Monday, August21, 2017 L-36.com


Marine Weather and Tides
West Hattiesburg, 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 6:25AMSunset 7:34PM Monday August 21, 2017 8:30 PM CDT (01:30 UTC) Moonrise 6:13AMMoonset 7:42PM 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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GMZ532 Mississippi Sound- 351 Pm Cdt Mon Aug 21 2017
Tonight..Southeast winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Waves subsiding to less than 1 foot after midnight. Dominant period 4 seconds after midnight. Slight chance of showers and Thunderstorms through the night.
Tuesday..East winds 5 to 10 knots becoming southeast in the afternoon. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Tuesday night..Southwest winds 5 to 10 knots becoming west after midnight. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Wednesday..Northwest winds 5 to 10 knots becoming southwest in the afternoon. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Wednesday night..West winds 5 to 10 knots becoming northwest after midnight. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Thursday..Northeast winds 5 to 10 knots becoming south late in the afternoon. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Thursday night..West winds 5 to 10 knots becoming north after midnight. Waves 1 foot or less. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Friday..Northeast winds 5 to 10 knots becoming southeast in the late morning and afternoon. Waves 1 foot or less. Chance of showers and Thunderstorms.
Friday night..Southwest winds 5 to 10 knots becoming northwest after midnight. Waves 1 foot or less. Slight chance of showers and Thunderstorms.
Saturday..Northeast winds 5 to 10 knots becoming south late in the afternoon. Waves 1 foot or less. Chance of showers and Thunderstorms.
Saturday night..Southwest winds 5 to 10 knots becoming north after midnight. Waves 1 foot or less. Chance of showers and Thunderstorms.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 351 Pm Cdt Mon Aug 21 2017
Synopsis..High pressure will remain over the coastal waters through mid-week. A weak front will approach the coast from the north Wednesday. This front should stall along the coast for the latter part of the week.

7 Day Forecast for Marine Location Near West Hattiesburg, MS
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location: 31.29, -89.51     debug


Area Discussion for - Jackson, MS
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Fxus64 kjan 220001 aaa
afdjan
area forecast discussion... Updated
national weather service jackson ms
701 pm cdt Mon aug 21 2017

Update
Updated for 00z aviation discussion. Also made a slight adjustment
to the short-term forecast to extend chance for showers and
storms a few more hours into the tonight period. Rest of forecast
remains on track.

Aviation
00z TAF discussion:
vfr conditions expected to prevail through the TAF period at all
sites. There is a slight chance for some 5 to 6 sm br to develop
around 12z Tuesday, however chances for any MVFR or lower
visibility are too low to include mention in tafs. Chances for
showers and storms increase by around 18z Tuesday for sites along
and south of the interstate 20 corridor. Local restrictions to
visibility and gusty winds could accompany the stronger storms.

Nf

Discussion
Late this afternoon through Tuesday:
a strong mid level ridge will maintain the hot and humid airmass
over the arklamiss in the near term. There is sufficient instability
(ml CAPE near 3500 j kg) over northwest north central portions of
the forecast area for scattered, strong thunderstorm activity, and
seabreeze convergence related deep convection is working toward the
highway 98 pine belt area of south central ms. Expect this activity
to continue for the remainder of the afternoon before diminishing
early this evening.

Otherwise, the main story continues to be the heat with heat indices
in excess of 105 at some locations this afternoon. There may be a
limited threat for heat danger Tuesday as well given little change
in the pattern airmass, but it appears that slight weakening of the
mid level ridge may help to keep the low level thermal ridge sfc
drybulb temps a degree or two cooler. As we go into Tuesday, expect
diurnal convective development could be a little more pronounced
over southern portions of the forecast area with greater presence of
deep moisture. Ec
Tuesday night through Sunday:
another humid night with above normal temperatures is expected
for the whole CWA Tuesday but relief from the heat and humidity is
still expected for at least the northern half of the CWA for the
end of the week.

A nearly stacked low swinging into quebec Tuesday night will send an
associated cold front into our area Wednesday. A few storms ahead of
the cold front may spread into our northern zones before sunrise but
pops will increase through the day along and ahead of the cold
front. The canadian is the most aggressive and has the front south of
our CWA by midnight Wednesday night but consensus is slower and has
the front nearly stalled across the central portions of our CWA at
the same time. Considering our moist airmass with lower heights and
daytime heating, convection along and ahead of the should be
numerous and hold afternoon highs slightly cooler than normal. By
Thursday morning the cold front is expected to be near our highway
84 corridor with dew points in the 60s north of interstate 20. A
shortwave dropping around the backside of the closed low over canada
and across the great lakes region Thursday afternoon will support a
>1020mb high dropping over the great lakes region Thursday night.

This will push the the the front south of our CWA by Friday morning.

Daytime heating Thursday will contribute to scattered coverage of
storms across our south into Thursday evening but a much drier
airmass will have filtered into our whole CWA by Friday morning.

The stalled front is expected to be just south of our CWA Saturday
morning and the models agree that the remnants of harvey will be
over south texas. As the large surface high to our continues
shifting east through the weekend, the stalled boundary is expected
to drift back into our CWA while drier air hangs on across the
north. This will warrant pops increasing from the south Sunday.

Otherwise, cooler than normal afternoon highs are expected Thursday
and Friday; mainly in the upper 80s. Afternoon highs will top out
closer to normal Saturday and Sunday. Lows will be cooler than
normal across most of the area Thursday and Friday morning but be
near normal across the south during the weekend as moisture slowly
increases northward each day. 22

Preliminary point temps pops
Jackson 74 92 74 91 8 40 9 62
meridian 74 92 74 90 8 38 14 61
vicksburg 74 92 74 91 8 36 9 60
hattiesburg 74 91 75 92 10 40 22 53
natchez 73 90 74 89 10 40 12 60
greenville 75 93 75 89 8 18 23 59
greenwood 75 93 74 88 10 22 20 59

Jan watches warnings advisories
Ms... None.

La... None.

Ar... None.

06 22 ec


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OSTF1 - Stennis Test Facility 65 mi41 min Calm G 1.9 76°F 1019.7 hPa (+1.3)75°F
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 67 mi43 min NE 6 G 7 81°F 88°F1019.2 hPa

Wind History for Bay Waveland Yacht Club, MS
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hattiesburg, Bobby L Chain Municipal Airport, MS14 mi38 minSSW 310.00 miThunderstorm in Vicinity80°F73°F82%1019.9 hPa
Hattiesburg/Laurel, Hattiesburg-Laurel Regional Airport, MS16 mi35 minS 510.00 miThunderstorm in Vicinity Light Rain74°F73°F97%1020.2 hPa

Wind History from HBG (wind in knots)
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Last 24hrCalmCalmCalmCalmS4CalmCalmCalmCalmCalmCalmCalmCalm33SE6E4CalmE6E6E5S7N7SW3
1 day agoW3SW3CalmCalmCalmCalmCalmCalmSE3CalmCalmCalmCalmCalmCalmNE4NE3CalmCalmNE4S4E4E4SE4
2 days agoCalmCalmCalmCalmCalmSE3CalmCalmCalmCalmCalmCalmCalm46N7N7SW8SW5W6SE13SW6NW3NW4

Tide / Current Tables for Turkey Creek, Bernard Bayou, Mississippi
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Turkey Creek
Click for Map
Mon -- 06:12 AM CDT     Moonrise
Mon -- 06:26 AM CDT     Sunrise
Mon -- 12:30 PM CDT     2.35 feet High Tide
Mon -- 01:31 PM CDT     New Moon
Mon -- 07:31 PM CDT     Sunset
Mon -- 07:39 PM CDT     Moonset
Mon -- 09:50 PM CDT     0.27 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.40.60.811.21.41.61.822.12.32.32.32.221.71.310.70.40.30.30.3

Tide / Current Tables for Wolf River, Henderson Avenue bridge, Mississippi
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Wolf River
Click for Map
Mon -- 06:13 AM CDT     Moonrise
Mon -- 06:27 AM CDT     Sunrise
Mon -- 12:25 PM CDT     2.08 feet High Tide
Mon -- 01:31 PM CDT     New Moon
Mon -- 07:32 PM CDT     Sunset
Mon -- 07:40 PM CDT     Moonset
Mon -- 10:14 PM CDT     0.23 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20.30.50.70.911.21.41.61.71.922.12.121.81.51.20.90.60.40.30.20.3

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 (21,6,7,8)
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Ground Weather Radar Station Mobile, AL
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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.