Saturday, August24, 2019 L-36.com


Marine Weather and Tides
Neptune Beach, FL

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:56AMSunset 7:59PM Saturday August 24, 2019 12:39 AM EDT (04:39 UTC) Moonrise 12:00AMMoonset 2:01PM Illumination 39% Phase: Third Quarter Moon; Moon at 23 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 Expires:201908240845;;108691 Fzus52 Kjax 240034 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 834 Pm Edt Fri Aug 23 2019 Atlantic Coastal Waters From Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm. Seas Are Provided As A Range Of The Average Height Of The Highest 1/3 Of The Waves, Along With The Occasional Height Of The Average Highest 1/10 Of The Waves. Amz450-452-454-240845- 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- 834 Pm Edt Fri Aug 23 2019
Rest of tonight..South southeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 5 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Saturday..East southeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 6 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Saturday night..East southeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 6 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Sunday..Northeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 6 seconds. Inland waters a moderate chop. A chance of showers and a slight chance of Thunderstorms.
Sunday night..North northeast winds 10 to 15 knots. Seas 3 to 4 feet. Dominant period 8 seconds. Inland waters a moderate chop. A chance of showers and a slight chance of Thunderstorms.
Monday..North winds 10 to 15 knots becoming east northeast in the afternoon. Seas 2 to 4 feet. Dominant period 7 seconds. Inland waters a moderate chop. Showers and Thunderstorms likely.
Monday night..South winds around 5 knots becoming southwest after midnight. Seas 2 to 3 feet. A chance of showers and a slight chance of Thunderstorms.
Tuesday..South southwest winds around 5 knots becoming south southeast in the afternoon. Seas 2 to 3 feet. Showers and Thunderstorms likely.
Tuesday night..Southwest winds 5 to 10 knots becoming west after midnight. Seas 2 to 3 feet. A chance of showers and a slight chance of Thunderstorms.
Wednesday..Southwest winds 5 to 10 knots becoming south in the afternoon. Seas 2 to 3 feet. Showers and Thunderstorms likely.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 834 Pm Edt Fri Aug 23 2019
Synopsis.. An organizing tropical low pressure center along the southeast florida coast will pivot northeastward by late Saturday and will then accelerate northeastward along the gulf stream waters on Sunday as the system strengthens. Easterly winds will strengthen on Saturday and will shift to northeasterly on Sunday and then northerly by Sunday night as this developing cyclone moves east of our offshore waters. Meanwhile, strengthening high pressure over new england will drive a cold front southward over the georgia waters by Sunday morning, with this boundary then stalling near the florida border by late Sunday and Monday. Atlantic ridging will then build over the florida peninsula early next week, resulting in light prevailing southwest winds beginning on Monday night.
Gulf stream.. The approximate location of the west wall of the gulf stream as of aug 22, 2019 at 1200 utc... 61 nautical miles east southeast of flagler beach. 72 nautical miles east of saint augustine beach. 84 nautical miles east of jacksonville beach. 92 nautical miles east of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Neptune Beach, FL
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location: 30.31, -81.43     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 240032
afdjax
area forecast discussion
national weather service jacksonville fl
832 pm edt Fri aug 23 2019

Mostly dry overnight with areas of fog developing by sunrise
across interior ga fl...

Update
Showers and thunderstorms continue to struggle developing this
evening as dry air is positioned directly over the area. The
00z ua observation revealed 1.60 inches pwat over jax, with a
substantial dry layer above 800mb. This area of dry air is also
evident when viewing GOES derived pwats. Some isolated showers
have formed across northwest zones from douglas to hazlehurst,
ga as mesoscale boundaries have collided over the last hour or two.

Any additional showers overnight will be along the east coast
within southeasterly low level flow, however, probabilities are
very low. Otherwise, winds calm across the inland area with patchy
and areas of fog developing overnight and leading into sunrise.

Temperatures comfortably drop into the lower 70s.

Aviation
Vfr conditions this evening. Winds will relax at the coast after
sunset and back ssw as land breeze develops overnight < 5 kts with
winds going near calm inland. Clouds will rotate northward around
the south fl low, bringing an increased potential for brief MVFR
ceilings and a shower near sgj Fri morning. Pre- dawn low stratus
and shallow ground fog possible at inland terminals and based
MVFR to ifr restrictions for vqq and jax on persistence.

Marine
As 98l remains positioned near the SE florida coast, flow across
area waters is expected to be out of the east and southeast
through the weekend. Depending on the intensification of 98l into
a tropical cyclone, winds and seas will generally increase as well
leading to higher seas. Mariners should remain constantly updated
with the progress of 98l.

Rip currents: moderate risk.

Preliminary point temps pops
Amg 73 93 74 89 20 40 30 80
ssi 78 88 79 88 20 30 30 50
jax 74 93 75 91 20 30 20 60
sgj 77 88 78 89 30 40 30 50
gnv 73 91 73 92 10 50 10 70
ocf 73 91 74 92 10 60 20 60

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... None.

Mcginnis


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LTJF1 5 mi52 min 82°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 6 mi52 min SE 5.1 G 8 82°F 85°F1016.3 hPa
BLIF1 8 mi52 min ESE 2.9 G 4.1 82°F 1017.1 hPa82°F
DMSF1 9 mi52 min 86°F
JXUF1 10 mi52 min 85°F
NFDF1 12 mi52 min SSE 2.9 G 4.1 79°F 1018.1 hPa
FRDF1 - 8720030 - Fernandina Beach, FL 25 mi52 min 85°F 87°F1016.7 hPa
41117 28 mi40 min 83°F2 ft
41112 - Offshore Fernandina Beach, FL (132) 29 mi40 min 83°F2 ft
SAUF1 - St. Augustine, FL 33 mi40 min ESE 8 G 8 82°F 83°F1015.8 hPa (+0.3)
GTXF1 - Guana Tolomato Matanzas Reserve, FL 46 mi115 min ESE 5.1 80°F 1018 hPa80°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, FL5 mi2.8 hrsESE 410.00 miFair81°F75°F85%1015.5 hPa
Mayport Naval Station - Adm David L. McDonald Field, FL6 mi2.8 hrsESE 810.00 miFair83°F77°F82%1015.6 hPa
Jacksonville Naval Air Station, FL14 mi2.8 hrsE 610.00 miPartly Cloudy84°F75°F74%1015.2 hPa
Jacksonville International Airport, FL19 mi2.7 hrsE 410.00 miA Few Clouds80°F75°F87%1015.3 hPa
Fernandina Beach Municipal Airport, FL21 mi2.7 hrsno data10.00 miFair81°F78°F90%1015.6 hPa
Northeast Florida Regional Airport, FL24 mi2.7 hrsESE 710.00 miFair81°F77°F88%1015.8 hPa

Link to 5 minute data for KCRG

Wind History from CRG (wind in knots)
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Last 24hr------------Calm--CalmCalm--Calm--CalmE8NE11--E9E11E8--E5E7E4
1 day ago----S4----------CalmCalmCalmW4----NE5NE5E10
G18
E7SE7SE9----SE6--
2 days ago----------------CalmCalm----CalmSE34CalmSE7--E10E9E9SE6SE5SE6

Tide / Current Tables for Pablo Creek, ICWW bridge, St. Johns River, Florida
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Pablo Creek
Click for Map
Sat -- 12:58 AM EDT     Moonrise
Sat -- 04:10 AM EDT     3.59 feet High Tide
Sat -- 06:57 AM EDT     Sunrise
Sat -- 10:14 AM EDT     0.85 feet Low Tide
Sat -- 03:00 PM EDT     Moonset
Sat -- 04:56 PM EDT     4.13 feet High Tide
Sat -- 07:57 PM EDT     Sunset
Sat -- 11:15 PM EDT     1.27 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.82.433.43.63.53.22.51.81.10.911.42.12.93.644.143.52.82.11.51.3

Tide / Current Tables for St. Johns River Entrance, Florida Current
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St. Johns River Entrance
Click for Map
Sat -- 12:58 AM EDT     Moonrise
Sat -- 02:00 AM EDT     1.52 knots Max Flood
Sat -- 04:45 AM EDT     -0.00 knots Slack
Sat -- 06:57 AM EDT     Sunrise
Sat -- 07:46 AM EDT     -1.89 knots Max Ebb
Sat -- 11:35 AM EDT     0.00 knots Slack
Sat -- 02:27 PM EDT     2.27 knots Max Flood
Sat -- 03:00 PM EDT     Moonset
Sat -- 05:43 PM EDT     -0.00 knots Slack
Sat -- 07:57 PM EDT     Sunset
Sat -- 08:21 PM EDT     -1.90 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.31.21.51.20.5-0.2-1-1.7-1.9-1.6-1.1-0.50.41.42.22.11.50.6-0.3-1.3-1.9-1.8-1.5-1

Weather Map and Satellite Images
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wmap_A
GOES Local Image of    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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Jacksonville, FL (0,6,7,8)
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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.