Tuesday, September26, 2017 L-36.com

Marine Weather and Tides
Bradenton Beach, 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 7:20AMSunset 7:22PM Tuesday September 26, 2017 8:54 AM EDT (12:54 UTC) Moonrise 12:00PMMoonset 10:59PM Illumination 33% Phase: Waxing Crescent; Moon at 6 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- 348 Am Edt Tue Sep 26 2017
Today..Northeast winds around 5 knots then becoming west around 10 knots in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop.
Tonight..North winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop.
Wednesday..North winds around 5 knots then becoming northwest in the afternoon. Seas 2 feet or less. Bay and inland waters smooth.
Wednesday night..North winds around 5 knots. Seas 2 feet or less. Bay and inland waters smooth.
Thursday..North winds around 5 knots then becoming west late in the afternoon. Seas 2 feet or less. Bay and inland waters smooth. Scattered Thunderstorms in the afternoon.
Thursday night..Northwest winds around 5 knots then becoming north late in the evening, then becoming east around 5 knots after midnight. Seas 2 feet or less. Bay and inland waters smooth. Isolated Thunderstorms.
Friday..East winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop. Scattered Thunderstorms.
Friday night..East winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop. Scattered Thunderstorms in the evening, then isolated Thunderstorms after midnight.
Saturday..East winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop. Scattered Thunderstorms.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 348 Am Edt Tue Sep 26 2017
Synopsis.. As hurricane maria continues to pull away from the region over the western atlantic ocean and high pressure remains to our north and west, we will maintain weak gradient flow with light and variable to light north/northwest winds much of the week. Dry conditions are expected through at least mid week with a gradual return of moisture and increasing rain chances Friday into the weekend. High pressure also looks to build in north of the waters over the weekend with a sustained easterly flow pattern setting up.

7 Day Forecast for Marine Location Near Bradenton Beach, FL
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location: 27.47, -82.69     debug

Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 261131
area forecast discussion
national weather service tampa bay ruskin fl
731 am edt Tue sep 26 2017

Vfr is expected at all terminal sites during the next 24
hours. A few shra tsra will be possible at kfmy and krsw
after 21z and have included vcts to cover this. Light and
variable winds will become west at 7 to 9 knots after 16z
as the sea breeze develops. Light and variable winds will
return to all terminals after 02z tonight.

Prev discussion issued 345 am edt Tue sep 26 2017
short term (today and Wednesday)...

a high amplitude trough continues to extend from the desert
southwest into the northern plains, generating heavy
rainfall across portions of the high and central great
plains region. Meanwhile, weak upper ridging resides from
the gulf of mexico into the western atlantic ocean, with
two exceptions. One being a weak upper cutoff low still
centered over the northern gulf coast, and the other being
hurricane maria, which continues to lift northward off the
southeast u.S. Coast. As the low pressure center associated
with maria continues to lift away from the region, we will
remain poised between surface high pressure to the
northwest, and departing low pressure to the northeast. The
result will be a dry spell.

For today and Wednesday, drier air will slowly filter into
the region with light northerly winds. With very weak
gradient flow, the seabreezes will be quite pronounced each
afternoon, with breezy onshore winds near the coast.

Seabreezes will converge over interior parts of the
peninsula mid to late afternoon, but with lacking moisture,
only isolated showers and storms are expected. At this time,
the highest rain chances, which will generally be 20 to 30
percent, will remain over southern florida, where slightly
greater moisture will reside. Otherwise, expect dry
conditions with highs reaching the lower 90s each afternoon
and upper 80s along the coast. As drier air fills in,
morning lows may be slightly cooler than on recent mornings,
with upper 60s to lower 70s north, and low to mid 70s

Mid long term (Wednesday night through next Tuesday)...

at the start of the mid long term forecast period, models
continue to show the presence of an upper low around the
florida peninsula. At the surface, a strong ridge to the
north will keep a northeast flow regime in place into next
week. Drier air that was in place over the area earlier in
the week will begin to give way to increasing moisture on
Thursday and this trend will continue into the weekend. Sct
rain chances will be mainly limited to SW florida on
Thursday but by Friday much of the CWA will return to pops
in the 30-50 percent range and this will continue into next
week. Temperatures will top out near 90 Thursday and Friday
but mostly upper 80s expected into the weekend with
increased cloud cover. Overnight lows will continue in the
low to mid 70s.


a weak pressure gradient will persist over the waters much
of the coming week, resulting in light north to northwest
winds. Winds will increase and shift onshore near the coast
each afternoon due to the seabreeze. A dry forecast is
expected until late week into the weekend, when rain chances
will gradually increase. Easterly flow pattern will resume
by the weekend as high pressure builds in to the north.

Fire weather...

a brief period of lower afternoon humidities of 40 to 50
percent will exist through Thursday, as slightly drier air
filters into the region due to light northerly winds.

Gradual moistening will occur from Friday into the weekend
with increasing rain chances. Given humidities will remain
well above critical levels, no fire weather concerns are

Preliminary point temps pops
Tpa 90 76 90 77 0 0 10 0
fmy 91 75 91 75 20 10 20 20
gif 93 74 93 73 10 10 0 0
srq 88 76 88 75 10 0 10 0
bkv 92 71 93 72 0 0 0 0
spg 90 78 90 77 0 0 10 0

Tbw watches warnings advisories
Fl... None.

Gulf waters... None.

Aviation... 57 mcmichael
short term marine fire weather... 84 austin
mid term long term... 11 mckaughan

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PMAF1 13 mi54 min 77°F 84°F1012.3 hPa (+1.6)
MTBF1 14 mi54 min ESE 5.1 G 6 79°F 1013 hPa (+1.7)
CLBF1 18 mi120 min E 1.9 G 1.9 78°F 1011.7 hPa
SAPF1 - 8726520 - St. Petersburg, FL 20 mi54 min N 1.9 G 4.1 81°F 84°F1013.1 hPa (+1.4)
OPTF1 - 8726607 - Old Port Tampa, FL 28 mi54 min ENE 1.9 G 4.1 79°F 84°F1013 hPa (+1.6)
VENF1 - Venice, FL 30 mi54 min NE 4.1 G 6 78°F 85°F1012.8 hPa (+1.5)74°F
MCYF1 34 mi54 min 83°F
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 35 mi60 min E 2.9 G 4.1
TSHF1 - 8726667 - East Bay Causeway, FL 35 mi60 min ENE 1.9 G 2.9
CWBF1 - 8726724 - Clearwater Beach, FL 36 mi54 min E 1 G 1.9 80°F 85°F1013.1 hPa (+1.4)
FHPF1 - Fred Howard Park, FL 48 mi120 min Calm G 0 79°F 1013 hPa

Wind History for C-Cut, FL
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1 day
2 days

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sarasota / Bradenton, Sarasota-Bradenton International Airport, FL9 mi61 minENE 310.00 miFair72°F72°F100%1012.4 hPa
Albert Whitted Airport, FL21 mi61 minN 310.00 miFair81°F75°F82%1012.2 hPa

Wind History from SRQ (wind in knots)
1 day agoNE7E8SE7E7NE7E8E6W9N8E7N3CalmN4NE4E6E5E4E3E3NE3NE3NE4E3NE4
2 days agoNE8NE8NE8NE12E10NE11NE10

Tide / Current Tables for Cortez, Sarasota Bay, Florida
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Click for Map
Tue -- 03:23 AM EDT     2.32 feet High Tide
Tue -- 07:21 AM EDT     Sunrise
Tue -- 11:52 AM EDT     0.54 feet Low Tide
Tue -- 12:59 PM EDT     Moonrise
Tue -- 06:28 PM EDT     1.65 feet High Tide
Tue -- 07:22 PM EDT     Sunset
Tue -- 10:39 PM EDT     1.52 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Tampa Bay Entrance (Egmont Channel), Florida Current
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Tampa Bay Entrance (Egmont Channel)
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Tue -- 03:20 AM EDT     0.93 knots Max Flood
Tue -- 06:07 AM EDT     -0.00 knots Slack
Tue -- 07:21 AM EDT     Sunrise
Tue -- 09:34 AM EDT     -1.30 knots Max Ebb
Tue -- 12:59 PM EDT     Moonrise
Tue -- 01:51 PM EDT     0.00 knots Slack
Tue -- 05:21 PM EDT     0.89 knots Max Flood
Tue -- 07:22 PM EDT     Sunset
Tue -- 09:33 PM EDT     -0.00 knots Slack
Tue -- 10:55 PM EDT     -0.13 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Weather Map and Satellite Images
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Weather Map
IR Satellite Image from GEOS

GOES Local Image of Southeast    EDIT

Wind Forecast for Tampa Bay, FL (8,2,3,4)
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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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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.