Thursday, April25, 2019 L-36.com


Marine Weather and Tides
Harbor Bluffs, 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 6:55AMSunset 8:02PM Thursday April 25, 2019 7:44 PM EDT (23:44 UTC) Moonrise 12:18AMMoonset 11:00AM Illumination 61% 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- 254 Pm Edt Thu Apr 25 2019
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- 254 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 Harbor Bluffs, FL
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location: 27.91, -82.82     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 251855
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
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.

Aviation
25 18z tafs. Clouds continue to increase and slowly lower but have
opted to maintainVFR CIGS into the extended period. Approaching
front will provide vcts shra at 11z for northern terminals... Then
spread east and south. Limited br possible at lal and pgd 09-14z. Sw
winds become southerly aft 03-05z then SW and gusty aft 14z.

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 70 81 63 85 10 80 0 0
fmy 70 86 65 87 0 50 0 0
gif 67 83 61 86 10 70 0 0
srq 70 81 65 85 0 70 0 0
bkv 67 81 59 86 30 60 0 0
spg 70 78 65 86 10 80 0 0

Tbw watches warnings advisories
Fl... None.

Gulf waters... None.

Short term aviation marine fire weather... 09 rude
mid term long term decision support... 57 mcmichael


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CWBF1 - 8726724 - Clearwater Beach, FL 5 mi51 min S 12 G 14 75°F 77°F1013.8 hPa
CLBF1 14 mi111 min S 8 G 12 80°F 1013.7 hPa
OPTF1 - 8726607 - Old Port Tampa, FL 15 mi51 min S 9.9 G 11 76°F 76°F1014.2 hPa
SAPF1 - 8726520 - St. Petersburg, FL 15 mi51 min SSW 9.9 G 12 77°F 77°F1014.4 hPa
FHPF1 - Fred Howard Park, FL 17 mi111 min SSW 11 G 13 76°F 1014.9 hPa
GCTF1 19 mi51 min 76°F 1014.1 hPa68°F
MCYF1 21 mi51 min 80°F
MTBF1 21 mi51 min WSW 8.9 G 9.9 76°F 1014.3 hPa68°F
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 21 mi51 min S 5.1 G 8.9
TSHF1 - 8726667 - East Bay Causeway, FL 21 mi51 min S 7 G 13
42098 23 mi45 min 75°F2 ft
PMAF1 23 mi51 min 78°F 77°F1014 hPa
ARPF1 - APK - Aripeka, FL 37 mi111 min W 8 G 13 86°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 mi52 minSSW 1110.00 miFair77°F64°F64%1013.9 hPa
Albert Whitted Airport, FL14 mi52 minSW 710.00 miFair93°F66°F42%1013.5 hPa
Macdill Air Force Base, Fl., FL16 mi1.8 hrsSSW 1210.00 miMostly Cloudy78°F68°F72%1014.5 hPa
Tampa, Tampa International Airport, FL16 mi52 minS 910.00 miMostly Cloudy77°F68°F74%1014.1 hPa
Tampa, Peter O Knight Airport, FL20 mi50 minSW 810.00 miOvercast79°F68°F70%1014.2 hPa

Wind History from PIE (wind in knots)
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Last 24hrW6NW4CalmN5CalmNE4NE3E5E4SE6SE6SE5SE5SE53S6S10S13
G19
S11S11S12SW10SW10S11
1 day agoNW12N9N5N3N4E6E4SE5S3CalmCalmCalmCalmSE4E4NE8E9NE7N3N5N6NW12NW8W8
2 days agoNW11N7N6N5N7NE5NE5NE5E6E3CalmCalmCalmNE4NE4NE6N5NE4N4CalmNW12NW12NW8NW12

Tide / Current Tables for Indian Rocks Beach (inside), Florida
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Indian Rocks Beach (inside)
Click for Map
Thu -- 01:17 AM EDT     Moonrise
Thu -- 06:16 AM EDT     1.79 feet High Tide
Thu -- 06:57 AM EDT     Sunrise
Thu -- 10:23 AM EDT     1.41 feet Low Tide
Thu -- 12:00 PM EDT     Moonset
Thu -- 04:05 PM EDT     2.33 feet High Tide
Thu -- 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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0.20.30.611.41.71.81.81.61.51.41.41.61.822.22.32.32.11.81.51.20.90.6

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
Thu -- 01:16 AM EDT     Moonrise
Thu -- 03:31 AM EDT     0.00 knots Slack
Thu -- 06:48 AM EDT     0.81 knots Max Flood
Thu -- 06:55 AM EDT     Sunrise
Thu -- 10:30 AM EDT     -0.00 knots Slack
Thu -- 11:48 AM EDT     -0.15 knots Max Ebb
Thu -- 11:59 AM EDT     Moonset
Thu -- 01:15 PM EDT     0.00 knots Slack
Thu -- 04:35 PM EDT     0.70 knots Max Flood
Thu -- 07:08 PM EDT     -0.00 knots Slack
Thu -- 08:00 PM EDT     Sunset
Thu -- 11:13 PM EDT     -1.03 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1-0.9-0.6-0.20.20.60.80.80.70.40.1-0.1-0.2-00.20.40.70.70.40.1-0.3-0.7-0.9-1

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 (19,4,5,8)
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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.