Tuesday, September17, 2019 L-36.com


Marine Weather and Tides
Jacksonville Beach, FL

Version 3.4
NOTICE
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:09AMSunset 7:30PM Tuesday September 17, 2019 5:11 PM EDT (21:11 UTC) Moonrise 8:44PMMoonset 9:03AM Illumination 86% Phase: Waning Gibbous; Moon at 18 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 Coastal Waters From Fernandina Beach To St. Augustine Fl Out 20 Nm- Coastal Waters From St. Augustine To Flagler Beach Fl Out 20 Nm- 416 Pm Edt Tue Sep 17 2019
.small craft advisory in effect through Thursday morning...
Tonight..East northeast winds 10 to 15 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 11 seconds. Inland waters a light chop.
Wednesday..East northeast winds 15 to 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet building to 6 to 9 feet with occasional seas up to 11 feet in the afternoon. Dominant period 12 seconds. Inland waters a moderate chop. A chance of showers and a slight chance of Thunderstorms.
Wednesday night..East northeast winds 15 to 20 knots. Seas 6 to 9 feet with occasional seas up to 11 feet. Dominant period 12 seconds. Inland waters choppy. A slight chance of showers and Thunderstorms.
Thursday..Northeast winds 20 to 25 knots with gusts to around 35 knots. Seas 7 to 10 feet with occasional seas up to 13 feet. Dominant period 12 seconds. Inland waters choppy. A chance of showers and a slight chance of Thunderstorms.
Thursday night..East northeast winds 20 to 25 knots with gusts to around 35 knots. Seas 7 to 10 feet with occasional seas up to 13 feet. Dominant period 12 seconds. Inland waters choppy. A chance of showers.
Friday..East northeast winds 15 to 20 knots. Seas 6 to 9 feet with occasional seas up to 11 feet. Dominant period 13 seconds. Inland waters choppy. A chance of showers.
Friday night..East winds 15 to 20 knots. Seas 7 to 10 feet with occasional seas up to 13 feet. A slight chance of showers.
Saturday..East winds 10 to 15 knots. Seas 6 to 9 feet with occasional seas up to 11 feet. A slight chance of showers.
Saturday night and Sunday..East winds 10 to 15 knots. Seas 5 to 7 feet with occasional seas up to 9 feet.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 416 Pm Edt Tue Sep 17 2019
Synopsis.. Onshore winds will weaken overnight and into tomorrow morning before strengthening out of the northeast with the passage of a cold front moving ashore. Ahead of the front will be showers with isolated Thunderstorms followed by drier conditions, but the northeasterly winds are expected to remain strong enough to qualify for small craft conditions until the end of the week.
Gulf stream.. The approximate location of the west wall of the gulf stream as of sep 17, 2019 at 1200 utc... 67 nautical miles east northeast of flagler beach. 72 nautical miles east of saint augustine beach. 78 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 Jacksonville Beach, FL
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location: 30.29, -81.36     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 172045
afdjax
area forecast discussion
national weather service jacksonville fl
445 pm edt Tue sep 17 2019

Near term
Dry conditions with mostly clear skies have resulted in fairly
high temperatures today
low temperatures for tonight are expected to be in the upper 60s
and lower 70s for inland areas and in the mid to upper 70s for
locations along the coast.

Short term Wednesday and Thursday
An approaching front from out of the northeast will bring in
scattered showers and isolated thunderstorms across southeast
georgia and northeast florida on Wednesday, with the coastal areas
being impacted earlier in the afternoon and then pressing further
inland later in the afternoon and early evening. On Thursday, high
pressure with drier air will move in and inhibit convective
developments for the end of the week. However, isolated showers
can still possibly develop on Thursday with the coast being the
most likely location to be impacted. Breezy conditions are also
expected for Thursday, with winds anticipated to reach 20-25 mph
with gusts upwards of 30-35 mph, with wind speeds for inland
northeast florida potentially reaching 15-20 mph with gusts of 25+
mph, with areas further inland experiencing less gusty conditions.

The approaching front will bring lower temperatures into the
region as it passes through, with high temps on Wednesday in the
upper 80s and lower 90s, dropping down into the mid to lower 80s
on Thursday. Overnight low temperatures will follow a similar
trend with temps dropping from the low 70s & upper 60s for inland
areas Wednesday night down to the lower to mid 70s Thursday
night, with lows along the coast remaining in the lower 70s.

Long term Friday through Monday
A mostly dry weekend is expected as high pressure continues to
extend over southeast georgia and northeast florida. Scattered
diurnal showers are possible on Friday and Saturday forming over
the water and moving onshore, primarily affecting areas along the
coast. Prevailing flow will shift about over the course of the
weekend as the high pressure system to the north moves towards the
northeast-east. High daily temperatures will rise through the
weekend and into the beginning of next week as a slight warming
trend raises temps from the mid 80s on Friday into the lower 90s
by Monday. MAX temps for coastal areas will remain in the mid to
upper 80s throughout the four day span for coastal areas.

Overnight low temperatures will range between the lower and upper
60s for inland areas and in the lower 70s along the shoreline and
close to the st johns river.

Aviation
Vfr conditions will prevail at the regional terminals through at
least 06z. Sustained northeasterly surface speeds of 10-15 knots
will prevail at the regional terminals through around 22z. Light
easterly winds will then prevail overnight at the coastal
terminals, with calm winds expected by 03z inland. Brief periods
of MVFR visibilities will be possible at vqq and gnv after 06z.

MVFR ceilings may develop at ssi towards 12z as sustained
northeasterly surface winds increase to 10-15 knots with higher
gusts. Scattered showers and possibly an embedded thunderstorm
may also impact ssi during the morning hours on Wednesday, with
increasing northeasterly surface winds expected at the duval
county terminals and sgj after 15z, accompanied by increasing
coverage of showers and embedded thunderstorms thereafter.

Marine
Onshore winds are expected to weaken slightly overnight and into
tomorrow morning before strengthening again out of the northeast
with the passage of a cold front moving ashore. Ahead of the front
will be showers with isolated thunderstorms followed by drier
conditions, but the northeasterly winds are expected to remain
strong enough to qualify for small craft conditions until the end
of the week.

Rip currents: high risk of rip currents are forecasted to remain
in effect for the next few days.

Preliminary point temps pops
Amg 73 89 65 84 10 40 10 0
ssi 77 84 72 81 40 60 20 20
jax 74 88 71 83 30 50 10 20
sgj 75 86 73 82 20 40 20 40
gnv 70 91 69 85 0 60 10 20
ocf 70 92 70 86 0 50 20 10

Jax watches warnings advisories
Fl... High rip current risk through Thursday morning for coastal duval-
coastal flagler-coastal nassau-coastal st. Johns.

Ga... High rip current risk through Thursday morning for coastal
camden-coastal glynn.

Am... Small craft advisory until 8 am edt Thursday for 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.

Corless peterson zibura


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 8 mi54 min NE 9.9 G 13 85°F 84°F1014.3 hPa
LTJF1 8 mi54 min 85°F
BLIF1 11 mi54 min NE 9.9 G 12 89°F 1015 hPa65°F
DMSF1 12 mi54 min 85°F
JXUF1 14 mi54 min 85°F
NFDF1 16 mi54 min ENE 8.9 G 12 89°F 1015.7 hPa
41117 25 mi42 min 84°F6 ft
FRDF1 - 8720030 - Fernandina Beach, FL 27 mi54 min NNE 2.9 G 8.9 94°F 85°F1014.5 hPa
41112 - Offshore Fernandina Beach, FL (132) 29 mi42 min 84°F4 ft
SAUF1 - St. Augustine, FL 30 mi72 min N 12 G 14 83°F 85°F1014 hPa (-1.0)
GTXF1 - Guana Tolomato Matanzas Reserve, FL 44 mi87 min N 8 84°F 1016 hPa80°F

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mayport Naval Station - Adm David L. McDonald Field, FL8 mi80 minNE 1210.00 miA Few Clouds89°F68°F50%1013.7 hPa
Jacksonville Craig Municipal Airport, FL9 mi79 minN 1010.00 miFair91°F57°F33%1013.7 hPa
Jacksonville Naval Air Station, FL17 mi79 minNNE 1110.00 miA Few Clouds94°F62°F35%1013.3 hPa
Jacksonville International Airport, FL22 mi76 minENE 1310.00 miA Few Clouds93°F64°F38%1013.2 hPa
Northeast Florida Regional Airport, FL22 mi76 minN 910.00 miFair86°F0°F%1014.2 hPa
Fernandina Beach Municipal Airport, FL23 mi37 minE 1010.00 miFair88°F69°F55%1013.5 hPa

Link to 5 minute data for KNRB

Wind History from NRB (wind in knots)
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Last 24hr------CalmCalmCalmCalm----------W3W5W5W6NW5--N6N7NE12NE11NE12NE12
1 day agoNE21
G25
NE19
G26
NE19NE16NE16--------N13--N15--NW6N7--N9--N12N11N15N14
G21
N12N13
2 days agoNE17NE18NE19NE19NE19----------------NE17NE20NE24
G30
--NE12NE15NE19
G29
NE20
G27
NE19
G27
NE17N15
G21

Tide / Current Tables for Jacksonville Beach, Florida
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Jacksonville Beach
Click for Map
Tue -- 04:36 AM EDT     -0.15 feet Low Tide
Tue -- 07:10 AM EDT     Sunrise
Tue -- 10:03 AM EDT     Moonset
Tue -- 10:42 AM EDT     4.89 feet High Tide
Tue -- 04:57 PM EDT     0.10 feet Low Tide
Tue -- 07:28 PM EDT     Sunset
Tue -- 09:43 PM EDT     Moonrise
Tue -- 11:00 PM EDT     4.62 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.131.80.7-0-0.10.61.834.14.74.94.53.52.31.20.40.10.51.52.63.64.34.6

Tide / Current Tables for St. Johns River Entrance, Florida Current
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St. Johns River Entrance
Click for Map
Tue -- 12:56 AM EDT     -0.00 knots Slack
Tue -- 03:31 AM EDT     -1.99 knots Max Ebb
Tue -- 07:10 AM EDT     Sunrise
Tue -- 07:22 AM EDT     0.00 knots Slack
Tue -- 10:03 AM EDT     Moonset
Tue -- 10:03 AM EDT     2.15 knots Max Flood
Tue -- 01:12 PM EDT     -0.00 knots Slack
Tue -- 03:48 PM EDT     -2.15 knots Max Ebb
Tue -- 07:28 PM EDT     Sunset
Tue -- 07:56 PM EDT     0.00 knots Slack
Tue -- 09:43 PM EDT     Moonrise
Tue -- 10:28 PM EDT     1.78 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.8-0.1-1.2-1.9-1.9-1.6-1.1-0.40.71.72.11.81.10.2-0.9-1.9-2.1-1.8-1.4-0.80.111.71.7

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Jacksonville, FL (17,4,5,8)
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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 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.