Saturday, October16, 2021
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Marine Weather and Tides
Madeira Beach, FL

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 7:31AMSunset 7:02PM Saturday October 16, 2021 5:27 AM EDT (09:27 UTC) Moonrise 4:11PMMoonset 2:44AM Illumination 77% 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- 339 Am Edt Sat Oct 16 2021
Today..East winds around 5 knots then becoming northwest late in the morning, then increasing to around 10 knots in the afternoon. Bay and inland waters a light chop.
Tonight..Northwest winds 5 to 10 knots then becoming north around 15 knots after midnight. Bay and inland waters a moderate chop. A slight chance of Thunderstorms in the late evening and early morning.
Sunday..North winds around 15 knots. Bay and inland waters a moderate chop.
Sunday night..Northeast winds around 15 knots. Bay and inland waters a moderate chop.
Monday..Northeast winds around 15 knots. Bay and inland waters a moderate chop.
Monday night..East winds around 10 knots. Bay and inland waters a light chop.
Tuesday..East winds around 10 knots. Bay and inland waters a light chop.
Tuesday night..East winds around 10 knots. Bay and inland waters a light chop.
Wednesday..East winds around 10 knots. Bay and inland waters a light chop.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 339 Am Edt Sat Oct 16 2021
Synopsis.. A diffuse cold front will pass over the waters from this evening into early Sunday with some deteriorating marine conditions likely. Cautionary headlines are in place for tonight with advisory headlines expected Sunday into Monday. High pressure builds in behind the front then moves east with winds diminishing and veering during the week.


7 Day Forecast for Marine Location Near Madeira Beach, FL
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location: 27.79, -82.78     debug


Area Discussion for - Tampa Bay, FL
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FXUS62 KTBW 160726 AFDTBW

Area Forecast Discussion National Weather Service Tampa Bay Ruskin FL 326 AM EDT Sat Oct 16 2021

DISCUSSION. Today-Sun: Upper ridging over FL retrogrades into the western Gulf of Mexico. An upper low near James Bay, Canada shifts into northern Quebec Province. A longwave trough extending south from this low initially reaches the north-central Gulf coast but pivots northeastward . across the eastern seaboard to the Atlantic coastal waters. At the surface high pressure with a relaxed gradient across the area slowly slips east. A frontal boundary accompanying the upper trough is propelled east and southeast . into north-central FL this evening then along the Florida Keys late Sun. High pressure builds in behind the front . with it's center tracking from the southern high plains to the lower Mississippi Valley.

Skies are mostly clear and will prevail through out the day. Patchy fog has already formed at a few Nature Coast locations . expect the fog to spread during the rest of the early morning hours . mainly to inland areas . but remain limited. The approaching frontal boundary is rather staved for moisture but could still produce isolated showers or a storm or two. These are expected this afternoon and early evening for parts of the Nature Coast . around the Tampa Bay Region in the late evening hours . and brushing along coastal southwest FL during the early morning hours. Sunday will be under the influence of a dry and stable northwest to north flow . rain free under clear/sunny skies. Temperatures a bit below seasonal in the north . around seasonal for central areas . and just above in the south. The only possible hazard could be a risk of rip currents Sun. But confidence is on the low side and will defer to later shifts to re-evaluate conditions.

Mon through Fri: The Atlantic upper trough lifts northeastward as the western Gulf ridge builds over the plains states early in the week. During the remainder of the week this ridge moves east and flattens over the eastern US in response to a series of upper lows/short wave troughs sliding along the Canadian/US border. Nearly zonal flow sets up over the area by Fri. The lower Mississippi Valley high pressure tracks east to the Atlantic by week's end . sprawling down over the Gulf and FL as it does.

The atmosphere continues dry and stable into Tue But by Wed. when the flow has become more easterly . moisture begins advecting into the southern counties then spreading northward Thu-Fri. This will support increasing rains chances going into the end of the week. Cool to near seasonal temperatures Mon slowly warm during the week.

AVIATION. 16/06Z-17/06Z. VFR conditions prevail as SKC gives way to FEW-SCT clouds. Patchy field fog will be possible this morning in normal areas . but have omitted from TAFs. A moisture starved frontal boundary approaches late in the main TAF period with PSBL MVFR VSBY and CIG in ISOLD SHRA AFT 03Z. Light to calm winds shift to NW in the afternoon AOB 09KT.

MARINE. Exercise caution headlines begins tonight and becomes Advisory conditions Sun into Mon as a front tracks through this evening and over night . with high pressure building in it's wake. The high pressure moves east during the week with winds diminishing and veering.

FIRE WEATHER. A weak front moves south over the fire districts this afternoon and during the overnight hours with some showers . a storm or two . and patchy fog. High pressure builds in Sun with a dry and stable northerly flow continuing into midweek . as the flow slowly veers.

Preliminary Point Temps/PoPs. TPA 90 70 83 64 / 0 10 0 0 FMY 91 74 87 67 / 10 10 10 10 GIF 91 70 82 61 / 0 10 0 0 SRQ 89 71 84 63 / 0 20 0 0 BKV 89 63 81 54 / 10 20 0 0 SPG 89 72 81 68 / 0 10 0 0

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

DISCUSSION/AVIATION/MARINE/FIRE WEATHER . 09/Rude DECISION SUPPORT . 69/Close


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CLBF1 6 mi94 min E 1G1.9 75°F 1013.2 hPa
SAPF1 - 8726520 - St. Petersburg, FL 8 mi58 min ESE 1.9G5.1 77°F 84°F1014.2 hPa
CWBF1 - 8726724 - Clearwater Beach, FL 13 mi58 min SE 4.1G5.1 78°F 84°F1014 hPa
MTBF1 13 mi58 min ESE 6G7
OPTF1 - 8726607 - Old Port Tampa, FL 13 mi58 min ESE 1.9G2.9 76°F 87°F1013.9 hPa
GCTF1 14 mi58 min 77°F 70°F
42098 16 mi62 min 83°F1 ft
PMAF1 16 mi58 min 73°F 83°F1013.8 hPa
SKCF1 20 mi58 min E 1.9G2.9
EBEF1 21 mi58 min 75°F 84°F1013.6 hPa
TSHF1 - 8726667 - East Bay Causeway, FL 21 mi58 min NE 1.9G4.1
FHPF1 - Fred Howard Park, FL 25 mi94 min E 4.1G6 77°F 1014.3 hPa
42013 - C10 - Navy-2 43 mi58 min SE 7.8G9.7 81°F 84°F
ARPF1 - APK - Aripeka, FL 45 mi154 min 0G1.9 73°F 1014.1 hPa

Wind History for St. Petersburg, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Albert Whitted Airport, FL8 mi35 minSE 510.00 miFair79°F71°F77%1013.1 hPa
St. Petersburg/Clearwater Airport, FL10 mi35 minN 010.00 miFair74°F70°F88%1013.7 hPa
Macdill Air Force Base, Fl., FL15 mi92 minN 010.00 miPartly Cloudy73°F67°F84%1013.1 hPa
Tampa, Tampa International Airport, FL18 mi35 minN 010.00 miPartly Cloudy78°F70°F76%1013.8 hPa
Tampa, Peter O Knight Airport, FL20 mi33 minN 010.00 miOvercast73°F70°F89%1013.9 hPa

Link to 5 minute data for KSPG

Wind History from SPG (wind in knots)
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Last 24hrE7E6E4E7E8E8E8E4E4E5E8W8N3N7N8N7N6N4NE7E9E8SE6SE6SE5
1 day agoE10E9E9NE10NE9E7E7E6E6E10E8E8E6W6W6N8N6NE9E11SE12SE11E9E9E7
2 days agoNE12NE10NE10NE11NE9NE9E8NE6NE8NE8NE4NE6NE5N5N7E12E8E13E10E10E9E8E8NE9

Tide / Current Tables for Johns Pass, Florida
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Johns Pass
Click for Map
Sat -- 03:32 AM EDT     1.39 feet Low Tide
Sat -- 03:44 AM EDT     Moonset
Sat -- 07:32 AM EDT     Sunrise
Sat -- 09:29 AM EDT     2.21 feet High Tide
Sat -- 04:51 PM EDT     0.34 feet Low Tide
Sat -- 05:11 PM EDT     Moonrise
Sat -- 07:00 PM EDT     Sunset
Sat -- 11:17 PM EDT     1.84 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Tide / Current Tables for Tampa Bay Entrance (Egmont Channel), Florida Current
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Tampa Bay Entrance (Egmont Channel)
Click for Map
Sat -- 01:48 AM EDT     -0.00 knots Slack
Sat -- 03:44 AM EDT     Moonset
Sat -- 03:54 AM EDT     -0.51 knots Max Ebb
Sat -- 06:16 AM EDT     0.00 knots Slack
Sat -- 07:31 AM EDT     Sunrise
Sat -- 09:37 AM EDT     1.00 knots Max Flood
Sat -- 12:18 PM EDT     -0.00 knots Slack
Sat -- 03:54 PM EDT     -1.49 knots Max Ebb
Sat -- 05:10 PM EDT     Moonrise
Sat -- 07:00 PM EDT     Sunset
Sat -- 07:36 PM EDT     0.00 knots Slack
Sat -- 10:44 PM EDT     1.52 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Weather Map
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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