Thursday, March23, 2017 L-36.com


Marine Weather and Tides
Punta Rassa, FL

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 7:26AMSunset 7:42PM Thursday March 23, 2017 4:21 AM EDT (08:21 UTC) Moonrise 3:19AMMoonset 2:32PM Illumination 19% Phase: Waning Crescent; Moon at 25 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- 402 Am Edt Thu Mar 23 2017
.small craft exercise caution tonight...
Today..Northeast winds around 10 knots then becoming north 5 to 10 knots early in the afternoon. Seas 2 feet. Bay and inland waters a light chop. A chance of showers and a slight chance of Thunderstorms in the afternoon.
Tonight..East winds 15 to 20 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop. A chance of showers and a slight chance of Thunderstorms in the evening.
Friday..East winds around 15 knots diminishing to 5 to 10 knots in the afternoon. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Friday night..East winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Saturday..East winds around 15 knots then becoming southeast 5 to 10 knots early in the afternoon, then becoming southwest around 5 knots late in the afternoon. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Saturday night..North winds around 5 knots then becoming northeast around 5 knots late in the evening, then becoming east around 10 knots after midnight. Seas 2 feet or less. Bay and inland waters a light chop.
Sunday..East winds around 10 knots then becoming southeast around 5 knots early in the afternoon, then becoming south late in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop.
Sunday night..Northwest winds around 5 knots then becoming east after midnight. Seas 2 feet or less. Bay and inland waters smooth.
Monday..East winds around 10 knots then becoming west around 5 knots 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- 402 Am Edt Thu Mar 23 2017
Synopsis..A frontal boundary will move through the area today with increasing winds and seas tonight. Conditions will improve on Friday before a nocturnal surge brings winds back up to cautionary levels Friday night. High pressure will then build in across the waters with benign conditions expected this weekend through early next week.

7 Day Forecast for Marine Location Near Punta Rassa, FL
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location: 26.5, -82.02     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 230735
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
335 am edt Thu mar 23 2017

Short term (today - Friday)
Currently at the surface, a weak backdoor cold front is pushing
southwest into the florida peninsula, fueling a few bands of low
clouds moving through the area in the moist air mass ahead of the
front. While this front won't lead to a significant cool down, highs
this afternoon are expected to be 5-10 degrees cooler than
yesterday, largely due to the increased cloud cover associated with
the front. The bigger impacts from the front today will be chances
for showers and storms and breezy winds. As moisture increases along
and just ahead of the frontal passage, scattered showers will spread
southwest through much of the area later this afternoon and into the
early evening hours before tapering off by Friday morning the highest
rain chances are generally expected over interior regions and in
southwest florida. Cool mid level temperatures will allow a few
thunderstorms to develop as well. The biggest threat from these
storms will be strong wind gusts, although it will not be impossible
to see some small hail if a tall enough updraft develops. As strong
high pressure fills in behind the front, sustained winds this
afternoon over the interior are forecast to peak at around 15-20 mph,
which is just below the criteria for a lake wind advisory.

Tonight and Friday, mid level ridging will build in over the gulf,
as the atlantic surface high pressure ridges across the florida
peninsula. Lows tonight won't be significantly cooler, generally
bottoming out from the mid 50s to low 60s. Temperatures will warm
back up into the upper 70s and low 80s Friday under partly cloudy
skies. Winds will be lighter than today, but will still be on the
breezy side.

Long term (Friday night - Thursday)
An amplified upper level pattern continues over the conus. A closed
upper low sits over the bahamas while upper level ridging extends
from the central gulf of mexico northeastward to the mid-atlantic
region. Another closed upper low sits over kansas and extends
troughing southward through texas. This pattern shifts east through
the weekend, with troughing extending over florida by Sunday. By
Tuesday next week, an upper level low moves north of the great lakes
and extends troughing south over the eastern u.S. And over florida.

A more zonal pattern sets up over the region by Wednesday next week.

On the surface, strong high pressure sits just north of bermuda and
ridges southwest over florida and into the gulf of mexico. This will
keep a northeast through southeast wind flow and rain-free
conditions over florida through the end of the week. Another area of
high pressure develops in the northeast gulf of mexico by Sunday and
will keep benign weather conditions over the area through the middle
of next week. Temperatures will remain a few degrees above normal
with daytime highs in the low 80s and overnight lows in the upper
50s to low 60s.

Aviation
A few patches of MVFR or brief ifr ceilings will be possible through
the rest of the night. A few patches of fog cannot be ruled out as
well, mainly over southwest florida. Late this morning and into the
afternoon, scattered showers will spread southwest through the area,
potentially causing additional periods of MVFR or ifr conditions
before clearing out after sunset.

Marine
A backdoor cold front will move through the coastal waters from the
northeast to southwest today. Winds are expected to pick up late this
afternoon over the the northeastern gulf, potentially reaching
exercise caution levels north of tarpon springs. Behind the front,
strong high pressure settling in near bermuda will ridge into the
eastern gulf, setting up a tight pressure gradient across the coastal
waters. Winds will increase to advisory levels over the offshore
waters tonight, with exercise caution headlines expected for the
nearshore zones. Conditions will briefly improve Friday before an
easterly surge elevates winds to cautionary or possibly advisory
levels again late Friday night. Benign conditions will then take over
for the weekend and into early next week as surface high pressure
holds across the waters.

Fire weather
A weak cold front will move in from the northeast today, bringing
chances for rain and slightly drier air. Relative humidity
will drop to around 40 percent in many locations Friday afternoon,
however no critical humidity levels are expected through the upcoming
weekend. Breezy winds will lead to elevated dispersion indices this
afternoon and again Friday afternoon.

Preliminary point temps/pops
Tpa 78 61 79 62 / 30 10 0 0
fmy 81 62 80 61 / 40 10 10 0
gif 76 59 78 59 / 40 10 0 0
srq 77 61 77 61 / 30 10 0 0
bkv 76 58 78 56 / 30 0 0 0
spg 77 62 78 64 / 20 10 0 0

Tbw watches/warnings/advisories
Fl... None.

Gulf waters... Small craft advisory from 8 pm this evening to 3 am edt
Friday for 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/aviation/marine/fire weather... 18/fleming
mid term/long term/decision support... 74/wynn


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FMRF1 - 8725520 - Fort Myers, FL 13 mi51 min NW 6 G 8 66°F 76°F1019.5 hPa
NPSF1 - 8725110 - Naples, FL 28 mi51 min 73°F1019.9 hPa
RKXF1 - Rookery Bay Reserve, FL 35 mi96 min NNW 2.9 63°F 61°F
VENF1 - Venice, FL 46 mi81 min NNW 6 G 7 67°F 69°F1020.1 hPa (+0.0)65°F

Wind History for Naples, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fort Myers, Page Field, FL10 mi28 minN 47.00 miFair67°F64°F91%1019.8 hPa
Fort Myers, Southwest Florida International Airport, FL14 mi28 minN 08.00 miFair65°F62°F90%1019.6 hPa

Wind History from FMY (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmNW6NW10NW12
G16
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W12W9W11W10W7W7W6NW5NW5N8N6N6N4
1 day agoCalmE3CalmCalmCalm3SE5536NE8W14W10W12W9NW6W7W6W4W3S3S3CalmCalm
2 days agoNE4NE5NE3NE5NE6NE5NE7SE8NE7NE8NE7SE6W12W11W9W8NW5NW5N5NE3NE4NE3E3E3

Tide / Current Tables for Punta Rassa, San Carlos Bay, Florida
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Punta Rassa
Click for Map
Thu -- 04:18 AM EDT     Moonrise
Thu -- 04:50 AM EDT     -0.14 feet Low Tide
Thu -- 07:28 AM EDT     Sunrise
Thu -- 12:29 PM EDT     1.47 feet High Tide
Thu -- 03:32 PM EDT     Moonset
Thu -- 04:18 PM EDT     1.14 feet Low Tide
Thu -- 07:40 PM EDT     Sunset
Thu -- 10:24 PM EDT     1.94 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.410.60.2-0.1-0.1-00.20.50.91.11.41.51.51.41.21.11.21.31.51.71.81.91.9

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
Thu -- 03:04 AM EDT     -1.10 knots Max Ebb
Thu -- 04:18 AM EDT     Moonrise
Thu -- 06:11 AM EDT     0.00 knots Slack
Thu -- 07:28 AM EDT     Sunrise
Thu -- 10:34 AM EDT     0.91 knots Max Flood
Thu -- 02:24 PM EDT     -0.00 knots Slack
Thu -- 03:32 PM EDT     Moonset
Thu -- 03:56 PM EDT     -0.31 knots Max Ebb
Thu -- 05:30 PM EDT     0.00 knots Slack
Thu -- 07:40 PM EDT     Sunset
Thu -- 08:05 PM EDT     0.63 knots Max Flood
Thu -- 11:08 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.5-0.7-1-1.1-1-0.6-0.10.40.70.80.90.90.80.50.2-0.2-0.3-0.20.20.50.60.50.30

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 (4,6,7,8)
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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.