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Marine Weather and Tides
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7/21/2018 Trying to make page Mobile Friendly |
| Sunrise 7:01AM | Sunset 8:00PM | Tuesday August 21, 2018 8:19 AM EDT (12:19 UTC) | Moonrise 3:49PM | Moonset 1:53AM | Illumination 76% |  |
GMZ856 Coastal Waters From Bonita Beach To Englewood Fl Out 20 Nm- 452 Am Edt Tue Aug 21 2018
Today..Southeast winds 5 to 10 knots then becoming southwest around 10 knots late in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop. Isolated Thunderstorms.
Tonight..West winds around 10 knots then becoming northeast around 5 knots after midnight. Seas 2 feet or less. Bay and inland waters a light chop. Isolated Thunderstorms after midnight.
Wednesday..East winds around 5 knots then becoming southeast around 5 knots late in the morning, then becoming west around 10 knots in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop. Isolated Thunderstorms.
Wednesday night..West winds around 10 knots diminishing to around 5 knots after midnight. Seas 2 feet or less. Bay and inland waters a light chop. Isolated Thunderstorms after midnight.
Thursday..Southwest winds around 5 knots increasing to around 10 knots late in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop. Isolated Thunderstorms.
Thursday night..West winds around 10 knots then becoming south around 5 knots toward morning. Seas 2 feet or less. Bay and inland waters a light chop. Isolated Thunderstorms.
Friday..Southeast winds around 5 knots then becoming south in the afternoon. Seas 2 feet or less. Bay and inland waters smooth. Isolated Thunderstorms in the morning, then scattered Thunderstorms in the afternoon.
Friday night..Northeast winds around 5 knots then becoming east around 10 knots after midnight. Seas 2 feet or less. Bay and inland waters a light chop. Scattered Thunderstorms.
Saturday..Southeast winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop. Numerous Thunderstorms.
Today..Southeast winds 5 to 10 knots then becoming southwest around 10 knots late in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop. Isolated Thunderstorms.
Tonight..West winds around 10 knots then becoming northeast around 5 knots after midnight. Seas 2 feet or less. Bay and inland waters a light chop. Isolated Thunderstorms after midnight.
Wednesday..East winds around 5 knots then becoming southeast around 5 knots late in the morning, then becoming west around 10 knots in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop. Isolated Thunderstorms.
Wednesday night..West winds around 10 knots diminishing to around 5 knots after midnight. Seas 2 feet or less. Bay and inland waters a light chop. Isolated Thunderstorms after midnight.
Thursday..Southwest winds around 5 knots increasing to around 10 knots late in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop. Isolated Thunderstorms.
Thursday night..West winds around 10 knots then becoming south around 5 knots toward morning. Seas 2 feet or less. Bay and inland waters a light chop. Isolated Thunderstorms.
Friday..Southeast winds around 5 knots then becoming south in the afternoon. Seas 2 feet or less. Bay and inland waters smooth. Isolated Thunderstorms in the morning, then scattered Thunderstorms in the afternoon.
Friday night..Northeast winds around 5 knots then becoming east around 10 knots after midnight. Seas 2 feet or less. Bay and inland waters a light chop. Scattered Thunderstorms.
Saturday..Southeast winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop. Numerous Thunderstorms.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 452 Am Edt Tue Aug 21 2018
Synopsis.. High pressure continues to reside over the eastern gulf of mexico today, keeping winds and seas (outside of scattered Thunderstorms) low. A weak cold front will approach the region from the north tonight and then stall over the northeast gulf Wednesday. This front will act to shift winds to a more predominant west to southwest direction, and will likely bring an enhancement to the coverage of showers and storms, especially to the north of tarpon springs. The front will decay during the later part of the week, allowing a very weak gradient, and resulting light winds to again develop over the eastern gulf of mexico.
Synopsis.. High pressure continues to reside over the eastern gulf of mexico today, keeping winds and seas (outside of scattered Thunderstorms) low. A weak cold front will approach the region from the north tonight and then stall over the northeast gulf Wednesday. This front will act to shift winds to a more predominant west to southwest direction, and will likely bring an enhancement to the coverage of showers and storms, especially to the north of tarpon springs. The front will decay during the later part of the week, allowing a very weak gradient, and resulting light winds to again develop over the eastern gulf of mexico.
7 Day Forecast for Marine Location Near Pineland, FL
Hourly EDIT Helplocation: 26.7, -82.32 debug
Area Discussion for - Tampa Bay, FL
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus62 ktbw 211121 afdtbw area forecast discussion national weather service tampa bay ruskin fl 721 am edt Tue aug 21 2018 Aviation Vfr conditions are expected to prevail outside of any thunderstorms. Light and variable winds this morning will shift onshore near the coast early this afternoon with the sea breeze. Scattered showers and thunderstorms are expected through the afternon and evening, with activity generally shifting inland through the day. Storms will dissipate within a few hours of sunset, with dryVFR conditions overnight. Prev discussion issued 412 am edt Tue aug 21 2018 synopsis... 08z water vapor and h4 rap analysis continues to show a rather ill- defined middle and upper level pattern in place over florida this morning. 21 00z ktbw sounding profile measured a pw value of just over 2", with remain in the vicinity of climo for the time of year. Goes16 multi-layer WV imagery also shows no significant area of above or below normal moisture over the region. The last of the convective high level debris cirrus from Monday evening's storms has dissipated, resulting in mostly clear skies across a good portion of the peninsula... Along and south of the i-4 corridor. At the surface, the subtropical ridge axis is aligned through the central part of the peninsula and into the eastern gulf of mexico. This ridge position puts the forecast area in a light variable wind convection pattern for today. The light synoptic flow has allowed the nocturnal land breeze circulation to take control of the air flow early this morning, with most stations reporting light offshore winds. Isolated coverage of typical early morning storms has formed along this land- breeze boundary over the coastal waters. From the tampa bay area southward, this flow should be strong enough to keep this activity offshore through the morning hours. Further north along the nature coast, a position north of the ridge axis and resulting light SW synoptic flow is keeping the land breeze less dominant and will likely allow some of these isolated showers storms to occasionally make their way back to the coast during the next several hours. Short term (today through Wednesday)... today... A light and variable synoptic flow pattern will define the convective evolution of diurnal storms. Little signal in the atmospheric column to enhance or suppress storm development suggests staying close to the climatological spatial and temporal evolution for storms during this type of light flow. Other than a few isolated showers along the nature coast this morning, the rest of the region should see a generally dry first several daylight hours, as temperatures warm through the 80s. Weak and feeble sea-breeze development will commence around midday, with the first scattered storms going up along this boundary in the vicinity of the coast. As the afternoon progresses, the general evolution of storms will be to have the favored storm genesis region progress slowly inland to the north of the tampa bay area within a light SW synoptic flow, and to hold closer to the i-75 corridor from tampa bay southward, with variable to light SE flow. Beyond the middle to later afternoon hours, storm evolution will have less and less to do with the synoptic setup and become highly dependent on convective outflow. When the flow is light, this outflow finds little resistance to propagation, but also does not favor storm development when moving any particular direction. Therefore, this evening, storm spatial coverage will generally become rather uniform from the i-4 corridor southward, while still favoring a more inland position further to the north. Storms gradually diminish into the later evening hours with the loss of surface diurnal heating and less instability aloft due to abundant latent heat release from earlier convection. Overnight, a weak cold front will progress southward through the deep south reaching the northeast gulf coast and essentially stalling just to our north by Wednesday morning. Do not get too excited about a cold front. This is a weak boundary, and will not be providing any relief from the summer heat and humidity. Still too early to expect anything like that. In fact, the presence of the front to our north will provide a longer fetch of W SW flow over the warm waters of the gulf and likely contribute to even higher dewpoints through the middle of the week. After midnight into Wednesday morning, the SW W synoptic flow will be most defined from tarpon spring northward. The west flow is already climo favored for morning showers to move ashore, but add the frontal proximity and we should expect at least scattered, if not numerous showers storms to be present along the nature coast by the time of sunrise. A few showers along the coast can be expected further south as well, however, weaker synoptic flow and further distance from frontal enhancement should keep coverage considerably less. |
The convective pattern for the daylight hours of Wednesday would be to expect initial scattered storm development near the coast through midday, but with a pronounced trend toward greater storm coverage inland with time as the synoptic flow quickly propagates the west coast seabreeze inland toward the central part of the peninsula. Long term (Thursday through next Monday)... large scale pattern for the late week and upcoming weekend period remains fairly consistent from model to model and run to run... Adding higher than average confidence to the forecast. Weak stationary frontal boundary over the NE gulf of mexico and northern florida will quickly dissipate during the latter half of the work week and is replaced by decently strong high pressure building down the eastern seaboard. The position of a strong ridge to our north will provide the region with a well-defined and fairly strong synoptic E SE flow through the upcoming weekend and into the early portion of next week. This type of flow favors greatest diurnal thunderstorm coverage each day to occur along the i-75 corridor of the state, with a generally later start time to the convection (later afternoon early evening). Only concern for this part of the forecast, is if the large scale flow actually becomes strong enough to prevent a west coast seabreeze or keeps the feeble boundary just offshore. If this was to occur, best storm coverage could be confined to the immediate coast. At this time, will assume some of the stronger model solutions are overdone, as this type of strong flow is very unusual for late august. Therefore the forecast will follow a philosophy of near climo temps and sct-nmrs late afternoon evening storms through the end of the forecast period. Mentioned this last night and will again today. An fyi to boaters... stronger southeast east flow can pose a danger of storms developing in the later afternoon hours and rapidly moving offshore into the coastal waters. We frequently see instances during strong southeast flow were storms develop and move offshore rapidly enough to block prevent a safe path back to harbor for anyone navigating away from the immediate coast. There remains plenty of time to watch the forecast through the week, but for those looking to get some pleasure boating done next weekend, it is unlikely that a significant shift in the forecast philosophy will occur, and it is important to keep this hazardous potential in mind. Aviation (21 08z through 22 12z)... vfr conditions prevail for the morning hours for the west- central and southwest florida terminals. Light variable se winds shift onshore near the coast around midday, with increasing potential for typical summer thunderstorm development into the afternoon hours. Outside of any brief passing thunderstorm,VFR conditions will prevail. Scattered storms fade within a couple hours of sunset this evening, allowing mainly dryVFR conditions to remain in the forecast into Wednesday morning. Marine... high pressure continues to reside over the eastern gulf of mexico today, keeping winds and seas (outside of scattered thunderstorms) low. A weak cold front will approach the region from the north tonight and then stall over the northeast gulf Wednesday. This front will act to shift winds to a more predominant west to southwest direction, and will likely bring an enhancement to the coverage of showers and storms, especially to the north of tarpon springs. The front will decay during the later part of the week, allowing a very weak gradient, and resulting light winds to again develop over the eastern gulf of mexico. Fire weather... no significant fire weather concerns in the forecast through the next several days as typical summer conditions persist over west- central and southwest florida. Relative humidity remains well above critical levels, with a scattering of mainly afternoon and evening showers and storms each day. Fog potential... No significant fog or visibility reductions are anticipated through the next several days. Preliminary point temps pops Tpa 91 78 90 78 30 10 30 20 fmy 91 76 90 76 30 40 30 20 gif 92 75 91 75 60 50 40 10 srq 89 78 89 78 20 20 20 20 bkv 90 75 89 75 50 20 30 20 spg 91 79 89 78 20 20 30 30 Tbw watches warnings advisories Fl... Beach hazards statement through Thursday evening for coastal charlotte-coastal lee-coastal manatee-coastal sarasota. Gulf waters... None. Aviation... 05 carlisle |
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 |
| FMRF1 - 8725520 - Fort Myers, FL | 24 mi | 32 min | E 2.9 G 4.1 | |||||
| VENF1 - Venice, FL | 27 mi | 20 min | E 6 G 7 | 77°F | 89°F | 76°F | ||
| BGCF1 - Big Carlos Pass, FL | 31 mi | 146 min | E 4.1 G 5.1 | 78°F | 1019.2 hPa | |||
| 42013 - C10 - Navy-2 | 46 mi | 50 min | ESE 7.8 G 9.7 | 85°F | 1018.7 hPa | |||
| NPSF1 - 8725110 - Naples, FL | 48 mi | 32 min | 76°F | 87°F | 1019 hPa |
Wind History for Naples, 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| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Punta Gorda, Charlotte County Airport, FL | 23 mi | 27 min | E 3 | 10.00 mi | Fair | 76°F | 72°F | 88% | 1020 hPa |
Wind History from PGD (wind in knots)
| 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 | 8 AM | |
| Last 24hr | SE | E | SE | S | Calm | S | W | Calm | SE | N | Calm | Calm | E | NE | Calm | Calm | Calm | Calm | Calm | NE | Calm | E | ||
| 1 day ago | SE | Calm | S | Calm | E | S | NW | SE G25 | S | E | N | SE | N | NE | E | E | E | E | E | Calm | Calm | NE | E | E |
| 2 days ago | SE | E | NE | Calm | SE | NE | SE | S | SE | N | E | SE | Calm | E | Calm | E | Calm | Calm | E | Calm | Calm | SE |
Tide / Current Tables for Port Boca Grande, Charlotte Harbor, Florida
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of DataPort Boca Grande
Click for Map
Tue -- 12:41 AM EDT 1.17 feet High Tide
Tue -- 02:06 AM EDT 1.14 feet Low Tide
Tue -- 02:53 AM EDT Moonset
Tue -- 07:03 AM EDT Sunrise
Tue -- 09:23 AM EDT 1.73 feet High Tide
Tue -- 04:48 PM EDT Moonrise
Tue -- 05:02 PM EDT 0.22 feet Low Tide
Tue -- 08:00 PM EDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Tue -- 12:41 AM EDT 1.17 feet High Tide
Tue -- 02:06 AM EDT 1.14 feet Low Tide
Tue -- 02:53 AM EDT Moonset
Tue -- 07:03 AM EDT Sunrise
Tue -- 09:23 AM EDT 1.73 feet High Tide
Tue -- 04:48 PM EDT Moonrise
Tue -- 05:02 PM EDT 0.22 feet Low Tide
Tue -- 08:00 PM EDT Sunset
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 |
| 1.2 | 1.2 | 1.1 | 1.2 | 1.2 | 1.3 | 1.4 | 1.6 | 1.7 | 1.7 | 1.7 | 1.6 | 1.4 | 1.1 | 0.8 | 0.5 | 0.3 | 0.2 | 0.3 | 0.4 | 0.6 | 0.8 | 1 | 1.1 |
Tide / Current Tables for Boca Grande Pass, Charlotte Harbor, Florida Current
EDIT (on/off) Help One Week of DataBoca Grande Pass
Click for Map
Tue -- 02:53 AM EDT Moonset
Tue -- 03:02 AM EDT 0.06 knots Min Flood
Tue -- 07:03 AM EDT Sunrise
Tue -- 07:20 AM EDT 1.33 knots Max Flood
Tue -- 11:17 AM EDT -0.00 knots Slack
Tue -- 03:25 PM EDT -2.18 knots Max Ebb
Tue -- 04:48 PM EDT Moonrise
Tue -- 07:17 PM EDT 0.00 knots Slack
Tue -- 08:00 PM EDT Sunset
Tue -- 11:05 PM EDT 1.97 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Tue -- 02:53 AM EDT Moonset
Tue -- 03:02 AM EDT 0.06 knots Min Flood
Tue -- 07:03 AM EDT Sunrise
Tue -- 07:20 AM EDT 1.33 knots Max Flood
Tue -- 11:17 AM EDT -0.00 knots Slack
Tue -- 03:25 PM EDT -2.18 knots Max Ebb
Tue -- 04:48 PM EDT Moonrise
Tue -- 07:17 PM EDT 0.00 knots Slack
Tue -- 08:00 PM EDT Sunset
Tue -- 11:05 PM EDT 1.97 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 |
| 1.3 | 0.8 | 0.3 | 0.1 | 0.2 | 0.7 | 1.1 | 1.3 | 1.3 | 1 | 0.7 | 0.2 | -0.5 | -1.1 | -1.8 | -2.1 | -2.1 | -1.7 | -1 | -0.2 | 0.5 | 1.2 | 1.8 | 2 |
Weather Map and Satellite Images
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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.
target = "new">Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Tampa Bay, FL (8,2,3,4)
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Ground Weather Radar Station Tampa Bay Area, 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. |