331 
FPUS66 KPDT 080708 COR
AFDPDT

NORTHEAST OREGON/SOUTHEAST WASHINGTON FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
830 PM PDT TUE OCT 7 1997   ...CORRECTED DATE...

WV IMGRY SHOWS MAIN LO PRES LOCATED NR 51N/138W. FIRST BAROCLNCN
BAND COMING ACRS THE CASCDS IS WKNG AND 88D SHOWS MOSTLY MID TO HI
CLDS. MDLS SHOW 120+KT JET WILL HELP TO PUSH SFC FNT TO THE OFSHR
WTR ARND 06Z WITH FNT COMING OVR CASCDS ARND 12Z. MAIN FNT WL MOVE
E OF CASCDS WED. STG SE GRADS AHD FNT WL CHANNEL WNDS THRU BAKER
AND GRANDE RONDE VLLY BUT WL ALSO CAUSE DNSLP AND DRYING ALG THE
FOOTHILLS ZONE. E SLOPES WASH CASCDS COULD SEE RAIN BY MRNG AS SW
FLO BRING MSTR INTO AREA AHEAD OF FNT. DRYING BEHIND FNT MAY BE BRF
AS MAIN LO REMAINS NR VRISL AND SW FLO CONTG TO BRING MSTR INTO
AREA. MDL STL HINTS AT WAVE DVLPG ALG FNT WHICH WOULD CUT DOWN ON
WND BUT ALSO SLOW DOWN THE EWD MVMNT.

FOLLOWING FRONT...SNW LEVELS WL DROP...POSING A THREAT FOR HIR ELEV
OF BLUES. PORTLAND NWS WL HANDLE THIS POTENTIAL WITH STATEMENT.
MTN SNW POTENTIAL FOR BLUES EVEN HIGHER THU NGT AND FRI AS UPR FLOW
SHIFTS TO NW AND UPSLP.
FB

PDT 1764  ALW 1765  PSC 2654  YKM 4754

.KPDT WSR-88D...VCP-32/CSR-21.

.KPDT...NONE.