Tuesday, October17, 2017 L-36.com


Marine Weather and Tides
Punta Gorda, 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 7:28AMSunset 6:58PM Tuesday October 17, 2017 7:15 AM EDT (11:15 UTC) Moonrise 4:24AMMoonset 5:00PM Illumination 9% Phase: Waning Crescent; Moon at 27 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- 340 Am Edt Tue Oct 17 2017
Today..East winds 5 to 10 knots increasing to around 15 knots late in the morning, then becoming northeast 5 to 10 knots in the afternoon. Seas 2 feet. Bay and inland waters a moderate chop. Isolated Thunderstorms.
Tonight..Northeast winds 10 to 15 knots increasing to around 20 knots late in the evening, then diminishing to 10 to 15 knots after midnight. Seas 2 to 3 feet. Bay and inland waters choppy. Scattered showers and isolated Thunderstorms in the evening, then isolated showers after midnight.
Wednesday..Northeast 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. Isolated showers in the morning. Scattered showers in the afternoon.
Wednesday night..Northeast winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop. Scattered showers in the evening. Isolated Thunderstorms.
Thursday..Northeast winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop. Isolated Thunderstorms.
Thursday night..Northeast winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop. Isolated Thunderstorms in the evening.
Friday..Northeast winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop. Isolated Thunderstorms.
Friday night..East winds around 20 knots diminishing to 10 to 15 knots after midnight. Seas 2 to 3 feet. Bay and inland waters choppy. Isolated Thunderstorms.
Saturday..East winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop. Scattered showers and isolated Thunderstorms.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 340 Am Edt Tue Oct 17 2017
Synopsis.. Cautionary to borderlined advisory winds will persist over the northern waters today behind a stalled front. As high pressure intensifies north of the waters today and tonight, cautionary to advisory level winds are forecast to spread southward to include most of the coastal waters. Breezy northeast winds coupled with building seas will likely generate hazardous boating conditions, especially over the offshore waters tonight into early Wednesday morning. While winds may slacken somewhat during the day Wednesday, easterly wind surges will likely result in periods of cautionary to advisory level winds each night and early morning through the latter half of the week. This weekend, winds may improve a bit as high pressure finally slips eastward, resulting in a relaxed gradient over the waters.

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 170736
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
336 am edt Tue oct 17 2017

Short term (today and Wednesday)
The upper pattern across the CONUS is defined by broad
upper ridging over the eastern pacific into the southwest
u.S. And broad upper troughing from the northern plains
southward into the eastern gulf of mexico. Within this
trough, a substantial shortwave trough has moved off the mid
atlantic and new england coasts. A trailing cold front
continues to decelerate this morning, extending from the
northern gulf of mexico into the florida big bend and
southern georgia. This feature, and a building surface high
will be the dominant weather features through tomorrow.

As the shortwave trough departs, the energy driving the
cold front south and east will depart, forcing it to stall
later today over far northern florida. Areas north of the
front will get a fresh taste of fall weather with much drier
and cooler air settling in. Over much of the florida
peninsula, we will see slightly cooler temperatures due to
abundant cloud cover, but we will have to wait a bit longer
for a true taste of fall, as muggy conditions will prevail.

A smattering of showers mixed with the occasional storm will
drift from northeast to southwest across the peninsula
today with the greater chances for rain over interior and
eastern parts of the peninsula.

Expect mainly dry conditions overnight tonight. As slightly
drier air spills in from the north, lows will be a bit
cooler than the last few nights, ranging from the lower to
mid 60s north along the nature coast, to the lower to mid
70s elsewhere.

High pressure will continue to build over the southeast
u.S. Tonight into early Wednesday, with prevailing
east northeast flow. This will bring episodes of heavy
rainfall to the florida atlantic coast, but as moisture is
gradually squeezed out from east to west, lesser chances for
rain will reside over interior and western portions of the
peninsula. Still, a chance of a few showers will exist, with
the greater potential remaining over interior middle spinal
parts of the peninsula. High temperatures will begin to
rebound tomorrow with highs reaching the middle and upper
80s.

Long term (Wednesday night through Monday)
Wednesday night and Thursday, a week mid level trough over
florida will gradually shift east as an amplified ridge
builds into the gulf of mexico and deep south. A weak
frontal boundary associated with this trough will be stalled
out across the northern portion of the florida peninsula,
with a dry air mass filling in to the north of the boundary.

This will keep rain chances limited over the nature coast
Thursday, but modest moisture south of the boundary will
still allow for isolated to scattered showers and
thunderstorms from around tampa bay south.

Friday and Saturday, the ridging aloft will shift east and
move over florida, bringing subsidence and drier air into
the region, limiting rain chances even further. Friday in
particular looks to be the driest day during the period,
with only 10 to 20 percent rain coverage forecast. By
Sunday, the mid level ridge will have moved east of florida
as an amplified trough crosses the mississippi river valley,
with a strong surface ridge setting up off the coast of new
england. This will allow the low level flow to turn to
southwesterly, bringing a quick return of moisture to the
area. As a result, more scattered showers and thunderstorms
are forecast for Sunday and Monday.

Temperatures will remain near to a few degrees above
normal, with highs in the 80s and lows generally from the
mid 60s to low 70s

Aviation (06z tafs)
A remnant front will stall north of terminals. A cluster of
showers and storms in progress over northeast florida will
build southward overnight, with possible impacts to klal,
where vcsh is maintained. BrokenVFR CIGS to prevail
overnight, thought patchy MVFR CIGS and vsbys due to fog may
occur most anywhere. Light and variable winds will become
northeasterly by sunrise. Scattered showers will move from
northeast to southwest across the region.

Marine
Cautionary to borderlined advisory winds will persist over
the northern waters today. As high pressure intensifies
north of the waters today and tonight, cautionary to
advisory level winds are forecast to spread southward to
include most of the coastal waters. Breezy northeast winds
coupled with building seas will likely generate hazardous
boating conditions, especially over the offshore waters
tonight into early Wednesday morning. While winds may
slacken somewhat during the day Wednesday, easterly wind
surges will likely result in periods of cautionary to
advisory level winds each night and early morning through
the latter half of the week. Over the weekend, winds may
improve a bit as high pressure finally slips eastward,
resulting in a relaxed gradient over the waters.

Fire weather
A cold front will stall north of the region today, bringing
waves of showers and occasional thunderstorms. High
pressure building in north of the region will result in
northeast winds much of this week. This will allow atlantic
moisture to stream across the peninsula with daily chances
for showers. As moisture will remain high, and relatively
humidities will remain above critical levels, no fire
weather concerns are expected.

Preliminary point temps pops
Tpa 82 70 85 71 30 10 30 10
fmy 85 72 86 71 40 30 40 10
gif 82 70 83 69 50 30 40 10
srq 84 72 86 71 20 10 30 10
bkv 80 68 84 68 20 10 30 10
spg 81 71 83 72 30 10 30 10

Tbw watches warnings advisories
Fl... None.

Gulf waters... None.

Short term aviation marine fire weather... 84 austin
mid term long term decision support... 18 fleming


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FMRF1 - 8725520 - Fort Myers, FL 19 mi46 min ESE 4.1 G 5.1 76°F 87°F1013.9 hPa
VENF1 - Venice, FL 23 mi76 min E 7 G 8 75°F 83°F1014.2 hPa (-0.0)74°F

Wind History for Naples, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Punta Gorda, Charlotte County Airport, FL11 mi23 minNE 68.00 miFair73°F72°F96%1015.5 hPa
Venice Municipal Airport, FL23 mi21 minNE 610.00 mi75°F73°F94%1014.9 hPa
Fort Myers, Page Field, FL23 mi23 minN 07.00 miFair73°F73°F100%1014.5 hPa

Wind History from PGD (wind in knots)
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Last 24hrN3Calm3Calm--Calm3N7N8NE7CalmW4NW4NW4E5NE3NE4SE4E4E4NE3CalmCalmNE6
1 day agoNE3NE4NE76E6NE73CalmW5W8N11NW3N3NE4N4CalmNE4NE3E6E3E4E4E4Calm
2 days agoNE5NE9E8E7E9E10E9E11NE15E17E9E11E6E7E5NE4NE5NE5NE3NE3CalmNE4NE5NE5

Tide / Current Tables for Placida, Gasparilla Sound, Florida
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Placida
Click for Map
Tue -- 05:24 AM EDT     Moonrise
Tue -- 06:12 AM EDT     0.54 feet Low Tide
Tue -- 07:29 AM EDT     Sunrise
Tue -- 12:01 PM EDT     1.53 feet High Tide
Tue -- 06:00 PM EDT     Moonset
Tue -- 06:36 PM EDT     0.46 feet Low Tide
Tue -- 06:58 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.41.41.210.80.60.50.60.811.31.51.51.51.31.10.90.60.50.50.60.91.11.4

Tide / Current Tables for Boca Grande Pass, Charlotte Harbor, Florida Current
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Boca Grande Pass
Click for Map
Tue -- 01:47 AM EDT     -0.00 knots Slack
Tue -- 04:31 AM EDT     -1.81 knots Max Ebb
Tue -- 05:24 AM EDT     Moonrise
Tue -- 07:18 AM EDT     0.00 knots Slack
Tue -- 07:29 AM EDT     Sunrise
Tue -- 10:40 AM EDT     2.36 knots Max Flood
Tue -- 01:57 PM EDT     -0.00 knots Slack
Tue -- 04:50 PM EDT     -2.02 knots Max Ebb
Tue -- 06:00 PM EDT     Moonset
Tue -- 06:58 PM EDT     Sunset
Tue -- 07:42 PM EDT     0.00 knots Slack
Tue -- 10:51 PM EDT     2.33 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.80.8-0.2-1.2-1.7-1.7-1.2-0.30.71.72.22.31.91-0.1-1.1-1.8-2-1.6-0.80.31.42.12.3

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 (7,2,3,4)
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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.