Sunday, August20, 2017 L-36.com


Marine Weather and Tides
Gibsonton, 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 7:02AMSunset 8:03PM Sunday August 20, 2017 4:59 PM EDT (20:59 UTC) Moonrise 4:45AMMoonset 6:23PM Illumination 2% Phase: Waning Crescent; Moon at 28 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- 239 Pm Edt Sun Aug 20 2017
Tonight..East winds around 15 knots diminishing to 5 to 10 knots in the late evening and overnight. Bay and inland waters a moderate chop. Scattered Thunderstorms in the evening.
Monday..East winds around 10 knots. Bay and inland waters a light chop.
Monday night..East winds around 10 knots. Bay and inland waters a light chop.
Tuesday..Northeast winds around 10 knots. Bay and inland waters a light chop. Scattered Thunderstorms in the afternoon.
Tuesday night..East winds around 10 knots. Bay and inland waters a light chop. Scattered Thunderstorms in the evening, then isolated Thunderstorms after midnight.
Wednesday..East winds around 5 knots then becoming northeast in the afternoon. Bay and inland waters smooth. Scattered Thunderstorms.
Wednesday night..Northeast winds around 5 knots then becoming east after midnight. Bay and inland waters smooth. Scattered Thunderstorms.
Thursday..South winds around 5 knots then becoming southwest in the afternoon. Bay and inland waters smooth. Numerous Thunderstorms.
Thursday night..Southwest winds around 5 knots. Bay and inland waters smooth. Numerous Thunderstorms in the evening, then scattered Thunderstorms after midnight.
Friday..Southwest winds around 10 knots. Bay and inland waters a light chop. Numerous Thunderstorms.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 239 Pm Edt Sun Aug 20 2017
Synopsis..A weak tropical wave will move over southern florida and into the eastern gulf of mexico later this evening into Monday. High pressure near bermuda ridges west over the area through the period. A series of waves on the south side of the ridge will move through the area producing scattered showers and storms through mid week. Rain chances increase on Wednesday and Thursday with numerous showers and storms expected. With high pressure to our north, a predominant easterly wind flow can be expected, but remaining 15 knots or less. So, outside of increased winds and seas as well as dangerous lightning in the vicinity of storms, no other marine impacts are expected.

7 Day Forecast for Marine Location Near Gibsonton, FL
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location: 27.83, -82.49     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 201815
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
215 pm edt Sun aug 20 2017

Short term (tonight - Monday)
In the mid upper levels, an upper level low over the eastern gulf of
mexico will continue moving westward toward texas through the
tonight and into next week. Mid-level ridging near bermuda extends
west-southwest over eastern florida. On the surface, a weak tropical
wave moves across southern florida tonight. Pwat values will
increase tonight to over 2 inches which will help produce a good
chance of rain and storms this evening. On Monday, the wave moves
into the eastern gulf as subtropical high pressure near bermuda
ridges west-southwest over florida. This will produce a predominant
easterly wind flow over the florida peninsula. A decrease in
moisture is expected with pwat values dropping to below 2 inches on
Monday which in turn will cause a decrease in rain chances.

Temperatures will remain around seasonal averages with daytime highs
in the low 90's and overnight lows in the mid to upper 70's.

Long term (Monday night - Sunday)
Another inverted trough (tropical wave) will be approaching from the
southeast at the start of the period. This feature is forecast to
move northwest across the south-central peninsula during the day on
Tuesday bringing with it increasing rain chances across the southern
third of the forecast area with scattered showers and thunderstorms
(pops 30 to 50 percent range) expected, while further to the north
lingering dry air will likely keep shower and storm coverage in the
isolated range (pops 20 percent) across the nature coast.

During Wednesday and Thursday deep layered moisture (pw's 2+ inches)
in the wake of the trough combined with the sea breeze circulations
will support elevated rain chances (pops in the 40 to 70 percent
range) across the entire forecast area with scattered to numerous
showers and thunderstorms expected daily, with the high moisture
content combined with slow moving storms favoring locally heavy
rainfall rates and amounts in some locations.

On Friday and Saturday the surface ridge axis will sink south as an
upper level trough and attendant cold front drops south toward the
florida georgia border. With ample moisture (pw's 2+ inches)
remaining in place along with the sea breeze, troughing aloft, and a
series of weak low pressure areas moving northeast along the stalled
front will support high coverage of showers and thunderstorms (pops
60 to 70 percent range) continuing across the forecast area with
some locally heavy rainfall possible each day. During Sunday the
upper level trough axis will shift east into the atlantic as upper
level ridging noses in from the northwest as the surface ridge axis
lifts back to the north some with scattered to numerous diurnal sea
breeze driven showers and storms expected during the afternoon.

Daytime temperatures will run above normal through Wednesday, before
returning to near normal Thursday through Sunday as clouds and rain
chances increase across the area. Overnight lows will remain above
normal through the period with lows in mid 70s inland areas, and
upper 70s to around 80 along the coast.

Aviation
Vfr conditions can be expected through most of the afternoon. Some
brief MVFR ifr conditions will be possible this afternoon with
passing storms between 18z-03z. Will keep overallVFR conditions in
tafs for now and cover with vcts and tempo groups later in the day
based on radar coverage. No other aviation impacts expected.

Marine
A weak tropical wave will move over southern florida and into the
eastern gulf of mexico later this evening into Monday. High pressure
near bermuda ridges west over the area through the period. A series
of waves on the south side of the ridge will move through the area
producing scattered showers and storms through mid week. Rain
chances increase on Wednesday and Thursday with numerous showers
and storms expected. With high pressure to our north, a predominant
easterly wind flow can be expected, but remaining 15 knots or less.

So, outside of increased winds and seas as well as dangerous
lightning in the vicinity of storms, no other marine impacts are
expected.

Fire weather
Abundant moisture combined with daily rain chances will keep
humidity levels above critical levels through early next week with
no fire weather issues expected.

Preliminary point temps pops
Tpa 78 92 78 93 10 10 10 30
fmy 76 93 77 91 10 10 10 50
gif 75 94 76 93 10 10 10 30
srq 77 93 77 92 10 10 10 30
bkv 75 93 74 93 10 20 10 20
spg 79 92 80 92 10 10 10 30

Tbw watches warnings advisories
Fl... None.

Gulf waters... None.

Short term aviation marine fire weather... 74 wynn
long term decision support... 57 mcmichael


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OPTF1 - 8726607 - Old Port Tampa, FL 4 mi41 min ESE 6 G 11 90°F 90°F1016.2 hPa
MCYF1 7 mi41 min 89°F
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 8 mi47 min E 8 G 9.9
TSHF1 - 8726667 - East Bay Causeway, FL 8 mi53 min E 6 G 8
SAPF1 - 8726520 - St. Petersburg, FL 9 mi47 min ESE 5.1 G 8.9 93°F 90°F1016.6 hPa
CLBF1 13 mi65 min E 4.1 G 7 92°F 1015.3 hPa
MTBF1 13 mi41 min E 11 G 12 89°F 1016.3 hPa
PMAF1 14 mi41 min 90°F 92°F1015.3 hPa
CWBF1 - 8726724 - Clearwater Beach, FL 21 mi41 min WNW 6 G 8.9 86°F 89°F1016.3 hPa
FHPF1 - Fred Howard Park, FL 28 mi65 min NNW 4.1 G 6 89°F 1016.8 hPa
42098 29 mi29 min 90°F1 ft
ARPF1 - APK - Aripeka, FL 43 mi125 min NNE 1.9 G 5.1 90°F 1016.7 hPa

Wind History for Old Port Tampa, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Macdill Air Force Base, Fl., FL3 mi2 hrsE 710.00 miA Few Clouds92°F74°F57%1016.5 hPa
Tampa, Peter O Knight Airport, FL6 mi84 minESE 610.00 miPartly Cloudy95°F75°F53%1016.6 hPa
Albert Whitted Airport, FL8 mi66 minESE 910.00 miFair93°F72°F50%1015.8 hPa
Tampa, Tampa International Airport, FL10 mi66 minENE 610.00 miOvercast93°F69°F46%1016.2 hPa
St. Petersburg/Clearwater Airport, FL12 mi66 minNE 410.00 miPartly Cloudy92°F71°F51%1016.1 hPa
Tampa, Vandenberg Airport, FL14 mi64 minESE 410.00 miPartly Cloudy93°F73°F53%1016.6 hPa
Plant City, Plant City Municipal Airport, FL21 mi64 minE 410.00 miPartly Cloudy91°F75°F59%1017.3 hPa

Wind History from MCF (wind in knots)
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Last 24hrS5W3W6NW4NW5NW5CalmCalmNE5NE3E6SE7E5E5E3E3E6E6E7E3E4N4E7E9
1 day agoW6NW8NW4CalmNE4NE7SE6S3CalmCalmSE4SE3SE3E3CalmCalmCalmCalmCalmCalmCalmSW6SW5W3
2 days agoE8NE7NE4CalmE6SE5SE6CalmCalmSE3SE3S3CalmCalmSE4CalmCalmE3CalmSE3SW11
G17
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Tide / Current Tables for Ballast Point, Florida
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Ballast Point
Click for Map
Sun -- 03:19 AM EDT     2.08 feet High Tide
Sun -- 05:45 AM EDT     Moonrise
Sun -- 07:02 AM EDT     Sunrise
Sun -- 07:10 AM EDT     1.54 feet Low Tide
Sun -- 01:38 PM EDT     3.46 feet High Tide
Sun -- 07:23 PM EDT     Moonset
Sun -- 08:03 PM EDT     Sunset
Sun -- 09:10 PM EDT     0.04 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.21.61.92.121.91.71.51.61.92.32.73.13.43.43.22.82.11.40.70.300.10.5

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
Sun -- 12:52 AM EDT     1.33 knots Max Flood
Sun -- 04:24 AM EDT     -0.00 knots Slack
Sun -- 05:45 AM EDT     Moonrise
Sun -- 06:46 AM EDT     -0.57 knots Max Ebb
Sun -- 07:03 AM EDT     Sunrise
Sun -- 08:53 AM EDT     0.00 knots Slack
Sun -- 11:39 AM EDT     1.00 knots Max Flood
Sun -- 02:43 PM EDT     -0.00 knots Slack
Sun -- 07:23 PM EDT     Moonset
Sun -- 07:29 PM EDT     -1.62 knots Max Ebb
Sun -- 08:03 PM EDT     Sunset
Sun -- 10:39 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.21.31.10.70.2-0.2-0.5-0.6-0.40.10.60.910.80.4-0.1-0.6-1.1-1.4-1.6-1.6-1.2-0.50.3

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 (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.