Monday, January18, 2021
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Marine Weather and Tides
St. Pete Beach, 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 7:20AMSunset 6:01PM Monday January 18, 2021 8:48 AM EST (13:48 UTC) Moonrise 11:10AMMoonset 11:23PM Illumination 26% Phase: Waxing Crescent; Moon at 5 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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GMZ853 Coastal Waters From Englewood To Tarpon Springs Fl Out 20 Nm- 412 Am Est Mon Jan 18 2021
Today..North winds around 10 knots. Seas 2 to 3 feet. Bay and inland waters a light chop.
Tonight..Northeast winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop.
Tuesday..Northeast winds around 10 knots then becoming north late in the afternoon. Seas 2 feet. Bay and inland waters a light chop.
Tuesday night..Northeast winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop.
Wednesday..North winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop.
Wednesday night..Northeast winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop.
Thursday..East winds around 10 knots then becoming south in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop.
Thursday night..Southwest winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop.
Friday..Southwest winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 412 Am Est Mon Jan 18 2021
Synopsis.. High pressure building into the northern gulf of mexico will slide east towards florida tonight and Tuesday with northwest winds this morning turning to northerly by tonight. The ridge will then hold north of the waters through the rest of the week, favoring east and northeast winds.


7 Day Forecast for Marine Location Near St. Pete Beach, FL
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location: 27.68, -82.86     debug


Area Discussion for - Tampa Bay, FL
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FXUS62 KTBW 180838 AFDTBW

Area Forecast Discussion National Weather Service Tampa Bay Ruskin FL 338 AM EST Mon Jan 18 2021

DISCUSSION. Early morning IR satellite imagery is showing bands of cirrus clouds streaming across much of the forecast area in the wake of the recent cold front, although clear skies over the northern Nature Coast is allowing some cooler low temperatures there, with patchy frost expected to develop through sunrise. Surface high pressure building into the Gulf of Mexico will slide east into Florida through tonight, with light northerly flow and clear skies allowing for another night of cool temperatures leading into Tuesday morning. As a result, areas of frost are expected across the Nature Coast Tuesday morning, and a freeze warning is in effect for Levy and inland portions of Citrus and Hernando counties. Other spots farther south could also see a brief freeze as well.

Weak ridging aloft will build into the Gulf Tuesday through the rest of the week, with the surface ridge holding across Florida and the northern Gulf of Mexico. This will lead to moderating temperatures and pleasant weather conditions. A weak cold front will approach the area late in the week, with isolated rain chances Friday through the weekend. However, the front is not currently forecast to make a clean passage through the state, so temperatures are forecast to remain slightly above normal through the weekend.

AVIATION. VFR conditions should hold through the next 24 hours, although some isolated MVFR ceilings could cause brief disruptions through the rest of the morning.

MARINE. High pressure building into the Gulf of Mexico from the northwest will setup northwest to north winds near exercise caution levels this morning, gradually subsiding during the afternoon. Winds will turn to easterly and increase again tonight into Tuesday morning before relaxing through the afternoon. Easterly flow will then hold through the rest of the week.

FIRE WEATHER. Relative humidity percentages will drop into the low 30s in some spots this afternoon and again Tuesday afternoon. However, wind speeds will not be high enough to trigger a Red Flag Warning. High dispersion indices are forecast for this afternoon, mostly from around Interstate 4 north through the Nature Coast counties.

Preliminary Point Temps/PoPs. TPA 67 45 68 47 / 0 0 0 0 FMY 71 47 72 51 / 0 0 0 0 GIF 68 42 70 47 / 0 0 0 0 SRQ 69 42 70 48 / 0 0 0 0 BKV 65 32 68 39 / 0 0 0 0 SPG 66 50 66 52 / 0 0 0 0

TBW WATCHES/WARNINGS/ADVISORIES. FL . Freeze Warning from 3 AM to 8 AM EST Tuesday for Coastal Levy- Inland Citrus-Inland Hernando-Inland Levy.

Gulf waters . None.

Fleming


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
42098 7 mi52 min 61°F2 ft
CLBF1 10 mi114 min ENE 1.9 G 2.9 52°F 1019.9 hPa
MTBF1 14 mi54 min E 6 G 7 57°F 1021 hPa51°F
SAPF1 - 8726520 - St. Petersburg, FL 14 mi54 min NE 1.9 G 2.9 55°F 62°F1021.4 hPa
PMAF1 16 mi54 min 53°F 59°F1021.2 hPa
GCTF1 19 mi54 min 58°F 50°F
OPTF1 - 8726607 - Old Port Tampa, FL 20 mi54 min E 2.9 G 4.1 54°F 62°F1021.4 hPa
CWBF1 - 8726724 - Clearwater Beach, FL 21 mi54 min E 4.1 G 5.1 55°F 62°F1021.4 hPa
SKCF1 28 mi54 min NE 3.9 G 5.8
EBEF1 29 mi54 min 52°F 62°F1021 hPa
TSHF1 - 8726667 - East Bay Causeway, FL 29 mi60 min NE 1.9 G 1.9
FHPF1 - Fred Howard Park, FL 33 mi114 min ESE 1.9 G 2.9 52°F 1021.3 hPa
VENF1 - Venice, FL 47 mi48 min NE 7 G 8 55°F 62°F1020.9 hPa (+1.9)55°F
42022 48 mi78 min NNW 12 G 16 69°F1021.1 hPa

Wind History for C-Cut, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Albert Whitted Airport, FL14 mi55 minN 010.00 miFair56°F54°F93%1020.7 hPa
St. Petersburg/Clearwater Airport, FL18 mi55 minN 010.00 miFair50°F49°F96%1021.2 hPa
Macdill Air Force Base, Fl., FL22 mi52 minENE 410.00 miFair47°F44°F92%1021.3 hPa

Link to 5 minute data for KSPG

Wind History from SPG (wind in knots)
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Last 24hrNE10E6NE6E5E5E3E3NE3CalmCalmNE4N4CalmNW3N4NE5N4N3CalmCalmN3CalmCalmCalm
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2 days agoS11S11S10S12S16S11S14S11S11
G19
SW116NW9W3NW4CalmNW4W3Calm36NW53W8N11

Tide / Current Tables for Pass-a-Grille Beach, Florida
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Pass-a-Grille Beach
Click for Map
Mon -- 03:06 AM EST     1.41 feet High Tide
Mon -- 07:22 AM EST     Sunrise
Mon -- 10:10 AM EST     -0.01 feet Low Tide
Mon -- 11:08 AM EST     Moonrise
Mon -- 04:43 PM EST     1.21 feet High Tide
Mon -- 06:00 PM EST     Sunset
Mon -- 10:30 PM EST     0.47 feet Low Tide
Mon -- 11:22 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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11.21.31.41.41.20.90.60.30.1-000.20.50.811.21.21.110.80.60.50.5

Tide / Current Tables for Tampa Bay Entrance, Florida Current
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Tampa Bay Entrance
Click for Map
Mon -- 02:01 AM EST     0.61 knots Max Flood
Mon -- 04:20 AM EST     -0.00 knots Slack
Mon -- 07:22 AM EST     Sunrise
Mon -- 08:28 AM EST     -1.95 knots Max Ebb
Mon -- 11:08 AM EST     Moonrise
Mon -- 12:34 PM EST     0.00 knots Slack
Mon -- 03:48 PM EST     1.24 knots Max Flood
Mon -- 06:01 PM EST     Sunset
Mon -- 07:11 PM EST     -0.00 knots Slack
Mon -- 09:36 PM EST     -0.65 knots Max Ebb
Mon -- 11:22 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.50.60.50.2-0.4-1-1.6-1.9-1.9-1.6-1-0.40.30.81.21.210.60.1-0.4-0.6-0.6-0.5

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



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.