Friday, January19, 2018 L-36.com


Marine Weather and Tides
Thonotosassa, 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 7:20AMSunset 6:01PM Friday January 19, 2018 6:12 PM EST (23:12 UTC) Moonrise 9:01AMMoonset 8:25PM Illumination 10% Phase: Waxing Crescent; Moon at 3 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- 231 Pm Est Fri Jan 19 2018
Tonight..North winds around 10 knots then becoming northeast after midnight. Bay and inland waters a light chop.
Saturday..Northeast winds around 10 knots. Bay and inland waters a light chop.
Saturday night..Northeast winds around 10 knots. Bay and inland waters a light chop.
Sunday..East winds around 10 knots. Bay and inland waters a light chop.
Sunday night..East winds around 10 knots. Bay and inland waters a light chop.
Monday..East winds around 10 knots then becoming south around 5 knots in the afternoon. Bay and inland waters a light chop.
Monday night..Southwest winds around 5 knots then becoming south after midnight. Bay and inland waters smooth. A slight chance of showers.
Tuesday..East winds around 5 knots then becoming north in the afternoon. Bay and inland waters smooth. A slight chance of showers.
Tuesday night..Northeast winds around 10 knots. Bay and inland waters a light chop.
Wednesday..Northeast winds around 10 knots. Bay and inland waters a light chop. A slight chance of showers.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 231 Pm Est Fri Jan 19 2018
Synopsis..High pressure north of the waters moves east through the early portion of next week but ridges back into the gulf of mexico. A cold front sweeps down the state late Monday or early Tuesday... Quickly followed by high pressure. Winds veer all the way around at speeds of 15 knots or less.

7 Day Forecast for Marine Location Near Thonotosassa, FL
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location: 28.06, -82.28     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 191930
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
230 pm est Fri jan 19 2018

Short term (this afternoon through Saturday)
Aloft - a low on the british columbia coast troughs down pacific
coastal waters to offshore central ca while a short wave trough
is on the gulf coast... Along the tx la border. The axis of an
atlantic ridge hovers above the less antilles. These features are
providing southwesterly flow over the region. Surface - high
pressure centered on the al fl border sprawls across the southeast
quarter of the nation and most of the gulf of mexico... Providing
northeasterly low level flow for the area. A frontal boundary
stretches from the northern rockies to the upper great lakes.

The western upper trough slides into intermountain west... The
short wave trough moves to the southeastern states... And the ridge
meanders above the lesser antilles. These provide southwesterly
to westerly flow aloft the area. The surface high pressure center
tracks east... Reaching latitude 30 longitude 70 Sat afternoon...

with low level flow shifting to easterly.

The southwest west flow aloft will slowly bring in a subtle increase
in moisture. Model pwat values of 0.6 inches or less this afternoon
climb to 0.5 to 1.0 inches over night then around 1.0 inch for sat.

The bulk of this is aloft and results in high cloudiness streaming
across. The limited moisture at lower levels will preclude any
significant fog although can not rule out patchy ground fog... But
not enough to include in the forecasts. The warming trend
continues but lows stay below normal... Especially up north. Levy
county could see localized 32 degrees but only briefly so a warning
is not warranted. And despite the dry air levy may see a few
pockets of frost. The highs Sat will be warmer that today and may
be to close to normal... At least in the south.

Mid term long term (Saturday night - Friday)
Models in good agreement through mid week then start to diverge.

Expect shortwave trough to quickly move over the region to finish
the weekend then large upper low moves from the southern rockies
through the great lakes and then new england by mid week. Weak
ridging from the N carib begins to nudge into the area late next
week.

At the surface, weakened western atlantic high pressure ridges over
the area with light e-se flow continuing to warm temps and moderate
dew points through the weekend and into Monday. Trailing cold front
associated with mid western storm system to move over fl peninsula
late Monday into Tuesday with about 20%-40% pops area wide for light
showers. High pressure to move from the plains and build through the
deep south mid week, but source region not too cold, so temps drop
to near normal levels. The high shifts into the W atlantic at the
end of the week with breezy easterly flow and some weak instability
to keep isolated rain chances in the forecast as temps warm.

Aviation
18z tafs.VFR conditions continue under increasing high clouds.

Lower levels remain fairly dry... Precluding any significant fg br.

Although lal and pgd could see limited br... But will leave out of
those tafs. Light n-ne winds take on a more onshore component this
afternoon then shift back to the n-ne this evening... Then NE toward
sunrise sat.

Marine
High pressure north of the waters moves east... Out over the atlantic
sat... With northeast winds becoming easterly and a gradient relaxed
enough to allow an onshore shift in the winds near the coast this
afternoon and again sat. This high moves east during early in the
week with winds veering to southerly... And continue veering mid to
late week as a font sweeps through... And is quickly followed by
high pressure building in. Speeds remain rather benign... No more
than 15 knots.

Fire weather
Dry air continues this afternoon with many locations at or below 35
percent. However erc values and wind speeds are both too low to
support any red flag warnings. Moistening of the air mass begins sat
with the minimum rh above critical levels for much of next week.

Preliminary point temps pops
Tpa 46 68 55 74 0 0 10 0
fmy 51 72 58 77 0 0 10 0
gif 46 69 54 75 0 0 10 10
srq 48 68 56 73 0 0 0 0
bkv 38 69 50 74 0 0 10 0
spg 49 67 55 73 0 0 0 0

Tbw watches warnings advisories
Fl... None.

Gulf waters... None.

Short term aviation marine fire weather... 09 rude
mid term long term decision support... 25 davis


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TSHF1 - 8726667 - East Bay Causeway, FL 12 mi49 min WNW 4.1 G 5.1
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 12 mi55 min W 1.9 G 4.1
MCYF1 13 mi43 min 59°F
OPTF1 - 8726607 - Old Port Tampa, FL 20 mi43 min NNW 6 G 6 57°F 56°F1023.9 hPa
FHPF1 - Fred Howard Park, FL 28 mi79 min N 9.9 G 12 51°F 1025.3 hPa
SAPF1 - 8726520 - St. Petersburg, FL 28 mi43 min N 2.9 G 5.1 63°F 58°F1023.6 hPa
CWBF1 - 8726724 - Clearwater Beach, FL 30 mi43 min N 12 G 14 51°F 53°F1024.6 hPa
CLBF1 31 mi79 min WNW 4.1 G 5.1 64°F 1023 hPa
MTBF1 32 mi43 min WNW 8.9 G 9.9 57°F 1024 hPa
PMAF1 33 mi43 min 56°F 57°F1023.8 hPa
42098 47 mi43 min 58°F1 ft

Wind History for TPA Cruise Terminal 2, FL
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Tampa, Vandenberg Airport, FL5 mi78 minN 010.00 miFair64°F39°F40%1024 hPa
Plant City, Plant City Municipal Airport, FL7 mi78 minN 010.00 miFair66°F39°F37%1024.4 hPa
Tampa, Peter O Knight Airport, FL13 mi78 minWNW 310.00 miFair63°F42°F49%1024 hPa
Lakeland Regional, FL15 mi83 minN 010.00 miClear64°F39°F40%1024 hPa
Tampa, Tampa International Airport, FL15 mi80 minW 12 G 1610.00 miA Few Clouds65°F43°F45%1024 hPa
Macdill Air Force Base, Fl., FL19 mi77 minN 410.00 miFair63°F42°F49%1024 hPa
St. Petersburg/Clearwater Airport, FL24 mi80 minNW 810.00 miFair61°F39°F46%1023.9 hPa

Wind History from VDF (wind in knots)
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Last 24hrNE3N4N3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNE6E5CalmNW4CalmSW3S4S4Calm
1 day agoNW9
G14
NW4NW6NW5NW4N9
G14
N6N7N9CalmN6N7N6
G14
N5N6NE6N5NE4E3N6N3NE3CalmN3
2 days agoCalmCalmCalmE5CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNW5W4W7NW11
G15
NW12
G17
NW11
G19
NW13
G20

Tide / Current Tables for Hillsborough Bay, Tampa Bay, Tampa Bay, Florida
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Hillsborough Bay
Click for Map
Fri -- 02:19 AM EST     2.46 feet High Tide
Fri -- 07:21 AM EST     Sunrise
Fri -- 09:01 AM EST     Moonrise
Fri -- 10:15 AM EST     -0.72 feet Low Tide
Fri -- 04:43 PM EST     1.53 feet High Tide
Fri -- 05:59 PM EST     Sunset
Fri -- 08:26 PM EST     Moonset
Fri -- 09:37 PM EST     1.14 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
22.32.42.42.11.71.10.5-0.1-0.5-0.7-0.6-0.30.30.81.21.51.51.51.41.21.21.21.3

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 -- 12:57 AM EST     0.99 knots Max Flood
Fri -- 03:38 AM EST     -0.00 knots Slack
Fri -- 07:21 AM EST     Sunrise
Fri -- 07:34 AM EST     -1.34 knots Max Ebb
Fri -- 09:01 AM EST     Moonrise
Fri -- 11:36 AM EST     0.00 knots Slack
Fri -- 02:30 PM EST     1.08 knots Max Flood
Fri -- 06:00 PM EST     Sunset
Fri -- 06:06 PM EST     -0.00 knots Slack
Fri -- 08:26 PM EST     Moonset
Fri -- 08:31 PM EST     -0.62 knots Max Ebb
Fri -- 10:56 PM EST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.810.80.3-0.2-0.7-1.1-1.3-1.3-1.2-0.8-0.40.20.8110.80.50-0.4-0.6-0.6-0.40

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 (18,4,5,8)
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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.