Thursday, April2, 2020
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Marine Weather and Tides
Key West, FL

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 7:15AMSunset 7:45PM Thursday April 2, 2020 2:42 PM EDT (18:42 UTC) Moonrise 1:10PMMoonset 2:12AM Illumination 72% Phase: Waxing Gibbous; Moon at 10 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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GMZ075 Expires:202004022030;;458704 Fzus52 Kkey 021425 Cca Cwfkey Coastal Waters Forecast For The Florida Keys...corrected National Weather Service Key West Fl 1025 Am Edt Thu Apr 2 2020 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. Gmz052>055-072>075-022030- Straits Of Florida From Ocean Reef To Craig Key Out 20 Nm- Straits Of Florida From Craig Key To West End Of Seven Mile Bridge Out 20 Nm- Straits Of Florida From West End Of Seven Mile Bridge To South Of Halfmoon Shoal Out 20 Nm- Straits Of Florida From Halfmoon Shoal To 20 Nm West Of Dry Tortugas Out 20 Nm- Straits Of Florida From Ocean Reef To Craig Key 20 To 60 Nm Out- Straits Of Florida From Craig Key To West End Of Seven Mile Bridge 20 To 60 Nm Out- Straits Of Florida From West End Of Seven Mile Bridge To South Of Halfmoon Shoal 20 To 60 Nm Out- Straits Of Florida From Halfmoon Shoal To 20 Nm West Of Dry Tortugas 20 To 60 Nm Out- 1025 Am Edt Thu Apr 2 2020
This afternoon..Northeast winds 10 to 15 knots, decreasing to near 10 knots. Seas 2 to 4 feet.
Tonight..Northeast to east winds near 10 knots. Seas 2 to 5 feet, highest off the upper keys.
Friday..East winds 10 to 15 knots. Seas 2 to 5 feet, highest off the upper keys.
Friday night and Saturday..East winds 10 to 15 knots. Seas 2 to 4 feet.
Saturday night..East winds 10 to 15 knots. Seas 3 to 5 feet.
Sunday..East to southeast winds near 15 knots. Seas 3 to 5 feet. Isolated showers.
Sunday night..East to southeast winds 15 to 20 knots. Seas 3 to 6 feet. Isolated showers.
Monday..East to southeast winds near 15 knots. Seas 3 to 5 feet. Isolated showers.
Monday night..East to southeast winds 15 to 20 knots. Seas 3 to 6 feet. Isolated showers.


7 Day Forecast for Marine Location Near Key West, FL
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location: 24.55, -82.13     debug


Area Discussion for - Key West, FL
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FXUS62 KKEY 021431 AFDKEY

Area Forecast Discussion National Weather Service Key West FL 1031 AM EDT Thu Apr 2 2020

DISCUSSION. Fair weather prevails this morning and will continue through Saturday. The 00z KEY sounding observed a Precipitable Water (PW) value of 0.63", which is well below the climatological 10th percentile for this week of the year. Surface dewpoints in the low- to mid-60s also reflect the comfortably dry air mass. Nothing more than fair weather cumulus is expected as gentle northeast breezes become more easterly on Friday.

Breezes will freshen on Saturday night and Sunday. Therefore, Saturday will be the better boating day this weekend.

MARINE. With easing northeast winds, seas over the Gulf waters are in the process of subsiding. At Pulley Ridge, seas peaked near 6 feet last evening and are now subsiding through 4 feet. Over the Straits off the Upper Keys, north swell will continue to hold seas locally up near 5 feet through tonight. Otherwise, gentle to occasionally moderate northeast then east breezes will prevail through the day on Saturday. Easterly breezes will freshen on Saturday night and Sunday.

From synopsis . A surface high pressure cell will extend from the Great Lakes to northern Florida through Friday, moving to the western North Atlantic on Saturday. As a result, breezes will turn quickly out of the east. High pressure will settle southward off the Southeast U.S. coast on Monday, with a ridge axis developing westward across South Georgia and North Florida.

AVIATION. Nothing more than SCT coverage of fair weather cumulus for the next 24 hours. The main impact to aviation will be somewhat variable winds this afternoon. Some guidance shows a few hours of light northwest wind at EYW this afternoon, which would affect flow direction. Otherwise, NE winds will prevail through tonight.

CLIMATE. In 1987, after a high of 65F and low of 56F the previous day (the 1st), the low temperature of 48F at Key West International Airport on the 2nd shattered the cold record for the date. It is the lowest temperature ever recorded in Key West in the month of April (with the next-lowest being 54F in 1891), and the next- latest sub-50F reading ever is 49F on March 04, 1980.

KEY WATCHES/WARNINGS/ADVISORIES. FL . None. GM . None.

Public/Marine/Fire . Haner Aviation/Nowcasts . Haner Data Collection . KBL

Visit us on the web at weather.gov/key

Follow us on Facebook and Twitter at: www.facebook.com/nwskeywest www.twitter.com/nwskeywest


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
42095 13 mi223 min 78°F2 ft
KYWF1 - 8724580 - Key West, FL 17 mi235 min 76°F 1015.4 hPa
GKYF1 40 mi283 min 74°F

Wind History for Key West, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Key West International Airport, FL20 mi50 minESE 1010.00 miA Few Clouds81°F66°F62%1014.3 hPa
Key West Naval Air Station, FL23 mi50 minE 1010.00 miPartly Cloudy83°F66°F59%1014 hPa

Link to 5 minute data for KEYW

Wind History from EYW (wind in knots)
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Last 24hrN14
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NW14NW12NW13NW11NW8NW8NW9NW8N8N8N8NW8N7N5N5N3E6NE5NE55E5E10
1 day agoS8SW7SW8W8W7W8W5W6W7W8W9W10
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2 days agoSE10SE9SE7SE8E9E9E10SE10SE9SE6SE7SE6SE6S7S8S8S8S7S7S9S9S10S9S7

Tide / Current Tables for Sand Key Lighthouse, Sand Key Channel, Florida
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Sand Key Lighthouse
Click for Map
Thu -- 03:10 AM EDT     Moonset
Thu -- 06:00 AM EDT     0.71 feet High Tide
Thu -- 07:17 AM EDT     Sunrise
Thu -- 09:38 AM EDT     0.58 feet Low Tide
Thu -- 02:08 PM EDT     Moonrise
Thu -- 04:20 PM EDT     1.42 feet High Tide
Thu -- 07:44 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.10.10.30.50.60.70.70.70.60.60.60.60.811.21.31.41.41.310.80.40.1-0.1

Tide / Current Tables for Boca Grande Channel, Florida Current
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Boca Grande Channel
Click for Map
Thu -- 02:22 AM EDT     0.94 knots Max Flood
Thu -- 03:11 AM EDT     Moonset
Thu -- 06:37 AM EDT     -0.00 knots Slack
Thu -- 07:18 AM EDT     Sunrise
Thu -- 09:39 AM EDT     -0.76 knots Max Ebb
Thu -- 12:25 PM EDT     0.00 knots Slack
Thu -- 02:09 PM EDT     Moonrise
Thu -- 02:37 PM EDT     0.61 knots Max Flood
Thu -- 05:54 PM EDT     -0.00 knots Slack
Thu -- 07:45 PM EDT     Sunset
Thu -- 09:41 PM EDT     -1.14 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.20.70.90.90.80.60.2-0.2-0.5-0.7-0.7-0.6-0.20.30.60.60.50.3-0-0.4-0.8-1.1-1.1-0.9

Weather Map
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wmap_A
GEOS 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 (14,3,4,5)
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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 numerous 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.