Wednesday, February20, 2019 L-36.com


Marine Weather and Tides
Treasure Island, FL

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:02AMSunset 6:26PM Wednesday February 20, 2019 4:57 PM EST (21:57 UTC) Moonrise 7:50PMMoonset 7:58AM Illumination 98% Phase: Waning Gibbous; Moon at 16 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- 235 Pm Est Wed Feb 20 2019
Tonight..Southeast winds around 5 knots. Bay and inland waters smooth.
Thursday..Southeast winds around 5 knots then becoming southwest around 10 knots in the afternoon. Bay and inland waters a light chop.
Thursday night..Southwest winds around 5 knots then becoming east in the late evening and overnight. Bay and inland waters smooth.
Friday..Southeast winds around 5 knots then becoming southwest late in the afternoon. Bay and inland waters smooth.
Friday night..West winds around 5 knots then becoming north late in the evening, then becoming east around 5 knots after midnight. Bay and inland waters smooth.
Saturday..South winds around 10 knots. Bay and inland waters a light chop.
Saturday night..South winds around 10 knots. Bay and inland waters a light chop.
Sunday..Southwest winds around 10 knots then becoming west late in the afternoon. Bay and inland waters a light chop.
Sunday night..North winds around 10 knots. Bay and inland waters a light chop.
Monday..Northeast winds around 10 knots. Bay and inland waters a light chop.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 235 Pm Est Wed Feb 20 2019
Synopsis..Atlantic high pressure begins to build in across florida to the gulf of mexico today and settles in with a ridge axis along latitude 30 north for most of the weekend. This ridge shifts south late Sunday as a cold front moves into central florida and becomes stationary.


7 Day Forecast for Marine Location Near Treasure Island, FL
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location: 27.77, -82.78     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 201933
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
233 pm est Wed feb 20 2019

Discussion
Aloft - a broad low over the northern plains and the upper midwest
dampens out as it tracks across the great lakes tonight and into
quebec by late thu. A ridge anchored east of the bahamas and north of
hispaniola sprawls above much of the gulf region. Surface - a warm
front exited north-central fl this morning as atlantic high
pressure began ridging east across the gulf... With an axis along
latitude 30 north.

A generally stable and warm air mass continues for the next couple
of days. The highs this afternoon are expected to come close to
record values for this date... See climate section below... And with
similar readings. Moisture is limited... Model pwat values run 1.2 to
1.4 inches... Which along with subsidence will keep rain chances
low at 20 to no more than 40 percent. Scattered showers have been
drifting over inland areas early this afternoon and will continue
through the evening. Theses showers return for thu.

During Fri through next Wed - a long wave trough from central canada
to northern baja california swings northeast as it forms into a
closed low over the mid-mississippi valley that exits to the canadian
maritimes by the middle of next week. This will shift the ridge over
the gulf from the bahamas southward. Meanwhile at the surface...

high pressure initially across the gulf and fl slips off to the east
as canadian high pressure settles into the central u.S. Late in the
weekend then shifts to the eastern seaboard wed. The canadian high
propels a cold front into north or northeast fl late Sun that stalls
for the early portion of next week. Warm conditions with isolated to
scattered showers continue into the weekend. Then the front will
bring increasing clouds and rain chances for late Sun and early next
week. While the front is expected to initially stall it S behavior
is not entirely certain... Impacting the forecast.

Aviation
20 18z TAF cycle. PrevailingVFR with ocnl bkn 4-6k ft clouds.

Clouds begin clearing aft 01-02z with some low st aft 08z. For now
have opted to keep just few-sct in the tafs. And have added
limited br at fog favoring lal and pgd. Main TAF period ends with
bkn035-050. Gusty s-se winds diminish then slowly back over night.

Marine
High pressure across the waters will keep winds and seas benign into
the weekend. Then a cold front moving in late Sun could bring
increasing and shifting winds along with higher seas for early in
the week.

Fire weather
Adequate moisture going into the weekend will preclude any low rh
concerns and will support some showers and late night fog. Locally
robust winds Thu will result in high dispersions. A front late
sun will provide additional moisture with increasing rain chances
and clouds.

Climate
Record highs for today...

brooksville (bkv) - 87 2018
tampa (tpa) - 89 2018
st pete clearwater (pie) - 88 2018
plant city (pcm) - 89 2018
lakeland (lal) - 90 1988
winter haven (gif) - 88 2018
punta gorda (pgd) - 90 2018
fort myers (fmy) - 89 1989
fort myers (rsw) - 86 2018
sarasota (srq) - 90 2018

Preliminary point temps pops
Tpa 68 83 69 83 0 10 10 10
fmy 67 86 67 85 0 20 10 10
gif 66 86 66 85 40 10 20 10
srq 67 80 68 78 0 10 10 0
bkv 63 85 66 85 0 20 20 10
spg 68 82 69 81 0 10 10 0

Tbw watches warnings advisories
Fl... None.

Gulf waters... None.

09 rkr


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CLBF1 6 mi64 min S 8 G 13 84°F 1016.3 hPa
SAPF1 - 8726520 - St. Petersburg, FL 8 mi46 min SSW 14 G 18 78°F 74°F1017.4 hPa
MTBF1 12 mi46 min SSW 14 G 16 77°F 1017.2 hPa66°F
OPTF1 - 8726607 - Old Port Tampa, FL 13 mi40 min SSW 13 G 16 75°F 74°F1017.3 hPa
GCTF1 14 mi46 min 77°F 68°F
42098 15 mi88 min 67°F3 ft
CWBF1 - 8726724 - Clearwater Beach, FL 15 mi46 min S 16 G 20 76°F 71°F1017.4 hPa
PMAF1 15 mi46 min 82°F 73°F1017.2 hPa
MCYF1 21 mi46 min 75°F
TSHF1 - 8726667 - East Bay Causeway, FL 22 mi46 min S 11 G 16
FHPF1 - Fred Howard Park, FL 26 mi124 min SW 15 G 17 76°F 1017.9 hPa
42013 - C10 - Navy-2 42 mi88 min SSE 12 G 16 71°F 69°F1017.5 hPa
ARPF1 - APK - Aripeka, FL 46 mi124 min W 11 G 15 86°F 1017.2 hPa

Wind History for St. Petersburg, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Albert Whitted Airport, FL8 mi65 minSSW 13 G 2310.00 miMostly Cloudy80°F66°F64%1016.4 hPa
St. Petersburg/Clearwater Airport, FL11 mi65 minSSW 20 G 2610.00 miMostly Cloudy and Breezy82°F66°F58%1017 hPa
Macdill Air Force Base, Fl., FL15 mi62 minSSW 1610.00 miMostly Cloudy78°F68°F74%1017.2 hPa
Tampa, Tampa International Airport, FL19 mi65 minS 13 G 2110.00 miMostly Cloudy81°F69°F67%1017.1 hPa
Tampa, Peter O Knight Airport, FL20 mi63 minSW 10 G 1510.00 miOvercast81°F71°F74%1017.3 hPa

Wind History from SPG (wind in knots)
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Last 24hrSE3W7SW5CalmCalmCalmSE7SE8SE11SE8E7E8SE6SE14SE9SE8SE9S12S12S10S14S14
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1 day agoSW9SW8SW6SW4SW3S4CalmNE3NE7NE8NE10NE11NE11NE11NE11E13E8E8E5NE4N3NE43E3
2 days agoS12
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--S9S12----------------------S4S4CalmS8S8SW9SW9SW11
G17
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Tide / Current Tables for Johns Pass, Florida
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Johns Pass
Click for Map
Wed -- 06:56 AM EST     -0.65 feet Low Tide
Wed -- 07:04 AM EST     Sunrise
Wed -- 07:58 AM EST     Moonset
Wed -- 01:15 PM EST     1.31 feet High Tide
Wed -- 06:25 PM EST     Sunset
Wed -- 06:27 PM EST     0.47 feet Low Tide
Wed -- 07:49 PM EST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.11.91.510.4-0.2-0.5-0.7-0.5-0.10.40.81.21.31.31.10.90.60.50.50.71.11.51.8

Tide / Current Tables for Tampa Bay Entrance (Egmont Channel), Florida Current
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Tampa Bay Entrance (Egmont Channel)
Click for Map
Wed -- 02:06 AM EST     -0.00 knots Slack
Wed -- 05:41 AM EST     -2.30 knots Max Ebb
Wed -- 07:04 AM EST     Sunrise
Wed -- 07:57 AM EST     Moonset
Wed -- 09:28 AM EST     0.00 knots Slack
Wed -- 12:32 PM EST     1.89 knots Max Flood
Wed -- 03:53 PM EST     -0.00 knots Slack
Wed -- 06:14 PM EST     -0.93 knots Max Ebb
Wed -- 06:25 PM EST     Sunset
Wed -- 07:49 PM EST     Moonrise
Wed -- 08:48 PM EST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.510.1-0.9-1.7-2.2-2.3-2-1.3-0.50.51.31.81.81.40.7-0.1-0.7-0.9-0.8-0.50.10.81.3

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.
Link to Loop

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