Sunday, January19, 2020
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Marine Weather and Tides
Jacksonville Beach, FL

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 7:20AMSunset 5:51PM Sunday January 19, 2020 4:44 AM EST (09:44 UTC) Moonrise 2:27AMMoonset 1:36PM Illumination 33% Phase: Waning Crescent; Moon at 24 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:202001191645;;179130 Fzus52 Kjax 190837 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 337 Am Est Sun Jan 19 2020 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. Amz450-452-454-191645- 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- 337 Am Est Sun Jan 19 2020
.small craft exercise caution today...
Today..Southwest winds 15 to 20 knots becoming west northwest in the evening. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 7 seconds. Inland waters a moderate chop. Showers likely.
Tonight..North northwest winds 20 to 25 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 6 seconds. Inland waters choppy.
Monday..North winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 6 seconds. Inland waters choppy.
Monday night..North winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 7 seconds. Inland waters choppy.
Tuesday..North winds 20 to 25 knots with gusts to around 35 knots. Seas 4 to 6 feet with occasional seas up to 8 feet building to 6 to 8 feet with occasional seas up to 10 feet in the afternoon. Dominant period 6 seconds. Inland waters rough.
Tuesday night and Wednesday..North northeast winds 20 to 25 knots. Seas 6 to 9 feet with occasional seas up to 11 feet. A chance of.
Wednesday night..Northeast winds 20 to 25 knots. Seas 6 to 9 feet with occasional seas up to 11 feet. A chance of showers.
Thursday..East northeast winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. A chance of showers.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 337 Am Est Sun Jan 19 2020
Synopsis.. A small craft advisory will continue today for the offshore waters as 7 foot seas remain and winds are expected to increase as the front moves south of the area waters overnight Sunday. Small craft exercise caution is in effect for the near shore waters today with winds 15-20 knots and waves 4-6 feet. High pressure northwest of the waters will bring elevated northwest winds Monday. Th high pressure will move east over the ohio valley Tuesday keeping northerly winds in place. A few rain showers are possible Tuesday. Winds will veer to the northeast on Wednesday as high pressure moves north of the waters over the mid atlantic with another chance for rain showers as a weak inverted trough develops over the waters in the northeast flow.
Gulf stream.. The approximate location of the west wall of the gulf stream as of jan 16, 2020 at 1200 utc... 62 nautical miles east of flagler beach. 68 nautical miles east of saint augustine beach. 75 nautical miles east of jacksonville beach. 91 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Jacksonville Beach, FL
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location: 30.29, -81.36     debug


Area Discussion for - Jacksonville, FL
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FXUS62 KJAX 190904 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 404 AM EST Sun Jan 19 2020

NEAR TERM [Through Tonight].

A cold front moving into our area from the NW has created some light rain showers ahead of it over parts of SE GA early this morning. These light rain showers will continue to overspread the area from west to east later this morning as the cold front presses further southeast. Light southwest winds around 10-15 mph ahead of the front and mostly cloudy skies are keeping current temperatures across the area in the low to mid 60s.

Likely rain chances will move over SE GA during the late morning hours and then move south and east over NE FL during the midday and early afternoon time frame. A slight chance of thunder is possible mainly south of I-10 and west of the St Johns river basin this afternoon, but instability looks weak with 200 to 400 J/Kg of surface based CAPE for the afternoon hours with abundant cloud cover limiting instability. The cold front will push south of our area by late this evening and winds will back to the west and west northwest overnight with skies becoming mostly clear under cold air advection as strong high pressure well to our northwest ushers in much colder air.

High temperatures this afternoon will rise above average over NE FL locations into the low 70s, but will be cooler over SE GA and the Suwannee Valley as temperatures stay cooler with an earlier start to the rain this morning and then drop off after the frontal passage this afternoon. Overnight low temperatures into Monday morning will be much colder with temperatures in the low to mid 30s across SE GA and the Suwannee Valley of NE FL while locations along I-95 fall into the upper 30s to low 40s. Wind chills will drop into the mid to upper 20s over SE GA and inland NE FL areas west of Highway 301 with values in the low to mid 30s along the SE GA and NE FL coastline.

SHORT TERM [Monday Through Tuesday].

Monday . Below normal temps expected under Mostly Sunny skies with high clouds at times and highs only rebounding into the 50s as North winds 10-15 mph with gusts to 20-25 mph make for coolest day so far this year.

Monday Night . Main High Pressure Center remains well NW of the region over the Central U.S. and this sets the stage for more of an advective freeze event than radiational since North winds will remain elevated around 5 mph through the night, so frost will remain patchy in most locations with elevated winds but still expect widespread light freeze over SE GA and inland NE FL with lows in the upper 20s, but the elevated North winds should keep the Atlc Coast and St Johns River Basin south of JAX just above freezing in the 30s.

Tuesday-Wednesday . Cold High pressure over the Central U.S. slowly shifts eastward towards the Mid Atlc States and below normal temps will continue with both days reporting highs only in the 50s both days with another widespread light freeze expected over inland areas Wed Morning while the coastal areas remain above freezing in the 30s as winds become N-NE and remain elevated once again.

LONG TERM [Wednesday Through Sunday].

Thursday . High pressure settles into the Carolinas and breezy onshore flow develops which will moderate temps slightly with highs closer to climo values in the 60s, but increase in clouds and moisture will support showers over the coastal waters and along the NE FL Coast from JAX southward through the St Johns River Basin at times.

Friday . Long-range models trending towards rainfall chances increasing as onshore flow from the Atlc in the lower levels is over-run by moist SW flow in the mid levels out of the Gomex and this will likely bring at least scattered to numerous showers and highs pushing closer to 70 degrees.

Saturday . Limited Rainfall chances will continue into Saturday as another weakening frontal boundary from the NW pushes through the region and into Atlantic by Sat Night. Max Temps remain slightly above normal around 70 degrees on Saturday falling into the 40s behind the frontal boundary Sat Night.

AVIATION. [Through 06Z Monday]

Expecting VFR conditions to trend to MVFR by 12Z for all sites except SGJ with brief IFR conditions possible between 14Z and 18Z for SSI, JAX, VQQ, and GNV and 18Z to 00Z for SGJ. Ceilings will lift to VFR after 00Z for SSI/JAX/VQQ and after 03Z for GNV/CRG/SGJ. Winds will back from the west and west north west at all terminals after 21Z except for SGJ, which will see the wind shift after 00Z. Have VCSH for the Jax terminals, SSI and GNV after 09Z/10Z on Sunday and VCSH for SGJ after 12Z. The most likely rain showers will be at SGJ where SHRA are in place after 18Z and at GNV with TEMPO between 14Z and 18Z for SHRA. Lighter showers expected at the JAX terminals and SSI after 14Z. Some LLWS is possible at SSI between 09Z and 14Z.

MARINE.

A Small Craft Advisory will continue today for the offshore waters while 7 foot seas persist there with winds expected to increase as the front moves south of the area waters overnight Sunday. A Small Craft Exercise Caution is in effect for the near shore waters today with winds 15-20 knots and waves 4-6 feet. High pressure northwest of the waters will bring elevated northwest winds on Monday over the area waters. On Tuesday high pressure will move east over the Ohio Valley keeping northerly winds in place. A few rain showers are possible Tuesday. Winds will veer to the northeast on Wednesday as high pressure moves north of the waters over the Mid Atlantic with another chance for rain showers as a weak inverted trough develops over the waters in the northeast flow.

Rip Currents: Moderate Risk of rip currents today for NE FL beaches with a low risk of rip currents for SE GA beaches.

PRELIMINARY POINT TEMPS/POPS.

AMG 64 32 49 27 46 / 60 0 0 0 0 SSI 69 37 50 34 47 / 60 0 0 0 0 JAX 70 36 54 32 50 / 70 0 0 0 0 SGJ 72 40 55 38 51 / 60 20 0 0 10 GNV 70 36 55 30 51 / 70 10 0 0 0 OCF 72 38 57 32 53 / 60 20 0 0 0

JAX WATCHES/WARNINGS/ADVISORIES. FL . None. GA . None. AM . Small Craft Advisory until 9 AM EST Monday 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.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LTJF1 8 mi63 min 66°F 59°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 8 mi63 min 66°F 63°F1018.9 hPa
BLIF1 11 mi63 min 67°F 1019.2 hPa63°F
DMSF1 12 mi57 min 65°F
NFDF1 16 mi57 min 65°F
41117 25 mi45 min 64°F4 ft
FRDF1 - 8720030 - Fernandina Beach, FL 27 mi75 min S 7 G 12
41112 - Offshore Fernandina Beach, FL (132) 29 mi45 min 62°F4 ft
SAUF1 - St. Augustine, FL 30 mi45 min SSW 8.9 G 12 64°F 65°F1019.5 hPa (-2.3)
GTXF1 - Guana Tolomato Matanzas Reserve, FL 44 mi60 min SSW 2.9 63°F 1021 hPa60°F

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mayport Naval Station - Adm David L. McDonald Field, FL8 mi53 minSSW 1310.00 miFair65°F57°F78%1018.5 hPa
Jacksonville Craig Municipal Airport, FL9 mi52 minSSW 1110.00 miFair66°F59°F78%1018.7 hPa
Jacksonville Naval Air Station, FL17 mi52 minSSW 1310.00 miOvercast67°F57°F73%1018.7 hPa
Jacksonville International Airport, FL22 mi1.8 hrsSSW 810.00 miMostly Cloudy66°F57°F73%1018.9 hPa
Northeast Florida Regional Airport, FL22 mi49 minSSW 11 G 1510.00 miFair64°F59°F84%1019.5 hPa
Fernandina Beach Municipal Airport, FL23 mi70 minSSW 1010.00 miFair65°F61°F87%1018.6 hPa

Link to 5 minute data for KNRB

Wind History from NRB (wind in knots)
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Last 24hrE8SE8SE8SE9SE7SE9SE11SE10SE9SE9SE10SE10SE11S9S10--S11S9S10S9S10S11S9S13
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2 days agoSW5SW4SW5W4W7W9W9W11W9W9W5W7W5W3CalmN8N6NE8N8NE17NE19NE19NE19
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Tide / Current Tables for Jacksonville Beach, Florida
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Jacksonville Beach
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Sun -- 02:28 AM EST     Moonrise
Sun -- 03:13 AM EST     5.61 feet High Tide
Sun -- 07:22 AM EST     Sunrise
Sun -- 09:38 AM EST     0.47 feet Low Tide
Sun -- 01:35 PM EST     Moonset
Sun -- 03:24 PM EST     4.97 feet High Tide
Sun -- 05:50 PM EST     Sunset
Sun -- 09:46 PM EST     0.09 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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34.35.25.65.44.83.72.51.40.60.51.22.23.44.44.94.94.33.32.21.10.30.10.7

Tide / Current Tables for St. Johns River Entrance, Florida Current (2) (expired 1999-12-31)
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St. Johns River Entrance
Click for Map
Sun -- 12:22 AM EST     0.00 knots Slack
Sun -- 02:28 AM EST     Moonrise
Sun -- 02:53 AM EST     2.26 knots Max Flood
Sun -- 05:56 AM EST     -0.00 knots Slack
Sun -- 07:22 AM EST     Sunrise
Sun -- 09:05 AM EST     -2.02 knots Max Ebb
Sun -- 01:17 PM EST     0.00 knots Slack
Sun -- 01:35 PM EST     Moonset
Sun -- 03:18 PM EST     1.51 knots Max Flood
Sun -- 05:50 PM EST     Sunset
Sun -- 05:53 PM EST     -0.00 knots Slack
Sun -- 09:01 PM EST     -2.21 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.40.81.92.31.91.1-0.1-1.2-1.8-2-1.9-1.7-1.3-0.40.81.51.40.8-0.1-1.3-2-2.2-2.1-1.7

Weather Map
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GEOS 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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Jacksonville, FL (4,6,7,8)
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Ground Weather Radar Station Jacksonville, FL
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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 numerous 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.