Wednesday, September20, 2017 L-36.com


Marine Weather and Tides
Siesta Key, 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 7:17AMSunset 7:29PM Wednesday September 20, 2017 3:38 AM EDT (07:38 UTC) Moonrise 6:35AMMoonset 7:04PM Illumination 0% Phase: New Moon; Moon at 29 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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GMZ853 Coastal Waters From Englewood To Tarpon Springs Fl Out 20 Nm- 849 Pm Edt Tue Sep 19 2017
Rest of tonight..North winds around 10 knots then becoming northeast 5 to 10 knots late in the evening, then becoming east after midnight. Seas 2 feet. Bay and inland waters a moderate chop.
Wednesday..Northeast winds around 10 knots then becoming north in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop.
Wednesday night..North winds around 10 knots then becoming east in the late evening and overnight. Seas 2 feet. Bay and inland waters a light chop. Isolated showers in the evening.
Thursday..Northeast winds around 10 knots then becoming north late in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop. Isolated showers in the afternoon.
Thursday night..North winds around 10 knots then becoming east in the late evening and overnight. Seas 2 feet. Bay and inland waters a light chop. Isolated showers.
Friday..Northeast winds around 10 knots then becoming north late in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop. Isolated showers in the morning, then scattered showers in the afternoon.
Friday night..Northeast winds 5 to 10 knots then becoming east around 15 knots in the late evening and overnight. Seas 2 feet. Bay and inland waters a moderate chop. Scattered showers in the evening, then isolated showers after midnight.
Saturday..Northeast winds around 15 knots diminishing to 5 to 10 knots in the afternoon. Seas 2 feet. Bay and inland waters a moderate chop. Scattered showers.
Saturday night..Northeast winds around 15 knots. Seas 2 feet. Bay and inland waters a moderate chop. Scattered showers in the evening, then isolated showers after midnight.
Sunday..Northeast winds around 15 knots diminishing to 5 to 10 knots in the late morning and afternoon. Seas 2 feet. Bay and inland waters a moderate chop. Isolated showers.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 849 Pm Edt Tue Sep 19 2017
Synopsis.. High pressure over the gulf of mexico and across florida will remain in control through the end of the week with a northeast to northerly wind flow continuing with an onshore sea breeze component developing along the coast each afternoon. Wind and seas will increase some during the upcoming weekend as the pressure gradient tightens as hurricane maria moves across the southwestern waters of the atlantic with cautionary conditions a good bet.

7 Day Forecast for Marine Location Near Siesta Key, FL
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location: 27.3, -82.57     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 200517
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
117 am edt Wed sep 20 2017

Aviation
20 06z tafs.VFR prevails with few-sct clouds although lal may see
limited br around sunrise. Increasing moisture in the south could
support isold shra tsra... Will keep pgd fmy rsw just vcsh for now.

Light NE winds increase slightly in the morning... With some of
the coastal terminals shifting during the afternoon to onshore.

Prev discussion issued 805 pm edt Tue sep 19 2017
update...

once again much of the area remained dry today. This can be
attributed to the very dry air above 700 mb. No evening update
needed as any lingering showers will end shortly and the
current forecast accounts for this well. Clear to partly
cloudy skies expected overnight. Lows temperatures will
range from the upper 60s north, and lower to mid 70s central
and south.

Marine...

high pressure will maintain tranquil boating conditions over
the gulf waters tonight through Thursday night with north
to northeast winds around 10 knots with sea around 2 feet
with winds becoming northwest along the coast each afternoon
as the sea breeze component develops.

Preliminary point temps pops
Tpa 92 75 90 75 10 10 20 20
fmy 91 75 89 74 40 20 40 20
gif 92 72 90 72 20 10 30 20
srq 90 75 87 75 20 20 30 20
bkv 92 71 91 72 10 10 20 10
spg 92 76 90 75 10 10 30 20

Tbw watches warnings advisories
Fl... None.

Gulf waters... None.

Aviation... 09 rude
update marine... 11 mckaughan


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
VENF1 - Venice, FL 17 mi39 min ENE 6 G 8 77°F 84°F1014.3 hPa (-0.8)74°F
42013 - C10 - Navy-2 21 mi69 min 84°F
PMAF1 23 mi51 min 83°F1014.2 hPa
MTBF1 25 mi51 min E 7 G 9.9 1015.1 hPa
CLBF1 31 mi105 min E 2.9 G 6 80°F 1014.5 hPa
SAPF1 - 8726520 - St. Petersburg, FL 32 mi57 min E 5.1 G 8 83°F1015.2 hPa
MCYF1 43 mi51 min 83°F
TSHF1 - 8726667 - East Bay Causeway, FL 44 mi57 min E 1 G 2.9
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 44 mi57 min ENE 2.9 G 4.1
CWBF1 - 8726724 - Clearwater Beach, FL 49 mi51 min E 4.1 G 5.1 85°F1015.4 hPa

Wind History for C-Cut, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sarasota / Bradenton, Sarasota-Bradenton International Airport, FL7 mi46 minENE 510.00 miFair75°F72°F90%1014.1 hPa
Venice Municipal Airport, FL17 mi44 minENE 710.00 miPartly Cloudy77°F73°F89%1014.6 hPa

Wind History from SRQ (wind in knots)
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Last 24hrNE5NE4NE3NE4N3N6N6N9
G15
NE7--NE7N8N13
G16
N5NE8NE5E9E8E9E8E8E6E4NE5
1 day agoCalmN3N4N4N3N4N6N7N7N11
G15
N10N10NW14NW14NW11NW12NW8NE7NE7E3NE3NE4NE4N6
2 days agoN3N3N3N4NE3N6NE9NE7NE9NE12N6
G14
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G15
N9NW7N6N9N6N9N4N4N5N5NE4NE3

Tide / Current Tables for Sarasota, Sarasota Bay, Florida
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Sarasota
Click for Map
Wed -- 01:12 AM EDT     1.92 feet High Tide
Wed -- 01:30 AM EDT     New Moon
Wed -- 07:17 AM EDT     Sunrise
Wed -- 07:35 AM EDT     Moonrise
Wed -- 07:40 AM EDT     0.73 feet Low Tide
Wed -- 01:21 PM EDT     2.26 feet High Tide
Wed -- 07:28 PM EDT     Sunset
Wed -- 08:03 PM EDT     Moonset
Wed -- 08:16 PM EDT     0.69 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.81.91.91.71.51.20.90.80.70.91.31.72.12.22.22.11.81.41.10.80.70.811.4

Tide / Current Tables for Tampa Bay (Sunshine Skyway Bridge), Florida Current
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Tampa Bay (Sunshine Skyway Bridge)
Click for Map
Wed -- 12:23 AM EDT     1.54 knots Max Flood
Wed -- 01:30 AM EDT     New Moon
Wed -- 03:36 AM EDT     -0.00 knots Slack
Wed -- 06:24 AM EDT     -0.99 knots Max Ebb
Wed -- 07:18 AM EDT     Sunrise
Wed -- 07:35 AM EDT     Moonrise
Wed -- 09:09 AM EDT     0.00 knots Slack
Wed -- 12:23 PM EDT     1.57 knots Max Flood
Wed -- 03:34 PM EDT     -0.00 knots Slack
Wed -- 06:46 PM EDT     -1.33 knots Max Ebb
Wed -- 07:29 PM EDT     Sunset
Wed -- 08:04 PM EDT     Moonset
Wed -- 09:50 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.51.510.4-0.2-0.7-1-0.9-0.6-0.10.61.21.51.51.10.4-0.3-0.9-1.2-1.3-1.1-0.60.10.8

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 (3,6,7,8)
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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.