999 
FXUS65 KMSO 141006
AFDMSO

WESTERN MONTANA AND NORTH CENTRAL IDAHO FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
305 AM MST SUN MAR 14 1999

FRONTAL BOUNDARY ON-SHORE LOCATED WESTERN WASHINGTON/OREGON WITH
SPOTTY WAA RAIN EASTERN WASHINGTON/IDAHO PANHANDLE/EXTREME NORTHWEST
MONTANA. ETA SLOWLY EDGES NORTHERN PORTION OF THIS BOUNDARY TOWARD
EASTERN WASHINGTON EARLY MONDAY. PREFERRED AVN/ETA SUGGEST UPPER
SUPPORT TO WEAKEN AS IT TRACKS ALONG NORTHERN TIER. FREEZING LEVEL
DIPS BUT STILL REMAINS ABOVE 5000 FEET. FORECAST PROBLEM STILL
REMAINS FRONTAL POSITION BY MONDAY MORNING. REGARDLESS..BEST CHANCE
OF LIGHT PRECIP FAVORS CENTRAL IDAHO TODAY/TONIGHT AND NORTHWEST
MONTANA OVERNIGHT. HOWEVER..NOT MUCH OF A WEATHER PRODUCER
CONSIDERING LACK OF DYNAMICS AND WEAK THERMAL CONTRAST. FEW
MORNING SHOWERS NORTHERN PORTIONS OF FORECAST AREA AS ZONAL FLOW
ALOFT REIGNS MONDAY. SOME DRYING LATE IN THE DAY.

EXTENDED...MRF KEEPS ZONAL FLOW TUESDAY WITH TRANSIENT S/W RIDGE
WEDNESDAY. THURSDAY..ANOTHER TROF DIGS OVER NORTHERN CALIFORNIA
SETTING UP WAA PRECIP OVER WESTERN MONTANA. WILL GO WITH SLIGHT
CHANCE AT THIS TIME.   

STOLL