FXUS66 KMFR 211728

AFDMFR



Area Forecast Discussion

National Weather Service Medford OR

1028 AM PDT Sat Mar 21 2026



.DISCUSSION...Updated Aviation discussion...



&&



.AVIATION...21/18Z TAFs...Light precipitation along and near the 

coast will continue to diminish this morning. This moisture in the 

lower levels is producing MVFR conditions impacting North Bend and 

Roseburg, but will improve later this morning with VFR conditions 

anticipated.



In fact, all the terminals should spend a majority of 

this cycle in VFR, but there will be some low to mid clouds at times 

which could produce MVFR briefly. As the front passes stronger 

northerly winds will be present at the coast, and east side is 

expected to get breezy northwest winds as well. By late this 

afternoon, high clouds will likely be common across the region 

leading to VFR conditions.  



&&



PREV DISCUSSION... /Issued 405 AM PDT Sat Mar 21 2026/ 



DISCUSSION (Today through Friday)...



Key Points:



* Only minor impacts expected the next several days

	- Limited frost/freeze potential tonight/Sunday morning

	- Breezy winds on Tuesday coupled with low RH for eastside



Further Details:



We will see a weak trough pass through the PacNW today and will 

bring a front through the region. This front will likely bring very 

little rainfall for westside areas and is already showing signs of 

diminishing this morning. The bigger story is behind the front as 

colder air settles over the forecast area tonight, especially in the 

agricultural sense given the growing season is underway. At this 

time, eastside areas have the best shot of seeing temperatures below 

freezing which is not uncommon for this time of year. For example, 

normal lows for Klamath Falls this time of year is in the upper 20s. 

Northern Klamath and Lake counties may be in the upper teens to 

lower 20s for overnight lows. Westside areas where sensitive 

vegetation may be an issue will need to be monitored as temperatures 

could be down around 32-34 overnight Saturday into Sunday morning. 

Lower elevations on the westside have around a 10-50 percent 

probability for temperatures below freezing (similar to yesterday's 

forecast), but the areal coverage for these temps below freezing has 

shrunk. Meaning less areas have this probability now, especially 

lower elevations. Normal lows for Medford this time of year is 

around 38. The potential for freezing temperatures would only be a 

couple hours around sunrise. 



The pattern aloft turns mostly zonal into early parts of next week. 

A slightly stronger trough than the one today enters the region 

Tuesday into Wednesday. Rainfall from this system will likely 

produce higher amounts albeit still on the lower end overall 

relatively speaking for this time of year. Tuesday in particular 

will see breezy wind speeds for eastside areas. This will be 

combined with low RH values in the 20 percent range with 

precipitation likely not amounting to much on the eastside. That 

said, it should be noted minimum RH values have come up slightly for 

Tuesday with less areal coverage of 20 percent. Given the lack 

precipitation we could see at least an elevated fire weather 

conditions Tuesday for eastside areas. To some extent, we could see 

these elevated conditions continue through Wednesday but at this 

time wind speeds may not be as high as Tuesday. Overall, the next 

several days will be noted by dry conditions and low RH values, 

especially eastside areas.



MARINE...Updated 300 AM PDT Saturday, March 21, 2026...Small 

craft conditions begin this morning for all areas. A thermal 

trough strengthens today, bringing gusty north winds and steep to 

very steep seas to the waters from Cape Blanco south. Brief gales 

are possible for areas from Gold Beach south in the late 

afternoons and early evenings today and tomorrow. AHazardous Seas

Warning has been issued for later today and goes through early 

Monday for areas south of Cape Blanco, with small craft advisory 

conditions north of Cape Blanco. 



The outlook is for conditions to briefly improve Monday afternoon

and evening. Advisory strength winds are likely on Tuesday as a 

cold front swings through the waters. Gales are also possible if 

the front is strong enough, especially for areas from Cape Blanco 

northward on Tuesday. 



&&



.MFR WATCHES/WARNINGS/ADVISORIES...

OR...CA...None.



PACIFIC COASTAL WATERS...Small Craft Advisory until 5 AM PDT Monday 

     for PZZ350-356-370-376. 



Hazardous Seas Warning from 2 PM this afternoon to 5 AM PDT 

     Monday for PZZ356-376. 



&&



$$