Friday, December13, 2019
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Marine Weather and Tides
Hernando Beach, FL

Version 3.4
NOTICE
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:12AMSunset 5:36PM Friday December 13, 2019 7:48 PM EST (00:48 UTC) Moonrise 7:09PMMoonset 8:30AM Illumination 95% Phase: Waning Gibbous; Moon at 17 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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GMZ850 Coastal Waters From Tarpon Springs To Suwannee River Fl Out 20 Nm- 201 Pm Est Fri Dec 13 2019
Tonight..South winds around 15 knots then becoming southwest after midnight. Seas 2 to 3 feet. Bay and inland waters a moderate chop. A chance of Thunderstorms. Showers likely after midnight. Patchy sea fog after midnight.
Saturday..Northwest winds around 15 knots diminishing to 5 to 10 knots in the afternoon. Seas 2 to 3 feet. Bay and inland waters a moderate chop. Patchy sea fog early in the morning. A slight chance of showers early in the morning.
Saturday night..Northwest winds around 10 knots then becoming north around 5 knots after midnight. Seas 2 to 3 feet. Bay and inland waters a light chop.
Sunday..East winds around 5 knots. Seas 2 to 3 feet. Bay and inland waters smooth.
Sunday night..Southeast winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop.
Monday..Southeast winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop.
Monday night..Southeast winds around 5 knots then becoming south around 10 knots after midnight. Seas 2 feet. Bay and inland waters a light chop. A slight chance of showers after midnight.
Tuesday..South winds around 10 knots then becoming west in the afternoon. Seas 2 feet. Bay and inland waters a light chop. A chance of showers in the morning, then showers likely in the afternoon.
Tuesday night..Northwest winds 10 to 15 knots then becoming north around 20 knots after midnight. Seas 2 to 4 feet. Bay and inland waters choppy. A chance of showers.
Wednesday..North winds around 20 knots. Seas 3 to 5 feet. Bay and inland waters choppy. A slight chance of showers in the morning.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 201 Pm Est Fri Dec 13 2019
Synopsis..Low pressure will develop over the northeastern gulf of mexico and move northeast today, bringing showers and a few Thunderstorms. A cold front will then move through the region tonight into Saturday, with winds becoming southwest and then northwest through the day and wind speeds increasing to exercise caution levels for a time overnight. Winds will diminish starting later Saturday as high pressure builds in behind the front. There remains some potential for sea fog to develop, mainly north of tampa bay, starting tonight into early Saturday.


7 Day Forecast for Marine Location Near Hernando Beach, FL
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location: 28.47, -82.66     debug


Area Discussion for - Tampa Bay, FL
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FXUS62 KTBW 131901 AFDTBW

Area Forecast Discussion National Weather Service Tampa Bay Ruskin FL 201 PM EST Fri Dec 13 2019

DISCUSSION. Broad cyclonic flow continues aloft over much of the country with an initial shortwave moving over northern Florida. At the surface, low pressure is developing over the Gulf of Mexico, with a warm front over the peninsula lifting northward. This setup has led to shower and thunderstorm activity over the northeastern Gulf, with additional showers over portions of the peninsula. As we head into tonight, another shortwave will move across the region as the surface low moves northeastward. This will be the main timeframe for possible severe weather, during the overnight hours ahead of the shortwave and as the surface low moves over the area. As the shortwave approaches, diffluence aloft will increase with a 70-plus knot jet nosing into northern Florida and bulk shear values forecast to be in the 40-50 knot range. All of this will lead to a slight risk for severe storms overnight, with the biggest threat being isolated damaging wind gusts, though an isolated tornado cannot be ruled out.

As we head into Saturday, the cold front will move through the region, bringing an end to rain as we head into the afternoon. Cooler and drier air will also start to filter into the region as surface high pressure builds overhead and then shifts eastward through the end of the weekend. Sunday will be the nicest day, with high temperatures in the 70s and dew points in the 50s.

Conditions moderate for Monday and Tuesday ahead of the next frontal boundary, which is currently forecast to pass through the region Tuesday night. Rain chances will increase Tuesday afternoon/evening ahead of this next boundary, with conditions drying out on Wednesday. This front will bring us a cooler air mass, with high temperatures in the 60s to low 70s through the end of the week.

AVIATION. VFR conditions are generally expected, but shower activity could lead to some MVFR conditions. Winds will turn southwest tonight into Saturday and then northwest into the afternoon.

MARINE. Low pressure will develop over the northeastern Gulf of Mexico and move northeast today, bringing showers and a few thunderstorms. A cold front will then move through the region tonight into Saturday, with winds becoming southwest and then northwest through the day and wind speeds increasing to exercise caution levels for a time overnight. Winds will diminish starting later Saturday as high pressure builds in behind the front. There remains some potential for sea fog to develop, mainly north of Tampa Bay, starting tonight into early Saturday.

FIRE WEATHER. Low pressure over the Gulf of Mexico will move northeast, bringing a chance for showers and thunderstorms today and tonight. A cold front will then move through the area on Saturday, bringing an end to the rain. Overall, no fire weather concerns as relative humidity values are expected to remain above critical levels. Some patchy fog will be possible tonight.

Preliminary Point Temps/PoPs. TPA 78 67 75 55 / 50 70 30 0 FMY 81 68 79 56 / 20 40 60 0 GIF 78 66 76 52 / 30 50 50 0 SRQ 79 67 78 55 / 30 60 50 0 BKV 78 63 74 48 / 60 70 20 0 SPG 77 68 75 57 / 50 70 40 0

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

Gulf waters . None.

05/Carlisle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ARPF1 - APK - Aripeka, FL 3 mi174 min SE 1 G 2.9 74°F 1010.2 hPa
FHPF1 - Fred Howard Park, FL 23 mi114 min S 12 G 13 71°F 1010.5 hPa
CWBF1 - 8726724 - Clearwater Beach, FL 35 mi54 min S 6 G 8 71°F 71°F1010.4 hPa
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 39 mi54 min S 5.1 G 7
TSHF1 - 8726667 - East Bay Causeway, FL 39 mi54 min SE 6 G 6
MCYF1 40 mi48 min 70°F
OPTF1 - 8726607 - Old Port Tampa, FL 43 mi48 min S 7 G 8.9 70°F 70°F1010.3 hPa (-0.7)
GCTF1 49 mi48 min 70°F 1010.6 hPa (+0.3)69°F
SAPF1 - 8726520 - St. Petersburg, FL 49 mi48 min SSW 7 G 8.9 70°F 69°F1010.8 hPa (+0.0)

Wind History for Clearwater Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Brooksville-Tampa Bay Regional Airport, FL11 mi55 minSE 39.00 miFair67°F64°F93%1010.2 hPa

Link to 5 minute data for KBKV

Wind History from BKV (wind in knots)
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Last 24hrNE9NE8E11E9E7E4NE3E3E4SE3CalmSE3S3SE4CalmS3S3S5SW5S7S6CalmCalmSE3
1 day agoNE14NE11
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2 days agoCalmCalmCalmCalmCalmSE5CalmCalmCalmCalmN3CalmCalmCalmNW4NE7N7NE7NE7N7N12NE12
G23
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G21
NE11

Tide / Current Tables for Hernando Beach, Rocky Creek, Little Pine I. Bay, Florida
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Hernando Beach
Click for Map
Fri -- 12:43 AM EST     3.01 feet High Tide
Fri -- 07:14 AM EST     Sunrise
Fri -- 08:30 AM EST     Moonset
Fri -- 09:14 AM EST     -0.75 feet Low Tide
Fri -- 02:36 PM EST     2.71 feet High Tide
Fri -- 05:35 PM EST     Sunset
Fri -- 07:09 PM EST     Moonrise
Fri -- 09:01 PM EST     1.00 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.932.82.41.81.10.5-0.1-0.5-0.7-0.60.1122.62.72.52.21.81.41.111.21.9

Tide / Current Tables for Hudson, Florida
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Hudson
Click for Map
Fri -- 12:26 AM EST     3.33 feet High Tide
Fri -- 07:14 AM EST     Sunrise
Fri -- 07:46 AM EST     -0.81 feet Low Tide
Fri -- 08:30 AM EST     Moonset
Fri -- 02:15 PM EST     2.96 feet High Tide
Fri -- 05:35 PM EST     Sunset
Fri -- 07:09 PM EST     Moonrise
Fri -- 07:32 PM EST     1.13 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.33.32.82.11.30.5-0.2-0.7-0.8-0.50.211.92.62.92.92.51.91.51.21.21.522.6

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 (19,4,5,8)
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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 numerious 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.