Tuesday, October17, 2017 L-36.com


Marine Weather and Tides
Beacon Square, 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 7:32AMSunset 7:00PM Tuesday October 17, 2017 4:17 PM EDT (20:17 UTC) Moonrise 4:26AMMoonset 5:03PM Illumination 7% 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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GMZ830 Tampa Bay Waters- 254 Pm Edt Tue Oct 17 2017
.small craft advisory in effect through Wednesday morning...
Tonight..Northeast winds 10 to 15 knots increasing to around 20 knots late in the evening. Bay and inland waters choppy. Isolated Thunderstorms in the evening.
Wednesday..Northeast winds around 20 knots becoming northeast around 15 knots in the afternoon. Bay and inland waters a moderate chop.
Wednesday night..Northeast winds around 15 knots diminishing to 5 to 10 knots toward morning. Bay and inland waters a moderate chop.
Thursday..Northeast winds around 10 knots. Bay and inland waters a light chop. Isolated Thunderstorms in the afternoon.
Thursday night..Northeast winds around 15 knots. Bay and inland waters a moderate chop. Isolated Thunderstorms in the evening.
Friday..Northeast winds around 15 knots. Bay and inland waters a moderate chop. Isolated Thunderstorms.
Friday night..East winds around 15 knots. Bay and inland waters a moderate chop.
Saturday..East winds around 10 knots. Bay and inland waters a light chop. Isolated Thunderstorms.
Saturday night..East winds around 15 knots. Bay and inland waters a moderate chop. Isolated Thunderstorms.
Sunday..East winds around 10 knots. Bay and inland waters a light chop. Scattered showers and isolated Thunderstorms.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 254 Pm Edt Tue Oct 17 2017
Synopsis..High pressure will build into the mid-atlantic region and remain in place through the rest of the week, with northeast winds increasing to cautionary or advisory levels for all of the coastal waters. A small craft advisory will be in effect for the gulf waters from englewood to the suwannee river and including tampa bay through Wednesday. There could be a period of sub-advisory winds during the day, but they should then increase again Wednesday night, so the advisory may need to be extended further out in time.

7 Day Forecast for Marine Location Near Beacon Square, FL
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location: 28.23, -82.77     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 171827
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
227 pm edt Tue oct 17 2017

Short term (tonight-Wednesday)
A broad upper-level trough continues across the eastern u.S. This
afternoon with a shortwave within this trough dropping southward
through alabama and georgia. At the surface, the weak frontal
boundary is slowly moving southeastward across the northern part of
the forecast area, marked by lower dew points and a small wind
shift. Scattered showers and a few embedded thunderstorms continue
to make their way generally southwestward and this should continue
through the rest of the afternoon and evening.

For tonight, the shortwave will weaken and gradually shift eastward
as the ridge over the southwest u.S. Shifts eastward as well.

Surface high pressure will build more firmly along the mid-atlantic
coast, with an increasing pressure gradient leading to increasing
northeasterly winds across our forecast area. Most of the area
should be dry tonight, but cannot rule out a few showers making
their way over the interior on those northeast winds.

The ridge aloft will continue to shift eastward over the western and
central gulf of mexico on Wednesday with the surface high shifting
eastward a bit but still keeping breezy northeast winds in place and
scattered showers and a few thunderstorms. Temperatures will rebound
back into the mid-80s for most areas Wednesday afternoon, with dew
points in the upper 60s to lower 70s. The nature coast will likely
be a bit cooler and drier still, with lower rain chances.

Long term (Wednesday night-Monday)
Upper trough over the region moves into the western atlantic as
upper ridging builds through the gulf of mexico then over the state
to end the week and into the weekend. Large surface high pressure
centered over the eastern u.S. To get re-enforced along the eastern
seaboard this weekend. These features to keep easterly low level
flow over the forecast area to end the week and into the weekend.

Limited mean layer moisture to keep pops in the 20-30 percent range
with best chances in southern and interiors zones. Temps to remain
on the warm side running 2-4 degrees above seasonal averages.

Next possible system for the region at the end of the forecast
period as an upper trough digs from the plains into the gulf region,
that would push cold front into the region Monday with increasing
moisture and rain chances.

Aviation
Vfr with some occasional MVFR CIGS continue across area terminals
this afternoon. A few showers will be possible later this afternoon
and evening, but then mostly dry conditions are expected overnight.

Winds will remain easterly and a bit gusty this afternoon, then will
decrease some tonight.

Marine
High pressure will build into the mid-atlantic region and remain in
place through the rest of the week, with northeast winds increasing
to cautionary or advisory levels for all of the coastal waters. A
small craft advisory will be in effect for the gulf waters from
englewood to the suwannee river and including tampa bay through
Wednesday. There could be a period of sub-advisory winds during the
day, but they should then increase again Wednesday night, so the
advisory may need to be extended further out in time.

Fire weather
A cold front across the northern part of the peninsula today and
tonight will bring scattered showers and a few thunderstorms to the
region. High pressure building over the mid-atlantic region will
result in northeast winds through the rest of the week, with daily
chances for showers. Relative humidity values will remain above
critical levels, with no concerns. Some patchy ground fog will be
possible, but widespread dense fog is not expected.

Preliminary point temps pops
Tpa 71 85 71 87 10 10 10 20
fmy 72 86 71 87 20 20 10 30
gif 70 83 70 85 10 20 10 30
srq 71 85 71 85 10 10 10 30
bkv 68 84 68 86 10 10 10 20
spg 71 85 72 87 10 10 10 20

Tbw watches warnings advisories
Fl... None.

Gulf waters... Small craft advisory until 10 am edt Wednesday for coastal
waters from englewood to tarpon springs fl out 20 nm-
coastal waters from tarpon springs to suwannee river
fl out 20 nm-tampa bay waters-waters from englewood
to tarpon springs fl out 20 to 60 nm-waters from
tarpon springs to suwannee river fl out 20 to 60 nm.

Short term aviation marine fire weather... 05 carlisle
mid term long term decision support... 25 davis


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FHPF1 - Fred Howard Park, FL 6 mi84 min ENE 14 G 20
ARPF1 - APK - Aripeka, FL 15 mi144 min E 8.9 G 14 79°F 1017.7 hPa
CWBF1 - 8726724 - Clearwater Beach, FL 18 mi48 min NE 8.9 G 17 78°F 82°F1016.7 hPa
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 27 mi60 min N 9.9 G 13
TSHF1 - 8726667 - East Bay Causeway, FL 28 mi54 min NE 8 G 13
OPTF1 - 8726607 - Old Port Tampa, FL 28 mi48 min NE 7 G 14 78°F 82°F1016.5 hPa
MCYF1 28 mi48 min 82°F
SAPF1 - 8726520 - St. Petersburg, FL 33 mi48 min NE 12 G 16 78°F 83°F1016.6 hPa
CLBF1 34 mi84 min ENE 6 G 15 78°F 1015.8 hPa
MTBF1 40 mi48 min ENE 15 G 17 78°F 1016.5 hPa
PMAF1 42 mi48 min 78°F 82°F1015.6 hPa

Wind History for Clearwater Beach, FL
(wind in knots)    EDIT      (on/off)   Help
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NW13
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NE8
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Tampa, Tampa International Airport, FL22 mi25 minNNE 810.00 miLight Rain79°F70°F74%1016.7 hPa
St. Petersburg/Clearwater Airport, FL23 mi25 minNE 810.00 miPartly Cloudy80°F71°F74%1016.5 hPa
Brooksville, Hernando County Airport, FL24 mi25 minNE 13 G 2110.00 miMostly Cloudy79°F69°F72%1017.2 hPa

Wind History from TPA (wind in knots)
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Last 24hrW8NW7NW7N8N7N6NE5NE6E3N5NE5NE4N14NE9
G17
NE6NE10
G15
NE7NE8NE10
G15
NE7NE7NE10
G15
NE8NE8
1 day agoN10E8W6CalmCalmCalmNE3CalmCalmNE3CalmCalmN3E3NE3NE33E43SW4W3SW7SW6SW7
2 days ago5E11
G16
666E7444NE3NE5CalmNE5E3NE5N3NE44E6E5NE5NE4W10W8

Tide / Current Tables for Gulf Harbors, Florida
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Gulf Harbors
Click for Map
Tue -- 05:26 AM EDT     Moonrise
Tue -- 06:09 AM EDT     0.51 feet Low Tide
Tue -- 07:33 AM EDT     Sunrise
Tue -- 11:52 AM EDT     3.21 feet High Tide
Tue -- 06:02 PM EDT     Moonset
Tue -- 06:35 PM EDT     0.45 feet Low Tide
Tue -- 06:59 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
32.82.31.81.20.70.50.61.11.82.63.13.232.62.11.40.90.50.50.91.52.32.9

Tide / Current Tables for Anclote Key, southern end, Florida
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Anclote Key
Click for Map
Tue -- 05:12 AM EDT     0.37 feet Low Tide
Tue -- 05:26 AM EDT     Moonrise
Tue -- 07:33 AM EDT     Sunrise
Tue -- 11:14 AM EDT     3.09 feet High Tide
Tue -- 05:37 PM EDT     0.32 feet Low Tide
Tue -- 06:02 PM EDT     Moonset
Tue -- 06:59 PM EDT     Sunset
Tue -- 11:29 PM EDT     3.03 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.82.41.81.10.60.40.50.91.62.32.83.132.72.11.40.80.40.40.71.322.63

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 (16,3,4,5)
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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.