FNUS55 KTWC 212146
 FWFTWC
 
 FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST ARIZONA
 NATIONAL WEATHER SERVICE TUCSON AZ
 203 PM MST THU AUG 21 2008
 
 .DISCUSSION...DRY WESTERLY FLOW ALOFT WILL LIMIT THUNDERSTORM 
 CHANCES TO AREAS EAST AND SOUTH OF TUCSON THROUGH SATURDAY. SOME 
 INCREASE IN MOISTURE WILL RESULT IN AN INCREASED CHANCE OF AFTERNOON 
 AND EVENING THUNDERSTORMS SUNDAY THROUGH WEDNESDAY. ABOVE NORMAL 
 DAYTIME HIGH TEMPERATURES TO OCCUR INTO EARLY NEXT WEEK.
 

 AZZ148-221415-
 ARIZONA FIRE WEATHER ZONE 148
 GRAHAM COUNTY SOUTH OF GILA RIVER-TUCSON/MARANA/GREEN
 VALLEY-SANTA CRUZ-COCHISE COUNTY-CORONADO NF/
 SAFFORD BLM/TDC-
 203 PM MST THU AUG 21 2008
 
 .TONIGHT...
 SKY/WEATHER..............MOSTLY CLEAR. 
 MIN TEMPERATURE..........
    BELOW 5000 FT.........64 TO 74 DEGS
    ABOVE 5000 FT.........52 TO 64 DEGS
    24 HR TREND...........LITTLE CHANGE. 
 MAX HUMIDITY.............
    BELOW 5000 FT.........58 TO 68 PCT
    ABOVE 5000 FT.........68 TO 79 PCT
    24 HR TREND...........UP 10 PCT. 
 WIND (20 FT/10-MIN AVG)..DOWNSLOPE/DOWNVALLEY 5 TO 10 MPH. 
 FREE-AIR WIND (10K FT)...NORTHWEST 10 TO 15 MPH. 
 CHANCE OF PRECIP.........0 PCT. 
 LAL......................1. 
 HAINES INDEX.............2 VERY LOW. 
 
 .FRIDAY...
 SKY/WEATHER..............SUNNY. 
 MAX TEMPERATURE..........
    BELOW 5000 FT.........88 TO 98 DEGS
    ABOVE 5000 FT.........75 TO 88 DEGS
    24 HR TREND...........LITTLE CHANGE. 
 MIN HUMIDITY.............
    BELOW 5000 FT.........18 TO 28 PCT
    ABOVE 5000 FT.........28 TO 39 PCT
    24 HR TREND...........UP 3 PCT. 
 WIND (20 FT/10-MIN AVG)..UPSLOPE/UPVALLEY 5 TO 10 MPH. 
 FREE-AIR WIND (10K FT)...NORTHWEST 10 TO 15 MPH. 
 CHANCE OF PRECIP.........0 PCT. 
 LAL......................1. 
 HAINES INDEX.............3 VERY LOW. 
 MIXING HEIGHT............10236 FT AGL. 
 TRANSPORT WINDS..........NORTHWEST 5 KNOTS. 
 VENTILATION CATEGORY.....GOOD (51180 KNOT-FT). 
 
 .FRIDAY NIGHT...
 SKY/WEATHER..............MOSTLY CLEAR. 
 MIN TEMPERATURE..........
    BELOW 5000 FT.........64 TO 74 DEGS
    ABOVE 5000 FT.........53 TO 64 DEGS
    24 HR TREND...........LITTLE CHANGE. 
 MAX HUMIDITY.............
    BELOW 5000 FT.........62 TO 72 PCT
    ABOVE 5000 FT.........68 TO 78 PCT
    24 HR TREND...........UP 3 PCT. 
 WIND (20 FT/10-MIN AVG)..DOWNSLOPE/DOWNVALLEY 5 TO 10 MPH. 
 FREE-AIR WIND (10K FT)...NORTHWEST AROUND 15 MPH BECOMING NORTHEAST 
                          AROUND 5 MPH AFTER MIDNIGHT. 
 CHANCE OF PRECIP.........0 PCT. 
 LAL......................1. 
 HAINES INDEX.............3 VERY LOW. 
 
 .SATURDAY...
 SKY/WEATHER..............SUNNY. SLIGHT CHANCE OF SHOWERS AND 
                          THUNDERSTORMS IN THE AFTERNOON. 
 MAX TEMPERATURE..........
    BELOW 5000 FT.........90 TO 100 DEGS
    ABOVE 5000 FT.........77 TO 90 DEGS
    24 HR TREND...........LITTLE CHANGE. 
 MIN HUMIDITY.............
    BELOW 5000 FT.........17 TO 27 PCT
    ABOVE 5000 FT.........27 TO 38 PCT
    24 HR TREND...........LITTLE CHANGE. 
 WIND (20 FT/10-MIN AVG)..UPSLOPE/UPVALLEY 5 TO 10 MPH. 
 FREE-AIR WIND (10K FT)...NORTH 10 TO 15 MPH. 
 CHANCE OF PRECIP.........10 PCT. 
 LAL......................1 UNTIL 1200...THEN 2. 
 HAINES INDEX.............3 VERY LOW. 
 MIXING HEIGHT............12396 FT AGL. 
 TRANSPORT WINDS..........EAST 5 KNOTS. 
 VENTILATION CATEGORY.....GOOD (61980 KNOT-FT). 
 
 .FORECAST DAYS 3 THROUGH 7...
 WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
 .SUNDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
 THUNDERSTORMS. LOWS 60 TO 75. HIGHS 87 TO 102. NO SIGNIFICANT
 WIND OVER 15 MPH. MINIMUM HUMIDITY 22 TO 37 PCT. 
 .MONDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
 THUNDERSTORMS. LOWS 59 TO 74. HIGHS 86 TO 101. NO SIGNIFICANT
 WIND OVER 15 MPH. MINIMUM HUMIDITY 27 TO 42 PCT. 
 .TUESDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
 THUNDERSTORMS. LOWS 59 TO 73. HIGHS 87 TO 102. WEST WIND AROUND
 15 MPH. MINIMUM HUMIDITY 27 TO 42 PCT. 
 .WEDNESDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
 THUNDERSTORMS. LOWS 59 TO 74. HIGHS 86 TO 101. 
 .THURSDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
 THUNDERSTORMS. LOWS 59 TO 74. HIGHS 85 TO 100. 
 
 NOTE TO USERS - ZONE 148 VENTILATION CATEGORY...MIXING HEIGHT AND
 TRANSPORT WINDS ARE BASED ON THE CHIRICAHUA N.M. LOCATION (5400 MSL)
 

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