Saturday, January23, 2021
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Marine Weather and Tides
Butler Beach, FL

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 7:17AMSunset 5:56PM Saturday January 23, 2021 7:32 PM EST (00:32 UTC) Moonrise 1:40PMMoonset 2:50AM Illumination 81% Phase: Waxing Gibbous; Moon at 11 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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AMZ454 Expires:202101241030;;373567 Fzus52 Kjax 231933 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 233 Pm Est Sat Jan 23 2021 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. Amz450-452-454-241030- 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- 233 Pm Est Sat Jan 23 2021
Tonight..Northeast winds 10 to 15 knots. Seas 3 to 4 feet with a dominant period 5 seconds. A light chop on the intracoastal waters.
Sunday..Northeast winds 10 to 15 knots diminishing to 5 to 10 knots in the afternoon. Seas 3 to 4 feet with a dominant period 6 seconds. A moderate chop on the intracoastal waters.
Sunday night..East winds 5 to 10 knots becoming southeast after midnight. Seas 2 to 3 feet with a dominant period 5 seconds. Mostly smooth on the intracoastal waters.
Monday..South winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Seas 3 to 4 feet. A moderate chop on the intracoastal waters.
Monday night..Southwest winds 10 to 15 knots. Seas 3 to 4 feet. A light chop on the intracoastal waters.
Tuesday..Southwest winds 10 to 15 knots. Seas 3 to 4 feet. A moderate chop on the intracoastal waters. Slight chance of showers.
Tuesday night..Southwest winds 5 to 10 knots. Seas 2 to 3 feet. Chance of showers and slight chance of Thunderstorms.
Wednesday..Southwest winds 5 to 10 knots. Seas 1 to 2 feet. Chance of showers.
Wednesday night..Southwest winds 10 to 15 knots becoming west 15 to 20 knots after midnight. Seas 2 to 3 feet. Chance of showers and slight chance of Thunderstorms.
Thursday..Northwest winds 15 to 20 knots. Seas 3 to 4 feet.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 233 Pm Est Sat Jan 23 2021
Synopsis.. A weak cold front will continue to move southward across the florida peninsula this afternoon. Caution level winds over offshore waters will drop off in the evening hours. High pressure will weaken over waters on Sunday as high pressure ridging extends over the florida peninsula from out of the east. Southerly winds will increase over our waters on Monday and will shift to southwesterly Monday evening ahead of a cold front that will be entering the southeastern states. This front will then stall over the georgia waters by late Tuesday as a wave of low pressure develops near the area by midweek.
Gulf stream.. The approximate location of the west wall of the gulf stream as of jan 23, 2021 at 1200 utc... 54 nautical miles east northeast of flagler beach. 61 nautical miles east of saint augustine beach. 74 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 Butler Beach, FL
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location: 29.77, -81.26     debug


Area Discussion for - Jacksonville, FL
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FXUS62 KJAX 232331 AFDJAX

Area Forecast Discussion National Weather Service Jacksonville FL 631 PM EST Sat Jan 23 2021

AVIATION. [Through 00Z Monday]

Northeast surge of cooler/drier airmass has shifted lower CIGS south of the TAF sites for now, although will start to shift back northward late tonight with MVFR CIGS back at GNV by 06z and SGJ by 09z and VQQ by 12z, then JAX/CRG by 15-18z. For now the Northeast flow will remain just enough to prevent any fog formation at the TAF sites around sunrise Sunday morning but will need to monitor this for possible changes.

PREV DISCUSSION [314 PM EST].

NEAR TERM [Through Tonight].

Light showers and sprinkles will continue to move through the region this afternoon and then dissipate in the evening. Frontal boundary to the north will start to weaken overnight, with overnight low temperatures dropping down into 40s over southeast Georgia and in the 50s over northeast Florida. Cloud cover is expected to build back in overnight from out of the south. No significant fog developments are expected.

SHORT TERM [Sunday Through Monday Night].

Chances for light showers will continue on into Sunday as the cold front boundary from out of the north stalls within the vicinity of the Florida-Georgia border before drifting off to the north over the course of the day. High pressure ridging will build up from out of the south, leading noticeably drier and warmer conditions on Monday. The beginning of next week will see the start of a brief warming trend with high temperatures rising into the mid to upper 70s and even in the lower 80s on Monday. Overnight low temperatures will similarly warm with min temps rising from out of the 50s on Sunday night up into the 60s on Monday.

LONG TERM [Tuesday Through Saturday].

Shower and thunderstorm activity expected to build in by midweek, primarily over southeastern Georgia and nearby portions of northeast Florida as a frontal boundary from out of the north stalls over central Georgia. This area of low pressure will become displaced as a second front from moves in from out of the west and brings in cooler temperatures and drier conditions on Thursday, continuing through into the weekend. The brief warming trend will end after the frontal passage, with overnight low temperatures dropping into the 30s and 40s for the end of the week.

MARINE.

A weak cold front will continue to move southward across the Florida peninsula this afternoon. Caution level winds over offshore waters will drop off in the evening hours. High pressure will weaken over waters on Sunday as high pressure ridging extends over the Florida peninsula from out of the east. Southerly winds will increase over our waters on Monday and will shift to southwesterly Monday evening ahead of a cold front that will be entering the southeastern states. This front will then stall over the Georgia waters by late Tuesday as a wave of low pressure develops near the area by midweek.

Rip Currents: Moderate Risk

PRELIMINARY POINT TEMPS/POPS.

AMG 42 61 52 74 61 / 0 10 0 0 10 SSI 48 61 54 71 59 / 0 10 0 0 0 JAX 52 66 56 77 60 / 10 10 0 0 0 SGJ 56 67 58 76 60 / 10 10 0 0 0 GNV 52 70 55 79 58 / 10 0 0 0 0 OCF 54 73 57 81 59 / 10 10 0 0 0

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 6 mi32 min N 15 G 16 59°F 60°F1020.8 hPa (+0.6)55°F
GTXF1 - Guana Tolomato Matanzas Reserve, FL 8 mi107 min N 8 58°F 1021 hPa54°F
41117 19 mi36 min 62°F3 ft
LTJF1 43 mi44 min 59°F 52°F
JXUF1 44 mi44 min 58°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 44 mi44 min NE 14 G 16 58°F 59°F1021.6 hPa
BLIF1 45 mi44 min NNE 6 G 8 57°F 1022.1 hPa57°F
DMSF1 45 mi44 min 59°F
NFDF1 48 mi44 min NE 2.9 G 7 55°F 1021.1 hPa51°F

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Northeast Florida Regional Airport, FL14 mi36 minN 1010.00 miOvercast58°F54°F87%1021.1 hPa

Link to 5 minute data for KSGJ

Wind History from SGJ (wind in knots)
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Last 24hrS5S5CalmNE3CalmCalmNE3N7N6N6N10N9N8N9N9N8N8N13NE11N8N11N10N10N10
1 day agoW6SW8SW8SW8W7W10W8W8W7SW5SW7W6CalmSW5W3SW5SW3W4W5NW4CalmN7E4Calm
2 days agoSW3W6NW4SW6W8W5W7W5W3W4W4W4SW3W4W4SW6W9W9W8
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Tide / Current Tables for St. Augustine Beach, Florida (2)
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St. Augustine Beach
Click for Map
Sat -- 02:50 AM EST     Moonset
Sat -- 03:37 AM EST     4.47 feet High Tide
Sat -- 07:19 AM EST     Sunrise
Sat -- 10:12 AM EST     1.13 feet Low Tide
Sat -- 01:38 PM EST     Moonrise
Sat -- 03:55 PM EST     3.96 feet High Tide
Sat -- 05:54 PM EST     Sunset
Sat -- 10:14 PM EST     0.69 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.33.23.94.44.44.13.52.82.11.41.11.31.82.53.23.843.73.22.41.710.70.9

Tide / Current Tables for St. Augustine Beach, Florida
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St. Augustine Beach
Click for Map
Sat -- 02:50 AM EST     Moonset
Sat -- 03:47 AM EST     4.05 feet High Tide
Sat -- 07:19 AM EST     Sunrise
Sat -- 10:10 AM EST     0.82 feet Low Tide
Sat -- 01:38 PM EST     Moonrise
Sat -- 04:09 PM EST     3.18 feet High Tide
Sat -- 05:54 PM EST     Sunset
Sat -- 10:01 PM EST     0.36 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.92.73.43.943.73.12.41.71.10.80.91.41.92.52.93.232.51.81.10.60.40.6

Weather Map
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wmap_A
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
Ground Weather Radar Station




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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.