Area Forecast Discussion
Issued by NWS Houston/Galveston, TX

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000
FXUS64 KHGX 281749
AFDHGX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1249 PM CDT TUE JUL 28 2015

.AVIATION...
VFR CONDITIONS EXPECTED TO PREVAIL FOR THE SOUTHEAST TEXAS
TERMINALS INTO THE OVERNIGHT HOURS... BEFORE A RETURN OF MVFR
VISIBILITIES AND CEILINGS TO COLLEGE STATION/SUGAR LAND EARLY
WEDNESDAY MORNING. CANNOT RULE OUT BRIEF MVFR CONDITIONS AGAIN AT
ANGLETON AS WELL AND HAVE INCLUDED A TEMPO MENTION... WITH VFR
CONDITIONS EXPECTED TO RETURN AREAWIDE AFTER 15Z THURSDAY. CANNOT
RULE OUT AN ISOLATED SHOWER OR TWO LATER THIS AFTERNOON WITH
ANTICIPATED SEA/BAY BREEZE INTERACTIONS AND KEEPING VCSH MENTION
IN TAFS FOR TERMINALS ALONG INTERSTATE 10. OTHERWISE... SOUTHERLY
WINDS 7 TO 10 KNOTS THIS AFTERNOON WILL BECOME LIGHT OVERNIGHT.

HUFFMAN

&&

.PREV DISCUSSION... /ISSUED 1038 AM CDT TUE JUL 28 2015/

DISCUSSION...
EXPECTING ANOTHER VERY WARM LATE JULY DAY ACROSS ALL OF SOUTHEAST TEXAS.
A MAJORITY OF THE AREA WILL STAY DRY WITH ONLY ISOLATED SHOWERS AND
THUNDERSTORMS EXPECTED TO DEVELOP THIS AFTERNOON. VISIBLE SATELLITE
IMAGES CURRENTLY SHOW VERY LITTLE CLOUD COVER ACROSS THE AREA...AND
THIS WILL HELP TO BOOST TEMPERATURES INTO THE 90S BEFORE NOON AND IN
THE MID TO UPPER 90S LATER THIS AFTERNOON. HEAT INDEX VALUES ARE STILL
EXPECTED TO TOP OUT IN A 101 TO 107 OR 108 RANGE...STILL UNDER ADVISORY
LEVELS. 42

PREV DISCUSSION... /ISSUED 346 AM CDT TUE JUL 28 2015/

DISCUSSION...
STILL CANNOT RULE OUT ISO SHRAS/TSRAS ACROSS SE TX TODAY WITH PWS
LINGERING AROUND 2" AND ABUNDANT HEATING. THIS PATTERN WILL LIKE-
LY BE REPEATED TOMORROW...GIVEN HOW LITTLE THE OVERALL WX PATTERN
CHANGES. HOWEVER CHANGES ARE COMING. AS THE UPPER RIDGE SHIFTS TO
THE WEST AND A WEAK FRONT EDGES INTO THE CWA (COURTESY OF THE DE-
VELOPING NW FLOW ALOFT) WE SHOULD SEE AN UPTICK OF POPS WITH THIS
BOUNDARY ACTING AS A FOCUS. BUT OF NOTE WITH THESE LAST FEW MODEL
RUNS...THE RIDGING TO THE WEST PROGGED TO BE A BIT STRONGER/FURT-
HER EAST THAN RUNS OVER THE WEEKEND. AS SUCH GUIDANCE NUMBERS FOR
POPS HAVE BEEN DROPPING A BIT AS THE PREVIOUSLY EXPECTED WEAKNESS
REGION OVER US SHIFT EAST. NOT ENTIRELY CONFIDENT WITH THIS TREND
SO WILL BE KEEPING WITH PREVIOUS POPS FOR THUR/FRI/SAT. TEMPS FOR
THE START OF NEXT WEEK MAY BE ON THE HOT SIDE IF LONG-RANGE GUID-
ANCE VERIFIES. 41

MARINE...
LIGHT TO OCCASIONALLY MODERATE ONSHORE WINDS ARE EXPECTED TO
CONTINUE THROUGH THE REMAINDER OF THE WEEK... INCREASING SLIGHTLY
DURING THE OVERNIGHT HOURS. A WEAK COLD FRONT IS EXPECTED TO
APPROACH SOUTHEAST TEXAS ON THURSDAY NIGHT... WITH INCREASING
CHANCES FOR SHOWERS AND THUNDERSTORMS OVER THE COASTAL WATERS AS
THE FRONT NEARS THE COAST. SHOWERS AND THUNDERSTORMS WILL BE
POSSIBLE OVER THE COASTAL WATERS THROUGH THE END OF THE WEEKEND IN
THE VICINITY OF THIS BOUNDARY BEFORE THE BUILDING INFLUENCE OF THE
UPPER RIDGE LIMITS DEVELOPMENT. 43

&&

.PRELIMINARY POINT TEMPS/POPS...
COLLEGE STATION (CLL)      78  98  78  99  77 /  10  10  10  20  20
HOUSTON (IAH)              78  99  78  99  77 /  10  10  10  30  20
GALVESTON (GLS)            82  92  82  92  81 /  10  10  10  20  20

&&

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

$$

AVIATION/MARINE...14



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