FNUS55 KTWC 112152
 FWFTWC
 
 FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST ARIZONA
 NATIONAL WEATHER SERVICE TUCSON AZ
 252 PM MST SUN MAY 11 2008
 
 ...FIRE WEATHER WATCH IN EFFECT MONDAY MORNING THROUGH MONDAY 
 EVENING FOR COCHISE...SANTA CRUZ...GRAHAM...GREENLEE AND EASTERN 
 PIMA COUNTIES...AS WELL AS EASTERN PORTIONS OF SOUTHEAST PINAL 
 COUNTY AND THE TOHONO OODHAM NATION FOR STRONG AND GUSTY WINDS...LOW 
 RELATIVE HUMIDITIES...AND A VERY HIGH TO EXTREME FIRE DANGER 
 RATING...
 
 .DISCUSSION...WARM AND DRY WEATHER WILL CONTINUE THE REST OF THIS 
 AFTERNOON AS HIGH PRESSURE TRANSITIONS EASTWARD ACROSS THE STATE. A 
 DEEP LOW PRESSURE SYSTEM OVER THE PACIFIC NORTHWEST WILL DROP SOUTH 
 INTO ARIZONA ON TUESDAY. THIS WILL RESULT IN STRONG AND GUSTY WINDS 
 MONDAY. WITH DRY AIR IN PLACE AND A VERY HIGH TO EXTREME FIRE DANGER 
 ACROSS SOUTHEAST ARIZONA...A FIRE WEATHER WATCH HAS BEEN ISSUED FOR 
 MONDAY FOR FIRE WEATHER ZONE 146 (NORTHERN GREENLEE AND GRAHAM 
 COUNTIES) FIRE WEATHER ZONE 148 (COCHISE...SANTA CRUZ...EASTERN 
 PIMA...AND SOUTHERN GREENLEE AND GRAHAM COUNTIES) AND EASTERN FIRE 
 WEATHER ZONE 147 (EASTERN PORTIONS OF SOUTHEAST PINAL COUNTY AND THE 
 TOHONO OODHAM NATION). THE FIRE WEATHER WATCH IS IN EFFECT ON MONDAY 
 FROM 10 AM MST UNTIL 8 PM MST. OTHERWISE...THIS STORM SYSTEM WILL 
 BRING INCREASED CLOUD COVER AND MUCH COOLER TEMPERATURES. THERE WILL 
 ALSO BE A CHANCE OF SHOWERS AND THUNDERSTORMS TUESDAY INTO EARLY 
 WEDNESDAY...MAINLY OVER THE EASTERN HALF OF THE FORECAST AREA... 
 ESPECIALLY IN THE WHITE MOUNTAINS AND THE HIGHER TERRAIN OF GRAHAM 
 AND COCHISE COUNTIES. 
 

 AZZ148-121445-
 ARIZONA FIRE WEATHER ZONE 148
 GRAHAM COUNTY SOUTH OF GILA RIVER-TUCSON/MARANA/GREEN
 VALLEY-SANTA CRUZ-COCHISE COUNTY-CORONADO NF/
 SAFFORD BLM/TDC-
 252 PM MST SUN MAY 11 2008
 
 ...FIRE WEATHER WATCH IN EFFECT FROM MONDAY MORNING THROUGH MONDAY 
 EVENING...
 
 .TONIGHT...
 SKY/WEATHER..............MOSTLY CLEAR. 
 MIN TEMPERATURE..........
    BELOW 5000 FT.........50 TO 60 DEGS
    ABOVE 5000 FT.........43 TO 53 DEGS
    24 HR TREND...........UP 2 DEGS. 
 MAX HUMIDITY.............
    BELOW 5000 FT.........16 TO 24 PCT
    ABOVE 5000 FT.........19 TO 28 PCT
    24 HR TREND...........LITTLE CHANGE. 
 WIND (20 FT/10-MIN AVG)..WEST AROUND 15 MPH IN THE EVENING BECOMING 
                          DOWNSLOPE/DOWNVALLEY 5 TO 10 MPH. 
 FREE-AIR WIND (10K FT)...SOUTHWEST 15 TO 25 MPH. 
 CHANCE OF PRECIP.........0 PCT. 
 LAL......................1. 
 HAINES INDEX.............5 MODERATE. 
 
 .MONDAY...
 SKY/WEATHER..............MOSTLY SUNNY. BREEZY TO WINDY. 
 MAX TEMPERATURE..........
    BELOW 5000 FT.........83 TO 93 DEGS
    ABOVE 5000 FT.........71 TO 82 DEGS
    24 HR TREND...........LITTLE CHANGE. 
 MIN HUMIDITY.............
    BELOW 5000 FT.........3 TO 8 PCT
    ABOVE 5000 FT.........6 TO 11 PCT
    24 HR TREND...........LITTLE CHANGE. 
 WIND (20 FT/10-MIN AVG)..UPSLOPE/UPVALLEY 5 TO 10 MPH BECOMING 
                          SOUTHWEST 15 TO 25 MPH BY LATE MORNING. 
 FREE-AIR WIND (10K FT)...SOUTHWEST 20 TO 30 MPH. 
 CHANCE OF PRECIP.........0 PCT. 
 LAL......................1. 
 HAINES INDEX.............5 MODERATE. 
 MIXING HEIGHT............13178 FT AGL. 
 TRANSPORT WINDS..........SOUTHWEST 19 KNOTS. 
 VENTILATION CATEGORY.....EXCELLENT (250382 KNOT-FT). 
 
 .MONDAY NIGHT...
 SKY/WEATHER..............MOSTLY CLEAR. BREEZY TO WINDY IN THE
                          EVENING.  
 MIN TEMPERATURE..........
    BELOW 5000 FT.........51 TO 61 DEGS
    ABOVE 5000 FT.........42 TO 52 DEGS
    24 HR TREND...........LITTLE CHANGE. 
 MAX HUMIDITY.............
    BELOW 5000 FT.........21 TO 29 PCT
    ABOVE 5000 FT.........24 TO 33 PCT
    24 HR TREND...........UP 5 PCT. 
 WIND (20 FT/10-MIN AVG)..SOUTHWEST 15 TO 25 MPH IN THE EVENING 
                          BECOMING DOWNSLOPE/DOWNVALLEY 5 TO 10 MPH 
                          OVERNIGHT. 
 FREE-AIR WIND (10K FT)...SOUTHWEST 20 TO 30 MPH. 
 CHANCE OF PRECIP.........0 PCT. 
 LAL......................1. 
 HAINES INDEX.............4 LOW. 
 
 .TUESDAY...
 SKY/WEATHER..............PARTLY CLOUDY AND BREEZY. SLIGHT CHANCE OF 
                          SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. 
 MAX TEMPERATURE..........
    BELOW 5000 FT.........73 TO 83 DEGS
    ABOVE 5000 FT.........61 TO 72 DEGS
    24 HR TREND...........DOWN 10 DEGS. 
 MIN HUMIDITY.............
    BELOW 5000 FT.........10 TO 15 PCT
    ABOVE 5000 FT.........13 TO 18 PCT
    24 HR TREND...........UP 7 PCT. 
 WIND (20 FT/10-MIN AVG)..UPSLOPE/UPVALLEY 5 TO 10 MPH BECOMING WEST 
                          15 TO 20 MPH IN THE AFTERNOON. 
 FREE-AIR WIND (10K FT)...WEST 15 TO 25 MPH. 
 CHANCE OF PRECIP.........20 PCT. 
 LAL......................1 UNTIL 1200...THEN 3. 
 HAINES INDEX.............4 LOW. 
 MIXING HEIGHT............13291 FT AGL. 
 TRANSPORT WINDS..........WEST 16 KNOTS. 
 VENTILATION CATEGORY.....EXCELLENT (212656 KNOT-FT). 
 
 .FORECAST DAYS 3 THROUGH 7...
 WINDS IN DAYS 3 THROUGH 5 ARE SURFACE 20 FT/10-MIN AVG
 .WEDNESDAY...PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND 
 THUNDERSTORMS. LOWS 40 TO 54. HIGHS 71 TO 86. WEST WIND AROUND 20 
 MPH. MINIMUM HUMIDITY 11 TO 26 PCT. 
 .THURSDAY...PARTLY CLOUDY. LOWS 44 TO 59. HIGHS 75 TO 90. WEST WIND 
 AROUND 15 MPH. MINIMUM HUMIDITY 11 TO 26 PCT. 
 .FRIDAY...MOSTLY CLEAR. LOWS 46 TO 60. HIGHS 78 TO 93. NORTHEAST 
 WIND AROUND 15 MPH. MINIMUM HUMIDITY 11 TO 26 PCT. 
 .SATURDAY...MOSTLY CLEAR. LOWS 47 TO 61. HIGHS 80 TO 95. 
 .SUNDAY...MOSTLY CLEAR. LOWS 47 TO 61. HIGHS 82 TO 97. 
 
 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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