Thursday, March21, 2019 L-36.com


Marine Weather and Tides
South Pasadena, 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 7:32AMSunset 7:43PM Thursday March 21, 2019 6:09 PM EDT (22:09 UTC) Moonrise 7:38PMMoonset 7:12AM Illumination 99% 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- 252 Pm Edt Thu Mar 21 2019
Tonight..Northwest winds around 15 knots then becoming north 5 to 10 knots after midnight. Bay and inland waters a moderate chop.
Friday..Northwest winds around 10 knots. Bay and inland waters a light chop.
Friday night..North winds around 10 knots then becoming northeast around 5 knots toward morning. Bay and inland waters a light chop.
Saturday..Northeast winds around 10 knots diminishing to around 5 knots early in the afternoon, then becoming northwest around 5 knots late in the afternoon. Bay and inland waters a light chop.
Saturday night..North winds around 5 knots then becoming east around 10 knots in the late evening and overnight. Bay and inland waters a light chop.
Sunday..Southeast winds around 10 knots then becoming west around 5 knots late in the afternoon. Bay and inland waters a light chop.
Sunday night..North winds around 5 knots then becoming east in the late evening and overnight. Bay and inland waters smooth.
Monday..Southeast winds around 5 knots then becoming west late in the afternoon. Bay and inland waters smooth.
Monday night..West winds around 5 knots. Bay and inland waters smooth.
Tuesday..Northwest winds around 10 knots. Bay and inland waters a light chop.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 252 Pm Edt Thu Mar 21 2019
Synopsis..High pressure builds into the western gulf of mexico tonight with a tightening gradient across the waters providing some robust winds tonight and early Friday. This high pressure begin to move east Friday and reaches atlantic waters Monday...with winds diminishing as they veer.


7 Day Forecast for Marine Location Near South Pasadena, FL
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location: 27.75, -82.75     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 211812
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
212 pm edt Thu mar 21 2019

Discussion
An upper level long wave trough... With a couple of short wave
troughs lows rotating through... Across the eastern u.S. Through
tonight pivots offshore Fri as an upper level ridge from the western
gulf of mexico to the canadian prairies shifts east - stretching
along the mississippi valley by late fri. Surface high pressure
located in the central plains and mid-mississippi valley sprawls
down into the gulf of mexico and is reinforced from canada fri.

The week comes to an end with a dry and cool northwesterly low level
flow. Skies mostly clear to clear with no rainfall or fog expected.

Temperatures run on the cool side of normal.

For Sat through next thu: during the weekend deep layer ridging
slides across the area then exits to the atlantic mon. A long wave
trough with an associated cold front swings into the gulf Mon and
crosses fl tue. Deep ridging builds back in from the west for wed-
thu. Dry conditions prevail for the most part although the front
will bring some showers. Temperatures slowly warm to near normal
but dip as high pressure moves in behind the front.

Aviation
21 18z TAF cycle.VFR. Ocnl few CU sc. Northwesterly winds... Robust
at times

Marine
Winds increase late this afternoon and tonight... Reaching caution
speeds across some of the marine zones. A high pressure center tracks
by north of the waters fri-mon with winds diminishing and veering.

Fire weather
Drier air works in through sat... Perhaps at or below 35 percent.

While some erc values are high the winds remain below the threshold
for red flag warning for the most part. The exception is this
afternoon in hernando county where winds increased to 15 knots...

a warning will be in place through this evening. For Sun and
later veering winds will provide enough moisture... Aided by a
front tue... To preclude any low rh concerns.

Preliminary point temps pops
Tpa 55 73 53 76 0 0 0 0
fmy 53 76 52 79 0 0 0 0
gif 52 76 50 79 0 0 0 0
srq 54 71 50 76 0 0 0 0
bkv 45 73 42 78 0 0 0 0
spg 59 72 59 75 0 0 0 0

Tbw watches warnings advisories
Fl... Red flag warning until 7 pm edt this evening for coastal
hernando-inland hernando.

Gulf waters... None.

09 rkr


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CLBF1 4 mi76 min WNW 8 G 13 71°F 1014.6 hPa
SAPF1 - 8726520 - St. Petersburg, FL 7 mi46 min WNW 12 G 16 68°F 71°F1015.6 hPa
MTBF1 10 mi40 min NW 16 G 20 66°F 1015.6 hPa49°F
GCTF1 12 mi40 min 68°F 1015.1 hPa47°F
OPTF1 - 8726607 - Old Port Tampa, FL 13 mi40 min NW 14 G 17 67°F 70°F1015.4 hPa
PMAF1 13 mi40 min 67°F 72°F1015.4 hPa
42098 15 mi40 min 69°F3 ft
CWBF1 - 8726724 - Clearwater Beach, FL 16 mi46 min W 12 G 15 66°F 69°F1015.5 hPa
MCYF1 21 mi40 min 73°F
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 21 mi130 min W 7 G 13
TSHF1 - 8726667 - East Bay Causeway, FL 21 mi40 min SW 11 G 14
FHPF1 - Fred Howard Park, FL 28 mi76 min WNW 9.9 G 14 67°F 1016 hPa
42013 - C10 - Navy-2 41 mi100 min NW 14 G 18 66°F 70°F1016.3 hPa
ARPF1 - APK - Aripeka, FL 47 mi136 min WNW 11 G 15 71°F 1015.6 hPa
VENF1 - Venice, FL 49 mi70 min NW 17 G 20 67°F 71°F1015.5 hPa (-1.4)49°F

Wind History for St. Petersburg, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Albert Whitted Airport, FL7 mi17 minWNW 9 G 1710.00 miFair69°F48°F49%1014.6 hPa
St. Petersburg/Clearwater Airport, FL12 mi17 minWNW 1210.00 miFair68°F48°F49%1015.3 hPa
Macdill Air Force Base, Fl., FL14 mi4.2 hrsNNW 11 G 1710.00 miFair70°F46°F43%1017.2 hPa
Tampa, Tampa International Airport, FL19 mi17 minW 1010.00 miFair70°F48°F46%1015.2 hPa
Tampa, Peter O Knight Airport, FL20 mi35 minWNW 9 G 1510.00 miOvercast70°F50°F50%1015.2 hPa

Wind History from SPG (wind in knots)
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Last 24hrN10N9N9N7N8N6N6N5N5N6N6N7N7NW7NW8N11NW6NW5NW8NW12NW11
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1 day agoNE10NE10N8NE18NE20NE16NE16NE22NE20
G23
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NE17NE18NE13NE12NE14NE11N8N8NE11NE7NE6E6
2 days agoE14E13NE18NE18NE16NE15N13NE18NE17NE17NE13NE15N5NE16NE14NE15NE17NE12NE13NE10E12
G17
NE10NE9NE10

Tide / Current Tables for St. Petersburg Beach Causeway, Florida
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St. Petersburg Beach Causeway
Click for Map
Thu -- 01:27 AM EDT     1.89 feet High Tide
Thu -- 07:34 AM EDT     Sunrise
Thu -- 08:11 AM EDT     Moonset
Thu -- 08:37 AM EDT     -0.09 feet Low Tide
Thu -- 02:09 PM EDT     1.59 feet High Tide
Thu -- 07:42 PM EDT     Sunset
Thu -- 08:37 PM EDT     Moonrise
Thu -- 08:46 PM EDT     0.12 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.61.91.91.71.410.60.2-0-0.10.20.61.11.41.61.51.310.70.40.20.10.30.7

Tide / Current Tables for Tampa Bay Entrance (Egmont Channel), Florida Current
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Tampa Bay Entrance (Egmont Channel)
Click for Map
Thu -- 12:22 AM EDT     1.76 knots Max Flood
Thu -- 03:16 AM EDT     -0.00 knots Slack
Thu -- 06:25 AM EDT     -1.80 knots Max Ebb
Thu -- 07:34 AM EDT     Sunrise
Thu -- 08:11 AM EDT     Moonset
Thu -- 09:46 AM EDT     0.00 knots Slack
Thu -- 12:50 PM EDT     1.81 knots Max Flood
Thu -- 03:49 PM EDT     -0.00 knots Slack
Thu -- 06:44 PM EDT     -1.54 knots Max Ebb
Thu -- 07:42 PM EDT     Sunset
Thu -- 08:37 PM EDT     Moonrise
Thu -- 09:57 PM EDT     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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1.71.71.10.3-0.7-1.4-1.8-1.7-1.3-0.70.211.61.81.50.7-0.2-1-1.4-1.5-1.3-0.700.8

Weather Map and Satellite Images
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wmap_A
GOES Local Image of Southeast    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 (18,4,5,8)
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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.