FNUS75 KBYZ 132043
FWSBYZ

SPOT FORECAST FOR DONAHEY...MILES CITY INTERAGENCY DISPATCH CENTER
NATIONAL WEATHER SERVICE BILLINGS MT
243 PM MDT THU SEP 13 2012

FORECAST IS BASED ON REQUEST TIME OF 1420 MDT ON SEPTEMBER 13.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT THIS EVENING...

.DISCUSSION...
A WEAK COLD FRONT WILL BRING GUSTY NORTHWEST WINDS ALONG WITH
LOW HUMIDITY TO THE FIRE THROUGH 8 PM MDT THIS EVENING.
HUMIDITIES WILL RECOVER INTO THE UPPER 40S TONIGHT. BUILDING
HIGH PRESSURE ALOFT WILL BRING WARM AND VERY DRY
CONDITIONS TO THE FIRE FRIDAY AND SATURDAY. IT WILL BECOME
BREEZY FRIDAY AFTERNOON WITH SOUTHEAST WINDS 10 TO 20 MPH.
HUMIDITIES WILL RECOVER INTO ONLY THE 20S FRIDAY NIGHT.
A DRY COLD FRONT WILL MOVE ACROSS THE FIRE SATURDAY AFTERNOON
SHIFTING WEST WINDS TO THE NORTH.

.TONIGHT...

SKY/WEATHER.........CLEAR.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MIN TEMPERATURE.....47-52.
MAX HUMIDITY........45-50 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTHWEST WINDS 5 TO 15 MPH IN THE EVENING
                    SHIFTING TO THE SOUTH 5 TO 10 MPH
                    OVERNIGHT.
 RIDGETOP...........NORTHWEST 15 TO 25 MPH.
HAINES INDEX........4.

.FRIDAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....80-85.
MIN HUMIDITY........11-16 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTH WINDS 5 TO 10 MPH IN THE MORNING
                    INCREASING TO SOUTHEAST 10 TO 20 MPH IN THE
                    AFTERNOON.
 RIDGETOP...........SOUTH 5 TO 15 MPH.
HAINES INDEX........5.

.FRIDAY NIGHT...

SKY/WEATHER.........CLEAR.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MIN TEMPERATURE.....53-58.
MAX HUMIDITY........25-30 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHEAST WINDS 5 TO 15 MPH...BECOMING
                    SOUTHWEST BY MORNING.
 RIDGETOP...........SOUTHWEST 20 TO 35 MPH.
HAINES INDEX........5.

.SATURDAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....84-89.
MIN HUMIDITY........7-12 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......WEST WINDS 5 TO 10 MPH...BECOMING NORTH LATE.
 RIDGETOP...........WEST 5 TO 15 MPH.
HAINES INDEX........6.

$$
FORECASTER...ARTHUR
REQUESTED BY...DONAHEY IC
TYPE OF REQUEST...WILDFIRE
.TAG 20120913.DONAH.01/BYZ