Tuesday, May23, 2017 L-36.com


Marine Weather and Tides
Imperial Beach, CA

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 5:43AMSunset 7:47PM Tuesday May 23, 2017 1:46 AM PDT (08:46 UTC) Moonrise 4:21AMMoonset 5:32PM Illumination 6% Phase: Waning Crescent; Moon at 27 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
    EDIT      (on/off)   Help
PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 122 Pm Pdt Mon May 22 2017
Tonight..Wind nw 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. Mixed swell W 2 ft at 10 seconds and S 2 to 3 ft at 15 seconds. Areas of dense fog with vsby 1 nm or less after midnight.
Tue..Wind nw 10 kt with gusts to 15 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft at 10 seconds and S 2 to 3 ft at 14 seconds. Areas of dense fog with vsby 1 nm or less in the morning.
Tue night..Wind W to 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. Mixed swell W 1 ft at 9 seconds and sw 2 to 3 ft at 14 seconds.
Wed..Wind W to 10 kt...becoming 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 1 ft at 11 seconds and sw 2 to 3 ft at 16 seconds.
Wed night..Wind W 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft at 13 seconds and sw 2 to 3 ft at 16 seconds.
Thu..Wind variable less than 10 kt...becoming W 10 kt with gusts to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and sw 2 ft.
Thu night..Wind W 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and sw 2 ft. Slight chance of showers after midnight.
Fri..Wind variable less than 10 kt...becoming W 10 kt with gusts to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and sw 2 ft. Slight chance of showers in the morning.
Fri night..Wind nw 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. Mixed swell W 1 ft and sw 2 ft.
Sat..Wind W 10 to 15 kt. Gusts to 20 kt in the afternoon. Wind waves 2 ft or less...becoming 3 ft in the afternoon. Mixed swell W 1 ft and sw 1 to 2 ft.
Sat night..Wind W 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and sw 1 ft.
PZZ700 122 Pm Pdt Mon May 22 2017
Synopsis for far southern california coast.. At 1 pm...a 1018 mb high was 70 nm west of the mendocino county coast and a 1008 mb low was 40 nm northwest of blythe. Dense fog will likely occur over the coastal waters tonight into Tuesday morning. Weak to moderate onshore flow will continue through Saturday...with northwest gusts to 20 kt possible in the outer waters each late afternoon and early evening.

7 Day Forecast for Marine Location Near Imperial Beach city, CA
   Hourly   EDIT   Help
location: 32.53, -117.14     debug


Area Discussion for - San Diego, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 ksgx 230419
afdsgx
area forecast discussion
national weather service san diego ca
919 pm pdt Mon may 22 2017

Synopsis
Another hot day is anticipated Tuesday as a ridge of high
pressure along the west coast stregthens slightly. The coachella
valley should see it's warmest day of the year with afternoon
highs in the 109-112 degree range. A sharp cooling trend will
arrive during the second half of the workweek as a trough of low
pressure traverses the region. Inland areas can expect afternoon
highs 10-20 degrees below seasonal averages by Friday. Quiet
weather and a weak cooling trend are forecast for the upcoming
weekend.

Discussion For extreme southwestern california including orange...

san diego... Western riverside and southwestern san bernardino
counties...

at 900 pm, weak ridging was in place over socal, with a shortwave
trough moving through the intermountain west. The trough was
bringing a quick burst of high clouds region. West of the
mountains the 00z nkx sounding indicated a marine layer with a
depth at or just below 1,000 ft msl. The marine layer stratus deck
was returning rapidly along the coast.

Tonight and Tuesday morning, the main concern will be areas of fog
within 10 miles of the coast. Compared to last night, the marine
layer is about 500 ft shallower. Given this, areas of dense fog
are possible over the coastal mesas, and along portions of
interstates 5, 8, 405, and 805 during the morning commute. At this
time confidence in widespread dense fog is to low for the
issuance of a dense fog advisory, will allow the overnight shift
to monitor/reevaluate with the morning forecast package. Any fog
that develops is expected to lift by 9 am.

For Tuesday afternoon, the focus shifts to another day of
unseasonably hot conditions, as the ridge along the west coast
stregthens. Inland areas will receive the brunt of the heat, with
afternoon highs forecast to be 8-16 degrees above seasonal
averages. The coast will be shielded by a shallow marine layer.

This will be the hottest day of the year thus far in the coachella
valley, where afternoon highs will be in the the 109-112 range.

An excessive heat warning was considered, but not issued due to
the short duration of this event.

A cooling trend will arrive for the second half of the workweek as
a weak shortwave trough undercuts the ridge of high pressure
along the west coast. By Friday, inland temperatures will fall to
10-18 degrees below seasonal averages, a 10-25 degree drop from
Tuesday's highs. Outside of the welcome decline in temperatures,
there are two other features to keep and eye on during the second
half of the week. The first feature is a weak impulse that will
rotate around the base of the trough Wednesday afternoon. Model
guidance suggests very modest CAPE of 100-500 j/kg, mainly for
the san gabriel mtns and points north. This could bring a few
afternoon cumulus buildups for these areas and potentially the san
bernardino mtns if the track shifts slightly southeast. The
second feature will be the main shortwave as it moves inland,
producing a rapidly deepening of the marine layer Thursday night
into Friday morning. At this time sub 850 moisture and marine
layer depth look sufficient for a few light sprinkles/drizzle
during this period. Gusty winds will also develop Thursday and
Friday for the deserts slopes and deserts, with wind advisory
strength winds possible.

Next weekend, weak ridging is forecast to return over california
during this period. For our area this will bring a warming trend
and shallower/less persistent marine layer. By Sunday afternoon
temperatures should be near seasonal averages under fair skies.

Aviation
230325z... Coast/valleys... Stratus with bases 600-800 ft msl filling
in along the coast through 06z then spreading 10-15 sm inland
overnight. Bases may lower to around 300-500 ft msl by morning,
producing widespread vis of 5sm or less along the coast and areas of
vis 1/2 sm or less over higher coastal terrain and on coastal mesas,
including at kcrq. Stratus clearing to the immediate coast 17-19z,
with low clouds lingering along the beaches through the afternoon.

Stratus may return to ksan and kcrq at times 21-02z, though
confidence is low. Stratus spreading back inland after 24/02z with
bases near 500-800 ft msl.

Mountains/deserts... Sct clouds AOA 20000 ft msl and unrestricted
vis through Tue evening.

Marine
A shallower marine layer may bring locally dense fog with visibility
near 1 nm to the coastal waters tonight into Tuesday morning, and
possibly again Tuesday evening.

Sgx watches/warnings/advisories
Ca... None.

Pz... None.

Public... Albright
aviation/marine... Ss


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TIXC1 - Tijuana River Reserve, CA 3 mi61 min WSW 1 60°F 1016 hPa58°F
IIWC1 - 9410172 - USS Midway South Navy Pier, San Diego, CA 13 mi70 min NNW 5.1 G 6 60°F
SDBC1 - 9410170 - San Diego, CA 13 mi46 min 70°F1015 hPa (+0.0)
46232 - Point Loma South, CA (191) 15 mi35 min 65°F4 ft
LJAC1 - 9410230 - La Jolla, CA 24 mi46 min NNW 4.1 G 5.1 64°F 64°F1014.2 hPa (+0.0)
LJPC1 - La Jolla, CA (073) 24 mi86 min NNW 2.9 2 ft
46258 24 mi46 min 65°F4 ft
46254 24 mi58 min 68°F2 ft
46225 - Torrey Pines Outer, CA (100) 31 mi55 min 65°F3 ft
46224 - Oceanside Offshore, CA (045) 48 mi46 min 65°F4 ft
46086 - San Clemente Basin 48 mi56 min WNW 9.7 G 14 56°F 62°F4 ft1014.7 hPa (+0.0)

Wind History for USS MIDWAY South Navy Pier, San Diego, CA
(wind in knots)    EDIT      (on/off)   Help
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
Last
24hr
NW3
N2
NW4
W6
G9
NW4
W4
W5
W7
W6
W9
W9
W10
W10
W10
NW11
W11
NW10
W9
NW8
NW5
W4
NW6
NW4
N3
1 day
ago
E3
--
NW3
NW1
N3
NW1
W2
W2
W4
W5
NW5
W9
W7
W8
W7
W8
W7
W5
W5
W5
W4
W1
W1
NW3
2 days
ago
N1
E1
--
N3
W4
NW9
NW10
NW12
G15
NW13
NW16
G20
NW17
G21
NW13
W11
W9
NW5
W5
W4
--
W2
N3
--

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Imperial Beach, Naval Auxiliary Landing Field, CA4 mi50 minN 010.00 miOvercast60°F57°F90%1015 hPa
San Diego, Brown Field Municipal Airport, CA9 mi53 minN 03.00 miFog/Mist59°F57°F96%1014.4 hPa
San Diego, North Island, Naval Air Station, CA12 mi54 minWNW 410.00 miOvercast62°F57°F84%1014.6 hPa
San Diego, San Diego International-Lindbergh Field, CA14 mi55 minN 310.00 miOvercast63°F59°F87%1015.3 hPa
San Diego, Montgomery Field, CA21 mi53 minNNW 44.00 miFog/Mist60°F55°F86%1014.5 hPa
San Diego/El Cajon, Gillespie Field Airport, CA23 mi71 minWNW 510.00 miFair59°F55°F88%1014.9 hPa
San Diego, Miramar MCAS/Mitscher Field Airport, CA24 mi51 minVar 33.00 miFog/Mist63°F57°F81%1014.2 hPa

Wind History from NRS (wind in knots)
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
Last 24hr----------NW7NW6NW5W6W7W11W12W11W13W11W11W10W8NW6W5W3W6NW5Calm
1 day ago------------------------------------------------
2 days ago------------------------------------------------

Tide / Current Tables for Imperial Beach, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Imperial Beach
Click for Map
Tue -- 02:21 AM PDT     -0.36 feet Low Tide
Tue -- 04:20 AM PDT     Moonrise
Tue -- 05:45 AM PDT     Sunrise
Tue -- 08:28 AM PDT     4.35 feet High Tide
Tue -- 02:01 PM PDT     0.55 feet Low Tide
Tue -- 05:31 PM PDT     Moonset
Tue -- 07:45 PM PDT     Sunset
Tue -- 08:24 PM PDT     6.21 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.40.2-0.3-0.20.51.52.73.74.34.33.72.71.70.90.60.81.734.45.56.16.15.23.8

Tide / Current Tables for San Diego Bay Entrance, California Current
   EDIT      (on/off)   Help   One Week of Data
San Diego Bay Entrance
Click for Map
Tue -- 02:50 AM PDT     0.00 knots Slack
Tue -- 04:21 AM PDT     Moonrise
Tue -- 05:45 AM PDT     Sunrise
Tue -- 05:49 AM PDT     1.65 knots Max Flood
Tue -- 08:45 AM PDT     -0.00 knots Slack
Tue -- 11:37 AM PDT     -1.74 knots Max Ebb
Tue -- 02:29 PM PDT     0.00 knots Slack
Tue -- 05:31 PM PDT     Moonset
Tue -- 05:45 PM PDT     1.98 knots Max Flood
Tue -- 07:46 PM PDT     Sunset
Tue -- 08:46 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-2.2-1.6-0.80.211.51.61.40.7-0.2-1.1-1.6-1.7-1.3-0.50.51.31.821.60.8-0.3-1.4-2.2

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of Southwest    EDIT
Geos

Wind Forecast for San Diego, CA (4,6,7,8)
      (on/off)   Help

Ground Weather Radar Station San Diego, CA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.