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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 6:40AM | Sunset 8:15PM | Wednesday July 17, 2019 6:35 AM EDT (10:35 UTC) | Moonrise 8:03PM | Moonset 6:14AM | Illumination 100% |  |
GMZ042 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- 432 Am Edt Wed Jul 17 2019
Today..East winds 10 to 15 knots, decreasing to near 10 knots. Seas 1 to 3 feet, subsiding to 1 to 2 feet. NEarshore waters a light to moderate chop, becoming a light chop. Isolated showers and Thunderstorms.
Tonight..East winds increasing to 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters becoming a light to moderate chop. Scattered showers and isolated Thunderstorms.
Thursday..East winds 10 to 15 knots, decreasing to near 10 knots. Seas 1 to 3 feet, subsiding to 1 to 2 feet. NEarshore waters a light to moderate chop, becoming a light chop. Scattered showers and isolated Thunderstorms.
Thursday night..East winds 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters a light to moderate chop. Isolated showers and Thunderstorms.
Friday..East winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. Isolated showers and Thunderstorms.
Friday night..East to southeast winds 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters a light to moderate chop. Isolated showers and Thunderstorms.
Saturday..East winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. Isolated showers and Thunderstorms.
Saturday night and Sunday..East to southeast winds 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters a light to moderate chop.
Sunday night..East to southeast winds 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters a light to moderate chop. Isolated showers and Thunderstorms.
Today..East winds 10 to 15 knots, decreasing to near 10 knots. Seas 1 to 3 feet, subsiding to 1 to 2 feet. NEarshore waters a light to moderate chop, becoming a light chop. Isolated showers and Thunderstorms.
Tonight..East winds increasing to 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters becoming a light to moderate chop. Scattered showers and isolated Thunderstorms.
Thursday..East winds 10 to 15 knots, decreasing to near 10 knots. Seas 1 to 3 feet, subsiding to 1 to 2 feet. NEarshore waters a light to moderate chop, becoming a light chop. Scattered showers and isolated Thunderstorms.
Thursday night..East winds 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters a light to moderate chop. Isolated showers and Thunderstorms.
Friday..East winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. Isolated showers and Thunderstorms.
Friday night..East to southeast winds 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters a light to moderate chop. Isolated showers and Thunderstorms.
Saturday..East winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. Isolated showers and Thunderstorms.
Saturday night and Sunday..East to southeast winds 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters a light to moderate chop.
Sunday night..East to southeast winds 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters a light to moderate chop. Isolated showers and Thunderstorms.
7 Day Forecast for Marine Location Near "Islamorada, Village of Islands ", FL
Hourly EDIT Helplocation: 25, -80.53 debug
Area Discussion for - Miami-South Florida, FL
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus62 kmfl 170754 afdmfl area forecast discussion national weather service miami fl 354 am edt Wed jul 17 2019 Discussion Short term (today through Friday): the local weather pattern continues to be dominated by subtropical high pressure at all levels, most notably at the mid-levels where a 5950 meter center at 500 mb currently over north florida remains in place through today and a low level ridge axis across central florida keeping an E se wind flow in place. Relatively minor, but notable, day-to-day differences in precipitation coverage location will depend largely on embedded small-scale features in the prevailing E SE flow which are discussed below. Today: slightly drier air seen in last evening's 00z sounding from nassau, as well as in GOES total precipitable water (tpw) data, will move over south florida and lead to only isolated, small showers early this morning. Some increase in showers (and possibly a thunderstorm) is expected shortly after sunrise especially in the palm beaches where deeper moisture resides. As has been the case the past few days, showers and thunderstorms will then develop during the late morning midday hours and increase in coverage from inland palm beach county and the lake okeechobee area westward to collier county and the gulf coast as the afternoon progresses and the gulf seabreeze pushes inland and further focuses convective development. Strong wind gusts, frequent lightning, and torrential rainfall can be expected with the most vigorous convection over the western half of south florida this afternoon into the early evening hours. Higher 1000-850 mb thicknesses over the interior and western areas today will translate to another day with highs in the mid 90s over the interior and even close to the gulf coast, possibly reaching the upper 90s in a few spots in eastern collier county. East coast metro areas should hit the lower 90s except near 90 at the beaches. Heat index values will have to be watched closely over the interior, especially eastern collier county, where they could flirt with advisory levels (108f for at least 2 hours). Tonight and Thursday: a small mid-level trough currently north of the western bahamas will move over south florida late tonight and early Thursday, enhancing coverage of showers and thunderstorms over the east coast metro areas and possibly cause this afternoon's interior gulf coast convection to linger well into the night. As the trough moves west across the peninsula on Thursday, convection should be further enhanced over the interior and gulf coast Thursday afternoon and evening. Once again, strong wind gusts, frequent lightning, and torrential rainfall can be expected with the most vigorous convection over the western half of south florida. Little change in temperatures, with lows ranging from the mid 70s interior to lower 80s east coast, and highs up in the 90s all areas. Heat index values will once again approach advisory levels over the everglades and big cypress preserve. |
Thursday night and Friday: the center of the 500 mb high shifts to the eastern u.S. And western atlantic. Drier air is depicted by the gfs to move over the region late Thursday night and Friday, however this could be countered by the influence of the northern end of a weak tropical wave currently near puerto rico which may come close enough to south florida on Friday. The end result is expected to be a slight decrease in the coverage of showers thunderstorms favoring the east coast in the night, morning and midday time frames and interior gulf coast in the afternoon, but not appreciably so. Little change in temperatures from today and Thursday. Long term (this weekend into early next week): the deep SE wind flow continues around the south side of the large mid-level high over the eastern u.S. On Saturday and Sunday, with not much change in the precipitation timing and coverage from the previous days. Models have been consistent in showing a change in the large scale weather pattern by Monday as the western atlantic subtropical ridge breaks down in response to a large mid-level trough is depicted to sweep into the eastern u.S., and a strong high pressure builds over the intermountain west. At the same time, a tropical wave currently over the central tropical atlantic near 50w may get close enough to south florida to influence our weather. The GFS is faster is showing the possible effects of the wave on Monday, while the ECMWF is slower and farther east. For now will not increase pops as much as some of the model guidance is indicating as we're still 5-6 days out, but if trends continue then rain chances could increase further early next week. Marine The main threat continues to be periods of showers and thunderstorms, more numerous over the gulf of mexico waters each afternoon and evening, but also increasing over the atlantic waters tonight and early Thursday. This same general pattern of timing of showers and thunderstorms will persist through the weekend. Otherwise, winds generally E SE 10 knots, with periods of near 15 knots during the night and early morning over the atlantic. Seas generally 3 feet or less, except higher in and near showers and storms. Beach forecast A slight risk of rip currents will continue into the upcoming weekend at the atlantic beaches with the continued light E se wind. Preliminary point temps pops West palm beach 92 81 92 80 30 30 30 20 fort lauderdale 91 81 91 81 10 30 30 20 miami 92 81 92 81 10 30 30 20 naples 93 77 93 77 50 30 60 20 Mfl watches warnings advisories Fl... None. Am... None. Gm... None. 59 molleda |
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 | ||||||||||||||||||||||||
| 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 |
| The Florida Keys - Marathon International Airport, FL | 33 mi | 43 min | E 6 | 10.00 mi | A Few Clouds | 84°F | 73°F | 72% | 1017.9 hPa |
Wind History from MTH (wind in knots)
| 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 | 5 AM | 6 AM | |
| Last 24hr | SE G14 | SE | SE | SE | SE | E | SE | SE | SE | SE | SE | E | E | E | E | E | E | E | E | E | E | E | E | E |
| 1 day ago | E | E | E | E G16 | E | E G14 | E G15 | E | E | E | SE | E | E | E | E | E | E | E | E | E | E | E | SE | |
| 2 days ago | E G16 | E G15 | E G16 | E | E G14 | E G15 | E | E G17 | E G15 | E G17 | E | E | E | E G14 | E | E | E | E | E | E | E | E G18 | E | E |
Tide / Current Tables for Tavernier Creek, Hwy. 1 bridge, Hawk Channel, Florida
EDIT Weekend mode (on/off) (on/off) Help One Week of DataTavernier Creek
Click for Map
Wed -- 04:14 AM EDT 0.10 feet Low Tide
Wed -- 06:42 AM EDT Sunrise
Wed -- 07:14 AM EDT Moonset
Wed -- 10:01 AM EDT 1.29 feet High Tide
Wed -- 04:23 PM EDT -0.10 feet Low Tide
Wed -- 08:13 PM EDT Sunset
Wed -- 09:02 PM EDT Moonrise
Wed -- 10:38 PM EDT 1.41 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 04:14 AM EDT 0.10 feet Low Tide
Wed -- 06:42 AM EDT Sunrise
Wed -- 07:14 AM EDT Moonset
Wed -- 10:01 AM EDT 1.29 feet High Tide
Wed -- 04:23 PM EDT -0.10 feet Low Tide
Wed -- 08:13 PM EDT Sunset
Wed -- 09:02 PM EDT Moonrise
Wed -- 10:38 PM EDT 1.41 feet High Tide
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 | 0.8 | 0.5 | 0.2 | 0.1 | 0.1 | 0.3 | 0.6 | 1 | 1.2 | 1.3 | 1.2 | 1 | 0.7 | 0.3 | 0.1 | -0.1 | -0.1 | 0.1 | 0.5 | 0.8 | 1.2 | 1.4 | 1.4 |
Tide / Current Tables for Long Key, east of drawbridge, Florida Current
EDIT (on/off) Help One Week of DataLong Key
Click for Map
Wed -- 01:14 AM EDT -0.00 knots Slack
Wed -- 04:01 AM EDT -1.10 knots Max Ebb
Wed -- 06:43 AM EDT Sunrise
Wed -- 07:04 AM EDT 0.00 knots Slack
Wed -- 07:15 AM EDT Moonset
Wed -- 09:53 AM EDT 0.90 knots Max Flood
Wed -- 12:42 PM EDT -0.00 knots Slack
Wed -- 03:53 PM EDT -1.48 knots Max Ebb
Wed -- 07:17 PM EDT 0.00 knots Slack
Wed -- 08:14 PM EDT Sunset
Wed -- 09:03 PM EDT Moonrise
Wed -- 10:32 PM EDT 1.33 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 01:14 AM EDT -0.00 knots Slack
Wed -- 04:01 AM EDT -1.10 knots Max Ebb
Wed -- 06:43 AM EDT Sunrise
Wed -- 07:04 AM EDT 0.00 knots Slack
Wed -- 07:15 AM EDT Moonset
Wed -- 09:53 AM EDT 0.90 knots Max Flood
Wed -- 12:42 PM EDT -0.00 knots Slack
Wed -- 03:53 PM EDT -1.48 knots Max Ebb
Wed -- 07:17 PM EDT 0.00 knots Slack
Wed -- 08:14 PM EDT Sunset
Wed -- 09:03 PM EDT Moonrise
Wed -- 10:32 PM EDT 1.33 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 |
| 0.8 | 0.2 | -0.5 | -1 | -1.1 | -1 | -0.6 | -0 | 0.5 | 0.8 | 0.9 | 0.8 | 0.4 | -0.2 | -0.9 | -1.3 | -1.5 | -1.3 | -0.9 | -0.2 | 0.5 | 1 | 1.3 | 1.3 |
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 Miami-South Florida, 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. |