textproduct: Medford

DISCUSSION

A stubborn marine layer has kept temperatures a bit cooler than anticipated in the Umpqua Valley and Roseburg this afternoon. Some cumulus buildups have developed across the forecast area this afternoon, although we're not anticipating showers or thunderstorms today.

A marine layer will likely develop again tonight and linger in the Umpqua Valley and coast again. This could keep temperatures a few degrees cooler than what is currently in the forecast around Roseburg and portions of the coast. We should also see some more mist and fog along the coast as the boundary layer compresses under this upper level ridge.

Temperatures remain warm on Thursday with highs 10 to 15 degrees above normal for early May. Although we're not in fire season yet, the winds and humidities will create some elevated fire weather conditions east of the Cascades. Winds will be gusting close to 30 mph with humidities in the lower teens. We'll see those conditions change into Friday as a short wave approaches the Oregon coastline. Temperatures will cool a few degrees, although remain above normal for this time of year.

Once this wave passes, we'll see temperatures push 10 to 15 degrees higher for the remainder of the weekend and continue into next week. It looks like a thermal trough will develop during Monday and aid us pushing temperatures higher. We're currently forecasting to tie the high temperature record at KMHS of 88 degrees on May 11. No other records are at risk, although we'll remain well above normal, just not smashing through records through the remainder of the forecast through mid week.

-Smith

AVIATION...06/18Z TAFs

Marine stratus is bringing IFR/MVFR conditions to the coastal locations and into the Umpqua Basin. The marine layer will gradually peel back to the immediate coast this afternoon, so conditions should improve to VFR in the Umpqua Basin but MVFR conditions will likely persist through the TAF period for coastal sites. Expect marine stratus to return to the Umpqua Basin again, bringing another round of MVFR/IFR ceilings tonight.

Elsewhere, VFR conditions will continue through the TAF period with typical increases in afternoon/evening winds. /BR-y

MARINE...Updated 1200 PM PDT Wednesday, May 6, 2026

Sub-advisory conditions are expected through Saturday. There could be a brief period of near advisory level winds tonight into early Thursday morning just south of Port Orford between 5 and 30nm from shore. Otherwise, north winds prevail through Thursday, switching to southerly as a weak front passes through the region. West-northwest swell dominated seas at or below 6 feet will also persist through early Saturday. A thermal trough develops over the weekend, bringing increasing north winds and resultant steep to very steep seas into early next week.

MFR WATCHES/WARNINGS/ADVISORIES

OR...None.

CA...None.

PACIFIC COASTAL WATERS...None.