Alert archive / Texas / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 111, NWS San Angelo, TX

May 22, 2011Fisher County, Nolan County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at May 22, 2011, 5:49 PM CDT for Fisher County, Nolan County, Texas. It was in force for 41 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 22, 2011, 5:49 PM CDT (22:49 UTC)
Expired: May 22, 2011, 6:30 PM CDT
In force: 41 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon

Counties Fisher County, TX, Nolan County, TX

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 22, 2:48 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 10.8 hours before the alert went out and 181 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3563 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 102 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 22, 3:29 PM CDT, 2 hours 20 minutes earlier.

Area forecast discussion, May 22, 3:29 PM CDT, 2 hours 20 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
329 PM CDT SUN MAY 22 2011

.SHORT TERM...
THE MAIN WEATHER CONCERN FOR THE SHORT TERM WILL BE A GOOD CHANCE
FOR SEVERE THUNDERSTORMS WITH LARGE HAIL THIS AFTERNOON AND TONIGHT.
EARLY THIS AFTERNOON...THE DRYLINE WAS LOCATED OVER WEST TEXAS FROM
NEAR VERNON TO EAST OF SNYDER TO FORT STOCKTON. AHEAD OF THE
DRYLINE...SIGNIFICANT LOW LEVEL MOISTURE WAS IN PLACE OVER WEST
CENTRAL TEXAS WITH DEWPOINTS IN THE 70S. THE ATMOSPHERE IS
CONTINUING TO DESTABILIZE WITH AFTERNOON CAPE VALUES OVER 5000
J/KG. EXPECT STORMS TO DEVELOP ALONG THE DRYLINE BY MID AFTERNOON
AND HEAD EASTWARD ACROSS MAINLY THE BIG COUNTRY AND CONCHO VALLEY.
WITH DECENT SHEAR AND STRONG INSTABILITY...EXPECT HAIL AND HIGH
WINDS TO BE THE MAIN THREATS. CAN NOT RULE OUT SUPERCELLS WITH
ISOLATED TORNADOES ALSO POSSIBLE. STORM THREAT SHOULD CONTINUE INTO
THE EVENING/OVERNIGHT HOURS AS A LOW LEVEL JET DEVELOPS OVERNIGHT.
ALOFT...SHORTWAVE TROUGH OVER SOUTHERN NEW MEXICO WILL HEAD EASTWARD
ACROSS THE AREA OVERNIGHT ENHANCING INSTABILITY AND SHEAR. STORMS
SHOULD CONTINUE OVERNIGHT AS THE DRYLINE MIXES EAST ACROSS WEST
CENTRAL TEXAS. WILL SEE LINGERING STORMS ACROSS THE EASTERN
COUNTIES FOR THE EARLY PART OF TUESDAY...BEFORE STORMS FINALLY HEAD
OUT OF THE AREA. BEHIND THE DRYLINE TOMORROW AFTERNOON...WILL SEE AN
ELEVATED FIRE DANGER MAINLY FAR WESTERN COUNTIES WITH GUSTY WEST
WINDS AND LOW RELATIVE HUMIDITY VALUES. AFTERNOON HIGHS WILL BE ONLY
SLIGHTLY COOLER TOMORROW WITH MID 90S EXPECTED ACROSS THE AREA.

.FIRE WEATHER...
ELEVATED TO CRITICAL FIRE WEATHER CONDITIONS POSSIBLE BOTH MONDAY
AND TUESDAY AS A DRYLINE MIXES EAST ACROSS THE AREA. MOST LIKELY
AREA FOR CRITICAL CONDITIONS WILL BE ACROSS THE BIG COUNTRY AND
WESTERN CONCHO VALLEY WHERE 20 FOOT WIND SPEEDS WILL BE AROUND 20
MPH. A COLD FRONT WILL MOVE THROUGH WEDNESDAY NIGHT WHICH WILL EASE
FIRE WEATHER CONCERNS THROUGH FRIDAY.

.LONG TERM...
THE FLOW ALOFT OVER THE FORECAST AREA WILL BECOME PRIMARILY ZONAL
BY TUESDAY AS WE SIT AT THE BASE OF WEAK UPPER RIDGING OVER THE
CENTRAL PLAINS. AS AN UPPER LOW OVER THE NORTHWESTERN STATES DIGS
SOUTHEAST INTO THE CENTRAL PLAINS BY WEDNESDAY THE FLOW ALOFT WILL
VEER TO THE NORTHWEST WITH A COLD FRONT PUSHING THROUGH THE AREA
LATE IN THE THE DAY ON WEDNESDAY. A PRE-FRONTAL DRYLINE MOVING
OVER THE EASTERN COUNTIES TUESDAY AFTERNOON SHOULD KICK OFF
AFTERNOON THUNDERSTORMS AROUND TIME OF MAX HEATING...NAM HAS THE
850MB THERMAL RIDGE BISECTING THE FORECAST AREA ON TUESDAY WITH
AFTERNOON HIGHS IN THE UPPER 90S TO THE TRIPLE DIGITS OVER ALL OF
THE CWA. ACTIVITY SHOULD TAPER OFF QUICKLY AFTER SUNSET. MODELS
ARE SUGGESTING A SIGNIFICANT POST- FRONTAL COOL- OFF ON THURSDAY...HAVE
KEPT HIGHS A FEW DEGREES WARMER THAN GUIDANCE...STILL...BIG
COUNTRY HIGHS IN THE UPPER 70S WILL BE 10 DEGREES COOLER THAN
CLIMO. FOR THE REMAINDER OF THE EXTENDED...UPPER RIDGING OVER THE
WESTERN STATES WILL BUILD OVER THE FORECAST AREA INTO THE COMING
WEEKEND WITH DRY WEATHER AND WARMING TEMPERATURES.

&&

.PRELIMINARY POINT TEMPS/POPS...
ABILENE 	 71  92  67  99  62 /  40  20  10  10  10
SAN ANGELO 	 73  94  65 102  58 /  30  10  10  10  10
JUNCTION 	 72  94  75  98  73 /  20  20  10  10  20

&&

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

15

Hazardous weather outlook, May 22, 1:13 PM CDT, 4 hours 36 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
113 PM CDT SUN MAY 22 2011

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-
140-154-155-168>170-231815-
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-
113 PM CDT SUN MAY 22 2011

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

SCATTERED THUNDERSTORMS WILL LIKELY DEVELOP ACROSS MUCH OF WEST
CENTRAL TEXAS THIS AFTERNOON AND TONIGHT. DUE TO STRONG
INSTABILITY...SOME STORMS MAY BECOME SEVERE... WITH THE MAIN THREAT
BEING VERY LARGE HAIL...LARGER THAN GOLFBALLS POSSIBLE.
ALSO...STRONG DAMAGING WINDS ARE POSSIBLE.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THUNDERSTORMS WILL BE POSSIBLE EARLY TUESDAY ACROSS THE EASTERN
BIG COUNTRY AND HEARTLAND. A FEW STORMS MAY BECOME SEVERE.
ALSO...ELEVATED TO NEAR CRITICAL FIRE WEATHER CONDITIONS ARE
EXPECTED TUESDAY AFTERNOON ACROSS THE BIG COUNTRY AND WESTERN
CONCHO VALLEY AS STRONG SOUTHWEST WINDS COMBINE WITH VERY LOW
RELATIVE HUMIDITY VALUES.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL LIKELY BE REQUIRED THIS AFTERNOON AND TONIGHT.

08

In the hours before

Local storm report, May 22, 5:28 PM CDT, 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
528 PM CDT SUN MAY 22 2011

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

0520 PM     TSTM WND GST     BAIRD                   32.40N  99.40W
05/22/2011  E60 MPH          CALLAHAN           TX   TRAINED SPOTTER

&&

EVENT NUMBER SJT1100188

19

Local storm report, May 22, 5:29 PM CDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
529 PM CDT SUN MAY 22 2011

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

0529 PM     HAIL             ALBANY                  32.73N  99.30W
05/22/2011  E2.75 INCH       SHACKELFORD        TX   TRAINED SPOTTER

            REPORT WAS RELAYED BY ABILENE POLICE DEPT.

&&

EVENT NUMBER SJT1100189

19

Special weather statement, May 22, 5:32 PM CDT, 17 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
532 PM CDT SUN MAY 22 2011

TXZ054-222315-
NOLAN TX-
532 PM CDT SUN MAY 22 2011

...SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 615 PM CDT FOR NOLAN
COUNTY...

AT 526 PM CDT...A STRONG THUNDERSTORM WAS INDICATED BY NATIONAL
WEATHER SERVICE DOPPLER RADAR 4 MILES SOUTHWEST OF CHAMPION...OR
ABOUT 11 MILES SOUTHWEST OF ROSCOE...MOVING NORTHEAST AT 25 MPH.

* THE STRONG THUNDERSTORM WILL BE NEAR...
  THE INTERSECTION OF RANCH ROAD 608 AND HIGHWAY 147 BY 545 PM CDT
  ROSCOE BY 555 PM CDT
  SWEETWATER BY 610 PM CDT
  LAKE SWEETWATER BY 615 PM CDT

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE
INDOORS IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

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 1000 PM CDT
SUNDAY EVENING FOR WEST CENTRAL TEXAS.

12

Local storm report, May 22, 5:34 PM CDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE SAN ANGELO TX
534 PM CDT SUN MAY 22 2011

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

0526 PM     HAIL             BAIRD                   32.40N  99.40W
05/22/2011  E1.75 INCH       CALLAHAN           TX   LAW ENFORCEMENT

            REPORT WAS RELAYED BY ABILENE POLICE DEPT.

&&

CORRECTED EVENT TIME...REMARKS

EVENT NUMBER SJT1100187

19

Local storm report, May 22, 5:38 PM CDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
538 PM CDT SUN MAY 22 2011

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

0536 PM     HAIL             2 NE ECHO               31.94N  99.30W
05/22/2011  E1.75 INCH       COLEMAN            TX   TRAINED SPOTTER

            GOLFBALL SIZE HAIL WAS CRACKING WINDOWS AT A RESIDENCE.

&&

EVENT NUMBER SJT1100190

19

Local storm report, May 22, 5:46 PM CDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
546 PM CDT SUN MAY 22 2011

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

0545 PM     HAIL             2 E ECHO                31.93N  99.28W
05/22/2011  E1.00 INCH       COLEMAN            TX   TRAINED SPOTTER

            QUARTER SIZE HAIL WAS REPORTED

&&

EVENT NUMBER SJT1100191

19

The office that day

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

Issued	Product	Office	Counties	Lasted
May 21, 7:12 PM CDT	Severe Thunderstorm Warning	SJT	San Saba	48 min
May 22, 4:04 PM CDT	Severe Thunderstorm Warning	SJT	Nolan, Taylor	41 min
May 22, 4:08 PM CDT	Severe Thunderstorm Warning	SJT	Jones, Shackelford	52 min
May 22, 4:33 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Coleman, Runnels	42 min
May 22, 4:37 PM CDT	Severe Thunderstorm Warning	SJT	Haskell, Jones	38 min
May 22, 4:50 PM CDT	Severe Thunderstorm Warning	SJT	Throckmorton	40 min
May 22, 4:55 PM CDT	Severe Thunderstorm Warning	SJT	Callahan	50 min
May 22, 5:02 PM CDT	Severe Thunderstorm Warning	SJT	Jones, Shackelford, Throckmorton	43 min
May 22, 5:11 PM CDT	Severe Thunderstorm Warning	SJT	Brown, Callahan, Coleman	49 min
May 22, 5:40 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Shackelford	20 min
May 22, 5:52 PM CDT	Severe Thunderstorm Warning	SJT	Brown	38 min
May 22, 6:03 PM CDT	Tornado Warning	SJT	Brown	27 min
May 22, 6:06 PM CDT	Severe Thunderstorm Warning	SJT	Callahan	39 min
May 22, 6:25 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Jones	38 min
May 22, 6:28 PM CDT	Tornado Warning	SJT	Brown	47 min
May 22, 6:43 PM CDT	Severe Thunderstorm Warning	SJT	Callahan	47 min
May 22, 6:55 PM CDT	Severe Thunderstorm Warning	SJT	Haskell, Jones	16 min
May 22, 6:59 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Shackelford	46 min

Nearby

Severe Thunderstorm Warnings in Texas, 2011 Every severe thunderstorm warning in 2011

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.