textproduct: Medford

DISCUSSION

Models continue to shift the axis of heaviest moisture associated with a strong moist plume to the north of our region. While some light rain will occur along the coast and over to the Cascades/Douglas County foothills tonight into Tuesday and a period of heavier, steadier rain is possible for areas along our Douglas/Lane county border, the vast majority of impactful precipitation will fall to the north of those locations. Farther south, little or no rain will occur south of the Umpqua Divide (including here in Medford, most of northern California and east of the Cascades in Oregon). Breezy winds are expected to develop east of the Cascades north of Highway 140 tonight and could bring advisory-level wind gusts (45 mph) to the higher terrain and typically channeled valleys. We have a wind advisory up for those areas, particularly along Highway 31 from Silver Lake to Valley Falls. Other than that, lower clouds and/or fog will be the main weather impact for the valleys west of the Cascades and south of the Umpqua Divide over the next several nights/mornings (through late week). Cold mornings can be expected, especially east of the Cascades, Thu-Sat. Next chance of significant precipitation won't come until later in the weekend at the earliest. -Spilde

AVIATION...08/18Z TAFs

Some lower ceilings persist at Medford this morning, but expect these to lift to MVFR, then VFR this afternoon. Most places will be VFR for a while into this evening. Then expect, lower ceilings to develop again tonight into Tuesday morning, down to MVFR, then IFR/LIFR. Areas of fog and terrain obscuration is also possible west of the Cascades. Strong winds aloft develop near the Cascades and over the east side in Oregon (north of Highway 140) tonight into Tuesday where higher terrain could experience gusts in excess of 50 mph. This could lead to some low-level wind shear over there (NE of Klamath Falls) since a low-level inversion probably doesn't allow these winds to mix all the way to the surface in some valleys. Even so, vertical mixing may improve Tuesday to allow surface wind gusts to 50 mph from around Summer Lake eastward. -Spilde

MARINE...Updated 815 AM PST Monday, December 8, 2025

South winds will persist with steep seas continuing north of Cape Blanco into this morning. Conditions worsen later this morning as southerly winds increase, especially north of Cape Blanco, and steep seas spread to all areas. Advisory level conditions are expected through Tuesday, and winds could approach gales late Monday into early Tuesday north of Cape Blanco. Conditions improve around mid-week as winds ease and seas become swell dominated. -9

MFR WATCHES/WARNINGS/ADVISORIES

OR...Wind Advisory from 7 PM this evening to 10 PM PST Tuesday for ORZ030-031.

CA...None.

PACIFIC COASTAL WATERS...Small Craft Advisory until 1 PM PST Tuesday for PZZ356-376.

Small Craft Advisory until 1 PM PST Tuesday for PZZ350-370.