Friday, July10, 2020
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Marine Weather and Tides
St. Petersburg, FL

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:41AMSunset 8:31PM Friday July 10, 2020 2:20 PM EDT (18:20 UTC) Moonrise 11:31PMMoonset 10:41AM Illumination 72% Phase: Waning Gibbous; Moon at 20 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- 959 Am Edt Fri Jul 10 2020
This afternoon..West winds around 10 knots. Bay and inland waters a light chop. Scattered Thunderstorms until late afternoon, then isolated Thunderstorms late in the afternoon.
Tonight..West winds around 10 knots. Bay and inland waters a light chop. Isolated Thunderstorms until early morning. Scattered Thunderstorms toward morning.
Saturday..West winds 5 to 10 knots increasing to around 15 knots late in the afternoon. Bay and inland waters a moderate chop. Scattered Thunderstorms.
Saturday night..West winds around 10 knots. Bay and inland waters a light chop. Scattered Thunderstorms.
Sunday..West winds around 10 knots. Bay and inland waters a light chop. Numerous Thunderstorms in the morning, then scattered Thunderstorms in the afternoon.
Sunday night..Southwest winds around 10 knots. Bay and inland waters a light chop. Isolated Thunderstorms in the evening, then scattered Thunderstorms after midnight.
Monday..West winds around 10 knots. Bay and inland waters a light chop. Scattered Thunderstorms.
Monday night..West winds around 10 knots. Bay and inland waters a light chop. Isolated Thunderstorms.
Tuesday..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- 959 Am Edt Fri Jul 10 2020
Synopsis..High pressure will maintain a westerly wind flow along with slight seas across the gulf waters through the weekend and into early next week. Wind and seas will be higher near late night and early morning showers and storms, otherwise no headlines are expected.


7 Day Forecast for Marine Location Near St. Petersburg, FL
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location: 27.77, -82.62     debug


Area Discussion for - Tampa Bay, FL
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FXUS62 KTBW 101727 AFDTBW

Area Forecast Discussion National Weather Service Tampa Bay Ruskin FL 127 PM EDT Fri Jul 10 2020

AVIATION. Widely scattered SHRA and and few TSRA may bring brief MVFR cigs/vsbys to the coastal terminals through 21Z and through 00Z at the southwest terminals and KLAL, otherwise VFR will prevail. SHRA and isolated TSRA may bring additional MVFR conditions to the coastal terminals after 09Z Saturday as additional convection moves onshore from the Gulf and have handled with VCSH/VCTS for now, otherwise VFR will continue. West to northwest winds in the 10 to 15 knot range this afternoon will diminish to 7 to 10 knots after 02Z tonight.

Prev Discussion. /issued 902 AM EDT Fri Jul 10 2020/

UPDATE . A frontal trough sinking in from the north and high pressure to the south and extending west into the Gulf is supporting a deep layered west-northwest wind flow across the forecast area this morning. 12Z Raob data shows a very moist air mass in place with a PW of 1.91 inches, which is up about 2/10 of an inch from yesterday at this time. Morning 88D returns show widely scattered showers and isolated storms moving in from the Gulf with additional showers and storms also firing off over inland areas within the moist and unstable air mass.

As for the remainder of today expect to see the highest rain chances and best areal coverage of showers and storms to focus over inland and eastern portions of the peninsula which is typical for a westerly flow regime. Rather warm mid level temperatures (-4 to -5C at 500MB) should keep the threat for severe storms in check, but with the deep layered moisture in place and a skinny area of Cape noted on the Raob data locally heavy downpours and localized flooding of low lying and poor drainage areas as well as the ponding of water on roadways will be possible as the storms move east-southeastward at 10 to 15 mph through the day. It will be warm and humid with afternoon highs topping out around 90 to the lower 90s with heat indices in the 105 to 107 degree range which is just shy of Heat Advisory criteria. Current forecast has a good handle on things with no updates or changes required at this time.

MARINE . West-northwest winds in the 10 to 15 knot range with seas of 2 feet or less will continue over the Gulf waters the remainder of today. Higher winds and seas will be possible in the vicinity of showers and storms, otherwise no headlines are expected. Ongoing forecast is on track with no changes expected in the next update around 10 AM.

TBW WATCHES/WARNINGS/ADVISORIES. FL . None. Gulf waters . None.

AVIATION . 57/McMichael


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAPF1 - 8726520 - St. Petersburg, FL 1 mi50 min 89°F 87°F1016 hPa
CLBF1 4 mi86 min NW 8 G 14 87°F 1015.1 hPa
GCTF1 5 mi50 min 86°F 1015.6 hPa74°F
OPTF1 - 8726607 - Old Port Tampa, FL 7 mi50 min 86°F 88°F1015.7 hPa
MTBF1 8 mi50 min 85°F 1015.7 hPa76°F
PMAF1 10 mi50 min 85°F 1015.7 hPa
SKCF1 14 mi140 min WNW 16 G 31
EBEF1 15 mi62 min 88°F 88°F1015.1 hPa
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 15 mi62 min WNW 2.9 G 6
TSHF1 - 8726667 - East Bay Causeway, FL 15 mi68 min WNW 6 G 11
CWBF1 - 8726724 - Clearwater Beach, FL 18 mi50 min 84°F 88°F1016.1 hPa
42098 21 mi54 min 87°F4 ft
FHPF1 - Fred Howard Park, FL 28 mi86 min NW 13 G 14 85°F 1016.4 hPa
42013 - C10 - Navy-2 44 mi50 min WNW 14 G 16 85°F 87°F1016.5 hPa
VENF1 - Venice, FL 49 mi140 min WNW 12 G 14 86°F 89°F1016.1 hPa77°F

Wind History for St. Petersburg, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Albert Whitted Airport, FL1 mi27 minNW 15 G 2010.00 miA Few Clouds88°F75°F68%1014.6 hPa
Macdill Air Force Base, Fl., FL8 mi24 minWNW 9 G 1610.00 miPartly Cloudy90°F76°F66%1015.2 hPa
St. Petersburg/Clearwater Airport, FL10 mi27 minNNW 1510.00 miA Few Clouds91°F79°F68%1015.3 hPa
Tampa, Peter O Knight Airport, FL14 mi25 minWNW 7 G 1410.00 miMostly Cloudy91°F80°F71%1015.2 hPa
Tampa, Tampa International Airport, FL15 mi27 minWNW 9 G 1710.00 miMostly Cloudy91°F73°F57%1015 hPa
Tampa, Vandenberg Airport, FL22 mi25 minWNW 710.00 miFair91°F77°F63%1015.2 hPa

Link to 5 minute data for KSPG

Wind History from SPG (wind in knots)
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1 day agoNW9W11
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2 days agoSW12W10W14
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W8NW5NW4W3W3CalmSW3CalmSW3W3W3CalmNW6W9W10NW10W12
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Tide / Current Tables for St. Petersburg, Tampa Bay, Florida
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


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
Fri -- 02:23 AM EDT     0.00 knots Slack
Fri -- 05:21 AM EDT     0.93 knots Max Flood
Fri -- 06:41 AM EDT     Sunrise
Fri -- 08:50 AM EDT     -0.00 knots Slack
Fri -- 11:13 AM EDT     -0.55 knots Max Ebb
Fri -- 11:41 AM EDT     Moonset
Fri -- 01:44 PM EDT     0.00 knots Slack
Fri -- 04:29 PM EDT     0.81 knots Max Flood
Fri -- 07:17 PM EDT     -0.00 knots Slack
Fri -- 08:29 PM EDT     Sunset
Fri -- 10:57 PM EDT     -1.11 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1-0.7-0.20.30.70.90.90.70.3-0.1-0.4-0.5-0.5-0.30.10.50.80.80.50.1-0.3-0.7-1-1.1

Weather Map
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wmap_A
GEOS Local Image of Southeast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Tampa Bay, FL (14,3,4,5)
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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 numerous 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.