Wednesday, April25, 2018 L-36.com


Marine Weather and Tides
Crystal River, 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 6:52AMSunset 8:03PM Wednesday April 25, 2018 7:56 PM EDT (23:56 UTC) Moonrise 2:59PMMoonset 3:19AM Illumination 81% Phase: Waxing Gibbous; Moon at 11 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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GMZ850 Coastal Waters From Tarpon Springs To Suwannee River Fl Out 20 Nm- 316 Pm Edt Wed Apr 25 2018
Tonight..West winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop.
Thursday..Southwest winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop.
Thursday night..Southwest winds 5 to 10 knots increasing to around 15 knots after midnight. Seas 2 feet. Bay and inland waters a moderate chop. A slight chance of showers after midnight.
Friday..West winds around 15 knots diminishing to 5 to 10 knots in the late morning and afternoon. Seas 2 feet. Bay and inland waters a moderate chop. A slight chance of showers.
Friday night..Northwest winds around 15 knots. Seas 2 to 3 feet. Bay and inland waters a moderate chop.
Saturday..Northwest winds around 10 knots. Seas 2 to 3 feet. Bay and inland waters a light chop.
Saturday night..Northwest winds around 10 knots. Seas 2 feet. Bay and inland waters a light chop.
Sunday..North winds around 10 knots then becoming northwest in the afternoon. Seas 2 feet. Bay and inland waters a light chop.
Sunday night..North winds 5 to 10 knots then becoming northeast around 15 knots after midnight. Seas 2 feet. Bay and inland waters a moderate chop.
Monday..Northeast winds around 15 knots then becoming east 5 to 10 knots in the afternoon. Seas 2 feet. Bay and inland waters a moderate chop.
GMZ800 Synopsis For The Coastal Waters From Bonita Beach To Suwannee River- 316 Pm Edt Wed Apr 25 2018
Synopsis..Western gulf high pressure building toward the waters today will keep gentle to moderate northwest or west winds with seas 3 feet or less through tonight. Winds become southwest and stay benign Thu and most of Thu night but begin to increase and shift to the west and northwest as a cold front approaches...crossing the east gulf waters Fri then exiting fl Sat. High pressure builds in over the gulf region Sun-mon then slips out over the atlantic Tue.

7 Day Forecast for Marine Location Near Crystal River, FL
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location: 28.91, -82.64     debug


Area Discussion for - Tampa Bay, FL
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Fxus62 ktbw 251841
afdtbw
area forecast discussion
national weather service tampa bay ruskin fl
241 pm edt Wed apr 25 2018

Short term (remainder of today through Thursday)
Broad cyclonic flow aloft dominates roughly the eastern one-half of
the u.S. As a couple of short wave troughs rotate through. The first
exits the mid-atlantic coast this evening while the second... Over
the central plains this afternoon... Drops into the mid to lower
mississippi valley tonight then treks over the deep south thu. At
the surface: a low associated with the second short wave trough
follows it eastward... Trailing a cold front from the tx coast to the
central gulf coast and the waters south. High pressure in the
western gulf and extending to fl this afternoon weakens some as it
shifts to the east and southeast.

A dry air mass... Model pwat values run less than 1 inch... As northwesterly
surface and 1000-700mb flow gradually shifts and diminish over night
to southwesterly thu. The limited dry air stays below 850mb with only
a few to widely scattered clouds expected... Mostly clear to clear skies
for the most part. There will be enough moisture along with the lighter
winds over night for some patchy late night fog to form inland.

Low temperatures tonight will be just below normal for northern
locations but normal for central and southern areas. Highs Thu on
the cool side except near normal in the south. Some noticeable
changes are expected to wind up this week... Details in the long
term section.

Long term (Thursday night -Wednesday)
At the start of the period a closed low over the southeastern states
will be lifting out to the northeast as an attendant cold front
moves east-southeast into the northern peninsula. A few showers
could be possible across the northern nature coast overnight as
the front approaches, otherwise mainly dry weather will continue.

On Friday a short wave trough will dig southeast across the northern
gulf coast, with this feature then moving across the north-
central florida peninsula during Friday night. This feature will
help to pull the aforementioned cold front south through the
region during Friday and Friday night. Sufficient moisture return
along and ahead of this front combined with daytime heating,
cooling temperatures aloft, and added upper level forcing from the
short wave should support scattered showers and isolated storms
(pops 20 to 30 percent) across the forecast area, with best
chances along and to the south of the i-4 corridor. With rather
cold temps aloft (-10 to -12c at 500mb) and an increase in mid and
upper level winds accompanying the short wave a few strong to
possibly severe storms will be possible across central and
southern zones with some hail and strong downburst winds the main
hazards.

Rain chances will end during Friday night as the short wave exits
to the east and the front moves to the south with drier air
moving into the region in its wake on a northwest to northerly
wind flow with pleasant dry weather expected through the upcoming
weekend as a zonal flow aloft develops and high pressure builds in
over the region.

Now during Monday through Thursday the upper level flow across the
conus will amplify in response to a strong upper level trough
developing over the western u.S.. As the western u.S. Trough
develops downstream upper level ridging will build in over the
eastern u.S. With an attendant surface high building in along the
eastern seaboard. This pattern will support dry conditions and
seasonably warm temperatures with an easterly wind flow across the
forecast area each day through the period.

Near seasonal temperatures at the start of the period will climb
to above normal during the latter part of the weekend and into
next week as heights rise and large scale subsidence from the
building upper ridge increases across the area. Overnight lows
will mainly be in the 60s, with daytime highs in the lower to mid
80s during the weekend climbing into the mid and upper 80s during
early next week.

Aviation
25 18z tafs.VFR. Dry air with westerly flow continues. Few to sct
cu sc through the afternoon... Few late night st possible with
limited br at lal and pgd. Wnw and at times gusty winds back and
diminish overnight with SW winds picking up Thu morning.

Marine
Western gulf high pressure building toward the waters today will
keep gentle to moderate northwest or west winds with seas 3 feet
or less through tonight. Winds become southwest and stay benign
thu and most of Thu night but begin to increase and shift to the
west and northwest as a cold front approaches... Crossing the east
gulf waters Fri then exiting fl sat. High pressure builds in over
the gulf region sun-mon then slips out over the atlantic tue.

Fire weather
While dry air continues for the next day or there will be enough
low level moisture to preclude any low rh concerns and to support
some patchy fog inland tonight. A front brings in showers and
storms for fri... Ending Sat as very dry air filters in as high
pressure builds into the gulf region.

Preliminary point temps pops
Tpa 65 81 69 80 0 0 0 20
fmy 64 85 68 84 0 0 0 30
gif 61 84 65 84 0 0 0 30
srq 64 80 70 80 0 0 0 20
bkv 57 82 64 80 0 0 0 20
spg 67 79 70 79 0 0 0 20

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
CDRF1 - Cedar Key, FL 26 mi57 min W 8.9 G 14 71°F 1012.5 hPa (-0.7)58°F

Wind History for Cedar Key, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Crystal River Airport, FL5 mi62 minW 6 G 1410.00 miPartly Cloudy70°F57°F64%1012.5 hPa

Wind History from OCF (wind in knots)
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Last 24hrW5W4CalmCalmCalmCalmSW3W5W3CalmSW3S3CalmNW6--W8NW5CalmNW10W10
G15
SW11
G15
W10W9W9
1 day agoSW6SW5SW5SW3S4SW4W3W5CalmS4CalmCalmCalmW6W7
G14
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2 days ago5633SE33CalmCalmCalmS3S4S4S6S6S14
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S7S10S7SW10SW14
G20
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G18
SW10

Tide / Current Tables for Twin Rivers Marina, Crystal River, Florida
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Twin Rivers Marina
Click for Map
Wed -- 04:18 AM EDT     Moonset
Wed -- 06:54 AM EDT     Sunrise
Wed -- 07:25 AM EDT     0.18 feet Low Tide
Wed -- 01:18 PM EDT     1.54 feet High Tide
Wed -- 03:58 PM EDT     Moonrise
Wed -- 07:29 PM EDT     0.60 feet Low Tide
Wed -- 08:02 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.121.81.51.20.80.40.20.20.50.81.21.41.51.51.41.31.10.80.60.60.91.21.6

Tide / Current Tables for Ozello, St. Martin's River, Florida
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Ozello
Click for Map
Wed -- 03:09 AM EDT     0.63 feet High Tide
Wed -- 04:18 AM EDT     Moonset
Wed -- 06:54 AM EDT     Sunrise
Wed -- 10:40 AM EDT     0.15 feet Low Tide
Wed -- 03:59 PM EDT     Moonrise
Wed -- 04:04 PM EDT     0.40 feet High Tide
Wed -- 08:02 PM EDT     Sunset
Wed -- 10:17 PM EDT     0.19 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.50.60.60.60.60.50.40.30.20.20.20.20.30.30.40.40.40.40.30.30.20.20.2

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.
target = "new">Link to Loop

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.