Friday, December6, 2019
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Marine Weather and Tides
Greenbriar, 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 7:07AMSunset 5:36PM Friday December 6, 2019 4:36 PM EST (21:36 UTC) Moonrise 2:22PMMoonset 1:54AM Illumination 75% Phase: Waxing Gibbous; Moon at 10 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- 258 Pm Est Fri Dec 6 2019
Tonight..North winds around 5 knots then becoming northeast after midnight. Bay and inland waters smooth.
Saturday..Northeast winds around 5 knots. Bay and inland waters smooth.
Saturday night..Northeast winds around 10 knots. Bay and inland waters a light chop.
Sunday..East winds around 10 knots diminishing to around 5 knots in the afternoon. Bay and inland waters a light chop.
Sunday night..Southeast winds around 5 knots increasing to around 10 knots after midnight. Bay and inland waters a light chop.
Monday..Southeast winds around 10 knots then becoming south in the afternoon. Bay and inland waters a light chop.
Monday night..Southwest winds around 5 knots then becoming southeast after midnight. Bay and inland waters smooth.
Tuesday..South winds around 10 knots then becoming southwest in the afternoon. Bay and inland waters a light chop.
Tuesday night..Southwest winds around 5 knots then becoming northwest after midnight. Bay and inland waters smooth.
Wednesday..North winds around 10 knots. Bay and inland waters a light chop. A slight chance of showers.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 258 Pm Est Fri Dec 6 2019
Synopsis..A weak area of low pressure will move into the gulf on Saturday bringing with it a chance of some showers, especially across the northern waters. This low will weaken and dissipate on Sunday as surface high pressure builds down the eastern seaboard. The high will move east into the atlantic early next week with the ridge axis extending back to the southwest across the central waters with a light southeast to southerly wind flow expected. A cold front will approach the northern waters late Tuesday and then move south through the waters Tuesday night into early Wednesday with some showers along and ahead of it.


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 061920 AFDTBW

Area Forecast Discussion National Weather Service Tampa Bay Ruskin FL 220 PM EST Fri Dec 6 2019

DISCUSSION. A short wave trough will pass by to the north of the forecast area tonight with a weak surface low reflection and cold front lingering across the northeast Gulf through Saturday. Some low shower chances (Pops around 20%) will be possible mainly across the northern Gulf waters and Levy county during Saturday and early Saturday night associated with these features, otherwise pleasant dry weather will continue through Sunday as the weak low washes out and surface high pressure builds down the eastern seaboard through the period.

During Monday and Tuesday high pressure from the Atlantic extending southwest across the central peninsula will maintain dry weather with a southeast to southerly wind flow supporting warmer temperatures. Another cold front will approach from the west Tuesday night with the front moving south through the region during Tuesday night and early on Wednesday. Limited moisture accompany this next front should keep overall rain chances on the low side (Pops 20-30%) with its passage. Breezy dry pleasant weather will return Wednesday night through Friday as strong surface high pressure builds in along the eastern seaboard.

After one more night of cool temperatures tonight with lows falling into the mid 40s across the Nature Coast, and upper 40s to lower 50s central and south moderating temperatures can be expected as we move into the weekend and into early next week with overnight lows in the 50s and 60s from north to south with daytime highs in mid to upper 70s during the weekend, and then upper 70s to lower 80s during Monday and Tuesday, before falling back to near normal during Thursday and Friday in the wake of the front.

AVIATION. VFR will prevail during the next 24 hours. Light and variable winds will become west at 6 to 8 knot through the remainder of the afternoon. Light and variable winds will return after 00Z tonight, then northeast winds around 5 knots are expected after 14Z on Saturday becoming west at the coastal sites during the afternoon.

MARINE. A weak area of low pressure will move into the Gulf on Saturday bringing with it a chance of some showers, especially across the northern waters. This low will weaken and dissipate on Sunday as surface high pressure builds down the eastern seaboard. The high will move east into the Atlantic early next week with the ridge axis extending back to the southwest across the central waters with a light southeast to southerly wind flow expected. A cold front will approach the northern waters late Tuesday and then move south through the waters Tuesday night into early Wednesday. Southwest winds ahead of the front will shift to the northwest and north in the wake of the front on Wednesday with an uptick in speeds to near Cautionary or low end Small Craft levels as the gradient tightens in responds to strong surface high pressure building in over the lower Mississippi valley and southeastern states.

FIRE WEATHER. Humidity values are forecast to remain above critical levels through the upcoming weekend with no Red Flag conditions expected.

Preliminary Point Temps/PoPs. TPA 55 74 60 77 / 0 0 0 0 FMY 54 78 60 79 / 0 0 0 0 GIF 50 75 58 78 / 0 0 0 0 SRQ 53 74 60 78 / 0 0 0 0 BKV 46 74 55 78 / 0 10 10 0 SPG 58 73 62 76 / 0 0 0 0

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

DISCUSSION/AVIATION/MARINE/FIRE WEATHER . 57/McMichael DECISION SUPPORT . 19/Hurt


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CWBF1 - 8726724 - Clearwater Beach, FL 4 mi55 min N 2.9 G 2.9 67°F 68°F1021.3 hPa
FHPF1 - Fred Howard Park, FL 9 mi103 min Calm G 1 69°F 1021.7 hPa
OPTF1 - 8726607 - Old Port Tampa, FL 16 mi49 min N 2.9 G 4.1
SAPF1 - 8726520 - St. Petersburg, FL 19 mi49 min WNW 5.1 G 7 73°F 69°F1021.1 hPa
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 19 mi49 min SW 1.9 G 4.1
TSHF1 - 8726667 - East Bay Causeway, FL 19 mi55 min W 2.9 G 7
CLBF1 20 mi103 min WSW 5.1 G 7 70°F 1020 hPa
MCYF1 20 mi49 min 69°F
GCTF1 22 mi55 min 69°F 1020.9 hPa51°F
MTBF1 27 mi55 min W 2.9 G 2.9 68°F 1021.2 hPa47°F
ARPF1 - APK - Aripeka, FL 29 mi103 min NW 5.1 G 6 68°F 1021.3 hPa
PMAF1 29 mi49 min 67°F 69°F1021 hPa
42098 31 mi37 min 69°F1 ft

Wind History for Clearwater Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
St. Petersburg/Clearwater Airport, FL9 mi44 minN 510.00 miFair73°F46°F38%1021 hPa
Tampa, Tampa International Airport, FL13 mi44 minW 310.00 miFair70°F48°F46%1021.2 hPa
Macdill Air Force Base, Fl., FL17 mi1.7 hrsSW 310.00 miFair71°F44°F39%1021 hPa
Tampa, Peter O Knight Airport, FL18 mi42 minWNW 44.00 miPartly Cloudy with Haze72°F48°F44%1021.3 hPa
Albert Whitted Airport, FL19 mi44 minNW 610.00 miFair72°F44°F37%1020.3 hPa
Tampa, Vandenberg Airport, FL22 mi42 minWNW 310.00 miFair72°F44°F38%1021.3 hPa

Link to 5 minute data for KPIE

Wind History from PIE (wind in knots)
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Last 24hrN3N6N7N5NE6NE5NE5N5NE5NE4NE4NE4E4CalmCalmCalmE3NE3NE5NE5NE6E5NE5N5
1 day agoNW8N6CalmCalmS3S4CalmS3CalmCalmCalmNE4NE5N8N8NE7N6N6N7N6N3NE5NE4NE3
2 days agoN5CalmCalmCalmCalmS3S4CalmS4S4W4W6NW7NW9N11N7N8NW12N12NW12NW11NW7NW7NW11

Tide / Current Tables for Dunedin, St. Joseph Sound, Florida
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Dunedin
Click for Map
Fri -- 01:53 AM EST     0.69 feet Low Tide
Fri -- 01:54 AM EST     Moonset
Fri -- 07:08 AM EST     Sunrise
Fri -- 08:04 AM EST     1.79 feet High Tide
Fri -- 01:46 PM EST     0.77 feet Low Tide
Fri -- 02:22 PM EST     Moonrise
Fri -- 05:35 PM EST     Sunset
Fri -- 07:59 PM EST     2.08 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90.70.70.811.21.51.71.81.71.51.310.80.80.91.11.51.822.121.71.4

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 -- 01:53 AM EST     Moonset
Fri -- 02:24 AM EST     -0.76 knots Max Ebb
Fri -- 05:32 AM EST     0.00 knots Slack
Fri -- 07:07 AM EST     Sunrise
Fri -- 08:11 AM EST     0.63 knots Max Flood
Fri -- 11:05 AM EST     -0.00 knots Slack
Fri -- 02:14 PM EST     -0.66 knots Max Ebb
Fri -- 02:21 PM EST     Moonrise
Fri -- 05:30 PM EST     0.00 knots Slack
Fri -- 05:34 PM EST     Sunset
Fri -- 08:33 PM EST     0.80 knots Max Flood
Fri -- 11:38 PM EST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.3-0.6-0.8-0.7-0.6-0.20.20.50.60.60.40-0.3-0.6-0.7-0.6-0.5-0.20.20.60.80.80.60.3

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
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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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.