Severe Thunderstorm Warning 86, NWS Houston/Galveston, TX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
348 PM CDT THU JUN 6 2013

.DISCUSSION...
QUITE A LOT OF BOUNDARIES TO CONTEND WITH THE AFTN/EVENING AS THE
FRONT SLOWLY MAKES ITS WAY INTO THE REGION AND OUTFLOWS/SEABREEZE
INTERACT IN THIS MOIST/UNSTABLE AIRMASS ALREADY OVER SE TX. NOT A
LOT OF CONFIDENCE WITH HOW FAR SOUTH THIS ACTIVITY WILL EXTEND AS
WE MOVE INTO THE PEAK HEATING HOURS BUT HARD TO ARGUE AGAINST THE
CURRENT WATCH CONFIG BASED ON ONGOING TRENDS.

MAIN CHANGE WITH THIS FCST PACKAGE WILL BE WITH THE NEXT FEW DAYS
IN THE WAKE OF THIS ACTIVITY. WITH LIGHT TO MODERATE N/NWLY WINDS
SETTING UP BEHIND THIS FRONT...SLIGHTLY DRIER (BUT NOT MUCH COOL-
ER) AIR SET TO MOVE INTO THE AREA TOMORROW. THIS SHOULD PUT A KI-
BOSH ON POPS ON FRI. THE RETURN OF ONSHORE WINDS COULD HERALD THE
POSSIBILITY OF A SLIGHTLY MORE ACTIVE SEABREEZE DURING THE AFTER-
NOON/EVENING HOURS OVER THE WEEKEND. EXTENDED FCSTS INDICATES THE
INCREASINGLY PROMINENCE OF THE UPPER LEVEL RIDGE NEXT WEEK. 41

&&

.MARINE...
ONSHORE WINDS ARE EXPECTED TO PERSIST INTO TONIGHT. THE MODELS
ARE PUSHING A WEAK FRONTAL BOUNDARY OFF THE COAST FRIDAY MORNING.
AFTER A BRIEF PERIOD OF VARIABLE TO WEAK OFFSHORE FLOW...DO
EXPECT SLIGHTLY STRONGER ONSHORE WINDS TO SET UP OVER THE WEEKEND.

40

&&

.PRELIMINARY POINT TEMPS/POPS...
COLLEGE STATION (CLL)      69  89  67  91  71 /  40  10  10  10  10
HOUSTON (IAH)              71  91  71  91  72 /  50  20  10  20  10
GALVESTON (GLS)            76  88  76  87  77 /  30  20  10  10  10

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...NONE.
GM...NONE.
&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
336 AM CDT THU JUN 6 2013

GMZ330-335-TXZ163-164-176>179-195>200-210>214-226-227-235>238-
070845-
AUSTIN-BRAZORIA-BRAZOS-BURLESON-CHAMBERS-COLORADO-FORT BEND-
GALVESTON-GALVESTON BAY-GRIMES-HARRIS-HOUSTON-JACKSON-LIBERTY-
MADISON-MATAGORDA-MATAGORDA BAY-MONTGOMERY-POLK-SAN JACINTO-
TRINITY-WALKER-WALLER-WASHINGTON-WHARTON-
336 AM CDT THU JUN 6 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS.

.DAY ONE...TODAY AND TONIGHT
A COLD FRONT WILL MOVE DOWN INTO THE REGION TODAY BRINGING
SCATTERED SHOWERS AND THUNDERSTORMS. ISOLATED STRONG TO SEVERE
THUNDERSTORMS ARE POSSIBLE ALONG THE FRONTAL BOUNDARY THIS
MORNING AND EARLY AFTERNOON FOR AREAS NORTH OF A BRENHAM TO
COLDSPRING LINE. DURING THE AFTERNOON AND EVENING THE FRONT WILL
CONTINUE TO DRIFT SOUTH AND BECOME A FOCUS FOR FURTHER DEVELOPMENT
OF STORMS SOME WHICH MAY BE SEVERE. IN ADDITION THE THREAT OF
LOCALLY HEAVY RAINFALL WILL DEVELOP FROM AROUND COLUMBUS TO CONROE
TO LIBERTY. THE SEABREEZE SHOULD MOVE INLAND FROM THE COASTAL
COUNTIES LATE IN THE AFTERNOON AND EARLY EVENING COLLIDING WITH
THE FRONTAL BOUNDARY AND COULD FOCUS RAINS ALONG THE I-10 CORRIDOR
AND AREAS TO THE SOUTH.

THE PRIMARY THREAT OF SEVERE WEATHER WILL LIKELY BE HAIL THOUGH
GUSTY DAMAGING WINDS WILL BE POSSIBLE. WIDESPREAD RAINFALL OF ONE
QUARTER TO ONE HALF INCH CAN BE EXPECTED WITH ISOLATED HEAVIER
AMOUNTS. DURING THE AFTERNOON AND EARLY EVENING HOURS HEAVY RAIN
ACCUMULATIONS OF 2 TO 4 INCHES WILL BE POSSIBLE IN THE AREA
MENTIONED ABOVE.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED BETWEEN 10 AM AND 8 PM.

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
318 PM CDT THU JUN 06 2013

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

0309 PM     TSTM WND DMG     2 W GRAPELAND           31.49N  95.52W
06/06/2013                   HOUSTON            TX   EMERGENCY MNGR

            PEA SIZE HAIL AND TREES DOWN NEAR GRAPELAND.

&&

EVENT NUMBER HGX1300126

PK

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
322 PM CDT THU JUN 06 2013

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

0312 PM     HAIL             1 NNE GRAPELAND         31.51N  95.48W
06/06/2013  E1.00 INCH       HOUSTON            TX   EMERGENCY MNGR

            QUARTER SIZE HAIL REPORTED IN THE NORTHERN CITY LIMITS
            OF GRAPELAND.

&&

EVENT NUMBER HGX1300127

PK

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
338 PM CDT THU JUN 6 2013

TXZ196-198-062100-
BRAZOS TX-GRIMES TX-
338 PM CDT THU JUN 6 2013

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL BRAZOS AND NORTHWESTERN
GRIMES COUNTIES UNTIL 400 PM CDT...

AT 334 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR BRYAN...MOVING EAST AT 25 MPH.

HAIL UP TO THE SIZE OF PEAS AND WIND GUSTS UP TO 40 MPH WILL BE
POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
COLLEGE STATION...BRYAN AND WIXON VALLEY.

LAT...LON 3073 9650 3074 9647 3079 9642 3083 9641
      3084 9640 3078 9613 3055 9626 3070 9651
TIME...MOT...LOC 2034Z 290DEG 23KT 3075 9642

13

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
355 PM CDT THU JUN 06 2013

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

0350 PM     TSTM WND DMG     CROCKETT                31.32N  95.46W
06/06/2013                   HOUSTON            TX   LAW ENFORCEMENT

            POWERLINES DOWN IN CROCKETT.

&&

EVENT NUMBER HGX1300128

PK

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
357 PM CDT THU JUN 06 2013

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

0350 PM     TSTM WND DMG     CROCKETT                31.32N  95.46W
06/06/2013                   HOUSTON            TX   LAW ENFORCEMENT

            TREES DOWN THROUGHOUT HOUSTON COUNTY.

&&

EVENT NUMBER HGX1300129

PK

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
435 PM CDT THU JUN 06 2013

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

0431 PM     TSTM WND DMG     7 W CORRIGAN            31.01N  94.95W
06/06/2013                   POLK               TX   LAW ENFORCEMENT

            TREES DOWN ALONG HIGHWAY 287 NEAR CARMONA.

&&

EVENT NUMBER HGX1300130

PK