FNUS75 KBYZ 151818
FWSBYZ

SPOT FORECAST FOR WOOD ROCK RX...FOREST SERVICE
NATIONAL WEATHER SERVICE BILLINGS MT
1218 PM MDT TUE MAY 15 2012

FORECAST IS BASED ON IGNITION TIME OF 1215 MDT ON MAY 15.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...LOW RELATIVE HUMIDITIES THROUGH WEDNESDAY...

.DISCUSSION...
WEAK HIGH PRESSURE AND A VERY DRY AIRMASS WILL BRING UNSEASONABLY
WARM WEATHER WITH VERY LOW RELATIVE HUMIDITIES TO THE BURN SITE
THROUGH TONIGHT. TEMPERATURES WILL TOP OUT IN THE 60S THIS AFTERNOON
WITH RELATIVE HUMIDITIES IN THE SINGLE DIGITS. RELATIVE HUMIDITIES WILL
RECOVER INTO ONLY THE TEENS TONIGHT. A RAIN SHOWER WILL BE POSSIBLE
TONIGHT DUE TO A WEAK TROUGH OF LOW PRESSURE. WINDS WILL BE SOUTHERLY
AND NOT VERY STRONG THROUGH TONIGHT. THERE WILL BE A LOW CHANCE OF RAIN
SHOWERS ON WEDNESDAY WITH AFTERNOON THUNDERSTORMS. SINCE THE LOW LEVELS
WILL REMAIN DRY...ANY THUNDERSTORMS WILL HAVE THE POTENTIAL TO PRODUCE
GUSTY WINDS. RELATIVE HUMIDITIES WILL BE IN THE TEENS.

.REST OF TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....63-68.
MIN HUMIDITY........4-9 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTH WINDS 5 TO 15 MPH.
 RIDGETOP...........SOUTH 5 TO 15 MPH.
MIXING HEIGHT.......10300 FT AGL.
MIXING WINDS........SOUTHWEST 5 TO 15 MPH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY WITH ISOLATED RAIN SHOWERS.
CWR.................8 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MIN TEMPERATURE.....50-55.
MAX HUMIDITY........14-19 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTH WINDS 5 TO 10 MPH.
 RIDGETOP...........SOUTHWEST 5 TO 10 MPH.
MIXING HEIGHT.......300 FT AGL.
MIXING WINDS........SOUTHWEST 5 TO 10 MPH.

.WEDNESDAY...

SKY/WEATHER.........PARTLY SUNNY. ISOLATED RAIN SHOWERS IN THE
                    MORNING...THEN SCATTERED SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
CWR.................15 PERCENT.
LAL.................3...9 TO 15 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....64-69.
MIN HUMIDITY........14-19 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......WEST WINDS 5 TO 15 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
 RIDGETOP...........WEST 5 TO 15 MPH.
MIXING HEIGHT.......7800 FT AGL.
MIXING WINDS........WEST 5 TO 15 MPH.

$$
FORECASTER...ARTHUR
REQUESTED BY...RXB2
TYPE OF REQUEST...PRESCRIBED
.TAG 20120515.WOODR.02/BYZ