Monday, July13, 2020
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Marine Weather and Tides
Ocean Springs, MS

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:01AMSunset 8:00PM Monday July 13, 2020 6:43 AM CDT (11:43 UTC) Moonrise 12:54AMMoonset 1:44PM Illumination 44% Phase: Third Quarter Moon; Moon at 23 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 Am Cdt Mon Jul 13 2020
Today..Southwest winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Tonight..West winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Tuesday..Southwest winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms through the day.
Tuesday night..West winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Wednesday..Southwest winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms through the day.
Wednesday night..West winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Thursday..West winds 5 to 10 knots becoming south in the afternoon. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Thursday night..Southwest winds 5 to 10 knots becoming northwest after midnight. Waves 1 foot or less. Dominant period 4 seconds.
Friday..North winds near 5 knots becoming southeast in the afternoon. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Friday night..South winds 5 to 10 knots. Waves less than 1 foot. Dominant period 4 seconds.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 351 Am Cdt Mon Jul 13 2020
Synopsis..High pressure will remain settled over the central gulf waters through the week.


7 Day Forecast for Marine Location Near Ocean Springs, MS
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location: 30.39, -88.8     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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FXUS64 KLIX 130857 AFDLIX

AREA FORECAST DISCUSSION National Weather Service New Orleans LA 357 AM CDT Mon Jul 13 2020

SHORT TERM. An upper level ridge is still centered over New Mexico/Arizona but with troughs now on its east and northwest sides. The CWA sits on the eastern edge of the ridge with a trough on eastern remainder of the US. A weak ripple on the eastern trough has helped to maintain convection through the overnight hours along the Mississippi coast. Models indicate that this activity will gradually weaken as it moves offshore over the next several hours.

Stifling heat continues across the region as upper 70 to lower 80 dewpoints remain in place while above normal temps persist due to the upper level ridge centered west of the area. Guidance brings high temps back up into the mid/upper 90 high temps, although slightly cooler than yesterday. Those temps with similar dewpoints will support 108 to maybe 118 degree heat indicies. The core of the excessively high heat index values of 113+ looks to be more confined to the New Orleans Metro. In fact, observations across the city show that there just hasn't been any overnight relief to the heat with heat indices currently in the mid to upper 90s. Thus, will be adding an excessive heat warning for those parishes. A heat advisory will be in effect for the rest of the CWA.

Relief from rain is looking a bit better today than previous days as models suggest the strong ridge may be starting to weaken from the upper trough coming in the Pacific Northwest and the current impulse moving through the southeast US. The POPs for today are mostly a combo of the GFS, NBM and HRRR which have 30-40% south of a line from Gonzales to New Orleans and 20% elsewhere. As mentioned in previous days, inverted-v lower atmosphere profile and dry air aloft are conducive for strong/damaging winds.

Lows will struggle to reach the upper 70s for many locations again tonight. New Orleans metro still in the 80 to 82 degree range (83-85 along the Lakefront). Thus, continue to increase forecast overnight lows in New Orleans metro by a couple degrees above the NBM guidance to account for that local climatology.

The trend of slight improvements in heat continues Tuesday and Wednesday as the upper ridge to the west weakens. Improvements are relative because it'll still be hot with heat advisory conditions likely in place. Its not until Wednesday that we may finally see heat indicies under 108 with regularity. At the same time, and part of the help, thunderstorm chances will be on the rise.

MEFFER

LONG TERM. Well things continue to look like we will transition into a more typical environment. So instead of melting before you walk out the door we move into the more normal Summer days of just needing to change clothes 5 minutes after walking outside but hey beggars can't be choosers. Still looks like rain chances will increase for the latter half of the week. Pretty good agreement in the model world so will only make rather small adjustments to the forecast.

We still anticipate the ridge to expand to the east-northeast across the Mid MS Valley and into the TN Valley, eventually putting the region under easterly flow. With that we will obviously see easterly waves which will likely bring with them rain. The increase in rain will also be accompanied by greater cloud coverage. In addition to that we also look to have slightly cooler LL temps so the combination of all of these should keep highs in the lower to mid 90s. Now again it will still be somewhat miserable as the humidity is not going to go anywhere so until showers and thunderstorms develop it will be quite muggy with heat indices climbing into the lower to mid 100s each day. /CAB/

MARINE. A few showers and storms are lurking in the coastal waters off the MS coast this morning with more extensive coverage off Mobile Bay. The waters east of the MS River may be a region of active weather over the next several days as upper impulses moving along the fringe of large high pressure ridge situated over the center of the nation move offshore. Otherwise, relatively light winds and low seas expected outside of convection. 24/RR

AVIATION. VFR conditions at all terminals this morning, prevailing for much of the day. There is VCTS at KPQL (non-TAF site) currently, and will likely be the case at KGPT and possibly KASD later this morning. Other locations to have brief VCTS in the mid to late afternoon hours. 24/RR

DSS. CODE: Blue Activities: Critical DSS sites support NASA SLS support Excessive Heat Warning Marginal risk severe storms

PRELIMINARY POINT TEMPS/POPS. MCB 94 76 94 77 / 20 10 30 0 BTR 97 77 95 77 / 20 10 30 0 ASD 95 77 95 77 / 20 10 40 0 MSY 97 82 97 81 / 30 10 40 0 GPT 92 78 91 79 / 30 10 30 10 PQL 95 77 94 76 / 30 10 30 10

LIX WATCHES/WARNINGS/ADVISORIES. LA . Heat Advisory from 10 AM this morning to 8 PM CDT this evening for LAZ034>037-039-040-046>050-056-065>072.

Excessive Heat Warning from 10 AM this morning to 8 PM CDT this evening for LAZ057>064.

GM . None. MS . Heat Advisory from 10 AM this morning to 8 PM CDT this evening for MSZ068>071-077-080>082.

GM . None.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PNLM6 - 8741533 - Pascagoula NOAA Lab, MS 13 mi55 min 83°F
GDXM6 - Grand Bay Reserve, MS 20 mi118 min N 6 76°F 1014 hPa76°F
PTBM6 - 8741003 - Petit Bois Island, MS 20 mi55 min SSW 15 G 17 82°F 1011.9 hPa
42067 - USM3M02 26 mi103 min SSW 14 G 18 83°F 3 ft1011.2 hPa (-0.3)
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 28 mi55 min WSW 7 G 9.9 85°F 86°F1012 hPa
KATA1 - Katrina Cut, AL 32 mi73 min NNE 13 -39°F 1012.2 hPa
CRTA1 - Cedar Point, AL 35 mi73 min NNW 4.1 78°F 1012.2 hPa
MBPA1 39 mi55 min 78°F 78°F
DPIA1 - Dauphin Island, AL 40 mi163 min S 6 G 8 81°F 1011.6 hPa
MBLA1 - Middle Bay Light, AL 42 mi43 min SE 7 80°F 1011.9 hPa (+0.3)
FMOA1 - 8734673 - Fort Morgan, AL 43 mi61 min N 12 G 14 78°F 1012.8 hPa
MCGA1 - 8736897 - Coast Guard Sector Mobile, AL 43 mi55 min WSW 2.9 G 4.1 85°F1012.5 hPa
PTOA1 45 mi55 min 78°F 76°F
OBLA1 - 8737048 - Mobile State Docks, AL 46 mi55 min 78°F 85°F1012.3 hPa

Wind History for Dock C, Port of Pascagoula, MS
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Keesler Air Force Base / Biloxi, MS7 mi1.8 hrsE 410.00 miOvercast79°F75°F89%1012.1 hPa
Gulfport - Gulfport-Biloxi International Airport, MS14 mi50 minSE 310.00 miOvercast83°F75°F79%1011.5 hPa
Moss Point - Trent Lott International Airport, MS15 mi50 minN 010.00 miFair77°F73°F90%1012 hPa

Link to 5 minute data for KBIX

Wind History from BIX (wind in knots)
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Last 24hrCalmCalmCalmCalmSW6SW9S9SW10SW12SW12W11SW14W10SW10CalmE11S6S5S4S12
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1 day agoCalmN4N4N3NE7N4NW5N4NW5N5N5N4N3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
2 days agoW4CalmNW3N5N4NE6N4NW3CalmSW4SW6SW7SW4SW6CalmCalmCalmCalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Biloxi, Biloxi Bay, Mississippi
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Biloxi
Click for Map
Mon -- 12:54 AM CDT     Moonrise
Mon -- 06:02 AM CDT     Sunrise
Mon -- 07:16 AM CDT     1.35 feet High Tide
Mon -- 01:44 PM CDT     Moonset
Mon -- 06:19 PM CDT     0.71 feet Low Tide
Mon -- 07:59 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90.911.11.21.31.31.31.31.31.21.110.90.90.80.80.70.70.70.70.80.80.8

Tide / Current Tables for Pascagoula River entrance, Mississippi
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Pascagoula River entrance
Click for Map
Mon -- 12:53 AM CDT     Moonrise
Mon -- 06:01 AM CDT     Sunrise
Mon -- 07:48 AM CDT     1.15 feet High Tide
Mon -- 01:43 PM CDT     Moonset
Mon -- 05:57 PM CDT     0.61 feet Low Tide
Mon -- 07:58 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.80.80.911.11.11.11.21.11.110.90.80.70.70.60.60.60.60.60.70.70.7

Weather Map
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wmap_A
GEOS Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for New Orleans/Baton Rouge, LA (7,2,3,4)
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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 numerous 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.