Friday, January19, 2018 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 7:15AMSunset 6:02PM Friday January 19, 2018 12:47 AM EST (05:47 UTC) Moonrise 8:58AMMoonset 8:26PM Illumination 6% Phase: Waxing Crescent; Moon at 2 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- 858 Pm Est Thu Jan 18 2018
Rest of tonight..Northeast winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Friday..Northeast winds around 15 knots then becoming north 5 to 10 knots in the afternoon. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Friday night..North winds around 10 knots then becoming northeast in the late evening and overnight. Seas 2 feet. Bay and inland waters a light chop.
Saturday..Northeast winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop.
Saturday night..Northeast winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop. A slight chance of showers.
Sunday..Northeast winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop.
Sunday night..East winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop.
Monday..Southeast winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop. A chance of showers.
Monday night..Southeast winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop. A chance of showers.
Tuesday..Northeast winds around 5 knots then becoming north around 10 knots in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop. A slight chance of showers.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 858 Pm Est Thu Jan 18 2018
Synopsis..Winds and seas will remain calm through the remainder of the week as high pressure dominates our weather pattern and northeast/east winds prevail. Another cold front approaches the area by the early part of next week and as high pressure builds to the north and increases the pressure gradient, headlines may be possible. The potential for sea fog will also exist ahead of this front as winds veer more southerly and dewpoints increase back into the 60s.

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


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 190525
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
1225 am est Fri jan 19 2018

Aviation (06z tafs)
Vfr conditions with mostly clear skies. Light northeast
winds to shift to the northwest this afternoon for terminals
near the coast, then back to the northeast by 00z.

84 austin

Prev discussion issued 852 pm est Thu jan 18 2018

Another night of freezing temperatures in parts of west
central florida...

update...

it was a rather chilly afternoon across west central florida
as none of us were able to climb out of the 50s. With the
loss of daytime heating, temperatures will gradually fall
through the night but nowhere near as abrupt as last night.

Low temps remain a bit challenge overnight. While efficient
radiational cooling will take place, a few issues may
prohibit halt cooling... Forecast soundings continue to show
winds veering overnight with warmer, easterly winds at
approx 2000 feet potentially mixing to the surface and
limiting the cooling. Second, satellite observations through
the afternoon show high cirrus clouds streaming into the
area, generally south of the i-4 corridor. Some models have
struggled to pick up on this throughout the day and if these
clouds thicken, this will also limit radiational cooling
south of the nature coast. With that said, temperatures
have not been adjusted this evening, especially since
uncertainty exists to warrant a significant change...

a couple of other changes were made to the ongoing forecast,
however. First, sky cover was increased (to account for the
high cirrus). Additionally, current observational trends and
overnight guidance suggest slightly higher dewpoints - so
these were nudged higher. For this reason, frost was
introduced into the forecast for inland locations and
especially the nature coast.

Aviation...

prevailingVFR conditions through the TAF period with
varying winds out of the northeast to northwest. High
cirrus will stream across the region from the southwest with
the thickest clouds residing over our southern terminals.

Marine...

winds and seas will remain calm through the remainder of the
week as high pressure dominates our weather pattern and
northeast east winds prevail. Another cold front approaches
the area by the early part of next week and as high pressure
builds to the north and increases the pressure gradient,
headlines may be possible. The potential for sea fog will
also exist ahead of this front as winds veer more southerly
and dewpoints increase back into the 60s.

Preliminary point temps pops
Tpa 62 47 68 55 0 0 0 20
fmy 68 52 72 57 0 0 10 20
gif 64 46 70 54 0 0 0 20
srq 62 49 68 56 0 0 10 20
bkv 61 39 69 50 0 0 0 10
spg 61 49 68 55 0 0 10 20

Tbw watches warnings advisories
Fl... Hard freeze warning until 9 am est this morning for
coastal citrus-coastal hernando-coastal levy-inland
citrus-inland hernando-inland levy-inland pasco-
sumter.

Freeze warning until 9 am est this morning for coastal
pasco-desoto-hardee-highlands-inland hillsborough-
inland manatee-inland sarasota-polk.

Gulf waters... None.

Prior discussion...

update aviation marine ... 42 norman
upper air... 18 fleming
decision support... 69 close


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FMRF1 - 8725520 - Fort Myers, FL 19 mi48 min NNE 7 G 9.9 46°F 61°F1027 hPa (+0.5)
NPSF1 - 8725110 - Naples, FL 25 mi48 min NNE 5.1 G 7 61°F1026.6 hPa (+0.4)
RKXF1 - Rookery Bay Reserve, FL 33 mi63 min 45°F 38°F
VENF1 - Venice, FL 48 mi48 min NNE 8.9 G 11 43°F 57°F1027.8 hPa (+0.0)33°F

Wind History for Naples, FL
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fort Myers, Page Field, FL16 mi55 minNNE 68.00 miFair46°F36°F68%1027.3 hPa
Fort Myers, Southwest Florida International Airport, FL19 mi55 minNNE 510.00 miFair44°F36°F73%1027.1 hPa

Wind History from FMY (wind in knots)
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Last 24hrN9N9N8N10
G17
N9N10N10N10NE13NE9NE13
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NE11N46N10E63E4NE5NE5N5NE7N5N6
1 day agoNE6NE4CalmNE5CalmCalmNE5NE5NE4NE4N5N8NW8W12NW14NW10W12NW13NW15NW12
G19
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G19
2 days agoNE10NE9NE9NE7NE5NE6NE6NE4NE7E9E11E9
G16
E8NE7NE8NE11N11NE6NE5NE6NE5NE5E4NE4

Tide / Current Tables for Point Ybel, San Carlos Bay Entrance, Florida
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Point Ybel
Click for Map
Fri -- 12:19 AM EST     2.45 feet High Tide
Fri -- 07:16 AM EST     Sunrise
Fri -- 08:32 AM EST     -0.62 feet Low Tide
Fri -- 08:57 AM EST     Moonrise
Fri -- 02:31 PM EST     1.45 feet High Tide
Fri -- 06:00 PM EST     Sunset
Fri -- 07:37 PM EST     0.86 feet Low Tide
Fri -- 08:26 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.42.42.21.81.20.60.1-0.3-0.6-0.6-0.30.20.81.21.41.41.31.210.90.91.11.41.9

Tide / Current Tables for Point Ybel (0.4 Mi. NW of), Florida Current
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Point Ybel (0.4 Mi. NW of)
Click for Map
Fri -- 01:53 AM EST     -0.00 knots Slack
Fri -- 06:28 AM EST     -1.40 knots Max Ebb
Fri -- 07:16 AM EST     Sunrise
Fri -- 08:57 AM EST     Moonrise
Fri -- 09:49 AM EST     0.00 knots Slack
Fri -- 12:34 PM EST     1.25 knots Max Flood
Fri -- 05:39 PM EST     -0.00 knots Slack
Fri -- 06:00 PM EST     Sunset
Fri -- 07:39 PM EST     -0.30 knots Max Ebb
Fri -- 08:26 PM EST     Moonset
Fri -- 09:10 PM EST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
10.5-0.1-0.6-1-1.2-1.4-1.4-1.1-0.60.10.81.21.210.70.40.1-0.1-0.3-0.3-0.10.40.8

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 (0,6,7,8)
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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.