FXUS64 KHGX 242343
AFDHGX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
543 PM CST THU DEC 24 2009
.DISCUSSION...
00Z TAF DISCUSSION.
&&
.AVIATION...
MAIN AVIATION CONCERN WILL BE VERY STRONG W/NW WINDS WHICH WILL
GRADUALLY DROP OFF AS HIGH PRESSURE BEGINS TO BUILD INTO SE TX BY
FRI MORNING. EXPECT BKN/SCT VFR CIGS TO CLEAR OUT AFTER MIDNIGHT.
KEPT A TEMPO FOR KCLL/KUTS FOR THE NEXT HOUR OR TWO FOR LIGHT
RAIN AS SOUTHERN EDGE OF WRAP AROUND SNOW/RAIN BAND OVER C TX MAY
CLIP THESE TERMINALS. OTHERWISE MVFR/VFR CIGS ARE EXPECTED. CLEAR
SKIES ARE EXPECTED FOR ALL DAY TOMORROW WITH WINDS DROPPING OFF
TO POSSIBLY BELOW 10 KTS DURING THE AFTERNOON AS THE SFC RIDGE
MOVES OVER SE TX.
39
&&
.PREV DISCUSSION... /ISSUED 447 PM CST THU DEC 24 2009/
DISCUSSION...
JUST DID A QUICK UPDATE TO RAISE SNOW CHANCES FOR THE N COUNTIES
JUST SNOW FLURRIES BUT DO NOT EXPECT ANY ACCUMULATION...A DUSTING
AT BEST GIVEN THE WIND AND WARM WET GROUND. NO WHITE CHRISTMAS FOR
SETX.
PREVIOUS DISCUSSION POINTED OUT THE WIND THREAT CONTINUING TIL 9
PM AND THIS LOOKS ON TARGET. AND AGREE THAT THE COASTAL COUNTIES
MAY NEED EXTENDING WILL REVISIT THIS ISSUE AFTER THE SOUNDINGS
COME IN AND POSSIBLY THE EARLY GUIDANCE.
45
PREV DISCUSSION... /ISSUED 316 PM CST THU DEC 24 2009/
DISCUSSION...
COOL BLUSTERY DAY WITH WRAP AROUND CLOUDINESS IN THE WORKS. THERE
IS SOME -SN GOING ON NW OF THE CWA. CURRENT TRAJECTORY MAY CLIP
EXTREME N & NE COUNTIES THIS EVENING AS THE LOW MOVES NEWD. THREW
IN SOME 20% POPS TO COVER THIS. NO ACCUMULATION EXPECTED AND NOT
EXPECTING ANY ROAD ISSUES. JUST EXTENDED THE WIND ADVSY UNTIL 9
PM. EXPECT SPEEDS TO GRADUALLY DIMINISH BELOW CRITERIA BY THEN
INLAND...BUT IT MAY NEED TO BE EXTENDED AT THE IMMEDIATE COAST.
CLOUD COVER SHOULD GRADUALLY LIFT OUT OF SE TX OVERNIGHT AS THE
STORM SYSTEM TREKS NE. FREEZING TEMPS A GOOD BET ACROSS A GOOD
PART OF SE TX WITH WIND CHILLS DIPPING INTO THE TEENS AND
TWENTIES.
HIGH PRES AND COOL TEMPS IN THE WORKS THRU FRI. COASTAL TROF/LOW
DEVELOPS ACROSS SRN TX COAST AND HEADS EWD SAT & SAT NIGHT BRINGING
A CHANCE OF RAIN TO SRN PARTS OF THE AREA. ANOTHER REINFORCING
HIGH SLIDES IN BEHIND THE COASTAL LOW ON SUN BRINGING ANOTHER
COUPLE DAYS OF DRY COOL WX. A BETTER SHOT OF RAIN AREAWIDE IS
EXPECTED ON TUE AS A SECOND COASTAL LOW DEVELOPS AS THE NEXT H5
TROF APPROACHES FROM THE WEST. THIS SYSTEM SHOULD MOVE CLOSER TO
THE UPPER COAST AND HAVE BETTER MOISTURE AND JET STRUCTURE TO WORK
WITH. NUDGED POPS UP INTO HIGH CHC CATEGORY ON TUE AND UNDERCUT
GUIDANCE TEMPS AS THICK CLOUDS AND PRECIP SHOULD LIMIT HEATING.
SHOULD DRY OUT AGAIN AS THIS SYSTEM PUSHES OFF TO THE EAST ON WED.
HAPPY HOLIDAYS FROM HGX... 47
MARINE...
WILL CONTINUE THE GALE WARNING FOR THE GULF WATERS THROUGH 06Z. WILL
REASSESS LATER THIS EVENING TO SEE HOW THE TRENDS ARE SHAPING UP.
OTHERWISE...THE WINDS WILL SLOWLY DIMINISH TONIGHT AND THEN MORE
QUICKLY ON FRIDAY. THE MODELS ARE A BIT DIVERGENT ON HOW CLOSE A
COASTAL LOW WILL GET TO THE COAST OVER THE UPCOMING WEEKEND. DECIDED
TO GO WITH THE LOW MORE ALONG THE COAST. WINDS MAY AGAIN REACH SMALL
CRAFT ADVISORY LEVELS SUNDAY. 40
&&
.PRELIMINARY POINT TEMPS/POPS...
COLLEGE STATION (CLL) 29 51 29 53 30 / 30 0 10 10 10
HOUSTON (IAH) 32 51 32 54 34 / 10 0 10 30 30
GALVESTON (GLS) 37 51 40 55 43 / 10 0 10 40 40
&&
.HGX WATCHES/WARNINGS/ADVISORIES...
TX...WIND ADVISORY UNTIL 9 PM CST THIS EVENING 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...SMALL CRAFT ADVISORY UNTIL 9 AM CST FRIDAY FOR THE FOLLOWING
ZONES: GALVESTON BAY...MATAGORDA BAY.
SMALL CRAFT ADVISORY FROM MIDNIGHT TONIGHT TO 9 AM CST FRIDAY
FOR THE FOLLOWING ZONES: 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.
GALE WARNING UNTIL MIDNIGHT CST TONIGHT FOR THE FOLLOWING ZONES:
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.
&&
$$
DISCUSSION...45
AVIATION/MARINE...39
