textproduct: Medford

AVIATION (00Z TAFs)

Areas of MVFR are expected along the coast north of Cape Blanco, and into the lower Umpqua Valley (north and northwest of Roseburg) around 06Z tonight to 17Z Wednesday morning. Also, gusty west to northwest winds of up to 25 kt will diminish after 04Z this evening. North to northwest breezes on Wednesday afternoon and evening will not be as strong, except at the coast south of Cape Blanco where gusts will again be at 20 to 30 kt. Otherwise, VFR will persist across the area through Wednesday evening.

MARINE...Updated 100 PM PDT Tuesday, June 9, 2026

Seas have subsided this afternoon with light to moderate west to northwesterly breezes. By Wednesday afternoon, a thermal trough brings gusty north winds and steep wind driven seas south of Cape Blanco, likely spreading to all areas by Thursday and potentially lasting through the weekend. Gales and very steep seas are possible then too, especially south of Gold Beach.

PREV DISCUSSION

/Issued 142 PM PDT Tue Jun 9 2026/

SYNOPSIS...

Frost and freezing temperatures will cover locations east of the Cascades tonight. Temperatures will trend warmer into the weekend. Moderate heat risk will likely develop by Sunday as highs push into the lower 100's with lows in the mid 60's. Temperatures trend cooler by next week.

DISCUSSION...

Nothing on radar this afternoon, although some surface stations have reported light rain over the previous hour in northern Douglas and Coos counties. Models continue to dry things out through the evening and overnight hours as the boundary layer dries out a bit.

Cooler onshore flow mixed with clearing skies will really allow temperatures to drop tonight east of the Cascades. Lows will approach the freezing mark in Klamath Falls, which has a 35% chance of lows below freezing tonight. Frost is definitely the more likely threat as Klamath Falls and Chiloquin have the highest chances of dropping below 36 tonight at 70% and 75%. Lakeview has a 50% chance while Alturas has a 60% chance of falling bellow 36.

By Wednesday and Thursday, a thermal trough will set up along the southern Oregon coast with some very light 5 knot easterly to north easterly breezes around 850mb. Temperatures will continue to trend warmer both days over southern Oregon and northern California as a ridge remains well to our east. It looks like temperatures peak in Brookings during this time with highs in the upper 70's and perhaps mid 80's on Thursday.

The theme of warming temperatures continues into Friday and the models are in pretty good agreement with 500 mb heights starting to increase over the Pacific Northwest. Things begin to diverge around Saturday and Sunday when a small set of ensembles(~25%) bring a short wave through eastern Oregon. The other set of ensembles strengthen the ridge over southern Oregon and northern California. The latest NBM run, which has now ingested the 12Z ensembles, has cooled a bit with a high of 100 here in Medford, which is 3 degrees short of the record of 103 on Sunday. However, highs near 100 with overnight lows in the mid 60's still puts us a moderate heat risk for this weekend. Moderate heat risk affects those sensitive to heat and without access to cooling/hydration facilities. It can also impact some health systems during the heat event.

Eventually, this ridge breaks down and ensembles hint at more zonal flow by Tuesday. Both the GFS and ECMWF show a well defined dry cold front pushing through Tuesday night of next week, so that will have to be something to watch.

-Smith

MFR WATCHES/WARNINGS/ADVISORIES

OR...Frost Advisory from 2 AM to 8 AM PDT Wednesday for ORZ029-031.

Freeze Warning from 2 AM to 8 AM PDT Wednesday for ORZ030.

CA...Frost Advisory from 2 AM to 8 AM PDT Wednesday for CAZ082>085.

PACIFIC COASTAL WATERS...Small Craft Advisory from 2 PM to 11 PM PDT Wednesday for PZZ356-376.