Wednesday, March29, 2017 L-36.com


Marine Weather and Tides
Marathon, FL

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 7:19AMSunset 7:43PM Wednesday March 29, 2017 10:41 PM EDT (02:41 UTC) Moonrise 7:34AMMoonset 8:31PM Illumination 7% Phase: Waxing Crescent; Moon at 3 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
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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- Hawk Channel From West End Of Seven Mile Bridge To Halfmoon Shoal Out To The Reef- 1025 Pm Edt Wed Mar 29 2017
Overnight..East to southeast winds near 10 knots...increasing to 10 to 15 knots. Seas 1 to 2 feet. NEarshore waters a light chop...becoming a light to moderate chop.
Thursday..Southeast winds near 15 knots. Seas 1 to 3 feet. NEarshore waters a moderate chop.
Thursday night..Southeast winds 15 to 20 knots. Seas 2 to 3 feet. NEarshore waters choppy.
Friday..South winds near 15 knots...decreasing to near 10 knots. Seas 2 to 3 feet...subsiding to 1 to 2 feet. NEarshore waters a moderate chop...becoming a light chop.
Friday night..South to southwest winds near 10 knots...decreasing to 5 to 10 knots. Seas 1 to 2 feet...subsiding to around 1 foot. NEarshore waters smooth to a light chop. Isolated showers.
Saturday..Variable winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop. Isolated showers.
Saturday night..Variable winds 5 to 10 knots...becoming east to southeast and increasing to 10 to 15 knots. Seas building to 1 to 2 feet. NEarshore waters becoming a light to moderate chop. Isolated showers.
Sunday through Monday night..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
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location: 24.73, -81.03     debug


Area Discussion for - Key West, FL
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Fxus62 kkey 291926
afdkey
area forecast discussion
national weather service key west fl
326 pm edt Wed mar 29 2017

Discussion In the middle to upper level(700-200 mb), latest
available model streamline analysis overlaid on top of satelitte
imagery as of 300 pm depict the next strong middle and upper low
pressure migrating eastwards over western oklahoma. This system is
betwixt two synoptic ridges within a continued typical
progressive pattern, with one ridge axis downstream situated from
the eastern great lakes down to northern florida, and another
upstream along the west coast.

At the surface and in the lower to middle levels(surface to 700
mb), latest satelitte imagery overlaid with marine and land
surface observations and analysis as of 300 pm, details an area of
low pressure moving NE over central oklahoma swinging a cold front
south down to the southern rio grande valley. The keys are south
of 1016 weak broad surface ridge across the peninsula.

Currently Skies are mostly sunny across the islands and
adjoining waters as of 300 pm, with the exception of a few showers
which formed along boundaries. The showers are south of the middle
florida keys but are decreasing in intensity. Temperatures have
reached into the mid 80s across the island chain this afternoon,
with dewpoints in the mid to upper 60s. C-man stations along the
florida reef are recording southeast winds near 10 knots, but only
5 to 10 knots in florida bay.

Short term Tonight thru Saturday, surface frontal system over
texas will move eastwards along with the aforementioned cold core
middle and upper level system, bringing severe weather eastward
towards the lower mississippi valley Thursday and Thursday night.

Winds have been consistently progged to increase tomorrow and
tomorrow night across the islands, given this isallobaric
gradient as the main (primary) surface low darts up towards
chicago by Friday morning. On Friday the attendant front from this
low will gradually put the brakes on to our north across the
florida peninsula, so moderate south winds in the morning will
become light and variable for Friday night and Saturday. Weak
lower level confluence is all that exists ahead of this dying
front, so will maintain a slight chance for showers Friday night
thru Saturday night. High temperatures in the mid 80s can be
expected, just a couple of degrees above normal for Thursday, but
given the gentle to moderate south direction, upper 80s look very
promising for Saturday. Lows will be rising from lower to mid 70s.

Long term Saturday night thru Wednesday, a continuation of
very warm weather will continue. Another ridge will set up
Saturday night thru at least Monday night. Additional disturbances
moving by to the NW with frontal behavior becoming less of a
control, will see additional surges in the winds once again for
the second half of the weekend and early next week. Highs in the
mid 80s and lows in the mid 70s will be a few degrees above
normal.

Marine Scec or SCA conditions not anticipated across the waters
tonight, but scec conditions are likely across the straits
Thursday and Thursday night, possibly in hawk channel. Winds and
seas will let down again by late Friday, with scec conditions
possible again Sunday and early next week across the same areas.

Aviation
Vfr conditions will prevail at eyw and mth this afternoon through at
least Thursday morning. Sustained east to southeast winds of 10 to
15 knots expected from just off the surface to about 3,000 feet.

Climate
On this date in florida keys weather history, in 1906, 1.44 inches
of rain fell in key west. This set the daily record for maximum
rainfall measured in key west on march 29th, a record which still
stands 111 years later. Rainfall records at key west date back to
1871.

Preliminary point temps/pops
Key west 73 85 74 85 / - - - -
marathon 73 86 73 87 / - - - -

Key watches/warnings/advisories
Fl... None.

Gm... None.

Public/marine... Futterman
aviation/nowcasts... .Bs
upper air/data collection... ... Vickery
visit us on the web at weather.Gov/key
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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
VCAF1 - 8723970 - Vaca Key, FL 4 mi42 min E 5.1 G 8 76°F 80°F1017.3 hPa (+1.7)
LONF1 - Long Key, FL 12 mi102 min ESE 8 G 8.9 76°F 79°F1016.7 hPa (+1.2)64°F
PKYF1 - Peterson Key, FL 20 mi102 min 79°F
LRKF1 - Little Rabbit Key, FL 20 mi162 min 80°F
JKYF1 - Johnson Key, FL 23 mi162 min 82°F
MUKF1 - Murray Key, FL 26 mi102 min 78°F
WRBF1 - Whipray Basin, FL 28 mi162 min E 4.1 82°F
BOBF1 - Bob Allen, FL 28 mi102 min 81°F
BKYF1 29 mi102 min 85°F
GBTF1 - Garfield Bight, FL 33 mi102 min 84°F
TBYF1 34 mi102 min 85°F
WWEF1 35 mi162 min 80°F
LMDF1 - Little Madeira, FL 37 mi102 min 81°F
BNKF1 - Butternut Key, FL 37 mi102 min 79°F
TRRF1 - Taylor River, FL 39 mi102 min 85°F
LRIF1 39 mi102 min 81°F
CWAF1 39 mi162 min 80°F
MLRF1 - Molasses Reef, FL 40 mi102 min NE 6 G 8.9 76°F 79°F1016.9 hPa (+0.9)
NRRF1 42 mi102 min 80°F
DKKF1 - Duck Key, FL 42 mi162 min 80°F
SREF1 43 mi102 min 78°F
TCVF1 - Trout Cove, FL 43 mi162 min 83°F
KYWF1 - 8724580 - Key West, FL 43 mi42 min E 2.9 G 5.1 76°F 80°F1016.2 hPa (+1.6)
BWSF1 - Blackwater Sound, FL 44 mi162 min 81°F
GBIF1 - Gunboat Island, FL 45 mi102 min 77°F
LBSF1 - Little Blackwater, FL 46 mi162 min 81°F
LSNF1 - Long Sound, FL 46 mi102 min 82°F
TPEF1 - Tarpon Bay East, FL 47 mi162 min 78°F
CANF1 - Cane Patch, FL 48 mi162 min 78°F
HREF1 48 mi102 min 76°F
HCEF1 - Highway Creek, FL 48 mi162 min 83°F
SANF1 - Sand Key, FL 49 mi52 min E 12 G 14 77°F 1016.9 hPa (+1.6)64°F

Wind History for Vaca Key, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Marathon, Marathon Airport, FL1 mi49 minE 510.00 miFair77°F66°F69%1016.7 hPa

Wind History from MTH (wind in knots)
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Last 24hrE3E3CalmE3E4E4SE6SE5SE4SE6SE5SE4SE6SE5SE6E7E555SE45E5E5E5
1 day agoE8E6E4NE5E4NE4NE3NE4NE6NE5NE7NE7NE7N7NE6NE8N7544S4CalmSE3SE4
2 days agoE8E7E9E7E6E7E6E6NE6NE6N8N8NE9NE10NE10NE10NE10E9E10
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Tide / Current Tables for Vaca Key-Fat Deer Key bridge, Florida
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Vaca Key-Fat Deer Key bridge
Click for Map
Wed -- 04:25 AM EDT     -0.04 feet Low Tide
Wed -- 07:18 AM EDT     Sunrise
Wed -- 08:33 AM EDT     Moonrise
Wed -- 10:19 AM EDT     1.68 feet High Tide
Wed -- 05:02 PM EDT     -0.33 feet Low Tide
Wed -- 07:39 PM EDT     Sunset
Wed -- 09:30 PM EDT     Moonset
Wed -- 11:10 PM EDT     1.41 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.30.90.50.2-000.30.71.11.51.71.61.410.60.1-0.2-0.3-0.20.10.50.91.31.4

Tide / Current Tables for Moser Channel (swingbridge), Florida Current
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Moser Channel (swingbridge)
Click for Map
Wed -- 01:34 AM EDT     -0.00 knots Slack
Wed -- 04:38 AM EDT     -2.56 knots Max Ebb
Wed -- 07:19 AM EDT     Sunrise
Wed -- 07:57 AM EDT     0.00 knots Slack
Wed -- 08:34 AM EDT     Moonrise
Wed -- 10:33 AM EDT     1.95 knots Max Flood
Wed -- 01:36 PM EDT     -0.00 knots Slack
Wed -- 04:51 PM EDT     -2.69 knots Max Ebb
Wed -- 07:39 PM EDT     Sunset
Wed -- 08:10 PM EDT     0.00 knots Slack
Wed -- 09:31 PM EDT     Moonset
Wed -- 11:00 PM EDT     2.32 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.60.7-0.5-1.7-2.4-2.5-2-1.10.11.21.91.91.40.6-0.4-1.6-2.5-2.7-2.3-1.4-0.21.122.3

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Key West, FL (22,6,7,8)
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Ground Weather Radar Station Key West, FL
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weather_mapweather_map weather_map

Gulf Stream Current


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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.