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 7:19AM||Sunset 6:01PM||Thursday January 18, 2018 12:44 AM EST (05:44 UTC)||Moonrise 8:22AM||Moonset 7:34PM||Illumination 2%|
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|GMZ853 Coastal Waters From Englewood To Tarpon Springs Fl Out 20 Nm- 813 Pm Est Wed Jan 17 2018 |
.small craft advisory in effect through Thursday morning...
Rest of tonight..North winds 20 to 25 knots diminishing to around 20 knots toward morning. Seas 5 to 7 feet. Bay and inland waters choppy to rough.
Thursday..North winds around 20 knots diminishing to 10 to 15 knots in the afternoon. Seas 4 to 6 feet subsiding to 3 to 5 feet. Bay and inland waters a moderate chop to choppy.
Thursday night..North winds 10 to 15 knots then becoming northeast 5 to 10 knots in the late evening and overnight. Seas 2 to 3 feet. Bay and inland waters a light chop.
Friday..Northeast winds around 10 knots then becoming north late in the afternoon. Seas 2 feet. Bay and inland waters a light chop.
Friday night..Northeast winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop.
Saturday..East winds around 10 knots then becoming north around 5 knots late in the afternoon. Seas 2 feet or less. Bay and inland waters a light chop.
Saturday night..East winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop.
Sunday..East winds around 10 knots. Seas 2 feet or less. Bay and inland waters a light chop.
Sunday night..East winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop.
Monday..Southeast winds around 10 knots then becoming south late in the afternoon. Seas 2 feet. Bay and inland waters a light chop. A slight chance of showers.
|GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 813 Pm Est Wed Jan 17 2018 |
Synopsis.. A strong cold front has exited the forecast waters this evening. Advisory level northerly wind and rough seas are ongoing across the eastern gulf of mexico and will continue into Thursday morning. High pressure building just to our north later Thursday will result in a period of lighter winds and calmer seas by Friday...lasting into at least the first half of the upcoming weekend.
7 Day Forecast for Marine Location Near Palmetto, FLHourly EDIT Help
Area Discussion for - Tampa Bay, FL  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus62 ktbw 180526|
area forecast discussion
national weather service tampa bay ruskin fl
1226 am est Thu jan 18 2018
Aviation (06z tafs)
Vfr conditions to continue through the period. Breezy
north northwest winds will decrease by mid to late
prev discussion... Issued 502 pm est Wed jan 17 2018
Freeze warning expanded
Update (overnight through early Thursday morning)...
late afternoon high resolution guidance members are adding
increased confidence in a full swing of the winds to a more
northerly or even slightly northeasterly direction during
the second of tonight. If this verifies, there is little
reason to believe that in an advection event such as this,
and given the nearby downstream temperatures already in the
forecast, that colder temperatures (dropping to around
freezing or slightly below) will not eventually make their
way into portions of northern pinellas, coastal manattee,
coastal sarasota, coastal charlotte, and interior lee
counties. Obviously every location in these zones will not
reach freezing... Especially some immediate shore locations,
and much of southern pinellas county, where at least some
fetch of flow off the waters is unavoidable. However,
confidence is now high enough in sufficient areal coverage
of freeze criteria to add these zones to the current freeze
warning. Hazard statement (npwtbw) has been issued, forecast
grids have been updated, and zfp will be issued shortly.
Although some colder temperatures have been added to these
areas above, and wind chills later tonight are now a couple
of degrees colder, wind chill advisories were already in
effect and these areas, and the changes do not impact or
change this hazard.
In addition... Although Thursday night will not be quite as
cold as tonight... It will still be well below normal. The
area of potential freezing temperatures will shrink
considerably from what is in place tonight, but portions of
the nature coast will not escape one additional night of
freezing temps. Have gone ahead and issued a freeze watch
for levy citrus sumter hernando and inland pasco county from
12am Friday through 9 am Friday.
Once this potential freeze is over... Temperatures really
begin to moderate. Temperatures warm very quickly this
weekend... And a lot of the region is expected to see
temperatures back up into the upper 60s to middle 70s by
Preliminary point temps pops
Tpa 52 38 61 47 0 0 0 0
fmy 57 41 67 51 0 0 0 0
gif 52 36 64 45 0 0 0 0
srq 53 39 62 49 0 0 0 0
bkv 50 30 61 39 0 0 0 0
spg 51 40 61 49 0 0 0 0
Tbw watches warnings advisories
Fl... High rip current risk until 7 am est this morning for
coastal charlotte-coastal hillsborough-coastal lee-
coastal manatee-coastal sarasota-pinellas.
Freeze warning until 9 am est this morning for coastal
charlotte-coastal hernando-coastal hillsborough-
coastal manatee-coastal pasco-coastal sarasota-desoto-
hardee-highlands-inland charlotte-inland hillsborough-
inland lee-inland manatee-inland sarasota-pinellas-
Wind chill advisory until 10 am est this morning for
coastal charlotte-coastal citrus-coastal hernando-
coastal hillsborough-coastal lee-coastal levy-coastal
manatee-coastal pasco-coastal sarasota-desoto-hardee-
highlands-inland charlotte-inland citrus-inland
hernando-inland hillsborough-inland lee-inland levy-
inland manatee-inland pasco-inland sarasota-pinellas-
Hard freeze warning until 9 am est this morning for
coastal citrus-coastal levy-inland citrus-inland
hernando-inland levy-inland pasco-sumter.
Freeze watch from late tonight through Friday morning for
coastal citrus-coastal hernando-coastal levy-inland
citrus-inland hernando-inland levy-inland pasco-
Gulf waters... Small craft advisory until 6 am est early this morning for
charlotte harbor and pine island sound-coastal waters
from tarpon springs to suwannee river fl out 20 nm-
tampa bay waters-waters from tarpon springs to
suwannee river fl out 20 to 60 nm.
Small craft advisory until 1 pm est this afternoon for
waters from bonita beach to englewood fl out 20 to 60
nm-waters from englewood to tarpon springs fl out 20
to 60 nm.
Small craft advisory until 10 am est this morning for
coastal waters from bonita beach to englewood fl out
20 nm-coastal waters from englewood to tarpon springs
fl out 20 nm.
Prior discussion... Bm
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|
|PMAF1||9 mi||44 min||45°F||54°F||1026.9 hPa (+0.4)|
|MTBF1||11 mi||44 min||N 17 G 21||45°F||1028 hPa (+0.7)|
|CLBF1||17 mi||110 min||N 5.1 G 8.9||46°F||1026.9 hPa|
|SAPF1 - 8726520 - St. Petersburg, FL||18 mi||44 min||NNE 7 G 14||43°F||58°F||1027.7 hPa (+0.7)|
|42098||20 mi||44 min||59°F||6 ft|
|OPTF1 - 8726607 - Old Port Tampa, FL||24 mi||44 min||N 17 G 20||43°F||57°F||1027.9 hPa (+0.8)|
|MCYF1||29 mi||44 min||59°F|
|TSHF1 - 8726667 - East Bay Causeway, FL||30 mi||50 min||N 11 G 17|
|42013 - C10 - Navy-2||30 mi||74 min||N 21 G 27||63°F|
|VENF1 - Venice, FL||31 mi||44 min||N 11 G 13||45°F||60°F||1027.2 hPa (+1.0)||33°F|
|CWBF1 - 8726724 - Clearwater Beach, FL||35 mi||44 min||N 23 G 26||44°F||55°F||1028.2 hPa (+0.9)|
|FHPF1 - Fred Howard Park, FL||46 mi||110 min||N 21 G 26||45°F||1028.8 hPa|
Wind History for C-Cut, FL(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Sarasota / Bradenton, Sarasota-Bradenton International Airport, FL||8 mi||51 min||N 9||10.00 mi||Fair||44°F||32°F||63%||1027 hPa|
|Albert Whitted Airport, FL||18 mi||51 min||NNE 12||10.00 mi||Fair||44°F||30°F||58%||1027.3 hPa|
|Macdill Air Force Base, Fl., FL||24 mi||1.8 hrs||NNE 10 G 16||10.00 mi||Fair||43°F||32°F||66%||1027.7 hPa|
Wind History from SRQ (wind in knots)
|1 day ago||NE||NE||NE||NE||NE||NE||NE||NE||E||NE||NE||E||NE||NE||NE|
|2 days ago||N||N||N||N||N||NE||NE||NE||NE||NE||N||N||N||NE||NE|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
Click for Map
Thu -- 12:07 AM EST 2.00 feet High Tide
Thu -- 07:21 AM EST Sunrise
Thu -- 08:19 AM EST -0.55 feet Low Tide
Thu -- 08:21 AM EST Moonrise
Thu -- 02:38 PM EST 1.11 feet High Tide
Thu -- 06:00 PM EST Sunset
Thu -- 07:09 PM EST 0.75 feet Low Tide
Thu -- 07:33 PM EST Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|Tampa Bay (Sunshine Skyway Bridge) |
Click for Map
Thu -- 02:07 AM EST -0.00 knots Slack
Thu -- 05:51 AM EST -1.60 knots Max Ebb
Thu -- 07:22 AM EST Sunrise
Thu -- 08:22 AM EST Moonrise
Thu -- 09:48 AM EST 0.00 knots Slack
Thu -- 01:04 PM EST 1.50 knots Max Flood
Thu -- 05:07 PM EST -0.00 knots Slack
Thu -- 06:00 PM EST Sunset
Thu -- 06:52 PM EST -0.34 knots Max Ebb
Thu -- 07:34 PM EST Moonset
Thu -- 08:36 PM EST 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 (0,6,7,8)(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.