FNUS75 KBYZ 260446
FWSBYZ

SPOT FORECAST FOR BURGESS IA...USFS
NATIONAL WEATHER SERVICE BILLINGS MT
1046 PM MDT THU AUG 25 2011

FORECAST IS BASED ON REQUEST TIME OF 2211 MDT ON AUGUST 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...STRONG COLD FRONTAL PASSAGE SATURDAY AFTERNOON AND EVENING...


.DISCUSSION...
A BAND OF THUNDERSTORMS WERE MOVING THROUGH THE FIRE SITE AT THE
MOMENT. THESE STORMS WERE PRODUCING STRONG AND GUSTY WINDS AS THEY
MOVE THROUGH. THE TREND HAS BEEN FOR THE STORMS TO WEAKEN AS THE
MAIN PUSH OF LIGHTNING DRIFTS TO THE SOUTH. FRIDAY SHOULD BE LESS
ACTIVE AS MOST OF THE STORMS GET DEFLECTED NORTH. A MORE ACTIVE
THUNDERSTORM DAY LOOKS TO BE SATURDAY. THE STORMS WILL BE A MIX OF
WET AND DRY. WINDS WILL WANT TO BE SOUTHWEST MOST OF THE TIME BUT
WILL BECOME ERRATIC DURING THE LATE MORNING AND EARLY AFTERNOON AS
UPCANYON INFLUENCES TRY TO TAKE HOLD. HUMIDITIES WILL FALL INTO
THE 20S DURING THE LATE MORNING INTO EARLY AFTERNOON WITH ABOVE
NORMAL TEMPERATURES CONTINUING. A STRONG COLD FRONT WILL MOVE
THROUGH SATURDAY AFTERNOON WITH GUSTY NORTHWEST WINDS.

.REST OF TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED THUNDERSTORMS BEFORE
                    MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE GUSTY
                    WINDS THROUGH MIDNIGHT.
CWR.................15 PERCENT.
LAL.................3...9 TO 15 STRIKES/15 MIN/CELL.
MIN TEMPERATURE.....42-47.
MAX HUMIDITY........75-80 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHWEST WINDS 4 TO 12 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS.
 RIDGETOP...........WEST 5 TO 15 MPH.

.FRIDAY...

SKY/WEATHER.........MOSTLY SUNNY. ISOLATED SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
CWR.................9 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....73-78.
MIN HUMIDITY........23-28 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHWEST WINDS 4 TO 12 MPH IN THE MORNING. WINDS
                    BECOMING ERRATIC IN THE AFTERNOON WITH A LEAN TOWARD
                    NORTHWEST WINDS. GUSTY AND ERRATIC WINDS EXPECTED
                    NEAR THUNDERSTORMS IN THE AFTERNOON.
 RIDGETOP...........SOUTHWEST 10 TO 20 MPH.

.FRIDAY NIGHT...

SKY/WEATHER.........PARTLY CLOUDY WITH ISOLATED SHOWERS AND
                    THUNDERSTORMS.
CWR.................10 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MIN TEMPERATURE.....44-49.
MAX HUMIDITY........70-75 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHWEST WINDS 4 TO 12 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS.
 RIDGETOP...........WEST 10 TO 20 MPH.

.SATURDAY...

SKY/WEATHER.........MOSTLY SUNNY. ISOLATED SHOWERS AND
                    THUNDERSTORMS IN THE MORNING...THEN SCATTERED
                    SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
CWR.................13 PERCENT.
LAL.................3...9 TO 15 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....73-78.
MIN HUMIDITY........25-30 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHWEST WINDS 4 TO 12 MPH IN THE MORNING. WINDS
                    BECOMING ERRATIC IN THE AFTERNOON AND THEN BECOMING
                    NORTHWEST 8 TO 16 MPH BY LATE AFTERNOON. GUSTY AND
                    ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
 RIDGETOP...........WEST 10 TO 20 MPH...BECOMING NORTHWEST BY LATE
                    AFTERNOON.

$$
FORECASTER...HUMPHREY
REQUESTED BY...JON WARDER
TYPE OF REQUEST...WILDFIRE
.TAG 20110825.BURGE.01/BYZ