Friday, August18, 2017 L-36.com


Marine Weather and Tides
Bay St. Louis, 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 6:24AMSunset 7:35PM Friday August 18, 2017 5:05 PM CDT (22:05 UTC) Moonrise 3:03AMMoonset 5:10PM Illumination 12% Phase: Waning Crescent; Moon at 26 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- 354 Pm Cdt Fri Aug 18 2017
Tonight..West winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Saturday..Northwest winds 5 to 10 knots becoming southwest in the afternoon. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Saturday night..West winds 5 to 10 knots becoming northwest after midnight. Waves 1 foot or less. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Sunday..North winds 5 to 10 knots becoming southeast in the afternoon. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Sunday night..Southeast winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Monday..Southeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Monday night..Southeast 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. Chance of showers and Thunderstorms.
Tuesday night..Southwest winds 5 to 10 knots becoming northwest after midnight. Waves 1 foot or less. Slight chance of showers and Thunderstorms.
Wednesday..Northwest winds 5 to 10 knots becoming southwest in the late morning and afternoon. Waves 1 foot or less. Chance of showers and Thunderstorms.
Wednesday night..West winds 5 to 10 knots becoming northwest 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- 354 Pm Cdt Fri Aug 18 2017
Synopsis..High pressure will remain in control of the coastal waters through early next week.

7 Day Forecast for Marine Location Near Bay St. Louis, MS
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location: 30.31, -89.33     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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Fxus64 klix 182101
afdlix
area forecast discussion
national weather service new orleans la
401 pm cdt Fri aug 18 2017

Short term
No significant issues expected through the weekend with weak
surface high pressure in place along the coast with little
synoptic scale influences. Typical lake and gulf breeze boundary
convergence to be main focus of afternoon convection each day but
near climatological coverage. Temperatures, though warm to hot,
are also within a degree or two of normal each day. MAX heat
indices outside rain areas could still reach 105 for middle of the
afternoon.

Long term
Of particular interest will be viewing conditions for Monday's
total solar eclipse. At this time, still looking like 60% sky
cover and 35% chance for thunderstorms during the shadow window.

This is pretty much climo. Some marginal influence on temperatures
to flatten diurnal curve a bit during the early afternoon.

Tropical storm harvey will be in the process of moving through the
caribbean sea and across yucatan peninsula during the latter
portion of the forecast period. Little to no local affects
expected as long as the track remains in the lower bay of
campeche. Otherwise, barotropic air mass conditions to persist
with convection focused on gulf and lake breezes each day. 24 rr

Aviation
Vfr conditions should prevail at all of the terminals through the
forecast period. At kmcb, a weak inversion around 12z could result
in some patchy fog and reduced visibilities of around 3 miles. Any
fog should clear by 14z as the inversion mixes out. After 17z, some
scattered convection should develop and will have prob30 or vcts
wording in the forecast to reflect this risk. 32

Marine
A broad ridge of high pressure will remain in control of the
northern gulf of mexico through the middle of next week resulting in
fairly benign weather over the coastal waters. Variable winds of 5
to 10 knots and seas of 2 feet or less can be expected through the
period. 32

Decision support
Dss code: blue.

Deployed: none.

Activation: none.

Activities: dss support for nohsep.

Decision support services (dss) code legend
green = no weather impacts that require action.

Blue = long-fused watch, warning, or advisory in effect or high
visibility event.

Yellow = heightened impacts with short-fused watch, warning or
advisory issuances; radar support.

Orange = high impacts; slight to moderate risk severe; nearby
tropical events; hazmat or other large episodes.

Red = full engagement for moderate risk of severe and or direct
tropical threats; events of national significance.

Preliminary point temps pops
Mcb 74 92 74 91 20 40 10 40
btr 75 91 75 91 20 40 10 40
asd 76 93 76 92 20 40 10 30
msy 78 92 77 92 20 40 10 30
gpt 77 90 77 90 20 40 10 40
pql 75 93 74 92 20 30 20 40

Lix watches warnings advisories
La... None.

Gm... None.

Ms... None.

Gm... None.

24 rr
32


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 1 mi48 min SSW 7 G 8.9 89°F 87°F1014.7 hPa
OSTF1 - Stennis Test Facility 15 mi76 min WSW 1.9 G 5.8 94°F 1015.3 hPa (-2.2)73°F
SHBL1 - 8761305 - Shell Beach, LA 36 mi54 min NW 5.1 G 6 90°F 91°F1015.3 hPa
DKCM6 - 8741501 - Dock C, Pascagoula, MS 41 mi48 min SW 5.1 G 8 88°F 1014.8 hPa
PNLM6 - 8741533 - Pascagoula NOAA Lab, MS 41 mi48 min 85°F
RARM6 - 8741094 - Range A rear, Pascagoula, MS 43 mi48 min SSW 5.1 G 7 88°F 1014.6 hPa
PTBM6 - 8741003 - Petit Bois Island, MS 44 mi48 min SE 5.1 G 9.9 88°F 1015.9 hPa
ULAM6 - 8741041 - Dock E. Port of Pascagoula, MS 44 mi48 min 86°F
NWCL1 - 8761927 - New Canal, LA 46 mi48 min NNW 2.9 G 4.1 91°F 87°F1015.3 hPa
GDXM6 - Grand Bay Reserve, MS 48 mi141 min SW 8.9 89°F 1016 hPa77°F

Wind History for Bay Waveland Yacht Club, MS
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bay St. Louis, Stennis International Airport, MS8 mi72 minNNW 610.00 miPartly Cloudy95°F73°F50%1014.9 hPa
Gulfport - Gulfport-Biloxi International Airport, MS15 mi73 minSSW 610.00 miPartly Cloudy91°F78°F66%1014.2 hPa
Keesler Air Force Base / Biloxi, MS23 mi68 minWSW 910.00 miFair89°F78°F71%1014.8 hPa

Wind History from HSA (wind in knots)
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Last 24hrSW4SW4SW4----------------------CalmCalm4W6W6W6W6NW6NW6NW6
1 day agoW5W8CalmCalm--------------------CalmCalm44SW6SW8W6SW4SW4SW4
2 days agoW4CalmCalmCalmCalm------------------CalmCalmCalmSW6S5W5W5S7W3Calm

Tide / Current Tables for Bay St. Louis, Mississippi
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Bay St. Louis
Click for Map
Fri -- 03:03 AM CDT     Moonrise
Fri -- 06:26 AM CDT     Sunrise
Fri -- 09:52 AM CDT     2.15 feet High Tide
Fri -- 05:10 PM CDT     Moonset
Fri -- 07:35 PM CDT     Sunset
Fri -- 09:06 PM CDT     0.08 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50.70.91.11.31.61.71.922.12.22.121.81.61.310.70.40.20.10.10.10.2

Tide / Current Tables for Cat Island (West Point), Mississippi
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Cat Island (West Point)
Click for Map
Fri -- 03:03 AM CDT     Moonrise
Fri -- 06:25 AM CDT     Sunrise
Fri -- 07:47 AM CDT     2.39 feet High Tide
Fri -- 05:09 PM CDT     Moonset
Fri -- 07:34 PM CDT     Sunset
Fri -- 07:55 PM CDT     0.01 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.811.31.61.82.12.22.42.42.32.221.71.41.10.80.50.30.1000.10.20.3

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 New Orleans/Baton Rouge, LA (18,4,5,8)
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Ground Weather Radar Station New Orleans/Baton Rouge, LA
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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.