Tuesday, December18, 2018 L-36.com

Marine Weather and Tides
Columbus, MS

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 6:51AMSunset 4:50PM Tuesday December 18, 2018 9:11 AM CST (15:11 UTC) Moonrise 3:02PMMoonset 3:19AM Illumination 84% 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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7 Day Forecast for Marine Location Near Columbus, MS
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location: 33.51, -88.41     debug

Area Discussion for - Jackson, MS
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Fxus64 kjan 181149
area forecast discussion
national weather service jackson ms
549 am cst Tue dec 18 2018

Fog stratus are bringing ifr lifr conditions to gtr pib hbg this
morning. A mix ofVFRVFR prevail at the remaining TAF sites.

Expect these conditions to continue until 14 15z when the fog
should begin to dissipate.VFR conditions will prevail at taf
sites through this evening. Some patchy fog may reduce
visibilities at hbg early on Wednesday. The winds will be light
out of the southeast through the period. 15

12z TAF discussion:
fog stratus is once again developing across TAF sites tonight and
expect this trend to continue. Currently TAF sites along and north
of i-20 are seeing a mix of MVFR ifr lifr. These conditions will
continue until 15z when the stratus fog will begin to mix out.

ExpectVFR across most sites after this time, with these
conditions continuing through the evening hours. 15

Today through tonight:
areas of dense fog prevails across the area once again this
morning, and a dense fog advisory is in effect until 10am. Strong
surface high pressure ridging continues to prevail over the
region, but will begin to lose its grip tonight as an upper trough
deepens over the plains. Clouds will be on the increase overnight
out ahead of this system that will slowly move across the area
through Friday. Temperatures will climb into the 60s once again
this afternoon, with overnight lows in the low mid 40s tonight.

Wednesday through next Monday:
a strong upper trough pushing into the lower ms valley region
will bring unsettled weather and a couple of rounds of
significant rainfall to the arklamiss from Wednesday through early
Friday. Initial height falls will incite strong moisture
transport Wednesday with weak elevated convective instability
supporting numerous showers and perhaps a few thunderstorms given
up to a few hundred joules kg of most unstable cape. The warm
advection rainfall should peak late in the afternoon to evening
hours Wednesday, and then diminish coverage overnight into
Thursday, especially for locations along south of the i-20

Thereafter, intense pacific jet energy will dig through the base
of the trough helping to increase height falls and cyclonic
vorticity advection. As this happens expect fairly widespread
rainfall to redevelop over most of the forecast area late Thursday
afternoon into Thursday night. The trough will be progressive and
nwp guidance has sped up passing of the system with only light
rain expected to linger early Friday, and storm total rainfall
should be up to an inch on average. As of now we don't expect
heavy rain to be a significant concern with this system given
relatively poor levels of boundary layer moisture and instability.

In addition to rainfall, will continue to monitor the wind
potential as strong mixing and a tightening pressure gradient
could support impactful surface winds worthy of a mention in the
hwo. At this time the explicit guidance is not suggesting we will
need a wind advisory, but wind could certainly overachieve with
this scenario. Also, as mentioned in previous discussions, a few
flakes of snow cannot be ruled out over northeast portions of the
area, but with wet bulb zero heights likely not getting below 1500
ft prior to end of precipitation, will continue to leave any
wintry precip out of the forecast. Otherwise, given the faster
progression of the trough and earlier clearing Friday, expect
there to be enough Sun to allow some warming to more tolerable
levels by Friday afternoon.

Weather for the weekend and the approach of christmas day should
be milder with generally dry conditions. Weak high pressure will
be mostly in control, but a weak cold front could bring a bit of
light rain, especially from Sunday into christmas eve. Overall,
travel weather should be good for early next week, and high
temperatures mainly in the low mid 60s would be roughly 5 to 10
deg f above climatological normals. Ec

Preliminary point temps pops
Jackson 64 43 61 50 0 0 69 81
meridian 63 41 61 50 0 0 57 75
vicksburg 64 44 61 48 0 0 77 75
hattiesburg 66 44 64 52 0 0 82 69
natchez 64 44 61 49 0 0 82 61
greenville 60 43 58 47 0 0 59 81
greenwood 63 43 61 50 0 0 47 83

Jan watches warnings advisories
Ms... Dense fog advisory until 10 am cst this morning for msz018-019-

La... Dense fog advisory until 10 am cst this morning for laz007>009-

Ar... Dense fog advisory until 10 am cst this morning for arz074-075.


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Columbus/West Point/Starkville, Golden Triangle Regional Airport, MS10 mi15 minN 010.00 miPartly Cloudy42°F42°F100%1023.8 hPa
Columbus Air Force Base, MS11 mi2.3 hrsN 00.50 miFog35°F34°F96%1022 hPa
George M Bryan Airport, Starkville, MS24 mi-4 minN 010.00 miFair41°F41°F100%1023.4 hPa

Wind History from GTR (wind in knots)
Last 24hrN3NW4CalmNW3N3N43CalmN3N3NE3CalmCalmCalmN4N3N3CalmSW3CalmCalmCalmCalmNW3
1 day agoNW6W5NW6NW5W5NW64NW4NW3W3CalmW44SW5SW5Calm3N3W3SW7CalmCalmN3Calm

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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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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Wind Forecast for Jackson, MS (10,2,3,4)
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Ground Weather Radar Station Columbus AFB, MS
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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.