Monday, July24, 2017 L-36.com


Marine Weather and Tides
South Pasadena, 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 6:48AMSunset 8:25PM Monday July 24, 2017 4:52 PM EDT (20:52 UTC) Moonrise 7:05AMMoonset 8:35PM Illumination 2% 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- 307 Pm Edt Mon Jul 24 2017
Tonight..West winds around 10 knots then becoming south around 5 knots after midnight. Bay and inland waters a light chop.
Tuesday..Wind variable less than 5 knots then becoming west around 5 knots in the late morning and early afternoon, then increasing to around 10 knots late in the afternoon. Bay and inland waters a light chop.
Tuesday night..Northwest winds around 10 knots then becoming north around 5 knots after midnight, then becoming northeast toward morning. Bay and inland waters a light chop.
Wednesday..Wind variable less than 5 knots then becoming northwest around 5 knots late in the morning, then becoming west early in the afternoon increasing to around 10 knots late in the afternoon. Bay and inland waters a light chop. Isolated Thunderstorms in the morning, then scattered Thunderstorms in the afternoon.
Wednesday night..West winds around 10 knots then becoming south around 5 knots after midnight. Bay and inland waters a light chop. Scattered Thunderstorms in the evening, then isolated Thunderstorms after midnight.
Thursday..South winds around 5 knots then becoming southwest around 5 knots in the afternoon. Bay and inland waters smooth. Scattered Thunderstorms.
Thursday night..West winds around 5 knots then becoming southwest after midnight. Bay and inland waters smooth. Scattered Thunderstorms in the evening, then isolated Thunderstorms after midnight.
Friday..West winds around 10 knots. Bay and inland waters a light chop. Scattered Thunderstorms.
Friday night..Southwest winds around 10 knots. Bay and inland waters a light chop. Scattered Thunderstorms in the evening, then isolated Thunderstorms after midnight.
Saturday..West winds around 10 knots. Bay and inland waters a light chop. Scattered Thunderstorms.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 307 Pm Edt Mon Jul 24 2017
Synopsis..High pressure will continue to ridge across the coastal waters through the next several days, with light winds. Scattered Thunderstorms will be possible each day, with winds and seas higher near the storms.

7 Day Forecast for Marine Location Near South Pasadena, FL
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location: 27.75, -82.75     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 241908
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
308 pm edt Mon jul 24 2017

Short term (tonight-Tuesday)
High pressure ridging across south florida will meander
north to across central florida overnight through Tuesday
with the pocket of dry air remaining across much of the
local area from the gulf of mexico. Winds will continue from
the SW across the northern zones, with flow turning more to
the S SE central and E SE south for Tuesday. Isolated to
scattered rain chances will be in place with the highest
chances north, and timing continuing in the early morning
near the coast and pushing inland for the northern zones,
with later morning early afternoon development for the
central and southern zones Tuesday. Lows tonight will be in
the upper 70s to near 80 along the coast, and in the lower
to mid 70s inland. Highs Tuesday will be a little warmer,
mainly in the lower to mid 90s except upper 80s at the
beaches.

Long term (Tuesday night-Monday)
An u l subtropical ridge will hold over the florida
peninsula on Wednesday. A weak u l trough will sink over
the southeast u.S. Wednesday, and north florida on Thursday
and Friday... Suppressing the u l ridge over central and
south florida. Over the weekend, a strong u l disturbance
will approach the mid atlantic coast with a l W trough
digging along the eastern seaboard and florida peninsula.

This will completely suppress the subtropical ridge south of
the forecast with lowering heights over west central and
southwest florida. Large scale subsidence will weaken... With
deep west to southwest flow developing late in the period
over the eastern. Gulf of mexico and florida. Quite a bit of
uncertainty remains in the extended as the GFS remains more
amplified than the ecmwf.

At the surface, high pressure ridge axis will extend across
south central florida Wednesday through Friday with
continued onshore west to southwest flow each day. This
pattern favors scattered late night early morning
showers thunderstorms to develop over the coastal waters
advecting locally onshore during the morning, spreading
inland during the afternoon. Pocket of slightly drier air
aloft is expected to be wedged over the area Wednesday
through Saturday which will act to decrease areal coverage
of shower thunderstorm activity each day with below climo
pops. Increasing deep layer southwest flow late in the
weekend into early next week should allow deep layer
moisture to recover with increasing pops Sunday and Monday.

Temperatures will continue to run a few degrees above
climatic normals through the mid long range period.

Aviation
Showers are developing in the vicinity of the terminals this
afternoon and will continue to be possible through around
01z this evening. Skies will clear out as winds become light
and variable. Light E SE flow Tuesday morning will become
sw in the late morning early afternoon with some isolated
showers possible near the end of the period.

Marine
High pressure will ridge across the peninsula through the
period. The ridge axis will meander a bit north to across
central florida overnight and Tuesday, putting some E se
flow in across the southern waters, but otherwise winds will
remain mainly from the SW through the period. This will
keep scattered thunderstorms in the forecast each day. Wind
speeds and seas will remain light through the period except
in the vicinity of the scattered storms.

Fire weather
No concerns.

Preliminary point temps pops
Tpa 79 92 79 92 0 10 10 30
fmy 77 94 77 93 10 30 30 40
gif 76 95 76 95 10 30 10 40
srq 77 92 78 91 10 10 10 30
bkv 73 92 74 92 10 10 10 30
spg 80 92 80 91 10 10 10 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
CLBF1 3 mi118 min SSW 8 G 11 87°F 1017.3 hPa
SAPF1 - 8726520 - St. Petersburg, FL 7 mi52 min SSW 8 G 13 87°F 86°F1017.8 hPa (-1.0)
MTBF1 10 mi52 min WSW 8.9 G 11 86°F 1017.8 hPa (-1.0)
OPTF1 - 8726607 - Old Port Tampa, FL 13 mi52 min SSW 11 G 13 86°F 86°F1017.6 hPa (-1.0)
PMAF1 13 mi52 min 86°F 88°F1016.9 hPa (-1.0)
CWBF1 - 8726724 - Clearwater Beach, FL 16 mi52 min SW 9.9 G 12 86°F 87°F1017.6 hPa (-1.0)
MCYF1 21 mi52 min 87°F
TSHF1 - 8726667 - East Bay Causeway, FL 21 mi64 min SW 8.9 G 13
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 21 mi64 min S 6 G 9.9
FHPF1 - Fred Howard Park, FL 28 mi118 min WSW 11 G 14 85°F 1018.9 hPa
42013 - C10 - Navy-2 41 mi82 min SSW 5.8 G 7.8 87°F
VENF1 - Venice, FL 49 mi52 min SSW 5.1 G 6 87°F 89°F1017.7 hPa (-1.4)77°F

Wind History for St. Petersburg, FL
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Albert Whitted Airport, FL7 mi59 minSW 910.00 miFair89°F75°F63%1016.9 hPa
St. Petersburg/Clearwater Airport, FL12 mi59 minSSW 1110.00 miPartly Cloudy90°F77°F66%1017.4 hPa
Macdill Air Force Base, Fl., FL14 mi54 minSSW 1110.00 miA Few Clouds91°F81°F74%1017.9 hPa
Tampa, Tampa International Airport, FL19 mi59 minSW 1010.00 miMostly Cloudy90°F75°F62%1017.5 hPa
Tampa, Peter O Knight Airport, FL20 mi57 minSW 810.00 miMostly Cloudy90°F78°F71%1017.6 hPa

Wind History from SPG (wind in knots)
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Last 24hrCalmCalmS5S8SW4CalmSW4CalmS8S8S8S7SW3SW4CalmS6SW4SW7S6SW8SW9SW9SW9SW9
1 day agoW7W5SW6S6S7S9SW6W3CalmSE9S11S13S8S6SW5W4CalmW10
G19
CalmE3CalmNE3CalmN4
2 days agoW7E12S3E8E5SE6S6SE7SE7SE6S9S7S9CalmS9S11W4S7SW6SW7S8S12SW8SW9
G18

Tide / Current Tables for St. Petersburg Beach Causeway, Florida
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St. Petersburg Beach Causeway
Click for Map
Mon -- 03:30 AM EDT     1.45 feet High Tide
Mon -- 06:49 AM EDT     Sunrise
Mon -- 07:47 AM EDT     1.27 feet Low Tide
Mon -- 08:05 AM EDT     Moonrise
Mon -- 01:31 PM EDT     2.59 feet High Tide
Mon -- 08:24 PM EDT     Sunset
Mon -- 09:35 PM EDT     Moonset
Mon -- 09:47 PM EDT     -0.17 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.611.31.41.41.41.31.31.31.41.722.42.62.62.42.11.61.10.60.2-0.1-0.20

Tide / Current Tables for Tampa Bay Entrance (Egmont Channel), Florida Current
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Tampa Bay Entrance (Egmont Channel)
Click for Map
Mon -- 01:29 AM EDT     1.77 knots Max Flood
Mon -- 05:23 AM EDT     -0.00 knots Slack
Mon -- 06:49 AM EDT     -0.28 knots Max Ebb
Mon -- 06:50 AM EDT     Sunrise
Mon -- 08:05 AM EDT     Moonrise
Mon -- 08:20 AM EDT     0.00 knots Slack
Mon -- 12:23 PM EDT     1.56 knots Max Flood
Mon -- 03:15 PM EDT     -0.00 knots Slack
Mon -- 07:03 PM EDT     -2.36 knots Max Ebb
Mon -- 08:24 PM EDT     Sunset
Mon -- 09:35 PM EDT     Moonset
Mon -- 11:07 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.31.71.71.30.70.2-0.2-0.3-0.10.30.81.21.51.510.2-0.7-1.6-2.2-2.4-2.2-1.7-1-0.1

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.