textproduct: Medford

Updated AVIATION Discussion

AVIATION...02/18Z TAFs

VFR conditions will prevail across the region through the evening with the typical increase in wind speeds. Mid-high level cloud cover will gradually increase this afternoon in advance of a weak front that will move through the region overnight into Wednesday morning. This will bring increasing MVFR ceilings along the coast and inland west of the Cascades after 03/12z with some light rain mainly along the coast. /BR-y

PREV DISCUSSION

/Issued 637 AM PDT Tue Jun 2 2026/

DISCUSSION...A shortwave ridge passing over northern California and southern Oregon will keep daytime highs 5 to 10 degrees above normal today. Coastal cities will see temperatures in the mid to high 60s, while west side valleys will reach the high 80s to low 90s. East side valleys and basins will be in the high 70s to low 80s. Forecast temperatures are safely below record highs for the day. Medford reached 102 in June 2nd, 1924. Record highs for other areas are generally about 10 degrees above today's forecasted temperatures.

A weak front approaches the Pacific Northwest on Wednesday, pushing the shortwave ridge away to the east. This will help to cool daytime highs by 5 to 10 degrees on Wednesday. Breezy winds are expected across the area as this front passes to the north. Just enough instability may be present to allow for isolated thunderstorms (10- 20% chances) in northern Lake County in the afternoon and evening, but widespread activity is not expected. Zonal flow follows behind the front, keeping temperatures across the area at seasonal levels through the end of the week.

A low pressure system approaches the area over the weekend. Long- term models are still disagreeing on how this low will behave, with ECMWF imagery keeping the system to the north while the GFS is expecting a split trough to develop. Neither outcome looks to bring any impactful weather to the area. If the low stays to the north, some light coastal showers are possible on Saturday morning. Of course, diverging model runs results in diverging outcomes beyond this weekend. But a trend of somewhat mild weather looks to continue into the start of next week, as neither model expects anything too disruptive at this point. -TAD

MARINE...Steep seas are limited to outer waters south of Cape Blanco as northerly winds continue to ease this morning. All waters will be below advisory levels by this afternoon. North winds ramp up briefly on Thursday, likely bringing steep seas to areas from Gold Beach southward. Otherwise, conditions are expected remain below advisory criteria through much of the weekend.

FIRE WEATHER...Updated 100 PM PDT Monday June 1, 2026...A warm and dry period is expected as a weak upper level ridge remains over the area through Tuesday. Daily high temperatures will be about 10 degrees above normal for this time of year, with generally light winds (easterly over terrain), and typically dry minimum humidities.

An upper level trough passes over the region Wednesday. This will be a mostly dry front, with some light showers possible along the coast and over the Cascades, and isolated thunderstorms are possible east of the Cascades, mainly north and east of Crater Lake. Instability is weak, and with the lack of moisture, it will be difficult for showers to develop, much less thunderstorms, but it is possible.

The front will also produce gusty late morning and afternoon winds across most of the area Wednesday, but fortunately humidities will trend higher, so we should stay well above any critical thresholds. Breezy afternoon winds and somewhat cooler temperatures arrive behind the front and persist through the weekend, with temperatures dropping to near or only slightly above normal for early June.

Another, weak and mostly dry front arrives this weekend, with gusty afternoon winds being the primary concern Friday and Saturday. Humidities again look to remain above any thresholds for most of the area, but may drop just to those thresholds for an hour or two over portions of the far East Side, namely eastern Modoc and Lake counties. -BPN

MFR WATCHES/WARNINGS/ADVISORIES

OR...None.

CA...None.

PACIFIC COASTAL WATERS...None.