Monday, July13, 2020
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Marine Weather and Tides
Belleair Beach, 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 6:42AMSunset 8:31PM Monday July 13, 2020 11:23 AM EDT (15:23 UTC) Moonrise 12:31AMMoonset 1:18PM Illumination 43% Phase: Third Quarter Moon; Moon at 23 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- 930 Am Edt Mon Jul 13 2020
This afternoon..West winds 5 to 10 knots. Bay and inland waters a light chop.
Tonight..West winds 5 to 10 knots. Bay and inland waters a light chop. Isolated Thunderstorms after midnight.
Tuesday..West winds 5 to 10 knots. Bay and inland waters a light chop. Scattered Thunderstorms in the morning, then isolated Thunderstorms in the afternoon.
Tuesday night..West winds 5 to 10 knots. Bay and inland waters a light chop.
Wednesday..West winds 5 to 10 knots. Bay and inland waters a light chop. Scattered Thunderstorms in the afternoon.
Wednesday night..North winds around 5 knots. Bay and inland waters smooth.
Thursday..North winds around 10 knots. Bay and inland waters a light chop. Isolated Thunderstorms in the morning, then scattered Thunderstorms in the afternoon.
Thursday night..Northeast winds around 10 knots then becoming east in the late evening and overnight. Bay and inland waters a light chop. Isolated Thunderstorms in the evening.
Friday..East winds around 10 knots. Bay and inland waters a light chop. Isolated Thunderstorms in the morning, then numerous Thunderstorms in the afternoon.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 930 Am Edt Mon Jul 13 2020
Synopsis.. Surface high pressure over south florida will continue to bring westerly winds through Tuesday with possible showers during the early morning hours. By Wednesday, relatively light winds return with onshore sea breeze in the afternoon, as high pressure begins to move north. The rest of the week and through the weekend, easterly flow will bring showers and storms over the waters by late evening through the overnight hours. No headlines are anticipated through the period. The main threat will be associated with showers and Thunderstorms that will be capable of producing frequent lightning, locally gusty winds, and rough seas.


7 Day Forecast for Marine Location Near Belleair Beach, FL
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location: 27.94, -82.83     debug


Area Discussion for - Tampa Bay, FL
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FXUS62 KTBW 131302 AFDTBW

Area Forecast Discussion National Weather Service Tampa Bay Ruskin FL 902 AM EDT Mon Jul 13 2020

DISCUSSION UPDATE. A record low PWAT value of 1.10 has been set this morning at KTBW as dry airmass moves across the peninsula today. This will limit the amount of showers and thunderstorms through much of the day, but a few storms could develop over the water and move inland, especially across the Nature Coast and south of Charlotte County where conditions will be more favorable during the afternoon and evening hours. Westerly flow will prevail and will still feel very moist and warm with highs in the 90s and heat indices in triple digits. Otherwise, forecast remains on track.

AVIATION UPDATE. VFR conditions will continue through the period with dry airmass moving across the area limiting rainfall chances today. Westerly winds will prevail between 08-12 knots in the afternoon. The highest chances for convection remain after 15Z, and there could a few showers that develop near TPA and PIE, but kept VCSH conditions out of the forecast for now as uncertainty on storm development still exists due to the drier air.

Prev Discussion. /issued 328 AM EDT Mon Jul 13 2020/

SYNOPSIS . At the start of the work week, a longwave upper level trough resides across the eastern half of the CONUS. Several embedded shortwaves will be lifting northeast out of the Central Appalachians, resulting in a deamplification of the broader trough. This troughing pattern extends to the surface along with a diffused front that had stalled out over the Peninsula yesterday. The subtropical high will be located near Bermuda with the ridge axis well south of FL - over Cuba.

DISCUSSION . Tuesday will be a similar set up as far as low-level flow pattern goes. Moisture recovery will result in higher PoP coverage with the early morning showers coming in off the Gulf, transitioning to convective activity favoring our inland counties through the remainder of the day. Temps will be very similar to Monday's - a degree or two above climatology .

Our pattern finally shifts by Wednesday as broad surface ridging sprawls across the southeast, weakening the flow over our area. A limiting factor to convective development will be less than optimal moisture. Depending on where this small pocket of lower PWATs resides will determine who has the best chance of rain. Decided to trim down PoPs compared to model blend to reflect this. Regardless, the greatest chance of precip will be well inland, across the eastern portions of our inland counties

Thursday will be a transition day of our low-level pattern as weak east to northeast flow will be in place, along with adequate moisture to support scattered to numerous afternoon showers and storms. Moving forward into Friday through the weekend, rain chances will shift dramatically in our favor (i.e. the western half of the Peninsula) as strong east to southeast flow returns to the Sunshine State. Under this regime, the Tampa Bay area along with all of our coastal communities can expect late afternoon/evening storms, with outflow boundaries moving out over the waters around sunset. Overnight and early morning showers and storms will be possible over the waters while we are in this easterly flow . Same story for temperatures with highs in the low-mid 90s, and lows in the 70s through the remainder of the period.

MARINE . Westerly winds will continue through mid week with possible showers during the early morning hours. Weak winds return Wednesday with onshore sea breeze in the afternoon. Thursday through the weekend, east winds will favor showers and storms over the waters by late evening through the overnight hours. No headlines are anticipated through the period. The main threat will be associated with showers and thunderstorms that will be capable of producing frequent lightning, locally gusty winds, and rough seas.

FIRE WEATHER . Daily afternoon showers and thunderstorms will be capable of frequent lightning and gusty winds from outflow boundaries. Otherwise, ample low-level moisture will preclude any major fire weather concerns through the period.

Preliminary Point Temps/PoPs. TPA 92 80 91 79 / 10 20 40 10 FMY 92 78 93 77 / 30 10 20 10 GIF 94 77 94 76 / 10 10 50 20 SRQ 92 79 91 78 / 10 10 30 10 BKV 92 76 91 74 / 10 20 40 10 SPG 91 80 90 80 / 10 20 30 10

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

AVIATION UPDATE/DISCUSSION UPDATE . Delerme DISCUSSION/MARINE/FIRE WEATHER . Norman UPPER AIR/DECISION SUPPORT . Mcmichael


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CWBF1 - 8726724 - Clearwater Beach, FL 3 mi53 min W 7 G 8.9 86°F 89°F1015.1 hPa
FHPF1 - Fred Howard Park, FL 15 mi89 min W 8 G 9.9 86°F 1015.3 hPa
CLBF1 16 mi89 min W 11 G 14 86°F 1014.1 hPa
OPTF1 - 8726607 - Old Port Tampa, FL 16 mi53 min WNW 11 G 14 86°F 88°F1015.1 hPa
SAPF1 - 8726520 - St. Petersburg, FL 16 mi53 min WSW 9.9 G 16 87°F 87°F1015.3 hPa
GCTF1 20 mi53 min 87°F 1014.9 hPa75°F
SKCF1 20 mi83 min WSW 5.8 G 16
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 21 mi59 min WSW 1.9 G 4.1
TSHF1 - 8726667 - East Bay Causeway, FL 21 mi65 min SW 7 G 11
EBEF1 22 mi65 min 88°F 86°F1014.6 hPa
MTBF1 23 mi53 min W 12 G 14 86°F 1015.2 hPa77°F
42098 25 mi57 min 87°F3 ft
PMAF1 25 mi53 min 86°F 1015.3 hPa

Wind History for Clearwater Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
St. Petersburg/Clearwater Airport, FL8 mi30 minW 810.00 miA Few Clouds91°F75°F61%1014.8 hPa
Albert Whitted Airport, FL16 mi30 minWSW 710.00 miPartly Cloudy88°F78°F73%1014.2 hPa
Tampa, Tampa International Airport, FL16 mi30 minWNW 810.00 miPartly Cloudy90°F71°F54%1015 hPa
Macdill Air Force Base, Fl., FL17 mi27 minNW 810.00 miMostly Cloudy89°F75°F66%1015.2 hPa
Tampa, Peter O Knight Airport, FL20 mi28 minSW 410.00 miMostly Cloudy88°F77°F70%1015.2 hPa

Link to 5 minute data for KPIE

Wind History from PIE (wind in knots)
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1 day agoW8W10N14
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2 days agoW9NW12
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Tide / Current Tables for Clearwater, Florida
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Clearwater
Click for Map
Mon -- 01:30 AM EDT     Moonrise
Mon -- 06:08 AM EDT     2.07 feet High Tide
Mon -- 06:43 AM EDT     Sunrise
Mon -- 01:25 PM EDT     0.79 feet Low Tide
Mon -- 02:17 PM EDT     Moonset
Mon -- 07:20 PM EDT     1.70 feet High Tide
Mon -- 08:29 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.80.91.11.41.822.121.91.61.41.10.90.80.80.91.21.41.61.71.71.51.31.1

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
Mon -- 12:35 AM EDT     -0.74 knots Max Ebb
Mon -- 01:29 AM EDT     Moonrise
Mon -- 03:53 AM EDT     0.00 knots Slack
Mon -- 06:43 AM EDT     Sunrise
Mon -- 06:53 AM EDT     0.77 knots Max Flood
Mon -- 10:14 AM EDT     -0.00 knots Slack
Mon -- 01:37 PM EDT     -0.78 knots Max Ebb
Mon -- 02:16 PM EDT     Moonset
Mon -- 05:26 PM EDT     0.00 knots Slack
Mon -- 08:06 PM EDT     0.59 knots Max Flood
Mon -- 08:28 PM EDT     Sunset
Mon -- 11:01 PM EDT     -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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-0.7-0.7-0.6-0.300.40.70.80.70.40.1-0.3-0.6-0.8-0.8-0.7-0.5-0.20.20.50.60.50.30

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 (11,2,3,4)
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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 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.