Thursday, August17, 2017 L-36.com


Marine Weather and Tides
Holmes 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 7:01AMSunset 8:06PM Thursday August 17, 2017 1:52 AM EDT (05:52 UTC) Moonrise 1:43AMMoonset 3:38PM Illumination 26% Phase: Waning Crescent; Moon at 25 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- 846 Pm Edt Wed Aug 16 2017
Rest of tonight..North winds around 10 knots then becoming northeast around 5 knots toward morning. Seas 2 feet or less. Bay and inland waters a light chop.
Thursday..Northeast winds around 5 knots then becoming northwest around 10 knots in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop. Isolated Thunderstorms in the afternoon.
Thursday night..North winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop. Isolated Thunderstorms in the evening, then scattered Thunderstorms after midnight.
Friday..Northeast winds around 5 knots then becoming northwest in the afternoon. Seas 2 feet or less. Bay and inland waters smooth. Scattered Thunderstorms.
Friday night..Northwest winds around 5 knots then becoming east around 5 knots after midnight. Seas 2 feet or less. Bay and inland waters smooth. Isolated Thunderstorms.
Saturday..East winds around 5 knots then becoming southeast early in the afternoon, then becoming west late in the afternoon. Seas 2 feet or less. Bay and inland waters smooth. Scattered Thunderstorms.
Saturday night..Northwest winds around 5 knots then becoming east around 10 knots after midnight. Seas 2 feet or less. Bay and inland waters a light chop. Scattered Thunderstorms.
Sunday..Southeast winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop. Numerous Thunderstorms.
Sunday night..East winds 5 to 10 knots increasing to around 15 knots after midnight. Seas 2 feet. Bay and inland waters a moderate chop. Scattered Thunderstorms.
Monday..East winds around 10 knots. Seas 2 to 3 feet. Bay and inland waters a light chop. Scattered Thunderstorms.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 846 Pm Edt Wed Aug 16 2017
Synopsis..Atlantic high pressure remains over the eastern gulf of mexico...with an axis near tampa bay...through the weekend with a relaxed pressure gradient. The ridge eases northward early next week. Typical widely scattered summer Thunderstorms can be anticipated each day...with the best potential for a passing storm during the late night and morning hours. Winds and seas will be higher near the storms.

7 Day Forecast for Marine Location Near Holmes Beach, FL
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location: 27.51, -82.71     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 170015
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
815 pm edt Wed aug 16 2017

Update
Tonight and thu. Upper level ridge anchored along 30 north
latitude with limited suppression and warm temperatures will
continue as an inverted upper trough moves over the bahamas late
thu. The subtropical ridge from the atlantic to the gulf of
mexico... Bisecting the state in the vicinity of tampa
bay... Remains in place for the next 24 hours and beyond. The
pressure gradient stays relaxed with light low level flow
dominated by sea breeze circulations Thu afternoon. Deep moisture
with pwat above 2 inches holds on over the area into Thu night
with a broad swath of drier air... Associated with the upper
trough... Over the bahamas.

Afternoon thunderstorms were robust at times but rather well behaved
but are now winding down and should end within the next couple of
hours. Will update the forecast shortly to reflect this. A few
showers and storms are expected to form later tonight on the gulf
and drift onto the nature coast late morning. A moist airmass
with light flow will result in Thu being a repeat of
today... Summer time with showers and thunderstorms.

Aviation
17 00z tafs. PrevailingVFR. Bkn mid-high clouds clear overnight
with light mainly variable winds. Aft 16z-18z... Increasing clouds
with vcnty tsra as bay-sea breezes set up. Limited MVFR LCL ifr
psbl late in the period.

Marine
Atlantic high pressure meanders across central fl and out over
the gulf of mexico for much of the weekend then lifts into
northern fl for the start of next week. The pressure gradient
remains relaxed with sea breeze circulations in the afternoons.

The main concern will be locally higher winds and seas near
thunderstorms.

Preliminary point temps pops
Tpa 81 92 79 91 10 40 20 50
fmy 77 93 77 93 10 40 20 50
gif 76 94 76 93 20 60 20 60
srq 78 90 78 91 10 30 20 50
bkv 76 91 75 91 10 40 20 50
spg 80 93 79 90 10 30 20 50

Tbw watches warnings advisories
Fl... None.

Gulf waters... None.

Update aviation marine... 09 rude
upper air... 27 shiveley
decision support... 13 oglesby


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PMAF1 12 mi52 min 81°F 91°F1018 hPa (+0.5)
MTBF1 12 mi52 min SSE 7 G 8 82°F 1018.7 hPa (+0.5)
42098 13 mi52 min 90°F1 ft
CLBF1 16 mi178 min NE 1 G 1.9 84°F 1018 hPa
SAPF1 - 8726520 - St. Petersburg, FL 18 mi52 min SSE 4.1 G 6 84°F 90°F1018.9 hPa (+0.4)
OPTF1 - 8726607 - Old Port Tampa, FL 25 mi52 min SSE 4.1 G 6 84°F 90°F1018.8 hPa (+0.5)
42013 - C10 - Navy-2 26 mi82 min NE 1.9 G 3.9 89°F
MCYF1 32 mi52 min 88°F
TSHF1 - 8726667 - East Bay Causeway, FL 33 mi58 min ESE 1.9 G 2.9
VENF1 - Venice, FL 33 mi52 min E 6 G 6 81°F 90°F1018.7 hPa (+0.0)77°F
CWBF1 - 8726724 - Clearwater Beach, FL 33 mi52 min NW 2.9 G 4.1 86°F 90°F1018.7 hPa (+0.3)
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 33 mi64 min SE 1.9 G 4.1
FHPF1 - Fred Howard Park, FL 45 mi118 min Calm G 1.9 87°F 1019.3 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, FL11 mi59 minESE 310.00 miFair80°F75°F85%1018.1 hPa
Albert Whitted Airport, FL18 mi59 minS 610.00 miFair84°F77°F80%1018.1 hPa

Wind History from SRQ (wind in knots)
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Last 24hrCalmCalmCalmE3CalmCalmE3E4CalmNW4NW6W9W9NE8NW6W6N6N4N3CalmE4SE5SE5E3
1 day agoW6W6W4CalmSW4CalmCalmSW5SW5W6SW6W8W9W11W9W9W9W8NW5NW7N3NW5NW3Calm
2 days agoCalmE3CalmE3SE3SE3SE4SE5SW5SE5SW5SW7SW7SW8SW6SW8SW8SW8W7SW5W6W3W4W5

Tide / Current Tables for Anna Maria Key, Bradenton Beach, Tampa Bay, Florida
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Anna Maria Key
Click for Map
Thu -- 12:31 AM EDT     1.50 feet Low Tide
Thu -- 02:43 AM EDT     Moonrise
Thu -- 07:02 AM EDT     Sunrise
Thu -- 07:11 AM EDT     2.63 feet High Tide
Thu -- 03:34 PM EDT     0.07 feet Low Tide
Thu -- 04:37 PM EDT     Moonset
Thu -- 08:06 PM EDT     Sunset
Thu -- 10:58 PM EDT     1.64 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.51.51.61.82.12.32.52.62.62.42.11.61.20.70.30.10.10.20.50.91.21.51.61.6

Tide / Current Tables for Tampa Bay Entrance (Egmont Channel), Florida Current
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Tampa Bay Entrance (Egmont Channel)
Click for Map
Thu -- 02:08 AM EDT     -0.00 knots Slack
Thu -- 02:21 AM EDT     -0.01 knots Max Ebb
Thu -- 02:34 AM EDT     0.00 knots Slack
Thu -- 02:43 AM EDT     Moonrise
Thu -- 07:02 AM EDT     Sunrise
Thu -- 07:45 AM EDT     1.03 knots Max Flood
Thu -- 10:45 AM EDT     -0.00 knots Slack
Thu -- 02:46 PM EDT     -1.88 knots Max Ebb
Thu -- 04:37 PM EDT     Moonset
Thu -- 07:13 PM EDT     0.00 knots Slack
Thu -- 08:06 PM EDT     Sunset
Thu -- 10:27 PM EDT     1.46 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50.2000.20.50.8110.90.4-0.2-0.8-1.4-1.8-1.9-1.7-1.3-0.8-0.20.51.11.41.4

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 (1,6,7,8)
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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.