Saturday, April21, 2018 L-36.com


Marine Weather and Tides
Crescent Beach, FL

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.

Sunrise 6:49AMSunset 7:56PM Saturday April 21, 2018 3:28 AM EDT (07:28 UTC) Moonrise 10:42AMMoonset 12:00AM Illumination 34% Phase: Waxing Crescent; Moon at 6 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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AMZ454 Coastal Waters From Altamaha Sound To Fernandina Beach Fl Out 20 Nm- Coastal Waters From Fernandina Beach To St. Augustine Fl Out 20 Nm- Coastal Waters From St. Augustine To Flagler Beach Fl Out 20 Nm- 854 Pm Edt Fri Apr 20 2018
.small craft advisory in effect through Monday afternoon...
Rest of tonight..East northeast winds 20 to 25 knots with an occasional gust to around 35 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 6 seconds. Inland waters rough. A chance of showers.
Saturday..East northeast winds 15 to 25 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 7 seconds. Inland waters choppy. A chance of showers.
Saturday night..East winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 7 seconds. Inland waters choppy. A chance of showers through the night.
Sunday..East winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 7 seconds. Inland waters choppy. A chance of showers.
Sunday night..East southeast winds 15 to 20 knots. Seas 6 to 8 feet with occasional seas up to 10 feet. Inland waters choppy. Showers and isolated Thunderstorms.
Monday..South southeast winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Inland waters choppy. Showers and isolated Thunderstorms.
Monday night..South southwest winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters a light chop. Showers likely.
Tuesday..South southwest winds 5 to 10 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Tuesday night..West southwest winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a moderate chop.
Wednesday..West southwest winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a light chop.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 854 Pm Edt Fri Apr 20 2018
Synopsis.. Strong high pressure will be to the north tonight, then to the northeast over the weekend. An area of low pressure will track eastward across area from the northern gulf coast early next week. This low will be to the north toward the middle of next week. Elevated winds and seas will continue through this period.

7 Day Forecast for Marine Location Near Crescent Beach, FL
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location: 29.72, -81.24     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 210139
afdjax
area forecast discussion
national weather service jacksonville fl
939 pm edt Fri apr 20 2018

Update
Strong high pressure continues to the north of the area while
prevailing moderate northeast to east sfc winds are over the
forecast region. Jax sounding shows veering with height until
strong inversion at 8000 ft. Area of showers per radar imagery
extends from near crescent beach northeastward well into the jax
offshore coastal waters. Combination of the low level moisture
and upper level trough over the ERN gulf of mexico, and increasing
isentropic ascent will produce shower activity over the atlantic
waters moving into the coastal areas late tonight and into
Saturday. Models are not doing a good job with the current radar
trends but appears that the area convection will tend to weaken
somewhat as it approaches the coast tonight. However... Guidance
suggests shower activity will be able push into the coastal zones
and a bit further inland as well as a bit further northwest
overnight into the jax metro area. Have tweaked pops rest of the
tonight and will also allow the wind advisory to expire by 10 pm
as the winds are generally expected to decrease overnight along
the coast just below advisory levels.

Aviation
MVFR conditions will continue throughout the night along with
winds out of the northeast. Gustier winds will be noted for crg
and sgj. Potential for rainfall is expected for gnv and sgj after
midnight and ceilings for ssi should remain near high-end MVFR to
low endVFR until the morning.

Marine
Current forecast on track with minor changes to increase
the winds and seas in the forecast grids based on observations.

Sca on track through the weekend.

Rip currents: high risk through Saturday due to moderate to strong
northeast flow and rough surf.

Preliminary point temps pops
Amg 50 73 56 72 0 0 20 40
ssi 60 69 62 69 0 10 20 50
jax 59 71 62 74 20 40 30 50
sgj 64 72 63 74 40 50 30 50
gnv 59 76 62 77 10 50 30 60
ocf 61 79 62 80 20 50 30 60

Jax watches warnings advisories
Fl... High rip current risk through Saturday evening for coastal duval-
coastal nassau-flagler-st. Johns.

Wind advisory until 10 pm edt this evening for coastal duval-
coastal nassau-flagler-inland duval-inland nassau-st. Johns.

Ga... High rip current risk through Saturday evening for coastal
camden-coastal glynn.

Wind advisory until 10 pm edt this evening for coastal camden-
coastal glynn.

Am... Small craft advisory until 5 am edt Tuesday for waters from
altamaha sound ga to fernandina beach fl from 20 to 60 nm-
waters from fernandina beach to st. Augustine fl from 20 to
60 nm-waters from st. Augustine to flagler beach fl from 20
to 60 nm.

Small craft advisory until 4 pm edt Monday for coastal waters
from altamaha sound to fernandina beach fl out 20 nm-
coastal waters from fernandina beach to st. Augustine fl
out 20 nm-coastal waters from st. Augustine to flagler
beach fl out 20 nm.

Shashy corless peterson


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
GTXF1 - Guana Tolomato Matanzas Reserve, FL 4 mi104 min NNW 4.1 68°F 1024 hPa66°F
SAUF1 - St. Augustine, FL 10 mi29 min E 11 G 12 69°F 66°F1021.3 hPa (-1.5)
RCYF1 17 mi41 min 71°F
41117 21 mi37 min 68°F8 ft
LTJF1 47 mi59 min 65°F 60°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 48 mi41 min NE 19 G 23 65°F1022.7 hPa
JXUF1 48 mi41 min 68°F
BLIF1 49 mi41 min NNE 12 G 17 1023.6 hPa
DMSF1 49 mi41 min 67°F

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Northeast Florida Regional Airport, FL18 mi33 minNE 139.00 miLight Rain66°F64°F96%1021.4 hPa

Wind History from SGJ (wind in knots)
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Last 24hrN8N15
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N12--N14N18
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NE13N9NE13
1 day agoSW6SW4W4W5SW5SW6SW10SW11
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SW9SW6SW4SW7W8W7W6W6W3
2 days agoW6SW4W4SW3CalmW5SW7W7SW8W73SE11SE12S116SE4S5S3SW3SW3W5S4SW5S7

Tide / Current Tables for Fort Matanzas, Matanzas River, ICWW, Florida
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Fort Matanzas
Click for Map
Sat -- 12:52 AM EDT     Moonset
Sat -- 01:33 AM EDT     4.66 feet High Tide
Sat -- 06:52 AM EDT     Sunrise
Sat -- 08:29 AM EDT     0.31 feet Low Tide
Sat -- 11:42 AM EDT     Moonrise
Sat -- 02:03 PM EDT     3.97 feet High Tide
Sat -- 07:55 PM EDT     Sunset
Sat -- 08:41 PM EDT     0.24 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
44.64.64.33.52.51.60.80.40.41.122.93.743.83.32.51.60.80.40.30.91.9

Tide / Current Tables for Bings Landing, Matanzas River, Florida
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Bings Landing
Click for Map
Sat -- 12:52 AM EDT     Moonset
Sat -- 04:02 AM EDT     1.61 feet High Tide
Sat -- 06:52 AM EDT     Sunrise
Sat -- 10:51 AM EDT     0.01 feet Low Tide
Sat -- 11:42 AM EDT     Moonrise
Sat -- 04:16 PM EDT     1.16 feet High Tide
Sat -- 07:55 PM EDT     Sunset
Sat -- 10:45 PM EDT     -0.14 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.511.31.51.61.51.310.70.40.100.20.50.81.11.21.10.90.60.30.1-0.1-0.1

Weather Map and Satellite Images
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wmap_A
GOES Local Image of Southeast    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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Jacksonville, FL (3,6,7,8)
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Ground Weather Radar Station Jacksonville, FL
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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.