Saturday, January18, 2020
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L-36.com


Marine Weather and Tides
Islandia, FL

Version 3.4
NOTICE
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 6:54AMSunset 5:44PM Saturday January 18, 2020 9:18 AM EST (14:18 UTC) Moonrise 1:04AMMoonset 12:46PM Illumination 41% Phase: Third Quarter Moon; Moon at 23 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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AMZ117 Bahamas Including Cay Sal Bank- 304 Am Est Sat Jan 18 2020
Today..E winds 20 to 25 kt. Seas 9 to 13 ft in N to ne swell.
Tonight..E winds 15 to 20 kt. Seas 9 to 13 ft in N to ne swell.
Sun..E to se winds 15 to 20 kt. Seas 7 to 11 ft in ne swell.
Sun night..SE winds 10 to 15 kt. Seas 6 to 9 ft in ne swell.
Mon..SE winds 10 kt. Seas 3 to 5 ft.
Mon night..N to ne winds 10 to 15 kt. Seas 2 to 4 ft.
Tue..N winds 10 to 15 kt. Seas 2 to 4 ft.
Tue night..NW to N winds 15 to 20 kt. Seas 2 to 4 ft.
Wed..N winds 10 to 15 kt. Seas 3 to 5 ft.
Wed night..N to ne winds 15 to 20 kt. Seas 4 to 6 ft.


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 181049 AFDMFL

Area Forecast Discussion National Weather Service Miami FL 549 AM EST Sat Jan 18 2020

Aviation. Generally VFR but gusty easterly flow will persist with a tendency more north of east this morning that will become south of east to southeasterly by tonight. With the front being south of the region, rain shower chances should be minimal on Saturday.

Prev Discussion. /issued 320 AM EST Sat Jan 18 2020/

.Hazardous Marine and Beach Conditions This Weekend. .Early week cold front before chilly mid-week mornings.

Short Term (Today through Sunday) . Easterly flow from surface high pressure centered over the Mid- Atlantic states will remain gusty today. Moisture is fairly limited and the threat of even sprinkles should diminish after sunrise this morning. Aloft, a ridge of high pressure sitting over the Greater Antilles will help keep a lid on any potential convective activity. Temperatures along the Atlantic coast will feel a bit cooler thanks to the gusty easterly flow while the Gulf coast could again push into the lower 80s. Tonight should be comfortable with temperatures a few degrees above climatological norms ranging from mid to upper 60s along the Atlantic to upper 50s over inland portions of Southwest Florida.

The pattern begins to shift on Sunday as the surface high pressure slides eastward into the Atlantic giving way to the approaching Great Lakes low pressure system. A cold front associated with this system will stretch into the Gulf of Mexico and will move southeastward entering northern Florida late Saturday and knocking on Central Florida's door early on Sunday. The wind will go from easterly to southeasterly today and become more southwesterly by Sunday afternoon. Accordingly, additional moisture and a warming trend will be the story on Sunday. Rain chances will still be minimal as the front will still be distant enough on Sunday where the influence of the ridge aloft will remain.

Sunday night is a different story as a pre-frontal trough could bring some rain chances to the area ahead of the main front. Thunderstorm chances are non-zero but lack of much mid to upper level support for convection with just the trough moving through increase confidence in leaving mention of thunderstorms out of the forecast for now.

Long Term (Monday through Friday) . A pre-frontal trough should be south of South Florida on Monday leading to a northerly wind flow. However, there could still be a few showers over South Florida on Monday ahead of a strong cold front that should move through the region Monday night, as some low level moisture remain in place over South Florida.

The strong cold front should move through South Florida Monday night bringing in dry air along with much colder conditions for Tuesday into Wednesday. Highs on Tuesday and Wednesday will struggle to get into the 60s. Lows Tuesday morning will be 40s over the interior and west coast metro areas with 50s over the east coast metro areas. However, the wind chill readings on Tuesday morning will be around 40 west of Lake Okeechobee due to the northerly winds around 5 mph. Lows on Wednesday morning will be even colder with 40s over the eastern areas of South Florida to the mid to upper 30s over the western areas except around 40 west coast metro areas.

The air mass over South Florida will then warm up to near normal conditions late this week, as the high will be moving into the Atlantic waters from the Southeastern United States. This will allow for the winds swing to an easterly direction late this week allowing for the highs to get back into the 70s with lows getting back into the 50s, except in the lower to mid 60s over the east coast metro areas which is a little bit above the normal temperatures for this time of year.

Marine . Two rounds of hazardous conditions with the first this weekend as gusty easterly winds due to the gradient between building high pressure over the Mid-Atlantic and the backdoor cold front to our south and swell. Conditions will briefly improve ahead of the next front on Monday with deteriorating conditions forecast behind the front heading into mid-week. Small Craft Advisories may be necessary, particularly for the Atlantic waters, through the end of the week.

Beach Forecast . Gusty easterly flow and swell in the Atlantic will create a high risk of rip currents along the Atlantic beaches today which will likely persist into Sunday. Accordingly, the Rip Current Statement has been extended through 00z Monday for the Atlantic beaches of South Florida. Rip Current potential remains highest along the Palm Beaches through a good portion of the week, though the rest of the Atlantic beaches remain elevated as well.

Preliminary Point Temps/PoPs. West Palm Beach 76 65 81 64 / 10 0 10 20 Fort Lauderdale 76 68 80 67 / 10 10 10 20 Miami 77 66 81 66 / 0 10 10 20 Naples 81 63 80 61 / 0 0 10 20

MFL WATCHES/WARNINGS/ADVISORIES. FL . High Rip Current Risk through Sunday evening for FLZ168-172-173.

High Surf Advisory until 7 AM EST Sunday for FLZ168.

AM . Small Craft Advisory until 10 PM EST this evening for AMZ651-671.

Small Craft Advisory until 10 PM EST Sunday for AMZ650-670.

Small Craft Advisory until 4 PM EST this afternoon for AMZ630.

GM . Small Craft Advisory until 1 PM EST this afternoon for GMZ656- 657-676.

Aviation . 02/RAG


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Homestead Air Reserve Base, FL156 mi83 minE 16 G 2210.00 miA Few Clouds71°F59°F68%1025 hPa

Link to 5 minute data for KHST

Wind History from HST (wind in knots)
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Last 24hrN4NE5NE7NE7NE12
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1 day agoE7NE8NE6NE8NE8E7E7E7NE4NE4NE4NE5NE5CalmNE5NE3NE4E4CalmCalmCalmCalmNW3NW3
2 days agoE9E11
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E10E12E7E9E8E6NE3NE4NE5NE5E4E3CalmCalmNW3NW3CalmNW3NW3CalmNW3Calm

Tide / Current Tables for Nassau, New Providence Island, Bahamas
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Nassau
Click for Map
Sat -- 01:03 AM EST     Moonrise
Sat -- 01:57 AM EST     3.29 feet High Tide
Sat -- 06:55 AM EST     Sunrise
Sat -- 08:15 AM EST     0.65 feet Low Tide
Sat -- 12:45 PM EST     Moonset
Sat -- 02:20 PM EST     2.82 feet High Tide
Sat -- 05:43 PM EST     Sunset
Sat -- 08:25 PM EST     0.49 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.73.13.33.12.621.40.90.70.71.11.62.12.62.82.82.41.91.30.80.50.50.91.4

Tide / Current Tables for Nassau, New Providence Island, Bahamas (2)
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Nassau
Click for Map
Sat -- 01:03 AM EST     Moonrise
Sat -- 01:50 AM EST     3.25 feet High Tide
Sat -- 06:55 AM EST     Sunrise
Sat -- 08:09 AM EST     0.64 feet Low Tide
Sat -- 12:45 PM EST     Moonset
Sat -- 02:11 PM EST     2.85 feet High Tide
Sat -- 05:43 PM EST     Sunset
Sat -- 08:16 PM EST     0.42 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.73.13.232.61.91.30.80.60.71.11.72.22.62.82.72.41.81.20.70.40.50.91.5

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Miami-South Florida, FL (9,2,3,4)
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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 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.