Monday, March25, 2019 L-36.com


Marine Weather and Tides
Stock Island, 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 7:24AMSunset 7:41PM Monday March 25, 2019 8:18 PM EDT (00:18 UTC) Moonrise 11:36PMMoonset 9:57AM Illumination 75% Phase: Waning Gibbous; Moon at 20 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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GMZ044 Expires:201903260230;;333953 Fzus52 Kkey 252027 Cwfkey Coastal Waters Forecast For The Florida Keys National Weather Service Key West Fl 427 Pm Edt Mon Mar 25 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>044-260230- 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- 427 Pm Edt Mon Mar 25 2019
Tonight..East to southeast winds 5 to 10 knots, becoming north to northeast this evening. Seas around 1 foot. NEarshore waters smooth to a light chop.
Tuesday..Northwest to north winds near 10 knots. Seas 1 to 2 feet. NEarshore a light chop.
Tuesday night..Northwest to north winds 10 to 15 knots, increasing to near 15 knots. Seas 1 to 3 feet. NEarshore waters a light to moderate chop, becoming a moderate chop. Isolated showers.
Wednesday..Northwest to north winds 15 to 20 knots. Seas 2 to 4 feet. NEarshore waters choppy.
Wednesday night..North to northeast winds 20 to 25 knots. Seas 2 to 5 feet. NEarshore waters very rough.
Thursday..North to northeast winds 20 to 25 knots, decreasing to 15 to 20 knots. Seas 2 to 5 feet. NEarshore waters very rough, becoming choppy. Isolated showers.
Thursday night..Northeast winds increasing to near 20 knots. Seas 2 to 4 feet. NEarshore waters becoming rough. Isolated showers.
Friday..Northeast to east winds 15 to 20 knots. Seas 2 to 4 feet. NEarshore waters choppy. Isolated showers.
Friday night..Northeast to east winds near 15 knots. Seas 2 to 3 feet. NEarshore waters a moderate chop. Isolated showers.
Saturday..East winds near 15 knots. Seas 2 to 3 feet. NEarshore waters a moderate chop. Isolated showers.
Saturday 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 Stock Island, FL
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location: 24.57, -81.75     debug


Area Discussion for - Key West, FL
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Fxus62 kkey 251904
afdkey
area forecast discussion
national weather service key west fl
304 pm edt Mon mar 25 2019

Discussion
Mean layer flow is nearly zonal from mexico through the bahamas.

Low level flow has collapsed across the florida keys as the
western extent of the ridge axis recedes east. Moderate east
breezes have persisted despite the relaxing gradient. Water vapor
imagery highlights a few storm systems across the southeastern
united states, giving way to a broad expanse of dry and stable air
over the yucatan peninsula. Visible satellite imagery reveals
mostly mesoscale processes across south florida and the florida
keys, with slow moving showers waxing and waning near boundary
collisions. Temperatures across the island chain are in the lower
80s with dewpoints near 70. Skies are mostly sunny.

Forecast
The previously mentioned short waves over the southeastern united
states will dig southeastward and coalesce east of florida tonight
through Wednesday. By Wednesday night, low pressure will develop
near or just northeast of the bahamas. Meanwhile, high pressure
will spill southwest through the southern appalachians and the
texas gulf coast. Slight rain chances are expected Tuesday night
as weak low level moisture convergence develops within the
freshening northwest to north breezes. Breezes will try to
strengthen Wednesday, although the heating of south florida will
disturb the synoptic gradient. Windy and cooler weather is
expected Wednesday night through Thursday night as the low level
gradient maximizes the continental airmass advection. Overnight
lows will reach the mid 60s for many locations. Slight rain
chances return by Friday or Friday night for much of the island
chain as low level winds turn to the east and moisten. Only minor
tweaks were needed this cycle for the inherited forecast.

Marine
High pressure centered over the western north atlantic
stretches west across the florida peninsula. Low pressure will
develop east of the carolinas tonight, then sag southward towards
the northern bahamas Wednesday and Wednesday night. Freshening
northerly breezes are expected as the low pressure system nears
the bahamas, and a period of strong north to northeast breezes are
expected Wednesday night and Thursday. Small craft advisory
conditions are expected for all coastal waters. Breezes will
diminish and turn to the east Thursday night through Friday night.

Aviation
PrevailingVFR conditions at both terminals. Expect light southeast
breezes becoming east this evening and north tomorrow morning.

Preliminary point temps pops
Key west 72 81 70 76 - - 10 -
marathon 71 81 68 77 - - 10 -

Key watches warnings advisories
Fl... None.

Gm... None.

Public marine fire... Clr
aviation nowcasts... .Chesser
data collection... ... Dr
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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KYWF1 - 8724580 - Key West, FL 3 mi30 min 77°F 76°F1016.6 hPa
SANF1 - Sand Key, FL 10 mi28 min 76°F 1016.4 hPa (-0.5)67°F
42095 16 mi78 min 78°F1 ft
SMKF1 - Sombrero Key, FL 34 mi28 min 76°F 1015.9 hPa (-0.3)68°F
VCAF1 - 8723970 - Vaca Key, FL 35 mi30 min 77°F 77°F1016.5 hPa

Wind History for Key West, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Key West International Airport, FL1 mi25 minE 710.00 miFair77°F70°F79%1016.5 hPa
Key West Naval Air Station, FL3 mi25 minE 610.00 miA Few Clouds77°F69°F77%1016.3 hPa

Wind History from EYW (wind in knots)
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Last 24hrE7E6E7E8E6E10E7E10E10E5NE4NE5NE75E9E8E9E10E9E8E8E7E7E7
1 day agoE6E8E6E6NE7NE5E7NE6NE5NE6NE5NE5NE5E12E14
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2 days agoN7N6N4N6N4N3NE3NE3NE3NE3NE4E3E7E6E7E56NE7N7N9
G15
6N76NE5

Tide / Current Tables for Cow Key Channel, Florida
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Key West, Florida Current
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Key West
Click for Map
Mon -- 02:09 AM EDT     -0.00 knots Slack
Mon -- 05:11 AM EDT     -1.65 knots Max Ebb
Mon -- 07:26 AM EDT     Sunrise
Mon -- 08:56 AM EDT     0.00 knots Slack
Mon -- 10:57 AM EDT     Moonset
Mon -- 11:08 AM EDT     0.74 knots Max Flood
Mon -- 01:44 PM EDT     -0.00 knots Slack
Mon -- 05:19 PM EDT     -1.89 knots Max Ebb
Mon -- 07:40 PM EDT     Sunset
Mon -- 09:15 PM EDT     0.00 knots Slack
Mon -- 11:55 PM EDT     1.00 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.20.80.1-0.7-1.4-1.6-1.5-1.2-0.600.50.70.70.4-0.2-0.9-1.5-1.9-1.8-1.4-0.9-0.20.50.9

Weather Map and Satellite Images
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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 Key West, FL (20,4,5,8)
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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.