Marine Weather and Tides
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 7:20AM||Sunset 6:05PM||Monday January 22, 2018 2:40 PM EST (19:40 UTC)||Moonrise 10:52AM||Moonset 11:11PM||Illumination 35%|
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|GMZ830 Tampa Bay Waters- 234 Pm Est Mon Jan 22 2018 |
Tonight..South winds around 5 knots. Bay and inland waters smooth. Areas of sea fog. Scattered showers in the evening. Isolated Thunderstorms. Numerous showers after midnight.
Tuesday..South winds around 10 knots then becoming northwest late in the afternoon. Bay and inland waters a light chop. Areas of sea fog in the morning. Patchy fog in the afternoon. Scattered showers and isolated Thunderstorms.
Tuesday night..North winds around 10 knots. Bay and inland waters a light chop.
Wednesday..North winds around 15 knots diminishing to 5 to 10 knots in the afternoon. Bay and inland waters a moderate chop.
Wednesday night..North winds around 15 knots. Bay and inland waters a moderate chop.
Thursday..Northeast winds around 15 knots. Bay and inland waters a moderate chop.
Thursday night..Northeast winds around 15 knots. Bay and inland waters a moderate chop.
Friday..East winds around 15 knots. Bay and inland waters a moderate chop.
Friday night..East winds around 15 knots. Bay and inland waters a moderate chop.
Saturday..East winds around 10 knots. Bay and inland waters a light chop. A slight chance of showers in the afternoon.
|GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 234 Pm Est Mon Jan 22 2018 |
Synopsis..Southeast low-level flow will shift southward tonight ahead of an approaching cold front. Expect areas of showers and isolated Thunderstorms tonight into early Tuesday ahead of this boundary, with the greatest coverage expected from tampa bay northward. Winds will become north to northeast late Tuesday into Wednesday behind the front, with speeds increasing to cautionary levels at times. An area of sea fog is lingering offshore the nature coast region this afternoon and additional development is likely tonight and into Tuesday morning, extending southward across the rest of the waters. The sea fog potential will end from north to south Tuesday evening with the passage of the cold front.
7 Day Forecast for Marine Location Near Seminole, FLHourly EDIT Help
Area Discussion for - Tampa Bay, FL  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus62 ktbw 221933|
area forecast discussion
national weather service tampa bay ruskin fl
233 pm est Mon jan 22 2018
Short term (tonight-Tuesday)
A highly amplified pattern is in place aloft, with a strong closed
low moving through the central part of the country. At the surface,
florida remains in a low-level southeast to south flow between high
pressure over the western atlantic and low pressure over the plains,
with a trailing cold front making its way into the southeast. The sea
fog that impacted the area this morning is now limited to just
offshore the nature coast region.
A rather subtle shortwave is forecast to move across the gulf and
over the region later this evening, with a round of showers and a few
thunderstorms likely, especially for the nature coast area but even
extending south into the tampa bay region. This rainfall will be well
ahead of the approaching cold front and will likely end prior to the
frontal passage. Much of the upper-level support for this boundary
will remain north of the area, so we are still really only looking
for a broken line of showers with it tonight into Tuesday. Look for
rain to end from north to south starting around midday, but a few
showers could still be around over our southern zones for the end of
The biggest forecast challenge continues to be the possibility of
additional sea fog development. A mentioned above, a large area
remains over the gulf adjacent to the nature coast, but other areas
have cleared out. However, as the Sun sets and mixing ends,
additional development is likely as a southeast or south moist flow
moves over the still-cool waters. The forecast shows some of this fog
moving over coastal areas and this is probably the trickiest part of
this forecast, but there is enough of a possibility to include it for
tonight. The sea fog threat ends from north to south through the day
as the front moves through.
Long term (Tuesday night-Monday)
Mid upper level troughing will be over the eastern u.S. Through
midweek then some weak ridging will build over the gulf of mexico
and florida late in the week before the next trough develops over
the eastern states early next week. Cooler drier air will be moving
into the area Tuesday night and Wednesday with temperatures
returning to a few degrees below normal for midweek. Breezy
northerly winds Wednesday will shift to northeast Thursday and then
east on Friday as surface high pressure moves across the southern
u.S. And eventually out into the western atlantic during Friday.
Mainly dry weather with seasonable temperatures are expected during
this timeframe under partly to mostly cloudy skies. Over the weekend
and into early next week the next storm system will take shape over|
the deep south and gulf of mexico and move east bringing more clouds
and increasing rain chances for late Saturday into Monday.
Temperatures will remain seasonable with no big extremes either cold
or warm expected.
Vfr conditions prevail through this evening. Rain chances will
increase for the overnight period, with showers and MVFR or lower
cigs and vsbys possible. Sea fog will possibly move onshore tonight
and into Tuesday, mainly affecting ktpa, kpie, and ksrq.
Southeast low-level flow will shift southward tonight ahead of an
approaching cold front. Expect areas of showers and isolated
thunderstorms tonight into early Tuesday ahead of this boundary,
with the greatest coverage expected from tampa bay northward. Winds
will become north to northeast late Tuesday into Wednesday behind
the front, with speeds increasing to cautionary levels at times.
An area of sea fog is lingering offshore the nature coast region
this afternoon and additional development is likely tonight and into
Tuesday morning, extending southward across the rest of the waters.
The sea fog potential will end from north to south Tuesday evening
with the passage of the cold front.
Relative humidity values will remain above critical levels with no
fire weather concerns. There is a good potential for a wetting rain
for most locations tonight into Tuesday ahead of a cold front, then
drier and cooler air arrives for Wednesday. There is the potential
for some sea fog to move onshore from the gulf tonight into Tuesday
morning, with the greatest potential from sarasota northward.
Preliminary point temps pops
Tpa 64 72 51 66 60 50 0 10
fmy 65 77 59 73 30 50 10 10
gif 64 76 52 69 60 50 0 10
srq 63 71 54 68 60 50 10 10
bkv 63 73 46 66 70 60 0 0
spg 63 71 52 65 60 50 10 10
Tbw watches warnings advisories
Gulf waters... None.
Short term aviation marine fire weather... 05 carlisle
mid term long term decision support... 69 close
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|
|CWBF1 - 8726724 - Clearwater Beach, FL||9 mi||41 min||SSE 16 G 18||75°F||55°F||1016.7 hPa (-3.7)|
|CLBF1||10 mi||107 min||SSE 5.1 G 11||80°F||1017.5 hPa|
|SAPF1 - 8726520 - St. Petersburg, FL||11 mi||41 min||S 7 G 8||74°F||59°F||1016.5 hPa (-3.6)|
|OPTF1 - 8726607 - Old Port Tampa, FL||12 mi||41 min||SSW 5.1 G 6||68°F||60°F||1017 hPa (-3.4)|
|MTBF1||17 mi||41 min||W 5.1 G 5.1||68°F||1017 hPa (-3.5)|
|TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL||19 mi||53 min||S 8.9 G 13|
|PMAF1||19 mi||41 min||78°F||57°F||1016.5 hPa (-3.8)|
|TSHF1 - 8726667 - East Bay Causeway, FL||19 mi||47 min||S 12 G 14|
|MCYF1||19 mi||41 min||61°F|
|42098||20 mi||71 min||58°F||1 ft|
|FHPF1 - Fred Howard Park, FL||20 mi||107 min||S 9.9 G 13||70°F||1019.2 hPa|
|42013 - C10 - Navy-2||48 mi||71 min||SE 7.8 G 7.8||62°F|
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||6 mi||48 min||S 13||10.00 mi||Fair||81°F||62°F||53%||1016.9 hPa|
|Albert Whitted Airport, FL||10 mi||48 min||SSW 9||10.00 mi||Fair||78°F||62°F||58%||1016.4 hPa|
|Macdill Air Force Base, Fl., FL||14 mi||1.7 hrs||SSE 11||10.00 mi||Fair||75°F||62°F||65%||1018.6 hPa|
|Tampa, Tampa International Airport, FL||15 mi||48 min||SSW 9||10.00 mi||Partly Cloudy||78°F||63°F||60%||1016.9 hPa|
|Tampa, Peter O Knight Airport, FL||18 mi||46 min||S 6||10.00 mi||Fair||79°F||62°F||58%||1017.3 hPa|
Wind History from PIE (wind in knots)
|1 day ago||Calm||Calm||Calm||NW||N||N||N||N||Calm||N||N||NE||N||NE||N||E||NE||NE||NE||E||E||E||NE|
|2 days ago||N||N||NW||NW||N||N||N||N||NE||NE||NE||NE||NE||NE||NE||NE||N||NE||N||NE||E||N||N |
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|Indian Rocks Beach (inside) |
Click for Map
Mon -- 03:29 AM EST 2.06 feet High Tide
Mon -- 07:22 AM EST Sunrise
Mon -- 10:05 AM EST -0.03 feet Low Tide
Mon -- 10:52 AM EST Moonrise
Mon -- 04:19 PM EST 2.09 feet High Tide
Mon -- 06:03 PM EST Sunset
Mon -- 10:42 PM EST 0.35 feet Low Tide
Mon -- 11:11 PM EST Moonset
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 -- 12:35 AM EST 0.00 knots Slack
Mon -- 03:19 AM EST 0.91 knots Max Flood
Mon -- 06:02 AM EST -0.00 knots Slack
Mon -- 07:20 AM EST Sunrise
Mon -- 09:30 AM EST -1.13 knots Max Ebb
Mon -- 10:51 AM EST Moonrise
Mon -- 12:58 PM EST 0.00 knots Slack
Mon -- 03:54 PM EST 1.04 knots Max Flood
Mon -- 06:02 PM EST Sunset
Mon -- 07:13 PM EST -0.00 knots Slack
Mon -- 10:19 PM EST -0.84 knots Max Ebb
Mon -- 11:10 PM EST Moonset
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 (14,3,4,5)(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.