Monday, March19, 2018

Marine Weather and Tides
Hastings, FL

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
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.

Sunrise 7:27AMSunset 7:37PM Monday March 19, 2018 6:36 AM EDT (10:36 UTC) Moonrise 8:01AMMoonset 8:52PM Illumination 7% Phase: Waxing Crescent; Moon at 3 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- 337 Am Edt Mon Mar 19 2018
Today..South southwest winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 5 seconds. Inland waters a light chop. Showers in the morning. A chance of showers and Thunderstorms in the afternoon.
Tonight..South southwest winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 6 seconds. Inland waters a light chop. A chance of showers and Thunderstorms.
Tuesday..Southwest winds 15 to 20 knots. Seas 2 to 4 feet. Dominant period 5 seconds. Inland waters choppy. A chance of showers and Thunderstorms in the morning, then showers and Thunderstorms likely in the afternoon.
Tuesday night..West winds 20 to 25 knots with gusts to around 35 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 4 seconds. Inland waters rough.
Wednesday..West winds 20 to 25 knots with gusts to around 35 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters rough.
Wednesday night..Northwest winds 20 to 25 knots with gusts to around 35 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters rough.
Thursday..Northwest winds 15 to 20 knots becoming 5 to 10 knots in the afternoon. Seas 2 to 4 feet. Inland waters choppy.
Thursday night..North northwest winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a light chop.
Friday..North winds 5 to 10 knots becoming northeast in the afternoon. Seas 2 to 3 feet. Inland waters smooth.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 337 Am Edt Mon Mar 19 2018
Synopsis.. High pressure ridge across central florida will move into the western atlantic. A weak frontal boundary across the georgia waters will lift north of the area this afternoon. A stronger cold front will bring a good chance of showers and Thunderstorms on Tuesday with advisory conditions expected Tuesday through Wednesday night.

7 Day Forecast for Marine Location Near Hastings, FL
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location: 29.76, -81.56     debug

Area Discussion for - Jacksonville, FL
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Fxus62 kjax 190720
area forecast discussion
national weather service jacksonville fl
320 am edt Mon mar 19 2018

Severe thunderstorms possible today and Tuesday...

Short term Today and tonight... First wave of showers moved
across the area around midnight and weakened. Another area of
convection now upstream over the fl panhandle and SW ga will move
across NE fl SE ga early this morning as short wave aloft moves
east. After this early morning convection the area should get a
break during the late morning and early afternoon until heating
and increasing vertical wind shear aid additional convection late
this afternoon into tonight. A few storms may become severe
mainly over SE ga where a surface front will start to lift north
as a warm front. Capes are progged to exceed 2000 j kg with
increasing shear and helicity by late afternoon. Severe threats
will include the possibility of damaging winds... Tornadoes... And
large hail.

Short term (Tuesday through Thursday)
Monday's convection (especially if it persists into early Tuesday
morning) could affect what transpires on Tuesday, but the
dynamics remain strong and Tuesday remains the most concerning
timeframe for severe weather (especially across northeast florida)
as the cold front moves through our area. Theta-e ridge axis
moves into florida Tuesday morning, and pwats will rise to near
1.50-1.60 inches - well above the 90th percentile and at or above
daily MAX value for most dates in mid-march. A potent shortwave is
progged to dive into the lower mississippi river valley and into
the florida panhandle by early afternoon. Deep layer shear remains
strong with 50 to 60 knots between 0-6km (and 30+ knots between
0-3km) as the front moves through during this timeframe. Breezy
southwest winds could reach wind advisory levels, and with the
surge of moisture in this flow, cloud cover could limit sbcape
some. However, MLCAPE mucape values are still on the order of
2000+ j kg so there doesn't look to be much trouble with
instability barring the influence of ongoing morning convection.

As a result, a squall line is expected to develop along the front
with embedded severe thunderstorms. Isolated supercell development
is possible ahead of the front, especially south of i-10 by early
to mid-afternoon. Forecast soundings south of the i-10 corridor
this timeframe look similar to yesterday's solutions with enough
srh capable of strong rotating updrafts. Damaging winds, large
hail and a few tornadoes are all possible. Localized flooding from
heavy rainfall could also become a concern, though storm motion
should remain fairly fast. The severe threat will end from
northwest to southeast with the front clearing north central
florida counties and the southeast georgia coast by early evening.

Low pressure deepens as it moves offshore and toward the northeast,
while the upper level trough also deepens as it moves southward.

Clearing skies and gusty northwesterly winds expected throughout
the day with high temperatures in the low to mid 60s. Northwest
flow aloft and at the surface will continue through Thursday,
though winds will be a lighter. Guidance for overnight lows both
nights have come up a few degrees, with lows generally around 38
to 40 degrees inland, mid 40s along the coast.

Long term (Friday through Monday)
Upper level flow will remain northwesterly through Saturday, and
surface flow will shift around and become light and variable as
surface high pressure moves eastward on Friday. Temperatures will
rebound to near 70, with overnight lows in the mid 40s to near
50. Surface high moves southeast into the atlantic on Saturday as
another surface low pressure develops and moves into the mid-
atlantic. High temperatures will warm into the mid 70s to low 80s
Saturday through Monday, with localized atlantic seabreeze keeping
temperatures at the coast slightly cooler. Upper level flow turns
more zonal as an upper level trough deepens across the northeast.

Trailing cold front from the surface low may be able to reach our
northern zones but looks to dry out before it does. Have some
slight chance pops Sunday and Monday to account for this

Aviation Periods of showers and thunderstorms will affect ne
fl SE ga TAF sites today and tonight. Ifr and MVFR conditions
expected this morning especially in shower activity which will
become likely between 08z-12z. Expect a break withVFR conditions
prevailing late this morning and early afternoon before showers
redevelop by mid-afternoon .

Marine Sw winds will increase tonight with small craft advisory
conditions expected to develop Tuesday... Extending through at
least Wednesday night. Shower and thunderstorm activity will
become likely today through Tuesday with a cold front pushing
across the waters Tuesday night. Winds and seas will decrease
late Thursday through Friday.

Rip currents: low risk through Tuesday due to offshore winds.

Preliminary point temps pops
Amg 77 65 79 47 40 50 70 10
ssi 74 64 76 53 70 50 60 10
jax 80 66 82 50 90 40 60 0
sgj 79 66 79 50 90 30 60 0
gnv 79 67 79 48 90 50 70 0
ocf 80 68 79 50 90 40 70 0

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... None.

Zibura elsenheimer

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RCYF1 3 mi48 min 67°F
SAUF1 - St. Augustine, FL 17 mi36 min SSW 5.1 G 6 67°F 63°F1008.9 hPa (-1.9)
GTXF1 - Guana Tolomato Matanzas Reserve, FL 19 mi111 min SSW 1.9 67°F 1012 hPa65°F
41117 30 mi44 min 64°F1 ft
JXUF1 41 mi48 min 65°F
DMSF1 43 mi48 min 65°F
LTJF1 43 mi48 min 68°F 66°F
BLIF1 44 mi48 min SW 5.1 G 5.1 67°F 1009.4 hPa67°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 45 mi48 min SW 2.9 G 5.1 67°F 64°F1008.6 hPa

Wind History for I-295 Bridge, St Johns River, FL
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1 day
2 days

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Northeast Florida Regional Airport, FL19 mi40 minW 410.00 miOvercast66°F64°F96%1009.2 hPa

Wind History from SGJ (wind in knots)
Last 24hrW5W7W9W11
1 day agoCalmCalmSW43CalmS76--S7
2 days agoCalmCalmS3SW4NW12W11W6W6W9

Tide / Current Tables for Palmetto Bluff, St. Johns River, Florida
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Palmetto Bluff
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Mon -- 04:59 AM EDT     5.11 feet High Tide
Mon -- 07:31 AM EDT     Sunrise
Mon -- 09:01 AM EDT     Moonrise
Mon -- 11:37 AM EDT     3.99 feet Low Tide
Mon -- 05:20 PM EDT     5.09 feet High Tide
Mon -- 07:37 PM EDT     Sunset
Mon -- 09:51 PM EDT     Moonset
Mon -- 11:56 PM EDT     3.99 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Tocoi, Florida
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Mon -- 04:28 AM EDT     0.97 feet High Tide
Mon -- 07:31 AM EDT     Sunrise
Mon -- 09:01 AM EDT     Moonrise
Mon -- 11:18 AM EDT     -0.12 feet Low Tide
Mon -- 04:51 PM EDT     0.95 feet High Tide
Mon -- 07:37 PM EDT     Sunset
Mon -- 09:51 PM EDT     Moonset
Mon -- 11:34 PM EDT     -0.14 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Weather Map and Satellite Images
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GOES 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 (6,6,7,8)
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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 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 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.