FNUS74 KHGX 191300 FWSHGX SPOT FORECAST FOR DCNF C-35...DAVY CROCKETT NF NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX 700 AM CST THU JAN 19 2012 IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... ONSHORE WINDS WILL BRING AN INCREASE IN LOW LEVEL MOISTURE. UNSEASONABLY WARM TEMPERATURES ARE EXPECTED TODAY AND AGAIN FRIDAY. AREAS OF SEA FOG WILL BE POSSIBLE BEGINNING AS EARLY AS TONIGHT. THE SEA FOG COULD PLAGUE THE AREA THROUGH SUNDAY. MIXING HEIGHTS WILL REMAIN ON THE LOW SIDE AS A TEMPERATURE INVERSION DEVELOPS AROUND 3000 FEET. COMMENTS: A TEMPERATURE INVERSION SHOULD KEEP MIXING HEIGHTS BETWEEN 2000 AND 3000 FEET THIS AFTERNOON. DESPITE THE LOW MIXING HEIGHTS...TRANSPORT WINDS BE FAIRLY ROBUST...BETWEEN 20 AND 25 KNOTS. SURFACE DEW POINTS WILL CONTINUE TO CLIMB AND RH VALUES WILL BE RELATIVELY HIGH TODAY AND VERY HIGH OVERNIGHT. THE FOG THREAT TONIGHT IS MARGINAL THIS FAR INLAND. SURFACE WINDS WILL REMAIN SOUTH TO SOUTHWEST AND THIS TRAJECTORY IS UNFAVORABLE FOR SEA FOG TO TRAVEL INLAND. AT THIS TIME...FEEL LOW CEILINGS (LOW OVERCAST) WILL DEVELOP INSTEAD OF FOG. THAT SAID...ALL MODEL GUIDANCE IS FAVORING FOG. ONE MORE CAVEAT...THERE IS A GREAT DEAL OF DRY AIR ABOVE THE INVERSION LAYER. SINCE TRANSPORT WINDS ARE ARE SO ROBUST...SOME MIXING OF THE DRY LAYER COULD HELP ERODE THE CLOUD DECK AND PRODUCE A BIT MORE SUNSHINE THIS AFTERNOON. IF THIS OCCURS...MIXING HEIGHTS WILL BE HIGHER THAN FORECAST. .TODAY... TIME (CST) 9 AM 11 AM 1 PM 3 PM 5 PM SKY (%).........PCLDY PCLDY PCLDY PCLDY PCLDY WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE TEMP............50 61 68 71 68 RH..............89 72 63 59 65 20FT WIND DIR...S S S SW SW 20FT WIND (MPH).12 15 16 15 12 20FT WIND GUST..15 20 20 20 15 MIX HGT (FT)....1000 1500 1900 2200 2300 MIX HGT (M).....300 460 580 670 700 TRANS WIND DIR..190 200 200 210 210 TRANS SPD (KTS).14 16 20 21 21 TRANS SPD (M/S).7 8 10 11 11 .TONIGHT... TIME (CST) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........PCLDY PCLDY MCLDY MCLDY MCLDY MCLDY WEATHER COV..... PATCHY PATCHY PATCHY WEATHER TYPE....NONE NONE NONE FOG FOG FOG TEMP............63 61 59 57 56 55 RH..............81 84 87 93 93 93 20FT WIND DIR...SW S S S S S 20FT WIND (MPH).10 9 8 7 6 7 20FT WIND GUST..15 10 10 MIX HGT (FT)....2300 2100 1900 1600 1400 1100 MIX HGT (M).....700 640 580 490 430 340 TRANS WIND DIR..210 210 210 200 200 200 TRANS SPD (KTS).21 20 17 15 14 13 TRANS SPD (M/S).11 10 9 8 7 7 .FRIDAY... TIME (CST) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........MCLDY MCLDY MCLDY MCLDY PCLDY PCLDY WEATHER COV.....PATCHY PATCHY WEATHER TYPE....FOG FOG NONE NONE NONE NONE TEMP............54 55 63 70 74 74 RH..............100 100 90 76 66 66 20FT WIND DIR...S S S S S S 20FT WIND (MPH).8 8 9 12 14 15 20FT WIND GUST..10 10 10 15 20 20 MIX HGT (FT)....900 1200 1800 2500 3100 3300 MIX HGT (M).....270 370 550 760 940 1010 TRANS WIND DIR..200 200 200 210 210 210 TRANS SPD (KTS).13 15 18 22 25 26 TRANS SPD (M/S).7 8 9 11 13 13 $$ FORECASTER...ROESELER REQUESTED BY...CHET DIERINGER TYPE OF REQUEST...PRESCRIBED .TAG 20120119.DCNFC.01/HGX