Weather Statement	SJT	Tom Green	29 min
May 6, 8:43 PM CDT	Special Weather Statement	SJT	Mason	32 min
May 6, 9:01 PM CDT	Special Weather Statement	SJT	Mason	29 min
May 6, 9:27 PM CDT	Special Weather Statement	SJT	Shackelford	33 min
May 6, 9:29 PM CDT	Special Weather Statement	SJT	Mason	61 min
May 6, 9:48 PM CDT	Severe Thunderstorm Warning	SJT	Shackelford	42 min
May 6, 10:18 PM CDT	Severe Thunderstorm Warning	SJT	Menard	42 min
May 6, 10:38 PM CDT	Special Weather Statement	SJT	Shackelford	37 min
May 6, 10:42 PM CDT	Tornado Warning	SJT	Kimble, Menard	33 min
May 6, 11:15 PM CDT	Tornado Warning	SJT	Kimble, Menard	25 min
May 7, 12:48 PM CDT	Severe Thunderstorm Warning	SJT	Irion, Sterling	57 min
May 7, 1:16 PM CDT	Special Weather Statement	SJT	Tom Green	59 min
May 7, 1:23 PM CDT	Severe Thunderstorm Warning	SJT	Irion, Tom Green	52 min
May 7, 1:57 PM CDT	Severe Thunderstorm Warning	SJT	Tom Green	48 min
May 7, 2:02 PM CDT	Severe Thunderstorm Warning	SJT	Irion, Sterling, Tom Green	28 min
May 7, 2:21 PM CDT	Severe Thunderstorm Warning	SJT	Irion, Tom Green	24 min
May 7, 2:40 PM CDT	Flash Flood Warning	SJT	Irion, Tom Green	3 hr
May 7, 2:44 PM CDT	Special Weather Statement	SJT	Concho	61 min
May 7, 2:53 PM CDT	Severe Thunderstorm Warning	SJT	Concho	52 min
May 7, 3:05 PM CDT	Severe Thunderstorm Warning	SJT	Irion, Schleicher, Tom Green	40 min
May 7, 3:12 PM CDT	Areal Flood Advisory	SJT	Concho	3 hr
May 7, 3:34 PM CDT	Severe Thunderstorm Warning	SJT	Mason, Menard	41 min
May 7, 3:35 PM CDT	Special Weather Statement	SJT	Schleicher	55 min
May 7, 3:43 PM CDT	Severe Thunderstorm Warning	SJT	Crockett, Schleicher, Sutton	47 min
May 7, 3:53 PM CDT	Severe Thunderstorm Warning	SJT	McCulloch, Menard	52 min
May 7, 4:03 PM CDT	Special Weather Statement	SJT	Taylor	57 min
May 7, 4:07 PM CDT	Severe Thunderstorm Warning	SJT	McCulloch	38 min
May 7, 4:14 PM CDT	Areal Flood Advisory	SJT	McCulloch	3 hr
May 7, 4:18 PM CDT	Severe Thunderstorm Warning	SJT	Mason	42 min
May 7, 4:55 PM CDT	Severe Thunderstorm Warning	SJT	Mason	20 min
May 7, 5:19 PM CDT	Special Weather Statement	SJT	Crockett	56 min
May 7, 5:34 PM CDT	Special Weather Statement	SJT	San Saba	56 min
May 7, 5:57 PM CDT	Special Weather Statement	SJT	Crockett	63 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.