Pismo Beach, CA Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Pismo Beach, CA

June 20, 2024 12:44 PM PDT (19:44 UTC) Change Location
Sunrise 5:46 AM   Sunset 8:21 PM
Moonrise 6:38 PM   Moonset 3:16 AM 
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NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

Marine Forecasts
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PZZ645 Point Piedras Blancas To Point Sal Westward Out To 10 Nm- 835 Am Pdt Thu Jun 20 2024

Rest of today - NW wind 10 to 15 kt, becoming 15 to 25 kt this afternoon. Seas 4 to 5 ft. Wave detail: nw 5 ft at 7 seconds and S 2 ft at 15 seconds. Patchy fog late this morning.

Tonight - NW wind 10 to 20 kt. Seas 5 to 7 ft. Wave detail: nw 6 ft at 7 seconds and S 2 ft at 15 seconds. Patchy fog.

Fri - NW wind 10 to 20 kt. Seas 5 to 6 ft. Wave detail: nw 6 ft at 8 seconds and S 2 ft at 14 seconds. Patchy fog in the morning.

Fri night - NW wind 10 to 20 kt, becoming 5 to 10 kt after midnight. Seas 4 to 5 ft. Wave detail: nw 5 ft at 9 seconds and S 2 ft at 14 seconds.

Sat - Light winds. Seas 4 to 5 ft. Wave detail: nw 4 ft at 9 seconds and S 2 ft at 13 seconds. Patchy fog in the morning.

Sat night - Light winds. Seas 3 to 5 ft. Wave detail: nw 4 ft at 9 seconds and S 2 ft at 14 seconds. Patchy fog after midnight.

Sun - Light winds, becoming nw 5 to 10 kt in the afternoon. Seas 3 to 5 ft. Wave detail: nw 4 ft at 8 seconds and S 2 ft at 15 seconds. Patchy fog in the morning.

Sun night - NW wind 5 to 10 kt in the evening, becoming light. Seas 4 to 5 ft. Wave detail: nw 4 ft at 8 seconds and S 2 ft at 15 seconds. Patchy fog after midnight.

Mon - Light winds, becoming nw 5 to 10 kt in the afternoon. Seas 4 to 5 ft. Wave detail: nw 5 ft at 11 seconds and S 2 ft at 14 seconds. Patchy fog in the morning.

Mon night - NW wind 5 to 10 kt. Seas 4 to 6 ft. Wave detail: nw 5 ft at 11 seconds and S 2 ft at 15 seconds. Patchy fog after midnight.

PZZ600 835 Am Pdt Thu Jun 20 2024

Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park - At 15z, or 8 am pdt, a 1029 mb high was located 1700 nm nw of point conception and a 1003 mb thermal low was near las vegas, ca. Hazardous marine conditions with gusty nw winds and steep seas will affect much of the outer waters and the western santa barbara channel through Thu night.


7 Day Forecast for Marine Location Near Pismo Beach, CA
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Area Discussion for - Los Angeles/Oxnard, CA
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FXUS66 KLOX 201548 AFDLOX

Area Forecast Discussion...UPDATED National Weather Service Los Angeles/Oxnard CA 848 AM PDT Thu Jun 20 2024

SYNOPSIS
20/827 AM.

Some low clouds and fog will linger along the coast and valley areas today. Temperatures will trend upwards each day into the weekend, as high pressure builds aloft. Above normal temperatures expected Friday into early next week, especially for areas away from the coasts. Dangerously hot conditions are possible this weekend, especially for the mountain areas and Antelope Valley.

.SHORT TERM (TDY-SAT)...20/835 AM.

***UPDATE***

Have added an excessive heat watch for the Los Angeles, Ventura, and interior Santa Barbara County Mountains for Saturday morning to Sunday evening. Antelope Valley will be in the 100s, but not likely to reach EHW conditions. Temperatures are up a degree or two along the south coast today with less extensive marine clouds and less onshore flow. No impactful changes from the previous discussion.

***From Previous Discussion***

The upper level pattern currently features weakening trough over the region. Heights will gradually trend upwards throughout the day. Gradients are trending less onshore, thus marine layer clouds will struggle to make it into much of coastal LA County this morning, and daytime clearing will be rapid. Gusty Sundowner Winds will continue early this morning across southwestern Santa Barbara County, and the wind advisory has been extended through 5 AM PDT. Currently, Refugio and Gaviota RAWS stations report northerly winds gusting around 50 mph. The Summer Solstice will occur at 151 PM PDT today, marking the day of the year with the maximum amount of daylight hours. This extensive sunshine will allow for very warm conditions this week for areas that are unaffected by marine layer stratus or seabreezes. Temperatures today will mostly be within 5 degrees warmer than normal, but will increase compared to yesterday by around 4 to 8 degrees for inland areas, as a result of reduced onshore flow and cloud cover, and increasing heights.

Upper level heights will rise rapidly on Friday, as a broad region of high pressure nudges into the area from the east.
Additionally, onshore pressure gradients at the surface will continue to trend downwards. Marine layer clouds will struggle to develop overnight, and clearing will again be very good during the day. Daytime highs will trend upwards by around 2 to 6 degrees, with highs ranging from 100-105 degrees across the Antelope Valley, in the low 80s to low 90s across the valleys, and in the upper 90s for Paso Robles.

Saturday will be the peak of the heat for many inland locations, as the high pressure settles over the region, due to a stationary high pressure centered over the central southern United States. Pressure gradients will trend less onshore from the west, but more onshore from the south. This will likely result in shallow marine layer status overnight. However with a very strong temperature inversion capping the marine layer, enforced by the very warm airmass, low clouds may cling to the beaches all day. This will create a large temperature difference between the beaches and inland valleys. The Antelope Valley is expected to see highs from 103-108, coastal and interior valleys will be in the mid 80s to upper 90s, and inland coastal areas will be in the 80s. Only the beaches will stay in the upper 60s to mid 70s. There is around a 60% chance of a heat advisory for the Ventura and LA County Mountains, and 25% chance of an excessive heat warming for the Antelope Valley and foothills. The atmosphere is expected to be on the dry side Saturday, but as the overall flow becomes more favorable for monsoonal moisture, there is around a 10% chance of a significant amount of precipitable water entering the region from the southeast which would lead to some afternoon convection.

.LONG TERM (SUN-WED)...20/334 AM.

Through the extended period, the region will continue to be under the western portion of strong high pressure centered over Arizona and New Mexico. With overall little changes in the upper level pattern, weather conditions will each day will be similar.
Temperatures will be much cooler at the beaches, with very warm- to-hot interior temperatures.

However, highs are likely to trend slightly downwards for the interior, Sunday and Monday. This is a reflection of increasing precipitable water in the atmosphere that will dampen daytime heating. With the center of high pressure settling over the desert southwest, the flow over the region will support the transport of monsoonal moisture from the southeast. PWAT will increase quickly on Sunday, and the NAEFS forecast values for PW are in the 90th to 99th percentile over Los Angeles County much of the time Sunday through Tuesday. This moisture will serve to cool daytime highs, however conditions will be more humid and overnight lows will be on the warm side. There is a small (10-20%) chance of afternoon showers/thunderstorms over the mountains and Antelope Valley, with the highest chances on Sunday at this time.

While high hieghts will remain though the extended period, the center of the high pressure will migrate to the west by Wednesday.
This will change the positioning of the anticyclonic flow, and will stifle the stream of mositure into the region.

AVIATION
20/1300Z.

At 1115Z at KLAX, the marine layer was 1400 feet deep. The top of the inversion was at 4500 ft with a temperature of 20 deg C.

High confidence in TAFs for KSBA, KVNY, KBUR, KPMD and KWJF.

Good confidence in TAFs for KOXR and KCMA with only a 20 percent chc of IFR cigs 14Z-17Z.

Moderate confidence in TAFs for KSMX and KSBP. VFR transition may be an hour later than fcst.

Moderate confidence in TAFs for KLAX, KSMO and KLGB. VFR transition may be an hour later than fcst. There is a 30 percent chc of no cigs tonight.

KLAX...Moderate confidence in TAF. There is a 30 percent chc BKN015 conds hanging on until 18Z. There is a 30 percent chc of no cigs tonight. Any east wind component should be less than 5 knots.

KBUR...High confidence in TAF.

MARINE
20/222 AM.

For the Outer Waters, high confidence in current forecast. Small Craft Advisory (SCA) winds are expected through Friday night.
Brief lulls in the winds during the mornings hours are possible.
Seas will be steep and choppy through Friday night. Conditions are then expected to be below SCA levels Saturday through Monday night.

For the Inner Waters north of Point Sal, moderate to high confidence in current forecast. There will be a slight lull in SCA winds and choppy seas this morning but they will reform this afternoon and persist through the evening. For Friday through Monday night, winds and seas should remain below SCA levels.

For the inner waters south of Point Conception, moderate confidence in current forecast. SCA conditions will be confined to the western third of the Santa Barbara Channel. Winds should remain below SCA levels for the waters south of Point Mugu, but will be stronger over western portions of zone PZZ655. Local winds near SCA levels are possible again Friday for western portions of the Santa Barbara Channel and near Santa Cruz Island. Winds and seas should remain below SCA levels over the weekend.

LOX WATCHES/WARNINGS/ADVISORIES
CA...Excessive Heat Watch in effect from Saturday morning through Sunday evening for zones 353-376>382. (See LAXNPWLOX).
PZ...Small Craft Advisory in effect until 3 AM PDT Friday for zone 650. (See LAXMWWLOX).
Small Craft Advisory in effect until 3 AM PDT Saturday for zones 670-673-676. (See LAXMWWLOX).




Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
CPXC1 10 mi47 minESE 1.9 59°F 29.9052°F
PSLC1 - 9412110 - Port San Luis, CA 10 mi57 minSSE 4.1G6 59°F 53°F29.89
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 13 mi45 minNW 18G21 53°F
46215 - Diablo Canyon, CA (076) 13 mi49 min 54°F4 ft
MBXC1 24 mi55 min 52°F
46218 - Harvest, CA (071) 40 mi49 min 53°F6 ft
46259 42 mi49 min 55°F5 ft


Wind History for Port San Luis, CA
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Airport Reports
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Wind History graph: SBP
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Tide / Current for Avila, California
   
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Avila
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Thu -- 04:04 AM PDT     -3.55 feet Low Tide
Thu -- 04:15 AM PDT     Moonset
Thu -- 05:48 AM PDT     Sunrise
Thu -- 10:47 AM PDT     0.50 feet High Tide
Thu -- 02:25 PM PDT     -0.23 feet Low Tide
Thu -- 07:39 PM PDT     Moonrise
Thu -- 08:20 PM PDT     Sunset
Thu -- 08:56 PM PDT     3.60 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Avila, California, Tide feet
12
am
0.2
1
am
-1.2
2
am
-2.4
3
am
-3.2
4
am
-3.6
5
am
-3.3
6
am
-2.6
7
am
-1.7
8
am
-0.8
9
am
-0
10
am
0.4
11
am
0.5
12
pm
0.3
1
pm
0
2
pm
-0.2
3
pm
-0.2
4
pm
0.2
5
pm
0.8
6
pm
1.7
7
pm
2.7
8
pm
3.4
9
pm
3.6
10
pm
3.3
11
pm
2.4


Tide / Current for Port San Luis, Pacific Ocean, California
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Port San Luis, Pacific Ocean, California, Tide feet


Weather Map
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GEOS Local Image of Southwest   
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Vandenberg AFB, CA,




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