Saturday, August24, 2019 L-36.com


Marine Weather and Tides
"Islamorada, Village of Islands ", 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 7:50PM Saturday August 24, 2019 7:16 AM EDT (11:16 UTC) Moonrise 12:04AMMoonset 1:47PM Illumination 36% Phase: Waning Crescent; Moon at 24 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
GMZ042 Hawk Channel From Ocean Reef To Craig Key Out To The Reef- 429 Am Edt Sat Aug 24 2019
Today..South to southwest winds 10 to 15 knots. Seas 2 to 3 feet. NEarshore waters a light to moderate chop. Scattered showers and isolated Thunderstorms.
Tonight..Southwest winds 10 to 15 knots, decreasing to near 10 knots. Seas around 1 to 3 feet, subsiding to 1 to 2 feet. NEarshore waters a light to moderate chop, becoming a light chop. Scattered showers and isolated Thunderstorms.
Sunday..Southwest winds 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters a light to moderate chop. Scattered showers and isolated Thunderstorms.
Sunday night..South winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. Scattered showers and isolated Thunderstorms.
Monday..South to southwest winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop. Scattered showers and isolated Thunderstorms.
Monday night and Tuesday..Variable winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop. Scattered showers and isolated Thunderstorms.
Tuesday night through Wednesday night..Mainly west winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop. Scattered showers and isolated Thunderstorms.


7 Day Forecast for Marine Location Near "Islamorada, Village of Islands ", FL
   Hourly   EDIT   Help
location: 25, -80.53     debug


Area Discussion for - Miami-South Florida, FL
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus62 kmfl 240653
afdmfl
area forecast discussion
national weather service miami fl
253 am edt Sat aug 24 2019

Discussion
The main story for the weekend is the area of low pressure sitting
over south florida. While it is tropical in nature, no significant
development is forecast while the low is over the area. Models
show the low meandering around the area for the next 24 to 36
hours, bringing increased chances for showers and thunderstorms.

However, given the tropical nature, and 500mb temperatures around
-5.5c to -6c, would expect the lightning to be fairly limited
today in count, but still possible. The GFS is showing plenty of
surface based CAPE today, with values ranging from around 900
j kg to well over 2000 j kg, varying spatially and temporally.

The GFS is showing the pwats to exceed 2 inches, and may be near
2.5 inches at times. This would bring heavy rain to the area,
which may also bring some localized flooding, mainly in the urban
areas where streets may flood due to poor drainage and in low
laying areas.

The low should begin to move off to the northeast sometime on
Sunday, and could possibly develop into a tropical system once it
leaves the area and the center returns to the marine environment.

However, both the GFS and the ECMWF are hinting at the system
perhaps being a hybrid, with a training cold front behind it. This
is seen in the surface wind fields, with a wind shift along a
boundary from the gulf waters, through the ft myers area, to the
western edge of lake okeechobee, and northeast through the vero
beach area. This boundary may act as a focus for some convection
on Sunday, especially in the lake region. By Sunday night,
the boundary become diffuse and the wind becomes more uniform out
of the southwest.

As the system departs the area, the GFS and the ECMWF diverge as
to what type of weather to expect. The ECMWF keeps showers and
storms over the area, even with a surface high building, as well
as a 500mb ridge. The GFS has similar features, but is drier for
the beginning of the week, with what appears to be a dry slot
behind the developing system. For now, kept Monday afternoon as
fairly active with showers and thunderstorms, and backed off on
pops for Tuesday, but still have a chance of convection, mainly in
the afternoon.

By the middle of the week, the models show a 500mb trough digging
into the southeast us, with the main low pressure system well to
the north, over the hudson bay. Both the GFS and ECMWF show a very
long cold front moving into north florida during the latter half
of the week, helping to bring additional instability to the area,
as well as keeping moisture in place. Both models are also hinting
that another surface low may develop over the region, along the
stalled frontal boundary. This would help to enhance convective
activity for Thursday and Friday. For now, kept pops in the chance
range.

Temperature wise, the models are coming in with seasonable temps
through the forecast period, with highs around 90 and lows in the
mid to upper 70s.

Marine
A low pressure system, sitting over south florida, will keep the
winds generally out of the south for the atlantic waters, and
northerly for the gulf today. As the system begins to exit the
area on Sunday, the wind should eventually become more uniform out
of the southwest across the area. The low will keep chances for
showers and thunderstorms over all south florida waters through
the weekend, and into the beginning of the week. Some of the
showers and storms may bring locally rough marine conditions as
well as a moderate risk for waterspouts this weekend, and possibly
Monday.

Otherwise, seas are forecast to be generally one to two feet
through the forecast period, with seas increasing to around three
feet in the offshore atlantic periodically through the week.

Aviation
Tropical disturbance is producing periods of showers moving
onshore from the atlantic with vcsh at all terminals. Shra that
do move over the terminals may bring brief MVFR ifr vis and cigs,
handled with amendments. Winds will be southerly, except kapf
where gulf breeze will develop in afternoon, around 10 knots today
with showers and storms in the vicinity throughout the day. Winds
will be come S SW overnight with showers remaining in the taf.

Preliminary point temps pops
West palm beach 87 78 91 77 70 40 60 30
fort lauderdale 86 79 90 78 60 40 60 30
miami 86 79 90 78 60 40 50 30
naples 87 79 88 78 50 30 40 30

Mfl watches warnings advisories
Fl... None.

Am... None.

Gm... None.

Discussion... 13
marine... 13
aviation... 33 kelly


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
BNKF1 - Butternut Key, FL 6 mi76 min 85°F
BOBF1 - Bob Allen, FL 8 mi76 min 86°F
WRBF1 - Whipray Basin, FL 12 mi76 min S 7 87°F
LMDF1 - Little Madeira, FL 13 mi76 min 85°F
BWSF1 - Blackwater Sound, FL 13 mi136 min 85°F
DKKF1 - Duck Key, FL 13 mi136 min 85°F
PKYF1 - Peterson Key, FL 13 mi76 min 87°F
TCVF1 - Trout Cove, FL 15 mi136 min 87°F
TBYF1 15 mi76 min 86°F
JBYF1 15 mi76 min 85°F
TRRF1 - Taylor River, FL 16 mi76 min 84°F
THRF1 16 mi136 min 84°F
LRKF1 - Little Rabbit Key, FL 16 mi136 min 86°F
LBSF1 - Little Blackwater, FL 16 mi136 min 84°F
LSNF1 - Long Sound, FL 17 mi76 min 85°F
BKYF1 18 mi76 min 85°F
GBTF1 - Garfield Bight, FL 18 mi76 min 85°F
HCEF1 - Highway Creek, FL 18 mi76 min 85°F
JKYF1 - Johnson Key, FL 20 mi76 min 87°F
LONF1 - Long Key, FL 21 mi26 min 83°F 1012.1 hPa78°F
MUKF1 - Murray Key, FL 23 mi76 min 85°F
WWEF1 27 mi136 min 85°F
LRIF1 28 mi76 min 86°F
NRRF1 31 mi76 min 84°F
CWAF1 33 mi136 min 86°F
TPEF1 - Tarpon Bay East, FL 36 mi136 min 85°F
CANF1 - Cane Patch, FL 36 mi76 min 84°F
GBIF1 - Gunboat Island, FL 37 mi76 min 85°F
VCAF1 - 8723970 - Vaca Key, FL 37 mi46 min 82°F 89°F1012.8 hPa
SREF1 39 mi76 min 87°F
SMKF1 - Sombrero Key, FL 40 mi26 min SW 11 G 12 85°F 1013.6 hPa78°F
HREF1 41 mi76 min 85°F
BDVF1 - Broad River, FL 41 mi76 min 86°F
FWYF1 - Fowey Rocks, FL 47 mi16 min SSW 11 G 12 83°F 86°F1013.2 hPa (+0.7)
WIWF1 - Willy Willy, FL 49 mi76 min 85°F

Wind History for Vaca Key, FL
(wind in knots)    EDIT      (on/off)   Help
Last
24hr
1 day
ago
2 days
ago

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
The Florida Keys - Marathon International Airport, FL33 mi23 minWSW 310.00 miOvercast82°F78°F88%1013 hPa

Link to 5 minute data for KMTH

Wind History from MTH (wind in knots)
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
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
Last 24hrN6N6--N6--N6N6N6--W6NW7NW7--E3NW3W4--------W5SW4S6SW7
1 day ago--Calm3N7----6N64NW8NE10NE7----NE4--------------N5--
2 days ago3E3----SE5SE64SW7S6--SE655E6E6E7----E6----------

Tide / Current Tables for Tavernier Creek, Hwy. 1 bridge, Hawk Channel, Florida
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Tavernier Creek
Click for Map
Sat -- 01:04 AM EDT     Moonrise
Sat -- 03:28 AM EDT     1.28 feet High Tide
Sat -- 06:59 AM EDT     Sunrise
Sat -- 10:03 AM EDT     0.20 feet Low Tide
Sat -- 02:46 PM EDT     Moonset
Sat -- 04:27 PM EDT     1.33 feet High Tide
Sat -- 07:48 PM EDT     Sunset
Sat -- 10:40 PM EDT     0.42 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
0.70.91.11.31.31.10.90.70.40.30.20.30.40.711.21.31.31.210.80.60.40.4

Tide / Current Tables for Long Key, east of drawbridge, Florida Current
   EDIT      (on/off)   Help   One Week of Data
Long Key
Click for Map
Sat -- 12:48 AM EDT     0.00 knots Slack
Sat -- 01:05 AM EDT     Moonrise
Sat -- 03:15 AM EDT     0.57 knots Max Flood
Sat -- 06:19 AM EDT     -0.00 knots Slack
Sat -- 07:00 AM EDT     Sunrise
Sat -- 09:49 AM EDT     -1.10 knots Max Ebb
Sat -- 01:23 PM EDT     0.00 knots Slack
Sat -- 02:47 PM EDT     Moonset
Sat -- 04:27 PM EDT     0.93 knots Max Flood
Sat -- 07:49 PM EDT     Sunset
Sat -- 08:16 PM EDT     -0.00 knots Slack
Sat -- 10:49 PM EDT     -0.73 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
-0.30.10.40.60.50.30.1-0.2-0.7-1-1.1-0.9-0.6-0.20.30.70.90.90.80.50.1-0.3-0.7-0.7

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

Gulf Stream Current


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.