Tornado Warning 35, NWS San Angelo, TX

000 
WWUS54 KSJT 012150
SVSSJT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
449 PM CDT TUE MAY 1 2007

TXC307-319-411-012230-
/O.CON.KSJT.TO.W.0035.000000T0000Z-070501T2230Z/
MCCULLOCH TX-SAN SABA TX-MASON TX-
449 PM CDT TUE MAY 1 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR
NORTHEASTERN MASON...SOUTHERN SAN SABA AND SOUTHEASTERN MCCULLOCH
COUNTIES...

AT 447 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED 6 MILES NORTH OF
PONTOTOC...OR ABOUT 19 MILES SOUTHWEST OF ALGERITA...MOVING SOUTHEAST
AT 25 MPH. HAIL UP TO BASEBALL SIZE ALSO EXPECTED.

THE TORNADO WILL BE NEAR...
  PONTOTOC BY 500 PM CDT...

IN ADDITION TO THE TORNADO...THIS STORM IS CAPABLE OF PRODUCING
BASEBALL SIZE HAIL AND DESTRUCTIVE STRAIGHT LINE WINDS.

LAT...LON 3122 9909 3089 9920 3080 9897 3093 9896
      3093 9864 3114 9868

$$

000 
WWUS54 KSJT 012214
SVSSJT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
513 PM CDT TUE MAY 1 2007

TXC307-319-411-012230-
/O.CON.KSJT.TO.W.0035.000000T0000Z-070501T2230Z/
MCCULLOCH TX-SAN SABA TX-MASON TX-
513 PM CDT TUE MAY 1 2007

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM CDT FOR
NORTHEASTERN MASON...SOUTHERN SAN SABA AND SOUTHEASTERN MCCULLOCH
COUNTIES...

AT 512 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR PONTOTOC...OR
ABOUT 18 MILES NORTHWEST OF LLANO...MOVING SOUTHEAST AT 25 MPH.

LARGE HAIL AS LARGE AS BASEBALL CAN ALSO BE EXPECTED.

THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF
NORTHEASTERN MASON...SOUTHERN SAN SABA AND SOUTHEASTERN MCCULLOCH
COUNTIES.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 3122 9909 3089 9920 3080 9897 3093 9896
      3093 9864 3114 9868

$$

AREA FORECAST DISCUSSION...CORRECTED
NATIONAL WEATHER SERVICE SAN ANGELO TX
436 PM CDT TUE MAY 1 2007

.DISCUSSION...
THIS AFTERNOON THE UPPER LOW HAS LIFTED INTO NORTH-CENTRAL
OKLAHOMA. SURFACE SURFACE COLD FRONT IS SAGGING SOUTH ACROSS OUR
CENTRAL COUNTIES. WIDELY SCATTERED THUNDERSTORMS COULD DEVELOP
ALONG THIS BOUNDARY ACROSS OUR EAST AND SOUTHEAST COUNTIES AS THE
BOUNDARY CONTINUES TO DRIFT SLOWLY SOUTHWARD. WITH THE MODERATE
INSTABILITY IN THAT AREA ALONG WITH SUFFICIENT VERTICAL SHEAR...A
FEW SEVERE STORMS ARE POSSIBLE. THE NEWLY ISSUED TORNADO WATCH
UNTIL 11 PM INCLUDES MCCULLOCH...SAN SABA...AND MASON COUNTIES.

OUR FOCUS TURNS TO THE WEATHER SCENARIO FOR WEDNESDAY AFTERNOON
INTO WEDNESDAY NIGHT. HAVE AN INCREASING CONCERN FOR THE SEVERE
WEATHER POTENTIAL AND THE THREAT FOR HEAVY RAINFALL AND FLASH FLOOD
POSSIBILITY. A SHORTWAVE TROUGH IS FORECAST TO MOVE EAST ACROSS
THE SOUTHERN ROCKIES ON WEDNESDAY. THIS SHORTWAVE TROUGH WILL
PUSH INTO CENTRAL TEXAS ON THURSDAY. THE LIFT...INSTABILITY AND
VERTICAL SHEAR WILL BE SUPPORTIVE OF SUPERCELLS WEDNESDAY AFTERNOON
AND EVENING IN OUR REGION. THE AMOUNT OF SURFACE-BASED INSTABILITY
WILL BE INFLUENCED BY HOW MUCH BREAKUP OF MORNING LOW CLOUD COVER
OCCURS. AFTERNOON TEMPERATURES AROUND 84 DEGREES WITH DEWPOINTS IN
THE MID TO UPPER 60S YIELD CAPE VALUES IN THE 2000-4000 J/KG RANGE.
SURFACE BOUNDARY TO LIFT BACK NORTH ACROSS MUCH OF WEST CENTRAL
TEXAS ON WEDNESDAY...AND MAY BE POSITIONED ACROSS OUR NORTHERN
COUNTIES IN THE AFTERNOON. SCATTERED THUNDERSTORM EXPECTED
INITIALLY...AND THE STORMS COULD ORGANIZE INTO A MESOSCALE
CONVECTIVE SYSTEM (MCS) ACROSS OUR COUNTIES DURING WEDNESDAY
EVENING. THE MCS SHOULD TRACK EASTWARD WEDNESDAY NIGHT. IN
ADDITION TO THE SEVERE WEATHER THREAT...A HEAVY RAIN/FLASH FLOOD
THREAT COULD MATERIALIZE AS WELL. A VERY MOIST AIRMASS WILL BE
PRESENT WITH 850 MB DEWPOINTS IN THE MID TEENS AND A GOOD THETA-E
RIDGE. WITH THE GROUND NOW SATURATED FROM THE HEAVY RAINFALL OVER
THE PAST COUPLE OF DAYS...THE ADDITIONAL RAINFALL COULD BE
EXCESSIVE.

WE ARE ISSUING A SPECIAL WEATHER STATEMENT TO ADDRESS THE SEVERE
WEATHER AND FLASH FLOOD POTENTIAL FOR WEDNESDAY AFTERNOON INTO
WEDNESDAY NIGHT. A FLASH FLOOD WATCH MAY BE ISSUED BY WEDNESDAY
MORNING.

HAVE A LINGERING POP INTO THURSDAY MORNING ACROSS OUR CENTRAL
AND EASTERN COUNTIES. THE FLOW ALOFT ACROSS OUR REGION WILL
BECOME SOUTHWEST ON FRIDAY...AND SOUTH-SOUTHWEST OVER THE
WEEKEND...AS A DEEP UPPER LOW AND TROUGH CARVE DOWN INTO THE
SOUTHWESTERN STATES. THE GFS TRIES TO BRING A DRYLINE INTO
OUR WESTERN COUNTIES FRIDAY...BUT WITH THE WET GROUND AND
EVAPORATION...THE DRYLINE MAY HAVE A TOUGHER TIME MIXING EASTWARD.
THE MEX GUIDANCE LOOKS TOO WARM WITH HIGH TEMPERATURES FRIDAY...
GIVEN THE EVAPORATION OF CONSIDERABLE LOW-LEVEL MOISTURE WHICH
WILL OCCUR. CAP STRENGTH STRENGTHENS ON SATURDAY AND WE ARE
KEEPING THE FORECAST DRY FRIDAY AND SATURDAY.

SUNDAY/MONDAY INTO TUESDAY...THE UPPER LOW AND TROUGH OVER THE
INTERMOUNTAIN WEST AND SOUTHWEST WILL MOVE LITTLE IN THE BLOCKED
FLOW PATTERN. A FEW EMBEDDED WAVES ARE PROGGED TO ROTATE AROUND THE
EAST SIDE OF THE UPPER LOW AND TROUGH INTO OUR REGION. WITH A MOIST
AND UNSTABLE ENVIRONMENT PROGGED...THESE WILL BRING A CHANCE OF
SHOWERS AND STORMS TO OUR REGION. AT PRESENT HAVE SLIGHT CHANCE POPS
FOR THAT TIME FRAME. WILL MONITOR MODEL TRENDS FOR CONSISTENCY IN
THE PORTRAYAL OF THIS SETUP.

&&

.PRELIMINARY POINT TEMPS/POPS...
ABILENE  63  82  61  83 /  30  50  70  20
SAN ANGELO  64  84  63  85 /  20  50  70  20
JUNCTION  64  84  64  82 /  30  40  70  30

&&

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

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
304 PM CDT TUE MAY 1 2007

TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-
140-154-155-168>170-022015-
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-
304 PM CDT TUE MAY 1 2007

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

.DAY ONE...THIS AFTERNOON AND TONIGHT
SCATTERED THUNDERSTORMS WILL REDEVELOP ACROSS WEST CENTRAL TEXAS
THROUGH THIS EVENING...ESPECIALLY ALONG SEVERAL OLD OUTFLOW
BOUNDARIES. THESE BOUNDARIES WILL PROVIDE A FOCUS FOR ADDITIONAL THUNDERSTORM
DEVELOPMENT. ANY STORM THAT DOES DEVELOP WILL HAVE THE POTENTIAL
OF REACHING SEVERE LEVELS...WITH LARGE HAIL AND DAMAGING WINDS THE
MAIN THREATS. HOWEVER...AN ISOLATED TORNADO IS POSSIBLE AS WELL.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
SEVERE STORMS ARE POSSIBLE ON WEDNESDAY AFTERNOON AND CONTINUING
INTO WEDNESDAY NIGHT. A VERY UNSTABLE AIR MASS WILL MOVE BACK INTO
WEST CENTRAL TEXAS...COMBINING WITH AN APPROACHING UPPER LEVEL
STORM SYSTEM...AND SEVERAL OUTFLOW BOUNDARIES TO ENHANCE THE
THREAT OF SEVERE STORMS. SEVERE STORMS MAY RAPIDLY DEVELOP WEDNESDAY
AFTERNOON...WITH VERY LARGE HAIL AND DAMAGING WINDS THE MAIN
THREATS. HOWEVER...ISOLATED TORNADOES WILL ALSO BE POSSIBLE. IN
ADDITION...VERY HEAVY RAINFALL WILL ALSO BE LIKELY WITH THESE
STORMS...WITH FLASH FLOODING A DISTINCT POSSIBILITY.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE REQUESTED LATER THIS AFTERNOON AND THIS
EVENING...AND AGAIN ON WEDNESDAY AFTERNOON AND WEDNESDAY NIGHT.

07

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
316 PM CDT TUE MAY 01 2007

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

0300 PM     TORNADO          6 E LOHN                31.32N 99.31W
05/01/2007                   MCCULLOCH          TX   AMATEUR RADIO

            LAND SPOUT TORNADO LASTED FOR ABOUT 15 MINUTES BEFORE
            LIFTING.

&&

JBRAZZEL

PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE SAN ANGELO TX
333 PM CDT TUE MAY 01 2007

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

1010 PM     TORNADO          4 SW BALLINGER          31.69N 100.00W
04/30/2007  F0               RUNNELS            TX   NWS STORM SURVEY

            TORNADO STARTED NEAR HWY 67 SOUTHWEST OF BALLINGER AND
            MOVED TO THE EAST SOUTHEAST FOR 1.5 MILES AND LIFTED JUST
            TO THE EAST SOUTHEAST OF BRUCE FIELD AIRPORT. DAMAGE WAS
            LIMITED TO MAINLY TIN ROOFS AND TREES. HOWEVER A TRACTOR
            TRAILER WAS OVERTURNED AND TWO HANGERS AT THE AIRPORT
            WERE DAMAGED AS WELL. THE TORNADO ALSO KILLED SOME LIVE
            STOCK AS WELL. THE TORNADO WAS JUST UNDER ONE HALF MILE
            WIDE.

&&

JBRAZZEL

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN ANGELO TX
345 PM CDT TUE MAY 01 2007

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

0335 PM     TORNADO          4 NNW ROCHELLE          31.28N 99.24W
05/01/2007                   MCCULLOCH          TX   AMATEUR RADIO

            SPOTTERS CONTINUE TO INDICATE A TORNADO BRIEFLY TOUCHING
            AND THEN GOING BACK UP.

&&

JBRAZZEL