FNUS75 KBOI 040237 CCA
FWSBOI

SPOT FORECAST FOR GRIZZLY...CORRECTED
NATIONAL WEATHER SERVICE BOISE ID
831 PM MDT FRI AUG 3 2012

FORECAST IS BASED ON REQUEST TIME OF 2011 MDT ON AUGUST 03.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...MODERATE HUMIDITY RECOVERY TONIGHT THEN LIGHT WINDS SATURDAY...
...HOT AND DRIER WITH HAINES 5 MODERATE SUNDAY AFTERNOON...
...ISOLATED THUNDERSTORMS WITH ERRATIC WINDS POSSIBLY EARLY MONDAY...

.DISCUSSION...
WEAKENING PRESSURE GRADIENT WILL ALLOW LIGHT DIURNAL DOWNSLOPE
WINDS TO DEVELOP BY MIDNIGHT WHILE TRANSPORT WINDS TURN FROM
NORTHERLY TO NORTHEASTERLY FOR TONIGHT. A WARMING AND DRYING
TREND IS ON TAP THIS WEEKEND DUE TO A BUILDING WARM UPPER LEVEL
RIDGE AND SURFACE THERMAL TROUGH. OUTLOOK...EXPECT A HAINES 5
MODERATE SUNDAY AFTERNOON AND EVENING. AN UPPER LEVEL DISTURBANCE
IS EXPECTED ACROSS THE FIRE LATE SUNDAY NIGHT OR EARLY MONDAY FOR
A SLIGHT CHANCE OF MORNING THUNDERSTORMS.

.TONIGHT...

SKY/WEATHER.........CLEAR.
MIN TEMPERATURE.....50.
MAX HUMIDITY........45 PERCENT.
WIND - EYE LEVEL....NORTH 3 TO 6 MPH.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......700 FT AGL.
TRANSPORT WIND......NORTHEAST AROUND 10 MPH.
VENTILATION INDEX...70 POOR.

.SATURDAY...

SKY/WEATHER.........SUNNY.
MAX TEMPERATURE.....87 TO 89.
MIN HUMIDITY........13 TO 15 PERCENT.
WIND - EYE LEVEL....SOUTHEAST 2 TO 5 MPH...CORRECTED.
HAINES INDEX........4 LOW.
MIXING HEIGHT.......5500 FT AGL.
TRANSPORT WIND......SOUTH AROUND 7 MPH.
VENTILATION INDEX...770 EXCELLENT.

$$
FORECASTER...MILLS
REQUESTED BY...PAYETTE NATIONAL FOREST
TYPE OF REQUEST...WILDFIRE
.TAG 20120803.GRIZZ.02/BOI