FNUS75 KBOI 201550
FWSBOI

SPOT FORECAST FOR THUNDER CITY...PAYETTE NF
NATIONAL WEATHER SERVICE BOISE ID
950 AM MDT SAT JUL 20 2013

FORECAST IS BASED ON REQUEST TIME OF 0909 MDT ON JULY 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...DRY AND UNSTABLE CONDITIONS THROUGH THE WEEKEND...
...INCREASED WIND ON MONDAY AFTERNOON ESPECIALLY AT HIGHER ELEVATIONS...

.DISCUSSION....NEARBY FIRE LOOKOUTS INDICATED POOR HUMIDITY RECOVERIES
THIS MORNING IN THE TEENS. THIS DRY TREND WILL CONTINUE AS A HIGH PRESSURE
RIDGE OVER THE GREAT BASIN STRENGTHENS AS IT RETROGRADES TOWARD THE PACIFIC
NORTHWEST. ON MONDAY A DRY UPPER LEVEL THROUGH IN NORTHERN IDAHO MAY BRING
INCREASED WINDS TO THE THUNDER CITY FIRE AS A DRY COLD FRONT MOVES THROUGH
DURING THE AFTERNOON HOURS. UNTIL MONDAY THE LOCAL WINDS WILL BE TERRAIN
DRIVEN IN SUGAR CREEK DRAINAGE WITH GUSTS TO 15 MILES PER HOUR OVER THE RIDGES.

.REST OF TODAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....6000 TO 8000 FEET: 70 TO 83.
                    4500 TO 6000 FEET: 83 TO 87.

MIN HUMIDITY........6000 TO 8000 FEET: 16 TO 20 PERCENT.
                    4500 TO 6000 FEET  12 TO 15 PERCENT.
WIND - EYE LEVEL....UPSLOPE THIS MORNING 3 TO 5 MPH BECOMING UPVALLEY ALONG
                    SUGAR CREEK AFTER 1500 HOURS 4 TO 8 MPH WITH GUSTS TO 15 MPH.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......9500 FT AGL.
TRANSPORT WIND......NORTHWEST AROUND 10 MPH.
VENTILATION INDEX...950 EXCELLENT.

.TONIGHT...

SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....48 TO 53.
MAX HUMIDITY........6000 TO 8000 FEET: 25 TO 35 PERCENT.
                    4500 TO 6000 FEET: 18 TO 24 PERCENT.
WIND - EYE LEVEL....UP VALLEY 3 TO 8 MPH WITH GUSTS UP TO 15 MPH IN THE
                    EVENING. BECOMING DOWN VALLEY AFTER 2100 HOURS 2 TO 5 MPH.
HAINES INDEX........5 MODERATE.
MIXING HEIGHT.......900 FT AGL.
TRANSPORT WIND......NORTH TO NORTHEAST AROUND 5 MPH.
VENTILATION INDEX...50 POOR.

.SUNDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....71 TO 83.
MIN HUMIDITY........12 TO 17 PERCENT.
WIND - EYE LEVEL....WEST 3 TO 9 MPH. GUSTS UP TO 18 MPH IN THE
                    AFTERNOON.
HAINES INDEX........5 MODERATE.
MIXING HEIGHT.......9000 FT AGL.
TRANSPORT WIND......WEST AROUND 10 MPH.
VENTILATION INDEX...900 EXCELLENT.

$$
FORECASTER...DECKER
REQUESTED BY...FRANCIS RUSSO
TYPE OF REQUEST...WILDFIRE
.TAG 20130720.THUND.01/BOI