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Marine Weather and Tides
Version 3.4 |
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. 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 7:19AM | Sunset 6:55PM | Wednesday October 16, 2019 7:48 AM EDT (11:48 UTC) | Moonrise 8:01PM | Moonset 8:38AM | Illumination 92% |  |
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- 425 Am Edt Wed Oct 16 2019
Today..Southeast to south winds 5 to 10 knots, becoming south to southwest. Seas around 1 foot. NEarshore waters smooth to a light chop. Isolated showers.
Tonight..Variable winds 5 to 10 knots. Seas 1 foot or less. NEarshore waters smooth to a light chop. Isolated showers.
Thursday..Variable winds near 5 knots. Seas less than 1 foot. NEarshore waters smooth. Isolated showers.
Thursday night..Variable winds 5 to 10 knots. Seas 1 foot or less. NEarshore waters smooth to a light chop. Isolated showers.
Friday..East to southeast winds increasing to near 10 knots. Seas building to 1 to 2 feet. NEarshore waters becoming a light chop. Isolated showers.
Friday night..East to southeast winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. Scattered showers and isolated Thunderstorms.
Saturday..Southeast winds 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters a light to moderate chop. Scattered showers and isolated Thunderstorms.
Saturday night..Southeast winds near 15 knots. Seas 2 to 3 feet. NEarshore waters a moderate chop. Scattered showers and isolated Thunderstorms.
Sunday and 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..Southeast to south winds 5 to 10 knots, becoming south to southwest. Seas around 1 foot. NEarshore waters smooth to a light chop. Isolated showers.
Tonight..Variable winds 5 to 10 knots. Seas 1 foot or less. NEarshore waters smooth to a light chop. Isolated showers.
Thursday..Variable winds near 5 knots. Seas less than 1 foot. NEarshore waters smooth. Isolated showers.
Thursday night..Variable winds 5 to 10 knots. Seas 1 foot or less. NEarshore waters smooth to a light chop. Isolated showers.
Friday..East to southeast winds increasing to near 10 knots. Seas building to 1 to 2 feet. NEarshore waters becoming a light chop. Isolated showers.
Friday night..East to southeast winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. Scattered showers and isolated Thunderstorms.
Saturday..Southeast winds 10 to 15 knots. Seas 1 to 3 feet. NEarshore waters a light to moderate chop. Scattered showers and isolated Thunderstorms.
Saturday night..Southeast winds near 15 knots. Seas 2 to 3 feet. NEarshore waters a moderate chop. Scattered showers and isolated Thunderstorms.
Sunday and 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 161129 afdmfl area forecast discussion national weather service miami fl 729 am edt Wed oct 16 2019 Aviation GenerallyVFR conditions are expected through the period, although some fog may be possible across the interior areas for a few hours this morning and again early tomorrow morning. Winds become sw today as a front approaches the region. Prev discussion issued 301 am edt Wed oct 16 2019 short term... today through Thursday night... Wednesday is a day of transition as surface high pressure gives way to an approaching cold front. Ahead of the front, the wind will back from the southeast to the south and eventually become southwesterly later today. Increasing moisture today will allow for an increase in shower activity, and a non-zero chance of thunderstorms, this afternoon. The focus for convection will be along the atlantic coast, where the southwesterly flow will pin any attempt at the east coast sea breeze. Warm temperatures in the lower 90s could again flirt with records if temperatures were to be a few degrees warmer than forecast today. Diurnally driven convection should diminish after sunset but the increasing surface moisture will lead to the potential of fog on Wednesday night into Thursday morning. With the front remaining around or just north of the region, additional gulf moisture surges on Thursday could lead to increased shower and thunderstorm coverage over a good portion of the day. Peak convective activity is still expected in the late morning into the evening hours. Maximum temperatures will be in the upper 80s to lower 90s on Thursday, which should be a few degrees cooler in most areas compared to Wednesday. The threat of fog returns for Thursday night Friday morning as sufficient surface moisture, light wind flow, and drier air aloft could once again provide for efficient radiational cooling. Long term... Friday through Wednesday... the aforementioned frontal boundary will sag southward over south florida Friday before stalling just north of the florida keys as ridging aloft elongates east to west and tightens. By Saturday, this boundary lifts back north as a warm front, keeping southerly to southwesterly wind flow and ample moisture across the region. A couple of weak impulses meandering through the zonal flow will swiftly cross the CWA over the course of the weekend. This in combination with increasing moisture will keep scattered to numerous showers with isolated thunderstorms in the forecast throughout the weekend. There are a few things to note with the forecast this weekend... 1. With a prevailing S flow, if the east coast sea breeze does develop, then it will likely get pinned across the east coast. This means that localized flooding will be possible, especially with heavy rainfall rates, previous rainfall, and widespread coverage. 2. GFS is suggesting storm relative helicity (srh) values creep |
towards 300 m2 s2 Saturday afternoon. With additional areas of localized convergence and lift, ie boundary collisions, wouldn't be surprised for brief bouts of weak rotation. 3. Forecast derived pw's will also be on the rise due to the shortwaves passing through and the S SW flow. Forecast soundings represent a sufficiently moist profile further indicating the potential for heavy rainfall and localized flooding. Now, a lot of this is dependent on a rather energetic low pressure system and its development track across the gulf of mexico. The gfs and ECMWF continue to disagree on both intensity of the system and path. The GFS takes the low toward the florida panhandle late weekend while the ECMWF weakens the low and takes it toward the gulf coast states. If the GFS solution prevails, then the forecast will be a lot soggier this weekend as opposed to the ecmwf. As of 0200 am edt, the national hurricane center (nhc) is giving the low pressure a 40 percent chance of formation in the next 5 days. By early next week, a brief drying trend looks to occur across the region, however by mid-week, a cold front tries to cut through the state and pops once again increase. Marine... predominantly easterly winds will shift from the south throughout the day today with speeds of around 10 to 15 kt. By Friday, winds look to be light and variable due to a stationary frontal boundary though this is short lived and winds are forecast to pick back up from the SE at 10 to 15 kt Saturday before shifting from the s Sunday. Lingering NE swells of 1 foot or less in the atlantic waters offshore palm beach county today before subsiding overnight. By this weekend, a low pressure system in the gulf will deliver higher seas of 4 to 6 feet and a W SW swell of 1 to 2 feet in the gulf waters. Both seas and swells diminish throughout the beginning of next week. Increasing shower and thunderstorm chances over the local waters especially late this week. Beach forecast... a coastal flood statement is in effect for the east coast today for possible flooding during times of high tide. With a decrease in northeasterly swell, the threat for rip currents decreased, though a slight risk for rip currents is possible for all south florida beaches today. As winds shift from the south southwest towards the end of the work week, the threat for rip currents along the east coast beaches should stay on the slight end though may increase for the gulf coast beaches. Preliminary point temps pops West palm beach 90 74 88 74 20 20 50 20 fort lauderdale 89 76 88 76 20 10 50 20 miami 89 76 89 75 20 10 40 10 naples 88 76 87 73 20 20 30 10 Mfl watches warnings advisories Fl... None. Am... None. Gm... None. Aviation... 32 mm |
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| 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 | 7 AM | |
| Last 24hr | E | E | E G10 | E G10 | SE G12 | E G11 | E G13 | E G10 | E G9 | E G10 | E G8 | E G10 | E | E | SE G8 | E G8 | SE G9 | SE G8 | SE G8 | SE G6 | SE G6 | -- | S | S |
| 1 day ago | E | SE G8 | E G10 | E G11 | E G13 | E G12 | E G12 | SE G13 | SE G13 | SE G13 | SE G11 | E G11 | E G13 | E G12 | E G12 | E G11 | E G11 | E | E | E G8 | E | E | E | E |
| 2 days ago | SE G5 | E G16 | E G9 | SE G11 | SE G13 | SE G13 | E G12 | E G12 | SE G11 | E G13 | E G13 | E G11 | SE G12 | SE G9 | E G13 | E G9 | E G8 | SE G11 | SE G10 | SE G11 | SE G10 | SE G8 | E | E G7 |
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 | 33 mi | 55 min | SE 3 | 10.00 mi | A Few Clouds | 81°F | 75°F | 85% | 1014.1 hPa |
Link to 5 minute data for KMTH
Wind History from MTH (wind in knots)
| 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 | 7 AM | |
| Last 24hr | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | SE | SE | SE | SE | SE | ||
| 1 day ago | E | E | E | E | E | E | E | SE | E G15 | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E |
| 2 days ago | E G18 | SE | SE | E | E G15 | E G14 | E | E | E | E | E | SE G15 | SE | E | E | E | E | SE G14 | SE | SE | E | 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 -- 05:05 AM EDT 0.24 feet Low Tide
Wed -- 07:20 AM EDT Sunrise
Wed -- 09:38 AM EDT Moonset
Wed -- 11:18 AM EDT 1.75 feet High Tide
Wed -- 05:32 PM EDT 0.43 feet Low Tide
Wed -- 06:54 PM EDT Sunset
Wed -- 09:00 PM EDT Moonrise
Wed -- 11:20 PM EDT 1.63 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 05:05 AM EDT 0.24 feet Low Tide
Wed -- 07:20 AM EDT Sunrise
Wed -- 09:38 AM EDT Moonset
Wed -- 11:18 AM EDT 1.75 feet High Tide
Wed -- 05:32 PM EDT 0.43 feet Low Tide
Wed -- 06:54 PM EDT Sunset
Wed -- 09:00 PM EDT Moonrise
Wed -- 11:20 PM EDT 1.63 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 |
| 1.5 | 1.3 | 0.9 | 0.6 | 0.3 | 0.2 | 0.3 | 0.6 | 0.9 | 1.3 | 1.6 | 1.7 | 1.7 | 1.5 | 1.2 | 0.9 | 0.6 | 0.5 | 0.4 | 0.6 | 0.9 | 1.2 | 1.5 | 1.6 |
Tide / Current Tables for Long Key, east of drawbridge, Florida Current
EDIT (on/off) Help One Week of DataLong Key
Click for Map
Wed -- 01:23 AM EDT -0.00 knots Slack
Wed -- 04:34 AM EDT -1.51 knots Max Ebb
Wed -- 07:21 AM EDT Sunrise
Wed -- 07:47 AM EDT 0.00 knots Slack
Wed -- 09:39 AM EDT Moonset
Wed -- 10:47 AM EDT 1.43 knots Max Flood
Wed -- 02:20 PM EDT -0.00 knots Slack
Wed -- 05:07 PM EDT -1.27 knots Max Ebb
Wed -- 06:55 PM EDT Sunset
Wed -- 08:19 PM EDT 0.00 knots Slack
Wed -- 09:01 PM EDT Moonrise
Wed -- 10:54 PM EDT 1.00 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 01:23 AM EDT -0.00 knots Slack
Wed -- 04:34 AM EDT -1.51 knots Max Ebb
Wed -- 07:21 AM EDT Sunrise
Wed -- 07:47 AM EDT 0.00 knots Slack
Wed -- 09:39 AM EDT Moonset
Wed -- 10:47 AM EDT 1.43 knots Max Flood
Wed -- 02:20 PM EDT -0.00 knots Slack
Wed -- 05:07 PM EDT -1.27 knots Max Ebb
Wed -- 06:55 PM EDT Sunset
Wed -- 08:19 PM EDT 0.00 knots Slack
Wed -- 09:01 PM EDT Moonrise
Wed -- 10:54 PM EDT 1.00 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 | 0.2 | -0.4 | -1 | -1.4 | -1.5 | -1.1 | -0.6 | 0.1 | 0.8 | 1.3 | 1.4 | 1.2 | 0.8 | 0.2 | -0.4 | -1 | -1.3 | -1.1 | -0.7 | -0.2 | 0.4 | 0.9 | 1 |
Weather Map
(on/off) Help Weather Map
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 Miami-South Florida, FL (7,2,3,4)
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Ground Weather Radar Station Miami, FL
(on/off) Help
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. |