Wednesday, October18, 2017 L-36.com


Marine Weather and Tides
Bassfield, 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 7:01AMSunset 6:22PM Wednesday October 18, 2017 11:54 AM CDT (16:54 UTC) Moonrise 5:53AMMoonset 6:07PM Illumination 3% Phase: Waning Crescent; Moon at 28 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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GMZ530 Lake Pontchartrain And Lake Maurepas- 950 Am Cdt Wed Oct 18 2017
Rest of today..East winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Tonight..Northeast winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Thursday..East winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Thursday night..East winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Friday..East winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Friday night..East winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Saturday..Southeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Saturday night..Southeast winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Sunday..Southeast winds 5 to 10 knots. Waves 1 foot or less. Chance of showers and Thunderstorms in the morning, then showers and Thunderstorms likely in the afternoon.
Sunday night..Northeast winds 5 to 10 knots. Waves 1 foot or less. Showers and Thunderstorms likely.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 950 Am Cdt Wed Oct 18 2017
Synopsis..Ridge of high pressure will remain anchored over the southeast into the weekend. A cold front will approach the coastal waters Sunday night.

7 Day Forecast for Marine Location Near Bassfield, MS
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location: 31.5, -89.84     debug


Area Discussion for - Jackson, MS
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Fxus64 kjan 181601
afdjan
area forecast discussion
national weather service jackson ms
1101 am cdt Wed oct 18 2017

Update
Updated for morning discussion.

Discussion
Strong high pressure ridging continues to prevail over the region
today along with a very dry airmass. Pwats were near .30 inches on
this mornings sounding. Expect clear skies and high temperatures
in the mid upper 70s across the area. The current forecast is on
track and no updates are needed at this time. 15
prior discussion below:
today and tonight:
continued dry and slightly warmer. Early morning surface analysis
had a 1028mb high centered over the central appalachians and
ridging back across the gulf coast states. Early morning water
vapor imagery rap analysis showed the flow over a 590dam high
centered over southern texas. The mid level ridge will strengthen
over our region while the surface high remains in place through
Thursday morning. This will lead to a continuation of dry weather
and warmer temperatures today and tonight. The 00z Wed jan
sounding had a pwat of 0.38in. Pwats will remain below a half inch
through tonight. Under a light wind and full insolation of our
dry airmass again today, temperatures will top near normal. Under
clear skies and a near calm wind again tonight, strong radiational
cooling of our dry airmass will lead to morning lows slightly
cooler than normal. 22
Thursday through Tuesday:
quiet and warm weather will continue through the end of the week
as an upper-level ridge translates eastward across the southern
u.S. Then our attention quickly turns to a deepening trough of low
pressure moving from the west coast towards the central CONUS over
the weekend. The primary upper-level low center looks to remain
over interior canada during this timeframe, but guidance has been
consistently showing a sharp shortwave and attendant surface cold
front reaching the mississippi river valley by Sunday or Monday.

However, model guidance continues to show poor run-to-run
consistency regarding the trough after it crosses the rocky
mountains. At various times the gfs, ecmwf, and cmc have indicated
a portion of the trough energy to close off and develop a low
center over the gulf coast late in the weekend or early next week.

This continues to be the case with the latest round of guidance,
so the regional forecast attempts to split the differences.

Regardless of exactly how the pattern evolves over the next few
days, showers and thunderstorms will likely affect the arklamiss
area beginning Saturday as moisture returns from over the gulf of
mexico. And rain chances will continue through at least Sunday
night if the trough remains an open wave. If a closed low
develops, expect warmer and wetter weather to continue into
Monday or Tuesday. The GFS currently represents the slowest
solution that keeps a chance for wrap-around precip through
Tuesday. A reinforcing cold front should bring cooler and drier
weather heading into the middle of next week. Nf

Aviation
12z TAF discussion:
vfr conditions will prevail through Thursday morning. 22

Preliminary point temps pops
Jackson 78 49 82 54 0 0 0 0
meridian 77 46 80 52 0 0 0 0
vicksburg 79 48 82 54 0 0 0 0
hattiesburg 77 49 81 54 0 0 0 0
natchez 78 51 81 56 0 0 0 0
greenville 78 47 80 52 0 0 0 0
greenwood 77 46 80 53 0 0 0 0

Jan watches warnings advisories
Ms... None.

La... None.

Ar... None.

15


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OSTF1 - Stennis Test Facility 80 mi64 min ESE 1.9 G 5.8 72°F 1023.6 hPa (+0.8)57°F
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 86 mi54 min ENE 9.9 G 11 71°F 71°F1023.3 hPa (+0.8)

Wind History for Bay Waveland Yacht Club, MS
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hattiesburg/Laurel, Hattiesburg-Laurel Regional Airport, MS27 mi58 minENE 710.00 miFair67°F48°F53%1024.9 hPa

Wind History from PIB (wind in knots)
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Last 24hrNE5NE8E7E7NE9
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NE7NE4CalmNE3NE3NE3NE3CalmCalmN3N3N5NE4N5NE3NE4E4E5NE7
1 day agoN14
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N10N4N5N6N8N7N8N9N8N6N7N7N7N6N6N6NE7E9NE9
2 days ago3E4CalmSE4Calm5SE5SE3CalmCalmS3W4N10
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Tide / Current Tables for Tchefuncta River, Lake Pontchartrain, Louisiana
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Tchefuncta River
Click for Map
Wed -- 04:11 AM CDT     0.48 feet Low Tide
Wed -- 05:53 AM CDT     Moonrise
Wed -- 07:05 AM CDT     Sunrise
Wed -- 09:10 AM CDT     0.56 feet High Tide
Wed -- 04:48 PM CDT     0.43 feet Low Tide
Wed -- 06:08 PM CDT     Moonset
Wed -- 06:25 PM CDT     Sunset
Wed -- 11:06 PM CDT     0.54 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50.50.50.50.50.50.50.50.60.60.60.50.50.50.50.40.40.40.40.50.50.50.50.5

Tide / Current Tables for Wolf River, Henderson Avenue bridge, Mississippi
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Wolf River
Click for Map
Wed -- 12:52 AM CDT     1.60 feet High Tide
Wed -- 05:49 AM CDT     Moonrise
Wed -- 07:01 AM CDT     Sunrise
Wed -- 07:18 AM CDT     1.22 feet Low Tide
Wed -- 02:48 PM CDT     1.54 feet High Tide
Wed -- 05:28 PM CDT     1.50 feet Low Tide
Wed -- 06:05 PM CDT     Moonset
Wed -- 06:22 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.61.61.61.51.41.31.31.21.21.31.31.41.51.51.51.51.51.51.51.51.61.61.71.7

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Jackson, MS (12,3,4,5)
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Ground Weather Radar Station Jackson/Brandon, MS
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weather_mapweather_map weather_map

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.