Wednesday, September20, 2017 L-36.com


Marine Weather and Tides
Gulfport, 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 7:17AMSunset 7:29PM Wednesday September 20, 2017 9:02 AM EDT (13:02 UTC) Moonrise 6:36AMMoonset 7:04PM Illumination 0% Phase: New Moon; Moon at 29 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- 346 Am Edt Wed Sep 20 2017
Today..Northeast winds around 5 knots. Bay and inland waters smooth.
Tonight..East winds around 10 knots. Bay and inland waters a light chop.
Thursday..Northeast winds around 5 knots. Bay and inland waters smooth.
Thursday night..East winds around 10 knots. Bay and inland waters a light chop. Isolated showers.
Friday..Northeast winds around 10 knots. Bay and inland waters a light chop. Isolated Thunderstorms. Scattered showers in the afternoon.
Friday night..Northeast winds around 10 knots. Bay and inland waters a light chop. Scattered showers in the evening. Isolated Thunderstorms.
Saturday..Northeast winds around 10 knots. Bay and inland waters a light chop. Scattered showers and isolated Thunderstorms.
Saturday night..Northeast winds around 15 knots diminishing to 5 to 10 knots after midnight. Bay and inland waters a moderate chop. Scattered showers in the evening. Isolated Thunderstorms.
Sunday..North winds around 10 knots. Bay and inland waters a light chop. Isolated showers.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 346 Am Edt Wed Sep 20 2017
Synopsis..Relaxed high pressure will dominate the gulf of mexico through the end of the week. The high continues during the weekend but with a tightening pressure gradient as hurricane maria moves across the southwestern waters of the atlantic...with increased winds on gulf waters. Mariners should Monitor the progress of hurricane maria and stay up to date with forecasts for the gulf of mexico.

7 Day Forecast for Marine Location Near Gulfport, FL
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location: 27.74, -82.69     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 201120
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
720 am edt Wed sep 20 2017

Aviation
20 12z tafs.VFR conditions will prevail at all terminals through
the next 24 hours. Very few clouds this morning, then slightly
increasing to a sct CU deck this afternoon. Northern terminals
will stay dry while pgd fmy rsw may see a stray shower this
afternoon, so will cover that with vcsh after 18z. Winds
will remain light less than 10 knots. No other aviation
impacts expected.

Prev discussion issued 347 am edt Wed sep 20 2017
short term (today - Thursday)...

aloft - ridging across the gulf of mexico and fl slips west as a trough
initially from the ohio valley to the deep south slides to the eastern
seaboard... And down into north fl and adjacent waters. Surface - broad
high pressure sprawling across the southeastern u.S. And into the gulf
continues as a weak trough eases across the southern half of the state.

Northeasterly flow continues to prevail... Light enough to allow afternoon
sea breezes to shift winds to onshore along the coast... With some lower
level moisture streaming across. Much of hillsborough and polk counties
and northward stay fairly dry with pwat values of 1.3 to 1.5 inches.

South of those counties the pwat ranges from 1.5 to 1.8 inches.

The higher moisture along with the trough will support lower rain
chances for the southeast and southern counties in the afternoons.

Anticipate mainly showers but there could be isolated
thunderstorms... With activity ending early evening. Temperatures
continue to run above normal... A couple of degrees for the lows
and 2 to 3 degrees for the highs.

Mid term long term (Thursday night-Tuesday)...

deeper moisture will overspread the entire region for Friday
Saturday with an increasing east to northeast flow setting up. This
combined with daytime heating and the sea breezes will lead to
scattered to numerous mainly afternoon and evening showers and
thunderstorms both days. Sunday into early next week the global
models are continuing to move hurricane maria northward well east of
the florida peninsula with the northeast flow shifting to a more
northerly direction bringing some drier air back southward into the
area Sunday through Tuesday which will lower rain chances to 20
percent or less on these days.

Daytime high temperatures will be near to a couple of degrees above
normal through the period with overnight remaining near normal.

Aviation...

20 06z tafs.VFR prevails with few-sct clouds although lal may see
limited br around sunrise. Increasing moisture in the south could
support isold shra tsra... Will keep pgd fmy rsw just vcsh for now.

Light NE winds increase slightly in the morning... With some of the
coastal terminals shifting during the afternoon to onshore.

Marine...

high pressure with a relaxed gradient will dominate the waters
through the end of the week with benign conditions... Except for
higher winds and seas near thunderstorms. During the weekend
hurricane maria moving across the southern waters of the atlantic
will tighten the gradient with an increase in wind speeds.

Mariners should monitor the progress of hurricane maria... Detailed
information on maria may be found on advisories from the national
hurricane center.

Fire weather...

while slightly drier air continues across parts of the area for the
next couple of days the minimum rh remain above critical values.

Increasing moisture and rain chances toward the end of the week will
help maintain higher rh.

Hydrology...

flooding continues on many rivers and creeks... Most have crested
and are on a downward trend. Although the withlacoochee river at both
croom and trilby are expected crest in the next couple of days.

While water levels will continue to slowly decrease residents near
rivers and creeks should monitor levels and use caution in
around any residual flooded areas.

Preliminary point temps pops
Tpa 92 75 91 75 10 0 10 20
fmy 91 75 92 74 30 20 30 20
gif 92 72 91 73 10 0 10 10
srq 90 75 91 74 20 10 20 20
bkv 92 71 91 71 10 0 10 10
spg 90 76 89 75 10 10 10 20

Tbw watches warnings advisories
Fl... None.

Gulf waters... None.

Aviation... 74 wynn
decision support... 25 davis


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CLBF1 0 mi69 min NE 1.9 G 1.9 76°F 1015.3 hPa
SAPF1 - 8726520 - St. Petersburg, FL 4 mi51 min NE 6 G 8 79°F 83°F1016.2 hPa
MTBF1 7 mi45 min ENE 6 G 9.9 79°F 1016.1 hPa
PMAF1 10 mi45 min 76°F 83°F1015.3 hPa
MCYF1 18 mi45 min 82°F
CWBF1 - 8726724 - Clearwater Beach, FL 18 mi87 min NE 5.1 G 6 77°F 84°F1016.2 hPa
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 19 mi57 min N 5.1 G 7
TSHF1 - 8726667 - East Bay Causeway, FL 19 mi57 min NNE 4.1 G 6
FHPF1 - Fred Howard Park, FL 29 mi69 min ENE 5.1 G 6 76°F 1016.7 hPa
42013 - C10 - Navy-2 41 mi93 min 84°F
VENF1 - Venice, FL 48 mi63 min ENE 7 G 8.9 76°F 83°F1015.3 hPa (+1.0)73°F
ARPF1 - APK - Aripeka, FL 48 mi129 min E 1.9 G 2.9 73°F 1016.1 hPa

Wind History for St. Petersburg, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Albert Whitted Airport, FL4 mi70 minNE 510.00 miFair79°F73°F85%1015.2 hPa
St. Petersburg/Clearwater Airport, FL12 mi70 minENE 410.00 miFair79°F73°F82%1016 hPa
Macdill Air Force Base, Fl., FL12 mi65 minNE 310.00 miFair72°F71°F99%1016.2 hPa
Tampa, Peter O Knight Airport, FL18 mi68 minNNE 510.00 miMostly Cloudy77°F77°F100%1016.3 hPa
Tampa, Tampa International Airport, FL18 mi70 minNNE 410.00 miFair77°F71°F82%1016.3 hPa

Wind History from SPG (wind in knots)
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Last 24hrNE6E9E7NE8NE9NE11NE8NE9E10E11E11E11E13E12E12E10SE9SE9SE8E7E6NE4NE5E9
1 day agoN10NE13N12NE13NE9N7N9N10N10
G17
N11N8N10NE9NE10NE10E10NE7N4E9E8NE7N3N5N4
2 days agoNE9E9E7NE8NE9NE8NE11NE9N8N10N7N8N7N7N6NE5E7E7N4N4N4N4N6N5

Tide / Current Tables for Gulfport, Boca Ciega Bay, Florida
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Gulfport
Click for Map
Wed -- 01:18 AM EDT     2.02 feet High Tide
Wed -- 01:30 AM EDT     New Moon
Wed -- 07:18 AM EDT     Sunrise
Wed -- 07:33 AM EDT     0.77 feet Low Tide
Wed -- 07:35 AM EDT     Moonrise
Wed -- 01:27 PM EDT     2.38 feet High Tide
Wed -- 07:29 PM EDT     Sunset
Wed -- 08:04 PM EDT     Moonset
Wed -- 08:09 PM EDT     0.73 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.9221.81.51.210.80.811.41.82.22.42.42.21.91.51.10.90.70.81.11.5

Tide / Current Tables for Port Manatee, Tampa Bay, Florida Current
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Port Manatee
Click for Map
Wed -- 12:53 AM EDT     1.01 knots Max Flood
Wed -- 01:30 AM EDT     New Moon
Wed -- 03:59 AM EDT     -0.00 knots Slack
Wed -- 06:44 AM EDT     -0.77 knots Max Ebb
Wed -- 07:18 AM EDT     Sunrise
Wed -- 07:35 AM EDT     Moonrise
Wed -- 09:22 AM EDT     0.00 knots Slack
Wed -- 12:44 PM EDT     1.09 knots Max Flood
Wed -- 04:02 PM EDT     -0.00 knots Slack
Wed -- 07:05 PM EDT     -0.93 knots Max Ebb
Wed -- 07:28 PM EDT     Sunset
Wed -- 08:04 PM EDT     Moonset
Wed -- 10:06 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.910.90.5-0-0.4-0.7-0.8-0.6-0.20.30.811.10.90.50-0.5-0.8-0.9-0.8-0.5-0.10.4

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 (9,2,3,4)
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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.