Thursday, August17, 2017 L-36.com


Marine Weather and Tides
St. Petersburg, FL

Version 3.4
What's New / NOTES
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.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:01AMSunset 8:07PM Thursday August 17, 2017 11:19 AM EDT (15:19 UTC) Moonrise 1:42AMMoonset 3:38PM Illumination 22% Phase: Waning Crescent; Moon at 25 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- 1022 Am Edt Thu Aug 17 2017
This afternoon..Northeast winds around 5 knots then becoming northwest around 10 knots in the afternoon. Bay and inland waters a light chop. Isolated Thunderstorms late in the morning, then scattered Thunderstorms in the afternoon.
Tonight..Northwest winds 5 to 10 knots then becoming northeast around 5 knots late in the evening, then becoming east after midnight. Bay and inland waters a light chop. Scattered Thunderstorms in the evening.
Friday..Southeast winds around 5 knots then becoming southwest around 5 knots early in the afternoon, then becoming west around 10 knots late in the afternoon. Bay and inland waters a light chop. Isolated Thunderstorms.
Friday night..Northwest winds around 10 knots then becoming east around 5 knots after midnight, then becoming southeast toward morning. Bay and inland waters a light chop. Scattered Thunderstorms in the evening.
Saturday..Southeast winds around 5 knots then becoming west late in the afternoon. Bay and inland waters smooth. Isolated Thunderstorms in the morning, then scattered Thunderstorms in the afternoon.
Saturday night..North winds around 5 knots then becoming east after midnight. Bay and inland waters smooth. Scattered Thunderstorms in the evening, then isolated Thunderstorms after midnight.
Sunday..Southeast winds around 5 knots. Bay and inland waters smooth. Isolated Thunderstorms in the morning, then numerous Thunderstorms in the afternoon.
Sunday night..East winds around 10 knots. Bay and inland waters a light chop. Isolated Thunderstorms.
Monday..East winds around 10 knots. Bay and inland waters a light chop. Scattered Thunderstorms.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 1022 Am Edt Thu Aug 17 2017
Synopsis..Atlantic high pressure remains over the eastern gulf of mexico...with an axis near tampa bay...through the weekend with a relaxed pressure gradient. The ridge eases northward early next week. Typical widely scattered summer Thunderstorms can be anticipated each day...with the best potential for a passing storm during the late night and morning hours. Winds and seas will be higher near the storms.

7 Day Forecast for Marine Location Near St. Petersburg, FL
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location: 27.77, -82.62     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 171410
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
1010 am edt Thu aug 17 2017

Discussion
Weak ridging at the surface and aloft will continue across
the area through early Friday. An inverted trough will then
move over the area later Friday through Saturday, and the
deeper moisture with it moving over the state through
Sunday. Scattered showers and thunderstorms will develop and
move inland through the afternoon and early evening.

Temperatures on track to reach into the lower to mid 90s. No
updates planned as current forecast on track.

Aviation
A few morning showers possible near the coastal terminals
this morning, then becoming thunderstorms and increasing in
coverage across the area through the late morning and
afternoon as winds increase from the W nw. Convection then
ending and winds becoming light and variable after 01z.

Marine
Weak pressures in place will allow for diurnal forcing to
turn the winds to the W NW especially along the coast during
the afternoon hours. Winds and seas will remain light with
scattered showers and thunderstorms possible over the
waters. Current forecast is on track with all of that so no
updates planned.

Preliminary point temps pops
Tpa 92 80 91 79 40 10 30 10
fmy 93 77 93 76 50 30 40 20
gif 95 76 94 75 60 20 50 20
srq 91 78 91 78 30 10 30 10
bkv 92 76 92 75 40 10 30 10
spg 91 81 90 79 30 20 30 10

Tbw watches warnings advisories
Fl... None.

Gulf waters... None.

Update aviation marine fire weather... 24 hubbard
upper air... 05 carlisle
decision support... 74 wynn


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAPF1 - 8726520 - St. Petersburg, FL 1 mi49 min ESE 2.9 G 4.1 89°F 89°F1019.6 hPa
CLBF1 4 mi85 min NE 1.9 G 4.1 89°F 1018.2 hPa
OPTF1 - 8726607 - Old Port Tampa, FL 7 mi49 min SW 1.9 G 2.9 85°F 89°F1019.4 hPa
MTBF1 8 mi49 min E 1.9 G 2.9 85°F 1019.4 hPa
PMAF1 10 mi49 min 86°F 90°F1018.5 hPa
MCYF1 14 mi49 min 89°F
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 15 mi55 min SSE 2.9 G 5.1
TSHF1 - 8726667 - East Bay Causeway, FL 15 mi55 min ESE 1 G 4.1
CWBF1 - 8726724 - Clearwater Beach, FL 18 mi49 min W 2.9 G 2.9 87°F 89°F1019.5 hPa
42098 21 mi49 min 89°F1 ft
FHPF1 - Fred Howard Park, FL 28 mi85 min Calm G 1 87°F 1019.7 hPa
42013 - C10 - Navy-2 44 mi49 min E 3.9 G 5.8 89°F
ARPF1 - APK - Aripeka, FL 46 mi85 min ENE 1.9 G 4.1 89°F 1019.2 hPa
VENF1 - Venice, FL 49 mi79 min ESE 1.9 G 1.9 86°F 89°F1019 hPa (+0.5)73°F

Wind History for St. Petersburg, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Albert Whitted Airport, FL1 mi26 minESE 510.00 miFair88°F75°F68%1018.7 hPa
Macdill Air Force Base, Fl., FL8 mi21 minN 010.00 miFair90°F81°F76%1019.6 hPa
St. Petersburg/Clearwater Airport, FL10 mi26 minENE 510.00 miFair90°F75°F63%1019.1 hPa
Tampa, Peter O Knight Airport, FL14 mi24 minS 310.00 miMostly Cloudy90°F78°F71%1019.3 hPa
Tampa, Tampa International Airport, FL15 mi26 minSW 410.00 miPartly Cloudy87°F75°F70%1019.3 hPa
Tampa, Vandenberg Airport, FL22 mi24 minN 010.00 miFair90°F73°F59%1019.6 hPa

Wind History from SPG (wind in knots)
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Last 24hrW4N8N7SW6E5W6NE4CalmCalmCalmCalmN3CalmS6S5S3CalmCalmS4CalmSE3CalmSE3E5
1 day agoW8SW10W7NW7W11W8NW84
G23
5NW5N4N4CalmN3CalmCalmCalmN4CalmCalmNE3NE3E6E7
2 days agoW7SW7W10W10SW9
G15
W9W9W7W9W6W3W5W3W3W3W4W3CalmW3W3W3W7W7--

Tide / Current Tables for St. Petersburg, Tampa Bay, Florida
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St. Petersburg
Click for Map
Thu -- 12:27 AM EDT     1.58 feet High Tide
Thu -- 02:42 AM EDT     Moonrise
Thu -- 03:23 AM EDT     1.47 feet Low Tide
Thu -- 07:02 AM EDT     Sunrise
Thu -- 10:07 AM EDT     2.60 feet High Tide
Thu -- 04:37 PM EDT     Moonset
Thu -- 06:18 PM EDT     0.16 feet Low Tide
Thu -- 08:06 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.61.61.51.51.51.61.82.12.32.52.62.52.321.61.10.60.30.20.20.40.711.3

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
Thu -- 01:45 AM EDT     -0.00 knots Slack
Thu -- 02:42 AM EDT     Moonrise
Thu -- 03:30 AM EDT     -0.22 knots Max Ebb
Thu -- 05:21 AM EDT     0.00 knots Slack
Thu -- 07:01 AM EDT     Sunrise
Thu -- 08:26 AM EDT     0.74 knots Max Flood
Thu -- 11:21 AM EDT     -0.00 knots Slack
Thu -- 04:37 PM EDT     Moonset
Thu -- 04:57 PM EDT     -1.30 knots Max Ebb
Thu -- 08:06 PM EDT     Sunset
Thu -- 08:15 PM EDT     0.00 knots Slack
Thu -- 11:15 PM EDT     1.11 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.2-0.1-0.2-0.2-0.10.20.50.70.70.50.1-0.2-0.6-0.9-1.1-1.2-1.3-1.2-0.8-0.20.50.91.1

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Tampa Bay, FL (11,2,3,4)
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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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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.