Saturday, March23, 2019 L-36.com


Marine Weather and Tides
Big Coppitt Key, 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 7:26AMSunset 7:40PM Saturday March 23, 2019 10:20 AM EDT (14:20 UTC) Moonrise 9:37PMMoonset 8:29AM Illumination 93% Phase: Waning Gibbous; Moon at 17 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:201903231445;;787354 Fzus52 Kkey 230843 Cwfkey Coastal Waters Forecast For The Florida Keys National Weather Service Key West Fl 443 Am Edt Sat Mar 23 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>044-231445- 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- 443 Am Edt Sat Mar 23 2019
Today..North winds 10 to 15 knots, becoming northeast to east. Seas 1 to 2 feet. NEarshore waters a light to moderate chop.
Tonight..Northeast to east winds increasing to 15 to 20 knots. Seas building to 3 to 4 feet. NEarshore waters becoming choppy.
Sunday..East winds 15 to 20 knots. Seas 2 to 4 feet. NEarshore waters choppy. Isolated showers.
Sunday night..East winds near 15 knots, decreasing to 10 to 15 knots. Seas 2 to 3 feet. NEarshore waters a moderate chop, becoming a light to moderate chop. Isolated showers.
Monday..Northeast to east winds 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters a light to moderate chop. Isolated showers.
Monday night..North to northeast winds 5 to 10 knots. Seas 1 to 2 feet. NEarshore waters smooth to a light chop. Isolated showers.
Tuesday..Northwest to north winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop.
Tuesday night..Northwest to north winds 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters a light to moderate chop. Isolated showers.
Wednesday..North winds 10 to 15 knots. Seas 2 to 4 feet. NEarshore waters a light to moderate chop. Isolated showers.
Wednesday night..Northeast winds 15 to 20 knots. Seas 2 to 4 feet. NEarshore waters choppy. Isolated showers.


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 230859
afdkey
area forecast discussion
national weather service key west fl
459 am edt Sat mar 23 2019

Discussion
Currently
Along the island chain, skies are clear with temperatures ranging
from 58 degrees here at the key west office on white street to 68
degrees at the marathon heat island asos. Of course, local radars
are void of any precipitation echoes in our region. Surface wise,
our region lies on the southern periphery of a large area of high
pressure centered over the wisconsin badger state. On our marine
district, winds are mainly north near 15 knots on the nearshore
waters adjacent to the upper keys, to 4 knots at smith shoal light
and pulaski shoal light.

Short term (today through Monday night)
a large high pressure cell extending from the upper great lakes
southward into the eastern gulf of mexico and the florida
peninsula will slowly migrate into the western atlantic ocean on
Sunday, before retreating further offshore but with a ridge axis
aligned into the sunshine state early next week. Extremely dry air
will gradually moisten within subtle upglide below 800 mb from
late Sunday into early Monday morning. Otherwise, mid and upper
level lift will be lacking with a decoupled flow through the
period. With that, rain chances will be left out through Sunday,
with dime to perhaps 20 percent pops thereafter.

Long term (Tuesday through Friday)
another expansive, continental region of high pressure will bridge
over a decaying cold front sagging down the sunshine state on
Tuesday and Wednesday, with an extensive ridge holding firm along
the eastern seaboard and down the florida peninsula for the
remainder of next week. Given an absence of mid and upper level
ascent and limited moisture below a stable layer near 850 mb,
nickle to dime pops will be inserted through the period.

High temperatures will average in the upper 70s to near 80 with
overnight lows ranging from the mid 60s to around 70 degrees.

By Friday, breezy to perhaps windy conditions are possible.

Marine
A small craft advisory may be required for the straits of florida
with an exercise caution likely on other portions of our marine
district tonight and Sunday. Otherwise, light to gentle winds will
prevail today and again late Sunday night through Monday night.

Aviation
Vfr conditions will prevail at both island terminals. Light
northerly winds will gradually veer east-northeasterly. There may be
a few gusts to near 20 knots this morning, particularly at mth, in
association with drainage from the mainland.

Climate
In 1986, the daily record low temperature of 53 degrees was
recorded in key west. Temperature records date back to 1872.

Preliminary point temps pops
Key west 77 69 80 73 0 0 - 20
marathon 80 70 83 73 0 0 - 20

Key watches warnings advisories
Fl... None.

Gm... None.

Public marine fire... Apa
aviation nowcasts... .Wlc
data collection... ... Bt
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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 mi32 min 71°F 75°F1022.5 hPa
SANF1 - Sand Key, FL 20 mi30 min 68°F 1022.4 hPa (+2.6)52°F
SMKF1 - Sombrero Key, FL 23 mi30 min 67°F 1021.7 hPa (+2.5)53°F
42095 25 mi170 min 77°F2 ft
VCAF1 - 8723970 - Vaca Key, FL 25 mi32 min 66°F 71°F1022.5 hPa
JKYF1 - Johnson Key, FL 48 mi80 min 68°F
LRKF1 - Little Rabbit Key, FL 48 mi140 min 67°F
MUKF1 - Murray Key, FL 49 mi80 min 68°F
PKYF1 - Peterson Key, FL 49 mi80 min 70°F

Wind History for Key West, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Key West Naval Air Station, FL9 mi27 minE 710.00 miMostly Cloudy72°F54°F53%1022.4 hPa
Key West International Airport, FL12 mi27 minE 610.00 miMostly Cloudy71°F55°F57%1022.5 hPa

Wind History from NQX (wind in knots)
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Last 24hrNE13N11N10N13N11N12N12N12N12N9N10N10N7N8N6NE4NE4NE4NE4NE3NE4E7E10E7
1 day agoN13N14N15N15N15N18N18N17N13N16--NW17NW15--NW16N14NW16NW17
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2 days agoN13N15N14N14N14N14N14N11N11NW10NW7N12N9NE9NE8NE8NE8NE6N9N10N9N10N10N13

Tide / Current Tables for Key Lois, southeast end, Florida
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Key Lois
Click for Map
Sat -- 05:04 AM EDT     -0.03 feet Low Tide
Sat -- 07:27 AM EDT     Sunrise
Sat -- 09:29 AM EDT     Moonset
Sat -- 11:00 AM EDT     1.88 feet High Tide
Sat -- 05:48 PM EDT     -0.34 feet Low Tide
Sat -- 07:38 PM EDT     Sunset
Sat -- 10:36 PM EDT     Moonrise
Sat -- 11:56 PM EDT     1.42 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.51.30.90.40.1-00.10.511.41.81.91.81.510.50-0.3-0.3-0.20.20.711.3

Tide / Current Tables for Key West, Florida Current
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Key West
Click for Map
Sat -- 12:36 AM EDT     -0.00 knots Slack
Sat -- 03:43 AM EDT     -2.22 knots Max Ebb
Sat -- 07:20 AM EDT     0.00 knots Slack
Sat -- 07:28 AM EDT     Sunrise
Sat -- 09:30 AM EDT     Moonset
Sat -- 09:52 AM EDT     1.27 knots Max Flood
Sat -- 12:35 PM EDT     -0.00 knots Slack
Sat -- 03:54 PM EDT     -2.31 knots Max Ebb
Sat -- 07:33 PM EDT     0.00 knots Slack
Sat -- 07:39 PM EDT     Sunset
Sat -- 10:21 PM EDT     1.50 knots Max Flood
Sat -- 10:37 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.6-0.4-1.4-2.1-2.2-1.9-1.2-0.30.61.11.310.5-0.4-1.4-2.1-2.3-2-1.4-0.50.41.11.51.4

Weather Map and Satellite Images
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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 (10,2,3,4)
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Ground Weather Radar Station Key West, FL
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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.