Area Forecast Discussion
Issued by NWS Pocatello, ID

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FXUS65 KPIH 161954
AFDPIH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO ID
155 PM MDT THU OCT 16 2014

.SHORT TERM...TONIGHT THROUGH SUNDAY. A WEAK DISTURBANCE WITH
ATTENDING CLOUD COVER WAS SHIFTING EAST THROUGH IDAHO THIS
AFTERNOON. DRIER CONDITIONS WERE NOTED ACROSS OREGON WHICH SHOULD
FOLLOW LATER TONIGHT AS THE DISTURBANCE MOVES EAST INTO/THROUGH
MONTANA. FURTHER WEST...SATELLITE IMAGERY WAS SHOWING THE NEXT PAC
STORM SYSTEM ADVANCING TOWARD THE WEST COAST. THE MODELS SHOW THIS
WAVE MOVING INTO THE COASTAL WATERS FRIDAY MORNING WHILE A
DOWNSTREAM RIDGE AMPLIFIES OVER IDAHO. THUS...DRY CONDITIONS ARE
EXPECTED TO CONTINUE THROUGH FRIDAY MORNING WITH HIGH LEVEL CLOUDS
ADVANCING INTO THE AREA FRIDAY AFTERNOON/NIGHT AS THE TROUGH BEGINS
TO MOVE ONSHORE. THE MODELS REMAIN STEADFAST WITH THE IDEA THAT THE
INCOMING TROUGH WILL SPLIT LIFTING THE NRN PORTION OF THE STORM
THROUGH WASHINGTON INTO SW CANADA SATURDAY WHILE THE SRN PORTION
SPILLS INTO CALIFORNIA FORMING A WEAK LOW CENTER ALONG THE SW COAST.
LITTLE TO NO IMPACT IS EXPECTED FOR SE IDAHO UNDER THIS SPLIT FLOW
OTHER THAN PERHAPS A MODEST INFLUX OF CLOUD COVER. BY SUNDAY...THE
RIDGE REBOUNDS ACROSS THE REGION AS THE NEXT PAC WAVE APPROACHES THE
NW COAST. GRADUALLY WARMER TEMPERATURES ARE ANTICIPATED THROUGHOUT
THE FORECAST PERIOD WITH AFTERNOON HIGHS RUNNING 5 TO 10 DEGREES
ABOVE NORMAL FOR THIS TIME OF YEAR. HUSTON

.LONG TERM...SUNDAY NIGHT THROUGH THURSDAY. EXPECT MAINLY DRY
CONDITIONS WITH ABOVE NORMAL TEMPERATURES THROUGH THE PERIOD. THE
ONE CHANCE FOR SHOWERS SHOULD BE TUESDAY INTO WEDNESDAY AS A
WEAKENING PACIFIC UPPER LEVEL SYSTEM MOVES THROUGH IDAHO. HEAVY
PRECIPITATION IS NOT EXPECTED HOWEVER WITH THIS SYSTEM. GK
&&

.AVIATION...VFR CONDITIONS WITH LIGHT WINDS ARE EXPECTED THROUGH
FRIDAY. GK
&&

.FIRE WEATHER...HIGH PRESSURE WILL PRODUCE LIGHT WINDS AND MAINLY
DRY CONDITIONS THROUGH THE WEEKEND. VALLE
&&

.PIH WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$









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