FNUS75 KBYZ 101233
FWSBYZ

SPOT FORECAST FOR RESERVOIR FIRE...USFS BIGHORN NF
NATIONAL WEATHER SERVICE BILLINGS MT
633 AM MDT SAT SEP 10 2011

FORECAST IS BASED ON REQUEST TIME OF 0611 MDT ON SEPTEMBER 10.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
DRY CONDITIONS WILL CONTINUE OVER THE AREA THROUGH THE WEEKEND.
EXPECT GENERALLY EASTERLY WINDS TO CONTINUE OVER THE FIRE SITE
TODAY WITH RH READINGS DROPPING TO THE UPPER TEENS AND 20S THIS
AFTERNOON. SUNDAY WILL BE MORE UNSTABLE WITH RIDGETOP WINDS
BECOMING WESTERLY. AFTERNOON WIND GUSTS OF 23 MPH FROM THE WEST
WILL BE POSSIBLE. SUNDAY WILL HAVE THE LOWEST RH READINGS OF THE
NEXT SEVERAL DAYS. EXPECT HUMIDITY TO FALL INTO THE LOWER TEENS
WHILE TEMPERATURES REMAIN IN THE UPPER 60S. IT WILL REMAIN
UNSTABLE ON MONDAY WITH NORTHWESTERLY WINDS EXPECTED.

.TODAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....64-69.
MIN HUMIDITY........18-23 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......EASTERLY WINDS 5 TO 15 MPH WITH GUSTS TO 20 MPH
                    POSSIBLE IN THE AFTERNOON.
 RIDGETOP...........EAST 10 TO 15 MPH.
MIXING HEIGHT.......7800 FT AGL.
MIXING WINDS........NORTHWEST 5 TO 15 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MIN TEMPERATURE.....40-45.
MAX HUMIDITY........48-54 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......LIGHT WINDS IN THE EVENING BECOMING NORTHEAST 5 TO
                    10 MPH OVERNIGHT.
 RIDGETOP...........SOUTHWEST 10 TO 20 MPH.
MIXING HEIGHT.......300 FT AGL.
MIXING WINDS........SOUTHWEST 5 TO 15 MPH.

.SUNDAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....64-69.
MIN HUMIDITY........14-19 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTH WINDS 5 TO 10 MPH.
 RIDGETOP...........WEST 5 TO 15 MPH.
MIXING HEIGHT.......10200 FT AGL.
MIXING WINDS........WEST 5 TO 15 MPH.

$$
FORECASTER...TESAR
REQUESTED BY...MARVIN MATTHIESEN
TYPE OF REQUEST...WILDFIRE
.TAG 20110910.RESER.01/BYZ