Tuesday, September25, 2018 L-36.com


Marine Weather and Tides
Madeira Beach, FL

Version 3.4
What's New / NOTES
9/17/2018 XTide broke when 1and1 "upgraded" my server. It has been esculated. I am sorry for the problem.

Sunrise 7:20AMSunset 7:24PM Tuesday September 25, 2018 9:36 AM EDT (13:36 UTC) Moonrise 7:07PMMoonset 6:42AM Illumination 99% Phase: Full Moon; Moon at 15 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- 424 Am Edt Tue Sep 25 2018
Today..Southeast winds around 10 knots then becoming northeast around 5 knots late in the afternoon. Bay and inland waters a light chop. Scattered Thunderstorms.
Tonight..Southeast winds around 5 knots. Bay and inland waters smooth. Scattered Thunderstorms.
Wednesday..Southeast winds around 5 knots then becoming west late in the afternoon. Bay and inland waters smooth. Isolated Thunderstorms.
Wednesday night..North winds around 5 knots then becoming southeast after midnight. Bay and inland waters smooth. Isolated Thunderstorms.
Thursday..Southeast winds around 5 knots then becoming south early in the afternoon, then becoming northwest late in the afternoon. Bay and inland waters smooth. Isolated Thunderstorms.
Thursday night..Northeast winds around 5 knots then becoming east after midnight. Bay and inland waters smooth. Scattered Thunderstorms.
Friday..East winds around 10 knots. Bay and inland waters a light chop. Scattered Thunderstorms.
Friday night..East winds around 10 knots. Bay and inland waters a light chop. Isolated Thunderstorms.
Saturday..East winds around 10 knots. Bay and inland waters a light chop. Isolated Thunderstorms.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 424 Am Edt Tue Sep 25 2018
Synopsis..High pressure will remain stretched across the region through the week and into the weekend with east to southeasterly wind flow continuing. Winds and seas higher around scattered mainly late afternoon and evening showers and Thunderstorms.


7 Day Forecast for Marine Location Near Madeira Beach, FL
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location: 27.79, -82.78     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 251241
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
841 am edt Tue sep 25 2018

Update
Mostly clear skies and light east to southeast winds across the
region early this morning. Morning tbw sounding continues to
indicate plenty of moisture across the area with precipitable
water around 1.9 inches and low level east to southeast winds at
10 to 15 knots. Therefore, it looks like the sea breeze regime for
today will be a 7 which indicates scattered to numerous
convection developing and moving northwest with highest pops from
around the interstate 75 corridor westward. Already seeing a
couple of showers moving into highlands county, but most of the
showers and thunderstorms will develop after noon and continue
into the early evening. Overall the forecast looks on track and no
major changes planned for this morning.

Aviation
Some MVFR ceilings will be possible once daytime heating gets
underway during this morning, then scattered to numerous showers
and thunderstorms will cause MVFR local ifr conditions along with
gusty winds up to 30 knots this afternoon and early evening.

Otherwise, mainlyVFR conditions should prevail with east to
southeast winds at 5 to 10 knots, except shifting to onshore close
to the gulf coast this afternoon.

Marine
High pressure will continue to extend across the florida peninsula
and gulf of mexico through the period with rather benign
conditions expected each day. Main hazard will be scattered mainly
late afternoon and evening showers and thunderstorms which will be
capable of producing locally gusty winds and rough seas.

Prev discussion issued 358 am edt Tue sep 25 2018
short term (today-Wednesday)...

high pressure will ridge across the area at the surface and aloft
through the period as a trough moves west toward the carolinas
coast today and then lifts north into the low over canada through
Wednesday. This will keep generally light east to southeast winds
with an afternoon sea breeze near the coast each day. Scattered to
numerous showers and thunderstorms will also be possible each day
mainly in the later afternoon and evening hours coming in from
the east coast and also developing along the sea breeze, with the
highest chances near the coast as the two boundaries collide.

Temperatures will continue to be warm, with highs generally in the
lower 90s each day and lows overnight in the lower to mid 70s
inland and in the mid to upper 70s near the coast. Heat index
values will be in the 100 to 105 range each afternoon.

Long term (Wednesday night - Monday)...

broad upper level ridging near bermuda extends west-southwest
over florida and into the gulf of mexico to start out the long
term period. This ridge further builds by late Saturday into
Sunday becoming more west-east oriented and will extend from
bermuda to texas. On the surface, high pressure northeast of
bermuda ridges southwest over florida and into the gulf of mexico,
while a cold front extends south along the eastern seaboard, then
turning west- southwest in georgia and further extending west
through texas. The high pressure will keep any effects of this
front to the north of the area. Another area of high pressure
moves southeast behind this front and will be the dominant weather
feature for the weekend and into next week. A predominant
northeast through southeast wind flow can be expected through the
long term period. Daily showers and storms will form along the
east coast of florida by late morning, move westward over the
inland areas through the afternoon and evening hours with the
highest coverage over the west coast of florida between 18-00z
each day. Daytime highs will continue to be a few degrees above
average with highs in the low to mid 90's region wide with heat
indices reaching 100-105 degrees each day.

Fire weather... No concerns.

Preliminary point temps pops
Tpa 92 77 91 77 50 40 30 20
fmy 92 75 93 75 60 40 40 10
gif 92 75 94 75 50 30 50 10
srq 91 76 90 76 50 40 30 20
bkv 93 74 92 72 50 40 40 20
spg 91 79 91 79 50 40 20 20

Tbw watches warnings advisories
Fl... Beach hazards statement through Thursday evening for
coastal manatee-coastal sarasota-pinellas.

Beach hazards statement through Wednesday evening for
coastal lee.

Gulf waters... None.

Update aviation marine... 69 close
upper air... 42 norman
decision support... 11 mckaughan
prev discussion... 24 hubbard & 74 wynn


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CLBF1 6 mi102 min E 2.9 G 5.1 83°F 1017.7 hPa
SAPF1 - 8726520 - St. Petersburg, FL 8 mi54 min 82°F 86°F1018.8 hPa
MTBF1 13 mi48 min 80°F 1018.8 hPa75°F
OPTF1 - 8726607 - Old Port Tampa, FL 13 mi48 min 81°F 1018.8 hPa
CWBF1 - 8726724 - Clearwater Beach, FL 13 mi54 min 80°F 87°F1019 hPa
GCTF1 14 mi48 min 82°F 75°F
PMAF1 16 mi54 min 79°F 86°F1018.6 hPa
42098 16 mi36 min 86°F2 ft
MCYF1 21 mi48 min 88°F
FHPF1 - Fred Howard Park, FL 25 mi102 min E 5.1 G 6 77°F 1019.2 hPa
42013 - C10 - Navy-2 43 mi66 min E 12 G 16 85°F1018.3 hPa
ARPF1 - APK - Aripeka, FL 45 mi102 min Calm G 1.9 78°F 1018.9 hPa

Wind History for St. Petersburg, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Albert Whitted Airport, FL8 mi43 minESE 1110.00 miFair82°F77°F85%1018.2 hPa
St. Petersburg/Clearwater Airport, FL10 mi43 minE 710.00 miPartly Cloudy81°F75°F85%1018.7 hPa
Macdill Air Force Base, Fl., FL15 mi1.7 hrsESE 610.00 miFair78°F74°F89%1018.6 hPa
Tampa, Tampa International Airport, FL18 mi43 minVar 310.00 miA Few Clouds83°F75°F77%1019 hPa
Tampa, Peter O Knight Airport, FL20 mi41 minE 5 miOvercast0°F0°F%1019 hPa

Wind History from SPG (wind in knots)
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Last 24hrE9E8E7E5NE3CalmNE3E3CalmW8NW6N7N4E7E13E13E12E12E13E11E11E12E12E11
1 day agoE7E6E5E5NE3NE4E3CalmE18
G21
N5W6NW3CalmE14E13E11E14E12E11E11E11E10E11E12
2 days agoNE8E11E11NE11E10E6E8E8E12E12E10E13SE13E11E9E11E10E10E9E9E10E9E9E8

Tide / Current Tables for Johns Pass, Boca Ciega Bay, Florida
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Tampa Bay Entrance (Egmont Channel), Florida Current
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


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.
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Other links: Northern Pacific     Contential US     Full GOES-East
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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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.