Expires:201209072230;;168616
FPUS55 KCYS 070946
ZFPCYS
FIRE WEATHER PLANNING FORECAST FOR SOUTHEAST WYOMING/WESTERN NEBRASKA
NATIONAL WEATHER SERVICE CHEYENNE WY
346 AM MDT FRI SEP 7 2012
.DISCUSSION...NO FIRE WEATHER CONCERNS TODAY WITH INCREASED 
RELATIVE HUMIDITIES. ON SATURDAY...HUMIDITIES WILL APPROACH CRITICAL 
VALUES. FIRE WEATHER CONCERNS WILL INCREASE SUNDAY AND MONDAY AS A 
RIDGE ALOFT PREVAILS AND WINDS INCREASE IN THE AFTERNOONS. 

WYZ307-072230-
SNOWY RANGE/MEDICINE BOW NF-
346 AM MDT FRI SEP 7 2012
.TODAY...
SKY/WEATHER.........MOSTLY CLOUDY UNTIL 1200...THEN PARTLY CLOUDY. 
                    ISOLATED SHOWERS UNTIL 1200. 
MAX TEMPERATURE.....55-63. 
   24 HR TREND......10 DEGREES COOLER. 
MIN HUMIDITY........42-48 PERCENT. 
   24 HR TREND......26 PERCENT WETTER. 
20-FOOT WINDS.......SOUTHWEST AROUND 10 MPH WITH HIGHER GUSTS 
                    SHIFTING TO THE NORTH 10 TO 20 MPH WITH GUSTS 
                    TO AROUND 35 MPH IN THE AFTERNOON. 
LAL.................1. 
CHC OF WETTING RAIN.5 PERCENT. 
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH SHIFTING TO THE NORTH 
                    IN THE AFTERNOON. 
MIXING HEIGHT.......6100-8100 FT AGL. 
SMOKE DISPERSAL.....GOOD (73900 KNOT-FT) INCREASING TO VERY GOOD 
                    (133100 KNOT-FT) IN THE AFTERNOON. 
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME 
                    DOMINATED FIRE GROWTH. 
.TONIGHT...
SKY/WEATHER.........PARTLY CLOUDY UNTIL 2400...THEN CLEAR. 
MIN TEMPERATURE.....36-41. 
   24 HR TREND......2 DEGREES COOLER. 
MAX HUMIDITY........85-91 PERCENT. 
   24 HR TREND......11 PERCENT DRIER. 
HUMIDITY RECOVERY...EXCELLENT. 
20-FOOT WINDS.......SOUTHEAST 10 TO 15 MPH. GUSTS UP TO 35 MPH 
                    DECREASING TO 20 MPH AFTER MIDNIGHT. 
LAL.................1. 
CHC OF WETTING RAIN.ZERO PERCENT. 
TRANSPORT WINDS.....EAST AROUND 15 MPH. 
MIXING HEIGHT.......3900-5200 FT AGL DECREASING TO 400-1500 FT AGL 
                    AFTER MIDNIGHT. 
SMOKE DISPERSAL.....GOOD (66800 KNOT-FT) DECREASING TO POOR (11000 
                    KNOT-FT) AFTER MIDNIGHT. 
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME 
                    DOMINATED FIRE GROWTH. 
.SATURDAY...
SKY/WEATHER.........MOSTLY SUNNY. 
MAX TEMPERATURE.....61-69. 
   24 HR TREND......7 DEGREES WARMER. 
MIN HUMIDITY........18-24 PERCENT. 
   24 HR TREND......20 PERCENT DRIER. 
20-FOOT WINDS.......SOUTHEAST AROUND 10 MPH SHIFTING TO THE NORTH 
                    WITH HIGHER GUSTS IN THE AFTERNOON. 
LAL.................1. 
CHC OF WETTING RAIN.ZERO PERCENT. 
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH SHIFTING TO THE NORTH 
                    IN THE AFTERNOON. 
MIXING HEIGHT.......2700-3500 FT AGL INCREASING TO 5000-6200 FT AGL 
                    IN THE AFTERNOON. 
SMOKE DISPERSAL.....POOR TO GOOD (30500-76700 KNOT-FT). 
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME 
                    DOMINATED FIRE GROWTH. 
.FORECAST DAYS 3 THROUGH 7...
.SUNDAY...CLEAR. LOWS IN THE LOWER 40S. HIGHS AROUND 70.
SOUTHWEST WINDS AROUND 10 MPH. 
.MONDAY...PARTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 40S. HIGHS AROUND 70. SOUTHWEST WINDS AROUND
10 MPH. 
.TUESDAY...MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 40S. HIGHS IN THE MID 60S. WEST WINDS AROUND
10 MPH. 
.WEDNESDAY...PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE MID 60S. 
.THURSDAY...MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE MID 60S. 
$$