Friday, April20, 2018 L-36.com


Marine Weather and Tides
West Lealman, 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 6:58AMSunset 8:00PM Friday April 20, 2018 4:22 PM EDT (20:22 UTC) Moonrise 9:54AMMoonset 11:55PM Illumination 29% Phase: Waxing Crescent; Moon at 5 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- 254 Pm Edt Fri Apr 20 2018
Tonight..North winds around 10 knots then becoming northeast around 15 knots after midnight. Bay and inland waters a moderate chop.
Saturday..East winds around 15 knots then becoming southeast 5 to 10 knots in the late morning and early afternoon, then becoming south late in the afternoon. Bay and inland waters a 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- 254 Pm Edt Fri Apr 20 2018
Synopsis..A weakening cold front will sink south over the waters today and will stall across the central waters tonight. Area of 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 mainly over the northern and central waters. A cold front will approach the waters Sunday night and Monday with an increasing chance of showers and possibly a few Thunderstorms.

7 Day Forecast for Marine Location Near West Lealman, FL
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location: 27.79, -82.74     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 201829
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
229 pm edt Fri apr 20 2018

Short term (tonight-Saturday)
Upper trough holds in W atlantic while upper ridging from the
gulf of mexico into the ohio river valley gets dampened as
the strong S plains low slowly moves eastward. Weak frontal
boundary at the surface washing out over the central to
south fl peninsula tonight and Saturday with high pressure
over the great lakes tonight splitting and sliding to the
carolina coast Saturday veering low level flow from NE tonight
to SE late tomorrow. Evening NE wind surge for occasionally
gusty winds and pleasant sensible wx condition this evening
into overnight. Models indicate low level moisture to increase
enough to produce low topped diurnal seabreeze showers and
possibly a few storms for the area late sat. Temps to remain
within a few degrees of seasonal averages.

Long term (Saturday night-Friday)
A closed upper-level low will move across the deep south this
weekend, with an associated surface low and frontal boundary moving
into the southeast. Rain chances will be on the rise on Sunday along
with rising dew points on a south to southeast wind flow ahead of
the cold front. These features will continue to shift eastward for
Monday, which looks like a cloudy and wet day with rain chances
possible at almost any time. Coverage will likely be highest in the
afternoon away from the immediate coastline as an onshore wind helps
to increase convergence across the interior.

The mid upper-level low will be slow to clear out on Tuesday, so
conditions will remain on the cloudy side for the first half of the
day, with a few showers still possible. Some relatively dry air will
then move over the region on Wednesday, followed by another dry
frontal boundary on Thursday. Temperatures both days will be fairly
seasonable. The next frontal system looks to approach for the end of
the week into next weekend, with a slight chance for showers.

Aviation
Front washing out over the fl peninsula with sct-bkn 040-050 cloud
deck areawide this afternoon. NE low level flow overnight to produce
MVFR CIGS strato CU deck of the atlantic from around 08z-12z.

Conditions improve after 12z Saturday toVFR.

Marine
High pressure continues to build into the region as the front
washes out over the state. NE winds will increase and become
gusty with the tightening gradient and evening surge to build
seas this evening through tonight and into Saturday morning.

Will hoist scec headlines over the northern central waters
tonight. Gradient to relax with seabreeze Saturday afternoon.

High pressure moves into the W atlantic with winds shifting
se Sunday. Southern storm system with cold front to move
through the region Mon mon nt with rain chances. High pressure
to build into the region Tue Wed with w-nw winds and seas.

Fire weather
Low level moisture will continue to increase through the
weekend and into next week with chances of showers and storms.

Preliminary point temps pops
Tpa 68 82 70 83 10 40 30 50
fmy 68 87 70 86 0 20 20 50
gif 68 81 69 84 20 40 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.

Short term aviation marine fire weather... 25 davis
mid term long term decision support... 05 carlisle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CLBF1 5 mi89 min W 7 G 8 78°F 1019.2 hPa
SAPF1 - 8726520 - St. Petersburg, FL 6 mi53 min ESE 1.9 G 2.9 79°F 76°F1019.1 hPa
OPTF1 - 8726607 - Old Port Tampa, FL 11 mi53 min SSW 5.1 G 6 76°F 76°F1019.5 hPa
MTBF1 12 mi53 min WNW 6 G 7 74°F 1019.7 hPa63°F
CWBF1 - 8726724 - Clearwater Beach, FL 14 mi53 min NW 5.1 G 7 74°F 75°F1019.9 hPa
PMAF1 14 mi53 min 74°F 77°F1019.4 hPa
42098 17 mi53 min 77°F1 ft
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 19 mi65 min SSW 5.1 G 7
MCYF1 19 mi53 min 76°F
FHPF1 - Fred Howard Park, FL 25 mi89 min NNW 8 G 9.9 75°F 1020.8 hPa
42013 - C10 - Navy-2 44 mi53 min NNW 1.9 G 3.9 77°F

Wind History for St. Petersburg, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Albert Whitted Airport, FL6 mi30 minVar 510.00 miFair80°F62°F54%1018.7 hPa
St. Petersburg/Clearwater Airport, FL9 mi30 minNNW 810.00 miPartly Cloudy83°F64°F53%1019.2 hPa
Macdill Air Force Base, Fl., FL13 mi27 minW 410.00 miA Few Clouds81°F59°F47%1019.6 hPa
Tampa, Tampa International Airport, FL17 mi30 minWSW 99.00 miA Few Clouds81°F62°F53%1019.2 hPa
Tampa, Peter O Knight Airport, FL18 mi28 minSSW 510.00 miPartly Cloudy81°F60°F51%1019.3 hPa

Wind History from SPG (wind in knots)
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Last 24hrW10
G18
NW7N6NW7NW4N3NW3CalmN3NW3CalmN3NW5N6CalmCalmN3N6E7SE6SE5SE5SE55
1 day agoW9W9NW6NW5N5N4N3N3NW3CalmW3CalmCalmW3NW3CalmSW4W9W8W11
G16
W105W10NW7
G15
2 days agoS8CalmN7N7N7N4NW5N4N3N4CalmCalmCalmN3CalmSE7E5E5SE4S5S7SE4E3SE4

Tide / Current Tables for Johns Pass, Boca Ciega Bay, Florida
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Johns Pass
Click for Map
Fri -- 05:17 AM EDT     1.27 feet High Tide
Fri -- 07:01 AM EDT     Sunrise
Fri -- 08:13 AM EDT     1.24 feet Low Tide
Fri -- 10:53 AM EDT     Moonrise
Fri -- 02:43 PM EDT     2.41 feet High Tide
Fri -- 07:59 PM EDT     Sunset
Fri -- 11:16 PM EDT     -0.31 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-00.30.711.21.31.31.21.21.31.41.61.92.22.42.42.321.51.10.60.1-0.2-0.3

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
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    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 (16,3,4,5)
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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.