Thursday, October18, 2018 L-36.com


Marine Weather and Tides
Key West, 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 7:25AMSunset 6:58PM Thursday October 18, 2018 1:37 PM EDT (17:37 UTC) Moonrise 2:34PMMoonset 1:01AM Illumination 68% Phase: Waxing Gibbous; Moon at 9 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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GMZ075 Straits Of Florida From Ocean Reef To Craig Key Out 20 Nm- Straits Of Florida From Craig Key To West End Of Seven Mile Bridge Out 20 Nm- Straits Of Florida From West End Of Seven Mile Bridge To South Of Halfmoon Shoal Out 20 Nm- Straits Of Florida From Halfmoon Shoal To 20 Nm West Of Dry Tortugas Out 20 Nm- Straits Of Florida From Ocean Reef To Craig Key 20 To 60 Nm Out- Straits Of Florida From Craig Key To West End Of Seven Mile Bridge 20 To 60 Nm Out- Straits Of Florida From West End Of Seven Mile Bridge To South Of Halfmoon Shoal 20 To 60 Nm Out- Straits Of Florida From Halfmoon Shoal To 20 Nm West Of Dry Tortugas 20 To 60 Nm Out- 1038 Am Edt Thu Oct 18 2018
.small craft advisory in effect...
This afternoon..East winds near 20 knots. Seas 5 to 7 feet. Isolated showers and Thunderstorms.
Tonight and Friday..East winds near 20 knots. Seas 5 to 7 feet. Isolated showers.
Friday night..East winds 15 to 20 knots. Seas 4 to 6 feet. Isolated showers.
Saturday..East winds near 15 knots, decreasing to near 10 knots. Seas subsiding to 2 to 4 feet. Isolated showers.
Saturday night..Northeast to east winds 5 to 10 knots. Seas 1 to 3 feet. Isolated showers.
Sunday..Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Isolated showers.
Sunday night..Northeast to east winds 10 to 15 knots. Seas 2 to 4 feet. Isolated showers.
Monday and Monday night..Northeast to east winds near 15 knots. Seas 3 to 5 feet. Isolated showers and Thunderstorms.


7 Day Forecast for Marine Location Near Key West, FL
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location: 24.55, -82.13     debug


Area Discussion for - Key West, FL
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Fxus62 kkey 181449
afdkey
area forecast discussion
national weather service key west fl
1049 am edt Thu oct 18 2018

Discussion
Mean layer analyses from cimms indicate lower heights have pivoted
southeast through the northeastern united states. The western
atlantic ridging has squirted west, merging with a continental
node over the northern gulf. Surface winds have responded to the
adjustments aloft, now just north of east, although not quite as
boisterous as yesterday. Temperatures are in the mid to upper 80s
and dewpoints are in the mid 70s. Skies are sunny with only
isolated showers detected by the kbyx radar. The forecast calls
for a more sunshine and limited rain chances through the
afternoon. No changes needed or planned.

Marine
Small craft advisory remains in effect for the straits of florida
due to northeast to east winds near 20 knots. From synopsis, high
pressure will persist across the western north atlantic and the
southeastern united states today through Friday. A ridge axis will
sag southward Friday night through Sunday. Fresh east breezes are
expected across the coastal waters of the florida keys through
Friday, followed by diminishing breezes Friday night through the
weekend. Another ridge will slowly build north of the keys early
next week.

Aviation
PrevailingVFR at keyw and kmth through 18 12z as dry air keeps shra
coverage to a minimum. Breezy east winds will resume later today and
continue through Friday morning as local pressure gradient tightens
once again.

Climate
On this date in 1906, a major hurricane crossed cuba, moved just
southeast of key west, and along the entire length of the keys. An
extension of henry flagler's florida east coast railway was under
construction between miami and key west at the time, and an
estimated 135 railroad workers perished as they sought shelter on
barges and houseboats.

Key watches warnings advisories
Fl... None.

Gm... Small craft advisory for gmz052>055- 072>075.

Public marine fire... Clr
aviation nowcasts... .Ulrich
data collection... ... Bt
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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SANF1 - Sand Key, FL 15 mi47 min 82°F 1019.5 hPa (-0.3)72°F
KYWF1 - 8724580 - Key West, FL 17 mi37 min E 8 G 18
PLSF1 - Pulaski Shoal Light, FL 35 mi37 min E 19 G 21 82°F 1019.7 hPa (+0.0)
GKYF1 40 mi97 min 87°F

Wind History for Key West, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Key West International Airport, FL20 mi44 minE 15 G 2210.00 miA Few Clouds88°F73°F63%1019.8 hPa
Key West Naval Air Station, FL23 mi44 minE 1710.00 miPartly Cloudy89°F73°F59%1019.5 hPa

Wind History from EYW (wind in knots)
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Last 24hrE17E16E12E14E14E11E12
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E7E7E7E9NE8NE8E8E5E7E9E13E15E12
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Tide / Current Tables for Sand Key Lighthouse, Sand Key Channel, Florida
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Sand Key Lighthouse
Click for Map
Thu -- 02:00 AM EDT     Moonset
Thu -- 04:19 AM EDT     1.70 feet High Tide
Thu -- 07:26 AM EDT     Sunrise
Thu -- 11:55 AM EDT     0.57 feet Low Tide
Thu -- 03:32 PM EDT     Moonrise
Thu -- 06:31 PM EDT     1.33 feet High Tide
Thu -- 06:58 PM EDT     Sunset
Thu -- 11:41 PM EDT     0.93 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.11.31.51.61.71.71.61.41.310.80.60.60.60.811.21.31.31.31.31.211

Tide / Current Tables for Boca Grande Channel, Florida Current
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Boca Grande Channel
Click for Map
Thu -- 12:07 AM EDT     0.00 knots Slack
Thu -- 02:01 AM EDT     Moonset
Thu -- 02:24 AM EDT     0.44 knots Max Flood
Thu -- 06:00 AM EDT     -0.00 knots Slack
Thu -- 07:27 AM EDT     Sunrise
Thu -- 09:36 AM EDT     -0.89 knots Max Ebb
Thu -- 12:25 PM EDT     0.00 knots Slack
Thu -- 03:33 PM EDT     Moonrise
Thu -- 03:54 PM EDT     0.73 knots Max Flood
Thu -- 06:58 PM EDT     Sunset
Thu -- 07:08 PM EDT     -0.00 knots Slack
Thu -- 10:20 PM EDT     -0.87 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.10.30.40.40.40.30-0.4-0.7-0.9-0.9-0.7-0.20.30.60.70.70.70.50.1-0.4-0.7-0.9-0.8

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Key West, FL (13,3,4,5)
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Ground Weather Radar Station Key West, FL
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weather_mapweather_map weather_map

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.