156 
FPUS65 KMSO 142045
AFDMSO

WESTERN MONTANA AND NORTH CENTRAL IDAHO FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
145 PM MST FRI FEB 14 1997

PVA AND WEAK WAA CONTINUING TO PUSH INTO WESTERN MONTANA AND IDAHO
THIS AFTERNOON WITH MSO REPORTING A MIXTURE OF RAIN AND SNOW ATTM. AS
RIDGE BUILDS AND SHIFTS EAST EXPECT TEMPERATURES TO MODERATE TO THE
MID 40S TO NEAR 50 IN MOST VALLEYS BY SECOND PERIOD...BUT SNOW LEVELS
SHOULD REMAIN AROUND 5000 AS COLD AIR ALOFT SLOW IN RETREATING. WITH
H5 RIDGE BUILDS SURFACE HIGH FORMS OVER THE AREA ON SATURDAY. SHOULD
BE ENOUGH RESIDUAL MOISTURE FOR SOME SHOWERS IN THE VALLEYS AND
MOUNTAINS UNDER FAVORABLE UPSLOPE CONDITIONS. THEN OVERNIGHT SATURDAY
FLOW BECOMES MORE WESTERLY TO KEEP PCPN MAINLY CONFINED TO THE
MOUNTAINS AND SHUTTING DOWN THE UPSLOPE PROCESS IN MOST VALLEYS.
RIDGE REMAINS DIRTY THROUGH FORECAST PERIOD TO KEEP CLOUDS IN
FORECAST SO NOT MUCH IN RADIATIONAL COOLING...BUT WITH RECENT PCPN
WILL INCLUDE SOME PATCHY VALLEY FOG WEST CENTRAL ZONE. SPLIT FLOW
DEVELOPS OVER THE REGION ON MONDAY...BUT NEXT INCOMING SYSTEM
STRETCHES APART AND WEAKENS. HARMER

...FORECASTS BELOW ARE PRELIMINARY AND SUBJECT TO CHANGE...

LIB .. 032/045 032/048 ... 326321
FCA OE 030/045 032/047 033 326321
POL .. 034/047 033/049 ... 326210 
MSO OE 033/048 032/050 032 326210
HMM .. 033/052 033/052 ... 326210
BTM .. 028/045 026/048 ... 325210
S80 .. 035/045 037/047 ... 324200
P69 .. 036/046 037/048 ... 324200
SMN .. 026/042 028/046 ... 324200