FNUS75 KBYZ 031737
FWSBYZ

SPOT FORECAST FOR PICKET PIN RX...BILLINGS DISPATCH CENTER
NATIONAL WEATHER SERVICE BILLINGS MT
1137 AM MDT TUE APR 3 2012

FORECAST IS BASED ON IGNITION TIME OF 1125 MDT ON APRIL 03.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH
WEDNESDAY EVENING BELOW 6000 FT...

.DISCUSSION...
WINDS AT THE BURN SITE WILL BECOME SOUTH-SOUTHWEST WITH SOME GUSTS
TO BETWEEN 15 AND 20 MPH THIS AFTERNOON. THERE MAY BE UPSLOPE...OR
EASTERLY AND EDDYING WINDS ON THE MIDDLE AND UPPER PORTIONS OF THE
RIDGE ON UNIT 2 OF THE PROJECT SITE. HOWEVER...IT IS POSSIBLE THAT
THEY WILL NOT BE AS PRONOUNCED AS THEY WERE WHEN OBSERVED ON MARCH
29TH 2012...AS THE WINDS TODAY MAY HAVE MORE OF A SOUTH COMPONENT.
EXPECT MINIMUM HUMIDITY NEAR 20 PERCENT TODAY...AND RECOVERY NEAR
65 PERCENT TONIGHT. ON WEDNESDAY...STRONGER SOUTHWEST WINDS WITH
GUSTS OVER 25 MPH WILL OCCUR. MORE PRONOUNCED EASTERLY...EDDYING
WINDS WILL LIKELY RESULT IN THE MIDDLE AND UPPER PORTIONS OF UNIT
2. HUMIDITY WILL ONCE AGAIN BE AROUND 20 PERCENT.

A DRY COLD FRONT WILL MOVE THROUGH THE SITE ON WEDNESDAY EVENING.
WINDS WILL SHIFT TO THE WEST-NORTHWEST...WITH SOME GUSTS TO 40 MPH
POSSIBLE. SCHULTZ/BT

.TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....55-60.
MIN HUMIDITY........19-24 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHEAST WINDS 3 TO 5 MPH WILL BECOME
                    SOUTH-SOUTHWEST AT 7 TO 12 MPH FOR THE
                    AFTERNOON. A FEW GUSTS TO 17 MPH. THE
                    MIDDLE AND TOP OF UNIT 2 ON THE PROJECT
                    SITE MAY HAVE UPSLOPE...EDDYING EASTERLY
                    WINDS OF 2 TO 5 MPH AT TIMES.
 RIDGETOP...........SOUTH-SOUTHWEST 10 TO 20 MPH.
MIXING HEIGHT.......6000 FT AGL.
MIXING WINDS........SOUTH-SOUTHWEST 10 TO 20 MPH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MIN TEMPERATURE.....33-38.
MAX HUMIDITY........64-69 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHWEST WINDS 7 TO 12 MPH.
 RIDGETOP...........SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......700 FT AGL.
MIXING WINDS........SOUTHWEST AROUND 10 MPH.

.WEDNESDAY...

SKY/WEATHER.........PARTLY SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....59-64.
MIN HUMIDITY........23-28 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHWEST WINDS 12 TO 17 MPH WITH GUSTS
                    TO 28 MPH. THE MIDDLE AND UPPER PORTIONS
                    OF THE RIDGE ON UNIT 2 WILL LIKELY HAVE
                    UPSLOPE...EDDYING EASTERLY WINDS OF 4 TO
                    7 MPH.
 RIDGETOP...........SOUTHWEST 15 TO 30 MPH.
MIXING HEIGHT.......7500 FT AGL.
MIXING WINDS........SOUTHWEST 15 TO 25 MPH.

$$
FORECASTER...SCHULTZ/TESAR
REQUESTED BY...MARK HEPPLER
TYPE OF REQUEST...PRESCRIBED
.TAG 20120403.PICKE.02/BYZ