FNUS75 KBYZ 240158
FWSBYZ

SPOT FORECAST FOR BORDER FIRE...BLM
NATIONAL WEATHER SERVICE BILLINGS MT
758 PM MDT SUN SEP 23 2012

FORECAST IS BASED ON REQUEST TIME OF 1915 MDT ON SEPTEMBER 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A WEAKENING RIDGE OF HIGH PRESSURE WILL BE OVER THE FIRE THROUGH
TUESDAY...WHILE A LOW PRESSURE SYSTEM MOVES SOUTHEAST INTO
COLORADO. IT WILL BE WARM BOTH MONDAY AND TUESDAY WITH RELATIVE
HUMIDITIES IN THE TEENS. EACH NIGHT WILL BE WARM AS WELL WITH
LOWS IN THE 50S. RELATIVE HUMIDITIES WILL MAKE A POOR RECOVERY TO
AROUND 30 PERCENT MONDAY NIGHT. SOUTHERLY WINDS WILL PERSIST INTO
MONDAY AND TURN NORTH MONDAY AFTERNOON. FOR MONDAY NIGHT...WINDS
WILL BE NORTHEAST 5 TO 15 MPH IN THE EVENING BEFORE BECOMING LIGHT
OVERNIGHT. LIGHT WINDS TUESDAY MORNING WILL BECOMING SOUTHEAST 5
TO 10 MPH IN THE AFTERNOON. NOTE THAT A PERIOD OF SOUTHEAST WINDS
AT 10 TO 20 MPH WILL BE POSSIBLE AT RIDGETOP TONIGHT.

.REST OF TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MIN TEMPERATURE.....50-55.
MAX HUMIDITY........44-49 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHEAST WINDS 5 TO 10 MPH...BECOMING SOUTH
                    OVERNIGHT.
 RIDGETOP...........SOUTHEAST 10 TO 20 MPH...BECOMING SOUTHWEST
                    5 TO 15 MPH OVERNIGHT.
MIXING HEIGHT.......980 FT AGL.
MIXING WINDS........SOUTH 5 TO 15 MPH.
HAINES INDEX........3.

.MONDAY...

SKY/WEATHER.........PARTLY SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....76-81.
MIN HUMIDITY........14-19 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHWEST WINDS 5 TO 10 MPH IN THE MORNING
                    SHIFTING TO THE NORTH IN THE AFTERNOON.
 RIDGETOP...........LIGHT WINDS BECOMING NORTH 5 TO 15 MPH IN
                    THE AFTERNOON.
MIXING HEIGHT.......8200 FT AGL.
MIXING WINDS........NORTH 5 TO 10 MPH.
HAINES INDEX........4.

.MONDAY NIGHT...

SKY/WEATHER.........MOSTLY CLOUDY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MIN TEMPERATURE.....54-59.
MAX HUMIDITY........28-33 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTHEAST WINDS 5 TO 15 MPH IN THE EVENING
                    BECOMING LIGHT OVERNIGHT.
 RIDGETOP...........NORTHEAST 10 TO 15 MPH.
MIXING HEIGHT.......2200 FT AGL.
MIXING WINDS........NORTHEAST 5 TO 10 MPH.
HAINES INDEX........3.

.TUESDAY...

SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....73-78.
MIN HUMIDITY........13-18 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......LIGHT WINDS IN THE MORNING BECOMING SOUTHEAST 5
                    TO 10 MPH IN THE AFTERNOON.
 RIDGETOP...........EAST 5 TO 15 MPH.
MIXING HEIGHT.......8000 FT AGL.
MIXING WINDS........EAST 5 TO 10 MPH.
HAINES INDEX........4.

$$
FORECASTER...ARTHUR
REQUESTED BY...PATRICK KIERAN
TYPE OF REQUEST...WILDFIRE
.TAG 20120923.BORDE.01/BYZ