Saturday, November28, 2020
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Marine Weather and Tides
St. Petersburg, FL

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 7:01AMSunset 5:36PM Saturday November 28, 2020 12:32 AM EST (05:32 UTC) Moonrise 4:41PMMoonset 5:22AM Illumination 96% Phase: Waxing Gibbous; Moon at 13 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- 814 Pm Est Fri Nov 27 2020
Rest of tonight..Northeast winds around 5 knots. Bay and inland waters smooth.
Saturday..East winds around 5 knots then becoming south late in the morning, then becoming west early in the afternoon then becoming northwest around 5 knots late in the afternoon. Bay and inland waters smooth.
Saturday night..North winds around 5 knots then becoming east after midnight. Bay and inland waters smooth.
Sunday..East winds around 5 knots then becoming south around 10 knots in the afternoon. Bay and inland waters a light chop.
Sunday night..Southwest winds around 10 knots. Bay and inland waters a light chop. Scattered Thunderstorms after midnight.
Monday..West winds around 15 knots. Bay and inland waters a moderate chop. Scattered Thunderstorms.
Monday night..Northwest winds around 15 knots. Bay and inland waters a moderate chop.
Tuesday..North winds around 15 knots. Bay and inland waters a moderate chop.
Tuesday night..Northeast winds around 10 knots. Bay and inland waters a light chop.
Wednesday..Northeast winds around 10 knots. Bay and inland waters a light chop.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 814 Pm Est Fri Nov 27 2020
Synopsis..Weak high pressure will remain over the gulf this weekend for light winds and slight seas. A strong cold front early next week will bring strong winds and rough choppy elevated seas.


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 280113 AFDTBW

Area Forecast Discussion National Weather Service Tampa Bay Ruskin FL 813 PM EST Fri Nov 27 2020

UPDATE. Zonal flow aloft over the FL Peninsula this evening with weak surface high pressure in place over the area. Warm and humid conditions to continue with patchy fog forming overnight especially in interior and fog prone areas through Saturday Morning. Latest grids and forecasts on track.

AVIATION. VFR conditions this evening with light winds but patchy/shallow field fog is expected to develop overnight especially in typical fog prone areas with tempos into MVFR category, but may need to reduce vsby into IFR towards 12Z as conditions warrant.

Prev Discussion. /issued 149 PM EST Fri Nov 27 2020/

DISCUSSION .

Models are a little slower with the approaching cold front than they were yesterday, we are looking at an early Monday morning event. The atmosphere looks plenty unstable and with Bulk Richardson Numbers in the 25 to 35 range there is at least some chance of a couple stronger, more organized storms.

Behind the front is much colder air. At first, on Monday the wind will have enough of an onshore component that temperatures will not fall very fast, but we should see strato cu from the cold air blowing over the Gulf. Late Monday the veers and that will allow the cold air to advect down the state.

Right now Wednesday morning looks to be the coldest morning with winds calming down allowing for radiational cooling. I would not be surprised at all to see frost in the typically colder locations north and east of Tampa.

Starting Thursday expect a very slow warm up to begin, until the next blast of cold air just beyond this forecast period.

MARINE .

No headlines for the weekend. Cold air blowing over the relatively warm water will cause enhanced seas early next week.

FIRE WEATHER .

Much drier air is expected next week behind the cold front with gusty winds early in the week.

Preliminary Point Temps/PoPs. TPA 67 82 67 82 / 0 10 0 0 FMY 65 83 66 82 / 0 0 0 0 GIF 65 83 66 82 / 0 10 0 0 SRQ 66 81 67 82 / 0 0 0 0 BKV 63 81 63 81 / 0 10 0 0 SPG 69 78 69 79 / 0 0 0 0

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

RJD


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAPF1 - 8726520 - St. Petersburg, FL 1 mi44 min Calm G 1.9 71°F 73°F1018.4 hPa
CLBF1 4 mi98 min Calm G 1.9 70°F 1017.6 hPa
GCTF1 5 mi44 min 72°F 1018.1 hPa66°F
OPTF1 - 8726607 - Old Port Tampa, FL 7 mi44 min ENE 1.9 G 2.9 71°F 74°F1018.2 hPa
MTBF1 8 mi44 min NE 4.1 G 5.1 71°F 1018 hPa67°F
PMAF1 10 mi44 min 70°F 73°F1018.1 hPa
SKCF1 14 mi44 min NE 1.9 G 3.9
EBEF1 15 mi50 min 69°F 73°F1017.9 hPa
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 15 mi44 min N 1 G 1.9
TSHF1 - 8726667 - East Bay Causeway, FL 15 mi50 min ENE 2.9 G 2.9
CWBF1 - 8726724 - Clearwater Beach, FL 18 mi44 min E 1.9 G 1.9 72°F 76°F1018.3 hPa
42098 21 mi36 min 74°F1 ft
FHPF1 - Fred Howard Park, FL 28 mi98 min ENE 1.9 G 2.9 71°F 1018.9 hPa
42013 - C10 - Navy-2 44 mi62 min NNE 7.8 G 7.8 37°F 75°F1018.4 hPa
VENF1 - Venice, FL 49 mi92 min NE 5.1 G 6 71°F 74°F1017.8 hPa (+0.3)71°F

Wind History for St. Petersburg, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Albert Whitted Airport, FL1 mi39 minN 010.00 miFair72°F68°F87%1017.5 hPa
Macdill Air Force Base, Fl., FL8 mi36 minN 010.00 miFair65°F62°F91%1018.2 hPa
St. Petersburg/Clearwater Airport, FL10 mi39 minN 010.00 miFair67°F66°F97%1018 hPa
Tampa, Peter O Knight Airport, FL14 mi37 minN 010.00 miFair68°F62°F83%1018.3 hPa
Tampa, Tampa International Airport, FL15 mi39 minN 010.00 miFair71°F63°F76%1018.1 hPa
Tampa, Vandenberg Airport, FL22 mi37 minN 07.00 miFair64°F62°F94%1018.3 hPa

Link to 5 minute data for KSPG

Wind History from SPG (wind in knots)
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Last 24hrNE5NE5E4S4CalmE4E3E3E3SE4SE3E3E3CalmCalmCalmNW6NW6N6N3N4N3N4Calm
1 day agoSE4SE5SE4SE4SE7SE6SE7E4SE3SE5SE3CalmSE4CalmS3W6SW6W5W4CalmCalmCalmCalmNE5
2 days agoE9E8E9E7E9E9E7E6E6E7SE13SE10SE7E7E5E5SE3SE4SE7SE8SE7SE7S6SE6

Tide / Current Tables for St. Petersburg, Florida (2) (expired 1995-12-31)
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St. Petersburg
Click for Map
Sat -- 05:22 AM EST     Moonset
Sat -- 07:02 AM EST     Sunrise
Sat -- 07:07 AM EST     -0.08 feet Low Tide
Sat -- 02:04 PM EST     1.46 feet High Tide
Sat -- 04:40 PM EST     Moonrise
Sat -- 05:34 PM EST     Sunset
Sat -- 05:57 PM EST     1.17 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.11.91.61.20.80.30-0.1-00.20.50.91.21.41.51.41.31.21.21.21.41.61.92.1

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
Sat -- 01:06 AM EST     -0.00 knots Slack
Sat -- 05:19 AM EST     -1.29 knots Max Ebb
Sat -- 05:22 AM EST     Moonset
Sat -- 07:02 AM EST     Sunrise
Sat -- 08:44 AM EST     0.00 knots Slack
Sat -- 11:38 AM EST     1.15 knots Max Flood
Sat -- 03:02 PM EST     -0.00 knots Slack
Sat -- 04:39 PM EST     Moonrise
Sat -- 05:25 PM EST     -0.55 knots Max Ebb
Sat -- 05:34 PM EST     Sunset
Sat -- 07:51 PM EST     0.00 knots Slack
Sat -- 10:35 PM EST     0.87 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50-0.4-0.9-1.2-1.3-1.2-1-0.50.20.81.11.10.90.50-0.4-0.5-0.5-0.30.10.50.80.8

Weather Map
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wmap_A
GEOS Local Image of    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
Ground Weather Radar Station Tampa Bay Area, FL
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Gulf Stream Current



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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.