Friday, June22, 2018 L-36.com


Marine Weather and Tides
Dunedin, FL

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 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.

Sunrise 6:34AMSunset 8:32PM Friday June 22, 2018 7:18 AM EDT (11:18 UTC) Moonrise 2:42PMMoonset 1:54AM Illumination 66% Phase: Waxing Gibbous; Moon at 9 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- 418 Am Edt Fri Jun 22 2018
Today..West winds around 10 knots. Bay and inland waters a light chop. Scattered Thunderstorms.
Tonight..Southwest winds around 10 knots. Bay and inland waters a light chop. Isolated Thunderstorms in the evening.
Saturday..West winds around 10 knots. Bay and inland waters a light chop. Isolated Thunderstorms.
Saturday night..Southwest winds around 10 knots. Bay and inland waters a light chop. Isolated Thunderstorms in the evening.
Sunday..Northwest winds around 5 knots. Bay and inland waters smooth. Isolated Thunderstorms in the morning, then scattered Thunderstorms in the afternoon.
Sunday night..North winds around 5 knots then becoming southeast around 5 knots in the late evening and overnight. Bay and inland waters smooth. Scattered Thunderstorms.
Monday..Southeast winds around 5 knots then becoming west in the afternoon. Bay and inland waters smooth. Isolated Thunderstorms in the morning, then scattered Thunderstorms in the afternoon.
Monday night..North winds around 5 knots then becoming south after midnight. Bay and inland waters smooth. Scattered Thunderstorms in the evening, then isolated Thunderstorms after midnight.
Tuesday..South winds around 5 knots then becoming west in the afternoon. Bay and inland waters smooth. Isolated Thunderstorms in the morning, then scattered Thunderstorms in the afternoon.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 418 Am Edt Fri Jun 22 2018
Synopsis..High pressure will remain south of the area today Saturday, keeping light westerly winds in place across the waters. The high pressure will then lift north early next week, with light winds becoming more variable. Isolated to scattered showers will be possible each day, mainly during the morning hours. Winds and seas will remain below headlines except in the vicinity of some of the stronger storms.

7 Day Forecast for Marine Location Near Dunedin, FL
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location: 28.01, -82.82     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 220721
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
321 am edt Fri jun 22 2018

Short term (today-Saturday)
Mid level ridging across the florida peninsula will continue
to weaken today and tonight as a cut off low moves through
the midwest and ohio river valley. The surface reflection of
this low will push a weak boundary trough axis into northern
florida, which will keep moisture elevated across the area,
with precipitable water values of around two inches or more.

The surface subtropical ridge axis will hold across the
florida straits, keeping westerly flow in place over the
forecast area. Under this pattern, a few morning showers and
thunderstorms will be possible developing over the eastern
gulf and along the coast and could shift inland through the
morning. Afternoon thunderstorms will develop over the
peninsula along sea breeze and outflow boundaries, with the
westerly flow pushing the storms inland through the
afternoon and evening, clearing the convection out from
west to east.

A similar pattern will setup Saturday, with light westerly
winds and abundant moisture. Morning showers and storms
developing over the gulf will push inland, then more
scattered storms will develop along sea breeze boundaries in
the afternoon before pushing east and inland. With the west
coast clearing out fairly early in the afternoon, the
highest storm chances will be inland during the mid
afternoon to early evening hours.

Mid long term (Saturday night-Thursday)
A broad u l trough will extend across much of the CONUS to
begin the period with an u l ridge over the florida
peninsula. An u l disturbance over the eastern great lakes
will weaken on Saturday as it lifts northeast and is
absorbed by a digging northern stream trough over eastern
canada. An u l disturbance will drop in over the central
plains Sunday and Monday which will help build the
downstream ridge over the southeast u.S. And florida.

U l pattern change across the CONUS early next week as a
strong u l trough pushes onshore the west coast of the
u.S. With strong quasi zonal flow develops across the
northern tier eventually extending from the pacific
northwest to new england by the end of the period... And a
strong u l ridge over the southern tier of the u.S. With the
center of the u l high gradually retrograding from the
southeastern states to the southern plains by mid week.

Warmest temperatures across west central and southwest
florida will likely occur Monday and Tuesday when the center
of the u l ridge is closest to the region with greatest 50h
around 592 or 593.

At the surface, transition day as strong high pressure over
the central atlantic gradually retreats a bit to the east.

The ridge axis will extend across the central florida
peninsula on Sunday. This will allow east southeast boundary
layer flow to develop over southwest florida which will
increase convergence along the west coast sea breeze
boundary... With higher pops and an increase in areal
coverage of afternoon showers thunderstorms south of the
ridge axis. Onshore flow north of the ridge axis across the
nature coast should still promote best chance of
showers thunderstorms during the late morning early
afternoon with activity gradually pushing inland through the
day.

High pressure will remain over the florida peninsula,
however the gradient will weaken early next week. This
will likely allow scattered showers thunderstorms to develop
along the west coast sea breeze boundary over the coastal
counties during the early afternoon... With the boundary
gradually pushing inland through the day eventually
colliding with the east coast sea breeze boundary over the
interior which will enhance shower thunderstorm activity
during the late afternoon to early evening hours. Stronger
insolation on Monday and Tuesday could lead to a few strong
storms with damaging wind gusts. Due to the weak boundary
layer flow, could see outflow boundaries push back to the
coast with a continued chance of showers thunderstorms
through the evening hours each day across all of west
central and southwest florida... Especially Monday and
Tuesday evening. Proximity to the u l ridge center will
create strong subsidence over the forecast area likely
delaying onset of convection. These type of set ups can
create favorable conditions for late evening thunderstorm
activity around tampa bay with excessive lightning... But
this is speculative several days out.

Aviation
GenerallyVFR conditions will continue overnight. A few
showers and thunderstorms will be possible moving onshore
near the tampa bay area terminals around sunrise, and could
cause brief flight category disruptions. Scattered
thunderstorms will develop across the area during the early
afternoon. These storms will clear out from west to east
through the afternoon and early evening, withVFR conditions
returning overnight.

Marine
The ridge of high pressure will remain south of the area
through Saturday, keeping light westerly winds in place
across the eastern gulf of mexico. Isolated to scattered
showers will be possible each day, mostly during the early
morning hours. Winds and seas will remain below headline
criteria, except in the vicinity of some of the stronger
thunderstorms.

Sunday through Tuesday, the ridge of high pressure will
lift north to a position across the florida peninsula and
the eastern gulf of mexico, with light winds becoming more
variable. Daily thunderstorms over the florida peninsula
could shift west into the gulf through the afternoon and
early evening, bringing locally gusty winds and rough seas.

Fire weather
Relative humidity will remain well above critical levels
through the forecast period.

Preliminary point temps pops
Tpa 89 79 90 78 30 10 30 10
fmy 91 77 92 75 30 10 40 20
gif 91 76 92 75 50 20 60 10
srq 88 79 89 78 30 20 20 10
bkv 90 75 91 74 40 10 30 10
spg 89 80 89 79 30 20 20 10

Tbw watches warnings advisories
Fl... Beach hazards statement through Saturday evening for
coastal sarasota.

Gulf waters... None.

Short term aviation marine fire weather... 18 fleming
mid term long term decision support... 13 oglesby


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CWBF1 - 8726724 - Clearwater Beach, FL 2 mi55 min WSW 12 G 14 83°F 88°F1014.4 hPa
FHPF1 - Fred Howard Park, FL 10 mi85 min WNW 9.9 G 12 83°F 1014.6 hPa
OPTF1 - 8726607 - Old Port Tampa, FL 18 mi49 min W 7 G 8.9 83°F 88°F1014.5 hPa
SAPF1 - 8726520 - St. Petersburg, FL 20 mi55 min W 6 G 7 82°F 88°F1014 hPa
CLBF1 20 mi85 min W 9.9 G 13 87°F 1013.2 hPa
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 21 mi61 min SW 2.9 G 4.1
MCYF1 22 mi49 min 89°F
MTBF1 27 mi49 min W 11 G 13 83°F 1014.2 hPa73°F
PMAF1 29 mi49 min 84°F 88°F1014.3 hPa
ARPF1 - APK - Aripeka, FL 30 mi145 min W 6 G 8 84°F 1013.1 hPa
42098 30 mi49 min 86°F2 ft

Wind History for Clearwater Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
St. Petersburg/Clearwater Airport, FL10 mi26 minWSW 410.00 miFair79°F75°F90%1014.5 hPa
Tampa, Tampa International Airport, FL16 mi26 minW 710.00 miMostly Cloudy82°F75°F79%1014.6 hPa
Albert Whitted Airport, FL19 mi26 minW 510.00 miFair84°F75°F77%1013.9 hPa
Macdill Air Force Base, Fl., FL19 mi83 minWSW 410.00 miFair82°F74°F79%1014.2 hPa
Tampa, Peter O Knight Airport, FL21 mi24 minN 010.00 miMostly Cloudy81°F75°F84%1014.9 hPa

Wind History from PIE (wind in knots)
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Last 24hrW6W9W6W8W10NW9NW9NW10NW8W7NW8NW9W7W6W4W4W5CalmS4SW3W4SW5W4SW4
1 day agoCalmCalmN5S10S8NE4S6W8W8NW10W10W7NW7NW5W3CalmNW3CalmW3SW4W5SW3SW3W5
2 days agoSE4S6SE3E7NE4NE5N7W8NW11E6W5NW7NW6NW6NW4NW3N4N3N3CalmCalmN4CalmCalm

Tide / Current Tables for Dunedin, St. Joseph Sound, Florida
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Dunedin
Click for Map
Fri -- 01:40 AM EDT     1.03 feet Low Tide
Fri -- 02:53 AM EDT     Moonset
Fri -- 06:35 AM EDT     Sunrise
Fri -- 08:19 AM EDT     2.43 feet High Tide
Fri -- 03:14 PM EDT     0.58 feet Low Tide
Fri -- 03:42 PM EDT     Moonrise
Fri -- 08:30 PM EDT     Sunset
Fri -- 09:28 PM EDT     1.96 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.21.111.21.41.722.32.42.42.21.81.410.70.60.60.91.21.51.81.91.91.8

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
Fri -- 02:52 AM EDT     Moonset
Fri -- 02:56 AM EDT     -0.66 knots Max Ebb
Fri -- 05:46 AM EDT     0.00 knots Slack
Fri -- 06:34 AM EDT     Sunrise
Fri -- 08:53 AM EDT     0.95 knots Max Flood
Fri -- 12:06 PM EDT     -0.00 knots Slack
Fri -- 03:41 PM EDT     Moonrise
Fri -- 04:04 PM EDT     -1.09 knots Max Ebb
Fri -- 07:20 PM EDT     0.00 knots Slack
Fri -- 08:29 PM EDT     Sunset
Fri -- 10:03 PM EDT     0.75 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.1-0.4-0.6-0.7-0.6-0.30.10.60.90.90.80.50.1-0.4-0.8-1-1.1-1-0.7-0.20.30.60.80.7

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 (7,2,3,4)
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Ground Weather Radar Station Tampa Bay Area, FL
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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.