261
FXUS64 KHGX 171804
AFDHGX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1204 PM CST TUE DEC 17 2024
..NEW AVIATION
SHORT TERM
(TODAY THROUGH WEDNESDAY NIGHT)
ISSUED AT 339 AM CST TUE DEC 17 2024
WIDESPREAD DENSE FOG ONGOING THIS MORNING WITH LIGHT WINDS AND DEW
POINT DEPRESSIONS OF 1 DEGREE OR LESS. NUMEROUS LOCATIONS ACROSS SE
TEXAS REPORTING VISIBILITIES OF LESS THAN 1 MILE. USE EXTRA CAUTION
WHEN DRIVING THIS MORNING BY LEAVING PLENTY OF SPACE BETWEEN
VEHICLES AND USING LOW-BEAM HEADLIGHTS. FOG SHOULD BE OUT OF THE
MAJORITY OF THE AREA AROUND MID-MORNING, BUT MAY LINGER ALONG THE
COAST AND ISLANDS THROUGH EARLY AFTERNOON.
CONTINUED WAA WILL RESULT IN WARMER THAN AVERAGE TEMPERATURES TODAY.
HIGHS WILL BE IN THE MID 70S TO LOW 80S. LOWS FOR TONIGHT WILL
FEATURE ANOTHER ROUND OF TEMPERATURES IN THE 60S AREA WIDE.
ADDITIONALLY, ANOTHER ROUND OF FOG IS ON TAP TONIGHT THROUGH
WEDNESDAY MORNING WITH AREAS OF DENSE FOG EXPECTED.
WEDNESDAY'S FROPA IS SET TO ARRIVE TO THE BRAZOS VALLEY AROUND THE
MID TO LATE MORNING HOURS AND TO THE HOUSTON METRO AREA DURING THE
AFTERNOON HOURS. IT IS EXPECTED TO MOVE OFFSHORE BY SUNSET.
UNFORTUNATELY, COMPRESSIONAL HEATING AHEAD OF THE FRONT WILL ALLOW
FOR TEMPERATURES TO REACH INTO THE 70S FOR MUCH OF THE AREA. WITH
THE FRONT PASSING EARLIER IN THE DAY, BRAZOS VALLEY AND PINEY WOODS
WILL OBSERVE SLIGHTLY COOLER TEMPERATURES AS HIGHS DROP INTO THE 60S.
IF THE FROPA MOVES THROUGH FASTER THAN ANTICIPATED, TEMPERATURES FOR
TOMORROW COULD BE A LITTLE COOLER THAN WHAT IS CURRENTLY FORECAST.
AHEAD OF AND ALONG THE FRONT, WIDELY SCATTERED SHOWERS WITH EMBEDDED
THUNDERSTORMS. STORM CHANCES START OUT IN THE NW AND MOVE SE THROUGH
THE DAY, COMING TO AN END IN THE EVENING HOURS. LOWS FOR WEDNESDAY
NIGHT WILL BE ABOUT 15-20°F THAN LOWS FOR THE LAST FEW DAYS.
TEMPERATURES WILL DROP INTO THE 40S TO NEAR 50 ALONG THE COAST. DRY
AIR MOVING IN BEHIND THE FRONT, COUPLED WITH NORTHERLY WINDS WILL
HELP TO INHIBIT FOG DEVELOPMENT.
ADAMS
LONG TERM
(THURSDAY THROUGH MONDAY)
ISSUED AT 339 AM CST TUE DEC 17 2024
IN THE WAKE OF WEDNESDAY'S COLD FRONT, COOLER TEMPERATURES CAN BE
EXPECTED THROUGH THE END OF THE WEEK AND OVER THE WEEKEND. HIGHS
ON THURSDAY AND FRIDAY WILL BE IN THE 60S, AND A REINFORCING COLD
FRONT WILL CAUSE SATURDAY'S HIGHS TO DIP INTO A 50S/60S RANGE.
LOWS FRIDAY THROUGH SUNDAY WILL BE IN THE 30S AND 40S WITH FREEZING
TEMPERATURES POSSIBLE SATURDAY MORNING ACROSS PORTIONS OF THE BRAZOS
VALLEY AND PINEY WOODS AREAS. THE START OF A GRADUAL WARMING TREND
BEGINS ON SUNDAY AND MONDAY AS A MORE EASTERLY AND SOUTHEASTERLY FLOW
SETS UP IN RESPONSE TO SURFACE HIGH PRESSURE EDGING OFF TO THE EAST.
AFTER SUNDAY MORNING'S LOWS AGAIN IN THE 30S/40S (30S MOSTLY CONFINED
TO THE PINEY WOODS AREA), SUNDAY'S HIGHS WILL EDGE BACK INTO THE 60S.
LOOK FOR THIS TREND TO CONTINUE INTO SUNDAY NIGHT (LOWS IN THE 40S/50S)
AND MONDAY (HIGHS IN THE 60S/70S). WITH THIS PACKAGE, THE ONLY RAIN
IN THE FORECAST COMES ON MONDAY WELL OUT IN THE GULF. SOME RAIN CHANCES
FINALLY MAKE THEIR WAY BACK INLAND ON TUESDAY. 42
AVIATION
(18Z TAF ISSUANCE)
ISSUED AT 1144 AM CST TUE DEC 17 2024
CIGS SHOULD SCATTER AND LIFT THIS AFTERNOON, WITH MUCH OF THE AREA
RETURNING TO VFR CONDITIONS LATER TODAY. THIS EVENING, FOG AND LOW
CIGS WILL FILL IN ONCE AGAIN, STARTING ALONG COASTAL AREAS AND
SPREADING INLAND AS THE NIGHT PROGRESSES. LIFR AND VLIFR
CONDITIONS ARE LIKELY TO DEVELOP IN MOST AREAS BY MIDNIGHT. AREAS
FURTHER INLAND (KCLL AND KUTS) MIGHT SEE THE LOWEST FLIGHT LEVELS
OCCUR LATER DURING THE EARLY MORNING HOURS OF WEDNESDAY. A COLD
FRONT WILL APPROACH KCLL AROUND SUNRISE, PUSHING A LINE OF SHOWERS
THROUGH SE TEXAS DURING THE DAY. THESE SHOWERS MAY BRING SOME
VISIBILITY REDUCTIONS. OTHERWISE, FOG/CIGS SHOULD LARGELY
CLEAR/LIFT THROUGH THE EARLY AFTERNOON, RETURNING TO MVFR/VFR
LEVELS.
03
MARINE
ISSUED AT 339 AM CST TUE DEC 17 2024
LIGHT SOUTHEAST WINDS WILL PREVAIL INTO MID WEEK. INTERMITTENT PERIODS
OF DENSE FOG ARE LIKELY, ESPECIALLY IN THE BAYS AND NEARSHORE WATERS,
UNTIL THE NEXT COLD FRONT BRINGS SOME DRIER AND COOLER AIR INTO THE
REGION WEDNESDAY AFTERNOON OR EVENING. MODERATE NORTHERLY TO NORTHEASTERLY
WINDS PREVAIL BEHIND THE FRONT WITH CAUTION FLAGS EXPECTED, THEN GRADUALLY
DIMINISH BY THURSDAY. LOOK FOR A REINFORCING FRONT TO PUSH THROUGH AROUND
THE END OF THE WEEK OR START OF THE WEEKEND. 42
PRELIMINARY POINT TEMPS/POPS
COLLEGE STATION (CLL) 78 65 67 40 / 10 0 70 0
HOUSTON (IAH) 78 65 72 47 / 20 10 60 0
GALVESTON (GLS) 70 63 69 52 / 20 0 30 0
HGX WATCHES/WARNINGS/ADVISORIES
TX...NONE.
GM...NONE.
SHORT TERM...ADAMS
LONG TERM....42
AVIATION...03
MARINE...42
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