Wednesday, October18, 2017 L-36.com


Marine Weather and Tides
Gibsonton, 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 7:31AMSunset 6:58PM Wednesday October 18, 2017 4:35 PM EDT (20:35 UTC) Moonrise 5:22AMMoonset 5:38PM Illumination 2% Phase: Waning Crescent; Moon at 28 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- 252 Pm Edt Wed Oct 18 2017
.small craft advisory in effect from 7 pm edt this evening through Thursday morning...
Tonight..Northeast winds around 15 knots becoming around 20 knots in the late evening. 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..Northeast winds around 15 knots. Bay and inland waters a moderate chop. Isolated showers in the afternoon.
Friday night..East winds around 15 knots. Bay and inland waters a moderate chop. Isolated showers in the evening.
Saturday..East winds around 15 knots. Bay and inland waters a moderate chop. Isolated showers.
Saturday night..East winds around 15 knots. Bay and inland waters a moderate chop. Isolated showers.
Sunday..Southeast winds around 10 knots. Bay and inland waters a light chop. Scattered showers.
Sunday night..Southeast winds around 10 knots. Bay and inland waters a light chop. Scattered showers and isolated Thunderstorms.
Monday..Southeast winds around 10 knots. Bay and inland waters a light chop. Numerous showers and isolated Thunderstorms.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 252 Pm Edt Wed Oct 18 2017
Synopsis..Strong high pressure centered over the eastern states extends southward across the waters with a tight gradient through the end of the week. During the weekend the high pressure slides east out over the atlantic and allows the gradient to relax. A cold front approaches from the west early next week.

7 Day Forecast for Marine Location Near Gibsonton, FL
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location: 27.83, -82.49     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 181837
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
237 pm edt Wed oct 18 2017

Short term (rest of today - Thursday)
Aloft - troughiness from the midwest to the southeast u.S. Slides
east to the atlantic Thu as ridging builds into the nation S mid-
section... Stretching from the central gulf of mexico northward
through the mississippi vally by the afternoon. Surface - high
pressure on the mid-atlantic coast builds down to the southern
appalachians by late thu... Ridging down across the gulf and fl
through the period. A broad diffuse frontal boundary stalled
across central fl slowly washes out as it drifts south.

During the rest of the afternoon and overnight the gradually
decaying frontal boundary will maintain enough moisture for some
localize cloudiness along with isolated to scattered low topped
showers which end during the evening. Low tonight will be above
normal but at least they will be in the 60s north to lower 70s
south.

For Thu the approaching upper ridge will turn winds at mid and upper
levels to northwesterly and result in subsidence and drying aloft
with a large swath of air with pwat values of 1 to 1.2 inches
moving mainly down the gulf side of the state. A continued
northeasterly flow at lower levels will provide slightly more
moisture for interior and far southern locations with only
isolated low topped showers. Highs run above normal with the highs
thu a bit above this afternoon readings... Thanks to the upper
ridge.

Mid-long term (Thursday night - Wednesday)
Large upper ridge from the ohio river valley into the gulf of
mexico slowly moves eastward to along and down the eastern
seaboard Saturday then western atlantic Sunday. Large surface high
pressure centered over the eastern u.S. To slowly move into the
western atlantic into Sunday. Breezy easterly low level flow with
overnight surges to continue into the weekend. Surface-upper
ridging to keep temps warm and humid running 2 to 4+ degrees above
seasonal averages while rain chances generally remain slight.

Amplifying longwave trough to move through the plains states into
the mississippi river valley Sunday with southern end shortwave
lagging in the deep south Monday. Secondary longwave drops from
the great lakes and comes in phase to kick shortwave into the
atlantic with deep troughiness over the eastern u.S. Through mid
week. A surface storm system to develop in the N gulf Monday and
move quickly through the deep south Tuesday and into new england
Wednesday. The attendant cold front is currently progged to sweep
through the fl peninsula Tuesday with scattered to numerous
showers and thunderstorms ahead of and along the front. Canadian
high pressure will quickly move into the region bringing a
significant cool down to the area by the middle of next week.

Aviation
18 18z - 19 18z. PrevailingVFR but with tempo bkn MVFR
cigs and ocnl gusty NE winds through the afternoon. Isold
shra mainly inland will have minimal impact at the
terminals. Overnight NE winds remain stout enough to favor
stratus rather than fog as slightly drier air begins to
filter in... This will limit any psbl MVFR LCL ifr cigs.

Marine
A tight pressure gradient will keep winds in caution or advisory
speeds for the next couple of days... Especially during evening
surges. Caution advisory headlines will be in place through the
end of the week. The gradient relaxes during the weekend with
wind speeds diminishing... Until early next week when a cold front
approaches from the west.

Fire weather
While somewhat drier air spreads into much of the area the humidities
will remain above critical levels. Robust northeasterly 20 foot and
transport winds will result in elevated dispersion values.

Preliminary point temps pops
Tpa 70 89 73 88 0 10 0 20
fmy 72 89 72 88 10 10 10 30
gif 69 88 71 86 10 10 10 20
srq 71 89 72 87 0 10 10 20
bkv 67 87 69 87 0 10 10 20
spg 71 86 73 88 0 10 10 20

Tbw watches warnings advisories
Fl... None.

Gulf waters... Small craft advisory until 10 am edt Thursday for waters
from englewood to tarpon springs fl out 20 to 60 nm-
waters from tarpon springs to suwannee river fl out
20 to 60 nm.

Small craft advisory from 7 pm this evening to 10 am edt
Thursday for coastal waters from englewood to tarpon
springs fl out 20 nm-coastal waters from tarpon
springs to suwannee river fl out 20 nm-tampa bay
waters-waters from bonita beach to englewood fl out
20 to 60 nm.

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
OPTF1 - 8726607 - Old Port Tampa, FL 4 mi48 min NE 6 G 12 83°F 81°F1017.3 hPa
MCYF1 7 mi48 min 81°F
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 8 mi66 min NNE 12 G 16
TSHF1 - 8726667 - East Bay Causeway, FL 8 mi60 min NE 13 G 18
SAPF1 - 8726520 - St. Petersburg, FL 9 mi54 min ENE 12 G 19 83°F 81°F1017.5 hPa
MTBF1 13 mi48 min ENE 18 G 22 81°F 1017.3 hPa
CLBF1 13 mi102 min ENE 5.1 G 9.9 84°F 1016.2 hPa
PMAF1 14 mi48 min 82°F 80°F1016.2 hPa
CWBF1 - 8726724 - Clearwater Beach, FL 21 mi48 min ENE 9.9 G 18 82°F 80°F1017.7 hPa
FHPF1 - Fred Howard Park, FL 28 mi102 min ENE 18 G 22 81°F 1018.5 hPa
ARPF1 - APK - Aripeka, FL 43 mi102 min E 8.9 G 15 82°F 1018.3 hPa

Wind History for Old Port Tampa, FL
(wind in knots)    EDIT      (on/off)   Help
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NE6
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G12
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NW8
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N10
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NE7
G14
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NW14
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G5
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Macdill Air Force Base, Fl., FL3 mi99 minNE 8 G 1410.00 miMostly Cloudy82°F68°F62%1017.7 hPa
Tampa, Peter O Knight Airport, FL6 mi41 minENE 15 G 2110.00 miPartly Cloudy79°F69°F74%1017.6 hPa
Albert Whitted Airport, FL8 mi43 minENE 1910.00 miA Few Clouds and Breezy80°F71°F74%1016.9 hPa
Tampa, Tampa International Airport, FL10 mi43 minNE 10 G 1910.00 miMostly Cloudy82°F68°F63%1017.9 hPa
St. Petersburg/Clearwater Airport, FL12 mi43 minENE 1310.00 miFair84°F70°F63%1017.3 hPa
Tampa, Vandenberg Airport, FL14 mi41 minENE 15 G 1810.00 miPartly Cloudy81°F71°F74%1017.9 hPa
Plant City, Plant City Municipal Airport, FL21 mi41 minNE 10 G 1910.00 miOvercast81°F69°F70%1018.6 hPa

Wind History from MCF (wind in knots)
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Last 24hrNE13
G17
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G18
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6NE8
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--NE8
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1 day agoNW8N4N7N6N6NE6CalmNE3CalmE5E5NE5N4E12E14E12NE5NE9NE7NE10
G15
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NE7NE10
G15
2 days agoNW10CalmN5CalmCalmN5NE3E4E5E4E4E5E5E5E4NE4E4E4E3S5W5W5W6NW7

Tide / Current Tables for Ballast Point, Florida
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Ballast Point
Click for Map
Wed -- 01:59 AM EDT     2.71 feet High Tide
Wed -- 06:21 AM EDT     Moonrise
Wed -- 07:32 AM EDT     Sunrise
Wed -- 08:19 AM EDT     0.65 feet Low Tide
Wed -- 02:39 PM EDT     2.67 feet High Tide
Wed -- 06:37 PM EDT     Moonset
Wed -- 06:57 PM EDT     Sunset
Wed -- 08:23 PM EDT     1.02 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.32.62.72.62.31.81.30.90.70.711.41.92.42.62.72.52.11.61.311.11.31.8

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
Wed -- 12:12 AM EDT     1.15 knots Max Flood
Wed -- 03:14 AM EDT     -0.00 knots Slack
Wed -- 06:21 AM EDT     Moonrise
Wed -- 06:45 AM EDT     -1.23 knots Max Ebb
Wed -- 07:32 AM EDT     Sunrise
Wed -- 09:40 AM EDT     0.00 knots Slack
Wed -- 12:28 PM EDT     1.17 knots Max Flood
Wed -- 03:44 PM EDT     -0.00 knots Slack
Wed -- 06:38 PM EDT     Moonset
Wed -- 06:57 PM EDT     Sunset
Wed -- 07:09 PM EDT     -1.03 knots Max Ebb
Wed -- 09:53 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.11.10.70.1-0.4-0.9-1.2-1.2-1-0.50.20.81.11.10.80.4-0.1-0.6-0.9-1-0.9-0.50.10.7

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 (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.