Monday, January22, 2018 L-36.com


Marine Weather and Tides
Jackson, MS

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:58AMSunset 5:26PM Monday January 22, 2018 6:23 AM CST (12:23 UTC) Moonrise 10:23AMMoonset 10:42PM Illumination 32% Phase: Waxing Crescent; Moon at 6 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 Jackson, MS
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location: 32.32, -90.21     debug


Area Discussion for - Jackson, MS
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Fxus64 kjan 221149
afdjan
area forecast discussion
national weather service jackson ms
549 am cst Mon jan 22 2018

Update
Updated for 12z aviation discussion

Aviation
12z TAF discussion:
MVFR to ifr flight categories are prevailing across the region as
low clouds have built in. A swath of showers and thunderstorms
continues to push east into the area and will affect all TAF sites
through the remainder of the morning into early afternoon. These
will bring reduced vis and ceilings to each site. Gwo hks jan will
be affect from 12z through 15z, gtr mei hbg will be affected
generally from 15z through 19z. Clearing will then occur from west
to east with all sites returning toVFR by late afternoon. Winds
will be out of the south initially, switching to the southwest and
then west. Speeds will be around 10kts with some gusts to near
20kts possible outside of thunderstorms. Gusts to near 30kts
possible in thunderstorms. 28

Discussion
Today and tonight...

showers and some thunderstorms are moving into the western portion
of the forecast area early this morning. As anticipated, much of
this activity has lost its severity as it moved across louisiana and
into the western portions of my area. This is due to a lesser amount
of instability in place across the region. Water vapor imagery
clearly shows the closed low spinning across central kansas with the
surface low across the confluence of missouri iowa kansas nebraska.

A cold front in association with this low is located across western
arkansas down across the ARKLATEX region and into the texas hill
country. Ahead of this, as noted, were the showers and storms moving
into the eastern portions of louisiana and arkansas.

For today, this line of showers and storms will continue to push
east into and through the forecast area. Model guidance, especially
hi-res guidance, continues to show that this activity will remain
sub-severe as it moves through. Much of the hi-res cam guidance
doesn't show much of an impressive line moving through east of i-55.

Given the time of day this will be moving through across western
portions of the area, expect that much of the activity will remain
just in the form of sub-severe showers and some thunderstorms.

Global models continue to indicate that the better instability will
occur across the far eastern portions of my forecast area and
beyond, with nearing 1000 j kg of MUCAPE and the better influx of
higher dewpoints. However, it is not completely out of the question
that as the line nears the eastern border of my cwa, there could be
a few strong to isolated severe storms given the fact that there is
ample wind shear available(with deep layer shear depicted to be
around 50kts and lower level shear around 20-30kts). Will make
adjustments to the current marginal risk area in the hwo and
graphics.

Showers and storms should be exiting the east through early
afternoon with clearing skies to follow. Highs today should reach
into the the lower 60s in the delta to the lower 70s in the pine
belt. As the upper system starts to pull off to the east, high
pressure at the surface will move in this evening. Overnight lows
will drop into the upper 30s to around 40. 28
Tuesday through next Sunday:
expect dry conditions during the mid to late week along with
seasonal temperatures as zonal flow aloft helps to ensure there are
no temperature extremes. Strong surface high pressure and dry air
will make for sunny days and clear nights that will allow lows to
fall below freezing, especially Wednesday night when the surface
high will be centered over the forecast area helping to create
ideal nocturnal cooling conditions.

Global models are in good agreement on the passage of a significant
polar stream shortwave trough this coming weekend. While rain will
almost surely accompany the frontal passage over the arklamiss
region, a subtropical stream wave moving across the gulf of mexico
complicates the QPF pattern as it supports heavy convective rainfall
off the central gulf coast. Such a convective complex would tend to
intercept better moisture instability before it can interact with
the primary front, so will continue to leave out the mention of
thunder in the explicit forecast. It looks like the front should
pass through the region Saturday with seasonably cool temperatures
and dry weather to follow for Sunday. Ec

Preliminary point temps pops
Jackson 71 38 58 33 96 3 0 0
meridian 74 39 57 31 82 7 0 0
vicksburg 71 38 59 32 88 2 0 0
hattiesburg 74 40 60 34 79 4 0 0
natchez 69 39 58 33 84 2 0 0
greenville 66 36 54 32 86 2 0 0
greenwood 68 36 54 30 92 3 0 0

Jan watches warnings advisories
Ms... None.

La... None.

Ar... None.

28


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Jackson, Hawkins Field Airport, MS1 mi30 minS 1410.00 miOvercast63°F59°F87%1011.3 hPa
Jackson, Jackson International Airport, MS7 mi29 minSSE 1310.00 miThunderstorm in Vicinity62°F57°F86%1011.5 hPa
JB Williams Airport, MS11 mi28 minSSE 8 G 166.00 miLight Drizzle63°F59°F88%1011.8 hPa

Wind History from HKS (wind in knots)
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Last 24hrE3SE4SE10S12S10S9S10
G22
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1 day agoSE5SE5SE6S9S11S10S10
G20
S8SE9S10S9S7S8SE7S10S8S9SE8S8SE9SE7SE5S5SE5
2 days agoE3SE3SE4S4SW4S5S4S5SE4S5S4CalmSE3SE3CalmSE3S4S5SE5SE6SE3CalmSE4SE4

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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Weather Map
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IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Jackson, MS (7,2,3,4)
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Ground Weather Radar Station Jackson/Brandon, MS
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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.