textproduct: Medford

DISCUSSION

KEY POINTS...

* No significant weather impacts expected through the 4th of July.

* Mild temperatures and enhanced afternoon breezes will continue today and Thursday.

* No precipitation in the forecast. Afternoon cumulus buildups expected across northern California and East Side through Thursday...stray shower possible.

* Temperatures trend warmer Friday into the weekend, peaking around 5 to 8 degrees above normal.

* Sunday into early next week - pattern bears watching for potential thunderstorms and/or days where gusty winds combined with low RH could result in critical fire weather conditions.

A broad upper trough will remain in place over the region through at least Thursday. This will bring continued mild temperatures to the area with highs slightly below normal. Winds will be breezy to gusty in the afternoons and evenings for most locations. Also expect daily marine pushes of low clouds into Coos County and the Umpqua basin during the nighttime/morning hours, with clearing by early afternoon.

A weak upper level disturbance on Thursday may bring some cumulus build ups to mountains east of the Cascades and over northern California but models and ensembles continue to indicate very low chances (5% or less) for showers or thunderstorms over the area.

The upper trough shifts northeast and heights build over the area on Friday and Saturday. This will allow temperatures to trend warmer. Highs are expected to be around 5 to 8 degrees above normal for inland areas with highs ranging from the upper 80s to mid 90s across inland valleys by Saturday.

A high pressure ridge builds over the western US Sunday into early next week with the ridge axis centered east of the area. Meanwhile, to the northwest, an upper low approaches British Columbia with a trough developing off the PacNW coast. This pattern will result in continued warmer than normal temperatures across inland areas. Southwest flow aloft may bring increased mid level moisture into the area at times. However, models indicate deeper monsoon moisture and remnants of tropical activity will remain well to the south. Weak mid level moisture combined with daytime instability and weak disturbances aloft may allow for a low chance (10%) for thunderstorms as early as Sunday and moreso, on Monday and tuesday, mainly for northern California and from the Cascades east. Additionally, with the upper trough approaching the region and disturbances aloft, we may see periods of enhanced afternoon and evening winds starting around Monday and Tuesday. We will monitor this period for the potential of gusty winds and low humidities which could result in critical fire weather concerns.

AVIATION...01/12Z TAFs

Onshore flow is bringing an overcast deck of 3500-4000 ft AGL to Coos and Douglas Counties with areas of mountain obscurations through 17-18z this morning. These clouds will clear in the late morning and early afternoon. Expect another round of breezy to gusty winds across the area during the late afternoon and evening, generally gusts 20-25 kt. Then, areas of MVFR are expected to develop along the coast north of Cape Blanco Wednesday night.

MARINE...Updated 200 AM PDT Tuesday, June 30, 2026

Strong north winds continue, resulting in very steep seas and areas of gales from Gold Beach southward through Wednesday night. North of these areas, a combination of fresh swell and north winds will maintain steep seas through Wednesday night. Then, small craft advisory level conditions may last through later parts of this week, mainly across the southern waters. Winds may increase late Saturday into Sunday, resulting in a potential for elevated winds and seas across most the waters.

MFR WATCHES/WARNINGS/ADVISORIES

OR...CA...None.

PACIFIC COASTAL WATERS...Small Craft Advisory until 5 AM PDT Thursday for PZZ350-356-370-376.

Gale Warning until 5 AM PDT Thursday for PZZ356-376.