|Northern Pacific 500 millibar forecast map for Sunday, September 29 at 5:00 p.m. PDT|
|Quantitative precipitation forecast for the three days ending 5:00 p.m. PDT Sunday, September 29|
Higher amounts could accumulate over west facing slopes of the Cascades where the moisture-laden onshore flow will be forced upward by the terrain. The first half of next week will be cloudy and showery as the large upper level trough remains over the region and smaller disturbances rotate through it. A second system may bring more significant rain about midweek, though this system should be weaker.
|The 5-day quantitative precipitation forecast for the period ending 5:00 p.m. MDT Tuesday, October 1.|