Tuesday, December10, 2019
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Marine Weather and Tides
Shepherdsville, KY

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
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 7:46AMSunset 5:24PM Tuesday December 10, 2019 4:00 PM EST (21:00 UTC) Moonrise 4:33PMMoonset 6:00AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 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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7 Day Forecast for Marine Location Near Shepherdsville, KY
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location: 38, -85.7     debug


Area Discussion for - Louisville, KY
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FXUS63 KLMK 102041 AFDLMK

Area Forecast Discussion National Weather Service Louisville KY 341 PM EST Tue Dec 10 2019

Short Term. (This evening through Wednesday) Updated at 230 PM EST Tue Dec 10 2019

Dry low-level air is winning out so far today, with only a few snow reports coming in. KSDF has a dewpoint in the single digits this hour! The mid- and upper-level moisture almost is out of the region as well. By daybreak, light winds and clear skies should make for a chilly start to the day, low 20s for most. High pressure building in from the southwest should bring southwest winds tomorrow, but the chilly start will mean after highs still 5-10 degrees below normal.

Long Term. (Wednesday night through Tuesday) Issued at 330 PM EST Tue Dec 10 2019

Wednesday night - Thursday night

The area remains mostly clear. High pressure sits over the region, but as high pressure gets pushed east by zonal upper flow, surface winds will become variable before becoming southerly. Ahead of a shortwave that will pass through the Ohio Valley on Thursday night, clouds will move in from the west on Thursday.

Friday - Saturday

Upper flow becomes more amplified over the Plains on Friday. This creates a low pressure response at the surface over the Appalachians. Shower chances will expand westward through central Kentucky. Models hold the best chance of precipitation east of Interstate 65. The axis of the upper trough will swing east and push any remaining showers out of the area by Saturday evening.

Saturday night - Sunday

Zonal flow returns for a short time. Northwest surface flow limits highs to the mid 30 to mid 40s from southern Indiana to southern Kentucky.

Sunday night - Tuesday

This is going to be this weeks area of interest. An upper trough begins to form west of the Four Corners region. As the trough drops into Texas, Gulf moisture will be carried north along a warm front running southwest to the northeast from eastern Texas to eastern Tennessee. The front will likely move north of the Ohio Valley region early Monday night before the same front moves east through the region early Tuesday morning as a cold front.

The center of this low pressure system is expected to pass through southern Indiana. Depending on the exact timing of precipitation, precipitation type could vary and wind energy appears strong. The jet stream will place a couple of jet streaks near this system, so forcing could be enhanced by this. This system is still several days out, but it's worth keeping an eye on.

Aviation. (18Z TAF Issuance) Issued at 1230 PM EST Tue Dec 10 2019

Have mostly elevated snows in the KBWG to KLEX corridor this hour. Surface observations are 10 miles across the region with high cloud bases. LEX is closest to some of the deeper moisture, and should a heavier snow band move over that site, they may briefly go MVFR . but the chance of that occurring is low enough to keep out of this set of TAFs. Dry air moving in tonight will bring clearing skies and light and variable winds. Winds will pick up from the southwest during the day Wednesday as high pressure moves in from the southwest.

LMK WATCHES/WARNINGS/ADVISORIES. IN . None. KY . None.

Short Term . RJS Long Term . KDW Aviation . RJS


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Louisville, Standiford Field, KY13 mi65 minWNW 510.00 miOvercast32°F10°F41%1024.6 hPa
Fort Knox, KY16 mi65 minWSW 510.00 miMostly Cloudy29°F14°F55%1025.3 hPa
Louisville, Bowman Field Airport, KY16 mi68 minW 810.00 miFair31°F7°F36%1024.7 hPa

Link to 5 minute data for KSDF

Wind History from SDF (wind in knots)
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Last 24hrSW13
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1 day agoS10S11S8S7S6SE6S11S10
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2 days agoNE4E6E5E5E6E5SE4E4CalmE4SE4SE4CalmSE4SE4SE3SE5SE4SE3S7S9S12S9S11
G22

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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wmap_A
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Louisville, KY (16,3,4,5)
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Ground Weather Radar Station Louisville, KY
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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.