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Marine Weather and Tides
Version 3.4 |
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports. 6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen |
| Sunrise 6:58AM | Sunset 7:49PM | Sunday August 25, 2019 6:59 AM EDT (10:59 UTC) | Moonrise 12:53AM | Moonset 2:46PM | Illumination 26% |  |
GMZ031 Florida Bay Including Barnes Sound, Blackwater Sound, And Buttonwood Sound- 431 Am Edt Sun Aug 25 2019
Today..South to southwest winds near 10 knots, increasing to 10 to 15 knots. Bay waters a light chop, becoming a light to moderate chop. Scattered showers and isolated Thunderstorms.
Tonight..South to southwest winds decreasing to near 10 knots. Bay waters becoming a light chop. Scattered showers and isolated Thunderstorms, mainly before midnight.
Monday..Southwest winds near 10 knots. Bay waters a light chop. Isolated showers and Thunderstorms.
Monday night..Southwest winds decreasing to 5 to 10 knots. Bay waters becoming smooth to a light chop. Isolated showers and Thunderstorms.
Tuesday..Southwest to west winds 5 to 10 knots. Bay waters smooth to a light chop. Isolated showers and Thunderstorms.
Tuesday night..West to northwest winds near 5 knots. Bay waters smooth. Isolated showers and Thunderstorms.
Wednesday through Thursday..West to northwest winds 5 to 10 knots. Bay waters smooth to a light chop. Scattered showers and isolated Thunderstorms.
Thursday night..Variable winds near 5 knots. Bay waters smooth. Scattered showers and isolated Thunderstorms.
Today..South to southwest winds near 10 knots, increasing to 10 to 15 knots. Bay waters a light chop, becoming a light to moderate chop. Scattered showers and isolated Thunderstorms.
Tonight..South to southwest winds decreasing to near 10 knots. Bay waters becoming a light chop. Scattered showers and isolated Thunderstorms, mainly before midnight.
Monday..Southwest winds near 10 knots. Bay waters a light chop. Isolated showers and Thunderstorms.
Monday night..Southwest winds decreasing to 5 to 10 knots. Bay waters becoming smooth to a light chop. Isolated showers and Thunderstorms.
Tuesday..Southwest to west winds 5 to 10 knots. Bay waters smooth to a light chop. Isolated showers and Thunderstorms.
Tuesday night..West to northwest winds near 5 knots. Bay waters smooth. Isolated showers and Thunderstorms.
Wednesday through Thursday..West to northwest winds 5 to 10 knots. Bay waters smooth to a light chop. Scattered showers and isolated Thunderstorms.
Thursday night..Variable winds near 5 knots. Bay waters smooth. Scattered showers and isolated Thunderstorms.
7 Day Forecast for Marine Location Near Layton, FL
Hourly EDIT Helplocation: 24.8, -80.65 debug
Area Discussion for - Key West, FL
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus62 kkey 250840 afdkey area forecast discussion national weather service key west fl 440 am edt Sun aug 25 2019 Discussion Currently Under partly cloudy skies and a steady, albeit light south to southwest wind near 10 mph, temperatures are hovering in the lower 80s along the island chain. Meanwhile, local radars are detecting scattered showers and isolated thunderstorms on the nearshore waters north of the island chain, as well as on the waters in and around dry tortugas and southward for 60 nm. Elsewhere, isolated showers are been seen south of the florida keys. On our marine district, winds are south to southwest ranging from 4 knots at smith shoal light to 14 knots at alligator reef light. Short term (today through Tuesday night) a broad area of low pressure extending from the south central florida and into the extreme southeast gulf of mexico today will lift out toward the northeast by tonight. Thereafter, a lengthy western atlantic high pressure cell aligned across the island of cuba will lift northward and meander between south florida and our region Monday through at least Tuesday night. But until then, plenty of moisture, weak low level confluence and a fairly favorable low level wind profile should once again allow wet cloud line genesis. With that, above normal chance pops will be retained for today. For tonight, a south to southwest steering flow of 10 to 13 knots may allow cells outflow boundaries to migrate off the archipelago of cuba, and at least approach our area early tonight. Thereafter, large scale subsidence associated with drier air should dominate our sensible weather elements beginning Monday. With that, low chance pops will be kept early tonight, with isolated 10 to perhaps 20 percent pops for the balance of this forecast cycle. Long term (Wednesday through Saturday) the aforementioned (2nd paragraph) high pressure system is expected to retrograde westward, as a lengthy tropical upper |
tropospheric trough (tutt) migrates westward and approaches our region by the end of this week and early next weekend. Given an increase in moisture and instability, chance pops will be kept during this time frame. Marine On the nearshore and offshore waters surrounding the upper keys, mainly gentle to occasional south to southwest winds can be expected today, elsewhere, mainly light to gentle winds will prevail. For tonight, south to southwest winds of 10 knots or less are anticipated. For the upcoming week, mainly west to northwest winds of 10 knots or less should predominate, before becoming variable and then southeast by end of this week. Aviation Convection has redeveloped during the late night hours along lingering boundaries around the florida keys, and this activity may directly impact either terminal with sub-vfr conditions during the predawn and early morning hours. Later today, an island cloud line may develop, but predicted SW low level flow should displace it slightly north of the island chain, and therefore have included only vcsh for both terminals, withVFR conditions prevailing. Climate In 2012, the daily record low temperature of 72 degrees was last recorded in key west. Temperature records date back to 1872. Preliminary point temps pops Key west 92 83 92 83 40 30 20 20 marathon 93 83 93 83 40 30 20 20 Key watches warnings advisories Fl... None. Gm... None. Public marine fire... Apa aviation nowcasts... .Jacobson visit us on the web at weather.Gov key follow us on facebook and twitter at: |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a mapWind History for Vaca Key, FL
(wind in knots) EDIT (on/off) Help| Last 24hr | ||||||||||||||||||||||||
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| 2 days ago |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| The Florida Keys - Marathon International Airport, FL | 22 mi | 3.1 hrs | SSW 7 | 10.00 mi | Thunderstorm in Vicinity | 85°F | 77°F | 77% | 1012.7 hPa |
Link to 5 minute data for KMTH
Wind History from MTH (wind in knots)
| 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | |
| Last 24hr | S | SW | SW | W | SW | SW | S | W G14 | W | W | NW | SE | SW | Calm | S | SW | SW | SW | SW | |||||
| 1 day ago | N | N | N | N | N | N | N | W | NW | NW | E | NW | W | W | SW | |||||||||
| 2 days ago | Calm | N | N | NW | NE | NE | NE |
Tide / Current Tables for Alligator Reef, Hawk Channel, Florida
EDIT Weekend mode (on/off) (on/off) Help One Week of DataTide / Current data from XTide NOT FOR NAVIGATION
Tide / Current Tables for Long Key, east of drawbridge, Florida Current
EDIT (on/off) Help One Week of DataLong Key
Click for Map
Sun -- 01:53 AM EDT Moonrise
Sun -- 02:04 AM EDT 0.00 knots Slack
Sun -- 04:30 AM EDT 0.57 knots Max Flood
Sun -- 07:01 AM EDT Sunrise
Sun -- 07:33 AM EDT -0.00 knots Slack
Sun -- 10:58 AM EDT -1.20 knots Max Ebb
Sun -- 02:31 PM EDT 0.00 knots Slack
Sun -- 03:46 PM EDT Moonset
Sun -- 05:52 PM EDT 1.08 knots Max Flood
Sun -- 07:48 PM EDT Sunset
Sun -- 09:22 PM EDT -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sun -- 01:53 AM EDT Moonrise
Sun -- 02:04 AM EDT 0.00 knots Slack
Sun -- 04:30 AM EDT 0.57 knots Max Flood
Sun -- 07:01 AM EDT Sunrise
Sun -- 07:33 AM EDT -0.00 knots Slack
Sun -- 10:58 AM EDT -1.20 knots Max Ebb
Sun -- 02:31 PM EDT 0.00 knots Slack
Sun -- 03:46 PM EDT Moonset
Sun -- 05:52 PM EDT 1.08 knots Max Flood
Sun -- 07:48 PM EDT Sunset
Sun -- 09:22 PM EDT -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
| 12 am | 1 am | 2 am | 3 am | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 pm | 1 pm | 2 pm | 3 pm | 4 pm | 5 pm | 6 pm | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
| -0.6 | -0.4 | -0 | 0.3 | 0.5 | 0.5 | 0.4 | 0.2 | -0.2 | -0.7 | -1.1 | -1.2 | -1.1 | -0.8 | -0.3 | 0.3 | 0.8 | 1 | 1.1 | 1 | 0.7 | 0.2 | -0.3 | -0.7 |
Weather Map and Satellite Images
(on/off) HelpWeather Map
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 (6,6,7,8)
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Ground Weather Radar Station Miami, 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. |