591 

FXUS66 KMFR 292303

AFDMFR



Area Forecast Discussion

National Weather Service Medford OR

403 PM PDT Mon Jun 29 2026



.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 



&&



MARINE...Updated 200 PM PDT Monday, June 29, 2026...Strong north 

winds will result in very steep seas and isolated Gales from Gold 

Beach southward through Wednesday night. North of these areas, 

incoming swell and north winds will maintain steep seas through 

Wednesday night. While wind speeds do relax somewhat Tuesday morning 

and Wednesday morning, the general trend is for these conditions to 

last through Wednesday night. Thereafter, small craft conditions may 

last through later parts of the week, mainly for the southern 

waters. 



&&



.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. 



&&



$$