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Marine Weather and Tides
Version 3.4 |
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 6:48AM | Sunset 8:18PM | Friday July 19, 2019 7:45 PM EDT (23:45 UTC) | Moonrise 9:26PM | Moonset 8:04AM | Illumination 91% |  |
GMZ032 Bayside And Gulf Side From Craig Key To West End Of Seven Mile Bridge- Gulf Of Mexico From West End Of Seven Mile Bridge To Halfmoon Shoal Out To 5 Fathoms- 430 Pm Edt Fri Jul 19 2019
Tonight..East to southeast winds 5 to 10 knots, increasing to 10 to 15 knots. Seas 1 foot or less, building to 1 to 2 feet. NEarshore waters smooth to a light chop, becoming a light to moderate chop. Isolated showers and Thunderstorms developing.
Saturday..East winds near 10 knots. Seas around 1 foot. NEarshore waters a light chop. Scattered showers and isolated Thunderstorms.
Saturday night..East winds near 10 knots. Seas around 1 foot. NEarshore waters a light chop. Scattered showers and Thunderstorms.
Sunday..East to southeast winds near 10 knots. Seas around 1 foot. NEarshore waters a light chop. Scattered showers and Thunderstorms.
Sunday night..East to southeast winds near 10 knots. Seas around 1 foot. NEarshore waters a light chop. Scattered showers and Thunderstorms.
Monday..East to southeast winds 5 to 10 knots. Seas 1 foot or less. NEarshore waters smooth to a light chop. Scattered showers and isolated Thunderstorms.
Monday night..East to southeast winds near 5 knots. Seas less than 1 foot. NEarshore waters smooth. Scattered showers and isolated Thunderstorms.
Tuesday and Tuesday night..Southeast winds near 5 knots. Seas less than 1 foot. NEarshore waters smooth. Scattered showers and isolated Thunderstorms.
Wednesday and Wednesday night..South winds near 5 knots. Seas less than 1 foot. NEarshore waters smooth. Scattered showers and isolated Thunderstorms.
Tonight..East to southeast winds 5 to 10 knots, increasing to 10 to 15 knots. Seas 1 foot or less, building to 1 to 2 feet. NEarshore waters smooth to a light chop, becoming a light to moderate chop. Isolated showers and Thunderstorms developing.
Saturday..East winds near 10 knots. Seas around 1 foot. NEarshore waters a light chop. Scattered showers and isolated Thunderstorms.
Saturday night..East winds near 10 knots. Seas around 1 foot. NEarshore waters a light chop. Scattered showers and Thunderstorms.
Sunday..East to southeast winds near 10 knots. Seas around 1 foot. NEarshore waters a light chop. Scattered showers and Thunderstorms.
Sunday night..East to southeast winds near 10 knots. Seas around 1 foot. NEarshore waters a light chop. Scattered showers and Thunderstorms.
Monday..East to southeast winds 5 to 10 knots. Seas 1 foot or less. NEarshore waters smooth to a light chop. Scattered showers and isolated Thunderstorms.
Monday night..East to southeast winds near 5 knots. Seas less than 1 foot. NEarshore waters smooth. Scattered showers and isolated Thunderstorms.
Tuesday and Tuesday night..Southeast winds near 5 knots. Seas less than 1 foot. NEarshore waters smooth. Scattered showers and isolated Thunderstorms.
Wednesday and Wednesday night..South winds near 5 knots. Seas less than 1 foot. NEarshore waters smooth. Scattered showers and isolated Thunderstorms.
7 Day Forecast for Marine Location Near Cudjoe Key, FL
Hourly EDIT Helplocation: 24.64, -81.48 debug
Area Discussion for - Key West, FL
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus62 kkey 191911 afdkey area forecast discussion national weather service key west fl 311 pm edt Fri jul 19 2019 Discussion In the middle and upper levels (700-200 mb), latest available satellite imagery overlaid with model streamline analysis as of 200 pm, depicts the center of expansive deep and warm ridging positioned over the mid-mississippi valley. Well southeast of that feature, a weak middle and upper trough like feature is in place and extends from near 27n 70w southwest to over southern florida and the florida keys and into the gulf of mexico. At the surface and in the lower to middle levels (surface to 700 mb), latest available marine and land surface observations and analysis as of 200 pm, detail the near 1020 mb western extent of 1020-1025 mb surface ridging centered over the central tropical atlantic. Across the tropics, the next inverted trough weak tropical wave was analyzed around 24n 65w. Latest cimms saharan air layer analysis indicated greater concentrations of drier air exists upstream of this feature out to 30w. Currently As of 200 pm, skies are mostly sunny across the florida keys island chain and all surrounding waters. Radar only detects a few small showers moving across the upper and middle florida keys attm, with small isolated showers dotting all waters surrounding the islands. Temperatures across the islands have reached to around 90 degrees with dewpoints in the upper 70s. C-man stations are recording east southeast winds at 5 to 10 knots and sensors over the islands recording 5 to 10 mph. Short term Tonight thru Sunday night, models have been consistent with indications that the combination of upper troughing in tandem with an increase in surface to 700 mb moisture will allow for better chances for showers and thunderstorms beginning tomorrow night. The 12z GFS more clearly delineates a developing yet faint 1000-850 inverted trough axis moving across keys waters tomorrow night and then to the west during Sunday. Challenges still exist to the exact timing of the development of this feature as there is not much from satellite imagery to hang our hats on upstream attm. As for tonight, increasing moisture and a slight uptick in winds should allow near climatology pops, with scattered showers and isolated thunderstorms developing again similar to last night, and continuing until Saturday morning. Forecast soundings indicate southeast to south winds in the afternoon from off the surface up to 500 mb, which could allow for cuban land shadowing which will erode pops by later in the morning. Then by Saturday evening, the increasing moisture arrives with slightly better upper forcing ahead of the inverted trough axis. The axis will move slowly westward during Sunday and Sunday evening. Very deep moisture with pwat in excess of 2.00 inches and ample moisture should allow for high chances for rain for these |
two periods. Have inherited this from the last shift. Winds in association with this trough axis should remain gentle to moderate with moderate on the straits at best, except gusty in and near showers and storms. Daytime highs and lows Saturday night and Sunday will be only a few degrees lower at best due to more extensive cloud cover, but dewpoints will remain typically oppressive. During Sunday evening, ample slow moving boundaries combined with deeper moisture and upper support will continue to support higher chances for showers and storms. Long term Monday through Friday, on Monday, drier air will move in behind the departing trough, with less favorable surface to 500 mb winds. As such, just isolated chances for showers and storms are in place. But then for Monday night thru Wed night, the surface pressure patter become weak as broad surface ridging settles near the keys. Given ample low to middle level moisture, pwat between 1.75 and 2.00 inches from the available model forecast soundings, looks as if mesoscale forcing will be better optimized but the degree of strong seems unclear. As such, will keep normal, near 30 percent chances for showers with isolated storms in the grids. Looking ahead to Thursday and Friday, indications that the leading edge of the sal airmass now out approaching the eastern caribbean, may reach south florida and the florida keys. At this point will still maintain a slight chance for showers and storms for those periods. Marine Winds should once again increase a bit this evening and overnight, reaching 15 knots in the straits, with 10 to 15 knots elsewhere. This may be a bit conservative ATTM as more detail have yet to unfold regarding the evolution of this inverted trough, as mentioned above. At this time no scec or SCA conditions are advertised but please continue to monitor the marine forecast for this weekend as development of this trough could result in more elevated winds. As always, winds and seas will be higher in and near showers and storms. Excellent boating conditions return next week with smooth sea conditions. Aviation Vfr conditions will prevail at both the key west and marathon terminals for this evening and tonight. Near-surface winds will be from the southeast at 5 to 10 knots. Expect few to sct cloud bases around fl025 throughout the overnight period. Preliminary point temps pops Key west 83 91 80 89 20 20 40 50 marathon 83 93 80 91 30 30 40 50 Key watches warnings advisories Fl... None. Gm... None. Public marine fire... Futterman aviation nowcasts... .Bt upper air data collection... ... Dr 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 map| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
| KYWF1 - 8724580 - Key West, FL | 18 mi | 51 min | 91°F | 90°F | 1016.8 hPa | |||
| SMKF1 - Sombrero Key, FL | 20 mi | 15 min | ENE 8.9 G 12 | 85°F | 1016.9 hPa | 77°F | ||
| VCAF1 - 8723970 - Vaca Key, FL | 20 mi | 45 min | 87°F | 90°F | 1017 hPa (-0.3) | |||
| SANF1 - Sand Key, FL | 25 mi | 15 min | E 11 G 13 | 85°F | 1015.6 hPa | 77°F | ||
| LONF1 - Long Key, FL | 36 mi | 15 min | 86°F | 1016.3 hPa | 78°F | |||
| JKYF1 - Johnson Key, FL | 42 mi | 105 min | 89°F | |||||
| LRKF1 - Little Rabbit Key, FL | 42 mi | 165 min | 92°F | |||||
| MUKF1 - Murray Key, FL | 43 mi | 105 min | 88°F | |||||
| PKYF1 - Peterson Key, FL | 43 mi | 105 min | 90°F | |||||
| BKYF1 | 48 mi | 105 min | 94°F | |||||
| WRBF1 - Whipray Basin, FL | 49 mi | 105 min | E 5.1 | 91°F |
Wind History for Key West, FL
(wind in knots) EDIT (on/off) Help| Last 24hr | ||||||||||||||||||||||||
| 1 day ago | ||||||||||||||||||||||||
| 2 days ago |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Key West Naval Air Station, FL | 12 mi | 1.9 hrs | E 6 | 10.00 mi | Partly Cloudy | 90°F | 75°F | 63% | 1016.5 hPa |
| Key West International Airport, FL | 16 mi | 52 min | E 8 | 10.00 mi | A Few Clouds | 88°F | 73°F | 63% | 1016.5 hPa |
| The Florida Keys - Marathon International Airport, FL | 24 mi | 52 min | ENE 7 | 10.00 mi | Fair | 89°F | 73°F | 61% | 1016.8 hPa |
Wind History from NQX (wind in knots)
| 8 PM | 9 PM | 10 PM | 11 PM | 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 | |
| Last 24hr | SE | E | E | E | E | E | E | E | NE | E | E | E | E | SE | E | SE | SE | E | E | SE | SE | E | E | E |
| 1 day ago | E | E | E | E | E | E | SE | E | SE | E | E | SE | SE | SE | SE | SE | SE | SE | SE G15 | E | E | SE | E | SE |
| 2 days ago | E | E | E | E | E | E | E | E | SE | E | E | E | E | SE | E | E | E | E | E | SE | SE | SE | E | SE |
Tide / Current Tables for Gopher Key, Cudjoe Bay, Florida
EDIT Weekend mode (on/off) (on/off) Help One Week of DataGopher Key
Click for Map
Fri -- 05:34 AM EDT 0.34 feet Low Tide
Fri -- 06:47 AM EDT Sunrise
Fri -- 09:04 AM EDT Moonset
Fri -- 11:06 AM EDT 1.74 feet High Tide
Fri -- 06:57 PM EDT -0.02 feet Low Tide
Fri -- 08:16 PM EDT Sunset
Fri -- 10:25 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 05:34 AM EDT 0.34 feet Low Tide
Fri -- 06:47 AM EDT Sunrise
Fri -- 09:04 AM EDT Moonset
Fri -- 11:06 AM EDT 1.74 feet High Tide
Fri -- 06:57 PM EDT -0.02 feet Low Tide
Fri -- 08:16 PM EDT Sunset
Fri -- 10:25 PM EDT Moonrise
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 |
| 1.1 | 1 | 0.8 | 0.6 | 0.5 | 0.4 | 0.4 | 0.6 | 0.9 | 1.3 | 1.6 | 1.7 | 1.7 | 1.5 | 1.2 | 0.9 | 0.5 | 0.2 | 0 | -0 | 0.1 | 0.4 | 0.7 | 1 |
Tide / Current Tables for No Name Key (northeast of), Florida Current
EDIT (on/off) Help One Week of DataNo Name Key (northeast of)
Click for Map
Fri -- 01:52 AM EDT -0.00 knots Slack
Fri -- 04:27 AM EDT -0.86 knots Max Ebb
Fri -- 06:47 AM EDT Sunrise
Fri -- 08:05 AM EDT 0.00 knots Slack
Fri -- 09:03 AM EDT Moonset
Fri -- 10:59 AM EDT 0.55 knots Max Flood
Fri -- 01:35 PM EDT -0.00 knots Slack
Fri -- 04:34 PM EDT -1.06 knots Max Ebb
Fri -- 08:15 PM EDT Sunset
Fri -- 08:16 PM EDT 0.00 knots Slack
Fri -- 10:25 PM EDT Moonrise
Fri -- 11:31 PM EDT 0.75 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 01:52 AM EDT -0.00 knots Slack
Fri -- 04:27 AM EDT -0.86 knots Max Ebb
Fri -- 06:47 AM EDT Sunrise
Fri -- 08:05 AM EDT 0.00 knots Slack
Fri -- 09:03 AM EDT Moonset
Fri -- 10:59 AM EDT 0.55 knots Max Flood
Fri -- 01:35 PM EDT -0.00 knots Slack
Fri -- 04:34 PM EDT -1.06 knots Max Ebb
Fri -- 08:15 PM EDT Sunset
Fri -- 08:16 PM EDT 0.00 knots Slack
Fri -- 10:25 PM EDT Moonrise
Fri -- 11:31 PM EDT 0.75 knots Max Flood
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 |
| 0.7 | 0.4 | -0.1 | -0.6 | -0.8 | -0.8 | -0.6 | -0.4 | -0 | 0.3 | 0.5 | 0.5 | 0.5 | 0.2 | -0.2 | -0.7 | -1 | -1 | -0.8 | -0.5 | -0.1 | 0.3 | 0.6 | 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 (19,4,5,8)
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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. |