National Weather Service Forecast for: Laguna Beach CA Issued by: National Weather Service San Diego, CA

Updated: 12:56 pm PDT May 18, 2024

Laguna+Niguel, CA

Tonight Low: 53 °F Sunday High: 63 °F Sunday Night Low: 54 °F Monday High: 62 °F Monday Night Low: 52 °F Tuesday High: 63 °F Tuesday Night Low: 54 °F Wednesday High: 64 °F Wednesday Night Low: 54 °F Patchy Drizzle and Patchy Fog Patchy Drizzle and Patchy Fog then Partly Sunny Patchy Drizzle Patchy Drizzle then Partly Sunny Mostly Cloudy Partly Sunny Partly Cloudy Mostly Sunny Mostly Cloudy

Forecast from NOAA-NWS for Laguna Beach CA.

764
FXUS66 KSGX 190417
AFDSGX

Area Forecast Discussion
National Weather Service San Diego CA
915 PM PDT Sat May 18 2024

.SYNOPSIS...
A persistent trough over the West Coast through next week will keep
temperatures a little below average and generate gusty mountain and
desert winds each afternoon. Night and morning marine layer clouds
will retreat back to the coast each afternoon.

&&

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

Low clouds cleared back to the coastal waters early today due to a
shallower marine layer and a weaker inversion. This evening they
were starting to move back inland. At 9 PM the low clouds surged
back into coastal San Diego County from Camp Pendleton to La Jolla,
but San Diego was still mostly clear. The clouds will spread into
the valleys overnight. The 00Z NKX sounding showed a marine layer
depth near 2000 feet.

Longwave troughing over the West Coast will continue through next
week. On Sunday and Monday an embedded shortwave in the longwave
trough will move across the Great Basin and bring a burst of gusty
northwest winds to SoCal Mountains and deserts each afternoon and
evening. It will also bring a cooler airmass into the Southwest, and
Monday will be the coolest day of the week with highs in the low 60s
near the coast, near 70 in the inland valleys, the 50s in the
mountains, the 70s in the high deserts, and near 90 in the lower
deserts. Areas of drizzle in the deep marine layer are likely west
of the mountains Monday morning.

After the trough axis passes, heights rise slightly for warmer days
Tuesday and Wednesday. Then another shortwave digging down the West
Coast will bring a few degrees of cooling Thursday and Friday.

&&

.AVIATION...
190400Z...Coast/Valleys... BKN/OVC low clouds will continue to
expand this evening, reaching most areas by 08Z Sun with bases 1300-
1900 ft MSL and tops to 2400 ft MSL and higher terrain obscured.
Below the cloud deck vis will mostly be unrestricted. Local -DZ
could occur 10Z-16Z Sun. Clearing Sun will occur 16Z-19Z in the
valleys and 18Z-21Z near the coast with some locations within 5
miles of the coast having BKN CIGs continuing after 21Z Sun. Low
clouds will spread rapidly inland Sun evening.

Mountains/Deserts... Clear skies with unrestricted VIS will prevail
through Sun evening. Areas of W-SW winds with gusts 30-45 kt from
the mountain crests east through the desert slopes and into the
deserts will continue at times through Sun evening, accompanied by
MOD UDDFS and LLWS over/E of the mtns.

&&

.MARINE...
No hazardous marine conditions are expected through Thursday.

&&

.BEACHES...
A series of southwest swells of 2-3 ft at 16-18 seconds from 200-220
degrees will build through Sunday and continue through Tuesday,
producing above normal surf of 3-5 ft with locally higher sets on
exposed SW facing beaches, as well as a high risk of rip currents at
all beaches. Swell and surf will slowly lower Wednesday and Thursday.

&&

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

&&

$$

PUBLIC...Moede
AVIATION/MARINE/BEACHES...Maxwell

NWS SGX Office Area Forecast Discussion