Monday, January21, 2019 L-36.com


Marine Weather and Tides
Siesta Key, FL

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:19AMSunset 6:03PM Monday January 21, 2019 1:51 PM EST (18:51 UTC) Moonrise 6:49PMMoonset 7:43AM Illumination 99% Phase: Waning Gibbous; Moon at 16 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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GMZ853 Coastal Waters From Englewood To Tarpon Springs Fl Out 20 Nm- 948 Am Est Mon Jan 21 2019
This afternoon..Northeast winds around 15 knots. Seas 3 to 5 feet. Bay and inland waters a moderate chop.
Tonight..East winds around 15 knots. Seas 2 to 4 feet. Bay and inland waters a moderate chop.
Tuesday..East winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Tuesday night..Southeast winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Wednesday..Southeast winds around 15 knots. Seas 2 to 4 feet. Bay and inland waters a moderate chop. A slight chance of showers.
Wednesday night..South winds around 20 knots. Seas 3 to 5 feet. Bay and inland waters choppy. A chance of showers and a slight chance of Thunderstorms.
Thursday..West winds around 15 knots then becoming northwest in the afternoon. Seas 3 to 5 feet. Bay and inland waters a moderate chop. Showers likely and a slight chance of Thunderstorms.
Thursday night..North winds around 15 knots. Seas 3 to 5 feet. Bay and inland waters a moderate chop.
Friday..North winds around 15 knots with gusts to around 30 knots. Seas 2 to 4 feet. Bay and inland waters a moderate chop.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 948 Am Est Mon Jan 21 2019
Synopsis..Strong high pressure tracks over the eastern half of the nation through midweek...while sprawling down across the gulf of mexico. A cold front approaches Wednesday then moves through the waters on Thursday with showers and few Thunderstorms along and ahead of it. Winds will shift to the northwest and north in the wake of the front on Friday as high pressure builds in.


7 Day Forecast for Marine Location Near Siesta Key, FL
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location: 27.3, -82.57     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 211727
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
1227 pm est Mon jan 21 2019

Aviation
Vfr is expected during the next 24 hours. Northeast winds
at 10 knots or less through tonight will become east and
increase to 12 to 14 knots with gusts up to 23 knots after
15z on Tuesday.

Prev discussion issued 823 am est Mon jan 21 2019
update...

upper level ridging will build in over the region in the
wake of yesterday's upper level trough and cold front as
surface ridging builds down the eastern seaboard. A very
dry stable air mass via 12z RAOB data across the forecast
area will support pleasant dry weather today with ample
sunshine expected. Despite the ample sunshine though cool
air advection will keep temperatures below normal with highs
only reaching the mid upper 50s across the nature coast and
lower to mid 60s central and south. Ongoing forecast is in
good shape with no morning update required at this time.

Marine...

winds via c-man and offshore buoys have dropped below
advisory criteria this morning as high pressure builds in,
however seas will take a while longer especially over the
offshore waters where cautionary headlines will be depicted
for the remainder of the day with north-northeast winds
around 10 knots closer to shore slowly veering to the
northeast during the afternoon. Will add cautionary
headlines for the offshore waters in the next forecast
issuance around 10 am to account for the residual elevated
seas, otherwise the rest of the forecast is on track with
no other changes planned at this time.

Fire weather...

a very dry air mass over the region will support 3 to 4
hours of humidity values below 35 percent over portions of
the forecast area this afternoon, however lighter winds
combined with low erc's will preclude red flag conditions.

An increase in moisture is expected on Tuesday as the flow
veers into the east with no other fire weather issues
expected.

Tbw watches warnings advisories
Fl... Beach hazards statement until 10 pm est this evening for
coastal manatee-coastal sarasota.

High rip current risk until 7 pm est this evening for
coastal charlotte-coastal hillsborough-coastal lee-
coastal manatee-coastal sarasota-pinellas.

Gulf waters... None.

Aviation... 57 mcmichael


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
VENF1 - Venice, FL 17 mi51 min NE 7 G 8 57°F 63°F1026 hPa (+0.0)25°F
PMAF1 23 mi33 min 54°F 57°F1025.3 hPa
MTBF1 25 mi33 min ENE 12 G 14 55°F 1025.7 hPa36°F
42098 28 mi51 min 63°F4 ft
CLBF1 31 mi57 min NNE 5.1 G 8 62°F 1024.6 hPa
SAPF1 - 8726520 - St. Petersburg, FL 32 mi39 min NE 8 G 11 59°F 62°F1025.4 hPa
GCTF1 33 mi33 min 58°F 35°F
OPTF1 - 8726607 - Old Port Tampa, FL 39 mi33 min NNE 8.9 G 13 58°F 61°F1025.2 hPa
MCYF1 43 mi33 min 64°F
TSHF1 - 8726667 - East Bay Causeway, FL 44 mi33 min NNE 6 G 12
CWBF1 - 8726724 - Clearwater Beach, FL 49 mi39 min N 14 G 15 52°F 60°F1025.6 hPa

Wind History for C-Cut, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sarasota / Bradenton, Sarasota-Bradenton International Airport, FL7 mi58 minNNE 910.00 miFair62°F27°F26%1024.8 hPa
Venice Municipal Airport, FL17 mi56 minNNE 610.00 miFair61°F28°F29%1026.1 hPa

Wind History from SRQ (wind in knots)
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Last 24hrNW24
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2 days agoW8W7W7W6W6NW3CalmCalmCalmNE4E4NE3E4E3SE5SE4SE4SE4SE5SE6S10S12S14S17
G27

Tide / Current Tables for Sarasota, Sarasota Bay, Florida
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Sarasota
Click for Map
Mon -- 12:17 AM EST     Full Moon
Mon -- 07:20 AM EST     Sunrise
Mon -- 07:39 AM EST     -0.80 feet Low Tide
Mon -- 07:42 AM EST     Moonset
Mon -- 06:02 PM EST     Sunset
Mon -- 06:49 PM EST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.21.91.510.4-0.1-0.5-0.8-0.8-0.6-0.20.20.60.8111.11.11.11.11.31.51.82.1

Tide / Current Tables for Tampa Bay (Sunshine Skyway Bridge), Florida Current
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Tampa Bay (Sunshine Skyway Bridge)
Click for Map
Mon -- 12:17 AM EST     Full Moon
Mon -- 01:18 AM EST     -0.00 knots Slack
Mon -- 05:22 AM EST     -2.13 knots Max Ebb
Mon -- 07:21 AM EST     Sunrise
Mon -- 07:43 AM EST     Moonset
Mon -- 09:20 AM EST     0.00 knots Slack
Mon -- 12:34 PM EST     1.93 knots Max Flood
Mon -- 04:52 PM EST     -0.00 knots Slack
Mon -- 06:02 PM EST     Sunset
Mon -- 06:20 PM EST     -0.29 knots Max Ebb
Mon -- 06:49 PM EST     Moonrise
Mon -- 07:48 PM EST     0.00 knots Slack
Mon -- 11:24 PM EST     1.39 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90.2-0.6-1.3-1.9-2.1-2.1-1.7-1.1-0.30.61.41.91.91.510.4-0-0.3-0.20.10.61.11.4

Weather Map and Satellite Images
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wmap_A
GOES 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 (13,3,4,5)
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Ground Weather Radar Station Tampa Bay Area, FL
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Gulf Stream Current


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Disclaimer:
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.