Friday, September22, 2017 L-36.com


Marine Weather and Tides
Seminary, 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 6:44AMSunset 6:54PM Friday September 22, 2017 7:20 PM CDT (00:20 UTC) Moonrise 8:59AMMoonset 8:43PM Illumination 6% Phase: Waxing Crescent; Moon at 2 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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GMZ532 Mississippi Sound- 316 Pm Cdt Fri Sep 22 2017
Tonight..Northeast winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms early in the evening. Slight chance of showers and Thunderstorms after midnight.
Saturday..East winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Saturday night..East winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Sunday..East winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Sunday night..East winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Monday..Southeast winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Monday night..East winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Tuesday..Southeast winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Tuesday night..South winds 5 to 10 knots becoming northwest after midnight. Waves 1 foot or less.
Wednesday..Northeast winds 5 to 10 knots becoming southwest late in the afternoon. Waves 1 foot or less.
Wednesday night..Northwest winds 5 to 10 knots. Waves 1 to 2 feet.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 316 Pm Cdt Fri Sep 22 2017
Synopsis.. A large ridge of high pressure covering most of the eastern u.s. Will extend into the central gulf coast region. Weak easterly waves of lower pressure are expected to move across the northern gulf Saturday and Sunday, then high pressure is expected to rebuild over the region early next week.

7 Day Forecast for Marine Location Near Seminary, MS
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location: 31.5, -89.56     debug


Area Discussion for - Jackson, MS
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Fxus64 kjan 222357 aaa
afdjan
area forecast discussion... Updated
national weather service jackson ms
657 pm cdt Fri sep 22 2017

Update
Updated for 00z aviation discussion

Aviation
00z TAF discussion:
aftn isold tsra shra activity was dissipating over E and SE ms at
2330z.VFR conds wl cont areawide until 10z when MVFR vsbys wl be
psbl until 13z. After 13zVFR conds wl prevail areawide through
sat aftn. Isold tsra activity is expected Sat aftn through early
evening. 22

Discussion
Tonight and Saturday: convection this afternoon has been mainly
confined to the northeast quarter of the forecast area where the
outflow from early morning convection has moved. Elsewhere, only
seeing very isolated showers and thunderstorms. These should all
diminish around sunset.

Will likely see another day similar to day for Saturday. The
forecast area will remain in the gradient of a sprawling mid level
high over the upper oh valley and a weak mid level low over the
north central gulf of mexico. The resulting northeasterly flow will
bring some weak energy aloft, which should be sufficient to help
fire off more isolated afternoon convection. 26
long term... (Saturday night through Thursday: we will start the
period with an amplified pattern of trough ridge configuration with
ridging over the eastern conus. This setup will get reversed by the
end of the period. A weak upper low will retrograde into the
forecast area during the weekend and will hang around through early
next week. This feature will get picked up by the approaching
upper trough from the west on Monday night. We can expect short
wave ridging aloft by Tuesday into Wednesday. Expect isolated to
scattered diurnal convection through Wednesday. As the upper
trough approaches a cold front will push into the region on
Thursday with isolated convection. This front will bring more
seasonable temperatures to the region for Thursday night into
Friday. Models had some differences with the front passage as well
as the evolution of the upper pattern with the front. For the 12z
run the GFS was a little faster than the 00z or 06z runs bringing
the front through on Thursday night into Friday morning. It had
some light QPF with the passage. The 12z canadian and euro was
still faster and drier with the frontal passage on Thursday. The
euro and GFS ensemble guidance was closer to the GFS solution
which builds the upper ridge quicker over the west. Do not see
any organized severe potential with frontal passage at this time.

So with this in mind will go closer to the slower GFS solution
with the front. Either way we should get more seasonable
temperatures across the region for the start of fall.

As far as temperatures are above normal highs and lows will continue
to be the rule before the frontal passage on Thursday night. Do
not see any heat stress issues as some highs will reach the 80s to
the lower 90s. Lows will be in the mid 60s to lower 70s. After
the frontal passage on Thursday night into Friday morning lows
will dip into the lower to middle 60s with highs in the lower to
middle 80s on Friday. 17

Preliminary point temps pops
Jackson 70 91 69 88 16 19 10 29
meridian 69 88 68 87 17 22 10 32
vicksburg 70 92 68 89 14 19 10 20
hattiesburg 70 90 68 86 20 22 10 45
natchez 70 89 68 88 17 19 10 23
greenville 71 92 70 90 7 18 10 19
greenwood 70 91 69 89 8 19 10 19

Jan watches warnings advisories
Ms... None.

La... None.

Ar... None.

17 22 26


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OSTF1 - Stennis Test Facility 79 mi90 min SSE 3.9 G 5.8 86°F 1013.4 hPa (-1.0)73°F
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 82 mi50 min S 4.1 G 7 84°F 84°F1013.1 hPa

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, MS12 mi24 minNNE 310.00 miFair79°F72°F79%1013.9 hPa
Hattiesburg, Bobby L Chain Municipal Airport, MS23 mi4.5 hrsNE 310.00 miPartly Cloudy92°F69°F47%1013.9 hPa

Wind History from PIB (wind in knots)
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Last 24hrCalmCalmW3CalmCalmCalmCalmCalmCalmCalm--Calm--NE4N4NE53CalmNW54CalmN10N6N3
1 day agoCalmCalmCalmN4CalmCalmCalmCalmCalmCalmCalmCalmCalmNE3NE4E64CalmNE6N4NE5NE6E3Calm
2 days agoS3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmS3CalmCalm3CalmCalmCalmCalmCalmS4NW5NW3NE4

Tide / Current Tables for Turkey Creek, Bernard Bayou, Mississippi
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Turkey Creek
Click for Map
Fri -- 01:58 AM CDT     1.88 feet High Tide
Fri -- 06:44 AM CDT     Sunrise
Fri -- 08:56 AM CDT     Moonrise
Fri -- 09:07 AM CDT     1.24 feet Low Tide
Fri -- 06:52 PM CDT     Sunset
Fri -- 08:42 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.81.91.91.81.81.61.51.41.31.21.31.31.41.41.51.51.61.61.61.71.71.81.81.9

Tide / Current Tables for Wolf River, Henderson Avenue bridge, Mississippi
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Wolf River
Click for Map
Fri -- 01:53 AM CDT     1.66 feet High Tide
Fri -- 06:45 AM CDT     Sunrise
Fri -- 08:57 AM CDT     Moonrise
Fri -- 09:31 AM CDT     1.09 feet Low Tide
Fri -- 06:53 PM CDT     Sunset
Fri -- 08:43 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.61.61.71.61.61.51.31.21.11.11.11.11.21.21.31.41.41.41.41.51.51.51.61.7

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 (20,4,5,8)
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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.