


Area Forecast Discussion
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
788 FXUS66 KPDT 132200 AFDPDT Area Forecast Discussion National Weather Service Pendleton OR 300 PM PDT Sun Jul 13 2025 ...Fire Weather Watch through Monday evening for winds and RHs... SHORT TERM...Today through Tuesday...Not a significant change in the forecast from yesterday. High pressure will continue over the region and will persist through mid week. With the uptick in temperatures and the lack of overnight low temperature recoveries, a Heat Advisory has been issued for today through Monday for the Basin, Gorge, Yakima/Kittitas Valleys, and the foothills of the northern Blues. HeatRisk shows a marginal risk for meeting the advisory threshold Monday, but with highs wavering around 100 degrees and little reprieve in overnight temperatures. Models show the surface pressure difference across the Cascades will lead to 20-25 mph sustained winds through the Gorge and Kittitas Valley with 50-70% of the ensembles in agreement and 50-70% of the ensembles in agreement the Kittitas Valley could see gusts as high as 40 mph while the Gorge will see 50-70% probabilities of 25-30 mph gusts. LONG TERM...Wednesday through Sunday...Pattern shift is eminent however, models have continued to show quite a bit of disagreement with the incoming next system. Mainly beginning Wednesday and after. Models are showing either a shortwave trough sweeping across the northern portion of the region or benign westerly flow with the trough staying a bit farther north. The primary tell will be dependent on the depth of the track the trough takes. As of now it shows we will remian dry and the track of the system will be a bit to the northeast. However, confidence in the forecast after Wednesday is low. If the trough digs farther south, models and ensembles are in agreement that this will bring with it a change in prevailing wind direction with prevailing winds shifting to the north then to the east which will become a major concern for boots on the ground at wildfire incidents. This track will also allow for the insurgence of moisture from the south that will lead to the likelihood of thunderstorms moving across central OR and the eastern mountains. Bennese/90 && .AVIATION...18Z TAFs...VFR conditions with mostly SKC/FEW250 will prevail through the period. Breezy conditions will continue at DLS 10-14 kts with gusts beginning around 23Z to 20-25 kts. Winds will increase around 22-00Z at RDM/BDN/YKM 9-12 kts with gusts between 15-20 kts. Elsewhere, winds will be variable and below 12 kts. Bennese/90 && .PRELIMINARY POINT TEMPS/POPS... PDT 68 97 60 87 / 0 0 0 0 ALW 71 97 63 85 / 0 0 0 10 PSC 68 99 63 88 / 0 0 0 0 YKM 68 96 63 87 / 0 0 0 0 HRI 68 98 63 89 / 0 0 0 0 ELN 68 88 60 87 / 0 0 0 0 RDM 56 95 48 84 / 0 0 0 0 LGD 63 94 58 80 / 0 0 0 0 GCD 60 96 54 84 / 0 0 0 0 DLS 71 89 62 92 / 0 0 0 0 && .PDT WATCHES/WARNINGS/ADVISORIES... OR...Heat Advisory until 8 PM PDT Monday for ORZ041-044-507. WA...Heat Advisory until 8 PM PDT Monday for WAZ024-026>029. Fire Weather Watch through Monday evening for WAZ690-691. && $$ SHORT TERM...90 LONG TERM....90 AVIATION...90