Friday, July10, 2020
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Marine Weather and Tides
Indian Rocks 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 6:41AMSunset 8:31PM Friday July 10, 2020 2:07 AM EDT (06:07 UTC) Moonrise 11:32PMMoonset 10:42AM Illumination 77% Phase: Waning Gibbous; Moon at 19 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- 845 Pm Edt Thu Jul 9 2020
Rest of tonight..West winds around 10 knots. Bay and inland waters a light chop. Scattered showers and isolated Thunderstorms after midnight.
Friday..West winds around 10 knots increasing to 10 to 15 knots in the afternoon. Bay and inland waters a light to moderate chop. Scattered Thunderstorms.
Friday night..West winds around 10 knots. Bay and inland waters a light chop. Scattered Thunderstorms.
Saturday..West winds around 10 knots increasing to 10 to 15 knots in the afternoon. Bay and inland waters a light to moderate chop. Scattered Thunderstorms. Numerous showers in the afternoon.
Saturday night..West winds around 10 knots. Bay and inland waters a light chop. Scattered Thunderstorms.
Sunday..West winds around 10 knots. Bay and inland waters a light chop. Numerous showers in the morning. Scattered Thunderstorms.
Sunday night..Southwest winds around 10 knots. Bay and inland waters a light chop. Isolated Thunderstorms in the evening, then scattered Thunderstorms after midnight.
Monday..Southwest winds around 10 knots then becoming west 10 to 15 knots in the afternoon. Bay and inland waters a light to moderate chop. Scattered Thunderstorms.
Monday night..Southwest winds around 10 knots. Bay and inland waters a light chop. Isolated Thunderstorms.
Tuesday..West winds around 10 knots. Bay and inland waters a light chop. Scattered Thunderstorms.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 845 Pm Edt Thu Jul 9 2020
Synopsis..Westerly flow will continue across the coastal waters as high pressure in place shifts west and a trough of low pressure settles over the region through the weekend. High pressure then starts to build back to the north early next week. Scattered showers and Thunderstorms with locally hazardous boating conditions will be possible each day.


7 Day Forecast for Marine Location Near Indian Rocks Beach city, FL
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location: 27.89, -82.89     debug


Area Discussion for - Tampa Bay, FL
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FXUS62 KTBW 092345 AFDTBW

Area Forecast Discussion National Weather Service Tampa Bay Ruskin FL 745 PM EDT Thu Jul 9 2020

UPDATE. Another very quiet weather day as some drier air along with the west to northwest flow limited the convective coverage. This will begin to change overnight though as deeper moisture and an upper level disturbance drift southeast toward the region with scattered showers and a few thunderstorms expected to develop over the northeast Gulf of Mexico and then move into the Nature Coast and eventually reaching the Interstate 4 corridor by morning. This disturbance will continue to drift southeast across the region Friday bringing more scattered to numerous showers and thunderstorms along and ahead of it with coverage diminishing from northwest to southeast during the afternoon. Only exception may be across the northern Nature Coast late in the day where some more convection could pop up as subsidence behind the disturbance erodes. Overall the current forecast looks ok at this time.

AVIATION. VFR conditions will prevail early tonight, then some scattered showers and isolated thunderstorms could bring MVFR/local IFR conditions to TPA, PIE, LAL, and SRQ toward morning. More scattered to numerous showers and thunderstorms are expected across the area Friday with highest probabilities around Tampa Bay in the morning hours then shifting south and east during the afternoon.

MARINE. A generally westerly flow will be in place across the coastal waters through the period as high pressure over the Gulf of Mexico shifts west and a trough of low pressure digs into the area through the weekend. Weak ridging then gradually builds north over the waters for early next week. No headlines are expected through the period, but winds and seas could be higher in the vicinity of thunderstorms.

Prev Discussion. /issued 247 PM EDT Thu Jul 9 2020/

DISCUSSION . High pressure is in place over the Gulf of Mexico as an area of low pressure just off of the Carolinas coast lifts NE over the Gulf Stream. That area of low pressure has a 90 percent chance of tropical development over the next 2 days as it continue to lift away from the area and dig a trough of low pressure down over the state at the surface and aloft into the weekend. The troughing will then remain across the area through Sunday with westerly flow expected through the period and increasing rain chances with some upper energy enhancing the coverage of convection through the weekend. High pressure then starts to build north from across south Florida for early next week, with easterly flow returning by the end of the period for Thursday. Scattered to numerous showers and storms will continue to be possible through the week with the upper trough lingering through Tuesday, and then some westerly waves moving through the flow later in the week continuing to enhance rain chances. Temperatures remain a degree or two above normal with highs generally in the lower 90s each day and lows in the mid 70s to lower 80s each morning.

FIRE WEATHER . No concerns. Humidities will remain above critical levels through the period.

Preliminary Point Temps/PoPs. TPA 80 89 80 91 / 30 50 40 60 FMY 79 92 78 91 / 10 40 30 60 GIF 77 92 76 93 / 20 70 20 70 SRQ 80 90 79 92 / 20 50 40 60 BKV 76 90 76 93 / 30 60 40 70 SPG 81 88 80 90 / 30 50 40 60

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

UPDATE/AVIATION/MARINE . Close PREV DISCUSSION . Hubbard UPPER AIR/DECISION SUPPORT . Shiveley


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CWBF1 - 8726724 - Clearwater Beach, FL 7 mi49 min W 17 G 19 85°F 89°F1015 hPa
CLBF1 15 mi73 min WNW 6 G 13 84°F 1014.4 hPa
SAPF1 - 8726520 - St. Petersburg, FL 17 mi49 min WNW 9.9 G 13 84°F 87°F1015.3 hPa
OPTF1 - 8726607 - Old Port Tampa, FL 18 mi49 min W 9.9 G 12 84°F 88°F1015 hPa
FHPF1 - Fred Howard Park, FL 19 mi73 min WNW 12 G 13 85°F 1015.3 hPa
42098 21 mi41 min 87°F3 ft
GCTF1 21 mi49 min 85°F 1014.8 hPa76°F
MTBF1 22 mi49 min WNW 13 G 16 85°F 1015 hPa76°F
SKCF1 24 mi127 min W 14 G 19
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 24 mi55 min Calm G 2.9
EBEF1 25 mi79 min 85°F 90°F1014.6 hPa
PMAF1 25 mi49 min 84°F 1015 hPa
TSHF1 - 8726667 - East Bay Causeway, FL 25 mi55 min WSW 6 G 12

Wind History for Clearwater Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
St. Petersburg/Clearwater Airport, FL11 mi74 minW 1010.00 miFair85°F77°F77%1014.9 hPa
Albert Whitted Airport, FL16 mi74 minWNW 610.00 miA Few Clouds85°F78°F80%1014.4 hPa
Macdill Air Force Base, Fl., FL20 mi71 minW 610.00 miFair83°F75°F78%1015.2 hPa
Tampa, Tampa International Airport, FL20 mi74 minWNW 910.00 miA Few Clouds85°F73°F70%1014.9 hPa
Tampa, Peter O Knight Airport, FL23 mi72 minWNW 710.00 miOvercast84°F80°F89%1014.9 hPa

Link to 5 minute data for KPIE

Wind History from PIE (wind in knots)
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1 day agoW3S3W4W4W4W4NW56W10W13W11W12W14NW13W12W13NW12W12W7W8W8W7W6W7W7
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Tide / Current Tables for Indian Rocks Beach (inside), Florida
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Indian Rocks Beach (inside)
Click for Map
Fri -- 05:04 AM EDT     2.32 feet High Tide
Fri -- 06:42 AM EDT     Sunrise
Fri -- 10:38 AM EDT     1.14 feet Low Tide
Fri -- 11:42 AM EDT     Moonset
Fri -- 04:25 PM EDT     2.44 feet High Tide
Fri -- 08:30 PM EDT     Sunset
Fri -- 11:19 PM EDT     0.51 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.81.41.82.22.32.221.71.41.21.11.31.61.92.32.42.42.21.91.410.70.5

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
Fri -- 02:23 AM EDT     0.00 knots Slack
Fri -- 05:21 AM EDT     0.93 knots Max Flood
Fri -- 06:41 AM EDT     Sunrise
Fri -- 08:50 AM EDT     -0.00 knots Slack
Fri -- 11:13 AM EDT     -0.55 knots Max Ebb
Fri -- 11:41 AM EDT     Moonset
Fri -- 01:44 PM EDT     0.00 knots Slack
Fri -- 04:29 PM EDT     0.81 knots Max Flood
Fri -- 07:17 PM EDT     -0.00 knots Slack
Fri -- 08:29 PM EDT     Sunset
Fri -- 10:57 PM EDT     -1.11 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1-0.7-0.20.30.70.90.90.70.3-0.1-0.4-0.5-0.5-0.30.10.50.80.80.50.1-0.3-0.7-1-1.1

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 (2,6,7,8)
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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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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.