HGX Afternoon AFD:
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1249 PM CST WED DEC 4 2013
.AVIATION...
VISBY HAS IMPROVED FOR ALL BUT THE COAST WHERE SOME 1-2 MILE VISBY
STILL LINGERING. ADVECTION FOG WILL CONTINUE TO HAMPER THE COAST
THIS AFTERNOON AND EVENING AND SHOULD QUICKLY WORSEN THIS EVENING
SPREADING INLAND. WINDS BECOMING MORE SOUTH TO SOUTHEAST WHICH FOR
SOURCE REGION MAY HAVE SLIGHTLY LOWER DEWPOINTS BE TRAJECTORIES
OVER THE COLD SHELF WATERS WILL BE LONGER. SO EXPECT DENSE FOG
TONIGHT FOR HOU SITES SOUTHWARD POSSIBLY REACHING IAH BEFORE
SUNRISE WITH VERY SLOW IMPROVEMENT THURSDAY.
NEXT ISSUE IS THE BIG COLD FRONT THAT HAS BEEN SPREADING SOUTH AND
SHOULD REACH THE CLL AREA 14-15Z THURSDAY AND IAH 17-19Z. THIS
SHOULD BE PRECEDED BY IFR/LIFR WITH LIGHT DRIZZLE. FROPA WITH
NORTH WINDS 10-15 AND GUSTY TURNING MUCH COLDER.
STILL CONCERNED ABOUT THE POSSIBILITY OF FREEZING PRECIPITATION
FOR CLL/UTS AREAS THIS WEEKEND (FRI EVENING AND SATURDAY
ESPECIALLY). MODELS HAVE BEEN TRENDING FURTHER SOUTH WITH THE
CHANGEOVER LINE SO CAN`T RULE OUT SOME VERY SMALL THREAT FOR IAH
SATURDAY WITH SLEET.
ON A TECHNICAL NOTE...LVJ ASOS WILL BE DOWN THIS AFTERNOON FOR A
SOFTWARE UPDATE.
45
http://forecast.weather.gov/product.php ... glossary=1