Wednesday, August5, 2020
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Marine Weather and Tides
Pascagoula, 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 6:14AMSunset 7:46PM Wednesday August 5, 2020 11:29 AM CDT (16:29 UTC) Moonrise 9:25PMMoonset 7:58AM Illumination 97% Phase: Waning Gibbous; Moon at 16 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- 954 Am Cdt Wed Aug 5 2020
Rest of today..North winds 5 to 10 knots becoming southwest in the afternoon. Waves 1 foot or less. Dominant period 4 seconds.
Tonight..West winds 5 to 10 knots becoming northwest after midnight. Waves 1 to 2 feet. Dominant period 4 seconds.
Thursday..North winds 5 to 10 knots becoming south in the afternoon. Waves 1 foot or less. Dominant period 4 seconds.
Thursday night..Southwest winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Friday..Southwest winds 5 to 10 knots becoming south in the afternoon. Waves 1 foot or less. Dominant period 4 seconds.
Friday night..Southwest winds 5 to 10 knots becoming west after midnight. Waves 1 to 2 feet. Dominant period 4 seconds.
Saturday..Northwest winds near 5 knots becoming south in the afternoon. Waves 1 foot or less. Dominant period 4 seconds. Slight chance of showers and Thunderstorms in the afternoon.
Saturday night..West winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Sunday..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 through the day.
Sunday night..West winds 5 to 10 knots. Waves less than 1 foot. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 954 Am Cdt Wed Aug 5 2020
Synopsis..High pressure will prevail across the northern gulf with calm conditions expected through this weekend and into next week.


7 Day Forecast for Marine Location Near Pascagoula, MS
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location: 30.34, -88.53     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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FXUS64 KLIX 050804 AFDLIX

Area Forecast Discussion National Weather Service New Orleans LA 304 AM CDT Wed Aug 5 2020

SHORT RANGE (Today through Friday Night).

Taking a quick glance at the synoptic overview across the CONUS shows the small mid to upper-level impulse that aided in helping develop a few thunderstorms across coastal SE LA yesterday afternoon not moving much but has drifted ever so slightly to the east, with a prominent NW flow regime setting up across the lower MS valley region. In this type of upper-level flow, focus shifts upstream to any potential vort max or MCS/cluster of storms and how well they can propagate southeastward to our area. Taking an in-depth analysis with RAP/NAM guidance does illustrate a H5 vort max and associated cluster of storms ongoing across the Red River Valley region of OK/TX around 12Z today. Guidance is trying to suggests this complex to persist (somewhat) well into central and eventual south-central LA later today - where SPC has now a MRGL risk of severe weather west of our CWA border. The path and location of the vort max center in conjunction with the storm motion/upper-level flow keeps any severe risk to our west. However, some light seabreeze development along the coastal areas of SE LA will help ignite spotty thunderstorms this afternoon. CAM's hint at much more widespread coverage generally for areas along and south of I-10/12 - moreso west of the MS river. Yesterday's high bias in the HRRR blended with the NBM worked well, and have continued using this method for today. Once again, ample dry air in the H7 layer and above will owe to dry air entrainment in thunderstorms that develop, along with a well mixed PBL leading to high DCAPE values of around 1100-1300J/kg. Damaging winds will be the main threats today, especially if any convection attempts to organize into a broken line right along the SE LA coastline. WMSI/WindEx downburst parameters are anomalously high in this region looking at forecast HRRR soundings for Grand Isle, LA after 18Z which will warrant focus in this area later today. Additionally, continuing to help nudge some of the afternoon surface Td's down during peak afternoon mixing today as drier air tries to peak into the northern half of the CWA (moreso along the southern MS counties).

Not much changing by Thursday, as the weak trough just to our east eventually flattens out as the ridge across the south-central US builds and pushes east just slightly. This will lead to slightly less coverage in storms, but with perhaps a few isolated storms for near coastal areas. The ridge takes over by Friday as indicated by increasing H5 level heights, sending us back into more of a typical summertime pattern with southerly Gulf return flow developing. Cant rule out an isolated hit-or-miss shower or storm in the afternoon on Friday, but many people will be staying dry. KLG

LONG RANGE (Saturday through Wednesday).

Going into the weekend, the pattern will be in a state of flux as the stubborn upper trough continues to flatten and slowly shift to the east coast. Moisture will be on the increase as surface high pressure slides eastward but with just enough ridging still in place, Saturday looks to only see widely scattered afternoon showers and storms, mainly across more coastal areas where the seabreeze can provide a convective focus. The lack of more typical afternoon convective coverage should allow temperatures to persist above normal - especially across inland areas where highs could top out in the mid 90s. Closer to the coast, lower 90s seem more reasonable.

Another thing we'll have to watch is the afternoon heat index values. Saturday's heat index readings currently look to peak in the 100 to 105 degree range. With continued increases in moisture, though, Sunday may see borderline heat advisory criteria in some areas. The caveat on Sunday is that rain chances will be on the rise, so scattered showers and storms could help cool down the afternoon temperatures a bit - especially in areas that get a good outflow from any convection.

By the start of the work week, upper level pattern will be generally flat and the local area will generally be on the western periphery of low level high pressure. This set up should allow for a return to more typical summertime conditions with highs around 90 and scattered afternoon convection.

95/DM

AVIATION.

UPDATED 0802Z.

Look for VFR conditions for all area terminals through the forecast period. Only exception will be for some scattered TSRA developing later today (after 19-20Z) for terminals along and south of I-10/12. Will introduce VCTS in terminals in these areas due to the scattered nature of the storms later today. Any one storm in these areas may contain locally strong downdraft winds/turbulence as well as periodic reductions in visibility due to heavy rainfall. Otherwise, this activity will diminish shortly after sunset with VFR prevailing for all locations tomorrow evening and onward. KLG

MARINE.

Relatively calm conditions will persist all coastal waters through the rest of the week and even into the weekend thanks to weak high pressure in control of the Gulf. Some coastal t-storms will be possible today and Thursday which may contain strong gusty surface winds at times. Otherwise, we return to a more persistent onshore flow Friday and into the weekend/through next week with no impactful hazardous weather expected.

PRELIMINARY POINT TEMPS/POPS. MCB 92 71 92 73 / 0 0 10 0 BTR 93 72 94 73 / 20 0 10 0 ASD 94 73 94 75 / 20 0 20 0 MSY 94 77 93 77 / 20 0 20 0 GPT 92 75 91 77 / 20 0 20 0 PQL 95 73 94 75 / 10 10 20 0

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 3 mi59 min 84°F
GDXM6 - Grand Bay Reserve, MS 6 mi104 min Calm 84°F 1016 hPa75°F
PTBM6 - 8741003 - Petit Bois Island, MS 9 mi59 min N 1.9 G 2.9 1016 hPa
KATA1 - Katrina Cut, AL 18 mi89 min Calm 1015.6 hPa (+1.0)
42067 - USM3M02 20 mi89 min NNW 1.9 G 3.9 87°F 1014.6 hPa (+1.0)
CRTA1 - Cedar Point, AL 21 mi59 min Calm 85°F 1015.2 hPa
DPIA1 - Dauphin Island, AL 25 mi149 min NNE 5.1 G 6 82°F 1015 hPa (+1.1)
MBPA1 27 mi71 min 82°F 78°F
FMOA1 - 8734673 - Fort Morgan, AL 28 mi59 min NW 4.1 G 5.1 1015.8 hPa
MBLA1 - Middle Bay Light, AL 28 mi89 min NW 5.1 84°F 1014.9 hPa (+1.0)
MCGA1 - 8736897 - Coast Guard Sector Mobile, AL 33 mi59 min WNW 1.9 G 5.1 87°F1015.8 hPa
PTOA1 35 mi71 min 84°F 75°F
OBLA1 - 8737048 - Mobile State Docks, AL 36 mi59 min 87°F1015.7 hPa
BSCA1 - Bon Secour, AL 37 mi89 min Calm 85°F 1015.6 hPa (+1.4)
WBYA1 38 mi59 min 86°F
WKXA1 - Weeks Bay Reserve, AL 38 mi104 min 88°F 1015 hPa73°F
MHPA1 - Meaher Park, AL 39 mi59 min W 1 82°F 1015.2 hPa
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 42 mi59 min NNE 4.1 G 4.1 84°F1016.4 hPa

Wind History for Range A Rear, Port of Pascagoula, MS
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Moss Point - Trent Lott International Airport, MS8 mi36 minNNW 610.00 miFair92°F73°F56%1015.7 hPa
Keesler Air Force Base / Biloxi, MS22 mi33 minWNW 510.00 miFair89°F72°F59%1016.2 hPa

Link to 5 minute data for KPQL

Wind History from PQL (wind in knots)
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Last 24hr44S7SW7SW8
G16
4SW73CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN4N3N4NW6
1 day agoCalmN6NE553N6CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm3NW4NW4
2 days ago3SW55S5S9S4SW4SW3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN3N3CalmCalm

Tide / Current Tables for Pascagoula Point, Mississippi Sound, Mississippi (sub)
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Point of Pines, Bayou Cumbest, Mississippi
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map
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wmap_A
GEOS Local Image of Southeast    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 (12,3,4,5)
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Ground Weather Radar Station Mobile, AL
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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.