Saturday, April21, 2018 L-36.com


Marine Weather and Tides
Palm Valley, 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 7:58PM Saturday April 21, 2018 5:47 AM EDT (09:47 UTC) Moonrise 10:41AMMoonset 12:00AM Illumination 35% 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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AMZ452 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- 324 Am Edt Sat Apr 21 2018
.small craft advisory in effect through Monday afternoon...
Today..East northeast winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 7 seconds. Inland waters choppy. Scattered showers.
Tonight..East winds 20 to 25 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 7 seconds. Inland waters choppy. Showers likely after midnight.
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 in the morning. A slight chance of Thunderstorms. Showers likely in the afternoon.
Sunday night..East southeast winds 20 to 25 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 7 seconds. Inland waters choppy. Showers likely in the evening. A chance of Thunderstorms through the night. Showers after midnight.
Monday..Southeast winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Inland waters choppy. Showers and a chance of Thunderstorms.
Monday night..South winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters a moderate chop. Showers likely and a slight chance of Thunderstorms.
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 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..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- 324 Am Edt Sat Apr 21 2018
Synopsis.. Strong high pressure remains north of the area, and will keep breezy onshore winds through the weekend. An area of low pressure will track eastward across area from the northern gulf coast early next week and keep chances for scattered showers and storms through mid-week. Elevated winds and seas will continue through this period.

7 Day Forecast for Marine Location Near Palm Valley, FL
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location: 30.22, -81.39     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 210753
afdjax
area forecast discussion
national weather service jacksonville fl
353 am edt Sat apr 21 2018

High risk of rip currents through Saturday...

Near term (through tonight)
Scattered showers moving inland this morning will continue
traveling westward across northeast florida for most of the
morning. Overall coverage and rainfall will be pretty light and
low end chances will persist into the afternoon for northeast
florida and right along the florida georgia border. Temperatures
should be slightly warmer today as flow shifts more east
northeast, with highs near 70 at the beaches, and low to mid 70s
inland though it will still be somewhat breezy. Further north,
surface high pressure will continue building across the mid-
atlantic states and keep onshore flow in place. Weak upper level
ridge across the lower mississippi valley starting to break down
as an upper level low moves into the plains. Tonight low
temperatures will be pretty similar to this morning across
northeast florida (low to mid 60s), while inland southeast georgia
will be about 10 degrees warmer (upper 50s) as moisture and
dewpoints increase. After a brief reprieve in shower chances this
evening, rain chances will be on the rise on Sunday. Upper level
flow becomes more zonal, and flow shifts more southeast at the
surface as low pressure develops to the west.

Short term (Sunday night through Monday night)
Rain will become widespread with embedded storms Sunday night and
Monday morning as a warm front lifts north across the area. A few
strong storms will be possible Monday afternoon if enough instability
develops as models suggest. Upper divergence ahead of approaching
mid- upper low with an increasing moist southerly low level flow
will produce areas of locally heavy rainfall. Warm front and deep
moisture will shift to the north of the area by Monday evening
ending the heavy rain potential as drying occurs in the mid- upper
levels.

Long term (Tuesday through Friday)
A dry slot will wrap around the tn valley mid-upper low and move
across the area on Tuesday. Dry air arriving in the mid and upper
levels will lower pops to slight chance to chance category as a
cold front moves across SE ga NE fl. Wednesday will be a dry day
with seasonal temperatures as upper trough moves off the east
coast and dry air spreads over the se. Short wave troughs embedded
in a broad upper longwave trough over the east will bring a
slight chance of showers Thursday and again on Friday. Temperatures
will be near average through the period.

Aviation
Mainly solid MVFR ceilings are expected this morning, though there
could be some brief periods of ifr ceilings and visibility as
rain showers move inland. Northeast to east winds will continue,
near 10 knots inland but sustained closer to 15 knots with gusts
20-25 knots closer to the coast. Scattered showers are expected to
continue through the afternoon hours, and while cloudy skies will
prevail, bases should lift to low endVFR (030 to 050 feet) by
afternoon.

Marine
Onshore winds will continue as high pressure strengthens across
the mid-atlantic states. Nearshore waters may briefly drop below
small craft advisory criteria today, but winds and seas are
expected to increase again on Sunday so have left the advisory in
place across all waters for now. A low pressure system will
approach the area by the end of the weekend, and bring chances for
scattered showers and thunderstorms across the waters to start the
workweek. Elevated winds and seas are expected to continue into
mid-week.

Rip currents: high risk of rip currents at area beaches will
continue today. Georgia beaches may fall to moderate risk
tomorrow, but northeast florida beaches will likely continue a
high risk on Sunday.

Preliminary point temps pops
Amg 72 58 72 60 0 0 40 80
ssi 68 64 70 65 10 0 50 80
jax 70 63 75 63 50 30 60 70
sgj 70 65 74 64 50 50 50 70
gnv 75 63 77 64 50 70 60 60
ocf 78 64 80 63 20 60 50 50

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

Ga... High rip current risk through 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.

Elsenheimer zibura


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LTJF1 11 mi48 min 64°F 62°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 12 mi48 min NE 18 G 21 64°F 65°F1022.3 hPa (-1.0)
BLIF1 14 mi48 min NNE 9.9 G 15 64°F 1023.2 hPa (-1.0)64°F
JXUF1 15 mi48 min 68°F
DMSF1 15 mi48 min 66°F
41117 22 mi56 min 68°F8 ft
SAUF1 - St. Augustine, FL 26 mi48 min ESE 13 G 15 69°F 66°F1021.4 hPa (-0.8)
RCYF1 30 mi48 min 71°F
FRDF1 - 8720030 - Fernandina Beach, FL 32 mi48 min NNE 5.1 G 13 64°F 66°F1023.5 hPa (-1.0)
41112 - Offshore Fernandina Beach, FL (132) 34 mi48 min 66°F6 ft
GTXF1 - Guana Tolomato Matanzas Reserve, FL 40 mi63 min ESE 6 70°F 1023 hPa67°F

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Jacksonville Craig Municipal Airport, FL10 mi55 minNE 10 G 179.00 miOvercast64°F64°F100%1022.3 hPa
Mayport Naval Station - Adm David L. McDonald Field, FL12 mi56 minNNE 14 G 235.00 miFog/Mist64°F62°F93%1022 hPa
Jacksonville Naval Air Station, FL15 mi55 minNNE 138.00 miLight Rain64°F62°F93%1021.8 hPa
Northeast Florida Regional Airport, FL18 mi52 minE 119.00 miOvercast68°F64°F90%1021.6 hPa

Wind History from CRG (wind in knots)
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Last 24hrNE14
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1 day agoW8SW4SW6W9W9SW12W11
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W14SW9SW9SW8W5SW5SW3W5NE12
G18
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2 days agoW6W4SW4W5W5W8W10W7SW10SW8SW8
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SW12SW9SW7SW5SW6SW5SW5S4CalmSW3W5

Tide / Current Tables for Oak Landing, ICWW, Florida
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Oak Landing
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Sat -- 12:54 AM EDT     Moonset
Sat -- 03:45 AM EDT     4.88 feet High Tide
Sat -- 06:52 AM EDT     Sunrise
Sat -- 09:43 AM EDT     0.26 feet Low Tide
Sat -- 11:41 AM EDT     Moonrise
Sat -- 04:15 PM EDT     4.16 feet High Tide
Sat -- 07:57 PM EDT     Sunset
Sat -- 09:55 PM EDT     0.21 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.33.34.24.74.94.43.52.31.20.40.30.71.52.33.23.84.143.32.31.20.50.20.5

Tide / Current Tables for St. Johns River Entrance, Florida Current
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St. Johns River Entrance
Click for Map
Sat -- 12:01 AM EDT     2.55 knots Max Flood
Sat -- 12:55 AM EDT     Moonset
Sat -- 03:10 AM EDT     -0.01 knots Slack
Sat -- 05:42 AM EDT     -2.25 knots Max Ebb
Sat -- 06:51 AM EDT     Sunrise
Sat -- 10:10 AM EDT     0.00 knots Slack
Sat -- 11:41 AM EDT     Moonrise
Sat -- 12:33 PM EDT     1.79 knots Max Flood
Sat -- 03:31 PM EDT     -0.00 knots Slack
Sat -- 06:05 PM EDT     -1.94 knots Max Ebb
Sat -- 07:57 PM EDT     Sunset
Sat -- 10:09 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.52.21.30.2-1.1-2.1-2.2-1.9-1.6-1-0.20.91.71.71.20.5-0.5-1.5-1.9-1.8-1.4-1-0.21

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 (5,6,7,8)
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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.