textproduct: Medford

KEY MESSAGES

* Low impact weather expected this weekend and through much of next week.

* Cooler than normal temperatures continue today, returning to seasonable values this weekend and through next week. High temperatures peak around 5-10 degrees above normal on Sunday.

* Dry conditions expected through at least Thursday next week. Next chance for precipitation possible next weekend (9/25-9/27).

DISCUSSION

An upper level low remains situated over south eastern Oregon near the Idaho border this afternoon with some cumulus build ups over Lake and Klamath County. Eventually, we should see that low shifting towards the east through the evening. The coast will remain socked in with low clouds and some fog, although areas to the east will remain clear overnight.

With high pressure starting to build tonight, we'll begin a gradual warming trend this weekend with highs peaking in the lower 90's here in Medford on Sunday. This will be just a few degrees warmer than normal for this time of year in the middle of September.

The upper level pattern appears progressive with a closed low moving into California by Sunday night with west to east 500 mb heights and zonal flow in Oregon. Quiet weather will likely persist into early next week under this pattern before we see troughing in the Gulf of Alaska around the Thursday timeframe. ECMWF ensemble members are starting to show a cold front and narrow band of precipitation off our coast around Thursday before this front could move inland. The NBM has a 10% chance of precipitation Friday as the trough in the gulf moves inland. This won't be a very wet event even if it does rain as members are only bringing about 0.5 inches of rain into areas of western Oregon.

Overall, pretty quiet weather continues through the next 7 days as the extreme forecast index(EFI) doesn't show anything noteworthy over southern Oregon or northern California.

-Smith

AVIATION...19/00Z TAFs

Marine stratus along the coast looked to be clearing briefly but satellite imagery shows the layer starting to rebuild over North Bend which is keeping MVFR levels in place. Other parts of the coast will see marine stratus return through the evening. Early Saturday morning, flight levels along the coast are expected to drop to IFR or LIFR then return to MVFR near the end of the TAF period.

Stable atmospheric conditions will keep inland areas at VFR levels with normal diurnal breezes through the TAF period. Clear skies are only being interrupted by popcorn cumulus developing over terrain, but showers and thunderstorms are not in the forecast. -TAD

MARINE...Updated 100 PM PDT Friday, September 18, 2026

Light northerly winds and low seas will persist through Saturday morning. Gusty north winds return Saturday afternoon with steep seas likely developing south of Cape Blanco by late Saturday evening, possibly reaching as far north as Coos Bay or Reedsport by Sunday afternoon. North winds and wind driven seas are likely to build to a peak Monday, and remain near that level on Tuesday, with isolated gales possible south of Cape Blanco. Conditions look to improve on Thursday.

MFR WATCHES/WARNINGS/ADVISORIES

OR...None.

CA...None.

PACIFIC COASTAL WATERS...None.