Sunday, August20, 2017 L-36.com


Marine Weather and Tides
Callahan, FL

Version 3.4
What's New / NOTES
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.
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.

Sunrise 6:55AMSunset 8:03PM Sunday August 20, 2017 3:42 AM EDT (07:42 UTC) Moonrise 4:37AMMoonset 6:24PM Illumination 4% Phase: Waning Crescent; Moon at 28 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- 240 Am Edt Sun Aug 20 2017
Today..Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop. A chance of showers and Thunderstorms in the afternoon.
Tonight..Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop. A chance of showers and Thunderstorms.
Monday..East southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop. A chance of showers and Thunderstorms in the morning, then a slight chance of showers and Thunderstorms in the afternoon.
Monday night..Southeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters a light chop. A slight chance of showers and Thunderstorms in the evening.
Tuesday..East southeast winds 5 to 10 knots. Seas 2 to 4 feet. Inland waters a light chop.
Tuesday night..Southeast winds 5 to 10 knots becoming south southwest after midnight. Seas 2 to 4 feet. Inland waters a light chop.
Wednesday..South southeast winds 5 to 10 knots. Seas 2 to 3 feet. Inland waters a light chop. A chance of showers and Thunderstorms.
Wednesday night..South southwest winds 5 to 10 knots. Seas 2 to 3 feet. Inland waters a light chop. A chance of showers and Thunderstorms.
Thursday..South winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a light chop. A chance of showers and Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 240 Am Edt Sun Aug 20 2017
Synopsis.. High pressure ridge axis will shift to the north through early week. A cold front will move push into the southeast in the middle of the week.

7 Day Forecast for Marine Location Near Callahan, FL
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location: 30.56, -81.74     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 200727
afdjax
area forecast discussion
national weather service jacksonville fl
327 am edt Sun aug 20 2017

Near term (today and tonight)
Mid and upper level ridge will build into S ga today from the
east. This feature along with the subsident side of a tropical
wave off the SE fl coast will mean slightly lower rain chances
today especially over SE ga. Expect scattered showers and storms
shifting inland this afternoon as the east coast seabreeze moves
well inland. Humid conditions with above normal temperatures will
continue. Showers may return to the east coast late tonight due to
a deepening moist SE flow.

Short term (Monday and Tuesday)
Confidence is still low that we will have optimal viewing
conditions for Monday's eclipse. To start the morning, ongoing
showers and thunderstorms will move onshore or very near the
coast as the upper level ridge as it nudges westward. Onshore
flow combined with this feature will keep chances for rain through
the morning hours, or at best, convective debris clouds.

Conditions will start improving later in the day as upper level
ridge moves in, though newly formed convection as the seabreeze
moves slightly inland will probably keep lingering cloudiness
around a good portion of the area. Tuesday will feature a drier
day over most of the area with the upper level ridge centered
across the southeast, and onshore flow continues as surface high
pressure moves further north across the atlantic. Highest chance
pops (30-40%) are across southeast georgia where any lingering
shortwave energy may remain.

Long term (Wednesday through Sunday)
Upper level ridging will be short-lived as the base of a deep
upper level trough across the northeast pushes southward. Expect
another fairly dry day on Wednesday before a stormier pattern
develops in the wake of a cold front that stalls out across
georgia. Plenty of moisture, courtesy of an approaching tropical
wave, will increase pops by Thursday. Weak surface troughing will
remain across much of the southeast through the end of the
workweek and will keep pops higher into the first part of the
weekend as a surface low develops.

Aviation
Vfr conditions expected to prevail this morning. Vcts at taf
sites this afternoon with best chance at gnv as east coast
seabreeze moves well inland.

Marine
Surface ridge axis will shift north of the area today
resulting in an easterly flow. The surface ridge will remain
northeast of the region through Tuesday. A frontal boundary will
then shift into the southeast by the middle of the week and the
ridge will shift back to the south.

Rip currents: low risk today and Monday.

Preliminary point temps pops
Amg 95 74 92 74 40 10 40 10
ssi 90 78 87 78 20 30 50 20
jax 92 75 89 75 30 30 50 20
sgj 90 74 87 77 50 40 40 10
gnv 93 73 90 74 30 10 40 10
ocf 93 74 90 74 30 10 40 10

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... None.

Zibura elsenheimer


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NFDF1 13 mi43 min SSW 1.9 G 4.1 81°F 1016.5 hPa (+0.0)75°F
DMSF1 15 mi43 min 87°F
JXUF1 16 mi43 min 86°F
BLIF1 16 mi43 min S 4.1 G 6 80°F 1016.5 hPa (-0.4)79°F
FRDF1 - 8720030 - Fernandina Beach, FL 17 mi43 min Calm G 2.9 79°F 85°F1016.4 hPa (+0.0)
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 20 mi43 min S 2.9 G 5.1 80°F 86°F1015.9 hPa (-0.4)
LTJF1 20 mi43 min 80°F 75°F
41112 - Offshore Fernandina Beach, FL (132) 26 mi43 min 84°F3 ft
BKBF1 26 mi43 min SSE 6 G 8 82°F 88°F
SAUF1 - St. Augustine, FL 55 mi43 min SSW 6 G 7 81°F 83°F1015.9 hPa (-0.5)76°F
SAXG1 - Sapelo Island Reserve, GA 64 mi103 min Calm 82°F 1016 hPa (+1.0)79°F

Wind History for Fernandina Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Jacksonville International Airport, FL5 mi47 minN 010.00 miFair75°F75°F100%1015.5 hPa
Fernandina Beach Municipal Airport, FL15 mi68 minSW 410.00 miFair79°F73°F84%1015.6 hPa
Jacksonville Craig Municipal Airport, FL20 mi50 minSSE 510.00 miFair76°F73°F94%1015.5 hPa
Mayport Naval Station - Adm David L. McDonald Field, FL20 mi51 minS 610.00 miFair79°F75°F88%1015.4 hPa
Jacksonville Naval Air Station, FL23 mi1.8 hrsS 510.00 miFair82°F75°F82%1015.5 hPa

Wind History from JAX (wind in knots)
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Last 24hrCalmCalmS3CalmS4SW4SW5SW6Calm4NE5NW3SE63SE8SE5CalmCalmSW5S3W4S3CalmCalm
1 day agoCalmW3CalmS4S4SW3CalmCalmNE9E11E8S11N12W6W14CalmCalmSW3S5W5SW3SW6W5S3
2 days agoW3SW3CalmW3SW3W6NW34W6CalmE7S9SW8
G17
SW4W5S6SW3CalmCalmW4SW4SW6S4Calm

Tide / Current Tables for Boggy Creek, 2 mi. above entrance, Florida
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Boggy Creek
Click for Map
Sun -- 05:37 AM EDT     Moonrise
Sun -- 05:44 AM EDT     -0.39 feet Low Tide
Sun -- 06:56 AM EDT     Sunrise
Sun -- 11:45 AM EDT     3.19 feet High Tide
Sun -- 05:56 PM EDT     -0.80 feet Low Tide
Sun -- 07:23 PM EDT     Moonset
Sun -- 08:02 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.63.12.31.30.4-0.2-0.40.10.81.72.53.13.22.82.11.20.2-0.5-0.8-0.40.41.52.53.3

Tide / Current Tables for St. Johns River Entrance, Florida Current
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St. Johns River Entrance
Click for Map
Sun -- 12:13 AM EDT     -2.32 knots Max Ebb
Sun -- 04:06 AM EDT     0.00 knots Slack
Sun -- 05:36 AM EDT     Moonrise
Sun -- 06:40 AM EDT     1.98 knots Max Flood
Sun -- 06:55 AM EDT     Sunrise
Sun -- 09:36 AM EDT     -0.00 knots Slack
Sun -- 12:27 PM EDT     -2.35 knots Max Ebb
Sun -- 04:11 PM EDT     0.00 knots Slack
Sun -- 07:03 PM EDT     2.80 knots Max Flood
Sun -- 07:22 PM EDT     Moonset
Sun -- 08:01 PM EDT     Sunset
Sun -- 10:14 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-2.3-2.3-1.9-1.2-0.11.11.921.60.8-0.6-1.8-2.3-2.3-2.1-1.4-0.31.22.42.82.61.80.4-1.2

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Jacksonville, FL (3,6,7,8)
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Ground Weather Radar Station Jacksonville, FL
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weather_mapweather_map weather_map

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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.