Friday, April3, 2020
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Marine Weather and Tides
Yulee, 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 7:10AMSunset 7:47PM Friday April 3, 2020 7:41 AM EDT (11:41 UTC) Moonrise 1:58PMMoonset 3:14AM Illumination 79% Phase: Waxing Gibbous; Moon at 10 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:202004031600;;493077 Fzus52 Kjax 030702 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 302 Am Edt Fri Apr 3 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. Amz450-452-454-031600- 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- 302 Am Edt Fri Apr 3 2020
Today..North northeast winds 5 to 10 knots becoming east in the afternoon. Seas 2 to 3 feet. Dominant period 11 seconds. Inland waters a light chop.
Tonight..South winds around 5 knots becoming west southwest after midnight. Seas 2 to 3 feet. Dominant period 10 seconds increasing to 15 seconds after midnight. Inland waters smooth.
Saturday..Northwest winds 5 to 10 knots becoming east northeast in the afternoon. Seas 2 to 3 feet. Dominant period 15 seconds. Inland waters a light chop.
Saturday night..East winds 5 to 10 knots. Seas 2 to 4 feet. Dominant period 14 seconds. Inland waters a light chop.
Sunday..East winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 13 seconds. Inland waters a light chop. A slight chance of showers.
Sunday night and Monday..Southeast winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet.
Monday night..South winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet.
Tuesday..South winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. A slight chance of showers.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 302 Am Edt Fri Apr 3 2020
Synopsis.. Surface high pressure will build over the local waters through tonight as low pressure drifts offshore of the new england atlantic coast. Long period swells from this distant low will impact the local waters this weekend as surface high pressure rebuilds northeast of the local waters. Combined seas over the outer waters will near small craft exercise caution to marginal small craft advisory conditions late Sunday through Tuesday. Monday the high will build east of the southeast atlantic coast. Southerly flow develops Tuesday in advance of an approaching frontal system.
Gulf stream.. The approximate location of the west wall of the gulf stream as of apr 02, 2020 at 1200 utc... 62 nautical miles east of flagler beach. 72 nautical miles east of saint augustine beach. 83 nautical miles east of jacksonville beach. 97 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Yulee, FL
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location: 30.6, -81.52     debug


Area Discussion for - Jacksonville, FL
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FXUS62 KJAX 031118 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 718 AM EDT Fri Apr 3 2020

AVIATION. [Through 12Z Saturday]

Shallow ground fog still possible near VQQ/CRG/JAX and GNV for the next hour. Otherwise, anticipate VFR conditions through the period with increasing upper level cloud coverage. Calm winds will become east to southeasterly at around 5-10 kts in the late morning/early afternoon hours and go calm again overnight.

PREV DISCUSSION [339 AM EDT].

NEAR TERM [Through Tonight].

Warming trend and continued dry as a weak surface high develops over the local area and mid/upper level ridge axis across the central GOMEX de-amplifies. Partly to mostly cloudy skies today and tonight under passing mid/high clouds streaming over the area from the west with diurnally driven cumulus popping across the area during the afternoon between the sea breezes. Conditions not ideal for fog development this morning or tonight given dry low level airmass and increasing mid/high clouds, but a few spots could develop late night/early morning shallow ground fog through sunrise.

High temperatures will trend warmer near climo values with highs near 80 inland to the low/mid 70s toward the Atlantic coast under onshore flow this afternoon. Trended a bit cooler than blended guidance for low temperatures tonight given dry low level airmass in place, however, overall trend will be lows trending a bit warmer and closer toward normal at all climate sites ranging from near 50 inland to the mid/upper 50s along the Atlantic coast and St. Johns River basin.

SHORT TERM [Saturday Through Sunday].

An upper level ridge over the region shifts eastward as a series of shortwaves propagate through the ridge. On Saturday, warm, dry conditions continue as cloud cover increases and highs range in the low to mid 80s. More potent shortwave energy moves through on Sunday causing scattered showers mainly over north central Florida. Due to overcast skies, temperatures cool slightly on Sunday with highs in the upper 70s to low 80s.

LONG TERM [Monday Through Thursday].

Surface high pressure off the Atlantic coast and upper ridging across the southern Gulf of Mexico prevail through mid-week. Tuesday through Thursday, rounds of showers and storms affect the region as a series of shortwaves propagate along the northern periphery of the ridge and move through the southeast US. The deterministic models differ with how much rain comes to the region with the ECMWF being the drier solution. West-southwesterly flow develops leading to a warming trend. Highs will warm into the upper 80s to around 90 and lows into the mid to upper 60s by mid- week.

MARINE.

Surface high pressure will build over the local waters through tonight as low pressure drifts offshore of the New England Atlantic coast. Long period swells from this distant low will impact the local waters this weekend as surface high pressure rebuilds northeast of the local waters. Combined seas over the outer waters will near Small Craft Exercise Caution to marginal Small Craft Advisory conditions late Sun through Tue. Monday the high will build east of the Southeast Atlantic coast. Southerly flow develops Tuesday in advance of an approaching frontal system.

Rip Currents: Moderate risk today with elevated risk (Moderate or High) this weekend as long period swells and persistent onshore flow impact local beaches.

FIRE WEATHER.

Dry conditions with near red flag conditions expected through Saturday night. Minimum afternoon RHs will reach critical to near critical across portions of inland locations and ERC values will be in the 30s. However, light winds will prevent inland locations from reaching red flag criteria. Light and variable winds prevail but coastal winds increase and shift to northeasterly in the afternoon with the seabreeze.

HYDROLOGY.

Rises along the Altamaha River over the next few days with Minor Flooding occurring at Baxley. Other locations along the basin are expected to remain below Flood Stage.

PRELIMINARY POINT TEMPS/POPS.

AMG 77 52 81 56 78 / 0 0 0 0 20 SSI 71 57 75 63 74 / 0 0 0 10 10 JAX 77 54 83 61 78 / 0 0 0 10 20 SGJ 74 55 80 63 76 / 0 0 0 10 20 GNV 80 51 85 58 79 / 0 0 0 10 20 OCF 82 53 86 59 80 / 0 0 0 0 20

JAX WATCHES/WARNINGS/ADVISORIES. FL . None. GA . None. AM . None.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FRDF1 - 8720030 - Fernandina Beach, FL 6 mi54 min W 1.9 G 2.9 63°F 67°F1016.2 hPa
41112 - Offshore Fernandina Beach, FL (132) 14 mi42 min 67°F2 ft
BLIF1 14 mi60 min NW 1.9 G 1.9 58°F 1016.8 hPa58°F
DMSF1 15 mi54 min 69°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 15 mi54 min W 2.9 G 2.9 60°F 67°F1016.2 hPa
NFDF1 15 mi54 min NW 1 G 1.9 52°F
LTJF1 16 mi60 min 60°F 57°F
41117 48 mi72 min 68°F4 ft
SAUF1 - St. Augustine, FL 53 mi42 min WNW 4.1 G 4.1 60°F 67°F1016.4 hPa (+1.0)
SAXG1 - Sapelo Island Reserve, GA 58 mi102 min Calm 58°F 1015 hPa (+0.0)54°F

Wind History for Fernandina Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fernandina Beach Municipal Airport, FL3 mi47 minW 310.00 miFair54°F0°F%1016.3 hPa
Jacksonville International Airport, FL12 mi46 minN 010.00 miMostly Cloudy50°F46°F86%1016.2 hPa
Mayport Naval Station - Adm David L. McDonald Field, FL15 mi50 minWNW 310.00 miMostly Cloudy54°F52°F93%1016.1 hPa
Jacksonville Craig Municipal Airport, FL19 mi49 minN 010.00 miFair50°F48°F93%1016.3 hPa

Link to 5 minute data for KNRB

Wind History from NRB (wind in knots)
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Last 24hrNW6NW7NW6W6NE5NE8NE11E10E8E8E8E7----S3CalmCalmW3SW4W3SW4SW4W3W3
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Tide / Current Tables for Nassauville, Florida
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Nassauville
Click for Map
Fri -- 04:14 AM EDT     Moonset
Fri -- 05:29 AM EDT     4.88 feet High Tide
Fri -- 07:12 AM EDT     Sunrise
Fri -- 12:30 PM EDT     0.44 feet Low Tide
Fri -- 02:58 PM EDT     Moonrise
Fri -- 06:03 PM EDT     4.43 feet High Tide
Fri -- 07:46 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.412.23.34.34.84.84.53.72.81.810.50.61.32.33.44.14.44.33.72.81.80.9

Tide / Current Tables for St. Johns River Entrance, Florida Current
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St. Johns River Entrance
Click for Map
Fri -- 12:39 AM EDT     0.00 knots Slack
Fri -- 03:28 AM EDT     2.18 knots Max Flood
Fri -- 04:13 AM EDT     Moonset
Fri -- 06:49 AM EDT     -0.00 knots Slack
Fri -- 07:11 AM EDT     Sunrise
Fri -- 09:27 AM EDT     -1.98 knots Max Ebb
Fri -- 01:32 PM EDT     0.00 knots Slack
Fri -- 02:58 PM EDT     Moonrise
Fri -- 03:58 PM EDT     1.60 knots Max Flood
Fri -- 07:05 PM EDT     -0.00 knots Slack
Fri -- 07:46 PM EDT     Sunset
Fri -- 09:51 PM EDT     -1.98 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.60.31.42.12.11.50.8-0.2-1.3-1.9-1.9-1.6-1.2-0.50.41.31.61.30.80.1-0.9-1.7-2-1.7

Weather Map
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wmap_A
GEOS Local Image of Southeast    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 (7,2,3,4)
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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.