Sunday, February17, 2019 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 6:58AMSunset 6:23PM Sunday February 17, 2019 9:28 PM EST (02:28 UTC) Moonrise 4:21PMMoonset 5:11AM Illumination 98% Phase: Waxing Gibbous; Moon at 13 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 Expires:201902180330;;093736 Fzus52 Kkey 172119 Cwfkey Coastal Waters Forecast For The Florida Keys National Weather Service Key West Fl 419 Pm Est Sun Feb 17 2019 Florida Bay...hawk Channel And Straits Of Florida From Ocean Reef To South Of Dry Tortugas...and The Extreme Southeastern Gulf Of Mexico...including The Florida Keys National Marine Sanctuary Seas Are Given As Significant Wave Height...which Is The Average Height Of The Highest 1/3 Of The Waves. Individual Waves May Be More Than Twice The Significant Wave Height. Gmz042>044-180330- 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- Hawk Channel From West End Of Seven Mile Bridge To Halfmoon Shoal Out To The Reef- 419 Pm Est Sun Feb 17 2019
Tonight..Southeast to south winds near 15 knots. Seas 1 to 3 feet. NEarshore waters a moderate chop. Isolated showers.
Monday..Southeast to south winds 10 to 15 knots. Seas 1 to 2 feet. NEarshore waters a light to moderate chop. Isolated showers.
Monday night and Tuesday night..East to southeast winds near 15 knots. Seas 2 to 3 feet. NEarshore waters a moderate chop. Isolated showers.
Tuesday night..East to southeast winds 15 to 20 knots. Seas 2 to 4 feet. NEarshore waters choppy. Isolated showers.
Wednesday..East to southeast winds 15 to 20 knots. Seas 2 to 4 feet. NEarshore waters choppy. Isolated showers.
Wednesday night..Southeast winds near 15 knots. Seas 2 to 3 feet. NEarshore waters a moderate chop. Isolated showers.
Thursday through Friday night..East to southeast winds 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters a light to moderate chop. Isolated 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 171927
afdkey
area forecast discussion
national weather service key west fl
227 pm est Sun feb 17 2019

Discussion In the middle and upper levels(700-200 mb), latest
available satellite imagery overlaid with model streamline
analysis as of 200 pm depicts deep low amplitude troughing
encompassing much of the western CONUS this afternoon. Downstream
of that, a building 590 mb plus ridge continues to intensify
over the western caribbean sea near the cayman islands, with an
attendant expansive east and west oriented ridge extending from
southern mexico east northeast to across the southern bahamas.

South florida and the florida keys are beneath the northern
periphery of this anticyclone.

At the surface and in the lower to middle levels,(surface to 700
mb), latest available land and marine surface observations and
analysis as of 200 pm, details a stationary front extending from
southern georgia west southwest to near houston. South of that,
the westernmost periphery of an anticyclonic ridge crosses south
florida from the central atlantic ocean.

Currently As of 200 pm, skies across the islands and all waters
are sunny. Temperatures have reached between 80 and 85 degrees
across the florida keys island chain, with dewpoints in the upper
60s to lower 70s. C-man stations along the florida reef are
southeast to south between 10 and 15 knots and gusty, with island
platforms at 10 to 15 mph and gusty.

Short term Tonight thru Friday, large scale models continue to
maintain the center of an expansive near 590 dm plus anticyclone
positioned across south florida, the southeastern gulf of mexico,
cuba, the NW caribbean sea, which includes the florida keys.

Surface ridging now extending across the florida peninsula from
the central tropical atlantic will remain in place until Tuesday.

At that point, stronger ridging over the northeastern united
states will build in, resulting in a bit of a tighter mslp
gradient, more typical of mid-late february.

Given that winds will remain east southeast or southeast through
the period, with slightly elevated moisture right near the
surface, expect late night early morning convergence to support a
few showers. For tonight latest hrrr and WRF detected a few
showers developing later due to some weak upglide, but guidance
numbers have decreased a bit from earlier overnight runs, so will
keep just a dime pop in for the overnight period, with dime pops
thereafter this week, or for washingtons birthday through Friday.

High temperatures will reach 80 to 85 degrees and lows will only
fall into the lower to mid 70s thru the week.

Extended Friday night through Sunday, still see near 590 dm
ridging in the area, with heights possibly falling late in the
weekend, but surface ridging just to the north will continue to
keep southeast winds with above normal temperatures continuing and
slight chances for showers. Will carry mid 80s and mid 70s, as
waters warm up by that point.

Marine Scec will be in place again tonight across the florida
straits for increasing winds again. Scec will be in place across
the straits Monday night and Tuesday, with SCA in place across the
straits Tuesday night thru Wednesday night, when scec for place
hawk channel and the offshore gulf waters Tuesday night and
Wednesday. No headlines in place ATTM for Thursday and Friday.

Aviation Vfr conditions expected at both keyw and kmth island
terminals tonight. Just a few to scattered clouds expected with
bases at fl020-025 & fl050-060 respectively. Winds will average
aoa 7 to 11 knots from between 140 and 170 degrees.

Key watches warnings advisories
Fl... None.

Gm... None.

Public marine... Futterman
aviation nowcasts... .Futterman
upper air data collection... ... Chesser
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
VCAF1 - 8723970 - Vaca Key, FL 4 mi41 min 78°F 78°F1016.4 hPa
SMKF1 - Sombrero Key, FL 8 mi39 min 78°F 1015.6 hPa (+1.4)73°F
LONF1 - Long Key, FL 12 mi29 min SE 12 G 14 78°F 76°F1016.3 hPa (+1.5)73°F
PKYF1 - Peterson Key, FL 20 mi89 min 77°F
LRKF1 - Little Rabbit Key, FL 20 mi149 min 79°F
JKYF1 - Johnson Key, FL 23 mi89 min 79°F
MUKF1 - Murray Key, FL 26 mi89 min 78°F
BOBF1 - Bob Allen, FL 28 mi89 min 78°F
WRBF1 - Whipray Basin, FL 28 mi89 min E 6 78°F
BKYF1 29 mi89 min 82°F
GBTF1 - Garfield Bight, FL 33 mi89 min 82°F
TBYF1 34 mi89 min 83°F
WWEF1 35 mi149 min 78°F
BNKF1 - Butternut Key, FL 37 mi89 min 77°F
LMDF1 - Little Madeira, FL 37 mi89 min 80°F
LRIF1 39 mi89 min 78°F
TRRF1 - Taylor River, FL 39 mi89 min 80°F
CWAF1 39 mi149 min 77°F
NRRF1 42 mi89 min 77°F
DKKF1 - Duck Key, FL 42 mi149 min 77°F
TCVF1 - Trout Cove, FL 43 mi149 min 80°F
SREF1 43 mi89 min 75°F
KYWF1 - 8724580 - Key West, FL 43 mi41 min ESE 9.9 G 14
BWSF1 - Blackwater Sound, FL 44 mi149 min 79°F
GBIF1 - Gunboat Island, FL 45 mi89 min 75°F
LSNF1 - Long Sound, FL 46 mi89 min 79°F
LBSF1 - Little Blackwater, FL 46 mi149 min 78°F
TPEF1 - Tarpon Bay East, FL 47 mi149 min 75°F
HCEF1 - Highway Creek, FL 48 mi149 min 81°F
HREF1 48 mi89 min 74°F
THRF1 48 mi149 min 78°F
CANF1 - Cane Patch, FL 48 mi89 min 73°F
SANF1 - Sand Key, FL 49 mi39 min 78°F 1015.9 hPa (+1.7)73°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 mi36 minSE 910.00 miPartly Cloudy81°F73°F79%1016.2 hPa

Wind History from MTH (wind in knots)
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
9
PM
Last 24hrCalmSE3S5S5SE5S6S9S8S5S5S6S8SE7S10S12S8SE10
G15
SE8SE7SE9SE10SE9SE10SE9
1 day agoCalmN3N4CalmN3CalmE3NE3NE4S73NE4NE7--S5S5S8S8S5S5S3S3CalmS3
2 days agoNE9NE7NE6N4N5N3N4N4NE6NE4NE6NE8NE8NE7NE9NE7NE6N5NE5NE4SE3NW3NW3Calm

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
Sun -- 01:19 AM EST     -0.37 feet Low Tide
Sun -- 05:10 AM EST     Moonset
Sun -- 06:56 AM EST     Sunrise
Sun -- 07:35 AM EST     0.88 feet High Tide
Sun -- 12:32 PM EST     0.14 feet Low Tide
Sun -- 04:21 PM EST     Moonrise
Sun -- 06:19 PM EST     Sunset
Sun -- 06:48 PM EST     1.81 feet High 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
-0.2-0.4-0.3-0.10.10.40.70.80.90.70.50.30.20.20.40.71.21.51.71.81.71.410.5

Tide / Current Tables for Moser Channel (swingbridge), Florida Current
   EDIT      (on/off)   Help   One Week of Data
Moser Channel (swingbridge)
Click for Map
Sun -- 12:47 AM EST     -2.47 knots Max Ebb
Sun -- 04:11 AM EST     0.00 knots Slack
Sun -- 05:11 AM EST     Moonset
Sun -- 06:57 AM EST     Sunrise
Sun -- 07:23 AM EST     2.09 knots Max Flood
Sun -- 10:36 AM EST     -0.00 knots Slack
Sun -- 01:37 PM EST     -2.02 knots Max Ebb
Sun -- 04:21 PM EST     Moonrise
Sun -- 04:43 PM EST     0.00 knots Slack
Sun -- 06:20 PM EST     Sunset
Sun -- 07:25 PM EST     1.52 knots Max Flood
Sun -- 10:13 PM EST     -0.00 knots Slack
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
-2.3-2.5-2.1-1.4-0.20.91.72.121.60.7-0.4-1.4-1.9-2-1.6-0.70.31.11.51.51.10.2-0.9

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 (21,6,7,8)
      (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.