Wednesday, September20, 2017

Marine Weather and Tides
Nocatee, 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 7:12AMSunset 7:24PM Wednesday September 20, 2017 9:03 AM EDT (13:03 UTC) Moonrise 6:30AMMoonset 6:59PM Illumination 0% Phase: New Moon; Moon at 29 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
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- 319 Am Edt Wed Sep 20 2017
Today..West winds 5 to 10 knots becoming east southeast in the afternoon. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 12 seconds. Inland waters a light chop.
Tonight..South winds 5 to 10 knots. Seas 2 to 4 feet. Dominant period 13 seconds. Inland waters a light chop.
Thursday..North winds around 5 knots becoming east in the afternoon. Seas 2 to 4 feet. Dominant period 11 seconds. Inland waters a light chop.
Thursday night..East northeast winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 11 seconds. Inland waters a light chop.
Friday..East northeast winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters a moderate chop. A chance of showers and Thunderstorms.
Friday night..East northeast winds 10 to 15 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Inland waters a moderate chop. A chance of showers.
Saturday..Northeast winds 10 to 15 knots. Seas 6 to 8 feet with occasional seas up to 10 feet. Inland waters a moderate chop. A chance of showers and a slight chance of Thunderstorms.
Saturday night..Northeast winds 10 to 15 knots. Seas 7 to 10 feet with occasional seas up to 13 feet. Inland waters a moderate chop. A slight chance of showers and Thunderstorms.
Sunday..North northeast winds 10 to 15 knots. Seas 7 to 10 feet with occasional seas up to 13 feet. Inland waters a moderate chop. A slight chance of showers.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 319 Am Edt Wed Sep 20 2017
Synopsis.. Hurricane jose continues to drift northward across the mid atlantic region. High pressure will remain over the waters through Thursday. Winds and seas will increase again Friday through Sunday due to hurricane maria.

7 Day Forecast for Marine Location Near Nocatee, FL
   Hourly   EDIT   Help
location: 30.02, -81.38     debug

Area Discussion for - Jacksonville, FL
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus62 kjax 200707
area forecast discussion
national weather service jacksonville fl
307 am edt Wed sep 20 2017

Minor flooding continues on the st johns river basin during
times of high tide...

Near term today-tonight
Today... Weak trof aloft will push into SE ga today with a slight
increase in moisture with pwats around 1.8" and this combined with
daytime heating should be enough to trigger widely scattered
showers and storms by the afternoon hours. Most of this activity
will be NW of a line from jax-gnv across SE ga, while across the
rest of NE fl conditions should remain dry with drier airmass with
pwats of 1.5" or less. A few storms may contain some brief heavy
rainfall and gusty winds but severe weather not expected. Max
temps will remain above normal with lower 90s expected inland and
mid to upper 80s along the coast.

Tonight... A few inland widely scattered showers storms in the
evening that should fade between sunset and midnight with just
fair skies during the overnight hours as weak trof aloft lingers
over the region. Min temps a bit milder overnight with lows near
70 inland and lower middle 70s at the coast.

Short term (Thursday through Friday)...

Thursday and Thursday night... Weak upper level troughing will
reside over the region. With in the base of the trough, there
will be a weak impulse that will track over interior SE ga while
at the same time there will be surface based convergence near the
altamaha during the morning that will shift southward into the
suwannee river valley. There will be deep layer moisture located
near the surface based convergence (between 1.75 to 1.85") with
some mid level instability. There will be a chance of showers and
few storms north of i-10 and west of 301 into inland southeast
georgia. Isolated mainly showers and storms Thursday evening
should dissipate after midnight. Some isolated coastal showers
also possible as mean high pressure ridge builds north of the area
as a prevailing easterly flow develops. MAX temps once again
warmer than normal around upper 80s to about 90. Lows will be in
the upper 60s to lower 70s inland to mid 70s along the coast.

Friday... Full attention will be on hurricane maria forecast by
nhc to be near the southeast bahamas fri. Surface high pressure
will reside over the western carolinas, east tn, and N ga. This
will strengthen the local gradient along the beaches and adjacent
atlantic with easterly winds of 12 to 17 knots with some gusts of
19 to 23 knots. There will be a weak coastal trough near palm
coast. This weak coastal trof in concert with easterly flow should
increase some and provide enough moisture to produce showery
precip Friday mainly south of line from saint augustine to ocala
with isolated thunder. Markedly less to nil precip coverage north
of the aforementioned line where there is basically little to no
low level forcing.

Long term (Saturday through Tuesday)...

the general synoptic pattern is focused on hurricane maria which
is still projected to move northward roughly between 72w and 73w
Saturday and Sunday. This will translate into low level flow
backing slowly from east to northeast and help shunt deep moisture
south of the area. We still are going with scattered coverage for
Saturday with precipitable water values between 1.85 and 2 inches
with a surface based trof over the region providing convergence.

Drier air should work in from the northeast and north on Sunday
and we bring pops down to 10-15 percent. Temps will trend more to
the mid to upper 80s during the weekend. Breezy northeasterly flow
expected near 15g25 mph at times... Mainly coastal counties again.

Main concern is high potential for rough surf, beach erosion, and
rip current threats at area beaches. Though there is fairly good
agreement in model guidance on maria not directly affecting fl,
all interests should continue to monitor the progress of maria
through the upcoming week via the latest advisories being issued
by the national hurricane center.

Subsident and dry air-mass continues Monday and Tuesday... With
pwats dropping to or below 1.4 inches. Sfc high pressure expected
to be located over the tn valley area... While hurricane maria is
forecast to be about 500-600 miles east of the area. The dry air
and somewhat lighter flow may begin a trend of slightly warmer
aftn temps compared to the weekend. Primary concern still is
centered around beach impacts (ie, rough surf, some beach erosion,
and high risk of rip currents) for early next week with guidance
suggesting east-northeast swells continuing.

Vfr expected. Rain chances this afternoon too low at TAF sites to
include at this point.

Will allow small craft advisory to expire as swells over the
offshore waters have subsided to 4-6 feet and will just go with
scec headline as winds remain variable 10 knots or less today and
tonight. Winds become E NE on Thursday and slowly increase Friday
through the weekend as TC maria passes well offshore although seas
will build as high as 10-15 ft offshore and small craft advisories
will need to be posted.

Rip currents: moderate risk continues in lingering long period
swells at the coast with surf in the 2-4 ft range with a few
breakers to 5 feet at times.

Santa fe and st. Marys river flooding slowly improving to
moderate levels while minor flooding continues on the satilla
river basin in SE ga.

Coastal flood advisory remains in effect for the st. Johns river
basin as minor flooding continues during each high tide cycle from
jacksonville southward into putnam county.

Preliminary point temps pops
Amg 92 70 90 69 30 10 30 10
ssi 87 74 86 74 20 10 20 10
jax 91 71 88 72 20 10 20 10
sgj 89 72 86 73 10 0 10 10
gnv 92 70 89 69 10 0 20 10
ocf 93 69 90 70 10 0 20 10

Jax watches warnings advisories
Fl... Coastal flood advisory until 8 pm edt this evening for clay-
coastal duval-flagler-inland duval-putnam-st. Johns.

Ga... None.

Am... None.

Hess cordero

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
SAUF1 - St. Augustine, FL 13 mi63 min WNW 4.1 G 5.1 74°F 82°F1017.3 hPa (+2.2)74°F
41117 16 mi41 min 81°F4 ft
RCYF1 18 mi45 min 82°F
LTJF1 25 mi45 min 77°F 73°F
JXUF1 26 mi45 min 81°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 26 mi45 min 76°F
DMSF1 27 mi45 min 81°F
BLIF1 27 mi45 min S 1 G 2.9 77°F 1018.2 hPa77°F
FRDF1 - 8720030 - Fernandina Beach, FL 45 mi45 min W 2.9 G 5.1 76°F 82°F1018 hPa
41112 - Offshore Fernandina Beach, FL (132) 48 mi33 min 81°F3 ft

Wind History for I-295 Bridge, St Johns River, FL
(wind in knots)    EDIT      (on/off)   Help
1 day
2 days

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Northeast Florida Regional Airport, FL4 mi67 minNW 610.00 miFair73°F71°F94%1017.3 hPa
Jacksonville Naval Air Station, FL22 mi70 minWSW 310.00 miMostly Cloudy74°F70°F88%1016.7 hPa
Jacksonville Craig Municipal Airport, FL23 mi70 minN 08.00 miFair72°F69°F91%1017 hPa

Wind History from SGJ (wind in knots)
1 day agoNW5N8N11N9N12N12
2 days ago----N11N12N12N16

Tide / Current Tables for Palm Valley, ICWW, Florida
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Palm Valley
Click for Map
Wed -- 01:30 AM EDT     New Moon
Wed -- 04:57 AM EDT     -0.17 feet Low Tide
Wed -- 07:12 AM EDT     Sunrise
Wed -- 07:29 AM EDT     Moonrise
Wed -- 11:38 AM EDT     5.58 feet High Tide
Wed -- 05:20 PM EDT     -0.17 feet Low Tide
Wed -- 07:24 PM EDT     Sunset
Wed -- 07:59 PM EDT     Moonset
Wed -- 11:58 PM EDT     5.64 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Vilano Beach, Tolomato River, Florida
   EDIT      (on/off)   Help   One Week of Data
Vilano Beach
Click for Map
Wed -- 01:30 AM EDT     New Moon
Wed -- 03:02 AM EDT     0.49 feet Low Tide
Wed -- 07:12 AM EDT     Sunrise
Wed -- 07:29 AM EDT     Moonrise
Wed -- 09:16 AM EDT     5.66 feet High Tide
Wed -- 03:23 PM EDT     0.54 feet Low Tide
Wed -- 07:23 PM EDT     Sunset
Wed -- 07:58 PM EDT     Moonset
Wed -- 09:37 PM EDT     5.73 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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

GOES Local Image of Southeast    EDIT

Wind Forecast for Jacksonville, FL (9,2,3,4)
      (on/off)   Help

Ground Weather Radar Station Jacksonville, FL
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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 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 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.