Marine Weather and Tide Forecast for Newport Beach, CA

DISCUSSION
FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES...

Satellite shows that extensive cloud cover remains with slow clearing from south to north. Parts of Riverside and Orange counties will struggle to clear today, but clouds should retreat to the coast by the late afternoon. Sunny skies and increasing winds out of the west over the next several hours, calming later tongiht. Heights fall through Saturday as a trough off the coast of Canada becomes a cutoff low and moves southward into California. With the falling heights, the marine layer deepens the next few mornings, making it further inland each day and allowing morning drizzle to occur, especially for the coastal areas and valleys. Temperatures also respond, with highs falling substantially by Friday and Saturday, generally 5-20 degrees below normal for the end of April. Gusty west winds develop each afternoon and evening as the gradient tightens this week, with gusts up to 40 mph in the deserts and mountains and localized areas of gusts up to 55 mph through the mountain passes, peaking both Friday and Saturday afternoons. Some areas of blowing dust will be possible, especially in the deserts.

The latest model runs have slowed the progression of the aforementioned low and brought it a smidge further south on Saturday, indicating slightly higher precipitation chances than previous runs, now around 20-25% for the mountains. While POPs have increased, QPF unfortunately remains fairly low with limited moisture and energy to tap in to. Right now the best chances for accumulating rainfall will be for the areas further north, especially the higher terrain, where up to 0.10-0.15" is possible through Saturday night.

As the low moves up into Nevada on Sunday, highs warm a few degrees but will remain well below normal. By Monday, weak upper level ridging starts to build in, with temperatures quickly warming through mid week and highs return to near or slightly above normal by Tuesday.

AVIATION
232030Z
Coasts/Valleys/Coastal Mountain Slopes
Slow clearing will continue this afternoon for parts of Orange County and the Inland Empire with bases near 3,000 ft MSL. Clouds spread will back ashore after 00-03Z Thursday with similar bases and inland extent. Clouds clearing again 16-19Z Friday, though locally BKN near the coast.

Otherwise...Mostly clear through Wednesday.

MARINE
No hazardous marine conditions are expected through Sunday.

BEACHES
Elevated surf of 4 to 6 feet with sets to 7 feet possible from Saturday through Monday with strong rip currents expected.

SGX WATCHES/WARNINGS/ADVISORIES
CA...None.
PZ...None.