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. 
 

 AZZ146-121445-
 ARIZONA FIRE WEATHER ZONE 146
 NORTHERN GREENLEE COUNTY-GRAHAM COUNTY NORTH OF GILA RIVER-
 APACHE NF/SAN CARLOS BIA/SDC-
 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.........46 TO 56 DEGS
    ABOVE 5000 FT.........38 TO 48 DEGS
    24 HR TREND...........LITTLE CHANGE. 
 MAX HUMIDITY.............
    BELOW 5000 FT.........19 TO 25 PCT
    ABOVE 5000 FT.........25 TO 35 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 20 TO 30 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.........79 TO 89 DEGS
    ABOVE 5000 FT.........70 TO 80 DEGS
    24 HR TREND...........UP 2 DEGS. 
 MIN HUMIDITY.............
    BELOW 5000 FT.........3 TO 9 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............11344 FT AGL. 
 TRANSPORT WINDS..........SOUTHWEST 18 KNOTS. 
 VENTILATION CATEGORY.....EXCELLENT (204192 KNOT-FT). 
 
 .MONDAY NIGHT...
 SKY/WEATHER..............MOSTLY CLEAR. BREEZY TO WINDY IN THE 
                          EVENING. 
 MIN TEMPERATURE..........
    BELOW 5000 FT.........43 TO 53 DEGS
    ABOVE 5000 FT.........35 TO 45 DEGS
    24 HR TREND...........DOWN 3 DEGS. 
 MAX HUMIDITY.............
    BELOW 5000 FT.........25 TO 31 PCT
    ABOVE 5000 FT.........31 TO 41 PCT
    24 HR TREND...........UP 6 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 SUNNY AND BREEZY. SLIGHT CHANCE OF 
                          SHOWERS AND THUNDERSTORMS IN THE MORNING...
                          THEN CHANCE OF SHOWERS AND THUNDERSTORMS IN 
                          THE AFTERNOON. 
 MAX TEMPERATURE..........
    BELOW 5000 FT.........68 TO 78 DEGS
    ABOVE 5000 FT.........59 TO 69 DEGS
    24 HR TREND...........DOWN 11 DEGS. 
 MIN HUMIDITY.............
    BELOW 5000 FT.........13 TO 19 PCT
    ABOVE 5000 FT.........16 TO 21 PCT
    24 HR TREND...........UP 10 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.........30 PCT. 
 LAL......................3 UNTIL 1200...THEN 4. 
 HAINES INDEX.............4 LOW. 
 MIXING HEIGHT............9762 FT AGL. 
 TRANSPORT WINDS..........WEST 14 KNOTS. 
 VENTILATION CATEGORY.....EXCELLENT (136668 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 33 TO 48. HIGHS 63 TO 78. NORTHWEST WIND AROUND 
 15 MPH. MINIMUM HUMIDITY 15 TO 30 PCT. 
 .THURSDAY...PARTLY CLOUDY. LOWS 39 TO 54. HIGHS 69 TO 84. NO
 SIGNIFICANT WIND OVER 15 MPH. MINIMUM HUMIDITY 10 TO 23 PCT. 
 .FRIDAY...PARTLY CLOUDY. LOWS 39 TO 54. HIGHS 71 TO 86. NO 
 SIGNIFICANT WIND OVER 15 MPH. MINIMUM HUMIDITY 9 TO 23 PCT. 
 .SATURDAY...PARTLY CLOUDY. LOWS 40 TO 55. HIGHS 72 TO 87. 
 .SUNDAY...MOSTLY CLEAR. LOWS 38 TO 53. HIGHS 75 TO 90. 
 
 NOTE TO USERS - ZONE 146 VENTILATION CATEGORY...MIXING HEIGHT AND
 TRANSPORT WINDS ARE BASED ON THE POINT OF PINES LOCATION (6040 MSL)
 

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