Thursday, February20, 2020
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Marine Weather and Tides
Fruit Cove, 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 7:00AMSunset 6:19PM Thursday February 20, 2020 1:25 PM EST (18:25 UTC) Moonrise 5:13AMMoonset 3:43PM Illumination 9% Phase: Waning Crescent; Moon at 27 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:202002202200;;826558 Fzus52 Kjax 201358 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 858 Am Est Thu Feb 20 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. Amz450-452-454-202200- 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- 858 Am Est Thu Feb 20 2020
.small craft advisory in effect until 6 pm est this evening...
.gale warning in effect from 6 pm est this evening through late Friday night...
Rest of today..North winds around 20 knots with a few gusts to around 35 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 6 seconds. Inland waters choppy. Showers.
Tonight..North winds 25 to 30 knots with gusts to around 40 knots. Seas 7 to 10 feet with occasional seas up to 13 feet. Dominant period 6 seconds. Inland waters rough. Showers.
Friday..North winds 25 to 30 knots with gusts to around 40 knots. Seas 8 to 11 feet with occasional seas up to 14 feet. Dominant period 7 seconds. Inland waters very rough. A chance of showers.
Friday night..North northeast winds 25 to 30 knots becoming 15 to 20 knots after midnight. Seas 8 to 11 feet with occasional seas up to 14 feet. Dominant period 7 seconds increasing to 12 seconds after midnight. Inland waters rough.
Saturday..North northeast winds 15 to 20 knots. Seas 7 to 10 feet with occasional seas up to 13 feet. Dominant period 12 seconds. Inland waters choppy.
Saturday night..North northeast winds 10 to 15 knots. Seas 5 to 7 feet with occasional seas up to 9 feet.
Sunday..Northeast winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet.
Sunday night..East winds 5 to 10 knots becoming southeast after midnight. Seas 3 to 5 feet with occasional seas up to 6 feet.
Monday..South southeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. A chance of showers.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 858 Am Est Thu Feb 20 2020
Synopsis.. A front will move south of the region late today. A surge of north northeast winds will follow the front, as strong high pressure builds from the northwest tonight through Friday night. The high will weaken on Saturday, as it settles just to the north. The high will move toward the northeast Sunday. The high will move to the east Monday, with a frontal system forecast to affect the region Tuesday.
Gulf stream.. The approximate location of the west wall of the gulf stream as of feb 20, 2020 at 1200 utc... 65 nautical miles east of flagler beach. 74 nautical miles east of saint augustine beach. 87 nautical miles east southeast of jacksonville beach. 106 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Fruit Cove, FL
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location: 30.07, -81.61     debug


Area Discussion for - Jacksonville, FL
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FXUS62 KJAX 201802 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 102 PM EST Thu Feb 20 2020

AVIATION. [Through 18Z Friday]

Low end MVFR to IFR cigs at this time and will likely deteriorate to IFR for all TAFs late afternoon and this evening as widespread rain moves in from the west and northwest, and another cold front/trough pushes through the forecast area. Rain is expected diminish from northwest to southeast tonight, and probably ending at KSSI around 09z, and 09z-14z for rest of TAF sites. Low cigs will slowly lift Friday but still look like at least MVFR lasting until 15z-18z Friday. Winds will be northeast to east at 8 to 15 kt, more variable at GNV near a weak warm front. As the next cold frontal boundary moves through the area into the evening and overnight, winds will turn to north and northeast at all TAFS and increase. Strongest winds will be at SGJ, CRG, and SSI around 15-20G25-30kt by early Friday morning.

PREV DISCUSSION [859 AM EST].

NEAR TERM [Through Tonight].

Upper level high pressure near the Yucatan early this morning was flattening out and retrograding to the west this morning due to an upper level trough digging southward across the upper Great Lakes. Shortwave energy was moving eastward across the Southeast to the north of the area. At the surface, a weak frontal boundary was settling south across central Florida early this morning, and strong high pressure was pushing southward across the northern Plains. Northeast winds were 15 to 20 mph at the beaches, and low stratus was moving southwestward across the area.

An area of low pressure will develop along the northern Gulf near the coast of Louisiana this morning and move to the east northeast, while another area of low pressure will develop over the regional Georgia waters this afternoon. The frontal boundary across central Florida will then lift northward as a warm front this afternoon towards the FL/GA border. The low stratus across the area is forecast to scatter out briefly in the afternoon across north central Florida, with the stratus remaining across the rest of the area today. Showers will increase in coverage this afternoon across southeast Georgia as the area of low pressure moves through and strong high pressure begins to impinge on the region. The showers will then spread southward into the rest of the area late this afternoon and into the early evening hours. Rainfall amounts around 1 inch with locally higher amounts are possible north of Waycross in southeast Georgia, up to 0.5" across the rest of southeast Georgia, and lighter amounts across northeast Florida. Bulk shear values will increase to 50-60 knots late this afternoon ahead of the arctic airmass, but the cloud cover and low level inversion will keep thunderstorm chances very low.

The area of low pressure will strengthen as it moves northeastward between the Carolinas and Bermuda tonight, and arctic high pressure will push into the southern Plains and towards the Tennessee Valley by Friday morning. Showers will end across much of the region from northwest to southeast overnight. Showers will linger along the coastal areas and north central Florida through Friday morning. Northerly winds will increase along the coast to 20 to 25 mph with gusts to 35-40 mph by daybreak, and a Wind Advisory may be needed.

A large range of temperatures will exist today due to the frontal boundary bisecting the region this afternoon, with highs ranging from near 50 degrees along the Altamaha River the lower 80s across Marion County. Overnight lows will be much cooler in the mid to upper 30s across southeast Georgia, and near 40 to the mid 40s across northeast Florida. Wind chills will be in the upper 20s to around 30 across southeast Georgia and the low to mid 30s across much of northeast Florida late tonight into Friday morning.

SHORT TERM [Friday Through Saturday].

High pressure builds in from the northwest on Friday as a dry, colder airmass settles over the region. Gusty winds develop along the coast due to strengthening northerly flow over the coastal waters. Skies clear from northwest to southeast on Friday. High temperatures on Friday will be below average in the 50s. Low temperatures Friday night into Saturday morning drop to freezing and below freezing across southeast Georgia and much of inland northeast Florida. A Freeze Watch will likely be needed. Gusty northerly coastal winds will keep above freezing temperatures near the Atlantic coast. Temperatures begin to rebound on Saturday as the high weakens and builds to the north.

LONG TERM [Sunday Through Wednesday].

Surface high pressure moves off the eastern seaboard on Sunday. Rain returns Monday through Wednesday as a low pressure system moves across the midwest and its associated fronts move through the southeastern US. Temperatures will be above normal due to prevailing southwesterly flow ahead of the front.

MARINE.

A frontal boundary positioned across central Florida and the adjacent Atlantic waters will lift northward as a warm front this afternoon as low pressure develops over the Georgia waters. Low pressure will then strengthen as it accelerates northeastward off the southeast U.S. coast tonight and Friday. A Gale Warning is in effect for all the waters this evening through Friday night. High pressure will then weaken as it moves eastward towards the Carolina coast on Saturday night and Sunday, allowing northerly winds to gradually subside. A coastal trough will then develop over our near shore waters late this weekend and will develop into a warm front as low pressure strengthens over the southern Plains states and progresses northeastward. Rip Currents: Moderate risk of rip currents today, and a High risk of rip currents at the beaches on Friday.

HYDROLOGY.

Minor to moderate river flooding continues for the Altamaha River basin.

PRELIMINARY POINT TEMPS/POPS.

AMG 37 50 28 56 34 / 90 0 0 0 0 SSI 41 49 35 55 43 / 90 10 0 0 0 JAX 44 53 35 59 43 / 90 10 0 0 0 SGJ 48 53 42 60 48 / 80 20 0 0 0 GNV 44 54 33 62 41 / 60 10 0 0 0 OCF 48 55 35 65 43 / 60 10 0 0 0

JAX WATCHES/WARNINGS/ADVISORIES. FL . None. GA . None. AM . Small Craft Advisory until 6 PM EST this evening for 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-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.

Gale Warning from 6 PM this evening to 3 AM EST Saturday for 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-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
DMSF1 22 mi56 min 64°F
BLIF1 23 mi62 min 62°F 1020.6 hPa62°F
LTJF1 23 mi62 min 61°F 58°F
NFDF1 23 mi56 min 59°F
SAUF1 - St. Augustine, FL 23 mi26 min N 15 G 17 62°F 64°F1018.6 hPa (-2.5)
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 25 mi56 min 60°F 63°F1019.7 hPa
41117 29 mi26 min 64°F5 ft
GTXF1 - Guana Tolomato Matanzas Reserve, FL 35 mi101 min N 6 65°F 1021 hPa63°F
FRDF1 - 8720030 - Fernandina Beach, FL 43 mi56 min 63°F 63°F1020.1 hPa
41112 - Offshore Fernandina Beach, FL (132) 47 mi56 min 60°F5 ft

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Jacksonville Naval Air Station, FL12 mi33 minNNE 76.00 miOvercast with Haze66°F57°F73%1019 hPa
Northeast Florida Regional Airport, FL16 mi30 minN 102.00 miFog/Mist64°F60°F87%1018.9 hPa
Cecil Airport, FL18 mi36 minE 67.00 miOvercast68°F57°F69%1019.3 hPa
Jacksonville Craig Municipal Airport, FL19 mi33 minNNE 76.00 miFog/Mist62°F57°F86%1019.3 hPa
Mayport Naval Station - Adm David L. McDonald Field, FL24 mi34 minN 107.00 miOvercast60°F55°F86%1019.4 hPa

Link to 5 minute data for KNIP

Wind History from NIP (wind in knots)
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Last 24hrSW5SE6S5SE4NE12NE14
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1 day agoSE5SE4S4SE44SE7N5N4CalmCalmSE3S5S4S5S4SW5SW5W5W8W3N10CalmSE53
2 days agoE5NE5NE8NE5NE6NE7NE6NE5NE6CalmCalmCalmNW5N5N5N5E3N3N5CalmSE3S6S10S8

Tide / Current Tables for Julington Creek, Florida
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Julington Creek
Click for Map
Thu -- 04:06 AM EST     6.75 feet Low Tide
Thu -- 05:12 AM EST     Moonrise
Thu -- 07:02 AM EST     Sunrise
Thu -- 10:09 AM EST     7.58 feet High Tide
Thu -- 03:43 PM EST     Moonset
Thu -- 04:49 PM EST     6.88 feet Low Tide
Thu -- 06:18 PM EST     Sunset
Thu -- 10:17 PM EST     7.43 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.176.96.86.76.877.27.47.57.67.57.47.27.176.96.977.27.37.47.47.4

Tide / Current Tables for Green Cove Springs, St. Johns River, Florida
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Green Cove Springs
Click for Map
Thu -- 04:46 AM EST     4.17 feet Low Tide
Thu -- 05:12 AM EST     Moonrise
Thu -- 07:02 AM EST     Sunrise
Thu -- 10:49 AM EST     5.03 feet High Tide
Thu -- 03:44 PM EST     Moonset
Thu -- 05:26 PM EST     4.29 feet Low Tide
Thu -- 06:18 PM EST     Sunset
Thu -- 10:57 PM EST     4.87 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.74.54.44.34.24.24.34.54.74.9554.94.84.74.64.44.34.34.54.64.74.84.9

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Jacksonville, FL (13,3,4,5)
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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.