Marine Weather and Tide Forecast for Yreka, CA

FXUS66 KMFR 102339 AFDMFR

Area Forecast Discussion National Weather Service Medford OR 439 PM PDT Thu Oct 10 2024

Updated AVIATION discussion

DISCUSSION
Southern Oregon and far northern California remain under west to southwest flow aloft, with generally weak high pressure in control providing dry conditions and temperatures generally at or just above seasonal normals. Some residual high level clouds are still streaming over the area today, but for the most part, the skies are clear. Just offshore, however, satellite imagery shows a large area of clouds heading our way, and this is the next frontal system due to arrive tomorrow.

This trough will approach the area tomorrow, then split into a closed low as it moves onshore right along the CA/OR state line late Friday night into Saturday morning. This will put the main belt of moisture inflow into northern and central California, keeping most of our forecast area dry, with the exception of the coast and portions of Siskiyou and Modoc counties, but even then rainfall amounts will be very light, if measurable at all.
Despite the lack of rain, increased clouds and lower heights aloft will make for a cool Saturday across the forecast area.

After this low passes, we return to generally seasonable temperatures and dry weather under weak high pressure for early next week. Around Tuesday or Wednesday, the next trough arrives, and this one has a good chance to hold together enough to produce at least light rain for the majority, if not all, of the forecast area. The arrival of this system are generally well agreed upon throughout the model suites, actually arriving as two waves/fronts Wednesday and Thursday. There are some questions that need to be answered regarding strength of the event as it moves through, with a wide range of possibilities across those same suites. That being said, it does suggest that we will see an overall pattern change with the arrival of this system, trending towards a somewhat wetter and cooler pattern as we head into late next week.
-BPN
Show more