San Mateo Point CA to the Mexican Border and out 30 NM Marine Forecast
|Today...Wind E To 10 Kt...Becoming Nw In The Afternoon. Wind Waves 2 Ft Or Less. Swell Nw 1 To 2 Ft At 12 Seconds.|
|Tonight...Wind Nw 10 Kt In The Evening...Becoming Variable Less Than 10 Kt. Wind Waves 2 Ft Or Less. Swell Nw 1 To 2 Ft At 13 Seconds.|
|Sun...Wind Variable Less Than 10 Kt...Becoming Nw To 10 Kt In The Afternoon. Wind Waves 2 Ft Or Less. Swell W 1 To 2 Ft At 14 Seconds.|
|Sun Night...Wind Nw To 10 Kt In The Evening... Becoming Variable Less Than 10 Kt. Wind Waves 2 Ft Or Less. Swell W 1 To 2 Ft At 14 Seconds.|
|Mon...Wind Variable Less Than 10 Kt...Becoming Nw 10 Kt With Gusts To 15 Kt In The Afternoon. Wind Waves 2 Ft Or Less. Swell W 2 To 3 Ft At 13 Seconds.|
|Mon Night...Wind N 10 Kt With Gusts To 15 Kt In The Evening... Becoming Variable Less Than 10 Kt. Wind Waves 2 Ft Or Less. Swell W 1 To 2 Ft.|
|Tue...Wind Variable Less Than 10 Kt. Wind Waves 2 Ft Or Less. Swell W 2 To 3 Ft.|
|Tue Night...Wind Nw 10 Kt In The Evening... Becoming Variable Less Than 10 Kt. Wind Waves 2 Ft Or Less. Swell W 2 To 3 Ft.|
|Wed...Wind Variable Less Than 10 Kt. Wind Waves 2 Ft Or Less. Swell W 2 Ft.|
|Wed Night...Wind Variable Less Than 10 Kt...Becoming Ne 10 Kt After Midnight. Wind Waves 2 Ft Or Less. Swell W 2 Ft.|
| 137 AM PST Sat Nov 28 2020 |
Synopsis for the far southern California coast - PZZ700
At 2 AM a 1034 mb high was over the Great Basin and a 1021 mb low was over the Southern California Bight. Periods of gusty Santa Ana winds, from the northeast, will continue at times into Saturday morning. Weak offshore flow will prevail at times through the weekend. Lighter onshore flow will return for early next week, but winds will occasionally shift back to offshore overnight and in the mornings each day through next week.
| Area Forecast Discussion|
National Weather Service San Diego CA
221am PST Sat Nov 28 2020
Locally gusty northeast winds will continue below the passes and on the coastal slopes morning. Weak offshore flow will continue early next week, along with high pressure aloft to bring warmer days, but continued chilly nigheights with patchy frost in wind- sheltered locations valleys. Another Santa Ana wind event is possible towards the middle of next week.
FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE... SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES... Skies are clear this morning. Locally gusty winds continue below the Cajon and San Gorgonio passes, the Santa Ana Mountains, and the San Diego County Mountains and inland valleys. Most gusts this morning are below 35 mph, with isolated gusts of 40 to 45 mph in San Diego County. Winds will continue through late morning, then weaken in the afternoon. In the wind-sheltered valleys, patchy frost is possible this morning. Highs today will be slightly below normal in the mountains and deserts, but around 3-8 degrees above normal for the coasts and valleys.
The warming trend continues into Monday as weak offshore flow prevails and a weak upper level ridge moves over the region. Offshore flow should remain just strong enough to keep any low clouds/fog from developing along the coast. Dry air and clear skies will mean chilly conditions and patchy frost for wind- sheltered locations each night. Aside from elevated fire danger due to breezy and dry conditions, the weather will otherwise be pretty benign into early next week.
Beyond Monday there is a bit of uncertainty, mainly concerning the timing and to lesser extent the strength of the next Santa Ana event. The EC ensemble, somewhat supported by the a handful of the Canadian Ensemble members, bring the next inside slider down into AZ/NM by next Tuesday into Wednesday, producing another moderate to locally strong Santa Ana. The GEFS is a bit slower and takes a completely different track with the digging trough, delaying the onset of stronger winds until late Wednesday into Thursday. It's evident that we will see an increase in northeast winds again sometime next week, with the potential for another period of critical fire weather conditions. Weaker offshore flow will prevail through the end of next week. No rain in sight.
No hazardous marine conditions expected through Wednesday.
Northeast to east winds with gusts 25 to 35 mph and local gusts to 45 mph will continue this morning below the passes and along the coastal slopes and foothills of the Santa Ana and San Diego County Mountains. Humidity recovery will be virtually non-existent for the windy locations this morning, generally remaining less than 20 percent. The Red Flag Warning for portions of the San Diego County Mountains and Valleys remains in effect through 9am this morning. Winds will gradually weaken during the late morning and afternoon.
Mostly weak offshore flow will prevail into early next week, with a slight increase every night and morning and weakening during the afternoons. Widespread daytime humidity of 9-15 percent is expected each day, with moderate to poor humidity recovery near the foothills each night. This will maintain elevated fire weather conditions into Monday. Another moderate to locally strong Santa Ana event and a period of critical fire weather conditions is possible towards the middle of next week. Timing is still uncertain, but it looks to be sometime between Tuesday and Thursday. Weaker offshore flow and elevated fire weather conditions are likely for late next week.
.SKYWARN... Skywarn activation is not requested. However weather spotters are encouraged to report significant weather conditions.
.SGX WATCHES/WARNINGS/ADVISORIES... CA...Red Flag Warning until 9am PST this morning for San Diego County Inland Valleys-San Diego County Mountains-Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest.