Monday, September25, 2017 L-36.com


Marine Weather and Tides
Rotonda, FL

Version 3.4
What's New / NOTES
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.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:17AMSunset 7:21PM Monday September 25, 2017 1:04 PM EDT (17:04 UTC) Moonrise 11:06AMMoonset 10:15PM Illumination 25% Phase: Waxing Crescent; Moon at 5 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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GMZ856 Coastal Waters From Bonita Beach To Englewood Fl Out 20 Nm- 1008 Am Edt Mon Sep 25 2017
This afternoon..East winds around 10 knots then becoming south around 5 knots in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop.
Tonight..West winds around 5 knots then becoming northwest around 5 knots after midnight. Seas 2 feet or less. Bay and inland waters smooth.
Tuesday..Northeast winds around 5 knots then becoming southwest around 5 knots in the afternoon. Seas 2 feet or less. Bay and inland waters smooth. Isolated Thunderstorms.
Tuesday night..West winds around 5 knots then becoming northwest around 5 knots after midnight. Seas 2 feet or less. Bay and inland waters smooth.
Wednesday..North winds around 5 knots then becoming northwest in the afternoon. Seas 2 feet or less. Bay and inland waters smooth. Isolated Thunderstorms.
Wednesday night..Northwest winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop. Isolated Thunderstorms.
Thursday..North winds around 5 knots then becoming southwest in the afternoon. Seas 2 feet or less. Bay and inland waters smooth. Scattered Thunderstorms.
Thursday night..West winds around 5 knots then becoming southeast after midnight. Seas 2 feet or less. Bay and inland waters smooth. Scattered Thunderstorms.
Friday..Southeast winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop. Scattered Thunderstorms.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 1008 Am Edt Mon Sep 25 2017
Synopsis..Light east to northeast flow will become more northerly as high pressure lifts northwest of the region. As the gradient will remain light, the seabreeze will allow winds to shift onshore near the coast each afternoon. Dry conditions are expected much of the coming week, with gradually increasing rain chances by the weekend. No marine hazards are expected during this time.

7 Day Forecast for Marine Location Near Rotonda, FL
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location: 26.74, -82.33     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 251357
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
957 am edt Mon sep 25 2017

Update
An upper low over the ms al coastline is producing just
enough instability to produce some low mid cloudiness over
the west coast of florida this morning. Some showers are
showing up well off the coast, but are not expected to
impact any of the west central and southwest florida areas
today. Pw values are already lower than 24 hours ago and is
expected to continue to decrease over the next 24-48 hours.

No changes needed for the morning update.

Aviation
Vfr conditions expected at all terminals for the next 24
hours. Drier air moving into the area should keep conditions
rain free. Winds will be light and variable this morning,
then slightly increasing with an onshore flow this
afternoon, but still remaining less than 10 knots.

Marine
Light east to northeast flow will become more northerly as high
pressure lifts northwest of the region. As the gradient
will remain light, the seabreeze will allow winds to shift
onshore near the coast each afternoon. Dry conditions are
expected much of the coming week, with gradually increasing
rain chances by the weekend. No marine hazards are expected
during this time.

Preliminary point temps pops
Tpa 89 76 90 76 10 10 10 0
fmy 91 76 91 75 20 10 20 10
gif 92 74 92 73 20 20 10 10
srq 87 75 88 75 10 0 10 0
bkv 90 70 91 72 10 10 10 0
spg 89 77 89 77 10 10 10 0

Tbw watches warnings advisories
Fl... None.

Gulf waters... None.

Update aviation marine... 74 wynn
upper air... 05 carlisle
decision support... 09 rude


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
VENF1 - Venice, FL 24 mi65 min SW 5.1 G 5.1 85°F 84°F1013.1 hPa (+0.3)75°F
FMRF1 - 8725520 - Fort Myers, FL 25 mi47 min N 4.1 G 5.1 86°F 87°F1012.3 hPa

Wind History for Naples, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Punta Gorda, Charlotte County Airport, FL22 mi72 minESE 310.00 miFair87°F73°F65%1013.4 hPa
Venice Municipal Airport, FL24 mi70 minS 510.00 miFair88°F73°F62%1013.2 hPa

Wind History from PGD (wind in knots)
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Last 24hrE5--NE5N4SW7S5S12E4E9E9E4E5E3CalmCalmCalmNE3NE3NE3NE7E5CalmSE3NW4
1 day agoE10E11E8NE10NE11NE9NE8E6NE6N5N6NE4NE4NE3N3NE6N4E3NE5NE6NE9NE5NE5E7
2 days agoN4N7N63E5E6NE3NE3E3N5NE6E4NE3NE4N4NE4NE4NE4NE5NE7NE10E9E10NE10

Tide / Current Tables for Port Boca Grande, Charlotte Harbor, Florida
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Port Boca Grande
Click for Map
Mon -- 03:41 AM EDT     1.73 feet High Tide
Mon -- 07:18 AM EDT     Sunrise
Mon -- 10:24 AM EDT     0.36 feet Low Tide
Mon -- 12:05 PM EDT     Moonrise
Mon -- 05:49 PM EDT     1.28 feet High Tide
Mon -- 07:21 PM EDT     Sunset
Mon -- 09:35 PM EDT     1.01 feet Low Tide
Mon -- 11:15 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.31.51.61.71.71.61.41.10.80.50.40.40.50.70.811.21.31.31.21.1111.1

Tide / Current Tables for Boca Grande Pass, Charlotte Harbor, Florida Current
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Boca Grande Pass
Click for Map
Mon -- 02:16 AM EDT     1.91 knots Max Flood
Mon -- 05:11 AM EDT     -0.00 knots Slack
Mon -- 07:18 AM EDT     Sunrise
Mon -- 08:45 AM EDT     -1.90 knots Max Ebb
Mon -- 12:05 PM EDT     Moonrise
Mon -- 12:24 PM EDT     0.00 knots Slack
Mon -- 03:31 PM EDT     1.75 knots Max Flood
Mon -- 07:21 PM EDT     Sunset
Mon -- 08:19 PM EDT     -0.00 knots Slack
Mon -- 10:04 PM EDT     -0.32 knots Max Ebb
Mon -- 11:15 PM EDT     Moonset
Mon -- 11:32 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.71.51.91.81.10.2-0.7-1.4-1.8-1.9-1.7-1.1-0.40.51.31.71.71.410.50.1-0.2-0.3-0.2

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Tampa Bay, FL (13,3,4,5)
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Ground Weather Radar Station Tampa Bay Area, FL
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weather_mapweather_map weather_map

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.