Thursday, June22, 2017 L-36.com


Marine Weather and Tides
Greenbriar, FL

Version 3.4
What's New / NOTES
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 6:34AMSunset 8:32PM Thursday June 22, 2017 7:59 PM EDT (23:59 UTC) Moonrise 4:15AMMoonset 6:03PM 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- 405 Pm Edt Thu Jun 22 2017
Tonight..Southwest winds 5 to 10 knots becoming east and increasing to around 10 knots overnight. Bay and inland waters a light chop. Scattered Thunderstorms in the evening.
Friday..Southeast winds around 10 knots becoming southwest during the afternoon. Bay and inland waters a light chop.
Friday night..West winds around 10 knots becoming southeast 5 to 10 knots overnight. Bay and inland waters a light chop. Isolated Thunderstorms.
Saturday..Southeast winds 5 to 10 knots becoming southwest during the afternoon. Bay and inland waters smooth. Scattered Thunderstorms in the afternoon.
Saturday night..West winds around 5 knots becoming east overnight. Bay and inland waters smooth. Isolated Thunderstorms.
Sunday..Southeast winds around 5 knots becoming southwest 5 to 10 knots during the afternoon. Bay and inland waters smooth. Scattered Thunderstorms.
Sunday night..Northwest winds around 5 knots becoming east overnight. Bay and inland waters smooth. Scattered Thunderstorms.
Monday..Southeast winds around 5 knots becoming southwest 5 to 10 knots in the afternoon. Bay and inland waters smooth. Numerous showers and scattered Thunderstorms.
Monday night..Northwest winds around 5 knots becoming east overnight. Bay and inland waters smooth. Scattered Thunderstorms.
Tuesday..South winds around 5 knots becoming west 5 to 10 knots during the afternoon. Bay and inland waters smooth. Numerous showers and scattered Thunderstorms.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 405 Pm Edt Thu Jun 22 2017
Synopsis..High pressure will remain over the region through early next week with rather light winds shifting onshore and increasing some near the coast each afternoon as the sea breeze develops. During this timeframe, the only marine concern will be locally gusty winds and rough seas in and near any Thunderstorms.

7 Day Forecast for Marine Location Near Greenbriar, FL
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location: 28.02, -82.77     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 221930
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
330 pm edt Thu jun 22 2017

Short term (tonight-Friday)
High pressure will continue to build into the area through Friday
with some drier air moving in and suppressing rain chances, 30-40
percent for early tonight and 20-30 percent on Friday. Light winds
will pick up from the SE later Friday morning and then the sea
breeze will take over during the afternoon shifting winds to
onshore near the coast. Lows tonight will be in the lower to mid
70s inland and mid to upper 70s coastal. Highs Friday will
generally be in the lower 90s, with some upper 80s at the beaches.

Mid term long term (Friday night-Thursday)
A strong u l ridge will hold over the florida peninsula Friday night
through Sunday. On Monday and Tuesday, a strong u l disturbance
will push across the great lakes and ohio river valley with an
associated u l trough digging along the eastern seaboard and florida
peninsula. As the trough lifts northeast off the mid atlantic coast
Wednesday and Thursday, an u l ridge will build back over the
southeast u.S. And florida.

At the surface, the persistent area of high pressure over the
western atlantic with a ridge axis across the florida peninsula will
hold over the region Saturday... But will begin to slide east of the
forecast area on Sunday. Atmosphere will remain conditionally
unstable and daytime heating will allow scattered afternoon showers
and thunderstorms to develop Saturday and Sunday with the best areal
coverage over the interior where the collision of the east west
coast sea breeze boundaries is expected. Thunderstorm activity will
gradually dissipate during the evening hours.

Lower heights combined with an approaching frontal boundary will aid
destabilization on Monday, Tuesday, and Wednesday afternoons with
scattered to numerous showers and thunderstorms each day. Moisture
pooled south of the boundary will also allow pcpw values to increase
to AOA 2 inches which will create the risk for locally heavy rain.

Transition day on Thursday as high pressure surface and aloft begins
to build back over the forecast area with large scale subsidence
gradually increasing... And pops lowering a bit. However, scattered
afternoon thunderstorms are expected to develop with highest pops
along the coastal counties south of tampa bay in region of best
available deep layer moisture and l l convergence along the west
coast sea breeze boundary. Temperatures will run a few to several
degrees above climatic normals over the weekend, then return back to
near normal early next week due to the increasing cloud cover.

Aviation
Vfr conditions prevailing across all terminals this afternoon with
southeast winds between 8-10kt shifing to onshore at the coastal
taf sites. Scattered afternoon thunderstorms, with best convective
development over the northern terminals, will be possible between
19z-02z which may temporarily bring MVFR local ifr conditions.

Winds subside tonight then increase to 8-10kt after daybreak
tomorrow under the prevailing southeast flow.

Marine
High pressure will build across the coastal waters from the atlantic
through Saturday keeping generally SE winds in place with an
afternoon sea breeze developing near the coast. For Sunday through
Tuesday, the high pressure ridge will get pushed off to the south
and east as a trough settles just north of the state and washes out,
with high pressure to the north bridging across the remnant boundary
by the end of the period. This will turn winds more to the E NE for
early next week with afternoon sea breezes dominating the flow.

Scattered thunderstorms can be expected each day. No headlines are
anticipated through the period.

Fire weather
No concerns as relative humidities will remain above 35 percent
and winds and erc values below critical thresholds.

Preliminary point temps pops
Tpa 77 92 78 90 40 10 20 30
fmy 75 93 76 92 10 30 20 40
gif 74 93 76 93 20 20 10 40
srq 76 92 77 91 30 10 20 30
bkv 72 92 73 91 40 10 10 40
spg 78 90 80 90 30 10 20 30

Tbw watches warnings advisories
Fl... None.

Gulf waters... None.

Short term aviation marine fire weather... 24 hubbard
mid term long term decision support... 13 oglesby


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CWBF1 - 8726724 - Clearwater Beach, FL 4 mi41 min WSW 8 G 9.9
FHPF1 - Fred Howard Park, FL 9 mi125 min W 11 G 13 85°F 1017.1 hPa
OPTF1 - 8726607 - Old Port Tampa, FL 16 mi41 min W 8.9 G 8.9 87°F 85°F1016 hPa
SAPF1 - 8726520 - St. Petersburg, FL 19 mi41 min W 9.9 G 11 86°F 84°F
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 19 mi47 min W 6 G 9.9
TSHF1 - 8726667 - East Bay Causeway, FL 19 mi41 min W 7 G 9.9
MCYF1 20 mi41 min 86°F
CLBF1 20 mi65 min W 8.9 G 11 86°F 1014.9 hPa
MTBF1 27 mi41 min WSW 8.9 G 9.9 85°F 1016.3 hPa
PMAF1 29 mi41 min 86°F 89°F1015.7 hPa

Wind History for Clearwater Beach, FL
(wind in knots)    EDIT      (on/off)   Help
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Last
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S15
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S10
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NE8
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G14
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G17
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SE6
G12
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G14
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
St. Petersburg/Clearwater Airport, FL9 mi66 minWSW 910.00 miFair90°F73°F59%1015.4 hPa
Tampa, Tampa International Airport, FL13 mi66 minWNW 1010.00 miPartly Cloudy90°F75°F62%1015.6 hPa
Macdill Air Force Base, Fl., FL17 mi2 hrsSSW 610.00 miFair91°F80°F72%1016.2 hPa
Tampa, Peter O Knight Airport, FL18 mi84 minSSW 510.00 miPartly Cloudy93°F78°F63%1015.6 hPa
Albert Whitted Airport, FL19 mi66 minW 810.00 miFair87°F75°F67%1015 hPa
Tampa, Vandenberg Airport, FL22 mi64 minN 010.00 miPartly Cloudy90°F75°F63%1015.6 hPa

Wind History from PIE (wind in knots)
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Last 24hrS10S66SE8E9SE5SE5SE5SE6SE7SE7SE7SE9SE10SE10S11
G16
S9SE9SE9SE7S6SW10W10SW9
1 day agoS3SE5S4SE6SE8E9SE11SE9SE8SE11SE10SE10SE11SE10SE10SE12SE12
G19
S13
G19
S10S12SW8S15
G19
S15S13
2 days agoE6E7E5E5E5E6E7E10E9E8E11E12SE12SE12SE13SE15
G20
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G20
SE7SE10
G16
SE8SE8SE8SW5

Tide / Current Tables for Dunedin, St. Joseph Sound, Florida
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Dunedin
Click for Map
Thu -- 04:50 AM EDT     1.06 feet Low Tide
Thu -- 05:15 AM EDT     Moonrise
Thu -- 06:35 AM EDT     Sunrise
Thu -- 10:43 AM EDT     3.04 feet High Tide
Thu -- 06:02 PM EDT     -0.49 feet Low Tide
Thu -- 07:03 PM EDT     Moonset
Thu -- 08:30 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.52.31.91.51.11.11.21.62.12.6332.82.31.60.90.2-0.3-0.5-0.30.20.91.62.3

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 -- 12:18 AM EDT     1.24 knots Max Flood
Thu -- 03:52 AM EDT     -0.00 knots Slack
Thu -- 05:14 AM EDT     Moonrise
Thu -- 06:00 AM EDT     -0.44 knots Max Ebb
Thu -- 06:34 AM EDT     Sunrise
Thu -- 08:06 AM EDT     0.00 knots Slack
Thu -- 11:05 AM EDT     1.08 knots Max Flood
Thu -- 01:56 PM EDT     -0.00 knots Slack
Thu -- 06:44 PM EDT     -1.64 knots Max Ebb
Thu -- 07:01 PM EDT     Moonset
Thu -- 08:29 PM EDT     Sunset
Thu -- 10:19 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.21.20.90.4-0-0.3-0.4-0.3-00.40.91.10.90.5-0-0.6-1.1-1.4-1.6-1.6-1.5-1-0.30.5

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 (19,4,5,8)
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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.