FNUS75 KPIH 041254
FWSPIH

SPOT FORECAST FOR HALSTEAD...USFS
NATIONAL WEATHER SERVICE POCATELLO ID
654 AM MDT THU OCT 4 2012

FORECAST IS BASED ON REQUEST TIME OF 1933 MDT ON OCTOBER 03.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A LOW PRESSURE TROUGH WILL SLIDING SOUTHEAST THROUGH
MONTANA TODAY LEAVING COLD AND DRY AIR OVER THE HALSTEAD FIRE
AREA. WINDS ARE EXPECTED SHIFT FROM SOUTHWEST TO NORTH THROUGH THE
DAY AND LATER TONIGHT AS THE TROUGH MOVES SOUTHEAST.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
MAX TEMPERATURE.....MAX 54 TO 59 BELOW 6700 FT MSL
x09x09    MAX 42 TO 46 NEAR 9000 FT MSL.
MIN HUMIDITY........MIN 18-22 PERCENT BELOW 6700 FT MSL.
x09x09    MIN 23 TO 27 NEAR 9000 FT MSL.
WIND (20 FT)........MID AND LOWER SLOPES SOUTHWEST WINDS 6 TO 8 MPH
x09x09    SHIFTING TO THE WEST 6 TO 8 MPH GUST 15 MPH IN THE
                    AFTERNOON. RIDGE TOP WINDS WEST 5 TO 10 MPH GUST TO 20 MPH.
CWR.................0 PERCENT.
MIXING HEIGHT.......5200-6200 FT AGL.
MIXING WINDS........WEST AROUND 9 MPH.
HAINES INDEX........3.
LAL.................1.

.TONIGHT...

SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....9-15.
MAX HUMIDITY........LOWER DRAINAGES 68-78 PERCENT. RIDGE TOPS 45 TO 50 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 6 TO 10 MPH. LOWER DRAINAGES DECREASING TO
x09x09    1 TO 3 MPH BY MIDNIGHT.
CWR.................0 PERCENT.
MIXING HEIGHT.......300-1300 FT AGL.
MIXING WINDS........NORTH AROUND 9 MPH.
HAINES INDEX........2.
LAL.................1.

$$
FORECASTER...SURVICK
REQUESTED BY...CENTRAL IDAHO DISPATCH
TYPE OF REQUEST...WILDFIRE
.TAG 20121003.HALST.01/PIH