FNUS74 KMOB 181207 FWSMOB SPOT FORECAST FOR JACKSON GUARD...E.N.R. NATIONAL WEATHER SERVICE MOBILE AL 707 AM CDT THU APR 18 2013 FORECAST IS BASED ON IGNITION TIME OF 0900 CDT ON APRIL 18. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION...A MOIST SOUTHEASTERLY TO SOUTHERLY FLOW WILL CONTINUE ACROSS THE REGION TODAY AHEAD OF A COLD FRONT THAT WILL BE APPROACHING FROM THE WEST. DISPERSIONS WILL BE GOOD THIS AFTERNOON. A LINE OF SHOWERS AND THUNDERSTORMS WILL SPREAD FROM WEST TO EAST ACROSS OUR AREA LATE TONIGHT INTO FRIDAY. FREQUENT LIGHTNING STRIKES AND STRONG WIND GUSTS WILL BE POSSIBLE WITH THE STRONGER THUNDERSTORMS EMBEDDED WITHIN THE LINE. THE COLD FRONT WILL PUSH ACROSS THE REGION FRIDAY... WITH NORTHWESTERLY TO NORTHERLY WINDS AND COOLER AIR FOLLOWING IN ITS WAKE. RAIN CHANCES SHOULD COME TO AN END BY LATE FRIDAY NIGHT...WITH A DRIER AIRMASS ARRIVING FOR SATURDAY. RELATIVE HUMIDITY VALUES LOOK TO REMAIN ABOVE CRITICAL LEVELS INTO THIS WEEKEND. FOG POTENTIAL AND OTHER REMARKS...PATCHY FOG WILL BE POSSIBLE EARLY THIS MORNING. FOG MAY BE LOCALLY DENSE...ESPECIALLY IN LOW LYING AREAS AND NEAR AREA RIVERS. .TODAY... SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). PATCHY FOG EARLY IN THE MORNING. MAX TEMPERATURE.....AROUND 79. MIN HUMIDITY........70 PERCENT. WIND (20 FT)........EAST WINDS AROUND 7 MPH INCREASING TO SOUTHEAST 16 TO 18 MPH. MIXING HEIGHT.......500 FT AGL INCREASING TO 1300 FT AGL EARLY IN THE MORNING...THEN INCREASING TO 2800 FT AGL IN THE LATE MORNING AND EARLY AFTERNOON DECREASING TO 2500 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........SOUTHEAST AROUND 15 MPH INCREASING TO SOUTH 20 TO 24 MPH. DISPERSION INDEX....14 INCREASING TO 52. LVORI...............5 DECREASING TO 3. TIME (CDT) 9 AM 11 AM 1 PM 3 PM 5 PM SKY (%)...........63 63 63 63 63 WEATHER COV....... WEATHER TYPE......NONE NONE NONE NONE NONE TEMP..............73 77 78 79 77 RH................81 72 70 72 76 20 FT WIND DIR....SE SE SE SE SE 20 FT WIND SPD....14 16 17 17 16 20 FT WIND GUST...24 28 29 29 26 MIX HGT (FT)......1300 2800 2800 2800 2500 MIX HGT (M).......400 850 850 850 760 TRANSP WIND DIR...SE SE S S S TRANSP WIND SPD...20 24 22 22 22 TRANS SPD (M/S)...9 11 10 10 10 DISPERSION........29 56 51 51 47 LVORI.............4 3 3 3 3 CWR...............10 10 10 10 10 .TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SLIGHT CHANCE OF THUNDERSTORMS AND SHOWERS AFTER MIDNIGHT. MIN TEMPERATURE.....AROUND 70. MAX HUMIDITY........99 PERCENT. WIND (20 FT)........SOUTH WINDS 15 TO 17 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS AFTER MIDNIGHT. MIXING HEIGHT.......2500 FT AGL DECREASING TO 1100-1300 FT AGL. MIXING WINDS........SOUTH AROUND 22 MPH DECREASING TO 14 TO 17 MPH. DISPERSION INDEX....47 DECREASING TO 16. LVORI...............3 INCREASING TO 5. TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%)...........63 64 64 64 82 82 WEATHER COV....... S CHC S CHC WEATHER TYPE......NONE NONE NONE NONE TSTORM TSTORM TEMP..............76 74 74 74 73 71 RH................80 85 86 86 88 92 20 FT WIND DIR....SE SE S S S S 20 FT WIND SPD....16 14 14 14 14 14 20 FT WIND GUST...26 24 24 24 24 23 MIX HGT (FT)......2500 1300 1100 1100 1100 1200 MIX HGT (M).......760 400 340 340 340 370 TRANSP WIND DIR...S S SE SE S S TRANSP WIND SPD...22 17 14 14 16 14 TRANS SPD (M/S)...10 8 6 6 7 6 DISPERSION........47 19 12 12 14 12 LVORI.............3 4 4 4 4 5 CWR...............10 10 10 10 30 30 .FRIDAY... SKY/WEATHER.........CLOUDY (85-95 PERCENT). THUNDERSTORMS AND SHOWERS. MAX TEMPERATURE.....AROUND 70. MIN HUMIDITY........62 PERCENT. WIND (20 FT)........SOUTH WINDS 13 TO 15 MPH SHIFTING TO THE SOUTHWEST AROUND 15 MPH LATE IN THE MORNING...THEN SHIFTING TO THE NORTH 15 TO 17 MPH IN THE AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE MORNING. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON. MIXING HEIGHT.......1200-1400 FT AGL INCREASING TO 3100 FT AGL LATE IN THE MORNING...THEN DECREASING TO 1900-2000 FT AGL IN THE AFTERNOON. MIXING WINDS........SOUTH 14 TO 17 MPH INCREASING TO SOUTHWEST AROUND 21 MPH LATE IN THE MORNING...THEN SHIFTING TO THE NORTH 17 TO 21 MPH IN THE AFTERNOON. DISPERSION INDEX....12 INCREASING TO 27 EARLY IN THE MORNING...THEN INCREASING TO 50 LATE IN THE MORNING DECREASING TO 37 IN THE AFTERNOON. LVORI...............5 DECREASING TO 1. TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%)...........82 100 100 100 95 95 WEATHER COV.......S CHC DEFNTE DEFNTE DEFNTE DEFNTE DEFNTE WEATHER TYPE......TSTORM TSTORM TSTORM TSTORM RNSHWR RNSHWR TEMP..............71 70 68 68 66 67 RH................95 93 87 77 72 63 20 FT WIND DIR....S S SW SW NW N 20 FT WIND SPD....14 12 14 14 14 16 20 FT WIND GUST...23 21 23 23 23 28 MIX HGT (FT)......1200 1400 3100 3100 2000 1900 MIX HGT (M).......370 430 940 940 610 580 TRANSP WIND DIR...S S SW SW N N TRANSP WIND SPD...14 17 21 21 17 21 TRANS SPD (M/S)...6 8 9 9 8 9 DISPERSION........12 27 50 50 34 39 LVORI.............5 4 3 3 3 1 CWR...............30 80 80 80 80 80 $$ FORECASTER...32 REQUESTED BY...DISPATCH TYPE OF REQUEST...PRESCRIBED .TAG 20130418.JACKS.01/MOB