971
FXUS64 KHGX 212311
AFDHGX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
611 PM CDT MON JUL 21 2025
..NEW AVIATION
KEY MESSAGES
ISSUED AT 1200 AM CDT MON JUL 20 2025
- MOSTLY DRY/HOT PATTERN TO CONTINUE THROUGH THURSDAY
- ISOLATED SHOWERS/THUNDERSTORMS MAY FORM IN ASSOCIATION WITH SEA
BREEZE
- THE HEAT RISK WILL INCREASE TOWARDS THE MIDDLE OF THE WEEK,
WITH MOST INLAND AREAS FORECAST TO BE IN THE UPPER 90S ON
THURSDAY. HEAT WILL BE HAZARDOUS ALL WEEK EVEN IF WE TECHNICALLY
REMAIN BELOW ADVISORY CRITERIA.
- A LATE WEEK SURGE OF TROPICAL MOISTURE INCREASES RAIN CHANCES
BEYOND THURSDAY.
DISCUSSION
ISSUED AT 1221 PM CDT MON JUL 21 2025
DAYTIME TEMPERATURES WILL BE ON THE RISE THROUGH THURSDAY AS A
MID/UPPER LEVEL RIDGE MEANDERS WEST FROM THE GULF THROUGH THE
WEEK. THE HIGH PRESSURE, CURRENTLY CENTERED OVER THE GULF, WILL
STRENGTHEN AS IT BECOMES CENTERED OVER THE SOUTHEAST CONUS AND
ENCOMPASSES SE TEXAS. HIGHS TUESDAY THROUGH THURSDAY WILL BE IN
THE MID TO UPPER 90S (WITH THE METRO FLIRTING WITH THE 100F MARK
ON WEDNESDAY AND THURSDAY). THE COMBINATION OF THE HEAT AND
HUMIDITY RESULTING FROM THE POSITION OF THE HIGH PRESSURE WILL
LEAD TO HEAT INDICES IN THE TRIPLE DIGITS DURING THIS TIME;
HOWEVER, DAYTIME MIXING SHOULD PREVENT REACHING HEAT ADVISORY
CRITERIA.
NONETHELESS, IT IS IMPORTANT TO KEEP IN MIND HEAT SAFETY AND
REMEMBER TO DRINK PLENTY OF FLUIDS, TAKE BREAKS IN THE SHADE/AC,
LOOK BEFORE YOU LOCK, AND REMEMBER THAT IF THE GROUND IS TOO HOT
FOR YOUR HAND IT IS TOO HOT FOR YOUR PETS' PAWS!
WBGT TEMPERATURES ARE ELEVATED DURING THE EARLY AFTERNOON HOURS
TUESDAY THROUGH THURSDAY (AS A REMINDER WBGT TAKES INTO ACCOUNT
THE COMBINATION OF HEAT, HUMIDITY, SUN ANGLE, CLOUD COVER, AND
WIND). FOR THOSE OF YOU PLANNING TO DO STRENUOUS OUTSIDE ACTIVITY,
THE MOST HAZARDOUS HEAT IS EXPECTED FROM AROUND NOON TO ABOUT 4
PM.
LATER IN THE WEEK, AN INFLUX OF TROPICAL MOISTURE IS EXPECTED AS A
LOW/MID LEVEL TROUGH MOVES WESTWARD THROUGH THE GULF (SIMILAR TO
AL93 LAST WEEK). RAIN CHANCES WILL INCREASE IN RESPONSE ON FRIDAY
AND SATURDAY IN RESPONSE TO THIS.
AVIATION
(00Z TAF ISSUANCE)
ISSUED AT 607 PM CDT MON JUL 21 2025
MOSTLY VFR CONDITIONS ARE EXPECTED THROUGH THE TAF PERIOD.
HOWEVER, AREAS OF MVFR ARE POSSIBLE DURING THE MORNING HOURS ON
TUESDAY, ESPECIALLY IN THE BRAZOS VALLEY (CLL). SE WINDS SHOULD
DECREASE THIS EVENING. A PREVAILING S TO SSW WIND IS EXPECTED TO
BEGIN LATER TUESDAY MORNING, BEFORE BACKING SE AND INCREASING BY
THE AFTERNOON.
MARINE
ISSUED AT 1221 PM CDT MON JUL 21 2025
MOSTLY DRY AND HOT CONDITIONS WITH LIGHT TO OCCASIONALLY MODERATE
ONSHORE WINDS (5 TO 15 KNOTS) AND 2-3 FOOT SEAS EXPECTED THROUGH
THE MIDDLE OF THE WEEK. FRIDAY, A DISTURBANCE FROM THE EAST IS
EXPECTED TO INCREASE THE CHANCE OF RAIN AND THUNDERSTORMS THROUGH
SATURDAY. THERE IS SOME POTENTIAL FOR SEAS AND WINDS TO INCREASE
SOMEWHAT AS WELL. BUT CONFIDENCE IN THE WIND FORECAST IS LOWER
THAN NORMAL BEYOND THURSDAY.
PRELIMINARY POINT TEMPS/POPS
COLLEGE STATION (CLL) 75 95 74 95 / 0 0 0 0
HOUSTON (IAH) 78 95 76 96 / 0 10 0 0
GALVESTON (GLS) 83 91 82 91 / 0 0 0 0
HGX WATCHES/WARNINGS/ADVISORIES
TX...NONE.
GM...NONE.
DISCUSSION...ADAMS
AVIATION...SELF
MARINE...ADAMS
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