Tuesday, January22, 2019 L-36.com


Marine Weather and Tides
Islandia, FL

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:54AMSunset 5:47PM Tuesday January 22, 2019 8:13 AM EST (13:13 UTC) Moonrise 7:40PMMoonset 8:11AM Illumination 97% Phase: Waning Gibbous; Moon at 16 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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7 Day Forecast for Marine Location Near Islandia, FL
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location: 25, -77.5     debug


Area Discussion for - Miami-South Florida, FL
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Fxus62 kmfl 221112
afdmfl
area forecast discussion
national weather service miami fl
612 am est Tue jan 22 2019

Aviation
The main concern is high pressure building to the north is
forecast to increase the pressure gradient across the area. This
will result in an increase in the wind out of the east today to
around 15 kts. There is the possibility of some periodic gusts to
around 25 kts. The wind is forecast to persist through the
overnight hours tonight, possibly strengthening slightly along
the atlantic coast. Otherwise,VFR conditions are forecast through
the period.

Prev discussion issued 213 am est Tue jan 22 2019
discussion...

surface high pressure centered south of the great lakes will
continue to move eastward through mid-week as the next low pressure
system emerges over the central united states by late Tuesday early
Wednesday. The flow will eventually shift from a northerly component
to an easterly one over the next 24 hours. With this flow change,
the airmass will moderate with a warming trend expected over the
next few days. There could also be enough moisture, particularly
over the atlantic waters, to support some shower activity.

The next cold front will arrive Thursday with the potential for
showers and thunderstorms. Timing of the front is still a source of
uncertainty as the ECMWF with a bit slower than the GFS with frontal
passage. There is some consensus between guidance packages with the
front stalling to the south and east of south florida for the
weekend. Surface high pressure will build in with some cooler air
behind the front. 40s and 50s for overnight lows are expected but
the forecast evolution will have to be monitored in case colder
temperatures emerge into the picture.

Uncertainty with the pattern begins to increase as guidance is
producing some different possibilities late in the forecast period.

A mid-level trough will swing across the gulf of mexico on Sunday
which will bring some unsettled weather to the region. Some guidance
members show the development of a stronger surface feature over
florida while some other members keep the feature more aloft in
character. The forecast trend will need to be monitored as
climatologically, we are in the midst of the winter severe weather
season which can quickly come to life with disturbances moving along
a southern branch of the jetstream.

Marine...

developing easterly flow will pick up allowing advisory conditions
to develop over the atlantic waters today. Advisory conditions
over the atlantic waters will likely persist into Thursday. Small
craft advisory will be extended in time accordingly.

Beach forecast...

building easterly flow will allow for a high risk of rip currents
along the atlantic beaches to persist through a good portion of
the week. The rip current statement has been extended through at
least Wednesday evening and will likely need to be extended
through Thursday if the current forecast holds.

Fire weather...

dispersion index values will be in the good to excellent range
over the next several days. Currently, relative humidity values
appear to remain well above critical thresholds through the
weekend.

Preliminary point temps pops
West palm beach 73 64 78 68 10 10 20 30
fort lauderdale 73 67 78 71 10 10 20 30
miami 74 67 78 71 10 10 20 30
naples 76 62 79 66 10 10 10 30

Mfl watches warnings advisories
Fl... High rip current risk through Wednesday evening for flz168-172-
173.

Am... Small craft advisory until 4 pm est Thursday for amz650-651-670-
671.

Gm... None.

Discussion... 02 rag
marine... 02 rag
aviation... 13
beach forecast... 02 rag
fire weather... 02 rag


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Homestead Air Reserve Base, FL156 mi78 minENE 910.00 miPartly Cloudy68°F56°F66%1025.4 hPa

Wind History from HST (wind in knots)
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Last 24hrN3NW5N7N5N6NE7N11N13NE9N9N7N9N7NW4NW4NW8NW8NW6NE9E9NE10E13
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2 days agoSE6SE10SE11SE9
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G25

Tide / Current Tables for Nassau, New Providence Island, Bahamas
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Nassau
Click for Map
Tue -- 02:09 AM EST     -0.23 feet Low Tide
Tue -- 06:55 AM EST     Sunrise
Tue -- 08:10 AM EST     Moonset
Tue -- 08:35 AM EST     3.72 feet High Tide
Tue -- 02:52 PM EST     -0.20 feet Low Tide
Tue -- 05:46 PM EST     Sunset
Tue -- 07:39 PM EST     Moonrise
Tue -- 09:02 PM EST     3.28 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.1-0.2-0.10.51.42.33.13.63.73.32.51.50.6-0-0.20.10.71.62.433.33.12.5

Tide / Current Tables for Fresh Creek, Andros Island, Bahamas
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Fresh Creek
Click for Map
Tue -- 01:57 AM EST     -0.03 feet Low Tide
Tue -- 06:56 AM EST     Sunrise
Tue -- 08:11 AM EST     Moonset
Tue -- 08:37 AM EST     3.70 feet High Tide
Tue -- 02:46 PM EST     0.06 feet Low Tide
Tue -- 05:49 PM EST     Sunset
Tue -- 07:41 PM EST     Moonrise
Tue -- 09:03 PM EST     3.16 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.2-00.20.81.62.53.23.63.73.32.51.60.70.20.10.411.72.42.93.232.4

Weather Map and Satellite Images
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wmap_A
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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Miami-South Florida, FL (8,2,3,4)
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Ground Weather Radar Station Miami, 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.