FXUS66 KOTX 102136
AFDGEG

EASTERN WASHINGTON AND NORTH IDAHO AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPOKANE WASHINGTON
230 PM PDT TUE JUN 10 2003

.SYNOPSIS...A LOW PRESSURE TROUGH IS MOVING THROUGH THE INLAND
NORTHWEST THIS AFTERNOON. ONCE THIS TROUGH PASSES TO OUR EAST
A WEAK RIDGE WILL BUILD OVER THE AREA ON WEDNESDAY. A TROUGH IS THEN
FORECAST TO DEVELOP ON THURSDAY AND REMAIN OVER THE AREA THROUGH THE
WEEKEND.

.DISCUSSION...
.TONIGHT THROUGH FRIDAY...A DYNAMIC SHORTWAVE TROUGH IS MOVING
THROUGH EASTERN WASHINGTON AT THIS TIME AND HAS PRODUCED NUMEROUS
SHOWERS AND A FEW THUNDERSTORMS OVER THE REGION. THESE
THUNDERSTORMS HAVE THE POTENTIAL OF PRODUCING SMALL HAIL...GUSTY
WINDS...FREQUENT LIGHTNING AND HEAVY RAIN. ONCE THE WAVE PASSES TO
OUR EAST AND WE LOSE OUR DAYTIME HEATING THE SHOWER/THUNDERSTORM
ACTIVITY SHOULD BEGIN TO SUBSIDE. A WEAK RIDGE IS FORECAST TO
BUILD OVER THE REGION ON WEDNESDAY WHICH SHOULD LEAD TO A DRY DAY
EXCEPT THAT A FEW SHOWERS OVER THE NORTHERN MOUNTAINS ARE POSSIBLE.
BY WEEKS END A DEEP TROUGH WILL DEVELOP OFF THE WASHINGTON COAST
BRINGING MOIST SOUTHWESTERLY FLOW TO THE INLAND NORTHWEST. THIS WILL
KEEP THE WEATHER UNSETTLED THROUGH FRIDAY.

.SATURDAY THROUGH TUESDAY...A TROUGH WILL LIE OVER THE PACIFIC
NORTHWEST THROUGH THE EXTENDED PERIOD KEEPING A CHANCE OF SHOWERS
OVER THE MOUNTAINS EACH DAY. CC


...THE INFORMATION IN THIS PRODUCT CONCERNING WARNINGS AND FORECASTS
IS VALID ONLY AT THE TIME OF ISSUANCE. THE LATEST WARNING AND
FORECAST INFORMATION WILL BE FOUND IN THE APPROPRIATE PRODUCTS...

GEG 049/075/050/076/047/071 201123
COE 048/074/049/075/046/070 201124
PUW 047/075/048/075/045/071 20-123
LWS 051/081/054/080/051/076 20--22
CQV 048/077/048/077/045/073 31-124
SPT 044/073/044/076/043/071 311124
WWP 044/072/044/072/042/069 311124
MWH 050/081/050/082/049/077 100012
EAT 053/080/051/079/050/075 20--22
OMK 050/079/050/080/048/076 20--22


$$