FNUS75 KBYZ 251432
FWSBYZ

SPOT FORECAST FOR DEVIL S CANYON RX...U.S. FOREST SERVICE
NATIONAL WEATHER SERVICE BILLINGS MT
832 AM MDT SAT MAY 25 2013

FORECAST IS BASED ON IGNITION TIME OF 1200 MDT ON MAY 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

AN UNSTABLE SOUTHWEST FLOW WILL PERSIST OVER THE BURN SITE
TODAY THROUGH SUNDAY. THIS FLOW WILL BRING ISOLATED TO SCATTERED
SHOWERS AND THUNDERSTORMS TO THE AREA EACH DAY. SOUTHEAST WINDS
AT 5 TO 15 MPH EARLY TODAY WILL BECOME SOUTH AT 5 TO 10 MPH.
THE WINDS WILL SHIFT TO THE NORTHWEST AT 5 TO 10 MPH OVERNIGHT
AS A COLD FRONT CROSSES THE SITE. NORTHWEST WINDS SUNDAY MORNING
WILL BECOME UPSLOPE/UP-VALLEY IN THE AFTERNOON.

.REST OF TODAY...

SKY/WEATHER.........MOSTLY SUNNY. ISOLATED SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
CWR.................15 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....53-58.
MIN HUMIDITY........16-21 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHEAST WINDS 5 TO 15 MPH EARLY...BECOMING
                    SOUTH 5 TO 10 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
 RIDGETOP...........SOUTH 10 TO 20 MPH.
MIXING HEIGHT.......8200 FT AGL.
MIXING WINDS........SOUTH 5 TO 15 MPH.
HAINES INDEX........5.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MIN TEMPERATURE.....41-46.
MAX HUMIDITY........58-63 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTH WINDS 5 TO 10 MPH IN THE EVENING
                    SHIFTING TO THE NORTHWEST OVERNIGHT.
 RIDGETOP...........SOUTHWEST 5 TO 15 MPH.
MIXING HEIGHT.......1200 FT AGL.
MIXING WINDS........LIGHT WINDS.
HAINES INDEX........5.

.SUNDAY...

SKY/WEATHER.........PARTLY SUNNY. SCATTERED SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
CWR.................24 PERCENT.
LAL.................3...9 TO 15 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....55-60.
MIN HUMIDITY........33-38 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTHWEST WINDS 5 TO 10 MPH IN THE MORNING
                    BECOMING UPSLOPE/UP-VALLEY 5 TO 10 MPH
                    IN THE AFTERNOON. GUSTY AND ERRATIC WINDS
                    EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON.
 RIDGETOP...........SOUTH 15 TO 25 MPH.
MIXING HEIGHT.......9300 FT AGL.
MIXING WINDS........SOUTH 15 TO 25 MPH.
HAINES INDEX........5.

$$
FORECASTER...ARTHUR
REQUESTED BY...MATTHEW PRENTISS
TYPE OF REQUEST...PRESCRIBED
.TAG 20130525.DEVIL.01/BYZ