textproduct: Pendleton

KEY MESSAGES

- Dry conditions and light winds though the weekend.

- Warmer than normal Sunday and Monday

- Breezy winds return to the Columbia River Gorge by Monday

DISCUSSION

Zonal flow aloft transitions to more of a broad upper ridging pattern over the next 36-48 hours over the PAC/Interior NW region. An initial cold frontal passage will keep temperature steady to slightly cooler Saturday, but noticeably warmer by Sunday and Monday. Already Today, highs should reach the low to mid 80s across the John Day Basin and Central Oregon and experience a sharply warmer afternoon as temperatures approach 90 in central Oregon and break into he low to mid 90s in the John Day Basin.

A period of more breezy winds though the gaps could be on Monday into Monday night, for Kittitas Valley, Columbia River Gorge and Oregon Columbia Basin/Simcoe Highlands.

The forecast looks dry through about October 10-11 when the LREF clustering indicates a couple of clusters (3 and 4 ) favoring more of a coastal troughing pattern/cooler aloft and resulting wetting rains across the WA Cascades eastern slopes.

AVIATION /12Z TAFS THROUGH 12Z SATURDAY/

High pressure will maintain light and variable winds at all terminals through the TAF period. DLS is the exception, as winds may reach a sustained 12 knots out of the west northwest between 22 and 02z.

Preliminary Point Temps/PoPs

PDT 78 47 79 49 / 0 0 0 0 ALW 79 52 81 55 / 0 0 0 0 PSC 81 49 82 49 / 0 0 0 0 YKM 79 50 79 50 / 0 0 0 0 HRI 81 50 80 49 / 0 0 0 0 ELN 75 46 75 48 / 0 0 0 0 RDM 81 41 81 41 / 0 0 0 0 LGD 81 46 82 49 / 0 0 0 0 GCD 82 47 88 49 / 0 0 0 0 DLS 83 53 83 56 / 0 0 0 0

PDT WATCHES/WARNINGS/ADVISORIES

WA...None. OR...None.