Wednesday, September20, 2017 L-36.com


Marine Weather and Tides
Sanibel, 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 7:14AMSunset 7:26PM Wednesday September 20, 2017 9:02 AM EDT (13:02 UTC) Moonrise 6:33AMMoonset 7:02PM Illumination 0% Phase: New Moon; Moon at 29 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
    EDIT      (on/off)   Help
GMZ856 Coastal Waters From Bonita Beach To Englewood Fl Out 20 Nm- 346 Am Edt Wed Sep 20 2017
Today..East winds around 10 knots then becoming northwest around 5 knots late in the afternoon. Seas 2 feet. Bay and inland waters a light chop. Isolated showers in the afternoon.
Tonight..North winds around 10 knots then becoming east in the late evening and overnight. Seas 2 feet. Bay and inland waters a light chop. Isolated showers in the evening.
Thursday..East winds around 10 knots then becoming north around 5 knots late in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop. Isolated showers in the afternoon.
Thursday night..North winds around 10 knots then becoming east in the late evening and overnight. Seas 2 feet. Bay and inland waters a light chop. Isolated Thunderstorms.
Friday..Northeast winds around 10 knots then becoming north late in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop. Isolated Thunderstorms. Scattered showers in the afternoon.
Friday night..North winds 5 to 10 knots then becoming east around 15 knots in the late evening and early morning, then diminishing to 5 to 10 knots toward morning. Seas 2 feet. Bay and inland waters a moderate chop. Scattered showers and isolated Thunderstorms.
Saturday..Northeast winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop. Scattered showers and isolated Thunderstorms.
Saturday night..Northeast winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop. Scattered showers in the evening. Isolated Thunderstorms.
Sunday..North winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop. Isolated Thunderstorms.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 346 Am Edt Wed Sep 20 2017
Synopsis..Relaxed high pressure will dominate the gulf of mexico through the end of the week. The high continues during the weekend but with a tightening pressure gradient as hurricane maria moves across the southwestern waters of the atlantic...with increased winds on gulf waters. Mariners should Monitor the progress of hurricane maria and stay up to date with forecasts for the gulf of mexico.

7 Day Forecast for Marine Location Near Sanibel, FL
   Hourly   EDIT   Help
location: 26.43, -82.09     debug


Area Discussion for - Tampa Bay, FL
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus62 ktbw 201120
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
720 am edt Wed sep 20 2017

Aviation
20 12z tafs.VFR conditions will prevail at all terminals through
the next 24 hours. Very few clouds this morning, then slightly
increasing to a sct CU deck this afternoon. Northern terminals
will stay dry while pgd fmy rsw may see a stray shower this
afternoon, so will cover that with vcsh after 18z. Winds
will remain light less than 10 knots. No other aviation
impacts expected.

Prev discussion issued 347 am edt Wed sep 20 2017
short term (today - Thursday)...

aloft - ridging across the gulf of mexico and fl slips west as a trough
initially from the ohio valley to the deep south slides to the eastern
seaboard... And down into north fl and adjacent waters. Surface - broad
high pressure sprawling across the southeastern u.S. And into the gulf
continues as a weak trough eases across the southern half of the state.

Northeasterly flow continues to prevail... Light enough to allow afternoon
sea breezes to shift winds to onshore along the coast... With some lower
level moisture streaming across. Much of hillsborough and polk counties
and northward stay fairly dry with pwat values of 1.3 to 1.5 inches.

South of those counties the pwat ranges from 1.5 to 1.8 inches.

The higher moisture along with the trough will support lower rain
chances for the southeast and southern counties in the afternoons.

Anticipate mainly showers but there could be isolated
thunderstorms... With activity ending early evening. Temperatures
continue to run above normal... A couple of degrees for the lows
and 2 to 3 degrees for the highs.

Mid term long term (Thursday night-Tuesday)...

deeper moisture will overspread the entire region for Friday
Saturday with an increasing east to northeast flow setting up. This
combined with daytime heating and the sea breezes will lead to
scattered to numerous mainly afternoon and evening showers and
thunderstorms both days. Sunday into early next week the global
models are continuing to move hurricane maria northward well east of
the florida peninsula with the northeast flow shifting to a more
northerly direction bringing some drier air back southward into the
area Sunday through Tuesday which will lower rain chances to 20
percent or less on these days.

Daytime high temperatures will be near to a couple of degrees above
normal through the period with overnight remaining near normal.

Aviation...

20 06z tafs.VFR prevails with few-sct clouds although lal may see
limited br around sunrise. Increasing moisture in the south could
support isold shra tsra... Will keep pgd fmy rsw just vcsh for now.

Light NE winds increase slightly in the morning... With some of the
coastal terminals shifting during the afternoon to onshore.

Marine...

high pressure with a relaxed gradient will dominate the waters
through the end of the week with benign conditions... Except for
higher winds and seas near thunderstorms. During the weekend
hurricane maria moving across the southern waters of the atlantic
will tighten the gradient with an increase in wind speeds.

Mariners should monitor the progress of hurricane maria... Detailed
information on maria may be found on advisories from the national
hurricane center.

Fire weather...

while slightly drier air continues across parts of the area for the
next couple of days the minimum rh remain above critical values.

Increasing moisture and rain chances toward the end of the week will
help maintain higher rh.

Hydrology...

flooding continues on many rivers and creeks... Most have crested
and are on a downward trend. Although the withlacoochee river at both
croom and trilby are expected crest in the next couple of days.

While water levels will continue to slowly decrease residents near
rivers and creeks should monitor levels and use caution in
around any residual flooded areas.

Preliminary point temps pops
Tpa 92 75 91 75 10 0 10 20
fmy 91 75 92 74 30 20 30 20
gif 92 72 91 73 10 0 10 10
srq 90 75 91 74 20 10 20 20
bkv 92 71 91 71 10 0 10 10
spg 90 76 89 75 10 10 10 20

Tbw watches warnings advisories
Fl... None.

Gulf waters... None.

Aviation... 74 wynn
decision support... 25 davis


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FMRF1 - 8725520 - Fort Myers, FL 19 mi45 min E 2.9 G 5.1 78°F 88°F1014.9 hPa
VENF1 - Venice, FL 48 mi63 min ENE 7 G 8.9 76°F 83°F1015.3 hPa (+1.0)73°F

Wind History for Naples, 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
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fort Myers, Page Field, FL16 mi70 minE 410.00 miA Few Clouds76°F75°F100%1015.1 hPa
Fort Myers, Southwest Florida International Airport, FL19 mi70 minENE 38.00 miFair76°F75°F97%1014.9 hPa

Wind History from FMY (wind in knots)
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
9
AM
Last 24hrNE64E4NE85N9NE8NE5NE8NE6NE9NE10NE9NE7E7E6E6E5E5E3E3E3E4E3
1 day agoN9N8N10
G14
N9NE7NW11
G16
NW9NW11NW12
G18
NW14NW9N10N5NE7NE8E7NE6NE6NE5N3N3NE5NE4NE6
2 days agoNE8NE9N10N7N11NE7NE7NE6NE7NE10NE8N5N4E6NE5E5E3CalmN3N4NW4NW4NW3N5

Tide / Current Tables for Point Ybel, San Carlos Bay Entrance, Florida
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Point Ybel
Click for Map
Wed -- 01:00 AM EDT     2.55 feet High Tide
Wed -- 01:30 AM EDT     New Moon
Wed -- 07:15 AM EDT     Sunrise
Wed -- 07:26 AM EDT     0.98 feet Low Tide
Wed -- 07:33 AM EDT     Moonrise
Wed -- 01:09 PM EDT     3.00 feet High Tide
Wed -- 07:26 PM EDT     Sunset
Wed -- 08:01 PM EDT     Moonset
Wed -- 08:02 PM EDT     0.92 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.42.52.52.21.91.51.2111.31.82.42.832.92.72.31.81.410.91.11.52

Tide / Current Tables for Point Ybel (0.4 Mi. NW of), Florida Current
   EDIT      (on/off)   Help   One Week of Data
Point Ybel (0.4 Mi. NW of)
Click for Map
Wed -- 01:30 AM EDT     New Moon
Wed -- 03:06 AM EDT     -0.00 knots Slack
Wed -- 06:06 AM EDT     -0.96 knots Max Ebb
Wed -- 07:15 AM EDT     Sunrise
Wed -- 07:33 AM EDT     Moonrise
Wed -- 08:31 AM EDT     0.00 knots Slack
Wed -- 11:25 AM EDT     1.30 knots Max Flood
Wed -- 03:03 PM EDT     -0.00 knots Slack
Wed -- 06:31 PM EDT     -1.25 knots Max Ebb
Wed -- 07:26 PM EDT     Sunset
Wed -- 08:01 PM EDT     Moonset
Wed -- 09:14 PM EDT     0.00 knots Slack
Wed -- 11:48 PM EDT     1.14 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.10.80.50-0.4-0.8-1-0.8-0.30.30.91.31.310.50-0.5-0.9-1.2-1.2-0.8-0.20.51

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Tampa Bay, FL (9,2,3,4)
      (on/off)   Help

Ground Weather Radar Station Tampa Bay Area, FL
   (on/off)   Help
weather_mapweather_map weather_map

Gulf Stream Current


Ad by Google

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.