Wednesday, November14, 2018 L-36.com


Marine Weather and Tides
Marathon, 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 6:41AMSunset 5:41PM Wednesday November 14, 2018 10:54 AM EST (15:54 UTC) Moonrise 12:26PMMoonset 11:39PM Illumination 40% Phase: Waxing Crescent; Moon at 6 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
GMZ043 Hawk Channel From Ocean Reef To Craig Key Out To The Reef- Hawk Channel From Craig Key To West End Of Seven Mile Bridge Out To The Reef- 945 Am Est Wed Nov 14 2018
This afternoon..East to southeast winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. Isolated showers.
Tonight..East to southeast winds 5 to 10 knots. Seas 1 to 2 feet. NEarshore waters smooth to a light chop. Scattered showers and isolated Thunderstorms.
Thursday..Variable winds 5 to 10 knots, becoming northwest to north and increasing to 15 to 20 knots in the afternoon. Seas around 1 foot, building to 1 to 3 feet. NEarshore waters smooth to a light chop, becoming choppy. Scattered showers.
Thursday night..Northwest to north winds 20 to 25 knots. Seas 3 to 4 feet. NEarshore waters very rough. Isolated showers.
Friday..North winds 20 to 25 knots, decreasing to near 15 knots late in the afternoon. Seas 3 to 4 feet, subsiding to 1 to 3 feet. NEarshore waters very rough, becoming a moderate chop.
Friday night..North winds near 15 knots, increasing to 15 to 20 knots. Seas building to 2 to 3 feet. NEarshore waters a moderate chop, becoming choppy. Isolated showers.
Saturday..Northeast winds 15 to 20 knots, decreasing to 10 to 15 knots. Seas subsiding to 1 to 3 feet. NEarshore waters choppy, becoming a light to moderate chop. Isolated showers.
Saturday night..Northeast to east winds near 15 knots. Seas 2 to 3 feet. NEarshore waters a moderate chop. Isolated showers.
Sunday..Northeast to east winds near 15 knots. Seas 2 to 3 feet. NEarshore waters a moderate chop. Scattered showers.
Sunday night..Northeast winds near 15 knots. Seas 2 to 3 feet. NEarshore waters a moderate chop. Scattered showers.


7 Day Forecast for Marine Location Near Marathon, FL
   Hourly   EDIT   Help
location: 24.73, -81.03     debug


Area Discussion for - Key West, FL
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus62 kkey 141459
afdkey
area forecast discussion
national weather service key west fl
959 am est Wed nov 14 2018

Discussion In the middle and upper levels( 700-200 mb), latest
available goes-r satellite imagery overlaid with model streamline
analysis as of 1000 am indicates an exceptionally deep full
latitudinal longwave pattern for the middle of november, with an
embedded powerful middle level cyclone at 500 mb developing over
the southern plains. This system is trailing an attendant
northeast to southwest oriented trough axis, which extends down
to west of the central mexican pacific coast. Conversely and
downstream of that, ridging is evident with the axis of the ridge
positioned from the middle ohio valley south southeast to cuba,
however, the aforementioned middle low is beginning to erode the
northern extent of the ridging.

At the surface and in the lower to mid levels(surface to 700 mb),
latest available goes-r satellite imagery overlaid with marine
and land surface observations and surface analysis, as of 900 am,
detail a powerful attendant cold front extending south southwest
wards to across central florida thence to the western yucatan
peninsula from a deepening low pressure system near prince edward
island. As such the 12z sounding at key west illustrated a
moistening and veering southeast lower to mid level profile,
surface to 750 mb, then becoming southwest above that up to 200
mb.

Currently As of 1000 am, skies are mostly sunny across the
islands and surrounding waters across the islands and surrounding
waters. With only a few showers and a thunderstorm or two located
across the northwestern offshore gulf waters. Temperatures across
the islands are already in the lower to mid 80s, on there way to
record upper 80s, with dewpoints in the ridiculous mid to upper
70s. C-man stations along the reef are east to southeast near 10
knots.

Short term The cold front will begin to move thru the afternoon
and this evening as it approaches the keys. Gentle southeast or
southeast to south winds will slacken off this evening. The short
term models, like the hrrr are indicating that some pre-frontal
activity, i.E fast moving showers with embedded storms may move
from west to east across the waters this evening. Will be
monitoring this trend through the afternoon. As just mentioned,
this will be a record breaking warm day, with temps hitting the hi
80s. Minor updated already made thru the afternoon for pops and
wind direction.

Marine Will be watching a possible prefrontal boundary of
showers with embedded storms for this evening. My need to issue
some smws if it gets going. Thereafter, a cold front stalled over
the gulf of mexico will surge towards the florida keys tonight,
then blast southeast through the island chain Thursday. Strong
northerly breezes and building seas are expected behind the front,
and small craft advisory conditions are expected Thursday and
Thursday night. Breezes will diminish on Friday, followed by
several days of moderate northeast to east breezes.

Aviation
Vfr conditions are expected to prevail at both keyw and kmth through
the forecast period. Winds will generally be from the east-southeast
below 10 knots. Scattered showers and isolated thunderstorms will
approach the lower keys late tonight, potentially bringing MVFR
conditions to keyw after 06z along with a shift to westerly winds.

Key watches warnings advisories
Fl... None.

Gm... None.

Public marine fire... Futterman
aviation nowcasts... .Cb
upper air data collection... ... Bt
visit us on the web at weather.Gov key
follow us on facebook and twitter at:


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
SMKF1 - Sombrero Key, FL 8 mi65 min 82°F 1017.5 hPa (+1.0)73°F
LONF1 - Long Key, FL 12 mi55 min E 8 G 8.9 82°F 82°F1018.2 hPa (+0.9)74°F
MLRF1 - Molasses Reef, FL 40 mi55 min E 5.1 G 7 81°F 81°F1018.6 hPa (+0.6)
SANF1 - Sand Key, FL 49 mi65 min 82°F 1017.9 hPa (+0.9)74°F

Wind History for Vaca Key, FL
(wind in knots)    EDIT      (on/off)   Help
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
8
AM
9
AM
10
AM
Last
24hr
SW6
G11
SW6
G11
W8
G11
W6
G9
SW5
G8
SW5
S5
G8
SW5
SW5
G8
SW4
G8
S3
SW4
SW5
G8
SW3
G8
S4
S3
G6
SW3
G6
SW5
SW4
G10
SW4
G8
SW4
SW5
SW6
S5
G9
1 day
ago
SW10
G15
SW8
G15
SW6
G13
SW7
G13
SW8
G13
SW7
G12
SW8
G13
SW6
G10
SW6
G11
SW5
G10
SW6
G10
SW6
G10
SW4
G10
SW5
G11
SW4
G9
SW6
SW6
G11
SW7
G11
SW5
G9
SW5
G9
SW7
G11
SW5
G9
SW7
G12
SW7
G10
2 days
ago
SE9
SE9
G12
SE11
S10
G13
S10
G13
S11
G14
S10
G14
S10
S7
G12
S10
G13
S12
G15
S11
G15
S7
G11
S8
G12
S8
G11
S7
G11
S8
G12
SW7
G11
S5
G9
S6
G12
SW7
G13
SW6
G10
SW10
G15
SW9
G15

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
The Florida Keys - Marathon International Airport, FL1 mi62 minESE 710.00 miFair84°F75°F74%1018 hPa

Wind History from MTH (wind in knots)
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
8
AM
9
AM
10
AM
Last 24hrSE8SE7SE6SE5SE5SE5SE6SE5E4E5E4E4E5E5E4E5E4SE5SE7SE7E5SE4SE5E7
1 day agoE11
G18
E8
G16
SE11
G16
SE10
G15
E9
G16
E8E6SE8
G15
SE10
G14
SE8SE7SE10SE7SE10SE10
G15
SE8
G16
SE8SE8SE8SE8SE10SE8SE8SE6
2 days agoNE10NE10NE12NE10NE11NE10NE11E9E9E10E10NE11E10E10E9E10E10E6
G15
E7E6E7E6
G15
E10
G16
SE10
G16

Tide / Current Tables for Vaca Key-Fat Deer Key bridge, Florida
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Vaca Key-Fat Deer Key bridge
Click for Map
Wed -- 12:02 AM EST     1.80 feet High Tide
Wed -- 06:39 AM EST     Sunrise
Wed -- 08:00 AM EST     0.37 feet Low Tide
Wed -- 12:25 PM EST     Moonrise
Wed -- 01:56 PM EST     1.26 feet High Tide
Wed -- 05:37 PM EST     Sunset
Wed -- 07:14 PM EST     0.73 feet Low Tide
Wed -- 11:38 PM EST     Moonset
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
1.81.71.61.41.10.80.60.40.40.40.60.91.11.21.31.21.10.90.80.70.80.91.11.4

Tide / Current Tables for Moser Channel (swingbridge), Florida Current
   EDIT      (on/off)   Help   One Week of Data
Moser Channel (swingbridge)
Click for Map
Wed -- 12:28 AM EST     0.61 knots Max Flood
Wed -- 03:21 AM EST     -0.00 knots Slack
Wed -- 06:40 AM EST     Sunrise
Wed -- 07:02 AM EST     -1.37 knots Max Ebb
Wed -- 10:42 AM EST     0.00 knots Slack
Wed -- 12:26 PM EST     Moonrise
Wed -- 01:14 PM EST     0.96 knots Max Flood
Wed -- 04:58 PM EST     -0.00 knots Slack
Wed -- 05:37 PM EST     Sunset
Wed -- 08:01 PM EST     -1.11 knots Max Ebb
Wed -- 11:36 PM EST     0.00 knots Slack
Wed -- 11:39 PM EST     Moonset
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
0.60.60.40.1-0.3-0.8-1.2-1.4-1.3-0.9-0.40.20.710.90.70.5-0-0.6-1-1.1-1-0.8-0.3

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
GOES 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 Key West, FL (10,2,3,4)
      (on/off)   Help

Ground Weather Radar Station Key West, 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.