Wednesday, July15, 2020
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Marine Weather and Tides
Green Cove Springs, 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 6:34AMSunset 8:30PM Wednesday July 15, 2020 4:19 AM EDT (08:19 UTC) Moonrise 1:28AMMoonset 3:03PM Illumination 26% Phase: Waning Crescent; Moon at 25 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:202007151430;;870553 Fzus52 Kjax 150628 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 228 Am Edt Wed Jul 15 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. Amz450-452-454-151430- 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- 228 Am Edt Wed Jul 15 2020
Today..Northwest winds around 5 knots becoming east southeast in the afternoon. Seas 1 to 2 feet. Dominant period 8 seconds. Inland waters smooth.
Tonight..East southeast winds 5 to 10 knots. Seas 2 feet. Dominant period 8 seconds. Inland waters a light chop.
Thursday..East winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 8 seconds. Inland waters a light chop.
Thursday night..East winds around 10 knots. Seas 2 to 3 feet. Dominant period 4 seconds. Inland waters a light chop.
Friday..East winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 4 seconds. Inland waters a light chop. A chance of showers and Thunderstorms.
Friday night and Saturday..East southeast winds 10 to 15 knots. Seas 2 to 3 feet. Showers and Thunderstorms likely.
Saturday night and Sunday..East southeast winds 10 to 15 knots. Seas 2 to 3 feet. A chance of. A chance of Thunderstorms in the morning.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 228 Am Edt Wed Jul 15 2020
Synopsis.. High pressure will reside northeast of the waters through the end of the week with light winds becoming easterly and drier conditions offshore. An easterly wave will pass south our local waters late Friday into Saturday, with increasing shower and Thunderstorm coverage expected this weekend.
Gulf stream.. The approximate location of the west wall of the gulf stream as of jul 14, 2020 at 1200 utc... 59 nautical miles east of flagler beach. 72 nautical miles east southeast of saint augustine beach. 67 nautical miles east northeast of jacksonville beach. 71 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Green Cove Springs, FL
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location: 29.99, -81.66     debug


Area Discussion for - Jacksonville, FL
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FXUS62 KJAX 150719 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 319 AM EDT Wed Jul 15 2020

NEAR TERM [Through Tonight].

Over the course of today initially southwesterly flow will back around to become more out of the east and northeast as the influence of high pressure ridging extending outwards from out of the northeast. Showers and storms will build throughout the day, mostly in conjunction with the diurnal sea breeze and fueled by outflow collisions which will be able to extend further due to weaker prevailing surface winds, and then . High temperatures today will range within the lower to mid 90s over northeast Florida and in the mid to upper 90s over southeast Georgia. Overnight low temperatures will range within the mid to upper 70s, with the warmest temps occuring along the coastline.


SHORT TERM [Thursday Through Friday].

High pressure ridge builds in north of the region with an onshore/breezy easterly flow at the coast and along with a drier airmass aloft with Precipitable Water Amounts (PWATs) around 1.5 inches or so will support less convection both days. This flow pattern will tend to shift any scattered showers and storms that develop to further inland areas of SE GA/NE FL with the best chances along the I-75 corridor during the afternoon/evening hours. Max Temps will be closer to normal values around 90 degrees along the coast/I-95 corridor and lower to middle 90s inland/I-75 corridor with Heat Indices peaking lower than today in the 100-105 degree range. Overnight lows in the lower/middle 70s inland and upper 70s/near 80 along the coast.

LONG TERM [Saturday Through Wednesday].

Longer range models suggesting a return to a wetter pattern, especially across NE FL as mid/upper level trof over the Bahamas will push westward into the FL Peninsula on Saturday with deep moisture and a return to more numerous showers/storms across NE FL with lesser convection over SE GA. Temps will be closer to normal values with Highs mainly in the lower 90s. The mid/upper level trof and moisture will track into the Gulf of Mexico for Sun/Mon/Tue with a slight reduction in rainfall chances but at least climo/scattered type afternoon showers/storms will continue with the best chances over inland areas as steering flow remains out of the East/Southeast as weak High Pressure ridge axis remains just north of the area across South GA. Temps continue near normal levels through the period. The cooler temps aloft at -7C/-8C at 500 mb will help to support greater instability and steeper lapse rates aloft and stronger storms with gusty winds are expected along with PWATs closer to 2 inches which will support locally heavy rainfall as well.

AVIATION. [Through 06Z Thursday]

Last remnants of overnight convection have dissipated making for VFR conditions throughout much of the region on into the early afternoon. Winds will initially be out of SW and then shift about to become out of the E and NE by the end of the day. Showers and storms will build throughout the day, mostly in conjunction with the diurnal sea breeze and fueled by outflow collisions. Thunderstorms are expected to clear from the coastal counties in the early evening and linger over inland areas later into the night.

MARINE.

High pressure will reside northeast of the waters through the end of the week with light winds becoming easterly and drier conditions offshore. An easterly wave will pass south our local waters late Friday into Saturday, with increasing shower and thunderstorm coverage expected this weekend.

Rip Currents:

FIRE WEATHER.

High pressure will move in from the northeast Today with southwest winds shifting to the east and scattered showers coverage and isolated storms coverage staying west of I-95. Minimum RH values will be in the 35-45 percent range over Southeast Georgia areas, but will stay above critical levels. Easterly, onshore flow will continue on Thursday with scattered showers and isolated storms over far inland areas with best chances along the I-75 corridor of Northeast Florida.

PRELIMINARY POINT TEMPS/POPS.

AMG 95 74 95 72 94 / 40 10 20 0 20 SSI 91 78 88 78 88 / 10 10 0 0 10 JAX 94 75 92 74 91 / 20 10 10 0 20 SGJ 91 75 89 76 88 / 20 10 10 10 30 GNV 93 73 94 72 92 / 50 10 20 0 40 OCF 92 74 94 72 92 / 40 20 30 10 40

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
SAUF1 - St. Augustine, FL 23 mi140 min S 5.1 G 6 77°F 84°F1017 hPa (-1.5)74°F
JXUF1 25 mi50 min 86°F
DMSF1 28 mi50 min 86°F
NFDF1 28 mi140 min WSW 5.1 G 6
BLIF1 29 mi110 min 1017.3 hPa
41117 31 mi54 min 84°F2 ft
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 31 mi50 min 85°F
GTXF1 - Guana Tolomato Matanzas Reserve, FL 32 mi95 min WSW 1.9 75°F 1018 hPa73°F
FRDF1 - 8720030 - Fernandina Beach, FL 48 mi50 min 86°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 Naval Air Station, FL17 mi27 minN 010.00 miPartly Cloudy77°F73°F88%1015.9 hPa
Northeast Florida Regional Airport, FL18 mi24 minWSW 310.00 miA Few Clouds76°F73°F94%1016.6 hPa
Cecil Airport, FL20 mi25 minN 010.00 miFair75°F71°F89%1016.3 hPa
Keystone Airpark, FL23 mi25 minN 010.00 miFair75°F75°F100%1016.6 hPa

Link to 5 minute data for KNIP

Wind History from NIP (wind in knots)
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Last 24hrW8W8W3W4NW4CalmE3--SE5SE6N21
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SE95SE4S9SW14CalmSW5W5SW6W6W7Calm
1 day agoSW6S7SW5SW8SW8W964W7SW11SW10
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2 days agoSW4W4CalmCalmW4CalmS6S8W15SW6
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NW846NW5W4NW4E3NW3W5W11SW9W9SW7W8

Tide / Current Tables for Green Cove Springs, St. Johns River, Florida
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Green Cove Springs
Click for Map
Wed -- 02:27 AM EDT     Moonrise
Wed -- 04:15 AM EDT     4.37 feet Low Tide
Wed -- 06:36 AM EDT     Sunrise
Wed -- 09:40 AM EDT     4.86 feet High Tide
Wed -- 04:02 PM EDT     Moonset
Wed -- 04:28 PM EDT     4.21 feet Low Tide
Wed -- 08:28 PM EDT     Sunset
Wed -- 10:33 PM EDT     4.97 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.74.64.54.44.44.44.64.74.84.84.94.84.64.54.34.34.24.24.44.64.84.955

Tide / Current Tables for Black Creek, S.C.L. RR. bridge, Florida
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Black Creek
Click for Map
Wed -- 02:27 AM EDT     Moonrise
Wed -- 04:26 AM EDT     4.93 feet Low Tide
Wed -- 06:36 AM EDT     Sunrise
Wed -- 08:52 AM EDT     5.46 feet High Tide
Wed -- 04:03 PM EDT     Moonset
Wed -- 04:29 PM EDT     4.88 feet Low Tide
Wed -- 08:29 PM EDT     Sunset
Wed -- 09:57 PM EDT     5.62 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.35.15.154.955.15.35.55.55.45.35.2554.94.94.95.15.35.55.65.65.6

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 (4,6,7,8)
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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 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.