Sunday, January21, 2018 L-36.com


Marine Weather and Tides
Gulf Stream, 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 7:07AMSunset 5:56PM Sunday January 21, 2018 1:25 PM EST (18:25 UTC) Moonrise 10:04AMMoonset 10:04PM Illumination 25% 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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AMZ650 Coastal Waters From Jupiter Inlet To Deerfield Beach Fl Out 20 Nm- Waters From Jupiter Inlet To Deerfield Beach Fl From 20 To 60 Nm- 1031 Am Est Sun Jan 21 2018
.small craft should exercise caution for winds...
Rest of today..East winds around 15 knots with gusts to around 25 knots. Seas 3 to 5 feet with occasional seas to 5 feet. Period 4 seconds. Intracoastal waters a moderate chop. A slight chance of light showers in the morning.
Tonight..East winds around 15 knots with gusts to around 25 knots. Seas 2 to 4 feet with occasional seas to 5 feet. Period 5 seconds. Intracoastal waters a moderate chop.
Monday..East winds 10 to 15 knots. Seas 2 to 3 feet. Period 5 seconds. Intracoastal waters a moderate chop.
Monday night..Southeast winds 5 to 10 knots along the coast to east southeast 10 to 15 knots in the gulf stream. Seas 2 to 3 feet. Period 4 seconds. Intracoastal waters a moderate chop.
Tuesday..Southeast winds 5 to 10 knots. Seas around 2 feet. Intracoastal waters a light chop. A chance of showers.
Tuesday night..Northeast winds 5 to 10 knots. Seas around 2 feet. Intracoastal waters a light chop. A chance of showers.
Wednesday..Northeast winds 10 to 15 knots. Seas 2 to 4 feet with occasional seas to 5 feet. Intracoastal waters a moderate chop. A slight chance of showers.
Wednesday night..North northeast winds 10 to 15 knots along the coast to northeast 15 to 20 knots in the gulf stream. Seas 2 to 4 feet with occasional seas to 5 feet along the coast and 3 to 5 feet with occasional to 6 feet in the gulf stream. Intracoastal waters choppy in exposed areas. A slight chance of showers.
Thursday..Northeast winds 15 to 20 knots along the coast to northeast 15 to 25 knots in the gulf stream. Seas 4 to 6 feet with occasional seas to 8 feet. Intracoastal waters rough in exposed areas. A slight chance of showers.
AMZ600 Synopsis For Jupiter Inlet To Ocean Reef Fl Out To 60 Nm And For East Cape Sable To Bonita Beach Fl Out To 60 Nm- 1031 Am Est Sun Jan 21 2018
Synopsis.. High pressure, to the north, is forecast to keep the easterly wind in place through the beginning of the week. Seas are forecast to slowly subside to 1 to 2 feet in the atlantic and 1 foot or less in the gulf by Monday afternoon. A cold front will push into the area Tuesday afternoon into Tuesday evening. This will bring a chance for showers to the region beginning Tuesday morning. Showers will continue to be possible through the remainder of the week, as the front stalls just south of the area. Strong high pressure will build in behind the front, bringing a fresh to strong breeze to the region for the latter half of the week.
Gulf stream hazards..None. The approximate location of the west wall of the gulf stream as of jan 19, 2018 at 1200 utc... 6 nautical miles east southeast of fowey rocks. 12 nautical miles east northeast of port everglades. 5 nautical miles east of lake worth. 11 nautical miles east of jupiter inlet. This data courtesy of the naval oceanographic office.

7 Day Forecast for Marine Location Near Gulf Stream, FL
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location: 26.46, -79.95     debug


Area Discussion for - Miami-South Florida, FL
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Fxus62 kmfl 211731 aac
afdmfl
area forecast discussion... Updated
national weather service miami fl
1231 pm est Sun jan 21 2018

Aviation
High pressure over the southeastern united states will keep the
weather dry over all of south florida TAF sites along with
easterly wind flow. The wind speeds will be 10 to 15 knots this
afternoon before decreasing to around 10 knots tonight. The
ceiling and vis will also remain in theVFR conditions at all of
the TAF sites tonight.

Aviation... 54 bnb

Prev discussion issued 855 am est Sun jan 21 2018

High risk of rip currents for the east coast beaches today...

update...

a 500 mb short wave over the southeastern united states will
continue to move east into the western atlantic waters this
afternoon. This will allow for drier air over the gulf of mexico
to move east and into south florida by this afternoon, and end the
light showers over south florida. The skies will also slowly break
up this morning and become partly cloudy by this afternoon.

The latest morning mia sounding shows easterly winds around 20
knots just above the surface, and ship reports over the atlantic
waters have been reporting 14 to 17 kts this morning. The pressure
gradient should continue to tighten through the afternoon into
the night hours tonight, as the high over the southeastern united
states strengthens and moves slowly east into the western
atlantic waters. Therefore, the winds will be increase a little
bit into the scec conditions for the atlantic and biscayne bay
waters for rest of today into tonight. This will also increase the
risk of rip currents to high conditions for the east coast
beaches today into tonight.

Rest of the forecast looks good at this time an no other changes
are planned at this time.

Update... 54 bnb
prev discussion... Issued 556 am est Sun jan 21 2018
aviation...

east southeast winds will continue around 8 to 10 kt through mid
morning, then increase to around 12 kt aft 21 1500z. Winds will
slowly ease aft around 21 2300z this evening. There may be an
isolated shower during the period, but not widespread of confident
enough to include in the latest TAF package. Otherwise expect sct
low clouds near 3000 ft msl, along with high clouds AOA 20000 ft
msl.

Prev discussion... Issued 352 am est Sun jan 21 2018
discussion...

cloudy, with a few light showers across the area this morning.

These are associated with a 500 mb short wave traversing the
region this morning. Models have had a hard time handling this
precipitation, as it is generally light, although the ECMWF does
indicate a few light showers, which come to an end later this
morning. Little to no measurable accumulation will occur with the
majority of any showers that do move across the area.

At the surface, there is a strong area of high pressure to the
north, bringing an easterly surface wind to the region. This
will continue through the day tomorrow as well, allowing for a
warming trend to continue today and tomorrow.

By Tuesday, a strong 500 mb low, and an associated surface low,
will move into the great lakes region. Models are in good
agreement with this feature, and show a cold front moving into the
area by Tuesday afternoon. This will bring some instability into
the region, allowing for the possibility of showers. However, the
gfs and the ECMWF disagree on how much shower activity will
occur. The GFS shows a dry frontal passage Tuesday night, into
Wednesday morning. It stalls the front just to our south, perhaps
just south of the keys.

The ECMWF has similar timing, and location for the front to stall,
but indicates better chances for showers Tuesday through Thursday.

Given this uncertainty, kept pops on the lower side, favoring the
gfs at this time. The best chances for showers Tuesday afternoon
and evening.

As the front sits just to the south of the area, high pressure
will begin to build to the north, along with a progressive 500 mb
ridge. This will significantly tighten the surface pressure
gradient across the region, increasing the wind out of the east.

The atlantic waters may see the wind increase to 25 to 30 kts.

Some of this may be experienced along the atlantic coast. Inland,
and for the gulf waters, the wind will not be quite as strong, but
still breezy. The offshore gulf waters may see winds of 20 to 25
kts. This is forecast to persist into next weekend.

The next system to impact south florida will begin to take shape
at the end of the week, into Saturday, as a strong 500mb trough
moves across the western united states, and a surface low takes
shape over the high plains by Saturday morning. This low will move
across the southern mississippi river valley Saturday night,
helping to push the high out of the area, and bring the next
chance of precipitation to the region for late Saturday night,
into Sunday.

Marine...

high pressure to the north to northeast is forecast to maintain
the easterly wind for the next couple of days. This will allow
for seas to slowly subside in the atlantic waters to around 1 to 2
feet and 1 foot or less in the gulf waters. A cold front is
progged to bring the possibility of showers to the area Tuesday,
as it moves through the region, and stalls just to the south. This
will keep a mention of showers in the forecast for the remainder
of the week.

High pressure will build to the north of the frontal boundary,
increasing the pressure gradient significantly enough to bring a
fresh to strong breeze to the atlantic and offshore gulf waters
Thursday. This is forecast to persist into the weekend. This wind
would cause seas to build in the atlantic waters to 7 feet by
Friday morning and 8 to 9 feet by Saturday morning. Marine
conditions would be hazardous for small craft.

The east wind today will also bring at least a moderate risk of
rip currents to the atlantic beaches. With little swell, and low
tide not occurring during the middle of the day, have favored the
moderate, although it may be borderline high risk this afternoon.

Tomorrow may be similar. There looks to be a break in the risk of
rip currents for Tuesday through early Wednesday afternoon. As the
wind increases late Wednesday, so will the rip current risk, with
a high risk having a high probability of occurrence for the
latter half of the week.

Preliminary point temps pops
West palm beach 74 67 78 67 20 10 10 10
fort lauderdale 75 66 77 67 20 10 10 10
miami 77 69 79 70 20 10 10 10
naples 78 60 80 64 10 0 10 20

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

Am... None.

Gm... None.

Update... 54 bnb
discussion... 13
marine... 13
aviation... 54 bnb


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LKWF1 - 8722670 - Lake Worth, FL 11 mi38 min ENE 15 G 17 72°F 72°F1022.8 hPa65°F
PVGF1 - Port Everglades Channel, FL 27 mi26 min E 4.1 G 7 76°F 1021 hPa (-1.4)64°F
VAKF1 - 8723214 - Virginia Key, FL 52 mi38 min ENE 7 G 8.9 73°F 69°F1020.7 hPa

Wind History for Lake Worth Pier, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boca Raton, Boca Raton Airport, FL10 mi39 minE 710.00 miMostly Cloudy77°F66°F69%1021.7 hPa
Pompano Beach, Pompano Beach Airpark, FL17 mi33 minESE 910.00 miMostly Cloudy78°F66°F69%1021.2 hPa
West Palm Beach - Palm Beach International Airport, FL18 mi33 minENE 1210.00 miMostly Cloudy73°F64°F76%1021.8 hPa
Fort Lauderdale, Fort Lauderdale Executive Airport, FL21 mi33 minESE 1010.00 miMostly Cloudy78°F66°F67%1021.2 hPa

Wind History from BCT (wind in knots)
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Last 24hrNE9NE9NE9E7E7E7E7NE7NE7E7--------------E8E8E8E8E7E9E7
1 day agoE10E10E10E10E10E10NE6E4NE4N5--------------CalmE7SE6
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2 days agoN10
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N10--N10N8N10NW9NW7N6----------------N6N9N9N7NE6NE8

Tide / Current Tables for Delray Beach, ICWW, Florida
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Delray Beach
Click for Map
Sun -- 12:19 AM EST     2.21 feet High Tide
Sun -- 06:40 AM EST     -0.13 feet Low Tide
Sun -- 07:08 AM EST     Sunrise
Sun -- 10:04 AM EST     Moonrise
Sun -- 12:43 PM EST     2.32 feet High Tide
Sun -- 05:54 PM EST     Sunset
Sun -- 07:08 PM EST     -0.04 feet Low Tide
Sun -- 10:05 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.22.21.81.30.70.2-0.1-0.10.20.71.31.92.22.32.11.61.10.50.1-00.10.51.11.6

Tide / Current Tables for South Delray Beach, ICWW, Florida
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South Delray Beach
Click for Map
Sun -- 12:08 AM EST     2.28 feet High Tide
Sun -- 06:36 AM EST     -0.05 feet Low Tide
Sun -- 07:08 AM EST     Sunrise
Sun -- 10:04 AM EST     Moonrise
Sun -- 12:32 PM EST     2.39 feet High Tide
Sun -- 05:54 PM EST     Sunset
Sun -- 07:04 PM EST     0.04 feet Low Tide
Sun -- 10:05 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.32.21.81.30.80.3-0-00.30.81.422.32.42.11.71.10.60.200.20.61.21.7

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 Miami-South Florida, FL (13,3,4,5)
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Ground Weather Radar Station Miami, 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.