Sunday, August25, 2019 L-36.com


Marine Weather and Tides
North Key Largo, FL

Version 3.4
NOTICE
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 6:58AMSunset 7:49PM Sunday August 25, 2019 7:46 AM EDT (11:46 UTC) Moonrise 12:50AMMoonset 2:46PM Illumination 26% Phase: Waning Crescent; Moon at 25 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
    EDIT      (on/off)   Help
AMZ630 Biscayne Bay- 409 Am Edt Sun Aug 25 2019
Today..South southwest winds 5 to 10 knots. Bay waters a light chop. Slight chance of Thunderstorms in the morning. Chance of showers. Chance of Thunderstorms in the afternoon.
Tonight..Southwest winds 5 to 10 knots. Bay waters a light chop. Slight chance of showers and Thunderstorms in the evening.
Monday..South southwest winds 5 to 10 knots. Bay waters a light chop. Chance of showers and Thunderstorms.
Monday night..West southwest winds 5 to 10 knots. Bay waters a light chop.
Tuesday..West southwest winds 5 to 10 knots. Bay waters a light chop. Slight chance of Thunderstorms in the morning. Chance of showers. Chance of Thunderstorms in the afternoon.
Tuesday night..West northwest winds around 5 knots. Bay waters smooth. Slight chance of showers in the evening.
Wednesday..West northwest winds around 5 knots. Bay waters smooth. Chance of showers and slight chance of Thunderstorms.
Wednesday night..West northwest winds around 5 knots. Bay waters smooth. Chance of showers and Thunderstorms in the evening, then slight chance of showers and Thunderstorms after midnight.
Thursday..West winds around 5 knots becoming south in the afternoon. Bay waters smooth. Chance of showers in the morning, then showers likely and chance of Thunderstorms in the afternoon.
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- 409 Am Edt Sun Aug 25 2019
Synopsis.. Showers and Thunderstorms will continue to be possible through the week. A low pressure system, which has been meandering around the area for the last couple of days, will begin to slowly exit to the northeast today. By mid week, it should be off the carolina coast and may send a weak swell into the coastal waters off palm beach county, which may cause seas to build to around 4 feet for the middle of the week. Otherwise, seas are forecast to run 1 to 3 feet.
Gulf stream hazards..None. The approximate location of the west wall of the gulf stream as of aug 24, 2019 at 1200 utc... 6 nautical miles east southeast of fowey rocks. 13 nautical miles east southeast of port everglades. 12 nautical miles east southeast of lake worth. 11 nautical miles east northeast of jupiter inlet. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near North Key Largo CDP, FL
   Hourly   EDIT   Help
location: 25.31, -80.27     debug


Area Discussion for - Miami-South Florida, FL
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus62 kmfl 251140
afdmfl
area forecast discussion
national weather service miami fl
740 am edt Sun aug 25 2019

Aviation
Lingering influence from yesterday's weak low pressure system
keeping prevailing SW flow, though very light. East coast
seabreeze uncertain, but expect at least a S to ssw backing 16z-
18z. Ongoing shra likely to expand after 15z, though kapf may see
vcnty activity to start cycle. Shra tsra shift towards east coast
late afternoon, with activity winding down towards sunset. Light
and variable winds overnight.

Prev discussion issued 405 am edt Sun aug 25 2019
discussion...

a weak low pressure system, which has been wandering around the
region for the last couple of days, should begin it journey off to
the northeast, along with a 500mb low. As the system exits the
area, models are indicating some weak ridging at 500mb, and a
fairly neutral sfc pattern over south florida. There is still a
bermuda high sitting well to the east north east, which will help
to shift the surface wind to the southwest behind the system.

However, pwats should continue to run over 2 inches for a couple
more days. This with daytime heating should allow for mainly
afternoon showers and thunderstorms to affect the area. The models
are not showing much in the way of a sea breeze today, at least
not for the atlantic coast. With the SW flow, the eastern half of
the cwa, especially around the lake and in broward and palm beach
counties, look to have the best chances for convection today. With
the are still fairly saturated, the flooding of roadways and low
laying areas may still be subject to flooding. The GFS is
indicating that the 500mb temperatures should be around -6c and
cape should be between 1500 and 2000 j kg. Again, conducive for
diurnal convection today. Monday looks to be very similar to
Sunday, with perhaps a somewhat stronger SW flow.

Tuesday, the pattern begins to change a little, with some drier
air trying to work is way in and a weak high trying to build over
the keys. However, the GFS is showing the drier air may have some
trouble totally covering the area. Even so, pwats may drop to
below 2 inches for much of the area for Tuesday and Wednesday.

Cape values also drop to around 1000 j kg over much of the area,
with the exception of the lake region, which is still around 2000
j kg. Wednesday shows a more consistent CAPE value of around 1600
j kg in the afternoon. Tuesday should see a downward trend of
coverage, which GOES into Wednesday, with only a chance of showers
and thunderstorms across the area. The GFS and ECMWF show the low
is slowly moving away from the area, still sitting off the
carolina coast on Wednesday. There is a possibility that the area
could see a dry slot behind this system. Both models are hinting
at this solution, but with slightly different timing, and
coverage. So confidence is fairly low at this time that this will
occur.

By the latter half of the week, a strong 500mb trough will be
traversing southern canada and the great lakes region. This trough
should pick up the low and quickly move it away from the carolina
coast, and bring a cold front as far south as north florida, maybe
even north central florida by Thursday morning. This, of course
would keep south florida in the warm sector and keep convection in
the forecast for the remainder of the week. This will increase
pops for Thursday.

However, the bermuda high should begin to strengthen and
retrograde back towards the area, pushing the front back to the
north on Friday, and allowing a south southeasterly flow to set
up. This would help to lower the pops a tick along the east coast,
but would increase the for the western lake region. Saturday is
still very questionable. The wind pattern does look to turn more
easterly, which would mean lower pops for the atlantic coast, and
an increase for the gulf coast. However, there is a large amount
of uncertainty with the weather for the weekend as a tropical
system may approach the area. The models are currently showing
that the moisture from dorian may move into the area. It is very
uncertain if this will be in the form of an organized system, or a
simple wave of tropical moisture. It is also possible that the
system misses the area entirely. For this reason, have kept pops
right around 50 percent for the weekend. As the system gets closer
and the models get a better handle on its life cycle, the
forecast certainty should increase.

Marine...

showers and thunderstorms continue to be in the forecast through
the week. The wind is forecast to become southwesterly today. By
Tuesday, the wind should shift more westerly for the middle of the
week. Seas are forecast to run 1 to 3 feet, with some possible
building in the gulf stream off palm beach county mid week due to
a weak swell. Even then, the models are only calling for 4 foot
seas for the middle of the week, before dropping back to the 1 to
3 foot range.

Preliminary point temps pops
West palm beach 90 77 91 77 70 40 70 30
fort lauderdale 90 78 90 78 70 30 60 20
miami 91 78 92 78 50 30 50 10
naples 89 79 88 78 40 30 40 20

Mfl watches warnings advisories
Fl... None.

Am... None.

Gm... None.

Aviation... 88 alm


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
THRF1 9 mi107 min 87°F
HCEF1 - Highway Creek, FL 10 mi47 min 87°F
LSNF1 - Long Sound, FL 11 mi47 min 85°F
LBSF1 - Little Blackwater, FL 11 mi107 min 85°F
BWSF1 - Blackwater Sound, FL 13 mi107 min 85°F
TCVF1 - Trout Cove, FL 15 mi107 min 87°F
DKKF1 - Duck Key, FL 15 mi107 min 85°F
JBYF1 16 mi47 min 86°F
BNKF1 - Butternut Key, FL 20 mi47 min 86°F
TRRF1 - Taylor River, FL 21 mi47 min 84°F
FWYF1 - Fowey Rocks, FL 21 mi47 min SSW 11 G 11 83°F 84°F1013.4 hPa (+0.4)
LMDF1 - Little Madeira, FL 21 mi47 min 85°F
TBYF1 26 mi47 min 85°F
BOBF1 - Bob Allen, FL 29 mi47 min 85°F
GBTF1 - Garfield Bight, FL 30 mi47 min 83°F
VAKF1 - 8723214 - Virginia Key, FL 30 mi53 min S 8.9 G 11 82°F 87°F1012.6 hPa
WRBF1 - Whipray Basin, FL 30 mi47 min S 8 85°F
BKYF1 33 mi47 min 84°F
LRIF1 33 mi47 min 86°F
NRRF1 34 mi47 min 85°F
WWEF1 36 mi107 min 86°F
CANF1 - Cane Patch, FL 36 mi47 min 85°F
LRKF1 - Little Rabbit Key, FL 37 mi107 min 85°F
PKYF1 - Peterson Key, FL 37 mi47 min 87°F
TPEF1 - Tarpon Bay East, FL 37 mi107 min 86°F
MUKF1 - Murray Key, FL 38 mi47 min 85°F
JKYF1 - Johnson Key, FL 38 mi47 min 85°F
CWAF1 39 mi107 min 87°F
BDVF1 - Broad River, FL 40 mi47 min 87°F
GBIF1 - Gunboat Island, FL 41 mi47 min 86°F
HREF1 43 mi47 min 85°F
SREF1 44 mi47 min 88°F
WIWF1 - Willy Willy, FL 45 mi47 min 86°F
LONF1 - Long Key, FL 45 mi17 min 85°F 1012.6 hPa79°F

Wind History for Virginia Key, FL
(wind in knots)    EDIT      (on/off)   Help
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
Last
24hr
S12
S10
S10
SW20
W4
SE4
G8
S11
S6
G9
S8
S9
S9
S8
S8
S11
S10
S9
SW9
SW7
S8
SW6
SW10
S9
S10
S9
1 day
ago
--
N1
G4
N2
N3
NE7
NE8
G11
N4
N2
G5
NE5
G8
NE6
NE3
--
NW1
NE1
SE3
SE2
SE13
G17
E4
E6
G9
S10
S10
S7
G10
S8
G11
S10
2 days
ago
W1
G5
NW1
G4
NE6
NE7
NE8
NE8
NE9
NE8
G11
NE8
G11
NE8
G12
NE10
G14
NE11
G18
NE9
G12
NE8
G16
NE7
G11
NE7
G11
N4
G11
NE10
G13
NE10
G14
NE5
G9
N5
NE8
G11
NE4
NE5

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Homestead Air Reserve Base, FL13 mi51 minSSW 310.00 miMostly Cloudy77°F74°F92%1013.2 hPa

Link to 5 minute data for KHST

Wind History from HST (wind in knots)
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
Last 24hrCalmS6SE7S8SW5S4SE3E8E5E8S3S4S4S4S3S4S3CalmSE3CalmCalmS3S5S3
1 day agoN5NW5N6N5N8E3NE5CalmN3NE4E4SE3SW4CalmCalmCalmCalmCalmCalmCalmSE6S5CalmCalm
2 days agoCalmNW5N4NE9NE4E8NE5E10NE8NE9NE11NE9N9N7N7N6N5N3N6N4NW3NW5NW4N4

Tide / Current Tables for Ocean Reef Harbor, Key Largo, Florida
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Ocean Reef Harbor
Click for Map
Sun -- 01:50 AM EDT     Moonrise
Sun -- 03:56 AM EDT     2.28 feet High Tide
Sun -- 06:58 AM EDT     Sunrise
Sun -- 10:28 AM EDT     0.28 feet Low Tide
Sun -- 03:45 PM EDT     Moonset
Sun -- 04:55 PM EDT     2.43 feet High Tide
Sun -- 07:47 PM EDT     Sunset
Sun -- 11:07 PM EDT     0.66 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
1.11.51.92.22.32.21.81.40.90.50.30.30.611.522.32.42.321.51.10.80.7

Tide / Current Tables for Caesar Creek, Biscayne Bay, Florida Current
   EDIT      (on/off)   Help   One Week of Data
Caesar Creek
Click for Map
Sun -- 12:56 AM EDT     0.00 knots Slack
Sun -- 01:49 AM EDT     Moonrise
Sun -- 02:55 AM EDT     0.50 knots Max Flood
Sun -- 05:27 AM EDT     -0.00 knots Slack
Sun -- 06:58 AM EDT     Sunrise
Sun -- 09:20 AM EDT     -1.80 knots Max Ebb
Sun -- 01:14 PM EDT     0.00 knots Slack
Sun -- 03:45 PM EDT     Moonset
Sun -- 04:18 PM EDT     1.17 knots Max Flood
Sun -- 07:26 PM EDT     -0.00 knots Slack
Sun -- 07:47 PM EDT     Sunset
Sun -- 10:23 PM EDT     -1.34 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
-0.500.40.50.40.2-0.3-0.9-1.5-1.8-1.7-1.4-0.9-0.20.511.21.10.90.3-0.4-1-1.3-1.3

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
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 (7,2,3,4)
      (on/off)   Help

Ground Weather Radar Station Miami, FL
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.