textproduct: San Diego
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
SYNOPSIS
Increased winds over the mountains and deserts this afternoon into Tuesday morning. A deep marine layer and well below average conditions will prevail through the middle of the week. A gradual warming is expected into the 4th of July holiday weekend, with conditions warming to near or slightly above normal by early next week.
..updated aviation and marine discussions
The overall pattern will remain troughy through Friday, with another shortwave expected to move through the mean flow tomorrow. This will increase the onshore pressure gradient, maintaining a deeper marine layer, elevating winds, and maintaining below average temperatures. Additionally, patchy drizzle is possible tonight into Tuesday morning. Peak winds for the mountains, deserts, and passes this afternoon into Tuesday morning will be 35 to 50 mph. Gusts up to 60 mph possible through San Gorgonio Pass.
Conditions will gradually warm each day through the holiday weekend, but highs through Wednesday for inland areas will be 10 to 20 degrees below average. For the 4th of July there is more confidence in weak ridging developing over the US West Coast, with more uncertainty in the strength and placement of the ridge into early next week. Even with ridging aloft this weekend, highs in and west of the mountains will be 1 to 5 degrees below average, with highs in the deserts up to 3 degrees above average.
The marine layer will stay deep through mid-week becoming shallower and more confined to the coast and western valleys for Friday into early next week.
Mountains/Deserts
Winds with gusts 20-40 kts with local gusts to 50 kts through mountain passes and locally into deserts. Winds slowly weaken after 06Z. Very similar winds increasing after 22Z Tuesday in the same areas.
MARINE
No hazardous marine conditions are expected through Saturday.
SKYWARN
Skywarn activation is not requested. However weather spotters are encouraged to report significant weather conditions.
SGX WATCHES/WARNINGS/ADVISORIES
CA...None. PZ...None.
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