Thursday, May25, 2017 L-36.com


Marine Weather and Tides
Punta Gorda, FL

Version 3.4
What's New / NOTES
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 6:34AMSunset 8:16PM Thursday May 25, 2017 2:19 PM EDT (18:19 UTC) Moonrise 5:37AMMoonset 7:15PM Illumination 0% Phase: New Moon; Moon at 0 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- 833 Am Edt Thu May 25 2017
.small craft advisory in effect until 2 pm edt this afternoon...
Today..Southwest winds around 20 knots then becoming west 10 to 15 knots in the afternoon. Seas 5 to 7 feet. Bay and inland waters choppy. A chance of showers and a slight chance of Thunderstorms in the morning, then a slight chance of showers in the afternoon.
Tonight..Northwest winds around 15 knots then becoming north around 5 knots after midnight. Seas 3 to 5 feet. Bay and inland waters a moderate chop.
Friday..Northeast winds around 5 knots then becoming northwest in the afternoon. Seas 2 to 3 feet. Bay and inland waters smooth.
Friday night..Northwest winds around 10 knots then becoming north around 5 knots after midnight. Seas 2 feet. Bay and inland waters a light chop.
Saturday..Northeast winds around 5 knots then becoming northwest around 10 knots in the afternoon. Seas 2 feet. Bay and inland waters a light chop.
Saturday night..Northwest winds around 10 knots diminishing to around 5 knots after midnight. Seas 2 feet or less. Bay and inland waters a light chop.
Sunday..North winds around 5 knots then becoming west in the afternoon. Seas 2 feet or less. Bay and inland waters smooth.
Sunday night..West winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop.
Monday..West winds around 5 knots. Seas 2 feet or less. Bay and inland waters smooth.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 833 Am Edt Thu May 25 2017
Synopsis..Gusty post-frontal westerly winds will continue over the coastal waters through this afternoon. Winds will gradually decrease below small craft advisory level by early afternoon and further decrease through the rest of the day. High pressure builds into the gulf of mexico which will produce lighter winds of 10 knots or less by early Friday and persisting through the weekend. No other marine impacts expected.

7 Day Forecast for Marine Location Near Punta Gorda, FL
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location: 26.83, -82.15     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 251814
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
214 pm edt Thu may 25 2017

Short term (rest of today - Friday)
An upper level ridge reaches from mexico to hudson bay while a low
aloft oh troughs southeastward... Across the mid-atlantic coast then
arcs back to northern fl. Surface high pressure centered over the
northern half of the gulf of mexico ridges north through the
mississippi valley and a front across the south half of the gulf
extends across south-central fl to the bahamas.

With time - the upper ridge slides out over the western gulf and
stretches to ontario while the upper low tracks to the canadian
maritimes and takes the trough with it... Although a weak short wave
trough hangs back across northern fl. The gulf high pressure tracks
to fl with the front moving into far south fl tonight then south of
there fri.

For this afternoon - a few showers remain in the far south but will
clear before evening. Considerable cloudiness continues but
will give way to clear mostly skies after sunset. The
robust and gusty winds of this morning continue to diminish.

The weak short wave trough has very little impact as the deep layer
ridging sliding toward the area from the gulf dominates. A stable
warm and dry air mass prevails. Model pwat values run around 0.5
inches for the northern 2 3s of the area and around 1 inch in the
south. Light flow gives way to onshore flow in an afternoon sea
breeze. Temperatures overnight will be below normal but warm back to
near normal by the afternoon.

Long term (Friday night - Thursday)
Mid level ridging will build in over the gulf on Saturday and then
shift east over the state on Sunday as an attendant surface high
across the central peninsula on Saturday sinks south to the southern
peninsula on Sunday. A dry subsident air mass under the deep layered
ridging will support ample sunshine across the entire forecast area
through the long holiday weekend with temperatures warming into the
lower to mid 90s over interior locations each afternoon, with upper
80s to around 90 along the coast due to the sea breeze, with lows
generally in the upper 60s to lower 70s.

During late Monday through Thursday the upper level ridge will shift
east into the atlantic and will become aligned southwest to
northeast from the south florida peninsula into the western
atlantic, as the surface high sets up from the western atlantic west
across the south-central peninsula. A southeast wind flow albeit
light around the surface high will allow for a slow increase in
moisture across the region through the period which will lead to
increasing chances (pops 20 to 30 percent on Tuesday, then 30-50
percent Wednesday and Thursday) for diurnal sea breeze driven
showers and thunderstorms each day during the afternoon and early
evening hours with the highest rain chances expected over inland
sections each afternoon as the east and west coast sea breeze
boundaries move inland.

Temperatures will range from the upper 80s to around 90 along the
coast, and lower 90s inland each day, with overnight lows mainly in
the lower 70s.

Aviation
25 18z-26 18z. Isold shra have just about exited the far south and
will leave out of the southern tafs although they could
still see some MVFR CIGS til sunset. Otherwise bkn- ovc
skies become skc-few overnight and through much of fri.

Somewhat robust northwesterly winds this afternoon become
light and variable overnight... With a light bay sea breeze
late in the period.

Marine
Robust winds continue to diminish although small craft
should exercise caution for the rest of the afternoon.

High pressure in the gulf moves over fl then meanders there
into the middle of next week with light winds dominated by
afternoon sea breezes.

Fire weather
High pressure builds in with a dry air mass... Mainly Fri and sat.

The minimum rh drops below 35 percent Fri and Sat afternoons but
with only limited durations and with low erc values red
flag criteria is not expected to be reached. Moisture begins
to return Sun with no low rh concerns anticipated for the
next few days.

Preliminary point temps pops
Tpa 69 87 70 88 0 0 0 0
fmy 70 91 72 93 0 0 0 0
gif 65 91 67 94 0 0 0 0
srq 69 83 69 88 0 0 0 0
bkv 58 87 59 90 0 0 0 0
spg 71 85 73 87 0 0 0 0

Tbw watches warnings advisories
Fl... None.

Gulf waters... None.

Short term aviation marine fire weather... 09 rude
mid term long term decision support... 57 mcmichael


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FMRF1 - 8725520 - Fort Myers, FL 19 mi55 min W 8 G 13 80°F 85°F1012.5 hPa
VENF1 - Venice, FL 23 mi79 min WNW 13 G 16 78°F 82°F1012.7 hPa (+1.6)64°F
42013 - C10 - Navy-2 47 mi109 min NW 14 G 18 80°F

Wind History for Naples, FL
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S16
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Punta Gorda, Charlotte County Airport, FL11 mi26 minNW 910.00 miMostly Cloudy84°F66°F55%1013 hPa
Venice Municipal Airport, FL23 mi24 minWNW 1210.00 miMostly Cloudy81°F62°F54%1012.9 hPa
Fort Myers, Page Field, FL23 mi26 minNW 1210.00 miMostly Cloudy83°F72°F70%1011.8 hPa

Wind History from PGD (wind in knots)
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Last 24hrSW23
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SW11SW12S7SW10SW15
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SW14SW14SW11W9SW10SW3W7W11NW9NW11NW9
1 day agoSW13
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SW13SW17SW15SW15SW10SW8S6S7SW5S7S7S7S7S8S9S11S15
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2 days agoW11W12SW14W12SW12SW9W4S3S3SE3SE4SE3SE6SE4SE7S5SE7S6S6S12S14SW12SW14S14
G19

Tide / Current Tables for Placida, Gasparilla Sound, Florida
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Placida
Click for Map
Thu -- 01:43 AM EDT     1.14 feet High Tide
Thu -- 06:37 AM EDT     Sunrise
Thu -- 06:37 AM EDT     Moonrise
Thu -- 06:37 AM EDT     0.78 feet Low Tide
Thu -- 12:11 PM EDT     1.87 feet High Tide
Thu -- 03:46 PM EDT     New Moon
Thu -- 08:14 PM EDT     Moonset
Thu -- 08:15 PM EDT     Sunset
Thu -- 08:23 PM EDT     -0.32 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.91.11.11.110.90.80.80.91.21.51.71.91.81.61.30.90.50.2-0.2-0.3-0.3-0.10.3

Tide / Current Tables for Boca Grande Pass, Charlotte Harbor, Florida Current
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Boca Grande Pass
Click for Map
Thu -- 03:59 AM EDT     -0.00 knots Slack
Thu -- 05:38 AM EDT     -0.55 knots Max Ebb
Thu -- 06:37 AM EDT     Sunrise
Thu -- 06:37 AM EDT     Moonrise
Thu -- 07:12 AM EDT     0.00 knots Slack
Thu -- 10:56 AM EDT     2.74 knots Max Flood
Thu -- 01:47 PM EDT     -0.00 knots Slack
Thu -- 03:46 PM EDT     New Moon
Thu -- 05:41 PM EDT     -3.74 knots Max Ebb
Thu -- 08:14 PM EDT     Moonset
Thu -- 08:15 PM EDT     Sunset
Thu -- 09:32 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.92.51.70.8-0-0.5-0.5-0.10.61.62.42.72.31.2-0.3-1.8-3-3.6-3.7-3.3-2.3-0.80.72.1

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 (14,3,4,5)
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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.