Friday, April26, 2019 L-36.com


Marine Weather and Tides
Clearwater, 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 6:54AMSunset 8:03PM Friday April 26, 2019 3:40 AM EDT (07:40 UTC) Moonrise 1:06AMMoonset 11:52AM Illumination 57% Phase: Waning Gibbous; Moon at 21 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- 844 Pm Edt Thu Apr 25 2019
Rest of tonight..South winds around 10 knots. Bay and inland waters a light chop. A slight chance of Thunderstorms.
Friday..Southwest winds around 15 knots then becoming west in the afternoon. Bay and inland waters a moderate chop. A chance of showers and a slight chance of Thunderstorms.
Friday night..North winds around 10 knots. Bay and inland waters a light chop.
Saturday..Northeast winds around 10 knots 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 after midnight. 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 around 10 knots in the late evening and overnight. Bay and inland waters a light chop.
Monday..East winds around 10 knots. Bay and inland waters a light chop.
Monday night..East winds around 10 knots. Bay and inland waters a light chop.
Tuesday..East winds around 10 knots. Bay and inland waters a light chop.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 844 Pm Edt Thu Apr 25 2019
Synopsis..High pressure across the east gulf of mexico from the atlantic this afternoon slides east tonight as a cold front approaches from the west. This front reaches the coastal waters early Friday and moves onshore during the day then stalls over or offshore south florida during the weekend...as weak high pressure settles in along the northern gulf coast. This high tracks out over the atlantic and strengthens early in the week while stretching back across the gulf of mexico.


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


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 260534
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
134 am edt Fri apr 26 2019

Marginal risk of strong to severe storms today...

Aviation
Vfr conditions expected to prevail through around 15z. As the front
approaches the northern terminals at that time, some brief MVFR ifr
cigs and vsby restrictions will be possible at tpa pie lal srq, then
becomingVFR between 18-21z. Some brief MVFR ifr CIGS and vsby
restrictions will be possible for the southern terminals at
pgd fmy rsw a little later around 18z, then becomingVFR between 21-
00z. S-se wind at 8-10 knots expected overnight until around 12-15z,
then becoming gusty around 15 knots with gusts approaching 20-25
knots as the front moves through. Winds shift to the west-northwest
after 16z and decrease to around 10 knots. No other aviation impacts
expected.

Prev discussion issued 843 pm edt Thu apr 25 2019

Marginal risk of strong to severe storms Friday...

aviation...

mainlyVFR conditions tonight with LCL MVFR field fog in
typical prone areas. Friday broken line of convection for
brief flight restrictions and vcts shra with gusty SW winds.

Update...

forecast on track with warm and humid conditions tonight
with deepening southerly flow and increasing moisture. The
area remains in a marginal risk for strong to severe storms
as a broken line of convection moves through the area
tomorrow.

Prev discussion... Issued 255 pm edt Thu apr 25 2019
short term (this afternoon - Friday)...

mid level ridging along the eastern seaboard this afternoon slides
out over the atlantic tonight as a short wave trough with an
associated cold front near the lower mississippi valley propagates
eastward. The trough front track across the eastern gulf coast fl
panhandle later tonight and early Fri then over the fl peninsula
during the morning and afternoon.

Winds become southerly tonight and southwesterly ahead of the front
fri with increasing moisture... Models all indicate a band of pwat
values close to 2 inches in advance of the front. This moisture
along with lift from the upper trough front and some instability
from limited daytime heating will support showers and
thunderstorms... With scattered to numerous coverage. These begin
pushing into the nature coast shortly before sunrise and central
then southern counties between mid morning and mid afternoon. A
few storms could become strong to marginally severe. The greatest
threat will be isolated damaging wind gusts... Along with small
hail and lightning.

Mid term long term (Friday night - Thursday)...

a negatively tilted upper level trough will be lifting out to the
northeast up along the eastern seaboard Friday night with an
attendant cold front and band of showers and storms along and ahead
it exiting to the south of the forecast area. In the wake of theses
features a zonal flow aloft develops during the weekend followed by
upper level ridging building in over the gulf florida during the
early and middle part of next week in response to upper troughing
over the western u.S.. At the surface high pressure building in over
the southeastern states and northern gulf during the weekend will
shift east into the atlantic early next week and will extend back to
the west across the northern peninsula through Thursday with a low
level east-southeast wind flow expected across the forecast area. A
fairly dry and increasingly subsident air mass under the ridging
should keep overall rain chances out of the forecast with only
perhaps some isolated diurnal showers (pops 20 percent) possible
over central and southern interior zones along the sea breeze during
Wednesday and Thursday afternoons as low level moisture slowly
increases across the area. Near seasonal level temperatures on
Saturday will climb to above normal through the remainder of the
period with overnight lows warming to the mid and upper 60s with
even some lower 70s along the coast by early next week, with daytime
highs climbing into the upper 80s to around 90 each afternoon.

Marine... Prevailing winds seas 15 knots 4 feet or less as
a cold front moves in Fri bringing showers thunderstorms
with locally higher winds and seas and a shift in wind
direction. Week high pressure settles in along the northern
gulf for the weekend then slides out over the atlantic for
early next week... Strengthening as it reaches back to the
gulf.

Fire weather...

increasing moisture ahead of an approaching front will preclude
any low rh concerns for Fri but dry air works in Sat with the rh
at 35 percent or less... However winds will be light and not create
red flag conditions. Robust winds... 20 foot and transport... Will
result in high dispersion indices Friday. Moisture returns sun
with the minimum rh staying above critical levels.

Preliminary point temps pops
Tpa 81 63 85 66 80 0 0 0
fmy 86 65 87 67 50 0 0 0
gif 83 61 86 63 70 0 0 0
srq 81 65 85 66 70 0 0 0
bkv 81 59 86 61 60 0 0 0
spg 78 65 86 67 80 0 0 0

Tbw watches warnings advisories
Fl... None.

Gulf waters... None.

Aviation... 74 wynn
decision support... Jillson


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CWBF1 - 8726724 - Clearwater Beach, FL 2 mi46 min S 17 G 19 74°F 77°F1012.8 hPa
FHPF1 - Fred Howard Park, FL 13 mi106 min SSW 13 G 15 75°F 1014.3 hPa
OPTF1 - 8726607 - Old Port Tampa, FL 15 mi46 min SW 12 G 14 74°F 76°F1013.3 hPa
CLBF1 17 mi106 min SSW 8 G 11 78°F 1013.3 hPa
SAPF1 - 8726520 - St. Petersburg, FL 17 mi46 min SW 8 G 9.9 74°F 75°F1013.3 hPa
GCTF1 20 mi46 min 75°F 1013.1 hPa71°F
MCYF1 20 mi46 min 81°F
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 20 mi46 min SSW 5.1 G 8
TSHF1 - 8726667 - East Bay Causeway, FL 20 mi46 min SSE 7 G 9.9
MTBF1 24 mi46 min SW 13 G 16 74°F 1013.2 hPa70°F
PMAF1 26 mi46 min 74°F 76°F1013.1 hPa
42098 27 mi40 min 75°F2 ft
ARPF1 - APK - Aripeka, FL 33 mi106 min Calm G 1.9 78°F 1014 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 mi47 minSSW 810.00 miFair72°F69°F91%1013 hPa
Tampa, Tampa International Airport, FL14 mi47 minSSW 910.00 miFair73°F69°F87%1013.2 hPa
Albert Whitted Airport, FL16 mi47 minSW 910.00 miFair74°F70°F88%1012.5 hPa
Macdill Air Force Base, Fl., FL17 mi44 minSSW 1010.00 miA Few Clouds74°F69°F88%1013.5 hPa
Tampa, Peter O Knight Airport, FL19 mi45 minSW 410.00 miOvercast0°F0°F%1013.5 hPa
Tampa, Vandenberg Airport, FL24 mi45 minN 010.00 miFair68°F66°F94%1013.5 hPa

Wind History from PIE (wind in knots)
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Last 24hrE4SE6SE6SE5SE5SE53S6S10S13
G19
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1 day agoS3CalmCalmCalmCalmSE4E4NE8E9NE7N3N5N6NW12NW8W8W6NW4CalmN5CalmNE4NE3E5
2 days agoE6E3CalmCalmCalmNE4NE4NE6N5NE4N4CalmNW12NW12NW8NW12NW12N9N5N3N4E6E4SE5

Tide / Current Tables for Clearwater, Florida
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Clearwater
Click for Map
Fri -- 12:05 AM EDT     0.30 feet Low Tide
Fri -- 02:05 AM EDT     Moonrise
Fri -- 06:53 AM EDT     1.59 feet High Tide
Fri -- 06:55 AM EDT     Sunrise
Fri -- 10:39 AM EDT     1.19 feet Low Tide
Fri -- 12:52 PM EDT     Moonset
Fri -- 03:59 PM EDT     1.91 feet High Tide
Fri -- 06:19 PM EDT     Last Quarter
Fri -- 08:02 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.40.60.91.21.41.61.61.51.31.21.21.31.51.71.91.91.91.81.61.41.210.7

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 -- 02:04 AM EDT     Moonrise
Fri -- 04:40 AM EDT     0.00 knots Slack
Fri -- 06:54 AM EDT     Sunrise
Fri -- 08:04 AM EDT     0.80 knots Max Flood
Fri -- 11:41 AM EDT     -0.00 knots Slack
Fri -- 12:51 PM EDT     Moonset
Fri -- 01:01 PM EDT     -0.14 knots Max Ebb
Fri -- 02:32 PM EDT     0.00 knots Slack
Fri -- 05:37 PM EDT     0.53 knots Max Flood
Fri -- 06:19 PM EDT     Last Quarter
Fri -- 08:01 PM EDT     Sunset
Fri -- 08:09 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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-1-0.9-0.8-0.6-0.30.10.50.70.80.70.50.2-0.1-0.1-0.10.10.30.50.50.30-0.3-0.5-0.8

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.
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Wind Forecast for Tampa Bay, FL (3,6,7,8)
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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.