Monday, January21, 2019 L-36.com


Marine Weather and Tides
Iona, 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 7:15AMSunset 6:02PM Monday January 21, 2019 8:23 AM EST (13:23 UTC) Moonrise 6:48PMMoonset 7:39AM Illumination 100% Phase: Full Moon; Moon at 15 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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GMZ856 Coastal Waters From Bonita Beach To Englewood Fl Out 20 Nm- 333 Am Est Mon Jan 21 2019
.small craft advisory in effect until 7 am est this morning...
Today..Northeast winds around 20 knots early become around 15 knots. Seas 4 to 6 feet. Bay and inland waters a moderate chop.
Tonight..Northeast winds around 15 knots. Seas 3 to 5 feet. Bay and inland waters a moderate chop.
Tuesday..East winds around 15 knots. Seas 2 to 4 feet. Bay and inland waters a moderate chop.
Tuesday night..East winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Wednesday..Southeast winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop. A slight chance of showers.
Wednesday night..South winds around 15 knots. Seas 2 to 4 feet. Bay and inland waters a moderate chop. A chance of showers and a slight chance of Thunderstorms.
Thursday..West winds around 15 knots then becoming northwest in the afternoon. Seas 2 to 3 feet. Bay and inland waters a moderate chop. Showers and a slight chance of Thunderstorms.
Thursday night..North winds around 15 knots. Seas 2 to 4 feet. Bay and inland waters a moderate chop.
Friday..North winds around 15 knots with gusts to around 30 knots. Seas 2 to 4 feet. Bay and inland waters a moderate chop.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 333 Am Est Mon Jan 21 2019
Synopsis..Strong high pressure tracks over the eastern half of the nation through midweek...while sprawling down across the gulf of mexico with veering and at times robust winds. A cold front approaches Wednesday then moves through the waters Thursday with a few possible Thunderstorms and winds shifting to northwest as high pressure settles in for the end of the week.


7 Day Forecast for Marine Location Near Iona, FL
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location: 26.53, -81.99     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 211128
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
628 am est Mon jan 21 2019

Aviation
Vfr will prevail at all terminal sites during the next 24
hours with northeast winds AOB 10 knots.

Prev discussion issued 306 am est Mon jan 21 2019

Hazardous marine conditions begin to diminish today...

short term (today - Tuesday)...

at mid levels - a low tracks from the lower great lakes to
new england coastal waters by later today as an attendant
trough shifts off the eastern seaboard. To our west a ridge
from the western gulf of mexico to the northern plains
slides to the east u.S. Coast by late tue. At the surface -
canadian high pressure centered in the upper midwest takes a
southeastward track... Reaching the mid-atlantic coast tue
afternoon... As it sprawls across the gulf region.

A chilly to cold morning with a freeze warning til 8 am for
levy and inland citrus counties with lows elsewhere
expected to be below normal. As the high pressure tracks
across the eastern 1 2 of the nation the lower level flow
becomes more northerly to north-northeast and while
temperatures do rise during the day they stay below normal.

This subtle shift in the winds will allow gulf waves seas to
subside... Reducing the high surf and the high risk of rip
currents. Those advisories will be expiring later today. The
lower level flow becomes northeast overnight then east
tue... Allowing warmer and slightly more moist air to filter
in. Lows Tue morning approach but stay below normal while
afternoon highs will be around normal. The moisture increase
will be limited with no rainfall.

Mid term long term (Tuesday night - Sunday)...

broad mid upper level troughing will setup across the
eastern two-thirds of the CONUS with a series of shortwaves
moving through it during the period. The first of these
waves will move across the eastern u.S. And florida with it
associated cold front pushing through the region on
Thursday. Out ahead of this boundary southeast to south flow
will bring a quick moderation in temperatures and moisture
with a few showers possible Wednesday afternoon, then
becoming likely Wednesday night into Thursday. There could
be enough instability for a few thunderstorms to pop up
during this time, but severe threat looks minimal at this
time. Behind this front high pressure will build in late in
the week into the first half of the weekend with northerly
winds bringing another shot of cool dry air to the region.

The next mid upper level shortwave will be approaching by
Sunday with an area of low pressure developing in the
northwest gulf of mexico tracking east. Low level winds will
quickly veer around to the southeast and south as a warm
front develops over the region and lifts north Saturday
night into early Sunday followed by the cold front
associated with this system sweeping through by Sunday
night. Moisture will return from south to north Saturday and
Saturday night with a few showers possible across southern
areas Saturday afternoon and across the entire region
Saturday night and Sunday.

Marine...

high pressure moves by north of the waters through midweek
with winds veering and diminishing some. However the
gradient will continue tight enough for wind speeds
occasionally in the caution to advisory range. A cold front
approaches Wed then moves through Thu with a few possible
thunderstorms and winds shifting to northwest as high
pressure settles in for the end of the week.

Fire weather...

drier air has spread across the area... Especially central
and southern mainly coastal counties. For those areas
there will be up to 3 hours of humidity values below 35
percent in the afternoon. While the erc values run in the
32-37 range winds stay below 15 mph so no red flag
conditions are anticipated. An increase in moisture begins
tue and continues through the week. Robust 20 foot and
transport winds along with increased mixing heights Tuesday
result in high dispersion values.

Preliminary point temps pops
Tpa 61 48 72 60 0 0 0 0
fmy 66 50 75 61 0 0 0 10
gif 61 47 72 59 0 0 0 10
srq 63 47 73 61 0 0 0 0
bkv 60 42 72 57 0 0 0 0
spg 60 52 70 61 0 0 0 0

Tbw watches warnings advisories
Fl... Beach hazards statement through this evening for coastal
manatee-coastal sarasota.

High surf advisory until 9 am est this morning for coastal
charlotte-coastal hillsborough-coastal lee-coastal
manatee-coastal sarasota-pinellas.

High rip current risk through this evening for coastal
charlotte-coastal hillsborough-coastal lee-coastal
manatee-coastal sarasota-pinellas.

Freeze warning until 8 am est this morning for coastal
levy-inland citrus-inland levy.

Gulf waters... Small craft advisory until 7 am est this morning for
charlotte harbor and pine island sound-coastal waters
from bonita beach to englewood fl out 20 nm-coastal
waters from englewood to tarpon springs fl out 20 nm-
coastal waters from tarpon springs to suwannee river
fl out 20 nm-tampa bay waters-waters from bonita
beach to englewood fl out 20 to 60 nm-waters from
englewood to tarpon springs fl out 20 to 60 nm-waters
from tarpon springs to suwannee river fl out 20 to 60
nm.

Aviation... 57 mcmichael
short term marine fire weather... 09 rude
mid term long term... 69 close


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BGCF1 - Big Carlos Pass, FL 10 mi89 min NE 9.9 G 13 45°F 1024.3 hPa
FMRF1 - 8725520 - Fort Myers, FL 10 mi53 min N 8 G 11 42°F 64°F1023.9 hPa
NPSF1 - 8725110 - Naples, FL 29 mi53 min NE 6 G 8 45°F 64°F1024.2 hPa
RKXF1 - Rookery Bay Reserve, FL 37 mi98 min N 5.1 44°F 43°F
VENF1 - Venice, FL 45 mi83 min NNE 6 G 9.9 42°F 62°F1024.4 hPa (+1.1)35°F

Wind History for Naples, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fort Myers, Page Field, FL7 mi30 minNNE 7 miFair42°F35°F76%1024.6 hPa
Fort Myers, Southwest Florida International Airport, FL12 mi30 minNE 610.00 miFair42°F35°F76%1024.3 hPa

Wind History from FMY (wind in knots)
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N9N10N9N9N7N10NE8NE9NE8NE7
1 day agoSE5SE9SE12
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2 days agoNE7E633SW46W5W6W5W4CalmCalmCalmCalmE4CalmCalmCalmCalmCalmCalmCalmCalmSE3

Tide / Current Tables for Iona Shores, Florida
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Iona Shores
Click for Map
Mon -- 12:17 AM EST     Full Moon
Mon -- 01:46 AM EST     1.05 feet High Tide
Mon -- 07:16 AM EST     Sunrise
Mon -- 07:38 AM EST     Moonset
Mon -- 10:23 AM EST     -0.44 feet Low Tide
Mon -- 05:12 PM EST     0.51 feet High Tide
Mon -- 06:01 PM EST     Sunset
Mon -- 06:48 PM EST     Moonrise
Mon -- 09:05 PM EST     0.42 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.91110.80.60.40.1-0.1-0.3-0.4-0.4-0.3-0.10.20.30.50.50.50.50.40.40.50.6

Tide / Current Tables for Point Ybel (0.4 Mi. NW of), Florida Current
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Point Ybel (0.4 Mi. NW of)
Click for Map
Mon -- 12:17 AM EST     Full Moon
Mon -- 12:24 AM EST     -0.00 knots Slack
Mon -- 05:05 AM EST     -1.99 knots Max Ebb
Mon -- 07:16 AM EST     Sunrise
Mon -- 07:38 AM EST     Moonset
Mon -- 08:41 AM EST     0.00 knots Slack
Mon -- 11:37 AM EST     1.47 knots Max Flood
Mon -- 05:03 PM EST     -0.00 knots Slack
Mon -- 06:02 PM EST     Sunset
Mon -- 06:08 PM EST     -0.14 knots Max Ebb
Mon -- 06:48 PM EST     Moonrise
Mon -- 07:08 PM EST     0.00 knots Slack
Mon -- 10:32 PM EST     1.26 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.3-0.4-1-1.5-1.9-2-1.9-1.4-0.60.311.41.51.310.60.30-0.1-00.30.81.21.2

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 (8,2,3,4)
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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.