River Flood Warning 28, NWS Houston/Galveston, TX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
938 PM CDT FRI APR 17 2015

.UPDATE...
JUST A QUICK UPDATE TO CLEAN UP IN WAKE OF BOWING MCS FINALLY
CLEARING THE AREA. SITUATION REMAINS ACTIVE WITH MOIST SW FLOW AND
MAIN UPPER LOW REMAINING OFF TO THE WEST. THIS WILL KEEP SCATTERED
TSTMS IN THE FORECAST OVERNIGHT AND THROUGH TOMORROW AT LEAST.
FLASH FLOODING NOW GREATEST CONCERN WITH MANY AREAS INUNDATEDLATE
THIS EVENING...AND BAYOUS AND CREEKS RISING. ANY FURTHER RAINFALL
WILL CERTAINLY AGGRAVATE THE SITUATION. SURFACE OUTFLOW/EFFECTIVE
FRONT HAS PUSHED OFF THE COAST...HOWEVER ELEVATED STORMS WITH RAIN
AND HAIL REMAIN A CONCERN. SVR TSTM WATCH THEREFORE WILL REMAIN IN
EFFECT ALONG COAST AND ONE ROW OF COUNTIES INLAND THROUGH 07Z.
TORNADO WATCH FOR JACKSON AND MATAGORDA ALSO REMAINS POSTED
THROUGH 07Z AS THIS AREA WILL REMAIN CLOSER TO THE SURFACE BASED
INSTABILITY LINGERING NEAR THE CENTRAL TX COAST. FLASH FLOOD WATCH
WILL ALSO REMAIN IN PLACE AREA WIDE THROUGH AT LEAST TOMORROW.

EVANS

&&

.PREV DISCUSSION... /ISSUED 634 PM CDT FRI APR 17 2015/

AVIATION...
SHRA/TSRA DEVELOPING ACROSS SE TX EARLY THIS EVENING. EXPECTING ALL
TAF SITE TO SEE TSRA WITHIN THE NEXT FIVE HOURS (23Z-04Z) AS THE STORM
COMPLEX MOVES EASTWARD THROUGH THE AREA. MVFR CEILINGS ARE LIKELY WITH
THE ACTIVITY...AND IFR CEILINGS/VISIBILITIES ARE POSSIBLE WITH THE
STRONGER TSRA. IT IS POSSIBLE THIS COULD EXTEND PAST 04Z...ESPECIALLY
FROM IAH SOUTHWARD TO GLS. SOME STABILIZATION COULD OCCUR DURING THE
OVERNIGHT HOURS AND TOWARD MORNING...AND WITH DAYTIME HEATING TOMORROW
WOULD EXPECT TO SEE MORE PERIODS OF SHRA/TSRA.  42

&&

.PRELIMINARY POINT TEMPS/POPS...
COLLEGE STATION (CLL)      66  78  63  83  59 /  80  60  20  20  10
HOUSTON (IAH)              68  79  65  84  63 /  90  60  20  20  20
GALVESTON (GLS)            71  78  70  78  68 /  80  60  30  20  20

&&

.HGX WATCHES/WARNINGS/ADVISORIES...
TX...FLASH FLOOD WATCH UNTIL 8 AM CDT SATURDAY FOR THE FOLLOWING
     ZONES: AUSTIN...BRAZORIA...BRAZOS...BURLESON...CHAMBERS...
     COLORADO...FORT BEND...GALVESTON...GRIMES...HARRIS...
     HOUSTON...JACKSON...LIBERTY...MADISON...MATAGORDA...
     MONTGOMERY...POLK...SAN JACINTO...TRINITY...WALKER...
     WALLER...WASHINGTON...WHARTON.

GM...NONE.

&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
948 PM CDT FRI APR 17 2015

GMZ330-335-350-355-370-375-TXZ163-164-176>179-195>200-210>214-226-
227-235>238-190300-
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-
WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL 20 NM TO 60 NM-
WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL OUT 20 NM-
WATERS FROM HIGH ISLAND TO FREEPORT 20 TO 60 NM-
WATERS FROM HIGH ISLAND TO FREEPORT OUT 20 NM-WHARTON-
948 PM CDT FRI APR 17 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS.

.DAY ONE...TONIGHT

SEVERE THUNDERSTORM WATCH IN EFFECT THROUGH 2 AM CDT TONIGHT FOR
COASTAL COUNTIES AND ONE ROW INLAND.

A FLOOD WATCH IS IN EFFECT AREA WIDE THROUGH SATURDAY MORNING.

ONGOING FLOODING THIS EVENING WILL BE AGGRAVATED BY SCATTERED
THUNDERSTORMS EXPECTED TO CONTINUE OVERNIGHT. ONE TO TWO INCH
RAINS COULD OCCUR WITH HEAVIER CORES...ALONG WITH HAIL UP TO AN
INCH IN DIAMETER.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

STRONG TO SEVERE THUNDERSTORMS WITH HEAVY RAIN WILL BE POSSIBLE
AGAIN SATURDAY AS YET ANOTHER DISTURBANCE MOVES THROUGH THE REGION.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS NEED TO BE READY TO REPORT ANY SEVERE WEATHER DURING THE
OVERNIGHT HOURS.

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PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
942 PM CDT FRI APR 17 2015

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

0925 PM     FLOOD            LA PORTE                29.67N  95.04W
04/17/2015                   HARRIS             TX   PUBLIC

            APPROXIMATELY 40 FLOODED HOMES IN LA PORTE.

&&

EVENT NUMBER HGX1500076

DCH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
944 PM CDT FRI APR 17 2015

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

0810 PM     TSTM WND DMG     JAMAICA BEACH           29.19N  94.98W
04/17/2015                   GALVESTON          TX   LAW ENFORCEMENT

            ESTIMATED 80 MPH TSTM WIND GUSTS IN JAMAICA
            BEACH...ROOF BLOWN OFF OF A HOME.

&&

EVENT NUMBER HGX1500077

DCH