769 FXUS66 KPDT 142019 AFDPDTArea Forecast Discussion National Weather Service Pendleton OR 119 PM PDT Sun Sep 14 2025
.DISCUSSION...Satellite imagery reveals a negatively tilted trough over the Pacific Northwest. The trough`s attendant cold front passed across the forecast area overnight through this morning, and is now tracking east into the northern Rockies. Widespread cumulus has developed in the weakly unstable post-frontal environment, though most updrafts are still shallow (
NWS PDT Office Area Forecast Discussion