textproduct: Medford

UPDATE

Aviation discussion updated.

AVIATION...19/12Z TAFs

There could be localized areas of LIFR/IFR in fog/low clouds near the coast or in the coastal valleys this morning as models are showing a stratus layer very close to the coast tonight. Any areas of lower flight conditions should clear during the morning.

Tonight, a weak impulse will pass over the region, with a marine push possible through the overnight and early morning hours, which could produce MVFR/IFR ceilings/visibilities along the coast, in the coastal valleys, and into the Umpqua Basin, including at North Bend and Roseburg.

Elsewhere, VFR conditions will prevail through the TAF period.

PREV DISCUSSION

/Issued 1223 AM PDT Tue May 19 2026/

DISCUSSION...Upper level ridging will remain over the northeastern Pacific, just offshore of the West Coast, throughout the week. A few impulses are expected to ride up and over the ridge, keeping the impacts well to our north up in Washington and British Columbia, keeping southern Oregon and far northern California dry and warm. Meanwhile, a thermal trough will remain along the southwest coast, keeping temperatures in the Brookings area on the warm side, and producing daily afternoon breezes across the region.

As we maintain the dry airmass and breezy afternoons, there will be at least an elevated threat for fire weather conditions each day. However, fuel conditions per fire agencies reveal the overall fire weather threat will remain low to moderate. Given the low RH values and breezy winds each afternoon, people should exercise caution with any outdoor activities that could cause sparks or flames. Bottom line is that fire season was declared early this year, so these precautionary actions should already be in place, but its especially important when we have these elevated fire weather days.

Looking ahead, there are indications that the ridge will begin to break down this weekend, with the potential for a more robust trough to enter the Pacific Northwest around Memorial Day that could bring precipitation chances and cooler temperatures to the forecast area. Model suites are not in solid agreement with this scenario, with several differences in both timing and strength, so confidence is low. This will warrant a close eye for those with plans for the Memorial Day holiday.

MFR WATCHES/WARNINGS/ADVISORIES

OR...CA...None.

PACIFIC COASTAL WATERS...Hazardous Seas Warning until 11 PM PDT Wednesday for PZZ356-376.

Small Craft Advisory until 11 PM PDT Wednesday for PZZ350-370.