Friday, January15, 2021
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Marine Weather and Tides
McGregor, 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 7:16AMSunset 5:58PM Friday January 15, 2021 3:45 PM EST (20:45 UTC) Moonrise 9:22AMMoonset 8:35PM Illumination 6% Phase: Waxing Crescent; Moon at 2 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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GMZ836 Charlotte Harbor And Pine Island Sound- 148 Pm Est Fri Jan 15 2021
.small craft exercise caution this evening...
.small craft advisory in effect from 1 am est Saturday through Saturday evening...
Tonight..South winds around 15 knots then becoming northwest in the late evening...then increasing to around 20 knots after midnight. Bay and inland waters a moderate chop becoming choppy. Scattered showers late in the evening.
Saturday..Northwest winds around 20 knots. Bay and inland waters choppy.
Saturday night..Northwest winds around 15 knots then becoming north 5 to 10 knots in the late evening and early morning, then becoming northeast around 5 knots toward morning. Bay and inland waters a moderate chop.
Sunday..East winds around 5 knots then becoming southwest around 5 knots late in the afternoon. Bay and inland waters smooth.
Sunday night..West winds around 5 knots then becoming northwest 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..Northeast winds around 10 knots. Bay and inland waters a light chop.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 148 Pm Est Fri Jan 15 2021
Synopsis.. A cold front will cross through the forecast waters this evening and overnight. Gusty southwesterly winds will shift west and northwest behind the front...increasing to advisory levels for all waters. Seas will quickly build as well...and become hazardous to most small craft. Advisory level conditions should be expected to persist through the daylight hours of Saturday before wind and seas slowly relax Saturday night into Sunday.


7 Day Forecast for Marine Location Near McGregor, FL
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location: 26.56, -81.93     debug


Area Discussion for - Tampa Bay, FL
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FXUS62 KTBW 151918 AFDTBW

Area Forecast Discussion National Weather Service Tampa Bay Ruskin FL 218 PM EST Fri Jan 15 2021

SHORT TERM (TDY-SUN). A closed upper level low pressure system approaching the Northeast and its associated cold front pushing into the Gulf of Mexico the afternoon and into Saturday. This gradually increase chances of showers from north to south during this afternoon. The highest chances of rain will be across the Big Bend given that the frontal boundary is expected to weaken as it moves across the Peninsula. The main impacts with this system will be for our marine/coastal areas as this front brings gusty northwest winds with winds gusting up to 25 kts and increasing seas. In addition, there will be an increasing risk for rip currents along our beaches that will more likely prompt the issuance of headlines for beaches along Pinellas County southward. Marine conditions should gradually improve by Sunday.

On the other hand, red tide conditions will be possible over Lee County through Saturday evening and a beach hazard statement has been issued. Visitors and residents in this area should be mindful that exposure to red tide can cause respiratory irritation.

Behind the front, a much cooler and drier airmass will settle into over the region. Temperatures will be dropping about 8 to 10 degrees from what we have seen this week. Highs pretty much won't change over the weekend In areas north of Hernando County temperatures will be in the low to mid 30s, but most of will stay in the low to mid 40s (except areas near the coast that will probably only stay near 50 degrees).

LONG TERM (MON-THU). High pressure will dominate through much of next week. COnditions will gradually warm up during this time. Nice and dry weather conditions will prevail.

AVIATION. VFR conditions will prevail through with intermittent MVFR conditions possible as a cold front approaches the area later this afternoon and evening. There is moderate confidence visibilities lowering as showers move across terminals, especially TPA and PIE but the band of showers should weaken as it moves across the Peninsula. Winds will become northwesterly behind the front gusting up to 20 kts through the night and into early Saturday.

MARINE. A cold front will cross through the forecast waters this evening and overnight. Gusty southwesterly winds will shift west and northwest behind the front . increasing to advisory levels for all waters. Seas will quickly build as well . and become hazardous to most small craft. Advisory level conditions should be expected to persist through the daylight hours of Saturday before wind and seas slowly relax Saturday night into Sunday.

FIRE WEATHER. A cold front will pass through the region this evening and overnight. The best chance for wetting rainfall will be north of the I-4 corridor, although even for these northern counties the rainfall will be light. The front and showers are gone by sunrise Saturday with a gusty west to northwest wind expected throughout the day. A colder and drier airmass will arrive behind tonight's front, however, critically low relative humidity is not expected this weekend. The stronger winds and efficient mixing will result in high dispersion indices on Saturday, with moderated indices by Sunday as the winds relax across the region.

Preliminary Point Temps/PoPs. TPA 71 54 64 46 / 50 60 0 0 FMY 73 56 68 48 / 0 20 0 0 GIF 73 51 64 42 / 10 40 0 0 SRQ 72 57 65 48 / 20 50 0 0 BKV 72 48 62 38 / 70 40 0 0 SPG 70 56 62 50 / 50 60 10 0

TBW WATCHES/WARNINGS/ADVISORIES. FL . Beach Hazards Statement through Saturday evening for Coastal Lee.

Gulf waters . Small Craft Advisory from 7 PM this evening to 1 AM EST Sunday for Coastal waters from Bonita Beach to Englewood FL out 20 NM-Coastal waters from Englewood to Tarpon Springs FL out 20 NM-Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM-Waters from Bonita Beach to Englewood FL out 20 to 60 NM-Waters from Englewood to Tarpon Springs FL out 20 to 60 NM-Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM.

Small Craft Advisory from 1 AM to 7 PM EST Saturday for Charlotte Harbor and Pine Island Sound-Tampa Bay waters.



SHORT TERM/AVIATION/LONG TERM/DECISION SUPPORT . Delerme MARINE/FIRE WEATHER . Mroczka


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FMRF1 - 8725520 - Fort Myers, FL 7 mi46 min WSW 7 G 9.9 70°F 66°F
BGCF1 - Big Carlos Pass, FL 11 mi52 min S 8 G 11 70°F
NPSF1 - 8725110 - Naples, FL 30 mi46 min SSW 9.9 G 12 69°F 66°F
RKXF1 - Rookery Bay Reserve, FL 37 mi61 min W 5.1 75°F 1012 hPa58°F
VENF1 - Venice, FL 45 mi46 min SSE 12 G 13 64°F 63°F1010.2 hPa (-3.0)64°F

Wind History for Naples, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fort Myers, Page Field, FL3 mi53 minSSW 910.00 miFair73°F57°F57%1010.7 hPa
Fort Myers, Southwest Florida International Airport, FL9 mi53 minSW 910.00 miFair73°F54°F51%1010.4 hPa

Link to 5 minute data for KFMY

Wind History from FMY (wind in knots)
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Last 24hrNW8NW8NW7NW6W3CalmCalmCalmCalmCalmCalmCalmCalmCalmE3CalmE3E3SE5SE6CalmSW5S7S9
1 day agoN6N6N7E5NE5SE5SE3S3SE3CalmN6N5N6NE5NE5E3NE5E3E5NE64W4CalmNW6
2 days agoN6NW5NW4N4NW5NW8CalmNW4NW7N8N7N7N5N5NE4N6N7N6NE7NE5CalmN7NE5N10

Tide / Current Tables for Cape Coral Bridge, Florida
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Cape Coral Bridge
Click for Map
Fri -- 03:19 AM EST     0.97 feet High Tide
Fri -- 07:17 AM EST     Sunrise
Fri -- 09:21 AM EST     Moonrise
Fri -- 12:07 PM EST     -0.28 feet Low Tide
Fri -- 05:57 PM EST     Sunset
Fri -- 06:37 PM EST     0.49 feet High Tide
Fri -- 08:35 PM EST     Moonset
Fri -- 10:53 PM EST     0.39 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.80.9110.90.70.50.30.1-0.1-0.2-0.3-0.2-0.10.10.30.40.50.50.50.40.40.4

Tide / Current Tables for Point Ybel (0.4 Mi. NW of), Florida Current
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Point Ybel (0.4 Mi. NW of)
Click for Map
Fri -- 01:50 AM EST     -0.00 knots Slack
Fri -- 06:37 AM EST     -1.66 knots Max Ebb
Fri -- 07:17 AM EST     Sunrise
Fri -- 09:21 AM EST     Moonrise
Fri -- 10:02 AM EST     0.00 knots Slack
Fri -- 12:59 PM EST     1.12 knots Max Flood
Fri -- 05:57 PM EST     Sunset
Fri -- 06:13 PM EST     -0.00 knots Slack
Fri -- 07:33 PM EST     -0.22 knots Max Ebb
Fri -- 08:35 PM EST     Moonset
Fri -- 08:46 PM EST     0.00 knots Slack
Fri -- 11:47 PM EST     1.01 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90.5-0.1-0.6-1-1.4-1.6-1.6-1.4-0.8-00.611.110.90.70.40.1-0.2-0.20.10.50.9

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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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.