Sunday, January17, 2021
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Marine Weather and Tides
Indian Rocks 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 7:21AMSunset 6:00PM Sunday January 17, 2021 3:28 AM EST (08:28 UTC) Moonrise 10:39AMMoonset 10:29PM Illumination 16% Phase: Waxing Crescent; Moon at 4 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- 236 Am Est Sun Jan 17 2021
Today..West winds around 5 knots then becoming south late in the morning, then becoming southwest around 5 knots in the afternoon. Bay and inland waters smooth.
Tonight..Northwest winds around 5 knots increasing to around 10 knots toward morning. Bay and inland waters a light chop.
Monday..North winds around 10 knots. Bay and inland waters a light chop.
Monday night..Northeast winds around 10 knots. Bay and inland waters a light chop.
Tuesday..Northeast winds around 10 knots. Bay and inland waters a light chop.
Tuesday night..Northeast winds around 10 knots. Bay and inland waters a light chop.
Wednesday..North winds around 10 knots. Bay and inland waters a light chop.
Wednesday night..East winds around 10 knots. Bay and inland waters a light chop.
Thursday..Southeast winds around 5 knots then becoming south in the afternoon. Bay and inland waters smooth.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 236 Am Est Sun Jan 17 2021
Synopsis.. Winds continue to weaken overnight as the pressure gradient slackens. However, seas are slower to improve with less than ideal boating conditions persisting into today, especially offshore. High pressure builds into our north by Tuesday with winds shifting out of the east. Winds will be elevated, but will likely not warrant any headlines through late week.


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


Area Discussion for - Tampa Bay, FL
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FXUS62 KTBW 170712 AFDTBW

Area Forecast Discussion National Weather Service Tampa Bay Ruskin FL 212 AM EST Sun Jan 17 2021

DISCUSSION. Colder air has arrived overnight as building high pressure helps to drive in cooler/drier air. This morning, lows will bottom out near the freezing mark across Levy county, low mid 30s across the remainder of the Nature Coast, with 40s elsewhere across West Central and Southwest FL. A Frost Advisory remains in effect for inland Levy county through 10am. Patchy frost is possible across elsewhere from Hernando county northward. Elsewhere across West Central FL, our temperatures at sunrise will be dependent in part by the cloud cover that is ongoing. The stratus deck we see can be explained from the 00Z RAOB from our office sampled of a very dry/warm air above 850mb. Beneath this inversion is a moist layer, hence the persistent overcast layer around 4-4.5 thousand feet. Not everyone is experiencing these clouds of course, and cloud free locations can expect to see cooler morning temps and warmer afternoon highs. Nevertheless, high temperatures have been kept a couple degrees below most guidance to account for what these lower clouds may have on daytime surface heating..

High pressure builds into the area . Meanwhile another shortwave trough will dig south across the Tennessee Valley tonight into tomorrow morning. This will reinforce the cool/dry air across the region with PWATs remaining less than 0.5 inches and temps below normal through Tuesday. Expect the coolest weather to come Tuesday morning as lows dip into the 30s north of I-4 and low/mid 40s everywhere else. Unfortunately (or fortunately depending on what your preference is), weak ridging will prevail by mid week, and temperatures will steadily climb to well above average with highs in the mid/upper 70s. The addition of low-level moisture will eventually result in lows only getting down to the mid/upper 50s through the weekend. On the plus side, the rain free conditions are expected through next Sunday.

Most recent long range deterministic guidance shows dry cold front moving through out of the north on Saturday. At the moment this does not look to be much of a colder airmass . However, slightly drier air will filter into the air and drop dewpoints back into the 50s.

AVIATION. (Valid 06Z) Relatively light westerly winds 7 knots or less are expected through the period. Prevailing VFR BKN/OVC stratus deck between 035-050 will hang around all terminals. Periods of MVFR ceilings cannot be ruled out especially later in the TAF period, but confidence in this precludes any mention of lower flight categories at this time.

MARINE. Winds continue to weaken overnight as the pressure gradient slackens. However, seas are slower to decrease with less than ideal conditions persisting today. High pressure builds into our north by Tuesday with winds shifting out of the east. Winds will be elevated, but will likely not warrant any headlines through late week.

FIRE WEATHER. Main concern today will be low afternoon dispersions. RH values are expected to drop below 35% across the Nature Coast tomorrow, and below critical levels across much West Central and Southwest FL on Tuesday. Winds, will be low enough to preclude any Red Flag conditions, however. No rain is forecast across the area for the next 5 days with cool and dry conditions persisting through mid week before a gradual warming trend into the weekend.

Preliminary Point Temps/PoPs. TPA 61 53 66 44 / 0 0 0 0 FMY 66 55 70 46 / 0 0 0 0 GIF 62 49 67 42 / 0 0 0 0 SRQ 63 54 67 44 / 0 0 0 0 BKV 61 46 64 36 / 0 0 0 0 SPG 62 55 64 48 / 0 0 0 0

TBW WATCHES/WARNINGS/ADVISORIES. FL . High Rip Current Risk through this evening for Coastal Charlotte- Coastal Hillsborough-Coastal Lee-Coastal Manatee-Coastal Sarasota-Pinellas.

Frost Advisory until 9 AM EST this morning for Inland Levy.

Gulf waters . None.

DISCUSSION/AVIATION/MARINE/FIRE WEATHER . 42/Norman DECISION SUPPORT . 18/Fleming


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CWBF1 - 8726724 - Clearwater Beach, FL 7 mi58 min WNW 8.9 G 12 60°F 62°F1016.9 hPa
CLBF1 15 mi94 min WNW 2.9 G 6 60°F 1016.1 hPa
SAPF1 - 8726520 - St. Petersburg, FL 17 mi58 min WNW 2.9 G 5.1 59°F 61°F1016.8 hPa
OPTF1 - 8726607 - Old Port Tampa, FL 18 mi58 min NW 5.1 G 6 59°F 62°F1016.8 hPa
FHPF1 - Fred Howard Park, FL 19 mi94 min NW 6 G 8 59°F 1017.3 hPa
42098 21 mi32 min 62°F5 ft
GCTF1 21 mi58 min 60°F
MTBF1 22 mi58 min NW 8.9 G 11 60°F 1016.4 hPa
SKCF1 24 mi64 min NNW 5.8 G 7.8
EBEF1 25 mi58 min 58°F 64°F1016.4 hPa
PMAF1 25 mi58 min 60°F 62°F1016.5 hPa
TSHF1 - 8726667 - East Bay Causeway, FL 25 mi70 min N 1.9 G 2.9
ARPF1 - APK - Aripeka, FL 39 mi94 min Calm G 1.9 57°F 1016.7 hPa

Wind History for Clearwater Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
St. Petersburg/Clearwater Airport, FL11 mi35 minWNW 310.00 miOvercast58°F44°F60%1016.6 hPa
Albert Whitted Airport, FL16 mi35 minNW 310.00 miOvercast59°F46°F62%1016.1 hPa
Macdill Air Force Base, Fl., FL20 mi32 minW 310.00 miOvercast57°F45°F64%1016.9 hPa
Tampa, Tampa International Airport, FL20 mi35 minN 010.00 miMostly Cloudy57°F46°F67%1016.7 hPa
Tampa, Peter O Knight Airport, FL23 mi33 minN 010.00 miOvercast57°F45°F63%1016.9 hPa

Link to 5 minute data for KPIE

Wind History from PIE (wind in knots)
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1 day agoCalmCalmSE3S4S9S10S10S13S14
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2 days agoCalmCalmCalmCalmCalmS4CalmNE3NE54NW8NW7NW7W4W6W4SW3CalmCalmCalmCalmCalmS4S3

Tide / Current Tables for Indian Rocks Beach (inside), Florida
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Indian Rocks Beach (inside)
Click for Map
Sun -- 02:33 AM EST     2.15 feet High Tide
Sun -- 07:23 AM EST     Sunrise
Sun -- 09:22 AM EST     -0.07 feet Low Tide
Sun -- 10:38 AM EST     Moonrise
Sun -- 03:34 PM EST     1.99 feet High Tide
Sun -- 06:00 PM EST     Sunset
Sun -- 09:29 PM EST     0.53 feet Low Tide
Sun -- 10:29 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.51.92.12.11.91.510.50.2-0.1-00.30.71.21.71.921.81.41.10.70.50.60.7

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
Sun -- 02:27 AM EST     0.92 knots Max Flood
Sun -- 05:18 AM EST     -0.00 knots Slack
Sun -- 07:22 AM EST     Sunrise
Sun -- 09:08 AM EST     -1.22 knots Max Ebb
Sun -- 10:37 AM EST     Moonrise
Sun -- 12:57 PM EST     0.00 knots Slack
Sun -- 03:52 PM EST     1.01 knots Max Flood
Sun -- 05:58 PM EST     Sunset
Sun -- 07:15 PM EST     -0.00 knots Slack
Sun -- 09:55 PM EST     -0.72 knots Max Ebb
Sun -- 10:28 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.10.60.90.90.60.1-0.3-0.8-1.1-1.2-1.2-0.9-0.500.60.910.90.60.1-0.3-0.6-0.7-0.6

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Ground Weather Radar Station



Gulf Stream Current



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