FNUS75 KBYZ 141448
FWSBYZ

SPOT FORECAST FOR PERRY...MILES CITY DISPATCH CENTER
NATIONAL WEATHER SERVICE BILLINGS MT
848 AM MDT SUN AUG 14 2011

FORECAST IS BASED ON REQUEST TIME OF 0830 MDT ON AUGUST 14.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
...UNSTABLE TODAY WITH A QUICK WARMUP AFTER CLOUDS DEPART AROUND
NOON...

CLOUDS OVER THE FIRE THIS MORNING WILL ERODE AROUND NOON ALLOWING
FOR A WARM AFTERNOON WITH TEMPERATURES IN THE MID 90S. AROUND
1300 EXPECT A WEAK INVERSION TO BREAK WITH HUMIDITY FALLING FROM
35 PERCENT TO 20 PERCENT IN ONE HOUR. THE AIRMASS IS UNSTABLE AND
THE HAINES INDEX WILL BE A 5 THIS AFTERNOON. WINDS WILL BECOME
SOUTHWESTERLY IN RESPONSE TO DEVELOPING SURFACE LOW PRESSURE OVER
EASTERN MONTANA. A BRIEF SPRINKLE MAY COME FROM THE CLOUDS THIS
MORNING BUT THE MAIN RISK OF THUNDERSTORMS COMES TOWARDS DARK
TONIGHT. MONDAY IS STILL WARM WITH A BIGGER THUNDERSTORM THREAT.
BORSUM

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....94-98.
MIN HUMIDITY........13-18 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTH WINDS 5 TO 10 MPH TRENDING SOUTHWEST.
 RIDGETOP...........SOUTHWEST 10 TO 20 MPH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY WITH ISOLATED SHOWERS AND
                    THUNDERSTORMS.
CWR.................9 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MIN TEMPERATURE.....56-61.
MAX HUMIDITY........77-82 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......WEST WINDS 5 TO 10 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS.
 RIDGETOP...........WEST 5 TO 15 MPH.

.MONDAY...

SKY/WEATHER.........PARTLY SUNNY. ISOLATED SHOWERS AND
                    THUNDERSTORMS IN THE MORNING...THEN SCATTERED
                    SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
CWR.................14 PERCENT.
LAL.................3...9 TO 15 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....92-97.
MIN HUMIDITY........17-22 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHWEST WINDS 5 TO 10 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS.
 RIDGETOP...........SOUTH 5 TO 15 MPH.

$$
FORECASTER...BORSUM
REQUESTED BY...KELSEY ANDERSON
TYPE OF REQUEST...WILDFIRE
.TAG 20110814.PERRY.01/BYZ