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Marine Weather and Tides
Version 3.4 |
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues. 6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported. 5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive. |
| Sunrise 6:58AM | Sunset 7:58PM | Friday April 20, 2018 11:46 PM EDT (03:46 UTC) | Moonrise 9:54AM | Moonset 11:53PM | Illumination 32% |  |
Marine Forecasts
EDIT (on/off) Help| GMZ853 Coastal Waters From Englewood To Tarpon Springs Fl Out 20 Nm- 758 Pm Edt Fri Apr 20 2018 .small craft exercise caution... Rest of tonight..Northwest winds 10 to 15 knots then becoming northeast 15 to 20 knots after midnight. Seas 2 to 4 feet. Bay and inland waters a moderate chop to choppy. Saturday..East winds 15 to 20 knots early in the morning... Diminishing to 10 to 15 knots late in the morning, then becoming southeast around 10 knots in the afternoon. Seas 2 to 3 feet. Bay and inland waters a moderate chop. Saturday night..North winds around 10 knots then becoming east in the late evening and overnight. Seas 2 to 3 feet. Bay and inland waters a light chop. Sunday..Southeast winds around 10 knots then becoming south around 5 knots late in the afternoon. Seas 2 to 3 feet. Bay and inland waters a light chop. A chance of showers and a slight chance of Thunderstorms in the afternoon. Sunday night..South winds around 5 knots then becoming east 5 to 10 knots late in the evening, then becoming southeast around 15 knots after midnight. Seas 2 feet. Bay and inland waters a moderate chop. A chance of showers and a slight chance of Thunderstorms. Monday..South winds around 15 knots. Seas 2 feet. Bay and inland waters a moderate chop. A chance of showers and a slight chance of Thunderstorms. Monday night..Southeast winds around 15 knots. Seas 2 feet. Bay and inland waters a moderate chop. A chance of showers in the evening. A slight chance of Thunderstorms. Tuesday..South winds around 15 knots then becoming southwest in the afternoon. Seas 2 to 3 feet. Bay and inland waters a moderate chop. A slight chance of Thunderstorms in the morning. Tuesday night..West winds around 10 knots. Seas 2 to 3 feet. Bay and inland waters a light chop. Wednesday..West winds around 10 knots. Seas 2 to 4 feet. Bay and inland waters a light chop. | GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 758 Pm Edt Fri Apr 20 2018 Synopsis.. A weakening cold front will stall across the central waters overnight. High pressure will build over the mid atlantic coast tightening the pressure gradient across the coastal waters with increasing easterly winds tonight and Saturday...with advisory levels winds possible at times...mainly over the northern and central waters. A cold front will again approach the waters Sunday night and Monday with an increasing chance of showers Thunderstorms. |
7 Day Forecast for Marine Location Near Vamo, FL
Hourly EDIT Helplocation: 27.22, -82.51 debug
Area Discussion for - Tampa Bay, FL
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus62 ktbw 210045 afdtbw area forecast discussion national weather service tampa bay ruskin fl 845 pm edt Fri apr 20 2018 Update A weak cold front is very slowly settling southward through the central florida peninsula. There is a defined dewpoint gradient along this front, with middle 60s dewpoint south of i-4... And dewpoints mainly in the 50s further to the north. Within this post-frontal environment... A large expanse of lower stratus is also evident on satellite this evening... And should continue to expand southward into the i-4 corridor through the rest of the evening hours. These clouds will mainly be an impact to the aviation community. A tightening pressure gradient along and behind the front will also lead to choppy to rough conditions over the eastern gulf of mexico... Mainly from the venice area northward through the rest of the overnight and early Saturday morning. Mariners should expect developing cautionary level winds out of the east... With periods of near advisory level winds to the north of tarpon springs. Low temperatures overnight generally in the lower to middle 60s... With a few spots up toward levy county dipping into the upper 50s toward sunrise. |
Aviation (21 00z through 22 00z) Main forecast concern for remainder of the evening and overnight will be the evolution of a large area of MVFR cigs to the north of the i-4 corridor. This region should expand to the southwest after sunset, but confidence in its impacts around ktpa kpie krsw are lower than average. Have included MVFR conditions after midnight as these areas of lower ceilings in NE flow tend to be more aggressive than most nwp will show. Onshore W NW flow at 00z will shift back to NE e after 03z with the decay of the seabreeze. Any early morning MVFR CIGS lift to allow for a sct-bkn deck with bases above 4kft for much of the day. Sea-breeze development should turn winds onshore along the immediate coast. A few showers along this sea-breeze are possible inland... With klal seeing the greatest potential for a later afternoon shower. Preliminary point temps pops Tpa 68 82 70 83 0 40 30 50 fmy 68 87 70 86 0 20 20 50 gif 68 81 69 84 10 30 40 60 srq 69 78 70 81 0 10 20 40 bkv 64 81 68 83 10 40 40 50 spg 69 84 71 84 0 20 20 40 Tbw watches warnings advisories Fl... None. Gulf waters... None. Mroczka |
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 |
| VENF1 - Venice, FL | 11 mi | 47 min | N 8 G 11 | 73°F | 76°F | 1019.9 hPa (+1.1) | 64°F | |
| PMAF1 | 29 mi | 47 min | 73°F | 78°F | 1020.1 hPa (+1.4) | |||
| MTBF1 | 31 mi | 47 min | ENE 19 G 21 | 73°F | 1020.4 hPa (+1.4) | 66°F | ||
| 42098 | 34 mi | 77 min | 74°F | 2 ft | ||||
| CLBF1 | 37 mi | 113 min | N 2.9 G 5.1 | 75°F | 1019.3 hPa | |||
| SAPF1 - 8726520 - St. Petersburg, FL | 38 mi | 47 min | NE 17 G 20 | 73°F | 76°F | 1019.9 hPa (+1.4) | ||
| OPTF1 - 8726607 - Old Port Tampa, FL | 44 mi | 47 min | ENE 6 G 13 | 71°F | 76°F | 1020.6 hPa (+1.4) | ||
| MCYF1 | 48 mi | 47 min | 78°F | |||||
| TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL | 49 mi | 59 min | N 8.9 G 11 |
Wind History for C-Cut, FL
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Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Venice Municipal Airport, FL | 11 mi | 52 min | N 5 | 10.00 mi | Fair | 73°F | 64°F | 74% | 1020 hPa |
| Sarasota / Bradenton, Sarasota-Bradenton International Airport, FL | 13 mi | 54 min | N 5 | 10.00 mi | Fair | 71°F | 64°F | 79% | 1019.5 hPa |
Wind History from SRQ (wind in knots)
| 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 | |
| Last 24hr | Calm | NW | NW | NW | NW | N | Calm | Calm | Calm | NE | N | W | W | W | W | W | W | W | W | W | NW | N | N | N |
| 1 day ago | Calm | SW | Calm | Calm | Calm | Calm | Calm | Calm | Calm | SW | SW | SW | W | W | W | W | W | W | W | W | NW | N | N | Calm |
| 2 days ago | Calm | Calm | Calm | Calm | Calm | Calm | E | E | E | E | SE | Calm | SW | W | W | W | W | W | W | W | NW | NW | Calm | Calm |
Tide / Current Tables for Venice Inlet (inside), Florida
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of Data| Venice Inlet (inside) Click for Map Fri -- 05:39 AM EDT 1.02 feet High Tide Fri -- 07:00 AM EDT Sunrise Fri -- 07:13 AM EDT 1.01 feet Low Tide Fri -- 10:53 AM EDT Moonrise Fri -- 03:15 PM EDT 2.18 feet High Tide Fri -- 07:57 PM EDT Sunset Fri -- 11:45 PM EDT -0.28 feet Low Tide Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| -0.1 | 0.1 | 0.4 | 0.7 | 0.9 | 1 | 1 | 1 | 1 | 1.1 | 1.2 | 1.4 | 1.6 | 1.8 | 2.1 | 2.2 | 2.1 | 1.9 | 1.5 | 1.1 | 0.6 | 0.2 | -0.1 | -0.2 |
Tide / Current Tables for Sarasota, Sarasota Bay, Florida
EDIT (on/off) Help One Week of Data| Sarasota Click for Map Fri -- 05:53 AM EDT 1.19 feet High Tide Fri -- 07:00 AM EDT Sunrise Fri -- 09:19 AM EDT 1.10 feet Low Tide Fri -- 10:53 AM EDT Moonrise Fri -- 03:19 PM EDT 2.26 feet High Tide Fri -- 07:57 PM EDT Sunset Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| -0.3 | 0 | 0.4 | 0.7 | 1 | 1.2 | 1.2 | 1.2 | 1.1 | 1.1 | 1.1 | 1.3 | 1.5 | 1.8 | 2.1 | 2.3 | 2.2 | 2.1 | 1.8 | 1.4 | 0.9 | 0.5 | 0.1 | -0.1 |
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.
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Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Tampa Bay, FL (23,6,7,8)
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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. |