FNUS75 KBOI 152324
FWSBOI

SPOT FORECAST FOR THUNDER CITY FIRE...USFS
NATIONAL WEATHER SERVICE BOISE ID
524 PM MDT THU AUG 15 2013

FORECAST IS BASED ON REQUEST TIME OF 1642 MDT ON AUGUST 15.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT UNTIL 6 PM MDT FRIDAY...

.DISCUSSION...
THE UPPER LEVEL RIDGE WILL MAINTAIN HOT DRY WEATHER OVER THE BURN AREA THROUGH
FRIDAY. SOUTHWEST FLOW ALOFT WILL SURFACE DURING THE DAY AND PHASE WITH THE
NORMAL UP VALLEY/UPSLOPE FLOW GIVING STRONGEST WINDS IN THE AFTERNOON. WINDS
TONIGHT WILL DIMINISH AFTER SUNSET WITH DOWNSLOPE/DOWN VALLEY FLOW DEVELOPING
IN THE DRAINAGES BUT SOUTHWEST TO WEST WINDS CONTINUING ACROSS THE RIDGES. OVER
THE WEEKEND EXPECT CONTINUED DRY CONDITIONS WITH TEMPERATURES COOLING A COUPLE
OF DEGREES.

.TONIGHT...

SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....49 TO 54.
MAX HUMIDITY........30 TO 43 PERCENT.
WIND - EYE LEVEL....WEST 3 TO 6 MPH RIDGE TOPS AND UPPER SLOPES. GUSTS UP TO
                    14 MPH IN THE EVENING. DRAINAGES WILL SEE DOWNSLOPE/DOWN
                    VALLEY WINDS 2 TO 5 MPH.
HAINES INDEX........6 HIGH.
MIXING HEIGHT.......1000 FT AGL.
TRANSPORT WIND......NORTH AROUND 5 MPH.
VENTILATION INDEX...50 POOR.

.FRIDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....71 TO 82.
MIN HUMIDITY........11 TO 16 PERCENT.
WIND - EYE LEVEL....SOUTHWEST TO WEST 3 TO 5 MPH IN THE
                    MORNING...INCREASING TO 11 TO 15 MPH WITH GUSTS
                    TO 25 MPH IN THE AFTERNOON.
HAINES INDEX........6 HIGH.
MIXING HEIGHT.......11500 FT AGL.
TRANSPORT WIND......SOUTHWEST AROUND 20 MPH.
VENTILATION INDEX...2300 EXCELLENT.

.FRIDAY NIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....48 TO 53.
MAX HUMIDITY........46 TO 59 PERCENT.
WIND - EYE LEVEL....SOUTHWEST 7 TO 13 MPH. GUSTS UP TO 22 MPH IN
                    THE EVENING.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WIND......NORTH AROUND 0 MPH.
VENTILATION INDEX...0 POOR.

$$
FORECASTER...JT
REQUESTED BY...KIM SOPER
TYPE OF REQUEST...WILDFIRE
.TAG 20130815.THUND.01/BOI