Friday, April20, 2018 L-36.com


Marine Weather and Tides
Cedar Key, FL

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.

Sunrise 6:58AMSunset 8:00PM Friday April 20, 2018 4:24 PM EDT (20:24 UTC) Moonrise 9:56AMMoonset 12:00AM Illumination 29% Phase: Waxing Crescent; Moon at 5 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- 254 Pm Edt Fri Apr 20 2018
.small craft exercise caution tonight...
Tonight..Northeast winds 10 to 15 knots increasing to 15 to 20 knots in the late evening and overnight. Seas 2 to 4 feet.
Saturday..East winds 15 to 20 knots then becoming northeast 10 to 15 knots. Seas 2 to 4 feet.
Saturday night..East winds around 15 knots. Seas 3 to 5 feet. A slight chance of Thunderstorms.
Sunday..Southeast winds around 15 knots diminishing to around 10 knots late in the afternoon. Seas 3 to 5 feet. A chance of showers and a slight chance of Thunderstorms in the afternoon.
Sunday night..Southeast winds 5 to 10 knots increasing to around 15 knots in the late evening and overnight. Seas 2 to 3 feet. A chance of showers and a slight chance of Thunderstorms.
Monday..South winds around 15 knots. Seas 2 to 3 feet. Showers likely and a slight chance of Thunderstorms.
Monday night..South winds around 15 knots then becoming east after midnight. Seas 2 feet. A chance of showers and a slight chance of Thunderstorms in the evening.
Tuesday..Southeast winds around 15 knots then becoming south in the afternoon. Seas 2 to 3 feet.
Tuesday night..West winds around 15 knots. Seas 2 to 4 feet.
Wednesday..Northwest winds around 10 knots. Seas 2 to 4 feet.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 254 Pm Edt Fri Apr 20 2018
Synopsis..A weakening cold front will sink south over the waters today and will stall across the central waters tonight. Area of high pressure will build over the mid atlantic coast tightening the pressure gradient across the coastal waters with increasing easterly winds tonight and Saturday...with advisory levels winds possible mainly over the northern and central waters. A cold front will approach the waters Sunday night and Monday with an increasing chance of showers and possibly a few Thunderstorms.

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 201940
afdtae
area forecast discussion
national weather service tallahassee fl
340 pm edt Fri apr 20 2018

Near term [through tonight]
Surface high pressure centered well to the north of the local area
will slide east overnight. The resulting easterly flow will continue
to advect abundant moisture in from the atlantic. Clouds will be on
the increase at least for the easternmost zones, however, rain is
not expected. Lows will be in the lower to mid 50s.

Short term [Saturday through Sunday night]
Upper low currently across the desert southwest will progress
eastward through the period and be positioned across N ms al by
Monday morning. This feature will support the development of a low
pressure system across the southern plains and cold front which
will move east as well and reach the western fl panhandle by
daybreak Monday. Showers and storms will develop Saturday night
out west then in mass Sunday into Sunday night. Given the amount
of shear (not great cape) there is a risk for severe weather
across SE al and the fl panhandle where damaging winds will be the
main threat. SPC has outlooked the aforementioned area in a
marginal risk for severe weather. Rainfall amounts will be on the
order of 2-3 inches across SE al and SW ga down to 1-2 inches
across the fl counties.

Long term [Monday through Friday]
As the prior mentioned system begins to exit the region, moisture
wrapping behind the low will maintain a chance of rain in our
northern areas through Tuesday night. After that, pops will remain
low until the next system approaches on Friday. Current model
guidance for this system has some disagreement, so pops are limited
to chance to reflect the lower confidence at this time. Highs
throughout the period will stay in the upper 70s, with lows cooling
from the lower 60s to the 50s by the end of the period.

Aviation [through 18z Saturday]
Easterly winds will increase on Saturday which will in turn increase
low level cloudiness as moisture advects in from the atlantic. Mos
guidance shows MVFR CIGS developing and spreading from east to west
overnight or around daybreak Saturday. No rain is expected through
the TAF cycle.

Marine
Small craft advisories are in effect. East winds will continue to
increase to around 20 knots tonight through Sunday afternoon.

Seas will build to 4 to 6 feet as a result. Showers and
thunderstorms will become likely beginning Saturday night.

Fire weather
No fire weather concerns are anticipated throughout the next few
days as moisture increases across our area and minimum rh thresholds
will not be met. High dispersion thresholds may be briefly
approached for an hour or two tomorrow across parts of northern
florida, but are not likely to be exceeded for an extended period of
time.

Hydrology
1-3 inches of precipitation will be common across the tri-state
region with the next storm system Saturday night through Monday.

Isolated higher amounts could be possible across SE al and SW ga
but no widespread flooding is anticipated.

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 55 78 61 77 63 0 10 40 60 80
panama city 59 75 64 75 65 0 20 40 50 70
dothan 53 76 60 75 62 0 10 40 90 90
albany 52 75 59 74 61 0 0 40 80 90
valdosta 53 75 58 76 62 0 10 40 70 70
cross city 57 78 63 80 65 0 20 30 60 50
apalachicola 59 75 66 75 67 0 10 30 40 70

Tae watches warnings advisories
Fl... None.

Ga... None.

Al... None.

Gm... Small craft advisory from 8 pm this evening to 2 pm edt Sunday
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.

Near term... Barry
short term... Scholl
long term... Scholl
aviation... Barry
marine... Scholl
fire weather... Lahr
hydrology... Scholl


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CDRF1 - Cedar Key, FL 50 mi85 min ENE 16 G 18 73°F 1021 hPa (-0.7)62°F

Wind History for Cedar Key, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Crystal River Airport, FL63 mi30 minNE 1210.00 miMostly Cloudy77°F60°F57%1020 hPa

Wind History from CGC (wind in knots)
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Last 24hrW7W8W8CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNE4NE9E10
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1 day agoNW5W4W5CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmW8W7
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2 days agoW7W7W4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSW3W4W8W10W9W8

Tide / Current Tables for Cedar Key, Way Key, Florida
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Cedar Key
Click for Map
Fri -- 06:09 AM EDT     2.94 feet High Tide
Fri -- 07:00 AM EDT     Sunrise
Fri -- 10:52 AM EDT     Moonrise
Fri -- 11:27 AM EDT     1.39 feet Low Tide
Fri -- 05:06 PM EDT     3.90 feet High Tide
Fri -- 08:01 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.5-0.10.61.42.22.72.92.82.52.11.71.41.41.82.43.13.73.93.83.22.51.60.80.2

Tide / Current Tables for Suwannee River entrance, Florida
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Suwannee River entrance
Click for Map
Fri -- 06:00 AM EDT     2.84 feet High Tide
Fri -- 07:01 AM EDT     Sunrise
Fri -- 10:52 AM EDT     Moonrise
Fri -- 11:09 AM EDT     1.30 feet Low Tide
Fri -- 04:42 PM EDT     3.61 feet High Tide
Fri -- 08:02 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.5-0.10.61.42.12.72.82.72.31.91.51.31.41.82.53.13.53.63.32.821.20.50

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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for (16,3,4,5)
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Ground Weather Radar Station Tampa Bay Area, FL
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Gulf Stream Current


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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.