FNUS75 KBYZ 201618
FWSBYZ

SPOT FORECAST FOR BIG CREEK MEADOW...USFS
NATIONAL WEATHER SERVICE BILLINGS MT
1018 AM MDT WED OCT 20 2010

FORECAST IS BASED ON IGNITION TIME OF 1400 MDT ON OCTOBER 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
UPPER LEVEL RIDGE OF HIGH PRESSURE OVER THE FIRE SITE WILL BRING
CLEAR SKIES AND DRY CONDITIONS TODAY. TEMPERATURES WILL SLOWLY
WARM INTO THE 60S AND RELATIVE HUMIDITIES WILL DROP INTO THE 20S.
THE TEMPS AND HUMIDITIES WILL NOT REACH THESE VALUES UNTIL MID
AFTERNOON WHEN SOME WEAK MIXING WILL DEVELOP. AN INVERSION WILL
SET UP AGAIN TONIGHT AND MIXING WILL BE MINIMAL. SOLUM

.TODAY...

MAX TEMPERATURE.....61-66.
MIN HUMIDITY........23-28 PERCENT.
 RIDGETOP...........WEST 5 TO 15 MPH.
MIXING HEIGHT.......5300 FT AGL.
MIXING WINDS........WEST 5 TO 15 MPH.

.TONIGHT...

 RIDGETOP...........SOUTHWEST 5 TO 10 MPH.
MIXING HEIGHT.......300 FT AGL.
MIXING WINDS........WEST 5 TO 10 MPH.

$$
FORECASTER...SOLUM
REQUESTED BY...GREG JUVAN
TYPE OF REQUEST...PRESCRIBED
.TAG 20101020.BIGCR.01/BYZ