Monday, January22, 2018 L-36.com


Marine Weather and Tides
Otter Creek, 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 7:20AMSunset 6:00PM Monday January 22, 2018 9:16 PM EST (02:16 UTC) Moonrise 10:52AMMoonset 11:11PM Illumination 38% Phase: Waxing Crescent; Moon at 6 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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GMZ850 Coastal Waters From Tarpon Springs To Suwannee River Fl Out 20 Nm- 848 Pm Est Mon Jan 22 2018
Rest of tonight..South winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop. Areas of sea fog possible. Numerous showers and isolated Thunderstorms.
Tuesday..Southwest winds 5 to 10 knots then becoming west around 15 knots early in the afternoon, then becoming northwest 5 to 10 knots late in the afternoon. Seas 2 feet. Bay and inland waters a moderate chop. Areas of sea fog in the morning. Scattered showers and isolated Thunderstorms in the morning.
Tuesday night..North winds around 10 knots. Seas 2 to 3 feet. Bay and inland waters a light chop.
Wednesday..North winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Wednesday night..North winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Thursday..Northeast winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Thursday night..Northeast winds around 15 knots. Seas 2 feet. Bay and inland waters a moderate chop.
Friday..East winds around 15 knots. Seas 2 feet. Bay and inland waters a moderate chop.
Friday night..East winds around 15 knots. Seas 2 feet. Bay and inland waters a moderate chop.
Saturday..East winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop. A slight chance of showers in the afternoon.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 848 Pm Est Mon Jan 22 2018
Synopsis..Southeast winds will shift to the south the rest of tonight ahead of an approaching cold front. Expect areas of showers and isolated Thunderstorms tonight into early Tuesday ahead of this boundary, with the greatest coverage expected from tampa bay northward. Winds will become north to northeast late Tuesday into Wednesday in the wake of the front, with speeds increasing to cautionary levels at times. Some areas of sea fog will be possible over the coastal waters through Tuesday and mariners should be ready for some reduced visibilities. Any lingering sea fog will get scoured out Tuesday afternoon and night as cooler and drier air moves into the region in the wake of the cold front.

7 Day Forecast for Marine Location Near Otter Creek, FL
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location: 29.2, -82.66     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 230129
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
829 pm est Mon jan 22 2018

Update
Increasing ascent associated with a short wave trough over
the east-central gulf this evening ahead of the cold front
which is now over the central florida panhandle is helping
to set off showers over the forecast area and adjacent gulf
waters early this evening. As this features continues to push
east expect to see an increase in coverage of showers across
the region the remainder of the evening. Cooler mid level
temperatures (-12c at 500mb via 00z RAOB data) will support
adequate low mid level instability which will support the
possibility of a few thunderstorms as well.

During the remainder of the night into Tuesday sufficient
moisture combined with frontogenetic forcing along and
ahead of the cold front should support additional showers
and isolated storms moving in from the gulf as the front
approaches and moves south through the region through the
period. Sufficient low level convergence coupled with
increasing divergence aloft may support some periods of
locally heavy downpours in some locations as well as the
above mentioned features affect the region. Cooler and drier
air in the wake of the front should bring an end to the
rain across the nature coast during Tuesday afternoon, with
the rain gradually ending across central and southern zones
during Tuesday evening as the front moves to the south and
eventually stalls out across the southern peninsula or
florida straits on Wednesday as high pressure builds in from
the north. As mentioned in earlier discussions there will
be the possibility of some sea fog development over the gulf
waters the remainder of tonight, however overall coverage
and direct impacts from it remains a bit uncertain at this
time, so for now will keep mention of it in the coastal
waters forecasts. Ongoing zone forecast is in good shape
with no evening update required at this time.

Aviation
Vfr this evening will deteriorate into the MVFR range with
brief ifr between 02-06z as showers and embedded tsra along
with lowering CIGS vsbys develop over the region ahead of a
cold front, with prevailing MVFR CIGS vsbys and isolated
ifr conditions continuing through the remainder of the taf
forecast period. Southeast to south winds in the 5 to 7 knot
range this evening will become south to southwest at 8 to
10 knots after 15z, then becoming west-northwest at 8 to 10
knots after 21z with the frontal passage. Higher winds gusts
will be possible in the vicinity of tsra.

Marine
South winds in the 10 to 15 knot range over the gulf waters
this evening will become south to southwest later tonight
into early Tuesday morning as the cold front approaches from
the west. Winds will shift into the northwest and north and
then northeast late Tuesday into Wednesday in the wake of
the front, with speeds increasing to cautionary levels at
times. As mentioned above the potential exists for some sea
fog the remainder of the night into Tuesday morning ahead of
the cold front as warm and moist air moves over the cooler
shelf waters, however its overall impacts remain uncertain
at this time, so all mariners should remain on the alert
for the possibility of lower visibilities and possible
advisory issuances later tonight through early Tuesday if
conditions warrant.

Drier and cooler air in the wake of the front should help
to scour out any lingering fog over the coastal waters by
Tuesday evening with improving conditions expected. Ongoing
forecast is on track and no changes are planned for the next
forecast issuance around 9 pm.

Tbw watches warnings advisories
Fl... None.

Gulf waters... None.

Update aviation marine... 57 mcmichael
upper air... 42 norman
decision support... 18 fleming


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CDRF1 - Cedar Key, FL 20 mi77 min SW 9.9 G 15 58°F 1017.6 hPa (+0.5)57°F
KTNF1 - Keaton Beach, FL 65 mi77 min SSE 14 G 17 65°F 1016.2 hPa (-0.6)

Wind History for Cedar Key, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Crystal River Airport, FL23 mi22 minS 37.00 miLight Rain64°F62°F94%1017.9 hPa
Ocala International Airport - Jim Taylor Field, FL23 mi26 minSSW 310.00 miLight Rain67°F63°F87%1018.1 hPa

Wind History from CGC (wind in knots)
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Last 24hrE3E5E5E4E4E3E4E3CalmCalmE3CalmSE4SE6SE10
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1 day agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmE4E5E5NE7NE5NE6NE6E5E5E5CalmE3E3
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmE3Calm--N3--CalmN3CalmCalmCalm

Tide / Current Tables for Withlacoochee River entrance, Florida
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Withlacoochee River entrance
Click for Map
Mon -- 04:33 AM EST     2.89 feet High Tide
Mon -- 07:23 AM EST     Sunrise
Mon -- 10:52 AM EST     Moonrise
Mon -- 11:53 AM EST     -0.04 feet Low Tide
Mon -- 05:23 PM EST     2.93 feet High Tide
Mon -- 06:01 PM EST     Sunset
Mon -- 11:11 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.611.72.42.82.92.62.11.50.90.40.1-00.311.82.52.92.92.62.21.71.20.8

Tide / Current Tables for Florida Power, Florida
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Florida Power
Click for Map
Mon -- 04:06 AM EST     3.11 feet High Tide
Mon -- 07:23 AM EST     Sunrise
Mon -- 10:52 AM EST     Moonrise
Mon -- 11:03 AM EST     -0.09 feet Low Tide
Mon -- 04:50 PM EST     3.28 feet High Tide
Mon -- 06:01 PM EST     Sunset
Mon -- 11:11 PM EST     Moonset
Mon -- 11:38 PM EST     0.36 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.71.42.22.83.132.61.91.20.60.1-0.10.10.81.62.53.13.33.12.61.91.30.70.4

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 (21,6,7,8)
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Ground Weather Radar Station Jacksonville, 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.