000
FXUS66 KOTX 280556
AFDOTX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPOKANE WA
956 PM PST MON DEC 27 2010
.SYNOPSIS...
A STORM SYSTEM IS MOVING THROUGH THE INLAND NORTHWEST...BRINGING A
MIX OF SNOW AND RAIN TO THE REGION. HEAVY...WET SNOW ACCUMULATIONS
ARE EXPECTED INTO MONDAY MORNING OVER FAR NORTHEAST WASHINGTON
AND OVER THE CENTRAL AND NORTHERN IDAHO PANHANDLE. A STRONGER
STORM SYSTEM IS EXPECTED TUESDAY NIGHT AND WEDNESDAY FOR THE
PANHANDLE AND EXTREME EASTERN WASHINGTON. MUCH COLDER AIR WILL
THEN MOVE INTO THE REGION. BELOW AVERAGE TEMPERATURES ARE LIKELY
THURSDAY THROUGH EARLY NEXT WEEK.
&&
.DISCUSSION...ZONES NEED LITTLE MODIFICATION AS INCOMING FRONTAL
ZONE SPREADS PRECIPITATING FROM WEST TO EAST WITH WEB-CAMS FROM
AROUND THE REGION GENERALLY SHOWING SNOW FOR MOST LOCATIONS WITH
THE EXCEPTION OF A RAIN SNOW MIX OF VARYING INTENSITY NEAR 2000
FEET AND BELOW IN THE SPOKANE AND COEUR D ALENE AREA. /PELATTI
&&
.AVIATION...
WINTER STORM SPREADING PRIMARILY SNOWFALL PRODUCED IFR CEILINGS
AND VISIBILITIES FROM WEST TO EAST TONIGHT AND INTO TOMORROW
MORNING. NEAR 18Z TUESDAY SOME DECREASE IN PRECIPITATION INTENSITY
SHOULD ALLOW IMPROVEMENT IN BOTH CEILING AND VISIBILITIES.
IMPROVEMENT IS SHORT LIVED HOWEVER AS YET A SECOND WEATHER SYSTEM
WILL BRING MORE WIDESPREAD SNOW TO THE AREA BEGINNING NEAR 6Z
WEDNESDAY WITH THE PRECIPITATION INTENSITY INCREASING GREATLY
BETWEEN 6-18Z WEDNESDAY...ESPECIALLY IN SOUTHEAST WASHINGTON AND
THE NORTHERN IDAHO PANHANDLE SO MORE IFR CEILINGS AND VISIBILITIES
ARE TO BE EXPECTED. /PELATTI
&&
.PRELIMINARY POINT TEMPS/POPS...
SPOKANE 32 37 31 31 13 18 / 100 80 80 80 30 0
COEUR D'ALENE 32 38 32 32 13 17 / 100 80 80 80 40 0
PULLMAN 33 39 32 32 17 20 / 100 80 90 80 40 10
LEWISTON 37 40 37 37 23 25 / 70 70 70 60 40 20
COLVILLE 32 37 31 31 17 19 / 100 70 50 50 10 0
SANDPOINT 32 35 32 32 16 17 / 100 80 70 80 50 0
KELLOGG 30 36 31 31 10 17 / 100 90 90 100 70 10
MOSES LAKE 32 37 29 29 18 21 / 60 20 50 30 10 0
WENATCHEE 32 35 29 29 21 21 / 50 20 30 30 10 0
OMAK 31 33 28 28 14 16 / 60 20 30 40 10 0
&&
.OTX WATCHES/WARNINGS/ADVISORIES...
ID...WINTER WEATHER ADVISORY UNTIL 10 AM PST TUESDAY IDAHO PALOUSE.
WINTER STORM WARNING UNTIL 1 PM PST TUESDAY CENTRAL PANHANDLE
MOUNTAINS...NORTHERN PANHANDLE.
WINTER STORM WARNING UNTIL 10 AM PST TUESDAY COEUR D'ALENE AREA.
WA...WINTER WEATHER ADVISORY UNTIL 10 AM PST TUESDAY SPOKANE AREA...
UPPER COLUMBIA BASIN.
WINTER STORM WARNING UNTIL 1 PM PST TUESDAY NORTHEAST
MOUNTAINS...OKANOGAN HIGHLANDS.
WINTER WEATHER ADVISORY UNTIL 7 AM PST TUESDAY EAST SLOPES
NORTHERN CASCADES...OKANOGAN VALLEY...WATERVILLE PLATEAU...
WENATCHEE AREA.
WINTER STORM WARNING UNTIL 10 AM PST WEDNESDAY ABOVE 4000 FEET
FOR THE NORTHEAST BLUE MOUNTAINS.
&&
$$
