Marine Weather and Tides
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.
|Sunrise 6:54AM||Sunset 8:03PM||Monday April 24, 2017 9:09 AM EDT (13:09 UTC)||Moonrise 4:47AM||Moonset 5:15PM||Illumination 3%|
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|GMZ830 Tampa Bay Waters- 413 Am Edt Mon Apr 24 2017 |
.small craft exercise caution...
Today..West winds 5 to 10 knots increasing to 15 to 20 knots in the afternoon. Bay and inland waters a light chop becoming choppy in the afternoon. A slight chance of showers in the morning.
Tonight..West winds 15 to 20 knots in the evening then becoming northwest and diminishing to around 10 knots after midnight. Bay and inland waters choppy becoming a light chop after midnight.
Tuesday..West winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Bay and inland waters a moderate chop.
Tuesday night..West winds around 10 knots then becoming southwest around 5 knots toward morning. Bay and inland waters a light chop.
Wednesday..South winds around 5 knots then becoming southwest around 10 knots in the afternoon. Bay and inland waters a light chop.
Wednesday night..Southwest winds around 10 knots then becoming south around 5 knots after midnight. Bay and inland waters a light chop.
Thursday..South winds around 10 knots. Bay and inland waters a light chop.
Thursday night..Southwest winds around 10 knots then becoming southeast around 5 knots after midnight. Bay and inland waters a light chop.
Friday..South winds around 10 knots. Bay and inland waters a light chop.
|GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 413 Am Edt Mon Apr 24 2017 |
Synopsis..A cold front will move south through the waters today. A few showers will accompany the frontal passage. Northwest winds will increase into the cautionary range by mid to late morning and will remain elevated through early tonight. Winds will slowly begin to diminish on Tuesday as high pressure builds in over the region with lighter winds and lower seas expected through the remainder of the week.
7 Day Forecast for Marine Location Near Tarpon Springs, FLHourly EDIT Help
Area Discussion for - Tampa Bay, FL  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus62 ktbw 241127 cca|
area forecast discussion... Corrected
national weather service tampa bay ruskin fl
727 am edt Mon apr 24 2017
24/12z-25/12z. Cold front approaching tampa bay with low clouds
and a few showers. Tafs have MVFR CIGS that spread south then lift
around mid-afternoon to bknVFR. Shra too isold to mention. Winds
currently westerly and modest but will increase and become gusty
in the wake of the front.
Prev discussion /issued 349 am edt Mon apr 24 2017/
Gusty winds with slightly cooler temperatures expected today
Short term (today - Tuesday)...
water vapor loop shows a closed upper level low over north-central
alabama early this morning. This closed low and an attendant weak
surface low over northeast georgia will move off the southeast u.S.
Coast through early tonight, and will then lift slowly north up
along the eastern seaboard through Tuesday. A trailing cold front
from this storm system now over the big bend region will continue to
move south moving through the nature coast toward sunrise, and then
through the bay area during mid morning, and then exiting to the
south of the forecast area during early afternoon.
Limited moisture along and ahead of the front should only support
some isolated showers (pops 20 percent) through early afternoon with
its passage with limited rainfall amounts expected. As the front
moves through northwest winds will increase and become gusty by mid
to late morning and into the afternoon which will make for hazardous
boating conditions on the adjacent gulf waters as well as on area
lakes. In addition to the winds considerable post-frontal moisture
via model cross-sections will support a good deal of clouds (mostly
cloudy skies) across the region through the day, especially along
Given the expected increase in winds will hoist a lake wind advisory
for the area lakes from noon through early this evening. Cool air
advection in the wake of the front combined with considerable post
frontal cloudiness will support cooler temperatures across the
region today compared to previous days with highs topping out in the
mid 70s north, and upper 70s to around 80 central and south.
Tonight drier air in the wake of the front will support clearing
skies and cooler conditions across the entire forecast area with
slowly diminishing winds as weak high pressure takes hold, with
overnight lows falling into the upper 50s across the nature coast,
and around 60 to the lower 60s central and south.
On Tuesday zonal flow aloft and weak surface high pressure will
support pleasant dry weather across the forecast area with ample
sunshine. Temperatures on Tuesday will return to near seasonal norms
with afternoon highs reaching around 80 to the lower 80s area wide
during the afternoon with west wind in the 10 to 15 mph range.
Long term (Tuesday night - Sunday)...
by the middle of the week, a shortwave trough positioned over the
carolina coast will be moving away from florida, while weak mid-
level high pressure over the gulf of mexico slides east into
florida. At the surface, atlantic high pressure ridging across the
florida straits Tuesday night will gradually lift north into florida
through the rest of the week, keeping dry and stable conditions in
place. With the high pressure building into the area both at the
surface and aloft, temperatures will increase through the second
half of the week, with maximum temperatures forecast to reach into
the low 90s inland and upper 80s along the coast each afternoon
beginning on Thursday.
By the end of the week, the upper level pattern will become much
more meridional as a deep trough digs into four corners region and
the ridge over florida amplifies. This more dynamic pattern will|
bring in increased atmospheric moisture from the gulf and allow for
a slight chance of showers both Saturday and Sunday afternoons,
although there does not look to be enough instability to allow for
heavy or widespread rainfall anywhere in the area.
a storm system over the southeast u.S. This morning will help to
pull a cold front south through the eastern gulf waters today. As
the front moves south through the waters winds will become northwest
with speed increasing into the cautionary range by mid to late
morning with hazardous marine conditions developing for small craft
operators. Given these expected conditions will raise cautionary
headlines for all of the waters in the next marine forecast package
later this morning. In addition, the gusty onshore flow and building
seas and surf with bring a high risk of rip currents to area beaches
this afternoon through early Tuesday morning and will issue a
coastal hazard message to address the threat of rip currents later
Tonight into Tuesday winds will back to the west as the above
mentioned storm system lifts slowly out to the north along the
eastern seaboard with wind speeds diminishing into the 10 to 15 knot
range. During Wednesday through Friday high pressure from the
atlantic extending west across the central peninsula will support a
lighter southeast to southerly wind flow over the gulf waters with
an onshore sea breeze component developing along the coast each
despite some drier air moving into the region today in the wake of a
cold front humidity values are expected to remain above critical
levels. On Tuesday and through the remainder of the week some
pockets of humidity values at or below 35 percent will be possible
over interior locations each afternoon, but lighter winds and erc
values below critical levels should preclude red flag conditions.
Gusty 20 foot winds and transport winds today will support high
dispersion indices across the region. The strong and gusty winds
will also create hazardous conditions near any ongoing fires around
the region. Winds are expected to slowly diminish on Tuesday and
through the remainder of the week as high pressure builds in over
Preliminary point temps/pops
Tpa 77 66 79 66 / 20 0 0 0
fmy 81 66 81 63 / 20 0 0 0
gif 80 60 82 62 / 20 0 0 0
srq 76 66 78 64 / 20 0 0 0
bkv 76 58 80 59 / 20 0 0 0
spg 77 67 77 69 / 20 0 0 0
Fl... High rip current risk from 2 pm edt this afternoon through
Tuesday morning for coastal charlotte-coastal
hillsborough-coastal lee-coastal manatee-coastal
Lake wind advisory from noon today to 7 pm edt this
evening for coastal charlotte-coastal citrus-coastal
hernando-coastal hillsborough-coastal lee-coastal
levy-coastal manatee-coastal pasco-coastal sarasota-
citrus-inland hernando-inland hillsborough-inland lee-
inland levy-inland manatee-inland pasco-inland
Gulf waters... None.
short term/marine/fire weather... 57/mcmichael
long term... 18/fleming
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|FHPF1 - Fred Howard Park, FL||2 mi||75 min||WNW 9.9 G 13||73°F||1008.4 hPa|
|CWBF1 - 8726724 - Clearwater Beach, FL||13 mi||51 min||WNW 14 G 17||73°F||78°F||1008.2 hPa|
|ARPF1 - APK - Aripeka, FL||19 mi||135 min||W 9.9 G 14||73°F||1007.3 hPa|
|TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL||23 mi||93 min||NW 4.1 G 8|
|TSHF1 - 8726667 - East Bay Causeway, FL||24 mi||51 min||NW 6 G 11|
|OPTF1 - 8726607 - Old Port Tampa, FL||24 mi||51 min||WNW 14 G 16||73°F||78°F||1008 hPa|
|MCYF1||25 mi||51 min||80°F|
|SAPF1 - 8726520 - St. Petersburg, FL||28 mi||57 min||NW 8.9 G 12||73°F||78°F||1007.5 hPa|
|CLBF1||30 mi||75 min||NW 4.1 G 7||74°F||1007.1 hPa|
|MTBF1||36 mi||51 min||NNW 11 G 14||73°F||1008.1 hPa||67°F|
|PMAF1||38 mi||51 min||73°F||77°F||1007.2 hPa|
|42098||40 mi||39 min||76°F||2 ft|
Wind History for Clearwater Beach, FL(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|St. Petersburg/Clearwater Airport, FL||18 mi||76 min||WNW 9||10.00 mi||Mostly Cloudy||72°F||64°F||79%||1007.7 hPa|
|Tampa, Tampa International Airport, FL||18 mi||76 min||WNW 9||10.00 mi||Partly Cloudy||75°F||64°F||71%||1007.7 hPa|
|Tampa, Vandenberg Airport, FL||24 mi||74 min||N 0||10.00 mi||Overcast||70°F||68°F||94%||1007.8 hPa|
|Tampa, Peter O Knight Airport, FL||24 mi||74 min||NW 4||10.00 mi||Mostly Cloudy||73°F||69°F||89%||1007.8 hPa|
|Macdill Air Force Base, Fl., FL||24 mi||71 min||WNW 5||10.00 mi||Mostly Cloudy||73°F||69°F||89%||1007.7 hPa|
Wind History from TPA (wind in knots)
|1 day ago||E||SE|
|2 days ago||SE||SE||SE||S||SE|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|Tarpon Springs |
Click for Map
Mon -- 05:46 AM EDT Moonrise
Mon -- 06:12 AM EDT 0.25 feet Low Tide
Mon -- 06:56 AM EDT Sunrise
Mon -- 12:01 PM EDT 2.85 feet High Tide
Mon -- 06:15 PM EDT Moonset
Mon -- 06:40 PM EDT -0.03 feet Low Tide
Mon -- 08:01 PM EDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|Old Tampa Bay Entrance (Port Tampa) |
Click for Map
Mon -- 02:35 AM EDT -0.00 knots Slack
Mon -- 05:45 AM EDT Moonrise
Mon -- 05:54 AM EDT -1.04 knots Max Ebb
Mon -- 06:56 AM EDT Sunrise
Mon -- 09:01 AM EDT 0.00 knots Slack
Mon -- 11:50 AM EDT 1.18 knots Max Flood
Mon -- 02:58 PM EDT -0.00 knots Slack
Mon -- 06:14 PM EDT Moonset
Mon -- 06:33 PM EDT -1.28 knots Max Ebb
Mon -- 08:00 PM EDT Sunset
Mon -- 09:42 PM EDT 0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images(on/off)  Help
|Weather Map ||IR Satellite Image from GEOS|
GOES Local Image of Southeast EDIT
Wind Forecast for Tampa Bay, FL (9,2,3,4)(on/off)  Help
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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.