San Mateo Point CA to the Mexican Border and out 30 NM Marine Forecast
|Tonight...Wind S 10 Kt In The Evening...Becoming Variable Less Than 10 Kt. Wind Waves 2 Ft Or Less. Mixed Swell W 3 To 4 Ft At 11 Seconds And S 1 To 2 Ft At 13 Seconds.|
|Sun...Wind S 10 Kt. Wind Waves 2 Ft Or Less. Mixed Swell Sw 2 To 3 Ft At 10 Seconds And S 1 To 2 Ft At 13 Seconds.|
|Sun Night...Wind S 10 Kt. Wind Waves 2 Ft Or Less. Mixed Swell W 2 To 3 Ft At 10 Seconds And S 1 To 2 Ft At 13 Seconds.|
|Mon...Wind S 10 Kt. Wind Waves 2 Ft Or Less. Mixed Swell W 2 To 4 Ft At 10 Seconds And S 1 To 2 Ft At 14 Seconds.|
|Mon Night...Wind S 10 Kt In The Evening...Becoming Variable Less Than 10 Kt. Wind Waves 2 Ft Or Less. Mixed Swell W 2 To 3 Ft At 10 Seconds And S 2 Ft At 15 Seconds.|
|Tue...Wind Variable Less Than 10 Kt...Becoming Sw 10 Kt In The Afternoon. Wind Waves 2 Ft Or Less. Mixed Swell W 2 To 3 Ft And Sw 2 Ft.|
|Tue Night...Wind Variable Less Than 10 Kt. Wind Waves 2 Ft Or Less. Mixed Swell W 2 Ft And Sw 2 Ft.|
|Wed...Wind Variable Less Than 10 Kt...Becoming W 10 Kt With Gusts To 15 Kt In The Afternoon. Wind Waves 2 Ft Or Less... Becoming 3 Ft In The Afternoon. Mixed Swell W 2 Ft And Sw 2 To 3 Ft.|
|Wed Night...Wind Variable Less Than 10 Kt. Wind Waves 2 Ft Or Less. Mixed Swell W 2 Ft And S 3 Ft.|
|Thu...Wind Variable Less Than 10 Kt...Becoming W 10 Kt In The Afternoon. Wind Waves 2 Ft Or Less. Mixed Swell W 2 Ft And S 3 Ft.|
|Thu Night...Wind W 10 Kt In The Evening...Becoming Variable Less Than 10 Kt. Wind Waves 2 Ft Or Less. Mixed Swell W 2 Ft And S 3 Ft.|
| 133 PM PDT Sat May 8 2021 |
Synopsis for the far southern California coast - PZZ700
At 2 PM, a 1016 mb high was off the coast of northern Baja California, and a 1007 mb surface low was over Needles. A coastal eddy circulation will be present at times through Tuesday. Weak to moderate onshore flow will prevail through the forecast period. Night and morning low clouds and fog are expected, with only partial clearing expected each afternoon over the coastal waters.
| Area Forecast Discussion|
National Weather Service San Diego CA
205pm PDT Sat May 8 2021
Low pressure across the northern Rockies will maintain onshore flow with periods of gusty westerly winds over the mountains and deserts this weekend. Low clouds and patchy fog west of the mountains will be extensive nigheights and mornings clearing most inland areas for the afternoons. An area of high pressure will build over the Southwest Tuesday, bringing warmer weather through late next week, with a bit of cooling by next weekend once again.
FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES... Coastal low clouds have cleared from the beaches except for some patches of scattered low stratus. The marine layer remains healthy and will be conducive to help generate widespread low clouds and a Catalina Eddy once again, with clouds spreading into the valleys overnight probably towards midnight. Overall the onshore gradients are weaker than yesterday but gusty winds through the passes and deserts will continue though Sunday as the upper level trough remains situated over the area, this will cause the onshore gradients to pick up once again, with gusts around 40 mph at times in the deserts and possibly around 50 mph at times in the mountain passes. On Monday the onshore flow will lessen as the upper level troughiness begins to move out of our area. Coastal low clouds should begin to refrain from entering into the valleys as aggressively Sunday night and into Monday morning and especially into Tuesday morning, as there could be a brief period of weak Santa Ana winds Tuesday morning across the northern areas as well.
On Tuesday an upper level high pressure ridge over the Eastern Pacific and Baja Mexico will edge into SoCal. This will bring a pronounced warmup continuing into the end of next week. The pattern is fairly consistent with the ensemble mean forecasts not bringing much strengthening of the ridge so that temps will become above normal, but not likely to be excessively above normal. Temperatures in the lower deserts are still looking to peak Thursday and Friday between 100 to 105 degrees. The forecast looks a little more "up in the air" for next weekend with the ensembles suggesting less certainty in terms of the breaking down of the ridging pattern. The EC deterministic spins up a sharp negatively tilted trough which could bring strong winds to the area by next weekend, but confidence is low at this time, although most solutions are pointing to a breaking down of the upper level ridge to some extent. Otherwise, there are not other significant hazardous weather concerns beyond the drying out of the surface fuels and diurnally driven low RH in the passes and desert slopes, which will continue to occur, but with decent overnight recoveries.
No hazardous marine weather is expected through Thursday. 081540Z...Coast/Valleys...Low clouds with bases 1500-2500 ft MSL filled in most of the coastal basin overnight. Low clouds have begun to clear from east to west and will continue to clear through 18Z. Low clouds with bases 1500-2000 ft MSL will begin to return to the coast after 00Z, spreading into the coastal basin and reaching KONT/KSBD around 09Z.
Mountains/Deserts...Mostly clear with unrestricted visibility today.
.SKYWARN... Skywarn activation is not requested. However weather spotters are encouraged to report significant weather conditions.
.SGX WATCHES/WARNINGS/ADVISORIES... CA...NONE. PZ...NONE.