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050
FNUS75 KBOI 252223
FWSBOI

SPOT FORECAST FOR COTTONWOOD...PAYETTE NATIONAL FOREST
NATIONAL WEATHER SERVICE BOISE ID
423 PM MDT FRI JUL 25 2014

FORECAST IS BASED ON REQUEST TIME OF 1549 MDT ON JULY 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...DRY WITH A WARMING TREND THROUGH THE WEEKEND...THEN A SLIGHT
CHANCE OF THUNDERSTORMS NEXT WEEK...

.DISCUSSION...
HIGH PRESSURE WILL STRENGTHEN OVER THE AREA THROUGH WEEKEND
RESULTING IN DRY CONDITIONS AND A WARMING TREND. LIGHT TERRAIN
DRIVEN WINDS WILL PREVAIL. HUMIDITIES WILL TREND DOWNWARD WITH
POOR NIGHTTIME RECOVERIES. SOUTHERLY FLOW WILL DEVELOP EARLY NEXT
WEEK AND TRANSPORT MID AND HIGH LEVEL MOISTURE INTO THE AREA. THIS
WILL BRING A SLIGHT CHANCE OF THUNDERSTORMS NEXT WEEK...ALONG WITH
SLIGHTLY LOWER TEMPERATURES AND HIGHER HUMIDITIES.

.TONIGHT...

SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....50 TO 55.
MAX HUMIDITY........45 TO 55 PERCENT.
WIND - EYE LEVEL....WEST 3 TO 6 MPH WITH GUSTS TO 15 MPH...BECOMING
                    DOWNSLOPE AROUND 3 MPH AFTER SUNSET.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WIND......NORTHEAST AROUND 5 MPH.
VENTILATION INDEX...20 POOR.

.SATURDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....82 TO 87.
MIN HUMIDITY........12 TO 17 PERCENT.
WIND - EYE LEVEL....DOWNSLOPE AROUND 3 MPH IN THE MORNING...BECOMING
                    UPSLOPE OR SOUTHWEST 3 TO 5 MPH IN THE AFTERNOON.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......9500 FT AGL.
TRANSPORT WIND......SOUTHWEST AROUND 5 MPH.
VENTILATION INDEX...475 FAIR.

.SATURDAY NIGHT...

SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....58 TO 63.
MAX HUMIDITY........35 TO 45 PERCENT.
WIND - EYE LEVEL....UPSLOPE OR SOUTHWEST 3 TO 5 MPH BECOMING
                    DOWNSLOPE AROUND 3 MPH AFTER SUNSET.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......100 FT AGL.
TRANSPORT WIND......NORTHEAST AROUND 5 MPH.
VENTILATION INDEX...5 POOR.

.SUNDAY...

SKY/WEATHER.........SUNNY IN THE MORNING...INCREASING CLOUDS
                    IN THE AFTERNOON.
MAX TEMPERATURE.....87 TO 92.
MIN HUMIDITY........11 TO 16 PERCENT.
WIND - EYE LEVEL....DOWNSLOPE AROUND 3 MPH IN THE MORNING...BECOMING
                    UPSLOPE OR SOUTHWEST 3 TO 5 MPH IN THE AFTERNOON.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......12500 FT AGL.
TRANSPORT WIND......SOUTHWEST AROUND 5 MPH.
VENTILATION INDEX...625 GOOD.

OUTLOOK FOR MONDAY...PARTLY CLOUDY. A SLIGHT CHANCE OF AFTERNOON
SHOWERS AND THUNDERSTORMS. TEMPERATURES DOWN 1 TO 3 AND HUMIDITIES UP
3 TO 5. LIGHT SLOPE/VALLEY WINDS.

$$
FORECASTER...WOJCIK
REQUESTED BY...PAYETTE NATIONAL FOREST
TYPE OF REQUEST...WILDFIRE
.TAG 20140725.COTTO.03/BOI




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