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Marine Weather and Tides
Version 3.4 |
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 7:16AM | Sunset 7:30PM | Friday September 20, 2019 8:45 PM EDT (00:45 UTC) | Moonrise 10:48PM | Moonset 11:50AM | Illumination 56% |  |
GMZ853 Coastal Waters From Englewood To Tarpon Springs Fl Out 20 Nm- 827 Pm Edt Fri Sep 20 2019
.small craft advisory in effect through Sunday morning...
Rest of tonight..East winds 20 to 25 knots diminishing to around 20 knots after midnight. Seas 3 to 5 feet. Bay and inland waters rough.
Saturday..East winds around 20 knots. Seas 3 to 5 feet. Bay and inland waters choppy.
Saturday night..East winds around 20 knots. Seas 3 to 5 feet. Bay and inland waters choppy.
Sunday..East winds around 20 knots diminishing to 10 to 15 knots in the afternoon. Seas 2 to 4 feet. Bay and inland waters choppy.
Sunday night..East winds around 20 knots. Seas 2 to 3 feet. Bay and inland waters choppy.
Monday..Northeast winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Monday night..East winds around 15 knots. Seas 2 feet. Bay and inland waters a moderate chop.
Tuesday..Northeast winds around 10 knots then becoming north in the afternoon. Seas 2 feet. Bay and inland waters a light chop.
Tuesday night..Northeast winds around 10 knots then becoming southeast after midnight. Seas 2 feet or less. Bay and inland waters a light chop.
Wednesday..East winds around 10 knots then becoming north in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop.
.small craft advisory in effect through Sunday morning...
Rest of tonight..East winds 20 to 25 knots diminishing to around 20 knots after midnight. Seas 3 to 5 feet. Bay and inland waters rough.
Saturday..East winds around 20 knots. Seas 3 to 5 feet. Bay and inland waters choppy.
Saturday night..East winds around 20 knots. Seas 3 to 5 feet. Bay and inland waters choppy.
Sunday..East winds around 20 knots diminishing to 10 to 15 knots in the afternoon. Seas 2 to 4 feet. Bay and inland waters choppy.
Sunday night..East winds around 20 knots. Seas 2 to 3 feet. Bay and inland waters choppy.
Monday..Northeast winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Monday night..East winds around 15 knots. Seas 2 feet. Bay and inland waters a moderate chop.
Tuesday..Northeast winds around 10 knots then becoming north in the afternoon. Seas 2 feet. Bay and inland waters a light chop.
Tuesday night..Northeast winds around 10 knots then becoming southeast after midnight. Seas 2 feet or less. Bay and inland waters a light chop.
Wednesday..East winds around 10 knots then becoming north in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 827 Pm Edt Fri Sep 20 2019
Synopsis..High pressure along the eastern seaboard is producing a tight pressure gradient resulting in gusty east-northeast winds over the gulf waters and hazardous choppy seas are expected through Sunday. Winds will weaken with seas relaxing next week.
Synopsis..High pressure along the eastern seaboard is producing a tight pressure gradient resulting in gusty east-northeast winds over the gulf waters and hazardous choppy seas are expected through Sunday. Winds will weaken with seas relaxing next week.
7 Day Forecast for Marine Location Near Lake Sarasota, FL
Hourly EDIT Helplocation: 27.31, -82.32 debug
Area Discussion for - Tampa Bay, FL
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus62 ktbw 201749 afdtbw area forecast discussion national weather service tampa bay ruskin fl 149 pm edt Fri sep 20 2019 Short term The subtropical jet axis is flowing clockwise around an upper-level ridge before diving south over the florida peninsula around an upper- level trough. This is leading to higher northerly winds aloft. The jet then turns northward once more over cuba and regions the polar jet over the north atlantic. A strong ridge is situated below this feature and extends all the way down to the surface, with the surface high pressure feature situated in the mid- atlantic region very close to the chesapeake bay. A northeasterly wind is beginning to advect small plumes of moisture back into what is an otherwise fairly dry column of air, but the vertical extent of this moisture is very limited. From the morning sounding, the 500mb temperature is around 22f with a dewpoint of around -64f. While diurnal heating is leading to sufficient instability near the surface, any strong-ish updrafts are struggling due to the dry air. Morning showers ran into this issue, and subsequently had little vertical development and only produced weak radar returns. This pattern is expected to hold through the weekend as dry air continues to funnel into the region. By far, the biggest hazard through the weekend is the marine conditions. Thanks to a tight pressure gradient from the strong high pressure feature, winds and seas have been and will continue to be at advisory criteria through Sunday. Long term Hints that the dry season is upon us are beginning to appear. Weather conditions are expected to remain benign through next week as high pressure dominates the region. Highs will run around normal, in the upper 80s near the coast to the low 90s inland. Rain coverage is expected to be all but nonexistent for everywhere except extreme portions of southwest florida where an axis of tropical moisture could support some showers each day. Elsewhere, dry air aloft and fairly strong subsidence should suppress storm development. A limited, but higher, chance for rain will return Friday for northern portions of the peninsula as more moisture returns to this area, but overall coverage is still expected to be limited. Aviation Vfr conditions are expected through the forecast period. Stronger |
winds of around 20kts from the ene are possible at all terminals due to the tight pressure gradient, but otherwise benign conditions are expected. Marine A strong pressue gradient associated with a strong high pressure gradient is producing strong ene winds in excess of 20kts for coastal waters. These higher wind speeds are contributing to higher seas of up to 7 feet in some areas. Subsequently, a small craft advisory is in effect through Sunday morning. Conditions will begin to subside as wind speeds decrease Sunday afternoon. Over the next few days, conditions will gradually return to normal with winds of 10-12kts and seas running around 1-2ft in coastal waters. Fire weather While drier air is present aloft, conditions are still fairly moist near the surface. Subsequently, a few showers have developed and are developing across the region. Values for rh should continue to remain above critical levels all week even as rain chances decrease for the next few days. However, dispersion values are running high today and will continue to do so through Saturday as gusty conditions associated with a tight pressure gradient from a high pressure feature over the mid-atlantic persist. Preliminary point temps pops Tpa 72 90 71 91 10 0 0 0 fmy 74 89 74 89 10 10 10 30 gif 72 90 71 91 10 0 0 0 srq 73 91 72 91 10 10 0 10 bkv 69 91 69 91 10 0 0 0 spg 73 91 73 91 10 0 0 10 Tbw watches warnings advisories Fl... None. Gulf waters... Small craft advisory until 8 am edt Sunday for coastal waters from bonita beach to englewood fl out 20 nm-coastal waters from englewood to tarpon springs fl out 20 nm-coastal waters from tarpon springs to suwannee river fl out 20 nm- waters from bonita beach to englewood fl out 20 to 60 nm- waters from englewood to tarpon springs fl out 20 to 60 nm- waters from tarpon springs to suwannee river fl out 20 to 60 nm. Short term long term aviation marine fire weather... 97 flannery |
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 | 18 mi | 46 min | NE 9.9 G 13 | 80°F | 85°F | 1017.7 hPa (+0.5) | 68°F | |
| PMAF1 | 26 mi | 52 min | 80°F | 86°F | 1018.5 hPa | |||
| MTBF1 | 28 mi | 52 min | E 19 G 22 | 82°F | 1018.7 hPa | 66°F | ||
| 42013 - C10 - Navy-2 | 33 mi | 76 min | SSW 21 G 25 | 83°F | 85°F | 1017.7 hPa | ||
| GCTF1 | 34 mi | 52 min | 82°F | 1018.6 hPa | 66°F | |||
| CLBF1 | 35 mi | 112 min | ENE 7 G 15 | 83°F | 1017.1 hPa | |||
| SAPF1 - 8726520 - St. Petersburg, FL | 35 mi | 52 min | E 13 G 18 | 82°F | 84°F | 1018.9 hPa | ||
| 42098 | 38 mi | 46 min | 84°F | 3 ft | ||||
| OPTF1 - 8726607 - Old Port Tampa, FL | 40 mi | 52 min | E 6 G 13 | 82°F | 84°F | 1018.8 hPa | ||
| MCYF1 | 42 mi | 52 min | 85°F | |||||
| TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL | 43 mi | 58 min | NE 6 G 8.9 | |||||
| TSHF1 - 8726667 - East Bay Causeway, FL | 43 mi | 52 min | NE 7 G 14 |
Wind History for C-Cut, 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. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Sarasota / Bradenton, Sarasota-Bradenton International Airport, FL | 14 mi | 53 min | ENE 9 | 10.00 mi | Fair | 82°F | 66°F | 58% | 1017.4 hPa |
| Venice Municipal Airport, FL | 18 mi | 51 min | ENE 13 | 10.00 mi | Fair | 79°F | 68°F | 70% | 1017.9 hPa |
Link to 5 minute data for KSRQ
Wind History from SRQ (wind in knots)
| 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 | 8 PM | |
| Last 24hr | E | E G17 | E | E | NE | NE | NE | NE | E | NE | NE | NE | E | E G23 | E G24 | E G20 | E | E G27 | E G17 | E | E | E G19 | E | E |
| 1 day ago | E | Calm | E | NE | E | NE | NE | E | E | E | NE | NE | NE | NE | NE G18 | NE | NE G18 | NE G18 | NE G18 | E G20 | E | E | E | |
| 2 days ago | NW | N | N | N | E | NE | E | Calm | Calm | NE | N | NE | NE | E | NE | NW | NE | E |
Tide / Current Tables for Sarasota, Sarasota Bay, Florida (2)
EDIT Weekend mode (on/off) (on/off) Help One Week of DataSarasota
Click for Map
Fri -- 03:52 AM EDT 2.18 feet High Tide
Fri -- 07:17 AM EDT Sunrise
Fri -- 12:19 PM EDT 0.39 feet Low Tide
Fri -- 12:51 PM EDT Moonset
Fri -- 06:26 PM EDT 1.53 feet High Tide
Fri -- 07:29 PM EDT Sunset
Fri -- 10:53 PM EDT 1.33 feet Low Tide
Fri -- 11:49 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 03:52 AM EDT 2.18 feet High Tide
Fri -- 07:17 AM EDT Sunrise
Fri -- 12:19 PM EDT 0.39 feet Low Tide
Fri -- 12:51 PM EDT Moonset
Fri -- 06:26 PM EDT 1.53 feet High Tide
Fri -- 07:29 PM EDT Sunset
Fri -- 10:53 PM EDT 1.33 feet Low Tide
Fri -- 11:49 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 |
| 1.4 | 1.6 | 1.9 | 2.1 | 2.2 | 2.1 | 1.9 | 1.6 | 1.3 | 1 | 0.7 | 0.5 | 0.4 | 0.4 | 0.6 | 0.9 | 1.2 | 1.4 | 1.5 | 1.5 | 1.5 | 1.4 | 1.3 | 1.3 |
Tide / Current Tables for Sarasota, Sarasota Bay, Florida
EDIT (on/off) Help One Week of DataSarasota
Click for Map
Fri -- 04:23 AM EDT 2.12 feet High Tide
Fri -- 07:17 AM EDT Sunrise
Fri -- 12:02 PM EDT 0.43 feet Low Tide
Fri -- 12:51 PM EDT Moonset
Fri -- 06:17 PM EDT 1.48 feet High Tide
Fri -- 07:29 PM EDT Sunset
Fri -- 09:39 PM EDT 1.31 feet Low Tide
Fri -- 11:49 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 04:23 AM EDT 2.12 feet High Tide
Fri -- 07:17 AM EDT Sunrise
Fri -- 12:02 PM EDT 0.43 feet Low Tide
Fri -- 12:51 PM EDT Moonset
Fri -- 06:17 PM EDT 1.48 feet High Tide
Fri -- 07:29 PM EDT Sunset
Fri -- 09:39 PM EDT 1.31 feet Low Tide
Fri -- 11:49 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 |
| 1.4 | 1.5 | 1.8 | 2 | 2.1 | 2.1 | 1.9 | 1.6 | 1.2 | 0.9 | 0.6 | 0.5 | 0.4 | 0.5 | 0.6 | 0.9 | 1.2 | 1.4 | 1.5 | 1.5 | 1.4 | 1.3 | 1.3 | 1.4 |
Weather Map
(on/off) Help Weather Map
GEOS Local Image of 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 Tampa Bay, FL (20,4,5,8)
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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. |