Saturday, November18, 2017 L-36.com


Marine Weather and Tides
Marathon, 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 6:44AMSunset 5:40PM Saturday November 18, 2017 8:21 PM EST (01:21 UTC) Moonrise 6:42AMMoonset 6:05PM Illumination 0% Phase: New Moon; Moon at 0 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
GMZ053 Straits Of Florida From Ocean Reef To Craig Key Out 20 Nm- Straits Of Florida From Craig Key To West End Of Seven Mile Bridge Out 20 Nm- Straits Of Florida From West End Of Seven Mile Bridge To South Of Halfmoon Shoal Out 20 Nm- Straits Of Florida From Halfmoon Shoal To 20 Nm West Of Dry Tortugas Out 20 Nm- Straits Of Florida From Ocean Reef To Craig Key 20 To 60 Nm Out- Straits Of Florida From Craig Key To West End Of Seven Mile Bridge 20 To 60 Nm Out- Straits Of Florida From West End Of Seven Mile Bridge To South Of Halfmoon Shoal 20 To 60 Nm Out- Straits Of Florida From Halfmoon Shoal To 20 Nm West Of Dry Tortugas 20 To 60 Nm Out- 420 Pm Est Sat Nov 18 2017
Tonight..Northeast to east winds near 10 knots, becoming north after midnight. Seas 2 to 3 feet. Isolated showers.
Sunday..Northwest to north winds 10 to 15 knots. Seas 2 to 4 feet. Isolated showers.
Sunday night..Northwest to north winds 10 to 15 knots, becoming northeast and increasing to 15 to 20 knots after midnight. Seas 2 to 4 feet, building to 4 to 6 feet. Isolated showers.
Monday..Northeast to east winds near 20 knots. Seas 4 to 7 feet. Scattered showers.
Monday night..East winds 15 to 20 knots. Seas 4 to 6 feet. Scattered showers.
Tuesday..East to southeast winds near 15 knots, decreasing to near 10 knots by noon. Seas 3 to 5 feet, subsiding to 2 to 4 feet. Scattered showers.
Tuesday night..East to southeast winds near 10 knots. Seas 2 to 3 feet. Scattered showers.
Wednesday..Variable winds 5 to 10 knots, becoming west to northwest and increasing to 10 to 15 knots in the afternoon. Seas around 2 feet, building to 2 to 4 feet. Scattered showers.
Wednesday night..West to northwest winds near 15 knots. Seas 3 to 5 feet. Scattered showers.
Thursday..Northwest winds 15 to 20 knots. Seas 4 to 6 feet. Scattered showers.
Thursday night..Northwest to north winds 15 to 20 knots. Seas 4 to 6 feet. 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 181913
afdkey
area forecast discussion
national weather service key west fl
213 pm est Sat nov 18 2017

Discussion
Currently
Kbyx detects no precipitation echoes. Skies over the island chain
are mostly sunny. Winds over land are northeast near 10 mph. C-man
winds, on average, are northeast to east at 10 to 15 knots.

Temperatures are near 80 degrees.

Short term (tonight through Monday night)
A weak cold front will progress southward down the florida
peninsula tonight and Sunday. This feeble cold front should pass
through the florida keys Sunday night. The cold front should stall
over the bahamas Monday, before moving northward as a warm front
Monday night. Rain chances will increase late this weekend into
early next week as low level winds turn to more of an easterly
direction and, in turn, atmospheric moisture deepens.

Long term (Tuesday through Saturday)
A stationary front will be located near the florida keys Tuesday.

Cyclogenesis is likely in the central or eastern gulf of mexico,
starting as early as Tuesday night. Forecast confidence is low
regarding the intensity of cyclogenesis expected Wednesday and
Wednesday night. A cold front may pass through the florida keys
Thursday or Thursday night. An area of high pressure should build
southward down the florida peninsula Friday through Saturday. Rain
chances Tuesday through Thursday night will be above normal for
this time of year to the aforementioned cyclogenesis and the
potential passage of a cold front.

Marine
Gentle northeast to east breezes will turn to the north and become
light tonight. No advisories expected tonight and Sunday. A small
craft advisory may be required for the coastal waters of the
offshore gulf of mexico Sunday night. A small craft advisory will
likely be required for the coastal waters of the atlantic and
offshore gulf of mexico Monday. A small craft advisory may be
required for the coastal waters of florida bay and the nearshore
gulf of mexico Monday. A small craft advisory may be required for
the coastal waters of the gulf of mexico and atlantic Monday
night. No advisories expected Tuesday through Thursday night.

Aviation
Vfr conditions will prevail through at least 19 18z at eyw and
mth. Expect northeasterly breezes of 7 to 10 knots, becoming
light, with general flow backing to the north. Northerly winds
will increase to near 10 knots by 19 15z Sunday morning.

Climate
On this date in keys weather history, in 1886, a high temperature
of 90 degrees was recorded in key west. This set the daily record
for maximum temperature on november 18th, which still stands 131
years later. Thankfully, the high temperature this afternoon
should remain nearly 10 degrees below this record today!
temperature records at key west date back to 1872.

Preliminary point temps pops
Key west 70 80 70 79 0 0 20 30
marathon 70 81 70 80 0 0 20 30

Key watches warnings advisories
Fl... None.

Gm... None.

Public marine fire... Bs
aviation nowcasts... .Mclovin
data collection... ... L. Kasper
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
PKYF1 - Peterson Key, FL 20 mi82 min 76°F
LRKF1 - Little Rabbit Key, FL 20 mi142 min 75°F
JKYF1 - Johnson Key, FL 23 mi142 min 76°F
WRBF1 - Whipray Basin, FL 28 mi142 min NNE 5.1 77°F
BOBF1 - Bob Allen, FL 28 mi82 min 77°F
BKYF1 29 mi82 min 77°F
GBTF1 - Garfield Bight, FL 33 mi82 min 76°F
TBYF1 34 mi82 min 77°F
WWEF1 35 mi142 min 77°F
LMDF1 - Little Madeira, FL 37 mi82 min 77°F
BNKF1 - Butternut Key, FL 37 mi82 min 75°F
LRIF1 39 mi82 min 77°F
CWAF1 39 mi142 min 76°F
TRRF1 - Taylor River, FL 39 mi82 min 78°F
MLRF1 - Molasses Reef, FL 40 mi82 min Calm G 1.9 77°F 80°F1014.2 hPa (+1.0)
NRRF1 42 mi82 min 76°F
DKKF1 - Duck Key, FL 42 mi142 min 75°F
TCVF1 - Trout Cove, FL 43 mi142 min 78°F
SREF1 43 mi82 min 76°F
BWSF1 - Blackwater Sound, FL 44 mi142 min 76°F
GBIF1 - Gunboat Island, FL 45 mi82 min 76°F
LSNF1 - Long Sound, FL 46 mi82 min 77°F
LBSF1 - Little Blackwater, FL 46 mi142 min 77°F
TPEF1 - Tarpon Bay East, FL 47 mi142 min 76°F
HCEF1 - Highway Creek, FL 48 mi142 min 76°F
HREF1 48 mi82 min 75°F
CANF1 - Cane Patch, FL 48 mi142 min 76°F
SANF1 - Sand Key, FL 49 mi32 min 76°F 1015.1 hPa (+0.9)64°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
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
The Florida Keys - Marathon International Airport, FL1 mi29 minN 010.00 miFair74°F66°F79%1014.4 hPa

Wind History from MTH (wind in knots)
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
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
Last 24hrNE11NE13NE11NE10NE12N9NE9NE8NE6NE6N7N8NE10N8NE10NE11NE7N7NE8NE7NE5NE3N3Calm
1 day agoN11N11N11N11N11NE11NE11N10NE11NE13NE10NE13NE13
G19
N11NE12NE14NE14NE11NE13NE14NE14NE13NE13
G19
NE11
2 days agoN9N9N12N11N12N8N11N10N12
G19
N13N13N11
G19
N12N13
G20
N12
G17
N11N10N9NE9N9N10NE8N10
G16
N8

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
Sat -- 02:47 AM EST     0.06 feet Low Tide
Sat -- 06:41 AM EST     Moonrise
Sat -- 06:42 AM EST     Sunrise
Sat -- 06:42 AM EST     New Moon
Sat -- 08:52 AM EST     1.54 feet High Tide
Sat -- 02:22 PM EST     0.48 feet Low Tide
Sat -- 05:35 PM EST     Sunset
Sat -- 06:04 PM EST     Moonset
Sat -- 08:12 PM EST     2.06 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.80.40.10.10.20.50.91.21.51.51.41.20.90.60.50.50.81.21.61.92.121.81.5

Tide / Current Tables for Moser Channel (swingbridge), Florida Current
   EDIT      (on/off)   Help   One Week of Data
Moser Channel (swingbridge)
Click for Map
Sat -- 02:17 AM EST     -2.25 knots Max Ebb
Sat -- 05:36 AM EST     0.00 knots Slack
Sat -- 06:42 AM EST     Moonrise
Sat -- 06:42 AM EST     New Moon
Sat -- 06:42 AM EST     Sunrise
Sat -- 08:41 AM EST     1.85 knots Max Flood
Sat -- 11:53 AM EST     -0.00 knots Slack
Sat -- 02:54 PM EST     -1.89 knots Max Ebb
Sat -- 05:36 PM EST     Sunset
Sat -- 06:05 PM EST     Moonset
Sat -- 06:06 PM EST     0.00 knots Slack
Sat -- 08:36 PM EST     1.25 knots Max Flood
Sat -- 11:28 PM EST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1-1.9-2.2-2.1-1.6-0.70.41.31.81.81.60.9-0.1-1.1-1.7-1.9-1.6-1-0.10.71.21.210.4

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Key West, FL (20,4,5,8)
      (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.