Saturday, April20, 2019 L-36.com


Marine Weather and Tides
Cedar Key, 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 6:59AMSunset 8:00PM Saturday April 20, 2019 1:01 PM EDT (17:01 UTC) Moonrise 8:33PMMoonset 7:07AM Illumination 99% Phase: Waning Gibbous; Moon at 16 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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GMZ870 Waters From Tarpon Springs To Suwannee River Fl Out 20 To 60 Nm- 1020 Am Edt Sat Apr 20 2019
.small craft advisory in effect until 8 pm edt this evening...
This afternoon..West winds around 20 knots. Seas 6 to 8 feet. A slight chance of showers.
Tonight..Northwest winds around 20 knots diminishing to 10 to 15 knots after midnight. Seas 5 to 7 feet.
Sunday..Northwest winds around 10 knots. Seas 3 to 5 feet.
Sunday night..Northeast winds around 10 knots. Seas 2 to 3 feet.
Monday..Northeast winds around 10 knots diminishing to around 5 knots early in the afternoon, then becoming north late in the afternoon. Seas 2 feet.
Monday night..North winds around 10 knots then becoming east after midnight. Seas 2 feet or less.
Tuesday..East winds around 10 knots then becoming northeast around 5 knots early in the afternoon, then becoming northwest around 10 knots late in the afternoon. Seas 2 feet or less.
Tuesday night..North winds around 10 knots then becoming southeast after midnight. Seas 2 feet or less.
Wednesday..Southeast winds around 10 knots then becoming southwest around 5 knots early in the afternoon, then becoming west around 5 knots late in the afternoon. Seas 2 feet or less.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 1020 Am Edt Sat Apr 20 2019
Synopsis..Tight pressure gradient over the region to continue the strong and gusty westerly winds today producing hazardous boating conditions. High pressure settles into the region Sunday then tracks east and arrives over the state midweek.


7 Day Forecast for Marine Location Near Cedar Key, FL
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location: 28.66, -83.73     debug


Area Discussion for -
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Fxus62 ktae 201415
afdtae
area forecast discussion
national weather service tallahassee fl
1015 am edt Sat apr 20 2019

Update
The axis of the upper trough is moving east across our forecast
area this morning. Some clouds associated with wraparound
moisture is mainly across our northern zones but no rain is
expected.

Prev discussion [641 am edt]
Near term [through today]
In the upper levels a deep trough remains over the southeast. At the
surface the low is moving into the northeast as high pressure starts
to move into the region. Winds will be gusty late this morning
through this afternoon with gusts up to 25 mph possible. Winds will
decrease late this afternoon and evening as the pressure gradient
loosens. Wrap around moisture may bring some lingering clouds
especially in the al and ga counties. Highs today will be in the mid
to upper 60s, a few spots in fl may reach 70.

Short term [tonight through Monday]
Quiet and tranquil conditions will persist through the short term
period with moderating temperatures. Potent upper low responsible
for yesterday's severe weather across the region will continue to
lift poleward Sunday with upper level flow transitioning from
northwesterly to quasi-zonal with high pressure building in at the
surface. Highs will warm each day in response to the upper level
pattern change, with highs in the mid to upper 70s Sunday and upper
70s to low 80s on Monday. Clear skies and direr air will yield large
temperature swings (25 to 30 degrees), allowing temperatures to cool
into the upper 40s to low 50s each night.

Long term [Monday night through Saturday]
A low amplitude ridge will build into the region Tuesday in response
to an upper low digging into the four corners region. This will
bring high temperatures to a few degrees above normal and lows back
to seasonal normals. The aforementioned low will eject out of the
southern rockies by midweek, moving across the southeast during the
latter part of the week. At this time, operational guidance (gfs,
ecmwf, gefs, ec ensemble) generally differ on the timing of the
feature and resultant weather for the tri-state region. Nonetheless,
our next chances of showers and thunderstorms will come during the
late week time period. It is noteworthy that this system continues
to not look as potent as the last 2 recent systems that have
affected the tri-state area. Stay tuned!

Aviation
[through 12z Sunday]
vfr conditions are expected today. Westerly winds will be gusty
mainly in the late morning and afternoon hours. Gusts up to 25 knots
are possible. Winds will decrease by sunset.

Marine
While winds have decreased below gale force levels at this hour,
hazardous conditions will persist for small crafts through the day
Saturday. A small craft advisory remains in effect through this
evening. Winds will decrease below advisory thresholds this
evening with seas gradually decreasing through the overnight
hours. Calmer conditions will resume on Sunday and persist through
at least midweek.

Fire weather
Relative humidity values will stay above critical thresholds today.

These values will be very low tomorrow but by then the winds will be
light, so red flag conditions are not expected. High dispersions
over 75 are expected today.

Hydrology
Coastal flooding has ended along the north florida coast. Dry
weather will persist into the latter part of next week. Therefore,
there are no flooding concerns.

Spotter information statement
Spotter activation is not requested. However, spotters are always
encouraged to safely report significant weather conditions when they
occur by calling the office or tweeting us @nwstallahassee.

Preliminary point temps pops
Tallahassee 70 46 77 49 83 10 0 0 0 0
panama city 68 52 73 55 76 10 0 0 0 0
dothan 66 45 75 51 80 10 0 0 0 0
albany 66 46 75 51 80 10 0 0 0 0
valdosta 67 46 75 50 81 10 0 0 0 0
cross city 69 47 75 49 82 20 0 0 0 0
apalachicola 68 50 74 53 76 10 0 0 0 0

Tae watches warnings advisories
Fl... High rip current risk through late tonight for coastal bay-
coastal franklin-coastal gulf-south walton.

Ga... None.

Al... None.

Gm... Small craft advisory until 11 pm edt 10 pm cdt this evening
for apalachee bay or coastal waters from keaton beach to
ochlockonee river fl out to 20 nm-coastal waters from
ochlockonee river to apalachicola fl out to 20 nm-coastal
waters from suwannee river to keaton beach fl out 20 nm-
coastal waters from mexico beach to apalachicola fl out 20
nm-coastal waters from mexico beach to okaloosa walton
county line fl out 20 nm-waters from suwannee river to
apalachicola fl from 20 to 60 nm-waters from apalachicola
to mexico beach fl from 20 to 60 nm-waters from mexico
beach to okaloosa walton county line fl from 20 to 60 nm.

Update... Barry
near term... Mcd
short term... Pullin
long term... Pullin
aviation... Mcd
marine... Pullin
fire weather... Mcd
hydrology... Pullin


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CDRF1 - Cedar Key, FL 50 mi61 min WNW 9.9 G 13 64°F 1017 hPa (+3.0)42°F

Wind History for Cedar Key, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Crystal River Airport, FL63 mi66 minW 13 G 2710.00 miFair68°F44°F43%1017.3 hPa

Wind History from CGC (wind in knots)
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1 day agoSW6SW5S4S5W7SW3W6CalmCalmCalmCalmCalmSE3SE3SE3SE4SE7SE6S5SE9
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2 days agoNE11E9E11
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E8E7SE4SE3W5CalmCalmCalmCalmCalmCalmCalmCalmCalmE3CalmSE6SE4SE8SE5S9
G15

Tide / Current Tables for Cedar Key, Way Key, Florida
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Cedar Key
Click for Map
Sat -- 03:24 AM EDT     3.69 feet High Tide
Sat -- 07:01 AM EDT     Sunrise
Sat -- 08:03 AM EDT     Moonset
Sat -- 09:17 AM EDT     0.57 feet Low Tide
Sat -- 03:01 PM EDT     4.01 feet High Tide
Sat -- 08:01 PM EDT     Sunset
Sat -- 09:31 PM EDT     Moonrise
Sat -- 09:50 PM EDT     -0.63 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.32.43.23.63.63.22.51.710.60.71.32.23.13.843.83.12.21.20.2-0.4-0.6-0.3

Tide / Current Tables for Cedar Key, Way Key, Florida (2)
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Cedar Key
Click for Map
Sat -- 03:16 AM EDT     3.57 feet High Tide
Sat -- 07:01 AM EDT     Sunrise
Sat -- 08:03 AM EDT     Moonset
Sat -- 08:53 AM EDT     0.83 feet Low Tide
Sat -- 02:53 PM EDT     3.91 feet High Tide
Sat -- 08:01 PM EDT     Sunset
Sat -- 09:31 PM EDT     Moonrise
Sat -- 09:39 PM EDT     -0.67 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.42.43.23.63.42.92.21.510.81.11.72.43.23.73.93.62.91.90.9-0-0.6-0.6-0.2

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 (13,3,4,5)
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Ground Weather Radar Station Tampa Bay Area, FL
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Gulf Stream Current


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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.