Saturday, June24, 2017 L-36.com


Marine Weather and Tides
Kenneth City, FL

Version 3.4
What's New / NOTES
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
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.

Sunrise 6:35AMSunset 8:31PM Saturday June 24, 2017 6:13 AM EDT (10:13 UTC) Moonrise 6:12AMMoonset 8:11PM Illumination 0% Phase: New Moon; Moon at 0 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
    EDIT      (on/off)   Help
GMZ830 Tampa Bay Waters- 342 Am Edt Sat Jun 24 2017
Today..East winds around 5 knots then becoming south early in the afternoon, then becoming southwest around 10 knots late in the afternoon. Bay and inland waters a light chop. Scattered Thunderstorms in the afternoon.
Tonight..West winds around 10 knots then becoming south around 5 knots late in the evening, then becoming east after midnight. Bay and inland waters a light chop. Isolated Thunderstorms in the evening.
Sunday..Southeast winds around 5 knots then becoming southwest early in the afternoon, then becoming west around 10 knots late in the afternoon. Bay and inland waters a light chop. Scattered Thunderstorms.
Sunday night..Northwest winds around 10 knots then becoming northeast around 5 knots after midnight. Bay and inland waters a light chop. Scattered Thunderstorms in the evening, then isolated Thunderstorms after midnight.
Monday..East winds around 5 knots then becoming south late in the morning, then becoming west around 10 knots in the afternoon. Bay and inland waters a light chop. Scattered Thunderstorms.
Monday night..North winds around 10 knots then becoming east around 5 knots after midnight. Bay and inland waters a light chop. Scattered Thunderstorms in the evening, then isolated Thunderstorms after midnight.
Tuesday..Northeast winds around 5 knots then becoming northwest in the late morning and afternoon. Bay and inland waters smooth. Isolated Thunderstorms in the morning, then scattered Thunderstorms in the afternoon.
Tuesday 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. Numerous Thunderstorms in the evening.
Wednesday..East winds around 10 knots. Bay and inland waters a light chop. Isolated Thunderstorms in the morning, then numerous Thunderstorms in the afternoon.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 342 Am Edt Sat Jun 24 2017
Synopsis.. No major marine hazards are expected through early next week. High pressure will continue to dominate our area producing a south to southeast flow with winds taking on a southwest and west component during the afternoon/evening hours as the sea breeze forms and pushes inland. While greatest rain chances will remain inland, typical summertime boating precautions should still be exercised as any Thunderstorm can produce gusty winds and locally higher waves. Early into the middle of next work week, a cold front will push south and stall across our area shifting winds to more of a northeasterly direction.

7 Day Forecast for Marine Location Near Kenneth City, FL
   Hourly   EDIT   Help
location: 27.8, -82.72     debug


Area Discussion for - Tampa Bay, FL
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus62 ktbw 240742
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
342 am edt Sat jun 24 2017

Short term (today - Sunday night)
Still seeing a few lingering showers around tampa bay this
morning with this activity likely to continue slowly pushing
northwest for a few more hours this morning. The surface
ridge axis placement will keep a light flow in place over
central fl with winds southeasterly across our southern
zones with a more southwesterly flow expected across the
nature coast. This SW flow combined with ample atmospheric
moisture should support some morning showers moving into the
areas north of tampa bay in the mid to late morning.

Elsewhere, terrestrial heating will allow a seabreeze to
develop by early afternoon turning winds onshore near the
coast. Sufficient moisture will be in place across the area
to support shra TSTM development with afternoon seabreeze
collision. Looks like the greatest coverage will be along
and east of i-75 today in the late afternoon to early
evening. Temperatures will be warm again today with low to
mid 90s expected.

Fairly similar weather pattern expected for Sunday although
models are showing a slightly more moist atmosphere compared
to Saturday. This should lead to a bit better coverage of
afternoon showers and storms with the interior peninsula
most likely to see greatest coverage.

Long term (Monday - Friday)
The upcoming work week is shaping up to be an active summer
convection period as several factors work together in order
to keep late afternoon and evening thunderstorms coverage
rather high. Monday begins the long term period with the
florida peninsula residing at or just below the base of
longwave troughing over the eastern conus. Associated with
this trough, we will find a weak frontal boundary that will
have sagged to near the i-10 corridor by morning. This
feature will have a big impact on the Monday forecast,
especially just how far south this boundary sags by the
afternoon hours. This aspect is not 100% agreed upon among
the ensemble members, with the GFS showing the most
southward solution. Using LI as a proxy for surface boundary
position, the front will lie somewhere between gainesville,
and the i-4 corridor. Other guidance members are slightly
shifted northward back closer to i-10. The main impact of
this difference would be just how much drier the forecast
will be for the northern zones (levy citrus). Being behind
the boundary would certainly decrease rain chances, however,
with the GFS being the most aggressive in movement, will
keep a forecast that gives some weight to the more numerous
northern solutions. Things can be adjusted should a trend
toward the current GFS solution appear in later guidance
packages. For everyone else, this combination of synoptic
focus, sea-breeze focus, and a highly moist column south of
the boundary will no doubt support development of numerous
diurnal showers storms. Monday will see the weakest low
level flow of the extended period, and hence the west-coast
sea- breeze will have the best potential to move inland
during the day. Of course, convection may alter some of this
evolution, but feel Monday is the best chance to see
convection consolidate during the evening hours across our
inland areas (similar to the current nam).

The frontal boundary will certainly become stationary by
Monday night, and then decay quickly during the day
Tuesday. The frontal decay will allow continental high
pressure along the eastern seaboard to take control of our
synoptic low level flow. 100-700mb flow will become increasingly
easterly through Tuesday, and become defined by Tuesday
night. The ridge then shifts offshore of the carolinas for
the remainder of the week, with our low level winds veering
slightly out of the southeast.

This E SE flow is an active sea-breeze convection setup for
the florida west coast, as it focuses the greatest low level
focus convergence along the west-coast seabreeze i-75
corridor of the state. This already favorable convection
setup will be enhanced by a very moist and thermodynamically
friendly atmospheric column (pw values at or over 2").

Therefore, the forecasts for the middle and end of the week
will remain similar from day to day. Nocturnal scattered
storms are likely over the eastern gulf of mexico
(especially late along land-breeze boundaries). The landmass
will should see mostly dry conditions during the overnight
and through the morning midday hours. Sct showers and storms
will migrate east to west across the state during the afternoon
hours, and then consolidate in coverage during the late
afternoon early evening hours along the fl west coast. The
synoptic flow will then favor this activity migrating offshore
into the gulf and weakening during the later evening hours.

Temperatures throughout this period look to be near climo,
with no significant synoptic influences to suggest anything
different. Local convective clusters on Monday and Tuesday
may be enough to keep certain areas in the 80s, but to early
to try and get all that detailed at this stage, nor is it
going to change many plans whether high temps are say 90 vs
85.

Aviation
Some lingering showers may briefly reduce vsbys at srq and
pie but otherwiseVFR conditions expected for the rest of
the overnight. Then after sunrise, daytime heating will
allow CU development over the area with some brief MVFR
cigs possible during the mid to late morning hours. By
afternoon, scattered showers and thunderstorm will develop
with the greatest coverage expected across the interior
peninsula.

Marine
No major marine hazards are expected through early next
week. High pressure will continue to dominate our area
producing a south to southeast flow with winds taking on a
southwest and west component during the afternoon evening
hours as the sea breeze forms and pushes inland. While
greatest rain chances will remain inland, typical summertime
boating precautions should still be exercised as any
thunderstorm can produce gusty winds and locally higher
waves.

Fire weather
With moist southeasterly flow continuing into next week,
moisture content and relative humidity values will remain
well above critical levels. This combined with chances for
rain each day will prevent any fire weather concerns.

Preliminary point temps pops
Tpa 91 77 90 76 30 20 40 30
fmy 93 76 92 75 40 30 30 30
gif 94 76 93 74 40 40 50 40
srq 90 76 88 76 20 20 20 20
bkv 92 74 91 73 30 20 40 30
spg 91 78 90 77 30 10 30 20

Tbw watches warnings advisories
Fl... None.

Gulf waters... None.

Short term aviation marine fire weather... 11 mckaughan
mid term long term decision support... 14 mroczka


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CLBF1 5 mi80 min NNE 1 G 1.9 80°F 1015.9 hPa
SAPF1 - 8726520 - St. Petersburg, FL 6 mi44 min NE 2.9 G 5.1 79°F 85°F
OPTF1 - 8726607 - Old Port Tampa, FL 10 mi44 min ENE 1.9 G 2.9 80°F 85°F1016.6 hPa
MTBF1 12 mi44 min ESE 2.9 G 2.9 79°F 1016.7 hPa
CWBF1 - 8726724 - Clearwater Beach, FL 14 mi44 min SE 4.1 G 9.9 78°F 86°F1017 hPa
PMAF1 14 mi44 min 77°F 85°F1015.9 hPa
TPAF1 - 8726694 - TPA Cruise Terminal 2, Tampa, FL 18 mi50 min N 2.9 G 2.9
MCYF1 18 mi44 min 86°F
TSHF1 - 8726667 - East Bay Causeway, FL 18 mi44 min NE 2.9 G 4.1
FHPF1 - Fred Howard Park, FL 25 mi80 min SE 5.1 G 7 80°F 1017.2 hPa
42013 - C10 - Navy-2 45 mi44 min ESE 7.8 G 9.7 84°F

Wind History for St. Petersburg, FL
(wind in knots)    EDIT      (on/off)   Help
5
AM
6
AM
-12
PM
8
AM
-12
PM
10
AM
11
AM
12
PM
-12
PM
-12
PM
-12
PM
4
PM
5
PM
6
PM
7
PM
8
PM
-12
PM
10
PM
-12
PM
-12
PM
-12
PM
2
AM
3
AM
4
AM
Last
24hr
SE8
G13
SE7
G11
SE6
S6
G9
S4
S4
S5
G9
SW7
G10
W7
SW8
G11
W8
NW3
N2
N2
S3
1 day
ago
SE7
G11
SE7
G11
SE5
SE5
G8
S7
G10
SE6
G11
SE4
S5
S5
S4
SW8
W9
W9
S12
G18
N3
G6
N5
G11
NE4
E6
SE6
G10
2 days
ago
SE7
G13
SE7
SE7
G11
SE7
G12
SE8
G11
S9
S7
S10
G13
SE5
SW13
G17
S14
G18
S9
G12
SW7
SE5
G8
SE8
G11
SE7
G10
SE7
G10
SE5
G9
SE5
G8

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Albert Whitted Airport, FL5 mi81 minN 310.00 miOvercast80°F75°F87%1016 hPa
St. Petersburg/Clearwater Airport, FL8 mi81 minS 410.00 miLight Rain79°F75°F88%1016.6 hPa
Macdill Air Force Base, Fl., FL11 mi76 minN 010.00 miLight Drizzle77°F77°F100%1016.9 hPa
Tampa, Tampa International Airport, FL15 mi81 minSE 310.00 miMostly Cloudy80°F75°F85%1016.9 hPa
Tampa, Peter O Knight Airport, FL16 mi79 minN 010.00 miOvercast81°F78°F94%1016.9 hPa
Tampa, Vandenberg Airport, FL24 mi79 minS 310.00 miOvercast81°F75°F84%1017.3 hPa

Wind History from SPG (wind in knots)
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
Last 24hrS11SE9SE8S7S7S6S4E4SW5SW7SW9SW7W9W8NW6NW3N4CalmCalmN3CalmS6N3Calm
1 day agoS9S8S9S9S11S7S6S4S6W9SW8W11W8SW14
G17
E7N6N11N4E9E9SE12SE12S15S13
2 days agoSE15S14S11S13S14S11S9S11S9SW13SW12
G19
SW14SW10S8SW7SE10SE11SE11SE10S9SE12SE10SE11SE14

Tide / Current Tables for Johns Pass, Florida
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Johns Pass
Click for Map
Sat -- 02:18 AM EDT     1.47 feet High Tide
Sat -- 05:34 AM EDT     1.39 feet Low Tide
Sat -- 06:36 AM EDT     Sunrise
Sat -- 07:12 AM EDT     Moonrise
Sat -- 11:47 AM EDT     2.83 feet High Tide
Sat -- 08:01 PM EDT     -0.51 feet Low Tide
Sat -- 08:30 PM EDT     Sunset
Sat -- 09:11 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.11.41.51.51.41.41.41.51.82.22.52.82.82.72.31.81.20.60-0.4-0.5-0.4-0.10.4

Tide / Current Tables for Old Tampa Bay Entrance (Port Tampa), Florida Current
   EDIT      (on/off)   Help   One Week of Data
Old Tampa Bay Entrance (Port Tampa)
Click for Map
Sat -- 02:07 AM EDT     1.39 knots Max Flood
Sat -- 05:57 AM EDT     -0.00 knots Slack
Sat -- 06:35 AM EDT     Sunrise
Sat -- 07:11 AM EDT     Moonrise
Sat -- 07:51 AM EDT     -0.38 knots Max Ebb
Sat -- 09:41 AM EDT     0.00 knots Slack
Sat -- 12:39 PM EDT     1.11 knots Max Flood
Sat -- 03:26 PM EDT     -0.00 knots Slack
Sat -- 08:22 PM EDT     -1.73 knots Max Ebb
Sat -- 08:29 PM EDT     Sunset
Sat -- 09:10 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.61.21.41.30.90.4-0-0.3-0.4-0.20.10.611.10.80.3-0.3-0.9-1.3-1.6-1.7-1.7-1.4-0.8

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Tampa Bay, FL (6,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Tampa Bay Area, FL
   (on/off)   Help
weather_mapweather_map weather_map

Gulf Stream Current


Ad by Google

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.