Wednesday, September20, 2017 L-36.com


Marine Weather and Tides
Longboat 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 12:38 PM EDT (16:38 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- 930 Am Edt Wed Sep 20 2017
This afternoon..Northeast winds around 10 knots then becoming north in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop.
Tonight..Northeast winds around 10 knots then becoming east after midnight. Seas 2 feet or less. Bay and inland waters a light chop.
Thursday..East winds around 10 knots then becoming north in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop.
Thursday night..Northeast winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop. Isolated Thunderstorms.
Friday..Northeast winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop. Scattered showers and isolated Thunderstorms.
Friday night..Northeast winds around 15 knots. Seas 2 feet. Bay and inland waters a moderate chop. Scattered showers and isolated Thunderstorms.
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 and isolated Thunderstorms.
Saturday night..Northeast winds around 15 knots. Seas 2 feet. Bay and inland waters a moderate chop. Scattered showers and isolated Thunderstorms.
Sunday..Northeast winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop. Isolated showers.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 930 Am Edt Wed Sep 20 2017
Synopsis..High pressure with a relaxed gradient will dominate the waters through the end of the week with benign conditions expected. During the weekend hurricane maria moving across the southern waters of the atlantic will tighten the gradient with an increase in wind speeds. Mariners should Monitor the progress of hurricane maria...detailed information on maria may be found on advisories from the national hurricane center.

7 Day Forecast for Marine Location Near Longboat Key, FL
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location: 27.38, -82.63     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 201318
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
918 am edt Wed sep 20 2017

Update
Weather conditions across west central and southwest florida are
starting out on the beautiful side this morning. Satellite imagery
and surface observations are showing mostly sunny skies across the
region. The 12z morning sounding is showing a relatively dry air
mass over the region with a pw of only 1.30 inches. Latest model
guidance is showing a mostly rain-free day in store for us today
with only a chance of an isolated shower south of the i-4 corridor
later this afternoon. Under these sunny skies, temps will warm up to
slightly above average with low 90's expected region wide. No
changes needed for the forecast at this time.

Aviation
20 12z tafs.VFR conditions will prevail at all terminals through
the next 24 hours. Very few clouds this morning, then slightly
increasing to a sct CU deck this afternoon. Northern terminals will
stay dry while pgd fmy rsw may see a stray shower this afternoon, so
will cover that with vcsh after 18z. Winds will remain light less
than 10 knots. No other aviation impacts expected.

Marine
High pressure with a relaxed gradient will dominate the waters
through the end of the week with benign conditions expected. During
the weekend hurricane maria moving across the southern waters of the
atlantic will tighten the gradient with an increase in wind speeds.

Mariners should monitor the progress of hurricane maria... Detailed
information on maria may be found on advisories from the national
hurricane center.

Hydrology
Residual river run-off from the heavy rains associated with
hurricane irma last week continues to cause flooding issues for many
rivers across west central and southwest florida. Most rivers in the
area have seen their peak flooding and are on a gradual receding
trend. However... The withlacoochee river at trilby and croom will
continue to slowly rise... Cresting either today or tomorrow. The
river levels will then generally remain steady through the remainder
of the week... Which will prolong the worst flooding this area has
seen in over 50 years.

Preliminary point temps pops
Tpa 92 75 91 75 10 0 10 20
fmy 91 75 92 74 30 20 30 20
gif 92 72 91 73 10 0 10 10
srq 90 75 91 74 20 10 20 20
bkv 92 71 91 71 10 0 10 10
spg 90 76 89 75 10 10 10 20

Tbw watches warnings advisories
Fl... None.

Gulf waters... None.

Update aviation marine hydrology... 74 wynn
upper air... 14 mroczka
decision support... 25 davis


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PMAF1 18 mi50 min 82°F 84°F1015.7 hPa
MTBF1 20 mi50 min NNE 9.9 G 11 81°F 1016.7 hPa
42013 - C10 - Navy-2 21 mi68 min 84°F
VENF1 - Venice, FL 23 mi98 min ENE 2.9 G 6 84°F 84°F1016.3 hPa (+1.0)74°F
CLBF1 25 mi104 min E 4.1 G 8 85°F 1015.6 hPa
SAPF1 - 8726520 - St. Petersburg, FL 26 mi56 min ENE 6 G 8.9 85°F 84°F1017 hPa
MCYF1 38 mi50 min 82°F
TSHF1 - 8726667 - East Bay Causeway, FL 39 mi62 min ENE 5.1 G 8
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 40 mi62 min NE 5.1 G 8
CWBF1 - 8726724 - Clearwater Beach, FL 43 mi50 min NNW 11 G 12 82°F 84°F1016.8 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, FL4 mi45 minENE 610.00 miPartly Cloudy87°F73°F63%1015.6 hPa
Venice Municipal Airport, FL24 mi43 minNE 810.00 miMostly Cloudy86°F75°F70%1016.3 hPa

Wind History from SRQ (wind in knots)
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Last 24hr--NE7N8N13
G16
N5NE8NE5E9E8E9E8E8E6E4NE5NE4NE4NE4NE4NE6NE7E7E8E6
1 day agoN11
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N10N10NW14NW14NW11NW12NW8NE7NE7E3NE3NE4NE4N6NE5NE4NE3NE4N3N6N6N9
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2 days agoNE12N6
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N9NW7N6N9N6N9N4N4N5N5NE4NE3CalmN3N4N4N3N4N6N7N7

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 (12,3,4,5)
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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.