Friday, July21, 2017 L-36.com


Marine Weather and Tides
St. Martin, 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 6:06AMSunset 7:57PM Friday July 21, 2017 5:52 PM CDT (22:52 UTC) Moonrise 4:14AMMoonset 6:23PM 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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GMZ532 Mississippi Sound- 400 Pm Cdt Fri Jul 21 2017
Tonight..Southwest winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Saturday..South winds 5 to 10 knots. Waves less than 1 foot. Dominant period 4 seconds. Waves or seas building to 1 to 2 feet. Dominant period 4 seconds in the afternoon. Chance of showers and Thunderstorms.
Saturday night..West winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Sunday..Southwest winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Sunday night..West winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Monday..West winds near 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Monday night..West winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Tuesday..West winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Tuesday night..West winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Wednesday..West winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Wednesday night..West winds 10 to 15 knots. Waves 1 to 2 feet. Slight chance of showers and Thunderstorms.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 400 Pm Cdt Fri Jul 21 2017
Synopsis..Surface high pressure will remain centered over the north central gulf into next week, however an upper level low pressure system will impact the central gulf coast region through the weekend.

7 Day Forecast for Marine Location Near St. Martin, MS
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location: 30.41, -88.9     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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Fxus64 klix 212122
afdlix
area forecast discussion
national weather service new orleans la
422 pm cdt Fri jul 21 2017

Short term (tonight through Monday)
The central gulf coast region will be under the influence of a
broad mid upper level low that will be moving west across the
northeast and north central gulf of mexico tonight, and towards
the western gulf coast region over the weekend. Higher moisture
content returned today with precipitable water (pw) values up to
the 1.9 to 2.0 inch range, and these values are expected to
persist through the weekend with some higher values between 2.0
and 2.25 inches south of lake pontchartrain on Saturday and across
the forecast area Sunday. This will support the forecast of good
scattered coverage of showers and thunderstorms Saturday with a
bit higher coverage expected on Sunday. Locally heavy rainfall and
some stronger thunderstorms with gusty winds and frequent
lightning will be possible. Temperatures are expected to trend
near to slightly below the seasonal averages.

High pressure is then expected to rebuild across the gulf of
mexico on Monday which should lower the rain chances substantially
and allow the temperatures to spike back to very warm levels.

Long term (Monday night through Friday night)
A general area of deep layer high pressure is expected to prevail
across the gulf, however the models indicate a series of
shortwaves moving southeast from the northern plains into the
northeast states. This may break off a lower latitude shortwave
trough weakness over the southeast states Tuesday that should be
progressive and move east towards the south atlantic coast by late
Wednesday, allowing deep layer high pressure to rebuild quickly.

This pattern will be generally be mostly dry (mainly isolated
convection at best) and very warm with above normal temperatures.

22 td

Aviation
Isolated to scattered showers and thunderstorms continue to
occasionally impact some of the terminals, but should start to
decrease in number going towards evening. Nocturnal convection
will be a possibility especially south of lake pontchartrain later
on in the night. Otherwise expectVFR conditions with afternoon
convection once again for Saturday. 13 mh

Marine
High pressure over the gulf of mexico is expected to result in
mostly south to west winds around 10 knots or less through the
weekend, then an occasional tightening of the pressure gradient
may cause winds to rise into the 10 to 15 knots range at times
over portions of the area early next week. 22 td

Decision support
Dss code: green.

Deployed: none.

Activation: none.

Activities: monitoring convective trends.

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 90 73 89 30 40 20 60
btr 75 91 75 89 30 50 20 60
asd 76 92 75 90 30 40 20 60
msy 77 91 76 90 30 40 20 60
gpt 76 91 77 89 30 40 20 50
pql 74 91 74 89 30 40 30 50

Lix watches warnings advisories
La... None.

Gm... None.

Ms... None.

Gm... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PNLM6 - 8741533 - Pascagoula NOAA Lab, MS 18 mi52 min 86°F
DKCM6 - 8741501 - Dock C, Pascagoula, MS 18 mi52 min S 8 G 9.9 87°F 1015.9 hPa (+0.0)
RARM6 - 8741094 - Range A rear, Pascagoula, MS 21 mi52 min SW 8 G 12 89°F 1015.4 hPa (-0.5)
ULAM6 - 8741041 - Dock E. Port of Pascagoula, MS 21 mi52 min 88°F
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 23 mi52 min N 11 G 15 81°F 90°F1016.2 hPa (-0.0)
PTBM6 - 8741003 - Petit Bois Island, MS 25 mi52 min SSW 11 G 12 86°F 1016.3 hPa (-0.7)
GDXM6 - Grand Bay Reserve, MS 26 mi67 min SSW 8.9 87°F 1016 hPa76°F
OSTF1 - Stennis Test Facility 38 mi62 min N 1.9 G 3.9 77°F 1017 hPa (-0.8)77°F
KATA1 - Katrina Cut, AL 38 mi82 min S 12 86°F 1015.6 hPa
CRTA1 - Cedar Point, AL 41 mi82 min SSW 13 87°F 1015.6 hPa
DPIA1 - Dauphin Island, AL 45 mi52 min S 8 G 12 87°F 1015.4 hPa (-0.6)
MBLA1 - Middle Bay Light, AL 47 mi82 min S 13 86°F 1015.6 hPa
MCGA1 - 8736897 - Coast Guard Sector Mobile, AL 48 mi52 min SW 5.1 G 8.9 88°F 86°F1016.3 hPa (-0.6)
FMOA1 - 8734673 - Fort Morgan, AL 48 mi52 min SSW 13 G 15 86°F
PTOA1 49 mi52 min 89°F 74°F

Wind History for West Pier, Port of Gulfport, MS
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Keesler Air Force Base / Biloxi, MS2 mi1.9 hrsWNW 310.00 miThunderstorm in Vicinity88°F77°F72%1016.2 hPa
Gulfport - Gulfport-Biloxi International Airport, MS9 mi59 minW 510.00 miThunderstorm in Vicinity77°F73°F90%1015.5 hPa
Moss Point - Trent Lott International Airport, MS20 mi59 minW 410.00 miFair90°F75°F63%1015.8 hPa

Wind History from BIX (wind in knots)
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Last 24hrSW7SW6CalmCalmCalmW3CalmCalmCalmCalmSE4CalmCalmCalmCalmCalmNE5SE8S4S3S10S8W3NE5
1 day agoS7SW6SW4SW5SW3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNE3CalmCalmNE3SW7SW7SW8SW9SE7
2 days agoSW5SW5S6S4S4S4S7S6SW3N3CalmN3CalmCalmNE3CalmCalmCalmS6S9S6SW8SW7SW8

Tide / Current Tables for Biloxi, Biloxi Bay, Mississippi
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Biloxi
Click for Map
Fri -- 04:14 AM CDT     Moonrise
Fri -- 06:07 AM CDT     Sunrise
Fri -- 09:35 AM CDT     2.08 feet High Tide
Fri -- 06:22 PM CDT     Moonset
Fri -- 07:56 PM CDT     Sunset
Fri -- 08:11 PM CDT     -0.42 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.40.60.91.11.31.51.71.822.12.121.91.71.310.60.2-0.1-0.3-0.4-0.4-0.3-0.1

Tide / Current Tables for Ocean Springs, Mississippi
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Ocean Springs
Click for Map
Fri -- 04:14 AM CDT     Moonrise
Fri -- 06:07 AM CDT     Sunrise
Fri -- 09:18 AM CDT     1.91 feet High Tide
Fri -- 06:22 PM CDT     Moonset
Fri -- 07:43 PM CDT     -0.46 feet Low Tide
Fri -- 07:55 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20.50.70.91.11.31.51.71.81.91.91.81.61.310.70.3-0.1-0.3-0.4-0.5-0.4-0.3-0.2

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 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.