Friday, April20, 2018 L-36.com


Marine Weather and Tides
Apollo Beach, FL

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.

Sunrise 6:57AMSunset 7:59PM Friday April 20, 2018 11:43 PM EDT (03:43 UTC) Moonrise 9:53AMMoonset 11:55PM Illumination 32% Phase: Waxing Crescent; Moon at 6 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- 758 Pm Edt Fri Apr 20 2018
.small craft exercise caution...
Rest of tonight..North winds around 10 knots then becoming northeast 15 to 20 knots in the late evening and overnight. Bay and inland waters a moderate chop to choppy.
Saturday..East winds around 15 knots early in the morning...then diminishing to 5 to 10 knots early in the afternoon, then becoming variable 10 knots or less by late in the afternoon. Bay and inland waters a light to moderate chop. A slight chance of Thunderstorms in the afternoon.
Saturday night..East winds around 10 knots. Bay and inland waters a light chop. A chance of showers in the evening. A slight chance of Thunderstorms.
Sunday..Southeast winds around 10 knots then becoming south around 5 knots late in the afternoon. Bay and inland waters a light chop. A slight chance of Thunderstorms. A chance of showers in the afternoon.
Sunday night..Southeast winds around 10 knots. Bay and inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Monday..South winds around 10 knots. Bay and inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Monday night..South winds around 10 knots then becoming southeast after midnight. Bay and inland waters a light chop. A chance of showers in the evening. A slight chance of Thunderstorms.
Tuesday..South winds around 10 knots then becoming southwest in the afternoon. Bay and inland waters a light chop. A slight chance of Thunderstorms.
Tuesday night..West winds around 10 knots. Bay and inland waters a light chop.
Wednesday..West winds around 10 knots. Bay and inland waters a light chop.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 758 Pm Edt Fri Apr 20 2018
Synopsis.. A weakening cold front will stall across the central waters overnight. High pressure will build over the mid atlantic coast tightening the pressure gradient across the coastal waters with increasing easterly winds tonight and Saturday...with advisory levels winds possible at times...mainly over the northern and central waters. A cold front will again approach the waters Sunday night and Monday with an increasing chance of showers Thunderstorms.

7 Day Forecast for Marine Location Near Apollo Beach, FL
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location: 27.79, -82.52     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 210045
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
845 pm edt Fri apr 20 2018

Update
A weak cold front is very slowly settling southward through
the central florida peninsula. There is a defined dewpoint
gradient along this front, with middle 60s dewpoint south of
i-4... And dewpoints mainly in the 50s further to the north.

Within this post-frontal environment... A large expanse of
lower stratus is also evident on satellite this
evening... And should continue to expand southward into the
i-4 corridor through the rest of the evening hours. These
clouds will mainly be an impact to the aviation community.

A tightening pressure gradient along and behind the front
will also lead to choppy to rough conditions over the
eastern gulf of mexico... Mainly from the venice area
northward through the rest of the overnight and early
Saturday morning. Mariners should expect developing
cautionary level winds out of the east... With periods of
near advisory level winds to the north of tarpon springs.

Low temperatures overnight generally in the lower to middle
60s... With a few spots up toward levy county dipping into
the upper 50s toward sunrise.

Aviation (21 00z through 22 00z)
Main forecast concern for remainder of the evening and
overnight will be the evolution of a large area of MVFR cigs
to the north of the i-4 corridor. This region should expand
to the southwest after sunset, but confidence in its impacts
around ktpa kpie krsw are lower than average. Have included
MVFR conditions after midnight as these areas of lower
ceilings in NE flow tend to be more aggressive than most nwp
will show. Onshore W NW flow at 00z will shift back to NE e
after 03z with the decay of the seabreeze. Any early morning
MVFR CIGS lift to allow for a sct-bkn deck with bases above
4kft for much of the day. Sea-breeze development should turn
winds onshore along the immediate coast. A few showers along
this sea-breeze are possible inland... With klal seeing the
greatest potential for a later afternoon shower.

Preliminary point temps pops
Tpa 68 82 70 83 0 40 30 50
fmy 68 87 70 86 0 20 20 50
gif 68 81 69 84 10 30 40 60
srq 69 78 70 81 0 10 20 40
bkv 64 81 68 83 10 40 40 50
spg 69 84 71 84 0 20 20 40

Tbw watches warnings advisories
Fl... None.

Gulf waters... None.

Mroczka


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OPTF1 - 8726607 - Old Port Tampa, FL 5 mi44 min ENE 6 G 13 71°F 76°F1020.6 hPa (+1.4)
SAPF1 - 8726520 - St. Petersburg, FL 6 mi44 min NE 17 G 20 73°F 76°F1019.9 hPa (+1.4)
MTBF1 10 mi44 min ENE 19 G 21 73°F 1020.4 hPa (+1.4)66°F
MCYF1 10 mi44 min 78°F
CLBF1 10 mi110 min N 2.9 G 5.1 75°F 1019.3 hPa
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 11 mi56 min N 8.9 G 11
PMAF1 11 mi44 min 73°F 78°F1020.1 hPa (+1.4)
CWBF1 - 8726724 - Clearwater Beach, FL 21 mi44 min NE 12 G 18 70°F 76°F1020.5 hPa (+1.1)
42098 26 mi74 min 74°F2 ft
FHPF1 - Fred Howard Park, FL 29 mi110 min ENE 17 G 20 72°F 1021.3 hPa

Wind History for Old Port Tampa, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Macdill Air Force Base, Fl., FL5 mi1.8 hrsNE 10 G 1410.00 miMostly Cloudy73°F63°F72%1020.3 hPa
Albert Whitted Airport, FL6 mi51 minENE 1810.00 miOvercast and Breezy74°F68°F82%1020 hPa
Tampa, Peter O Knight Airport, FL9 mi49 minNE 1210.00 miOvercast70°F62°F78%1021 hPa
Tampa, Tampa International Airport, FL12 mi51 minNE 10 G 1610.00 miOvercast71°F62°F73%1021.1 hPa
St. Petersburg/Clearwater Airport, FL12 mi51 minNE 13 G 2110.00 miOvercast72°F64°F79%1020.4 hPa
Tampa, Vandenberg Airport, FL18 mi49 minNNE 310.00 miOvercast68°F62°F83%1021.3 hPa
Plant City, Plant City Municipal Airport, FL24 mi69 minNE 710.00 miOvercast70°F62°F78%1021.7 hPa

Wind History from MCF (wind in knots)
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Last 24hrCalmCalmCalmCalmW3CalmNW3CalmCalmN6W5CalmSE3E4SW5S3W4W5W7NW8NW6NW4NE10
G14
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1 day agoCalmCalmCalmCalmW3CalmCalmNW3SW3SW6SW5SW6
G15
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SW11W6NW9W12NW6NW4NW4CalmCalmCalm
2 days agoN4CalmE3E3CalmE3E3E3CalmE3E4S6S4W5W5W6W5NW6NW6N8N4N4N3Calm

Tide / Current Tables for Port Tampa, Old Tampa Bay, Florida
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Port Tampa
Click for Map
Fri -- 12:44 AM EDT     -0.22 feet Low Tide
Fri -- 07:00 AM EDT     Sunrise
Fri -- 08:04 AM EDT     1.63 feet High Tide
Fri -- 10:52 AM EDT     Moonrise
Fri -- 11:19 AM EDT     1.41 feet Low Tide
Fri -- 05:35 PM EDT     2.86 feet High Tide
Fri -- 07:58 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.2-0.2-0.10.20.611.31.61.61.61.51.41.41.61.92.32.62.82.82.62.21.71.10.6

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
Fri -- 02:09 AM EDT     0.00 knots Slack
Fri -- 05:08 AM EDT     1.09 knots Max Flood
Fri -- 07:00 AM EDT     Sunrise
Fri -- 09:03 AM EDT     -0.00 knots Slack
Fri -- 10:46 AM EDT     -0.32 knots Max Ebb
Fri -- 10:52 AM EDT     Moonrise
Fri -- 12:34 PM EDT     0.00 knots Slack
Fri -- 03:47 PM EDT     0.97 knots Max Flood
Fri -- 06:20 PM EDT     -0.00 knots Slack
Fri -- 07:58 PM EDT     Sunset
Fri -- 10:24 PM EDT     -1.39 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1-0.6-0.10.50.91.110.80.40-0.3-0.3-0.20.10.50.910.70.2-0.4-0.9-1.2-1.4-1.4

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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Tampa Bay, FL (23,6,7,8)
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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.