FNUS75 KBYZ 231704
FWSBYZ

SPOT FORECAST FOR GOOD LUCK WUI...CROW FIRE & AVIATION
NATIONAL WEATHER SERVICE BILLINGS MT
1104 AM MDT MON APR 23 2012

FORECAST IS BASED ON IGNITION TIME OF 1230 MDT ON APRIL 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
...THUNDERSTORMS WITH STRONG WIND GUSTS POSSIBLE EACH AFTERNOON...
...COLD FRONTAL PASSAGE TUESDAY AFTERNOON WITH WIND SHIFT...

A RIDGE OF HIGH PRESSURE WILL BRING VERY WARM TEMPERATURES TO THE SITE
TODAY WITH READINGS IN THE MID 70S TO LOWER 80S. INCREASING CLOUD COVER WILL
BRING SLIGHTLY COOLER WEATHER ON TUESDAY. RELATIVE HUMIDITY VALUES WILL
BE IN THE TEENS THIS AFTERNOON...AND IN THE LOWER TO MID 20S ON
TUESDAY AFTERNOON. WINDS WILL BE SOUTHWEST 5 TO 15 MPH TODAY. SOUTHWEST
WINDS 5 TO 15 MPH EARLY THIS EVENING...WILL BECOME DOWNSLOPE/DOWN-VALLEY
AROUND 5 MPH BY LATE EVENING. ON TUESDAY...SOUTHWEST WINDS 5 TO 15 MPH
WILL BECOME NORTH IN THE AFTERNOON DUE TO A COLD FRONTAL PASSAGE. GUSTY
AND ERRATIC WINDS WILL BE POSSIBLE NEAR THUNDERSTORMS EACH AFTERNOON AND
THIS EVENING.

.REST OF TODAY...

SKY/WEATHER.........MOSTLY SUNNY. ISOLATED THUNDERSTORMS IN THE
                    AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE GUSTY
                    WINDS IN THE AFTERNOON.
CWR.................9 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....76-81.
MIN HUMIDITY........13-18 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHWEST WINDS 5 TO 15 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
 RIDGETOP...........WEST 10 TO 20 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED THUNDERSTORMS IN THE
                    EVENING...THEN ISOLATED RAIN SHOWERS OVERNIGHT.
                    SOME THUNDERSTORMS MAY PRODUCE GUSTY WINDS IN
                    THE EVENING.
CWR.................12 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MIN TEMPERATURE.....52-57.
MAX HUMIDITY........61-66 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHWEST WINDS 5 TO 15 MPH EARLY...
                    BECOMING DOWNSLOPE/DOWN-VALLEY AROUND 5 MPH BY
                    LATE EVENING. GUSTY AND ERRATIC WINDS EXPECTED
                    NEAR THUNDERSTORMS IN THE EVENING.
 RIDGETOP...........WEST 5 TO 15 MPH.

.TUESDAY...

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.....73-78.
MIN HUMIDITY........21-26 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHWEST WINDS 5 TO 15 MPH...BECOMING NORTH
                    IN THE AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED
                    NEAR THUNDERSTORMS IN THE AFTERNOON.
 RIDGETOP...........WEST 10 TO 20 MPH.

$$
FORECASTER...ARTHUR
REQUESTED BY...BRYCE ROGERS
TYPE OF REQUEST...PRESCRIBED
.TAG 20120423.GOODL.01/BYZ