Printable ProductProvided by - NWS Southern Region HQ - Print 000 FXUS64 KHGX 142005 AFDHGX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 305 PM CDT SUN SEP 14 2008 .DISCUSSION... MID LEVEL TROUGH EXTENDING EAST-WEST ACROSS THE CENTRAL SECTIONS OF OUR CWFA EARLY THIS AFTERNOON. DEWPOINTS STILL ON THE HIGH SIDE DESPITE RELATIVELY WEAK NORTHERLY FLOW ACROSS SOUTHERN HALF OF REGION. COLD FRONT PROBABLY CLOSE TO WHERE 925 MB CONFLUENT FLOW IS LOCATED. DEWPOINTS SOUTH OF A LIVINGSTON TO SEALY LINE STILL IN THE 70S. WIDESPREAD CONVECTION OVER UPPER TEXAS COASTAL WATERS SHOULD PERSIST THROUGH THIS EVENING. WE CONTINUED WITH FFA FOR COASTAL ZONES THROUGH 7 PM. THE UPPER LEVEL TROUGH WILL GRADUALLY PUSH SE TONIGHT AND INTO TOMORROW. SURFACE HIGH PRESSURE RIDGING WILL USHER DRIER AIR OVER CWFA. OFFSHORE FLOW WILL THEN PREVAIL FOR THE MUCH OF THE COMING WEEK. UPPER LEVEL PATTERN WILL HAVE A SOMEWHAT ZONAL FLOW PREVAILING OVER OUR REGION WITH A BROAD UPPER RIDGE OVER THE NORTHWEST AND TROUGHING OVER THE EASTERN SECTION OF CONUS BY MID WEEK. WE EXPECT DRY AND RATHER PLEASANT TEMPERATURES THIS COMING WEEK WITH BELOW NORMAL TEMPERATURES ESPECIALLY DAYTIME HOURS. 37 && AVIATION... MOST INLAND TAF SITES ARE EXPERIENCING LIGHT NORTH WINDS AND VFR CONDITIONS BEHIND A PRE-FRONTAL TROF THAT MOVED OFF SHORE LATE THIS MORNING. THE EXCEPTIONS WOULD BE KLBX AND KGLS WHERE TEMPO MVFR CIGS ARE POSSIBLE WITH SCATTERED SHOWERS THAT ARE EXTENDING FROM JUST ALONG THE COAST TO MORE THAN 120 MILES OFF SHORE. FLYING CONDITIONS SHOULD BE GREATLY IMPROVED ALONG THE COAST BEHIND THE COLD FRONT THAT SHOULD MOVE OFF THE COAST OVER NIGHT. ON MONDAY...SEARCH AND RESCUE INTERESTS WILL HAVE UNRESTRICTED VISIBILITY ALONG THE COAST...BUT RESCUERS WILL HAVE TO CONTEND WITH NORTH WINDS AT 15 TO 20 KNOTS. 44 && .MARINE... SCEC FLAGS CURRENTLY IN EFFECT FOR GULF WATERS 20 TO 60 MILES OFF SHORE WILL BE LOWERED THIS AFTERNOON...BUT WILL LIKELY NEED TO BE RAISED FOR ALL COASTAL WATERS OVERNIGHT AS A COLD FRONT MOVES OFF SHORE. POST FRONTAL OFFSHORE FLOW OF 15 TO 20 KNOTS SHOULD CONTINUE THROUGH EARLY NEXT WEEK. 44 && .PRELIMINARY POINT TEMPS/POPS... COLLEGE STATION (CLL) 63 84 58 84 60 / 10 10 10 10 10 HOUSTON (IAH) 66 82 58 83 60 / 30 10 10 10 10 GALVESTON (GLS) 71 81 68 82 69 / 50 20 10 10 10 && .HGX WATCHES/WARNINGS/ADVISORIES... TX...FLOOD WATCH UNTIL 7 PM CDT THIS EVENING FOR THE FOLLOWING ZONES: BRAZORIA...CHAMBERS...GALVESTON...JACKSON...MATAGORDA. GM...SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL 7 PM CDT THIS EVENING FOR THE FOLLOWING ZONES: WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL 20 NM TO 60 NM...WATERS FROM HIGH ISLAND TO FREEPORT 20 TO 60 NM. && $$