Friday, March24, 2017 L-36.com


Marine Weather and Tides
Big Coppitt Key, 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 7:24AMSunset 7:41PM Friday March 24, 2017 12:22 AM EDT (04:22 UTC) Moonrise 3:59AMMoonset 3:29PM Illumination 12% Phase: Waning Crescent; Moon at 26 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 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- 1027 Pm Edt Thu Mar 23 2017
.small craft advisory in effect...
Overnight..Northeast to east winds 20 to 25 knots. Seas 1 to 3 feet building to 3 to 5 feet late. NEarshore waters very rough. Scattered showers and isolated Thunderstorms.
Friday..Northeast to east winds near 20 knots. Seas 3 to 5 feet. NEarshore waters rough. Scattered showers.
Friday night..East winds near 20 knots. Seas 3 to 5 feet. NEarshore waters rough. Isolated showers.
Saturday..East winds 15 to 20 knots. Seas 3 to 4 feet. NEarshore waters choppy. Isolated showers.
Saturday night..East winds near 15 knots. Seas 2 to 4 feet. NEarshore waters a moderate chop. Isolated showers.
Sunday..East winds 10 to 15 knots. Seas 2 to 3 feet. NEarshore waters a light to moderate chop. Isolated showers.
Sunday night through Monday night..East winds 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters a light to moderate chop.
Tuesday and Tuesday night..East winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop.

7 Day Forecast for Marine Location Near Big Coppitt Key, FL
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location: 24.55, -81.53     debug


Area Discussion for - Key West, FL
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Fxus62 kkey 240212
afdkey
area forecast discussion
national weather service key west fl
1012 pm edt Thu mar 23 2017

Discussion
Currently
It has been an active evening on radar, with a 'backdoor front'
impacting southern florida and the island chain around the edge
of strong ridging centered off the carolina coastline. Convection
fired off the southwest peninsula and entered the coastal waters
of our CWA around 21/22z, producing thunderstorms with wind gusts
of 30-50 mph, with ramrod key clocking the highest gust at 52 mph
just after 7pm.

As of 10pm, weakening showers and thunderstorms were present
across the florida straits, with stronger convection located
farther upstream off the coast of miami. Temperatures were in the
upper 60s to low 70s, and dew points were in the low to mid 60s.

Cwop stations report winds gusting out of the northeast to 15-20
mph across the middle and upper keys. Cman stations are reporting
increasing winds out of the northeast, with 10-15 knots across the
southeastern gulf, but gusts up to 26 knots at fowey rocks.

Short term
The frontal boundary will continue to gradually sink southward
through the day Friday, with moisture erroding from west to east
along the feature. Expect a change of storm motion as winds veer
eastward, causing south-moving showers to begin drifting westward
after 06z. A 40 percent pop remains in place overnight, with 30
percent pop Friday. Thunderstorm chances will diminish after
sunrise. Winds will remain quite gusty through the beginning of
the weekend. Expect temperatures near climo, with lows tonight
near 70, and highs near 80.

Marine
A small craft advisory remains in place for all coastal waters to
the florida keys through at least early Friday morning for
northeast to east winds increasing to 20 to 25 knots. Fresh
breezes, creating poor marine conditions, will likely continue
for the first part of the weekend. As a high pressure system near
the carolina coastline departs to the northeast on Sunday, the
pressure gradient across the coastal waters will relax, leading
to slacking winds on Sunday and early next week.

Aviation
Until 12z/24th, expect showers and isolated thunderstorms to
increase in coverage along the island chain, hence, a few subVFR
encounters are expected at the key west and marathon terminals.

Northeast winds of around 10 knots will become northeast to east and
increase to 12 to 16 knots with gusts of 20 to 23 knots at the
island airports overnight.

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

Gm... Small craft advisory until 11 am edt Friday for gmz031>035-
042>044-052>055-072>075.

Public/marine/fire... Mclovin
aviation/nowcasts... .Apa
data collection... ... Chesser
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
KYWF1 - 8724580 - Key West, FL 15 mi53 min NE 6 G 16
SANF1 - Sand Key, FL 20 mi33 min E 17 G 19 73°F 1023.5 hPa (+1.9)61°F
VCAF1 - 8723970 - Vaca Key, FL 25 mi53 min E 9.9 G 13 72°F 76°F1023.2 hPa
LONF1 - Long Key, FL 41 mi83 min E 14 G 15 73°F 75°F1023.2 hPa (+0.7)65°F

Wind History for Key West, FL
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NE4
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NE5
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Key West Naval Air Station, FL9 mi30 minNE 13 G 19 miFair72°F64°F76%1022.8 hPa
Key West International Airport, FL12 mi30 minVar 610.00 miFair73°F64°F76%1023.2 hPa

Wind History from NQX (wind in knots)
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Last 24hrN6N8N6N7N9--N10N6N8N10N9N8N9N9N9E11E11E7E8NE14
G24
NE4NE10NE8NE13
G19
1 day agoNE5NE4NE6N5N8--NE6NE7NE11N9NE9N8
G20
N8N9N9N9N9N10N8N9N7NW6N5N5
2 days agoNE4NE5NE5NE5NE6--NE6NE6NE6E9NE8NE11NE8NE8E9E11E12E11E9E9E8E6NE6E5

Tide / Current Tables for Key Lois, southeast end, Florida
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Key Lois
Click for Map
Fri -- 01:20 AM EDT     -0.03 feet Low Tide
Fri -- 04:58 AM EDT     Moonrise
Fri -- 07:25 AM EDT     Sunrise
Fri -- 07:29 AM EDT     1.14 feet High Tide
Fri -- 12:56 PM EDT     0.24 feet Low Tide
Fri -- 04:28 PM EDT     Moonset
Fri -- 07:08 PM EDT     1.64 feet High Tide
Fri -- 07:38 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.1-000.20.40.711.11.110.80.50.30.20.30.60.91.31.51.61.61.410.6

Tide / Current Tables for Bahía Honda Harbor (Bridge) Florida Current
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Bahía Honda Harbor (Bridge) Florida Current
Click for Map
Fri -- 12:22 AM EDT     -2.15 knots Max Ebb
Fri -- 03:45 AM EDT     0.00 knots Slack
Fri -- 04:57 AM EDT     Moonrise
Fri -- 06:37 AM EDT     1.40 knots Max Flood
Fri -- 07:24 AM EDT     Sunrise
Fri -- 09:40 AM EDT     -0.00 knots Slack
Fri -- 12:59 PM EDT     -2.00 knots Max Ebb
Fri -- 04:10 PM EDT     0.00 knots Slack
Fri -- 04:27 PM EDT     Moonset
Fri -- 06:41 PM EDT     1.24 knots Max Flood
Fri -- 07:38 PM EDT     Sunset
Fri -- 09:34 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-2.1-2.1-1.6-0.80.211.41.41.20.6-0.3-1.2-1.8-2-1.8-1.1-0.20.71.21.210.5-0.4-1.4

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 (0,6,7,8)
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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.