Thursday, September21, 2017 L-36.com


Marine Weather and Tides
Kenneth City, 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 7:18AMSunset 7:28PM Thursday September 21, 2017 3:41 PM EDT (19:41 UTC) Moonrise 7:33AMMoonset 7:42PM Illumination 1% Phase: Waxing Crescent; Moon at 1 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- 317 Pm Edt Thu Sep 21 2017
Tonight..Northeast winds 5 to 10 knots then becoming east around 15 knots late in the evening, then diminishing to 5 to 10 knots after midnight. Bay and inland waters a moderate chop. Isolated Thunderstorms in the evening.
Friday..Northeast winds around 10 knots. Bay and inland waters a light chop. Scattered showers and isolated Thunderstorms in the afternoon.
Friday night..East winds around 15 knots diminishing to 5 to 10 knots after midnight. Bay and inland waters a moderate chop. Scattered showers and isolated Thunderstorms.
Saturday..Northeast winds around 10 knots. Bay and inland waters a light chop. Scattered showers and isolated Thunderstorms in the morning, then scattered Thunderstorms in the afternoon.
Saturday night..Northeast winds 5 to 10 knots then becoming east around 15 knots late in the evening, then becoming northeast 5 to 10 knots after midnight. Bay and inland waters a moderate chop. Scattered Thunderstorms in the evening, then isolated Thunderstorms after midnight.
Sunday..Northeast winds around 10 knots. Bay and inland waters a light chop. Scattered Thunderstorms.
Sunday night..East winds around 10 knots. Bay and inland waters a light chop. Scattered Thunderstorms in the evening.
Monday..Northeast winds around 10 knots then becoming north around 5 knots in the afternoon. Bay and inland waters a light chop. Scattered showers.
Monday night..North winds around 5 knots then becoming northeast after midnight. Bay and inland waters smooth. Scattered showers in the evening.
Tuesday..East winds around 5 knots then becoming northwest in the afternoon. Bay and inland waters smooth. Isolated showers.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 317 Pm Edt Thu Sep 21 2017
Synopsis..High pressure will continue to ridge across the northern gulf of mexico through the end of the week with winds and seas remaining below headline criteria. Winds and seas will increase slightly this weekend in response to a tighter pressure gradient as hurricane maria lifts north of the bahamas...staying well east of florida. High pressure will build back in early next week with benign winds and seas continuing.

7 Day Forecast for Marine Location Near Kenneth City, FL
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location: 27.8, -82.72     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 211908
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
308 pm edt Thu sep 21 2017

Short term (tonight - Friday)
Broad surface high pressure centered north of florida will
hold through the rest of the week as hurricane maria lifts
north of the bahamas. Generally easterly flow will continue,
with fairly dry conditions persisting through the rest of
today, with a few isolated showers and storms developing
along the sea breeze during the late afternoon and evening
hours. On Friday, atlantic moisture will advect into the
florida peninsula, allowing for more widespread showers and
storms to develop during the afternoon and evening. Under
continued easterly flow, storms will start to develop over
the interior during the early afternoon, and build west
towards the coast through the late afternoon and early
evening hours.

Temperatures will remain seasonable, with lows tonight
generally in the 70s, and highs on Friday around 90.

Long term (Friday night - Thursday)
An amplified upper air pattern will persist across the conus
during the long term period featuring a deep upper level
trough over the western u.S. And a strong upper level ridge
over the central and eastern u.S.. At the start of the
period a trough axis from jose meandering offshore the new
england coast will extend southwest along the eastern
seaboard and into the northern gulf of mexico while
hurricane maria moves north northwest over the southwest
atlantic east-southeast of the bahamas. Ample moisture
within an increasing easterly wind flow courtesy of a
tightening pressure gradient between high pressure to the
west and maria to the southeast will support scattered to
numerous showers and isolated thunderstorms across the
forecast area during the weekend with the convection
developing over eastern sections during the morning hours
and then moving west toward the coastal areas during the
afternoon and early evening hours. It will become breezy
with east winds increasing to 10 to 15 mph over inland
areas, and 15 to 20 mph with some higher gusts along the
coast.

Aviation
A few showers or thunderstorms will be possible south of
tampa bay along the sea breeze boundary through the rest of
the afternoon, with brief periods of reduced visibilities
and ceilings of around 2500-3000 feet possible.VFR
conditions will then hold after around 02z, and hold through
Friday morning.

Marine
High pressure centered north of florida will continue to
ridge into the gulf of mexico into the weekend, with light
winds and seas continuing outside of daily thunderstorms.

As hurricane maria lifts north of the bahamas this weekend,
it is forecast to stay well away from florida but will
cause the pressure gradient to tighten up across the coastal
waters, bringing winds up to around 15 knots with seas of
as much as 3 feet. High pressure will build back in through
the first half of next week, with benign marine conditions
expected.

Fire weather
No fire weather concerns.

Preliminary point temps pops
Tpa 75 90 75 90 10 50 30 60
fmy 74 91 75 90 20 60 30 50
gif 73 90 73 90 10 50 30 60
srq 74 90 75 90 10 50 30 60
bkv 71 90 72 90 10 50 30 60
spg 76 89 76 89 10 50 30 60

Tbw watches warnings advisories
Fl... None.

Gulf waters... None.

Short term aviation marine fire weather... 18 fleming
mid term long term decision support... 57 mcmichael


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CLBF1 5 mi107 min NE 2.9 G 6 89°F 1014.2 hPa
SAPF1 - 8726520 - St. Petersburg, FL 6 mi41 min E 4.1 G 6 91°F 84°F1014.8 hPa (-1.9)
OPTF1 - 8726607 - Old Port Tampa, FL 10 mi41 min NW 5.1 G 5.1 87°F 84°F1014.3 hPa (-2.1)
MTBF1 12 mi41 min N 5.1 G 6 85°F 1014.4 hPa (-2.1)
CWBF1 - 8726724 - Clearwater Beach, FL 14 mi41 min NNW 12 G 12 83°F 84°F1014.6 hPa (-2.0)
PMAF1 14 mi41 min 85°F 88°F1013.5 hPa (-2.1)
TSHF1 - 8726667 - East Bay Causeway, FL 18 mi47 min NE 6 G 12
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 18 mi47 min NE 7 G 15
MCYF1 18 mi41 min 83°F
FHPF1 - Fred Howard Park, FL 25 mi107 min N 11 G 13 84°F 1016.1 hPa
ARPF1 - APK - Aripeka, FL 44 mi107 min E 6 G 9.9 89°F 1015.3 hPa
42013 - C10 - Navy-2 45 mi71 min 85°F

Wind History for St. Petersburg, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Albert Whitted Airport, FL5 mi48 minE 410.00 miFair90°F68°F48%1013.8 hPa
St. Petersburg/Clearwater Airport, FL8 mi48 minVar 410.00 miFair92°F68°F46%1014.4 hPa
Macdill Air Force Base, Fl., FL11 mi43 minNE 710.00 miFair93°F72°F51%1014.5 hPa
Tampa, Tampa International Airport, FL15 mi48 minENE 510.00 miPartly Cloudy92°F66°F43%1014.5 hPa
Tampa, Peter O Knight Airport, FL16 mi66 minENE 1010.00 miMostly Cloudy93°F71°F50%1014.6 hPa
Tampa, Vandenberg Airport, FL24 mi46 minNE 310.00 miPartly Cloudy95°F68°F41%1014.6 hPa

Wind History from SPG (wind in knots)
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Last 24hrE6NE7NE9E9E10SE13SE16SE15SE12SE11E10E10E10E9E8E9E8E8NE8E8E6E3CalmE4
1 day agoNE8NE9E10E11E11E11E13E12E12E10SE9SE9SE8E7E6NE4NE5E9NE9E8E8NE5E4E4
2 days agoN9N10N10
G17
N11N8N10NE9NE10NE10E10NE7N4E9E8NE7N3N5N4NE6E9E7NE8NE9NE11

Tide / Current Tables for Johns Pass, Florida
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Johns Pass
Click for Map
Thu -- 12:55 AM EDT     2.04 feet High Tide
Thu -- 07:15 AM EDT     0.64 feet Low Tide
Thu -- 07:19 AM EDT     Sunrise
Thu -- 08:33 AM EDT     Moonrise
Thu -- 01:21 PM EDT     2.20 feet High Tide
Thu -- 07:28 PM EDT     Sunset
Thu -- 07:38 PM EDT     0.83 feet Low Tide
Thu -- 08:41 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
221.91.71.41.10.80.60.711.31.722.22.221.71.41.10.90.811.31.7

Tide / Current Tables for Old Tampa Bay Entrance (Port Tampa), Florida Current
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Old Tampa Bay Entrance (Port Tampa)
Click for Map
Thu -- 01:46 AM EDT     1.12 knots Max Flood
Thu -- 04:49 AM EDT     -0.00 knots Slack
Thu -- 07:18 AM EDT     Sunrise
Thu -- 08:11 AM EDT     -1.14 knots Max Ebb
Thu -- 08:32 AM EDT     Moonrise
Thu -- 11:11 AM EDT     0.00 knots Slack
Thu -- 01:57 PM EDT     1.22 knots Max Flood
Thu -- 05:12 PM EDT     -0.00 knots Slack
Thu -- 07:27 PM EDT     Sunset
Thu -- 08:28 PM EDT     -1.06 knots Max Ebb
Thu -- 08:40 PM EDT     Moonset
Thu -- 11:30 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.611.10.90.4-0.1-0.6-1-1.1-1.1-0.7-0.10.61.11.210.60.1-0.4-0.8-1-1-0.8-0.3

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 (15,3,4,5)
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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.