Sunday, March26, 2017 L-36.com


Marine Weather and Tides
Fernandina Beach, FL

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 7:19AMSunset 7:43PM Sunday March 26, 2017 7:13 AM EDT (11:13 UTC) Moonrise 5:30AMMoonset 5:23PM Illumination 1% 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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AMZ450 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- 400 Am Edt Sun Mar 26 2017
Today..East southeast winds around 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 8 seconds. Inland waters a light chop.
Tonight..Southeast winds 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 9 seconds. Inland waters mostly smooth.
Monday..East southeast winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 10 seconds. Inland waters smooth.
Monday night..South southwest winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 10 seconds. Inland waters a light chop.
Tuesday..Southwest winds 5 to 10 knots becoming south southeast 10 to 15 knots in the afternoon. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a light chop.
Tuesday night..South winds 10 to 15 knots becoming west southwest 5 to 10 knots after midnight. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a light chop.
Wednesday and Wednesday night..South winds 5 to 10 knots. Seas 2 to 4 feet. Inland waters mostly smooth.
Thursday..Southeast winds 5 to 10 knots. Seas 2 to 4 feet. Inland waters a light chop. A slight chance of showers and Thunderstorms.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 400 Am Edt Sun Mar 26 2017
Synopsis.. High pressure centered just offshore of the mid-atlantic coast today will slowly move southeast through early next week. Onshore winds will continue through Monday then become more south by Tuesday. A weak cold front is forecast to enter southeast georgia on Wednesday and stall. The front will lift back north as a warm front late in the week.

7 Day Forecast for Marine Location Near Fernandina Beach, FL
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location: 30.67, -81.47     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 260832
afdjax
area forecast discussion
national weather service jacksonville fl
430 am edt Sun mar 26 2017

Short term
Short range guidance continues to show a fairly well-defined
shortwave passing through our region today while gradually
weakening. A narrow ribbon of deeper moisture with pwats near 1.3
inches will accompany this feature with the best lift fairly weak
occurring during the first half of today. Have continued with
chance pops for mainly interior areas with best chances during the
midday hours and aftn. Low level forcing mainly comes from aftn
sea breeze from west and east coasts and daytime heating. Not much
instabilty to work with and CAPE values are noted generally in
the 300-600 j/kg range with MAX values maybe near 1000 j/kg. This
is lower than yesterday model output and so have paired back the
mention of tstms a bit and just have isold mention in the aftn.

Considerable clouds are expected today with most of the cloudiness
associated with the shortwave trough which is strongest over se
ga. High temps near 80 inland and upper 70s at the coast.

Tonight... Lingering isold weak convection expected inland areas
before dissipating by midnight. Mild overnight lows as the sfc
ridge remains just south and east of the area keeping a warm
southeast to south low level flow. Skies will be mostly clear to
partly cloudy. Lows from about 55-60 deg. Light winds and
clearing skies after midnight may result in patchy fog with
locally low vsby conditions.

Monday... Low level ridge axis moves a bit northward and generally
south to southeast low level winds expected. Weak upper level
ridging in the morning will give way as a weak shortwave trough
moves in during the aftn. Used consensus pops of about 20 percent
for possible isold showers or a thunderstorm in the aftn due to
aftn heating and sea breezes once again from both east and west
coasts. Highs may push a deg or so higher owing to less cloud
cover so aftn instability will be a bit higher.

A shortwave trough will progress eastward from the mid-mississippi
valley on Monday afternoon through the ohio and tennessee valleys on
Monday night. A weak vorticity lobe at the base of this trough will
migrate through georgia through Monday evening, which may keep
isolated convection going through the early evening hours over our
western counties. Otherwise, our low level flow will veer from
southerly to southwesterly overnight, which may advect low stratus
ceilings into northeast and north central fl from the gulf of mexico
towards sunrise on Tuesday. Lows will only fall to the upper 50s and
lower 60s.

Zonal flow will develop locally on Tuesday as the shortwave trough
bypasses our region well to the north. Weak shortwave energy
traveling within this w/nw flow pattern aloft combined with the
presence of a weak stalled frontal boundary north of the altamaha
river may trigger isolated to widely scattered diurnal convection
over inland southeast ga, mainly for locations north and west of
waycross. Meanwhile, heights aloft will begin to rise during the
afternoon as low and mid level expands northeastward from the gulf
of mexico. This weather pattern will allow highs to soar into the
mid 80s inland, with an afternoon sea breeze keeping coastal highs
in the upper 70s. Warm conditions will prevail Tuesday night, with
low clouds and fog again a possibility over much of the area as
southwest flow prevails. Lows again will only fall to the upper 50s
and lower 60s.

Long term
A potent deep-layered trough will dig from the desert southwest
through the southern plains states on Wednesday. Mostly zonal flow
aloft will prevail locally, with a weak shortwave trough progressing
across ga during the afternoon hours. This weak trough and the
presence of a stalled frontal boundary over central or southern ga
may be enough to trigger isolated diurnal convection, mainly for
locations from interstate 10 northward. Weak low and mid-level
ridging will remain in place over the fl peninsula, keeping a warm
sw wind regime in place. Highs will climb to the upper 80s for
inland locations. A loose local pressure gradient will promote early
afternoon sea breezes along the atlantic coast, which will again
keep highs closer to 80 for the beaches. Any lingering convection
will dissipate shortly after sunset for inland southeast ga, with
fog and low cloud development a good possibility for much of our
region by the predawn hours on Thursday, as lows again fall to the
upper 50s and lower 60s.

Deep troughing will progress slowly eastward from the southern
plains states through the mississippi valley on Thursday. W/sw flow
in the mid and upper levels will strengthen downstream of this
trough for our area. A stalled frontal boundary will remain in place
over central ga, with a loose local pressure gradient resulting in
sea breeze development during the afternoon hours along the gulf and
atlantic coasts. These sea breezes will move inland by late
afternoon, with just enough moisture in place to support widely
scattered convective development for locations north of interstate
10, with isolated diurnal activity possible during the late
afternoon along the st. Johns river basin in northeast fl. Hot
temperatures will continue inland, as highs reach the upper 80s,
with the afternoon sea breeze again keeping coastal highs closer to
80. Any lingering convection will again quickly wane on Thursday
evening, with low stratus and fog possibly developing during the
predawn hours on Friday, with lows only in the 60-65 range area-wide.

Deep-layered ridging will remain anchored near the bahamas later
this week, which will likely deflect the potent shortwave trough
northeastward from the mississippi valley northeastward into the
tennessee and ohio valleys. A surface low will accelerate
northeastward through the ohio valley on Friday, dragging a cold
front eastward through the fl panhandle and western ga by the
afternoon hours. Model blends indicate widely scattered convection
developing over most our our region on Friday afternoon, except only
isolated coverage for coastal northeast fl. Despite increasing
cloudiness, highs will still reach the low to mid 80s inland, with
sea breezes keeping coastal highs in the upper 70s.

The cold front will then likely stall over or just west of our
region on Friday night and Saturday as the mid/upper trough
progresses into the mid-atlantic states and new england. Convection
will wane on Friday evening, with above normal temperatures
prevailing through next weekend. Some weak shortwave energy
traveling within a zonal flow pattern aloft locally could trigger
isolated diurnal convection over north central fl on Saturday. Highs
will generally climb to the mid 80s inland, with the afternoon sea
breeze keeping coastal highs in the upper 70s. Lows will continue to
only fall to the upper 50s and lower 60s next weekend.

Aviation PrevailingVFR though some ifr vsby at usual vqq
terminal through about 11z and occasional MVFR to ifr at gnv through
12z. Winds will pick up from the east and southeast near 8-12 knots
by mid to late morning.VFR CIGS today due to a disturbance moving
through the area. Pops are generally 20 percent or less at the
terminals and did not feel that it's warranted at this time to
include vcsh wording.

Marine East to southeast winds at or below 15 knots expected
through Monday and will become more southerly by Tuesday as sfc
ridge drifts south of the area. A weak cold front will enter
southeast ga by Wednesday and lift back north later in the week.

Wind-seas are a bit elevated due to swell component near 3 ft with
periods of about 8-10 seconds. Scec for seas will be continued
for the offshore waters today with seas of about 4-6 ft.

Rip currents: mainly moderate risk through Monday due to the
swell activity.

Preliminary point temps/pops
Amg 81 60 82 59 / 50 20 20 20
ssi 73 61 75 60 / 20 10 10 10
jax 80 60 80 60 / 20 10 10 10
sgj 78 61 79 62 / 10 10 10 0
gnv 82 57 82 58 / 30 20 20 10
ocf 82 58 82 58 / 20 20 10 0

Jax watches/warnings/advisories
Fl... None.

Ga... None.

Am... None.

Shashy/nelson


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FRDF1 - 8720030 - Fernandina Beach, FL 0 mi43 min E 1.9 G 1.9 63°F 66°F1021.3 hPa
41112 - Offshore Fernandina Beach, FL (132) 10 mi43 min 64°F4 ft
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 19 mi43 min ENE 1 G 1.9 64°F 66°F1020.8 hPa
BLIF1 19 mi43 min ENE 2.9 G 4.1 64°F 1021.1 hPa63°F
LTJF1 20 mi43 min 65°F 62°F
DMSF1 20 mi43 min 67°F
NFDF1 20 mi43 min NE 1 G 1.9 64°F 1020.9 hPa
JXUF1 23 mi43 min 67°F
BKBF1 35 mi43 min NE 1 G 1.9 61°F 68°F
SAXG1 - Sapelo Island Reserve, GA 53 mi73 min ESE 2.9 59°F 1021 hPa (+0.0)58°F
SAUF1 - St. Augustine, FL 57 mi73 min Calm G 1 64°F 67°F1021.3 hPa (-0.0)

Wind History for Fernandina Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fernandina Beach Municipal Airport, FL4 mi38 minN 05.00 miPartly Cloudy61°F59°F94%1020.3 hPa
Jacksonville, Jacksonville International Airport, FL17 mi17 minN 010.00 miA Few Clouds56°F55°F100%1020.5 hPa
Mayport, Mayport Naval Station, Adm David L. McDonald Field, FL19 mi21 minN 03.00 miFog/Mist63°F60°F90%1020.5 hPa
Jacksonville Craig Municipal Airport, FL24 mi20 minN 010.00 miA Few Clouds56°F55°F97%1020.5 hPa

Wind History from NRB (wind in knots)
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Last 24hrSE5E6E5E95E7SE10E10SE12E12SE11SE10SE12SE11SE9SE8SE7SE5SE5SE4CalmCalmCalmCalm
1 day agoE9E9E11E11E11E9E8E9E12E8E9E10E8E8E9E11E7SE3E5SE4SE4SE6SE8SE5
2 days agoNE10NE9E11E11
G18
NE10NE9NE9NE8NE8NE10NE12NE13NE14NE13NE10NE6E10E10E10E11E7NE8E6E10

Tide / Current Tables for Fernandina Beach, Amelia River, Florida
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Fernandina Beach
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Sun -- 01:50 AM EDT     -0.26 feet Low Tide
Sun -- 06:29 AM EDT     Moonrise
Sun -- 07:21 AM EDT     Sunrise
Sun -- 08:25 AM EDT     6.55 feet High Tide
Sun -- 02:19 PM EDT     -0.41 feet Low Tide
Sun -- 06:23 PM EDT     Moonset
Sun -- 07:41 PM EDT     Sunset
Sun -- 08:42 PM EDT     6.64 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.20.1-0.20.41.73.24.75.86.56.45.53.92.10.5-0.4-0.20.92.54.25.66.46.65.94.4

Tide / Current Tables for St. Johns River Entrance, Florida Current
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St. Johns River Entrance
Click for Map
Sun -- 03:59 AM EDT     0.00 knots Slack
Sun -- 06:28 AM EDT     Moonrise
Sun -- 06:38 AM EDT     2.19 knots Max Flood
Sun -- 07:21 AM EDT     Sunrise
Sun -- 09:49 AM EDT     -0.00 knots Slack
Sun -- 12:25 PM EDT     -2.21 knots Max Ebb
Sun -- 04:25 PM EDT     0.00 knots Slack
Sun -- 06:22 PM EDT     Moonset
Sun -- 07:02 PM EDT     2.31 knots Max Flood
Sun -- 07:40 PM EDT     Sunset
Sun -- 10:11 PM EDT     -0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-2.1-2-1.6-101.222.11.70.9-0.2-1.5-2.2-2.1-1.9-1.3-0.50.71.82.321.30.2-1.1

Weather Map and Satellite Images
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Weather Map
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IR Satellite Image from GEOS
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GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Jacksonville, FL (7,2,3,4)
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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.