textproduct: Medford

Updated AVIATION Discussion

AVIATION...09/06Z TAFs

VFR conditions will prevail for the region through the TAF period. Lower end VFR ceilings, and perhaps occasional MVFR ceilings, are expected along the coast and into the Umpqua Basin as showers move into the region between 08z-12z tonight. Terrain obscurations will persist along the Cascades/Foothills and the Siskiyous as northwest to northerly flow keeps stratus banked up there. Otherwise, high level clouds will continue to stream over the region through the TAF period, with gusty winds developing Tuesday afternoon. /BR-y

PREV DISCUSSION

/Issued 844 PM PDT Mon Mar 9 2026/

DISCUSSION...The showers are still on track to arrive overnight to the northwest near Coos and Douglas counties. The one change made to the forecast is that low temperatures for tonight have been increased. Satellite shows a continuous stream of high clouds through Southern Oregon and Northern California, and this cloud cover will prevent temperatures from falling as low as previously forecast. Temperatures near the coast and in the Umpqua Basin will be in the mid-30s, low 30s for the Rogue Valley, and 20s/low 30s for Northern California and east of the Cascades.

Temperatures will increase Wednesday through Friday. -Hermansen

MARINE...Updated 830 PM PDT Monday, March 9, 2026...Gusty north winds will maintain steep to very steep seas south of Cape Blanco through tonight. Wind wave dominated seas transition to steep west- northwest swell on Tuesday, followed by increased south winds Wednesday into Thursday, as a front approaches the area then stalls out just to our north. The strongest winds and more unsettled weather will remain north of Florence, but steep seas will persist north of Cape Blanco with very steep seas possible north of Reedsport Wednesday afternoon and evening. Improving conditions are possible late in the week. /BR-y

PREV DISCUSSION... /Issued 506 PM PDT Mon Mar 9 2026/

DISCUSSION...Updated Aviation Forecast...

AVIATION...09/00Z TAFs...VFR conditions are present this TAF period with 3500 to 4500 ft ceilings arriving between 04Z-06Z at the coast and in the valley near Roseburg. Showers are forecast to arrive at the coast (North Bend) near 08Z and Roseburg near 12Z. The shower chances will move north but still clip the coast and North Bend area through Wednesday afternoon. -Hermansen

PREV DISCUSSION... /Issued 222 PM PDT Mon Mar 9 2026/

DISCUSSION...Zonal flow aloft will be a constant feature through the week ahead. Onshore flow is allowing for cloud cover to bank up against the Cascades and remain over west side areas while skies to the east are mostly clear. Slight chances (10-30%) of precipitation remain along the coast and Cascades through the week. In times without an atmospheric mechanism, any development will come from orographic lift. This will keep most showers light and over the coast or terrain, with minimal activity over west side valleys.

Cold air moving along the zonal flow is keeping daytime highs below seasonal norms. Tonight will have the coolest temperatures of the forecast period. Overnight lows near the coast will be near frost levels and local frosty conditions are possible. West side valleys will be in the high 20s (Northern CA) to mid 30s (Roseburg), and areas east of the Cascades will be in the low to mid 20s. The combination of cold air and slight precipitation will make snow showers "possible" for some west side areas tonight, as snow levels will be in the 1500-2500 foot range into Tuesday morning. The precipitation chances are low enough and amounts light enough that actual snowfall will be rare. Cool conditions and uneventful weather continue on Tuesday.

On Wednesday, temperatures start to warm across the area. A weak warm front arriving at the coast will increase shower chances over Curry, Coos, and Douglas counties as well as along the Cascades, but any rainfall/mountain snowfall will be light. Afternoon and evening winds are expected to increase, but not to hazardous levels. Breezy conditions are expected across the west side. Areas to the east will see higher winds, with gusts in east side basins possibly reaching 20 mph while winds over terrain may reach up to 40-45 mph. This pattern of afternoon/evening breezes and gusts looks to be be present through the end of the week and may last into Saturday.

Slight shower chances remain in the forecast for coastal counties and the Cascades on Thursday and Friday as zonal flow stays in place. On Saturday, a weak cold front may bring showers farther inland, but precipitation amounts and winds look unimpactful. There's some agreement in long-term ensemble guidance that a Pacific ridge will strengthen in the wake of Saturday's cold front, bringing above average temperatures across the area on Sunday and into the following week. -TAD

MFR WATCHES/WARNINGS/ADVISORIES

OR...CA...None.

PACIFIC COASTAL WATERS...Small Craft Advisory until 11 PM PDT Tuesday for PZZ356-376.

Small Craft Advisory from 5 AM Tuesday to 5 PM PDT Wednesday for PZZ350-370.

Hazardous Seas Warning until 5 AM PDT Tuesday for PZZ356-376.