FNUS75 KBYZ 202037
FWSBYZ

SPOT FORECAST FOR CAT CAMP...BLM
NATIONAL WEATHER SERVICE BILLINGS MT
237 PM MDT SAT JUN 20 2009

FORECAST IS BASED ON IGNITION TIME OF 1440 MDT ON JUNE 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A STRONG WEATHER SYSTEM AND COLD FRONT WILL MOVE THROUGH THE
REGION INTO TONIGHT...BRINGING THE RISK FOR THUNDERSTORMS
THROUGHOUT THE NIGHT. BRIEF HEAVY RAIN AND SMALL HAIL WILL
ACCOMPANY THE STRONGEST STORMS THIS EVENING.

.REST OF TODAY...

SKY/WEATHER.........INCREASING CLOUDS. ISOLATED THUNDERSTORMS AFTER
                    4 PM. ANY STORMS WOULD LIKELY PRODUCE BRIEF
                    HEAVY RAIN AND SMALL HAIL.
CWR.................20 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....85-88.
MIN HUMIDITY........27-31 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......LIGHT AND VARIABLE WINDS...BUT GUSTY
                    AND ERRATIC NEAR STORMS.
 RIDGETOP...........SOUTHEAST WINDS 5 TO 10 MPH.
MIXING HEIGHT.......9500 FT AGL.
MIXING WINDS........SOUTH 10 TO 20 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SHOWERS AND THUNDERSTORMS.
                    SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL AND
                    SMALL HAIL THIS EVENING.
CWR.................30 PERCENT.
LAL.................3...9 TO 15 STRIKES/15 MIN/CELL.
MIN TEMPERATURE.....53-58.
MAX HUMIDITY........86-91 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......LIGHT AND VARIABLE WINDS...BECOMING NORTHWEST
                    AFTER MIDNIGHT AND INCREASING TO 15 TO 20 MPH.
 RIDGETOP...........SOUTH 5 TO 15 MPH.
MIXING HEIGHT.......300 FT AGL.
MIXING WINDS........WEST 15 TO 30 MPH.

$$
FORECASTER...FRIEDERS
REQUESTED BY...MATT
TYPE OF REQUEST...PRESCRIBED
.TAG 20090620.CATCA.01/BYZ