Saturday, March28, 2020
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Marine Weather and Tides
Pass Christian, 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 6:48AMSunset 7:14PM Saturday March 28, 2020 12:20 PM CDT (17:20 UTC) Moonrise 9:25AMMoonset 11:10PM Illumination 21% Phase: Waxing Crescent; Moon at 5 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- 947 Am Cdt Sat Mar 28 2020
Rest of today..South winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
Tonight..South winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
Sunday..Southwest winds near 10 knots becoming northwest late in the morning, then becoming southeast late in the afternoon. Waves 1 to 2 feet. Dominant period 4 seconds.
Sunday night..East winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Monday..Southeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Monday night..South winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms after midnight.
Tuesday..Southwest winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Showers likely and slight chance of Thunderstorms.
Tuesday night..Northwest winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Slight chance of showers in the evening.
Wednesday..North winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
Wednesday night..Northeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 947 Am Cdt Sat Mar 28 2020
Synopsis..High pressure will continue to pull away from the area today. A cold front is expected to stall along the coast tonight and dissipate on Sunday. A stronger low pressure system and cold front will then affect the coastal waters Monday into Tuesday. High pressure is expected to build over the waters on Wednesday.


7 Day Forecast for Marine Location Near Pass Christian city, 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 280845 AFDLIX

Area Forecast Discussion National Weather Service New Orleans LA 345 AM CDT Sat Mar 28 2020

SHORT TERM. Although winds will keep the boundary layer mixed, compressional and insolation heating ahead of slow moving cold front should be able to kick temps into the upper 80s today for most along with a few 90F thrown in for good measure. Sluggish cold front will being to push its way into the area early Sunday morning and stall along the coast by noon Sunday. The two things that will be noticed will be a thin line of light showers along the front and cooler temps. The front will become a warm front Monday morning and quickly move north bringing the heat and humidity back to the area along with a few showers.

LONG TERM. Next cold front still moves through Tuesday with cooler yet actually near normal temperatures Wed through the remainder of the week and possibly rain returning again Friday and into the weekend.

Everything still looks on track for our system to push through Tuesday, maybe a touch slower. The track of the mid level low hasn't changed but the sfc low has trended farther south with the cold front still expected to push through late morning/midday Tuesday. Prior to the cold front coming through we will be in the warm sector and with that there will be some instability to work with however it is marginal given the time of day. MLCAPE values only expected around 500 J/kg and mid level lapse rates may be around 6-6.5 C/km. Main thing working for this system will be the forcing and lift. First, it is a pretty decent cold front moving in lift. Second, with a deep closed mid level low moving through the Mid MS Valley hghts falls will be rather decent, on the order of 6-7 dm from 6-18z. Third, the mid level jet may pass just to the north of the area providing a rather strong punch, h5 winds go from near 50kts at 6z to around 75kts before 18z. This all suggest we should see showers and some thunderstorms overnight Monday and through Tuesday morning.

After the front moves through much quieter and cooler relatively. Yes it will be cooler than what we have seen for the past week but the temperatures will be slightly below normal to near normal for the most part Wednesday and Thursday.

Heading into the end of the week it looks like rain may return. There is some uncertainty in the models however the ensembles are suggesting a disturbance moving through the Gulf Coast states. Agree with previous forecaster that we should see moisture increase with cloud cover first and then showers expanding across the region during the day Friday. Better rain chances could hold off till Saturday. /CAB/

AVIATION. Ceilings have started trending downward over the last 3 hours, with KMCB reporting IFR ceilings at FL006. Likely to see several others drop into the high end of IFR or low end MVFR over the next couple of hours. Winds have increased a bit, with most reporting 10-12 knots, which should preclude any fog affecting terminals. Expect improvement back to VFR by about 15z. Expect lower ceilings to move into the area again near the cold front, but at this time, any frontal passage appears to be beyond 29/06z for just about all terminals, and several southeastern terminals probably won't see the passage until after 29/12z. 35

MARINE. Caution statement will remain through at least 10am today as winds remain southerly at 15-20kt. These winds are expected to persist through much of today before beginning to relax back into the 5 to 10 knot range tonight and Sunday. Seas will range from 3 to 6 feet due to these stronger onshore winds. Another low pressure system will then bring an increase in southerly flow Monday into Monday night. Winds could increase back into small craft exercise caution range of 15 to 20 knots and seas of 3 to 6 feet could return. A decent cold front will slide through the waters on Tuesday, and a period of stronger northerly flow near 20 knots could occur Tuesday night into Wednesday morning.

DECISION SUPPORT. DSS code: Blue. Deployed: None. Activation: None. Activities: Forecast support for COVID-19 outdoor test sites. River Flood Warnings

PRELIMINARY POINT TEMPS/POPS. MCB 86 68 80 64 / 0 40 10 10 BTR 88 68 80 64 / 0 30 20 10 ASD 88 69 83 65 / 0 10 20 10 MSY 88 72 82 70 / 0 10 20 10 GPT 82 71 80 67 / 10 0 10 10 PQL 85 70 84 65 / 10 10 10 10

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
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 14 mi57 min S 14 G 18 79°F 78°F1015.7 hPa
42067 - USM3M02 30 mi81 min S 9.7 G 14 76°F 4 ft1015.6 hPa (+1.7)
PNLM6 - 8741533 - Pascagoula NOAA Lab, MS 31 mi57 min 75°F
PTBM6 - 8741003 - Petit Bois Island, MS 32 mi51 min S 12 G 14 78°F 1016.2 hPa
GDXM6 - Grand Bay Reserve, MS 38 mi96 min S 11 78°F 1017 hPa73°F
SHBL1 - 8761305 - Shell Beach, LA 38 mi51 min 80°F 79°F1015.2 hPa
KATA1 - Katrina Cut, AL 48 mi51 min S 13 76°F 1016.6 hPa

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 mi28 minS 12 G 178.00 miOvercast81°F71°F72%1015.1 hPa
Keesler Air Force Base / Biloxi, MS18 mi85 minS 1110.00 miPartly Cloudy80°F72°F78%1016.2 hPa
Bay St. Louis, Stennis International Airport, MS21 mi31 minSSE 87.00 miMostly Cloudy81°F73°F79%1014.9 hPa

Link to 5 minute data for KGPT

Wind History from GPT (wind in knots)
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2 days agoW5S7S9S9S8SW7SW4SW3SW3CalmCalmCalmCalmW3NW3W4W4NW4CalmCalmN4CalmS7SE7

Tide / Current Tables for Cat Island, Mississippi
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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 Ship Island, Mississippi Sound, 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 (13,3,4,5)
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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.