textproduct: Medford

UPDATE

Updated Aviation Discussion.

AVIATION...30/00Z TAFs

VFR levels persist across northern California and southern Oregon. Northerly flow continues to push clouds into Douglas and Coos counties, with high clouds and scattered cumulus fields elsewhere. MVFR ceilings are possible along the coast and into the Umpqua Valley overnight. There's a very slight chance of these ceilings reaching Medford or Grants Pass if the clouds can spill over terrain. Any MVFR ceilings that develop overnight look to dissipate through the morning, with widespread breezy to gusty winds in the afternoon.

PREV DISCUSSION

/Issued 301 PM PDT Mon Jun 29 2026/

DISCUSSION...Northerly flow aloft on the backside of an upper trough continues to push midlevel clouds into Coos and Douglas County, with the Umpqua Divide limiting flow farther south. Areas of terrain-generated cumulus are present to the east, with some upper level tufts moving southward as well. While some clearing is visible on satellite this afternoon, cloud cover looks to increase over Coos and Douglas counties overnight. Mid-level clouds may overflow into the Rogue Valley and bank up against the southern end into Tuesday morning. However, these clouds offer no chance of precipitation.

With the upper trough remaining in place, temperatures will remain below seasonal norms to start the week but will warm steadily. By Friday, temperatures look to be at average levels. A shortwave ridge will nudge daytime highs about 5 degrees above normal for Saturday and Sunday.

The tug-of-war between warmer daytime highs and clearing skies is keeping frost/freeze concerns in the forecast east of the Cascades. The coldest temperatures are forecast in Klamath Marsh, where sub- freezing overnight lows continue through the week. Surrounding communities, including Crescent and Chemult, may see periods of frost/freeze conditions just before sunrise through the week. Additional overnight cooling reaches towards southern Lake and Klamath counties Tuesday night into Wednesday morning, which may support a Frost Advisory. As of this writing, confidence in reaching those threshold temperatures as well as their duration (3 hours for a ) are not high enough to issue that product. Individuals with especially sensitive plants or animals may want to consider preventative action.

Small pockets of instability following the upper flow are expected to bring breezy afternoon winds, especially on Tuesday and Thursday. For these days, gusts at lower elevations look to be in the 10 to 20 mph range with gusts over elevated terrain could reach 20 to 30 mph.

Long-term guidance shows little expectation of change into early July. Neither ECMWF nor GFS meteograms show any inland precipitation, with unorganized chances for insignificant rainfall at North Bend. Considering Medford, GFS outcomes keep daytime highs at seasonal levels (About 85 degrees) while ECMWF members trend a bit higher (About 90 degrees) beyond the holiday weekend. -TAD

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.