Friday, January24, 2020
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Marine Weather and Tides
Nashville-Davidson, TN

Version 3.4 		NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.
Sunrise 6:52AMSunset 5:06PM Friday January 24, 2020 10:32 AM CST (16:32 UTC) Moonrise 7:53AMMoonset 5:57PM Illumination 0% Phase: New Moon; Moon at 29 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 Nashville-Davidson, TN
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location: 36.17, -86.79     debug

Area Discussion for -
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FXUS64 KOHX 241129 AFDOHX

Area Forecast Discussion National Weather Service Nashville TN 529 AM CST Fri Jan 24 2020

UPDATE. FOR 12Z AVIATION DISCUSSION.

DISCUSSION.

Showers continue across the area as an area of positive vorticity advection swings through the broad trough/ upper low. The upper low is currently centered over north central Arkansas and south central Missouri. There should be a break in the rain between the broad rain shield that we've experienced over the last several hours and the showers associated with the upper low. The upper low will wobble northeastward along the Ohio River Valley today and be located along the central Illinois/ Indiana border by 00z. A few showers will linger into the overnight hours and temperatures will drop enough on the plateau after midnight for a transition from rain to a rain/snow mix to even a couple pure snow showers. Any leftover moisture will move off the plateau Saturday morning, but clouds will continue to linger. No accumulations or impacts should be expected with any snowflakes that do fly on the plateau.

Models have come into agreement with the next shortwave that will dip out of the northern Rockies on Sunday bringing another chance of some showers mainly Sunday afternoon through Sunday night. Again, soundings show that it may be cold enough to mix in a few snow flakes on the plateau late Sunday night and the first thing Monday morning, but no impacts are expected.

Another wave will eject eastward from the coast of California to the southern Plains by Tuesday morning. This wave will weaken as it approaches our area. The GFS and Euro now show very little, if any, QPF for our area as the weak wave swings through Tuesday night and Wednesday. I kept a slight chance of showers in the forecast as the Canadian does show the wave strong enough to produce some showers for our area, plus previous runs of the GFS and Euro had shown some showers for our area. Some members of the GEFS still do. Models 24 hours ago showed the next trough right on the heels of the Wednesday trough. Now models are digging the next trough much further south into Sonora Mexico which will delay the eastward progression. Meanwhile, a northern stream trough will move through the northern Plains to the Great Lakes from Thursday into Friday. Both the GFS and Euro keep the QPF associated with that disturbance north of us. This would mean a dry end of the work week for us in Middle Tennessee. Overall, confidence in the forecast from Tuesday night through the end week is lower than usual as models have changed quite a bit over the last 24 hours and there is a lot of spread in ensemble solutions.

AVIATION. 12Z TAF DISCUSSION.

IFR conditions continue to plague mid-state terminals as we deal with our latest system. Some improvement is possible this afternoon, climbing to MVFR, but it should be short lived, dropping back to IFR tonight.

Winds will pick up a little throughout the day with occasional gusts of 15-20 kts as the directions swings from south to southwest this afternoon.

OHX WATCHES/WARNINGS/ADVISORIES. NONE.



DISCUSSION . Reagan AVIATION . Unger

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Nashville, Nashville International Airport, TN7 mi39 minSW 510.00 miMostly Cloudy49°F41°F74%1013.3 hPa
Smyrna, Smyrna Airport, TN19 mi36 minWSW 1010.00 miOvercast47°F43°F86%1014.7 hPa

Link to 5 minute data for KBNA

Wind History from BNA (wind in knots)
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Last 24hrSE10S10
G16		S7SE7E8SE5E6SE5SE6S9SE9S7S4S7S10S6S6S11S4S6SW3SW3SW3SW5
1 day ago3CalmS6S4S7SE6SE5SE4SE4CalmCalmCalmE3CalmCalmSE4E3CalmE4CalmSE4S5SE4SE4
2 days agoNE6NE65
G16		N6
G15		N6N7N9N7N6N7E5E4SE5E4CalmCalmCalmSE3W3CalmSE3SE3SE3S3
Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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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 (11,2,3,4)
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Ground Weather Radar Station Nashville, TN
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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 numerous 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.