Monday, August19, 2019 L-36.com


Marine Weather and Tides
Big Pine Key, FL

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:02AMSunset 7:59PM Monday August 19, 2019 1:18 PM EDT (17:18 UTC) Moonrise 9:41PMMoonset 9:22AM Illumination 83% Phase: Waning Gibbous; Moon at 19 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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GMZ032 Bayside And Gulf Side From Craig Key To West End Of Seven Mile Bridge- Gulf Of Mexico From West End Of Seven Mile Bridge To Halfmoon Shoal Out To 5 Fathoms- 1030 Am Edt Mon Aug 19 2019
This afternoon..Northeast to east winds near 15 knots. Seas 1 to 3 feet. NEarshore waters a moderate chop. Isolated showers and isolated Thunderstorms.
Tonight..East to southeast winds near 15 knots, decreasing to 10 to 15 knots late. Seas 1 to 3 feet. NEarshore waters a moderate chop, becoming a light to moderate chop. Scattered showers and Thunderstorms.
Tuesday and Tuesday night..East to southeast winds 10 to 15 knots. Seas 1 to 2 feet. NEarshore waters a light to moderate chop. Scattered showers and Thunderstorms.
Wednesday..East to southeast winds near 10 knots. Seas 1 foot or less. NEarshore waters a light chop. Scattered showers and Thunderstorms.
Wednesday night and Thursday..East winds near 10 knots. Seas 1 foot or less. NEarshore waters a light chop. Scattered showers and Thunderstorms.
Thursday night..Northeast to east winds 10 to 15 knots. Seas 1 to 2 feet. NEarshore waters a light to moderate chop. Scattered showers and Thunderstorms.
Friday and Friday night..East winds near 10 knots. Seas around 1 foot. NEarshore waters a light chop. Scattered showers and Thunderstorms.


7 Day Forecast for Marine Location Near Big Pine Key, FL
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location: 24.73, -81.41     debug


Area Discussion for - Key West, FL
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Fxus62 kkey 191427
afdkey
area forecast discussion
national weather service key west fl
1027 am edt Mon aug 19 2019

Discussion In the middle and upper levels(700-200 mb), latest
available satellite imagery overlaid with model streamline
analysis as of 900 am, depicts the center of a deep and warm
anticyclone located over northern old mexico with an attendant
east to west oriented ridge extending across the breadth of the
gulf to across central florida. Another middle and upper ridge is
located across the western atlantic near 37n 65w with its
attendant axis extending southwest to just east of north carolina.

South of that a weak nne-ssw aligned (tutt) tropical upper
troposheric trough axis was positioned from the northern bahamas
to across central cuba.

At the surface and in the lower to middle levels(surface to 700
mb), latest available marine and land surface observations and
analysis as of 900 am, details the axis of a 1020 mb surface ridge
from the central atlantic near 30n 55w extending to across
northern florida. Across the tropics, an inverted trough tropical
wave is positioned between eleuthera and andros island. Upstream
of that, another tropical wave is positioned near the mona
passage. Latest sal (saharan air analysis) from university of
wisconsin along with goes-16 tpw as of 12z revealed that the last
vestiges of a drier lower to middle level airmass with pwat
averaging 1.5 inches encompasses much of the keys and immediate
surrounding waters attm, though the leading edge of the near and
plus 2.00 inches of pwat also associated with that wave are
nearing the cay sal bank. The 12z sounding at keyw illustrated
pwat at 1.55 inches, with a moderate to mostly fresh northeast to
east flow from just off the surface up to almost 500 mb, and
plenty of drier air still mixing in from above 850 to 500 mb.

Currently As of 900 am, skies are mostly sunny across the
islands and all surrounding waters. Temperatures across the
islands have already risen into the upper 80s with dewpoints in
the upper 70s. Radar detects just a few quickly moving low topped
showers near the island chain, with isolated showers and
thunderstorms more confined to the aforementioned approaching
higher moisture over the cay sal bank. Available marine platforms
are measuring winds near 15 knots with gusts over 20 knots across
the florida reef and at smith shoal light.

Short term The end of the rare mini-sal induced weather pattern
is coming to an end as the leading edge of deeper moisture and an
associated inverted trough tropical wave approach from the east
during this evening. For today ample middle level drier air will
mix down allowing for only isolated showers and perhaps a
thunderstorm over the islands. The leading edge of a greater
concentration of scattered showers and thunderstorms associated
with the approaching tropical wave will move into the upper
florida keys later in the afternoon spreading eastward during the
evening. The mslp gradient will also remain near breezy to breezy
outside of any convection on account of the differences between
the atlantic ridging and the approaching inverted trough wave.

Given the drier air, lowered rain chances to 20%, isolated for all
of the keys, but a high chance for showers and storms is
indicated for this evening, but will be looking at that more
closely as there are signs that showers may become more numerous,
constituting likely wording for the overnight package, more on
that later.

Marine Will issue scec for all of the florida straits, hawk
channel, and across gmz033-034 thru the afternoon given the
aforementioned gradient. May continue to experience 15 to 20 knots
outside of showers and storms this evening but will revisit that
during the afternoon package. Mariners will likely encounter wind
gusts near or exceeding 25 or 30 knots in any stronger fast moving
showers or thunderstorms.

Aviation The main concern through sunset will be isolated showers
occasionally passing near or possibly over the island terminals.

Showers will be moving to the west at 15-20 knots today, so the
the sub-vfr conditions with any showers should be in and out of
the terminals quickly. Vcsh in the tafs should cover this. Outside
of showers,VFR conditions will prevail. Looking ahead to this
evening, overall shower and thunderstorm coverage will be
increasing.

Key watches warnings advisories
Fl... None.

Gm... None.

Public marine fire... Futterman
aviation nowcasts... .Haner
upper air data collection... ... Bt
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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
VCAF1 - 8723970 - Vaca Key, FL 16 mi48 min 87°F 89°F1017.4 hPa
SMKF1 - Sombrero Key, FL 17 mi28 min E 13 G 16 86°F 1017.3 hPa76°F
KYWF1 - 8724580 - Key West, FL 24 mi48 min 92°F 92°F1017.6 hPa
LONF1 - Long Key, FL 30 mi28 min 86°F 1016.4 hPa77°F
SANF1 - Sand Key, FL 31 mi28 min E 17 G 20 86°F 1015.9 hPa76°F
JKYF1 - Johnson Key, FL 35 mi78 min 87°F
LRKF1 - Little Rabbit Key, FL 36 mi138 min 87°F
MUKF1 - Murray Key, FL 36 mi78 min 88°F
PKYF1 - Peterson Key, FL 37 mi78 min 89°F
42095 37 mi48 min 87°F3 ft
BKYF1 41 mi78 min 87°F
WRBF1 - Whipray Basin, FL 43 mi78 min ENE 8 87°F
WWEF1 43 mi138 min 89°F
GBTF1 - Garfield Bight, FL 44 mi78 min 89°F
CWAF1 44 mi138 min 88°F
BOBF1 - Bob Allen, FL 44 mi78 min 89°F
SREF1 46 mi78 min 88°F
LRIF1 47 mi78 min 88°F
TBYF1 47 mi78 min 88°F
GBIF1 - Gunboat Island, FL 49 mi78 min 86°F

Wind History for Vaca Key, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Key West Naval Air Station, FL18 mi3.4 hrsE 1310.00 miPartly Cloudy91°F75°F59%1017.1 hPa
The Florida Keys - Marathon International Airport, FL19 mi85 minE 10 G 1710.00 miA Few Clouds90°F75°F62%1017.6 hPa
Key West International Airport, FL22 mi85 minE 1610.00 miA Few Clouds90°F75°F62%1017.7 hPa

Link to 5 minute data for KNQX

Wind History from NQX (wind in knots)
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Last 24hrE9E9E11E10E13E12E12E11E9E11E10E9E10E8NE7E9E7E7E8E7E7E11E13E17
1 day agoSW8S8S9S6SE7E11E7E7E7E7E10E8SE8SE6E9E8E11E9SE8E10E11E11E9E11
2 days agoS10S9SE7S5SE7E7E6E7SE5SE5SE5--N8N5E5NE5SE4--S5S8S10S10SW11S10

Tide / Current Tables for Howe Key, south end, Harbor Channel, Florida
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Howe Key
Click for Map
Mon -- 05:34 AM EDT     1.13 feet High Tide
Mon -- 07:01 AM EDT     Sunrise
Mon -- 10:21 AM EDT     Moonset
Mon -- 11:13 AM EDT     0.29 feet Low Tide
Mon -- 05:35 PM EDT     1.29 feet High Tide
Mon -- 07:56 PM EDT     Sunset
Mon -- 10:40 PM EDT     Moonrise
Mon -- 11:47 PM EDT     0.24 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.20.30.60.811.11.110.80.60.40.30.30.50.70.91.11.31.31.20.90.70.40.3

Tide / Current Tables for No Name Key (northeast of), Florida Current
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No Name Key (northeast of)
Click for Map
Mon -- 02:22 AM EDT     -0.00 knots Slack
Mon -- 05:10 AM EDT     -0.97 knots Max Ebb
Mon -- 07:01 AM EDT     Sunrise
Mon -- 08:35 AM EDT     0.00 knots Slack
Mon -- 10:21 AM EDT     Moonset
Mon -- 11:29 AM EDT     0.64 knots Max Flood
Mon -- 02:35 PM EDT     -0.00 knots Slack
Mon -- 05:29 PM EDT     -0.99 knots Max Ebb
Mon -- 07:56 PM EDT     Sunset
Mon -- 08:56 PM EDT     0.00 knots Slack
Mon -- 10:39 PM EDT     Moonrise
Mon -- 11:47 PM EDT     0.60 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.50.2-0.3-0.8-1-0.9-0.6-0.20.10.50.60.60.50.2-0.2-0.6-0.9-0.9-0.7-0.300.30.5

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 Key West, FL (13,3,4,5)
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Ground Weather Radar Station Key West, 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.