Thursday, November23, 2017 L-36.com


Marine Weather and Tides
Butler Beach, FL

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:55AMSunset 5:27PM Thursday November 23, 2017 9:36 AM EST (14:36 UTC) Moonrise 10:58AMMoonset 9:49PM Illumination 24% Phase: Waxing Crescent; Moon at 5 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 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- 911 Am Est Thu Nov 23 2017
.small craft advisory in effect through Friday morning...
Rest of today..Northeast winds 20 to 25 knots with gusts to around 35 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 7 seconds. Inland waters choppy. Rain and a slight chance of Thunderstorms.
Tonight..North northeast winds 20 to 25 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 7 seconds. Inland waters choppy. Rain late in the evening, then rain likely after midnight.
Friday..North winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 8 seconds. Inland waters a moderate chop. A chance of showers.
Friday night..North northwest winds 10 to 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 9 seconds. Inland waters a light chop. A slight chance of showers late in the evening.
Saturday and Saturday night..Northwest winds 5 to 10 knots. Seas 2 to 4 feet. Inland waters mostly smooth.
Sunday through Monday..Northeast winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a moderate chop.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 911 Am Est Thu Nov 23 2017
Synopsis.. Low pressure over the eastern gulf of mexico this morning will move east-northeastward across north central florida this afternoon, emerging into the atlantic waters this evening and accelerating northeastward later tonight. Onshore winds will increase, with winds and seas reaching small craft advisory levels by late this morning. Occasional wind gusts to gale force will be possible offshore later today and this evening. Weak high pressure centered over texas this morning will gradually build over our region by late Friday. A stronger high pressure center will then build into the southeastern states on Sunday and will then move eastward early next week.

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 231403
afdjax
area forecast discussion
national weather service jacksonville fl
903 am est Thu nov 23 2017

Update
Looking at visible satellite imagery a well formed baroclinic
leaf signature is moving across florida and the southeast which is
usually a sign of heavy rainfall. Indeed along the surface warm
front over marion county we have seen about 4 to 6 inches of
rainfall with an areal flood warning issued for that area. Expect
a rainy thanksgiving across the entire forecast area with the
heaviest rainfall from i-10 southward. A few embedded strong to
severe storms are possible especially along and near the warm
front as it moves northward. Eventually the surface low will move
east into the atlantic with rainfall sharply clearing from west to
east later this afternoon and this evening as the baroclinic leaf
feature moves into the atlantic.

Aviation
Ceilings and visibilities at all fields are in the MVFR to ifr
range and will remain down all day until the surface
low baroclinic leaf moves east into the atlantic this evening.

Marine
Low pressure over the eastern gulf of mexico early this morning will
move east-northeastward across north central florida this afternoon,
emerging into the atlantic waters early this evening.

This low pressure will then gradually strengthen as it accelerates
northeastward off the southeastern seaboard. Our local pressure
gradient will tighten quickly this morning as the low pressure
center approaches the florida nature coast, with northeasterly winds
strengthening to small craft advisory (sca) levels of 20-25 knots by
the late morning hours. Occasional gusts to gale force will be
possible late this afternoon and evening, mainly over the offshore
waters. Seas in the offshore waters will build to 6-8 feet later
this afternoon, with near shore seas peaking in the 5-7 foot range
from late this afternoon through early Friday morning. Winds will
shift to a northerly direction by late this evening, and offshore
seas will peak tonight in the 6-9 foot range. Winds and seas will
fall back to caution levels in the near shore waters during the late
morning hours on Friday, with seas remaining at SCA levels through
early Friday evening. Weak high pressure will then build into our
area Friday night and Saturday. Seas will remain at caution levels
of 4-6 feet on Friday night, with headlines not expected this
weekend as a stronger high pressure center builds to the north of
our region, resulting in some enhancement to northeasterly winds by
Sunday.

Rip currents: moderate risk expected through the weekend.

Preliminary point temps pops
Amg 59 47 64 43 60 40 20 10
ssi 63 51 63 49 80 70 30 10
jax 64 55 65 47 90 80 30 10
sgj 70 58 67 52 100 80 40 10
gnv 70 56 67 47 90 70 30 10
ocf 73 58 70 49 90 70 40 10

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... Small craft advisory until 10 pm est Friday 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.

Small craft advisory until 10 am est Friday 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.

Sandrik corless


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAUF1 - St. Augustine, FL 6 mi37 min N 18 G 21 66°F 69°F1014.2 hPa (+0.8)
GTXF1 - Guana Tolomato Matanzas Reserve, FL 8 mi112 min ENE 4.1 67°F 1015 hPa66°F
RCYF1 16 mi49 min 66°F
41117 19 mi45 min 70°F5 ft
LTJF1 43 mi49 min 63°F 61°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 44 mi49 min NNE 6 G 8 63°F 67°F1015.6 hPa
JXUF1 44 mi49 min 66°F
BLIF1 45 mi49 min NNE 12 G 18 63°F 1016.2 hPa63°F
DMSF1 45 mi49 min 66°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 mi41 minN 112.00 miHeavy Rain Fog/Mist64°F63°F96%1014.7 hPa

Wind History from SGJ (wind in knots)
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Last 24hrN8N8N8N9N13NE11NE8N8NE5NE5N6NE6CalmNE8NE8NE10NE11NE10NE11NE95N8N14N11
1 day agoSE8SE9SE11SE11S4S14SE6SE7S7CalmSE3NW7N9N12N6N3NE3--W3CalmNW3NW5NW3N5
2 days agoNE8E11E12E12E13E10E10E11E7E11E12E11E7E11E12SE9SE9SE7SE5CalmCalmSE6SE4Calm

Tide / Current Tables for Crescent Beach, Matanzas River, Florida
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Crescent Beach
Click for Map
Thu -- 12:02 AM EST     3.78 feet High Tide
Thu -- 06:07 AM EST     0.70 feet Low Tide
Thu -- 06:56 AM EST     Sunrise
Thu -- 10:57 AM EST     Moonrise
Thu -- 12:18 PM EST     4.42 feet High Tide
Thu -- 05:26 PM EST     Sunset
Thu -- 07:02 PM EST     0.80 feet Low Tide
Thu -- 09:49 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.83.52.81.91.30.90.70.91.72.83.64.14.44.33.72.821.51.10.81.11.92.73.2

Tide / Current Tables for St. Augustine Beach, Florida
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St. Augustine Beach
Click for Map
Thu -- 04:26 AM EST     1.05 feet Low Tide
Thu -- 06:56 AM EST     Sunrise
Thu -- 10:55 AM EST     5.06 feet High Tide
Thu -- 10:57 AM EST     Moonrise
Thu -- 05:19 PM EST     1.10 feet Low Tide
Thu -- 05:26 PM EST     Sunset
Thu -- 09:49 PM EST     Moonset
Thu -- 11:19 PM EST     4.19 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.832.11.41.11.11.52.33.34.24.85.14.73.92.921.41.11.21.62.43.13.84.2

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Jacksonville, FL (9,2,3,4)
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Ground Weather Radar Station Jacksonville, FL
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weather_mapweather_map weather_map

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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 numerious 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.