Wednesday, June3, 2020
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Marine Weather and Tides
Lompoc, CA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 5:48AMSunset 8:11PM Tuesday June 2, 2020 11:38 PM PDT (06:38 UTC) Moonrise 3:56PMMoonset 2:45AM Illumination 92% Phase: Waxing Gibbous; Moon at 12 days in cycle
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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PZZ673 Waters From Pt. Sal To Santa Cruz Island Ca And Westward 60 Nm Including San Miguel And Santa Rosa Islands- 838 Pm Pdt Tue Jun 2 2020
.small craft advisory in effect until 3 am pdt Wednesday...
Tonight..NW winds 15 to 20 kt with gusts to 25 kt, becoming 10 to 15 kt with local gusts to 20 kt overnight. Strongest around point conception. Combined seas 5 to 6 ft dominant period 9 seconds. Patchy dense fog with vsby 1 nm or less after midnight.
Wed..NW winds 10 to 15 kt with gusts to 20 kt. Wind waves 1 to 3 ft. Mixed swell nw 4 to 5 ft at 9 seconds and S 3 ft at 16 seconds.
Wed night..NW winds 10 to 20 kt. Wind waves 2 to 3 ft. NW swell 5 to 7 ft at 8 seconds.
Thu..Northwestern portion, nw winds 15 to 25 kt becoming 10 to 15 kt in the afternoon. Elsewhere, nw winds 5 to 10 kt becoming ne in the afternoon. Wind waves 1 to 3 ft. NW swell 5 to 6 ft at 8 seconds.
Thu night..NW winds 5 to 10 kt. Wind waves 2 ft or less. NW swell 5 to 7 ft at 9 seconds.
Fri..NW winds 10 to 15 kt. Wind waves 1 to 3 ft. NW swell 6 to 7 ft at 11 seconds.
Fri night..NW winds 15 to 20 kt with gusts to 25 kt. Combined seas 7 to 9 ft dominant period 12 seconds.
Sat..NW winds 15 to 25 kt with gusts to 35 kt. Combined seas 7 to 10 ft.
Sun..NW winds 25 to 30 kt with gusts to 45 kt. Combined seas 9 to 12 ft.
PZZ600 838 Pm Pdt Tue Jun 2 2020
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 03z, or 8 pm pdt, a 1028 mb high pressure system was centered about 900 nm west of san francisco bay and a 1006 mb thermal low was centered near the california-arizona border.


7 Day Forecast for Marine Location Near Lompoc, CA
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location: 34.38, -120.53     debug


Area Discussion for - Los Angeles/Oxnard, CA
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FXUS66 KLOX 030617 AFDLOX

Area Forecast Discussion . UPDATED National Weather Service Los Angeles/Oxnard CA 1117 PM PDT Tue Jun 2 2020

SYNOPSIS. 02/815 PM.

Areas of coastal clouds are expected tonight into tomorrow morning, High pressure builds in tomorrow, clearing clouds over the south and bringing warm temperatures for most locations. There is also a chance of isolated thunderstorms for the northern interior mountains tomorrow. Temperatures cool Thursday and Friday as onshore flow and the marine layer returns.

SHORT TERM (TUE-FRI). 02/903 PM.

***UPDATE***

Rather mild evening across southern CA due to high-level subtropical moisture and clouds streaming overhead that originate from a low pressure system approximately 475 miles to our southwest. Temperatures are currently 8-15 degrees warmer than 24-hours ago mainly over western Santa Barbara and San Luis Obispo Counties. Have raised overnight lows there several degrees as onshore pressure gradients will remain fairly light and cloud cover is a factor tonight. No other significant issues today with the exception of some cumulus that developed for a few hours over the northeast Santa Barbara Mountains and Cuyama Valley foothills.

There is an organized cyclonic cloud band peeling away from the low pressure area to our south and this feature shows up in model data for Wednesday. It appears to keep mid and high clouds rather abundant in the morning then more and more sunshine will be likely during the afternoon hours. This also allows more heating to occur for all areas with tomorrow being the hottest day of the week, many highs in the 80s not far from the ocean and 90s to near 100 degrees for inland valleys. There are steep lapse rates (8.6C/kg) over the mountains late Wednesday afternoon with a focus of CAPE over 1100 j/kg and -5 LI's over the northwest Ventura Co. to eastern SLO Co. Mountains. PWAT's are above the 90th percentile for this time of the year while HREF, HRRR, NBM, and latest NAM all support PoPs and light QPF. Have added isolated thunderstorms to the forecast and inverted-v soundings support idea of high- based convection capable of downburst winds if anvils can reach the equilibrium level. Given the hot temperatures and dry low levels, this could be a rare dry lightning threat with potential for grass fires late tomorrow afternoon.

***From Previous Discussion***

An upper low to our southwest continues to usher in a steady stream of high clouds into the area and this is expected to continue through early Wednesday. At that point models are anticipating a significant reduction in humidities aloft as this part of the system detaches from the upper low and moves into the Great Basin. The decrease in high clouds will team up with the warmer air mass and relatively light onshore flow to bring us the warmest temperatures of the week with coastal valleys in the 90s to around 101 and inland coastal areas in the mid to high 80s. Most of the records tomorrow are well out of reach (downtown LA 99, Woodland Hills 106, Paso Robles 109) but Santa Maria at 85 is only a few degrees above the current forecast.

The warm up will be short-lived as an eddy will spin up Thursday and onshore flow will increase. Low clouds will start to develop in the morning and spread as far north as Santa Barbara, then by Friday low clouds will cover all the coastal zones up through SLO County and some of the coastal valleys. Friday afternoon the onshore flow is expected to reach 10mb (LAX-DAG) almost 8mb SBA- BFL so it will be a slow (at best) clearing day for coastal areas. Temps most areas Thursday will drop several degrees, though far interior areas like interior SLO County and the Antelope Valley will be just slightly cooler. More significant cooling Friday with most areas dropping to a couple degrees below normal. There's a small chance of some drizzle or light rain Friday, mainly northern areas but amounts would be under a tenth and likely barely measurable in most areas. The deterministic runs are about 24 hours later with this feature associated with a trough in the Pac NW but it's low impact either way.

LONG TERM (SAT-TUE). 02/219 PM.

The weekend will be dominated by moderate northwest flow with wind advisories likely for srn SB County and the I5 corridor each evening through Monday. A broad upper level trough west of the Rockies will keep temps below normal Saturday but under generally clear skies. The trough will remain in place through early next week but will weaken and allow temps to climb slightly Sunday and more so Monday as gradients turn offshore. The ECMWF is faster bringing a ridge in from the west Tuesday while the GFS keeps a baggy trough along the West Coast most of the week. The EC solution is supported by a majority of the GFS ensembles so the warmer solution seems to be the way to go. Both models are showing the offshore gradients, though the EC is definitely stronger with -5mb (LAX-DAG) on Tuesday so there is the potential for some northeast winds both Monday and Tuesday, though it's unclear how much upper support there will be. A few of the EC ensembles are showing 30-40mph gusts in Camarillo next Tuesday but this would be considered an outlier solution. Better odds of a decent warm up for early to mid week with the potential for a significant heat wave if the more aggressive EC solutions pan out.

AVIATION. 03/0616Z.

At 06Z, the marine layer depth was around 200 feet deep at KLAX. The top of the marine inversion was near 800 feet with a temperature near 22 degrees Celsius. There was another inversion up to around 2400 feet with a temperature around 24 degrees Celsius.

Moderate confidence in the current forecast. Higher confidence in inland terminals. Less confidence for coastal terminals. Middle and high level cloudiness could keep stratus from forming. There is a slight chance to chance of sub-VFR conditions (either LIFR conditions or MVFR visibilities) at coastal terminals between 08Z and 16Z. The best chance of sub-VFR conditions will be for terminals north of Point Conception. Otherwise, VFR conditions should prevail.

KLAX . There is a 30 percent chance of sub-VFR conditions (either LIFR conditions or MVFR visibilities) between 09Z and 16Z. Otherwise, VFR conditions should prevail.

KBUR . VFR conditions are expected through the period. There is a 30 percent chance that winds could westerly after 23Z.

MARINE. 02/859 PM.

For the Outer Waters, moderate to high confidence in current forecast. Small Craft Advisory (SCA) level winds are marginal across PZZ673/676 this evening and should continue to decrease late tonight. For Wednesday through Friday, there is a 30% chance of SCA level winds across all the Outer Waters. For Saturday and Sunday, high confidence in SCA level winds and seas with a 30% chance of Gale force winds.

For the Inner Waters north of Point Sal, moderate to high confidence in current forecast. High confidence in winds and seas remaining below SCA levels through Friday. For Saturday and Sunday, high confidence in SCA level winds, especially during the afternoon and evening hours, with a 20% chance of Gale force winds.

For the Inner Waters south of Point Conception, moderate to high confidence in current forecast. High confidence in winds and seas remaining below SCA levels through Friday. On Saturday and Sunday, there is a 60% chance of SCA level winds, especially across western sections.

LOX WATCHES/WARNINGS/ADVISORIES. CA . NONE. PZ . Small Craft Advisory in effect until 3 AM PDT Wednesday for zones 673-676. (See LAXMWWLOX).

.HAZARD POTENTIAL OUTLOOK (FRI-TUE).

Gusty northwest winds are possible in southern SB County and the I5 corridor and Antelope Valley Saturday through Monday.



PUBLIC . EB/MW AVIATION . Hall MARINE . EB SYNOPSIS . MW/Phillips

weather.gov/losangeles


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46054 - SANTA BARBARA W 38 NM West of Santa Barbara, CA 8 mi38 min W 12 G 14 58°F 1015.1 hPa (+0.4)55°F
HRVC1 10 mi50 min 1015.3 hPa
46218 - Harvest, CA (071) 14 mi38 min 58°F6 ft
PTGC1 - Point Arguello, CA 15 mi38 min N 22 G 23 58°F 1014.3 hPa (-0.4)
46053 - E. SANTA BARBARA - 12NM Southwest of Santa Barbara, CA 38 mi28 min Calm G 1.9 58°F 60°F1015.3 hPa58°F
NTBC1 - Santa Barbara, CA - 9411340 44 mi62 min Calm G 1.9 61°F 1015.6 hPa
46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA 47 mi38 min WNW 5.8 G 7.8 1015.6 hPa

Wind History for Santa Barbara, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lompoc, Lompoc Airport, CA20 mi42 minN 09.00 miFair60°F55°F86%1015.6 hPa

Link to 5 minute data for KLPC

Wind History from LPC (wind in knots)
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Last 24hrNW4NW4CalmNW4W7CalmW3CalmCalmSE33W7W8W10W13W11W9W9W10W9W5W3W3Calm
1 day agoCalmCalmN3N3NW7NW5NW4CalmW5W9W10W12
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2 days agoCalmNW4NW5NW4CalmNW4NW3NW53W10NW9W10W6NW6W10W8W10--NW9W11NW7W6W6W4

Tide / Current Tables for Gaviota, California
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Gaviota
Click for Map
Wed -- 03:01 AM PDT     -0.51 feet Low Tide
Wed -- 04:20 AM PDT     Moonset
Wed -- 05:48 AM PDT     Sunrise
Wed -- 09:11 AM PDT     3.97 feet High Tide
Wed -- 02:26 PM PDT     1.05 feet Low Tide
Wed -- 06:05 PM PDT     Moonrise
Wed -- 08:09 PM PDT     Sunset
Wed -- 08:50 PM PDT     6.27 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.10.8-0.2-0.5-0.20.61.72.83.643.83.22.41.61.11.11.72.745.266.35.84.7

Tide / Current Tables for Cuyler Harbor, San Miguel Island, California
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Cuyler Harbor
Click for Map
Wed -- 02:58 AM PDT     -0.50 feet Low Tide
Wed -- 04:21 AM PDT     Moonset
Wed -- 05:50 AM PDT     Sunrise
Wed -- 09:05 AM PDT     3.89 feet High Tide
Wed -- 02:23 PM PDT     1.03 feet Low Tide
Wed -- 06:05 PM PDT     Moonrise
Wed -- 08:09 PM PDT     Sunset
Wed -- 08:44 PM PDT     6.14 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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20.7-0.2-0.5-0.20.61.72.83.63.93.73.12.31.51.11.11.72.845.266.15.64.5

Weather Map
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GEOS Local Image of Southwest    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Wind Forecast for Los Angeles/Oxnard, CA (2,6,7,8)
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Ground Weather Radar Station Vandenberg AFB, CA
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