Friday, March24, 2017 L-36.com


Marine Weather and Tides
Clearwater, FL

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 7:27AMSunset 7:46PM Friday March 24, 2017 10:08 AM EDT (14:08 UTC) Moonrise 4:08AMMoonset 3:30PM Illumination 10% Phase: Waning Crescent; Moon at 27 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- 943 Am Edt Fri Mar 24 2017
This afternoon..East winds around 15 knots. Bay and inland waters a moderate chop.
Tonight..East winds around 15 knots diminishing to 5 to 10 knots after midnight. Bay and inland waters a moderate chop.
Saturday..East winds around 10 knots then becoming southeast in the afternoon. Bay and inland waters a light chop.
Saturday night..East winds around 10 knots. Bay and inland waters a light chop.
Sunday..East winds around 10 knots then becoming southwest around 5 knots in the afternoon. Bay and inland waters a light chop.
Sunday night..Northwest winds around 5 knots then becoming east around 10 knots after midnight. Bay and inland waters a light chop.
Monday..Southeast winds around 5 knots then becoming southwest in the afternoon. Bay and inland waters smooth.
Monday night..Northwest winds around 5 knots then becoming east after midnight. Bay and inland waters smooth.
Tuesday..Southeast winds around 5 knots then becoming southwest in the afternoon. Bay and inland waters smooth.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 943 Am Edt Fri Mar 24 2017
Synopsis..Strong high pressure off the mid-atlantic coast ridges southwestward across the waters...with some robust winds offshore that decrease in the afternoon. The high moves east over the atlantic through the weekend...with a relaxing gradient that allows winds to diminish and veer.

7 Day Forecast for Marine Location Near Clearwater, FL
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location: 27.97, -82.8     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 241209
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
809 am edt Fri mar 24 2017

Aviation
Vfr conditions will prevail at all terminals for next 24 hours.

Easterly winds will increase to between 10 and 15 knots with gusts
to around 25 knots later this morning through late afternoon, then
diminish some this evening. No other aviation impacts are
expected at this time.

Prev discussion /issued 330 am edt Fri mar 24 2017/
short term (today - Saturday)...

an amplified upper level pattern continues over the conus. A closed
upper low sits over the oklahoma panhandle, while upper level
ridging extends from the gulf of mexico northeastward through the
ohio river valley. Another area of upper troughing sits over the
bahamas and cuba. This pattern shifts east through the end of the
week and into the weekend. On the surface, strong high pressure sits
just off the mid-atlantic coast and ridges southwest over florida.

This will keep an east-northeast wind flow and rain-free conditions
over florida through the end of the week and into the weekend.

Another area of high pressure develops in the northeast gulf of
mexico by late Saturday evening and will keep benign weather
conditions over the area. Temperatures will remain a few degrees
above normal with daytime highs in the upper 70s to low 80s and
overnight lows in the mid 50s to low 60s.

Long term (Sunday through next Thursday)...

a rather benign weather pattern in terms of sensible weather appears
ahead for the duration of the long term forecast period. Closed low
over the middle ms valley, with southern trough extension down to
the northern gulf coast will slowly approach later Saturday into
Saturday night. However... The southern extent of this energy is
shown by all global guidance to rapidly shear/stretch out as it
reaches the eastern gulf of mexico. Weakening support for synoptic
lift... With meager height falls at best... Along with plenty of
residual dry air... Suggests we see little more than an increase in
mid/high clouds by Sunday morning. Can a few light showers still be
left to move ashore with this feature? Sure... Can not completely
rule it out, but chances/coverage/impact appear low enough to leave
rain mention out of the forecast at this time. With whatever is left
of the trough axis passing by toward midday... The peak of diurnal
heating and sea-breeze development will be beneath increasing nva,
keeping chances for isolated showers very low.

We repeat the entire pattern during the early portion of the week.

With the fast moving pattern... Upper ridging again builds over the
peninsula for Monday... Followed quickly by another approaching
shortwave along the northern gulf coast Monday night. This shortwave
looks to take most of its large scale forcing to the north of our
region... And any forcing that does exert influence this far south
will again be fighting considerable dry air. Once again... Perhaps an
isolated and brief shower, but coverage will stay very low and best
to keep rain mention of the forecast.

Upper ridging returns by Tuesday night... And amplifies further
Wednesday and Wednesday night in response to yet another significant
trough/strong height falls over the southern plains/lower ms valley.

Following its predecessors... This system will begin to shear off to
the northeast before reaching our forecast area. Since we are now
talking about 7 days out... Details are difficult to forecast. Some
indication in the global ensembles that this system may have more
promise for shower coverage Thursday night or Friday (especially
north of the i-4 corridor). Plenty of time to watch and adjust the
forecast.

Temperatures for the majority of the long term period will feature
seasonable numbers. Low temperatures in the upper 50s and 60s. High
temperatures in the 80s inland and upper 70s to near 80 at the
beaches. Sea-breezes most days will drop temps back to the middle
70s at the beaches for the middle/late afternoon hours.

Marine... Strong high pressure off the mid-atlantic coast
ridges southwest over the area. Gusty east-northeast winds
will continue through the early morning and a small craft
advisory remains in effect until 5 am for the outer coastal
waters from bonita beach to suwannee river. Winds will
gradually diminish by the afternoon and will remain around
10-15 knots through the evening. The high shifts southeast
by Sunday which will allow for the winds to veer to the
southeast and will still remain around 10-15 knots. Winds
will be variable at 5-10 knots for the start of next week
through mid week as another area of high pressure sets up in
the eastern half of the gulf of mexico.

Fire weather...

relative humidity values will remain above any critical fire weather
threshold through the period as high pressure advects abundant
moisture over the area. Winds are expected to remain below 15 mph as
well and no other fire weather concerns are anticipated through the
weekend and into next week.

Preliminary point temps/pops
Tpa 80 63 81 63 / 0 0 10 10
fmy 83 62 83 61 / 10 0 20 10
gif 80 60 82 61 / 10 10 10 0
srq 81 61 80 62 / 0 0 10 10
bkv 80 57 83 58 / 0 0 10 10
spg 78 65 79 65 / 0 0 10 10

Tbw watches/warnings/advisories
Fl... None.

Gulf waters... None.

Aviation... 69/close
prev discussion... 74/wynn & 14/mroczka


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FHPF1 - Fred Howard Park, FL 13 mi134 min ENE 7 G 8.9 61°F 1026.6 hPa
OPTF1 - 8726607 - Old Port Tampa, FL 15 mi50 min E 8.9 G 15 67°F 70°F1026.9 hPa
SAPF1 - 8726520 - St. Petersburg, FL 17 mi50 min E 11 G 14 67°F 69°F1026.3 hPa
CLBF1 17 mi74 min ENE 6 G 15 68°F 1025.8 hPa
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 20 mi56 min ENE 8 G 11
MCYF1 20 mi50 min 70°F
TSHF1 - 8726667 - East Bay Causeway, FL 20 mi50 min ENE 8 G 13
MTBF1 24 mi50 min E 14 G 17 65°F 1027 hPa58°F
PMAF1 26 mi50 min 66°F 69°F1025.8 hPa
42098 27 mi38 min 68°F3 ft
ARPF1 - APK - Aripeka, FL 33 mi134 min E 5.1 G 8.9 60°F 1026.3 hPa

Wind History for Clearwater Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
St. Petersburg/Clearwater Airport, FL7 mi15 minE 1010.00 miFair70°F55°F61%1026.9 hPa
Tampa, Tampa International Airport, FL14 mi15 minENE 9 G 1810.00 miFair70°F55°F59%1027.3 hPa
St. Petersburg Whitted Airport, FL16 mi15 minE 1610.00 miFair67°F59°F76%1026.8 hPa
Macdill Air Force Base, Fl., FL17 mi10 minE 1410.00 miFair70°F58°F68%1027 hPa
Tampa, Peter O Knight Airport, FL19 mi13 minENE 1110.00 miMostly Cloudy73°F59°F61%1027.1 hPa
Tampa, Vandenberg Airport, FL24 mi13 minE 910.00 miFair72°F55°F57%1027.8 hPa

Wind History from PIE (wind in knots)
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Last 24hrNE8E8E12E12E7E7E11E17
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1 day agoNW12NW14NW10NW10NW10W11NW10W8W11W8W6W6W7N6NE5N4N4NE5N4N5NE5NE5NE8E7
2 days ago5S7W76SW9
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W8W10W8W6W7W5W5W4W6NW7NW5NW6W4W6W5W3W6NW10

Tide / Current Tables for Clearwater, Florida
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Clearwater
Click for Map
Fri -- 04:47 AM EDT     -0.03 feet Low Tide
Fri -- 05:08 AM EDT     Moonrise
Fri -- 07:30 AM EDT     Sunrise
Fri -- 11:05 AM EDT     2.08 feet High Tide
Fri -- 04:30 PM EDT     Moonset
Fri -- 04:58 PM EDT     0.64 feet Low Tide
Fri -- 07:44 PM EDT     Sunset
Fri -- 10:39 PM EDT     2.08 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.51.10.70.30-00.10.51.11.61.92.121.71.310.70.60.811.41.822.1

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 -- 12:36 AM EDT     -0.00 knots Slack
Fri -- 05:07 AM EDT     Moonrise
Fri -- 05:25 AM EDT     -1.09 knots Max Ebb
Fri -- 07:29 AM EDT     Sunrise
Fri -- 08:44 AM EDT     0.00 knots Slack
Fri -- 11:49 AM EDT     1.11 knots Max Flood
Fri -- 03:08 PM EDT     -0.00 knots Slack
Fri -- 04:29 PM EDT     Moonset
Fri -- 05:48 PM EDT     -0.68 knots Max Ebb
Fri -- 07:43 PM EDT     Sunset
Fri -- 08:16 PM EDT     0.00 knots Slack
Fri -- 10:50 PM EDT     0.83 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.2-0.1-0.5-0.8-1-1.1-1.1-0.9-0.40.20.711.10.90.50.1-0.4-0.6-0.7-0.5-0.10.40.70.8

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 (10,2,3,4)
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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.