textproduct: Pendleton

KEY MESSAGES

1. Showers and isolated afternoon thunderstorms through Wednesday

2. Midweek mountain snowfall, Significant snow Oregon Cascades *Winter Storm Warning and Advisories Issued*

3. Drier and warmer conditions over the weekend

AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/

VFR conditions across most sites however a slow moving band of rain showers and moisture stretching W-E across nrn Oregon has ceilings IFR and MVFR KBDN/KRDM respectively. The forecast is for these ceilings to lift at least one category through the afternoon before returning to MVFR levels into the evening. MVFR ceilings may also impact KDLS late Tuesday evening as light rain begins. Rain spreads over the region through Wednesday morning. Elsewhere, ceilings will hover between 5-7kft but ceilings will be reduced going by Wednesday morning with the next storm. Winds will stay light and below 10kts at all terminals through the period.

AVIATION /00Z TAFS THROUGH 00Z THURSDAY/

Scattered showers will lift off the Washington Cascades and Northern Blue Mountains around 7 9Z, For all terminals, precipitation will be rain. Conditions deteriorate slowly through the overnight and Wednesday afternoon. For KPSC, chances for ceilings below 1000ft ramp up to only 20% through 18z Wednesday morning, however go to around 80% for the MVFR category range.

Preliminary Point Temps/PoPs

PDT 38 57 34 52 / 40 90 90 50 ALW 40 57 38 52 / 30 90 100 70 PSC 38 59 39 60 / 20 90 80 20 YKM 35 52 31 58 / 20 90 50 10 HRI 38 58 36 57 / 30 90 80 30 ELN 32 47 32 50 / 20 90 70 20 RDM 36 55 27 48 / 40 90 70 40 LGD 38 55 33 46 / 80 90 100 80 GCD 38 53 30 44 / 80 100 100 90 DLS 41 55 37 57 / 60 100 70 30

PDT WATCHES/WARNINGS/ADVISORIES

WA...Winter Weather Advisory from 11 AM Wednesday to 11 PM PDT Thursday for WAZ522. OR...Winter Storm Warning from 5 AM Wednesday to 5 PM PDT Thursday for ORZ509.