FNUS75 KBOI 071925
FWSBOI

SPOT FORECAST FOR BIRCH CREEK RX...VALE BLM
NATIONAL WEATHER SERVICE BOISE ID
125 PM MDT THU MAY 7 2009

FORECAST IS BASED ON IGNITION TIME OF 1500 MDT ON MAY 07.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.


...DRY CONDITIONS NEXT FEW DAYS...
...STRONG WINDS ABOVE THE OWYHEE RIVER CANYON REMAINING STRONG
   THIS EVENING...


.DISCUSSION...
A STRONG JET STREAM WILL CONTINUE TO MOVE OVER THE BLM LANDS THIS EVENING
AND WILL FINALLY MOVE OUT OF THE AREA BY MIDNIGHT. THIS WILL KEEP STRONG AND
GUSTY WINDS THROUGH THIS EVENING ABOVE THE CANYON WALLS AROUND THE
BURN AREA. A SURFACE HIGH SETS UP OVER THE AREA FOR FRIDAY BRINGING
LIGHT WINDS TO ALL AREAS. OTHERWISE DRY CONDITIONS ARE EXPECTED
THROUGH THE WEEKEND.


.REST OF TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....AROUND 65.
MIN HUMIDITY........AROUND 40 PERCENT.
WIND - EYE LEVEL....UPSLOPE 2 TO 5 MPH WITH SOME GUSTS TO 8 MPH. GUSTS TO 25
                    MPH OVER THE CANYON WALLS.
HAINES INDEX........2 VERY LOW.
MIXING HEIGHT.......8000 FT AGL.
TRANSPORT WIND......WEST AROUND 20 MPH.
VENTILATION INDEX...1600 EXCELLENT.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
MIN TEMPERATURE.....35 TO 40.
MAX HUMIDITY........OVER 75 PERCENT.
WIND - EYE LEVEL....DOWN DRAINAGE WINDS LESS THAN 5 MPH AFTER MIDNIGHT.
HAINES INDEX........2 VERY LOW.
MIXING HEIGHT.......900 FT AGL.
TRANSPORT WIND......NORTHWEST AROUND 10 MPH.
VENTILATION INDEX...90 POOR.

.FRIDAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....AROUND 65.
MIN HUMIDITY........19 TO 24 PERCENT.
WIND - EYE LEVEL....DOWN DRAINAGE WINDS LESS THAN 5 MPH IN THE MORNING SHIFTING
                    UPSLOPE 2 TO 4 MPH BY NOON.
HAINES INDEX........2 VERY LOW.
MIXING HEIGHT.......7500 FT AGL.
TRANSPORT WIND......NORTHWEST AROUND 5 MPH.
VENTILATION INDEX...375 FAIR.

$$
FORECASTER...REDMAN
REQUESTED BY...PAT SKAGGS
TYPE OF REQUEST...PRESCRIBED
.TAG 20090507.BIRCH.01/BOI