FNUS75 KBOI 281817
FWSBOI

SPOT FORECAST FOR COPPER FIRE...PAYETTE NF
NATIONAL WEATHER SERVICE BOISE ID
1217 PM MDT WED JUL 28 2010

FORECAST IS BASED ON REQUEST TIME OF 1146 MDT ON JULY 28.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...STRONG THUNDERSTORMS THIS AFTERNOON AND EVENING...

.DISCUSSION...
AN UPPER LEVEL WAVE ALONG THE IDAHO/NEVADA BORDER WILL REACH THE
PAYETTE NATIONAL FOREST AND COPPER FIRE AFTER 1400 HOURS. STORMS
MAY BECOME QUITE STRONG WITH ABUNDANT LIGHTNING AND GUSTY WINDS.
DRIER AIR WILL COME IN FROM THE SOUTHWEST BEHIND THE WAVE TONIGHT
WITH THE THUNDERSTORM ACTIVITY DIMINISHING AROUND MIDNIGHT.

.REST OF TODAY...

SKY/WEATHER.........BECOMING MOSTLY CLOUDY THIS AFTERNOON WITH NUMEROUS
                    SHOWERS AND THUNDERSTORMS.
MAX TEMPERATURE.....77 TO 83.
MIN HUMIDITY........30 PERCENT.
WIND (EYE LEVEL)....UPSLOPE SOUTH AROUND 4 MPH THROUGH 1330 OR 1400
                    ...BECOMING UPCANYON ALONG BIG CREEK EAST 6 TO 12
                    MPH THIS AFTERNOON. GUSTY AND ERRATIC NEAR STORMS.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......7000 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
VENTILATION INDEX...700 EXCELLENT.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS AND THUNDERSTORMS LIKELY
                    UNTIL MIDNIGHT.
MIN TEMPERATURE.....45 TO 50.
MAX HUMIDITY........80 TO 85 PERCENT.
WIND (EYE LEVEL)....DOWNSLOPE SOUTH AROUND 4 MPH AFTER 2100...BECOMING
                    DOWNCANYON WEST 4 TO 6 MPH.
HAINES INDEX........3 VERY LOW.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 5 MPH.
VENTILATION INDEX...15 POOR.

.THURSDAY...

SKY/WEATHER.........MOSTLY SUNNY. A CHANCE OF SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
MAX TEMPERATURE.....80 TO 85.
MIN HUMIDITY........25 TO 28 PERCENT.
WIND (EYE LEVEL)....UPSLOPE NORTH TO NORTHWEST 4 TO 7 MPH.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......10000 FT AGL.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
VENTILATION INDEX...1500 EXCELLENT.

$$
FORECASTER...DECKER
REQUESTED BY...DISPATCH
TYPE OF REQUEST...WILDFIRE
.TAG 20100728.COPPE.01/BOI