Tuesday, March2, 2021
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Marine Weather and Tides
Pass Christian, MS

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:19AMSunset 5:57PM Tuesday March 2, 2021 8:50 PM CST (02:50 UTC) Moonrise 10:48PMMoonset 9:41AM Illumination 80% Phase: Waning Gibbous; Moon at 19 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- 356 Pm Cst Tue Mar 2 2021
.small craft advisory in effect until 3 am cst Wednesday...
Tonight..North winds 15 to 20 knots with frequent gusts to 25 knots. Waves 3 to 5 feet. Dominant period 4 seconds. Slight chance of showers early in the evening.
Wednesday..North winds 10 to 15 knots. Waves 2 to 3 feet. Dominant period 4 seconds.
Wednesday night..North winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Thursday..Northeast winds 5 to 10 knots becoming east early in the afternoon, then becoming southwest late in the afternoon. Waves 1 to 2 feet subsiding to less than 1 foot. Dominant period 4 seconds.
Thursday night..Southwest winds near 5 knots becoming west late in the evening, then becoming northeast after midnight. Waves 1 foot or less. Dominant period 4 seconds.
Friday..East winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers in the afternoon.
Friday night..Northeast winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Chance of showers.
Saturday..North winds 15 to 20 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
Saturday night..Northeast winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
Sunday..East winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
Sunday night..East winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 356 Pm Cst Tue Mar 2 2021
Synopsis..A low pressure system will move through the northeast gulf tonight. High pressure will build in from the northwest on tonight and Wednesday and move east across the region Thursday and early Friday, then another weak low pressure system is expected to move through the north gulf on Friday night and Saturday morning.


7 Day Forecast for Marine Location Near Pass Christian, MS
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location: 30.22, -89.11     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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FXUS64 KLIX 030134 AFDLIX

Area Forecast Discussion National Weather Service New Orleans LA 734 PM CST Tue Mar 2 2021

. EVENING UPDATE .

Performed a gridded update this evening to reflect radar/obs trends. Main focus ongoing currently is a light band of showers/drizzle parading east across the area. This band is along a 850mb trough/low-level front and associated PVA helping to squeeze out lingering moisture in the low to mid levels. CAM's are not picking up on this much due to how light the returns currently are on radar, but observations are coming in at -RA and prompts enough coverage to manually introduce in the grids through 06Z. However, recent trends since 00Z indicate a downward trend in intensity, still look for some light showers to continue to the east to right before midnight tonight.

Otherwise, low clouds will persist in the wake of this feature tonight, with strong CAA and northerly winds. The big question is how long will low clouds stick around into tomorrow, which may prevent temperatures from warming to suggested model guidance. Using 925mb as a good proxy for low cloud thickness after "some" subtle afternoon mixing (CAM indicating LCL's roughly in this region) places higher LCL RH along and east of I-55. Ofcourse, little 925mb RH is evident in the AM as ceilings/LCL's are below this layer, with lifting likely due to aforementioned mixing by the PM. Will introduce a slight nudge up in cloud cover for now, but not overcast, with thickest cloud potential south of I-10/12 and east of I-55 to marine areas, less clouds to the north. Have reflected this in MaxT's by averaging 2-4 degrees below the blends which places the southshore and coastal MS in the upper 50's. Can't go farther than this due to lack of confidence, but overall still expect a chilly day tomorrow with some intervals of clouds and staying dry. Surface high pressure settles in Wednesday night and into Thursday morning, with maximized radiative cooling processes likely and have once again pulled lows a few degrees below blends with widespread upper 30's likely along/north of I-10/12 to the 40's south to the coast. KLG

PREV DISCUSSION . /issued 415 PM CST Tue Mar 2 2021/

SHORT TERM (Tonight through Friday) .

The shortwave trough will continue to move east across the lower Mississippi valley tonight with the associated surface low moving east-northeast across the north central to northeast Gulf coast. The fairly widespread rain will end over eastern/offshore areas this evening. Drier and continued cool conditions will prevail with the sun returning during late morning to midday hours on Wednesday as high pressure builds in behind the front and low pressure area. The surface high will continue to build in on Thursday with a modifying airmass allowing high temperatures to push back up near normal after a cooler than normal period through Wednesday night. The next potent shortwave trough will move southeast through the central Gulf coast region late Friday, Friday night and early Saturday morning. The models depict generally light to moderate rainfall amounts with this system mainly late Friday and Friday night and very few if any thunderstorms.

LONG TERM (Saturday through Tuesday) .

Surface high pressure will be in control with dry and mild weather expected over the weekend. As the surface high shifts east, the next system that may impact our region will be a shortwave trough moving through the western states early in the week. The mentionable rain chances at this point look beyond this forecast period. Temperatures should be near to slightly above normal and rather pleasant for early March.

AVIATION .

00Z TAF FORECAST .

Expect areas of light SHRA and drizzle to persist early this evening, with low CIG's and periodic lower VIS leading to MVFR/IFR conditions. Expect CIG's to continue to lower through the night, with primarily IFR for most terminals through daybreak Wednesday. Low clouds will be slow to break up by Wednesday morning, with a slow clearing expected from north to south. Where clouds remain tight, expect MVFR conditions to persist, otherwise VFR conditions will slowly spread south with SKC and light northerly surface winds. All areas clear out through Wednesday night with prevailing VFR conditions. KLG

MARINE .

Strong north winds near or over 20 knots with higher gusts will continue into tonight. The Small Craft Advisories will remain the same as from the mid morning update. Winds and waves will subside on Wednesday through Thursday as high pressure builds into the region. Yet another weak low pressure system will move across the north Gulf late Friday and Friday night brining another period of moderate to stronger winds and increased wave heights late Friday night through the weekend.

PRELIMINARY POINT TEMPS/POPS. MCB 37 60 36 69 / 0 0 0 0 BTR 38 61 38 69 / 0 0 0 0 ASD 37 58 37 69 / 20 0 0 0 MSY 43 58 46 68 / 20 0 0 0 GPT 38 58 39 67 / 20 0 0 0 PQL 39 58 37 68 / 30 0 0 0

LIX WATCHES/WARNINGS/ADVISORIES. LA . None. GM . Small Craft Advisory until 3 AM CST Wednesday for GMZ532-534-536- 538-550-552-555-557-570-572-575-577.

Small Craft Advisory until 10 PM CST this evening for GMZ530.

MS . None. GM . Small Craft Advisory until 3 AM CST Wednesday for GMZ534-536-538- 550-552-555-557-570-572-575-577.




Weather Reporting Stations
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Wind History for Gulfport Outer Range, MS
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Gulfport - Gulfport-Biloxi International Airport, MS13 mi58 minN 10 G 2010.00 miOvercast47°F43°F86%1018.6 hPa
Keesler Air Force Base / Biloxi, MS18 mi55 minNNE 13 G 2110.00 miOvercast47°F44°F89%1018.9 hPa
Bay St. Louis, Stennis International Airport, MS21 mi61 minN 127.00 miOvercast46°F45°F93%1019.3 hPa

Link to 5 minute data for KGPT

Wind History from GPT (wind in knots)
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Tide / Current Tables for Cat Island (West Point), Mississippi
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Cat Island (West Point)
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Tue -- 02:15 AM CST     0.57 feet High Tide
Tue -- 06:21 AM CST     Sunrise
Tue -- 06:45 AM CST     0.53 feet Low Tide
Tue -- 08:41 AM CST     Moonset
Tue -- 12:38 PM CST     0.76 feet High Tide
Tue -- 05:56 PM CST     Sunset
Tue -- 09:48 PM CST     Moonrise
Tue -- 11:06 PM CST     0.06 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Tide / Current Tables for Ship Island Pass, Mississippi
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Ship Island Pass
Click for Map
Tue -- 02:17 AM CST     0.57 feet High Tide
Tue -- 06:08 AM CST     0.53 feet Low Tide
Tue -- 06:20 AM CST     Sunrise
Tue -- 08:40 AM CST     Moonset
Tue -- 12:40 PM CST     0.77 feet High Tide
Tue -- 05:55 PM CST     Sunset
Tue -- 09:48 PM CST     Moonrise
Tue -- 10:29 PM CST     0.06 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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