Expires:200804021300;;321957 FPUS55 KFGZ 012247 ZFPFGZ FIRE WEATHER PLANNING FORECAST FOR NORTHERN ARIZONA NATIONAL WEATHER SERVICE FLAGSTAFF AZ 300 PM MST TUE APR 1 2008 +++ THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS +++ +++ 20-FOOT WIND FORECAST OF 'LIGHT WINDS' INDICATES MAINLY TERRAIN DRIVEN WINDS +++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ .DISCUSSION...AN APPROACHING LOW PRESSURE SYSTEM WILL BRING AFTERNOON SOUTHWEST WINDS OF 15 TO 25 MPH WITH STRONGER GUSTS ON WEDNESDAY. MINIMUM RH VALUES FROM THE MOGOLLON RIM SOUTH AND WEST WILL GENERALLY BE HIGHER THAN ON TUESDAY WITH COOLER TEMPERATURES. HOWEVER...THE LITTLE COLORADO RIVER VALLEY CAN EXPECT RH VALUES TO DROP BELOW 15 PERCENT FOR AN HOUR OR TWO WEDNESDAY AFTERNOON. FOR THURSDAY...THE WEAK LOW PRESSURE SYSTEM WILL MOVE ACROSS ARIZONA AND BRING INCREASING MOISTURE AND WEAKER WINDS. A GENERAL NORTHWEST FLOW WILL SET UP ACROSS NORTHERN ARIZONA OVER THE WEEKEND WITH LOWER RELATIVE HUMIDITY VALUES BUT DAYTIME WINDS OF ONLY 10 TO 20 MPH. STRONG WINDS IN THE MIXING LEVEL WILL PROVIDE VERY GOOD TO EXCELLENT VENTILATION ON WEDNESDAY AFTERNOON. AZZ118-021300- NORTHERN GILA COUNTY (FIRE WEATHER ZONE 118)- INCLUDING THE CITIES OF...PAYSON...STRAWBERRY...YOUNG 300 PM MST TUE APR 1 2008 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR. MIN TEMPERATURE.....31-43 BELOW 5000 FEET...29-35 ABOVE 5000 FEET. 24 HR TREND......UP 10 DEGREES. MAX HUMIDITY........43-63 PCT BELOW 5000 FEET...49-69 PCT ABOVE 5000 FEET. 24 HR TREND......DOWN 19 PCT. WINDS (20 FT).......SOUTHWEST WINDS UP TO 10 MPH AND GUSTY IN THE EVENING BECOMING LIGHT. 10000 FT MSL WIND...SOUTHWEST 30 TO 40 MPH. CHANCE OF PRECIP....0 PERCENT. LAL.................1. HAINES INDEX........3 VERY LOW. .WEDNESDAY... SKY/WEATHER.........MOSTLY SUNNY. MAX TEMPERATURE.....65-76 BELOW 5000 FEET...59-68 ABOVE 5000 FEET. 24 HR TREND......LITTLE CHANGE. MIN HUMIDITY........11-16 PCT. 24 HR TREND......UP 3 PCT. WINDS (20 FT).......LIGHT WINDS BECOMING SOUTHWEST 15 TO 20 MPH WITH GUSTS TO AROUND 35 MPH IN THE AFTERNOON. 10000 FT MSL WIND...SOUTHWEST 25 TO 35 MPH. CHANCE OF PRECIP....0 PERCENT. LAL.................1. HAINES INDEX........3 VERY LOW. .WEDNESDAY NIGHT... SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS THROUGH THE NIGHT. MIN TEMPERATURE.....37-47 BELOW 5000 FEET...35-40 ABOVE 5000 FEET. 24 HR TREND......UP 7 DEGREES. MAX HUMIDITY........40-60 PCT BELOW 5000 FEET...43-63 PCT ABOVE 5000 FEET. 24 HR TREND......DOWN 4 PCT. WINDS (20 FT).......SOUTHWEST WINDS 15 TO 20 MPH WITH GUSTS TO AROUND 40 MPH DECREASING TO UP TO 10 MPH AFTER MIDNIGHT. 10000 FT MSL WIND...WEST 25 TO 35 MPH. CHANCE OF PRECIP....20 PERCENT. LAL.................1. HAINES INDEX........3 VERY LOW. .THURSDAY... SKY/WEATHER.........PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS AND SNOW SHOWERS IN THE MORNING. MAX TEMPERATURE.....60-70 BELOW 5000 FEET...54-63 ABOVE 5000 FEET. 24 HR TREND......DOWN 6 DEGREES. MIN HUMIDITY........19-24 PCT BELOW 5000 FEET...20-30 PCT ABOVE 5000 FEET. 24 HR TREND......UP 7 PCT. WINDS (20 FT).......LIGHT WINDS BECOMING WEST 10 TO 15 MPH. 10000 FT MSL WIND...NORTHWEST 15 TO 25 MPH. CHANCE OF PRECIP....10 PERCENT. LAL.................1. HAINES INDEX........2 VERY LOW. = $$ .EXTENDED (3 TO 5 DAY)... .FRIDAY...MOSTLY SUNNY. HIGHS FROM NEAR 47 IN THE MOUNTAINS TO NEAR 87 IN THE YAVAPAI COUNTY DESERTS. NORTHWEST TO NORTH WINDS AROUND 10 MPH. .SATURDAY...WARMER. PARTLY CLOUDY. HIGHS FROM NEAR 52 IN THE MOUNTAINS TO NEAR 91 IN THE YAVAPAI COUNTY DESERTS. SOUTHWEST WINDS 10 TO 20 MPH. .SUNDAY...WARMER. PARTLY CLOUDY. HIGHS IN THE 50S IN THE MOUNTAINS TO 80S IN THE YAVAPAI COUNTY DESERTS. WEST WINDS 10 TO 15 MPH. $$ .6 TO 10 DAY OUTLOOK FOR APR 07 - 11, 2008 NEAR NORMAL TEMPERATURES AND BELOW NORMAL PRECIPITATION. = $$ VENTILATION...TRANSPORT WIND AND MIXING HEIGHT ARE BASED ON THE FOLLOWING POINTS. ZONE 115...WILLIAMS.......6750 FT MSL. ZONE 106...TUSAYAN........6606 FT MSL. ZONE 108...PRESCOTT.......5052 FT MSL. ZONE 111...WINDOW ROCK....6739 FT MSL. ZONE 113...WINSLOW........4883 FT MSL. ZONE 117...WHITERIVER.....5225 FT MSL. VENTILATION CATEGORIES ARE DETERMINED BY CRITERIA ESTABLISHED BY EACH STATE. $$