Wednesday, December11, 2019
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Marine Weather and Tides
Dunedin, FL

Version 3.4
NOTICE
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:10AMSunset 5:37PM Wednesday December 11, 2019 12:46 AM EST (05:46 UTC) Moonrise 5:25PMMoonset 6:30AM Illumination 100% Phase: Full Moon; Moon at 14 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- 826 Pm Est Tue Dec 10 2019
Rest of tonight..Southeast winds around 5 knots. Bay and inland waters smooth. A slight chance of showers in the evening. A chance of showers after midnight. Patchy sea fog after midnight. Areas of fog toward morning.
Wednesday..East winds around 5 knots then becoming northeast around 10 knots in the afternoon. Bay and inland waters a light chop. Areas of sea fog early in the morning. A chance of showers until late afternoon. A slight chance of showers late in the afternoon.
Wednesday night..Northeast winds around 15 knots. Bay and inland waters a moderate chop.
Thursday..Northeast winds around 15 knots. Bay and inland waters a moderate chop. A slight chance of showers in the afternoon.
Thursday night..East winds around 10 knots. Bay and inland waters a light chop.
Friday..Southeast winds around 5 knots then becoming southwest in the afternoon. Bay and inland waters smooth. A slight chance of showers in the morning, then a chance of showers in the afternoon.
Friday night..South winds around 10 knots. Bay and inland waters a light chop. A chance of showers.
Saturday..West winds around 10 knots. Bay and inland waters a light chop. A chance of showers in the morning, then a slight chance of showers in the afternoon.
Saturday night..Northwest winds around 10 knots then becoming north around 5 knots after midnight. Bay and inland waters a light chop.
Sunday..North winds around 5 knots. Bay and inland waters smooth.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 826 Pm Est Tue Dec 10 2019
Synopsis.. A cold front will move into the northern waters on Wednesday, and then into the central waters Wednesday night where it will stall out through Thursday. The potential exists tonight for sea fog, which may eventually extend south to the mouth of tampa bay. SEa fog may persist through Wednesday morning over the cooler northern shelf waters. As the front moves into the area increasing northeast winds and seas are expected, with a period of cautionary or near advisory level conditions possible Wednesday afternoon into Thursday morning, especially across the central and northern waters.


7 Day Forecast for Marine Location Near Dunedin, FL
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location: 28.01, -82.82     debug


Area Discussion for - Tampa Bay, FL
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FXUS62 KTBW 110539 AFDTBW

Area Forecast Discussion National Weather Service Tampa Bay Ruskin FL 1239 AM EST Wed Dec 11 2019

AVIATION. Patchy fog and low stratus will continue to develop through just after sunrise this morning, with extended periods of MVFR-LIFR conditions expected through at least 14z. The MVFR ceilings will then likely linger through the rest of the morning. Even as ceilings lift out, isolated showers cannot be completely ruled out at any time after sunrise, and could cause brief periods of reduced flight categories. Another round of MVFR or lower ceilings will develop after around 00-02z this evening.

Prev Discussion. /issued 726 PM EST Tue Dec 10 2019/

UPDATE . The forecast for tonight and tomorrow can be summed up in one word: messy. By far, the biggest concern is for fog. Ahead of an advancing cold front, the air is very close to saturation. Areas of fog are expected to develop across most, if not all, of the region in the overnight hours. The potential does exist for dense fog, but certainty is not high enough yet to mention. This will be assessed overnight and through the early hours of tomorrow.

In addition to the fog, low clouds and rain showers will be intermingled. Ascent along and ahead of the cold front is not particularly good, but good enough to support at least some shallow shower activity. In fact, a few showers are currently underway across portions of the interior. These showers are weak and will likely be brief. Additional showers that form will likely exhibit the same characteristics.

Low clouds will likely hang around for much of the day, and the front will also help to usher in additional unsettled weather lasting into the weekend. Minor tweaks to POPs have been made for the next couple hours, and the forecast has been updated to reflect a higher likelihood for more fog. Otherwise, the forecast remains on track and no additional changes have been made.

MARINE . Showers and the potential for sea fog exist tonight across much of the coastal waters as a front approaches. Behind the front, a north wind will begin to increase, bringing winds up to cautionary/advisory criteria by tomorrow night.

Preliminary Point Temps/PoPs. TPA 78 62 79 65 / 30 10 20 10 FMY 84 66 83 66 / 40 30 30 10 GIF 78 61 78 65 / 30 20 40 20 SRQ 81 64 81 64 / 30 10 20 10 BKV 75 59 77 62 / 30 10 20 20 SPG 76 64 76 66 / 30 10 20 10

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

AVIATION . Fleming


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CWBF1 - 8726724 - Clearwater Beach, FL 2 mi47 min S 7 G 8.9 73°F 71°F1019.9 hPa (+0.0)
FHPF1 - Fred Howard Park, FL 10 mi113 min S 6 G 6 71°F 1020.6 hPa
OPTF1 - 8726607 - Old Port Tampa, FL 18 mi47 min SE 2.9 G 4.1 71°F 69°F1020 hPa (+0.4)
CLBF1 20 mi113 min S 1.9 G 4.1 73°F 1019.3 hPa
SAPF1 - 8726520 - St. Petersburg, FL 20 mi47 min WSW 1 G 2.9 72°F 68°F1020.1 hPa (+0.3)
MCYF1 22 mi47 min 71°F
TSHF1 - 8726667 - East Bay Causeway, FL 22 mi53 min Calm G 0
GCTF1 23 mi47 min 70°F 1019.9 hPa (+0.3)68°F
MTBF1 27 mi47 min SSW 6 G 6 70°F 1019.9 hPa (+0.0)68°F
PMAF1 29 mi47 min 72°F 69°F1019.7 hPa (+0.0)
42098 30 mi47 min 70°F1 ft
ARPF1 - APK - Aripeka, FL 30 mi113 min Calm G 1 76°F 1019.8 hPa

Wind History for Clearwater Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
St. Petersburg/Clearwater Airport, FL10 mi54 minSW 69.00 miPartly Cloudy73°F71°F94%1019.7 hPa
Tampa, Tampa International Airport, FL16 mi54 minN 010.00 miPartly Cloudy72°F70°F94%1020 hPa
Macdill Air Force Base, Fl., FL19 mi2.8 hrsSW 310.00 miFair70°F67°F94%1019.9 hPa
Albert Whitted Airport, FL19 mi54 minWSW 410.00 miMostly Cloudy73°F70°F90%1019.2 hPa
Tampa, Peter O Knight Airport, FL21 mi52 minN 05.00 miOvercast with Haze0°F0°F%1020.3 hPa

Link to 5 minute data for KPIE

Wind History from PIE (wind in knots)
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Last 24hrCalmCalmCalmCalmN3CalmCalmSE6SE7SE7SE9S10S10S16
G21
S17S14S14S10S9S8S7S4S3SW6
1 day agoE5SE7SE7SE6SE5SE6SE7SE7SE10S11SE10S11S11S9S8S9S8SW5S4SW3CalmCalmCalmE5
2 days agoE6E5E6NE5NE6NE4NE3NE4E5E4E5E9SE11SE9SE6SE5SE4SW6SW3N3NE4E3SE6E5

Tide / Current Tables for Dunedin, St. Joseph Sound, Florida
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Dunedin
Click for Map
Wed -- 05:18 AM EST     -0.45 feet Low Tide
Wed -- 06:30 AM EST     Moonset
Wed -- 07:12 AM EST     Sunrise
Wed -- 11:47 AM EST     2.38 feet High Tide
Wed -- 05:04 PM EST     0.85 feet Low Tide
Wed -- 05:24 PM EST     Moonrise
Wed -- 05:36 PM EST     Sunset
Wed -- 10:39 PM EST     2.57 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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21.50.90.3-0.2-0.4-0.4-00.61.31.92.32.42.21.81.310.811.31.82.22.52.5

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
Wed -- 01:12 AM EST     -0.00 knots Slack
Wed -- 05:34 AM EST     -1.38 knots Max Ebb
Wed -- 06:28 AM EST     Moonset
Wed -- 07:10 AM EST     Sunrise
Wed -- 09:35 AM EST     0.00 knots Slack
Wed -- 12:32 PM EST     1.21 knots Max Flood
Wed -- 04:13 PM EST     -0.00 knots Slack
Wed -- 05:23 PM EST     Moonrise
Wed -- 05:35 PM EST     Sunset
Wed -- 06:12 PM EST     -0.43 knots Max Ebb
Wed -- 08:17 PM EST     0.00 knots Slack
Wed -- 11:10 PM EST     0.97 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.1-0.4-0.9-1.2-1.4-1.4-1.2-0.9-0.40.30.91.21.210.50.1-0.3-0.4-0.4-0.10.30.71

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 (0,6,7,8)
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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.