Expires:200804021000;;321939 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. AZZ115-021000- WESTERN MOGOLLON RIM (FIRE WEATHER ZONE 115)- INCLUDING THE CITIES OF...FLAGSTAFF...WILLIAMS...MUNDS PARK 300 PM MST TUE APR 1 2008 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY. MIN TEMPERATURE.....21-32. 24 HR TREND......LITTLE CHANGE. MAX HUMIDITY........59-79 PCT. 24 HR TREND......DOWN 9 PCT. WINDS (20 FT).......SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 30 MPH IN THE EVENING BECOMING LIGHT. 10000 FT MSL WIND...SOUTHWEST 25 TO 35 MPH. CHANCE OF PRECIP....0 PERCENT. LAL.................1. HAINES INDEX........2 VERY LOW. .WEDNESDAY... SKY/WEATHER.........PARTLY CLOUDY. MAX TEMPERATURE.....53-62. 24 HR TREND......DOWN 3 DEGREES. MIN HUMIDITY........14-19 PCT. 24 HR TREND......UP 4 PCT. WINDS (20 FT).......LIGHT WINDS BECOMING SOUTHWEST 15 TO 20 MPH WITH GUSTS TO AROUND 35 MPH. 10000 FT MSL WIND...SOUTHWEST 25 TO 35 MPH. CHANCE OF PRECIP....0 PERCENT. LAL.................1. HAINES INDEX........3 VERY LOW. MIXING HEIGHT.......6300 FT AGL. TRANSPORT WINDS.....SOUTHWEST AROUND 20 KNOTS. VENTILATION.........EXCELLENT (138700 KNOT-FT). .WEDNESDAY NIGHT... SKY/WEATHER.........MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS IN THE EVENING...A CHANCE OF RAIN SHOWERS AND SNOW SHOWERS AFTER MIDNIGHT. MIN TEMPERATURE.....29-39. 24 HR TREND......UP 7 DEGREES. MAX HUMIDITY........52-72 PCT. 24 HR TREND......DOWN 11 PCT. WINDS (20 FT).......SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO 35 MPH. 10000 FT MSL WIND...WEST 25 TO 35 MPH. CHANCE OF PRECIP....40 PERCENT. LAL.................1. HAINES INDEX........2 VERY LOW. .THURSDAY... SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS AND SNOW SHOWERS THROUGH THE DAY. MAX TEMPERATURE.....48-56. 24 HR TREND......LITTLE CHANGE. MIN HUMIDITY........22-32 PCT. 24 HR TREND......UP 9 PCT. WINDS (20 FT).......WEST WINDS AROUND 10 MPH WITH HIGHER GUSTS. 10000 FT MSL WIND...NORTHWEST 15 TO 25 MPH. CHANCE OF PRECIP....20 PERCENT. LAL.................1. HAINES INDEX........3 VERY LOW. = $$