Wednesday, January23, 2019

Marine Weather and Tides
Pascagoula, MS

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:48AMSunset 5:23PM Wednesday January 23, 2019 12:40 PM CST (18:40 UTC) Moonrise 9:28PMMoonset 9:53AM Illumination 92% Phase: Waning Gibbous; Moon at 18 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- 408 Am Cst Wed Jan 23 2019
.small craft exercise caution through noon today...
.small craft advisory in effect from noon cst today through late tonight...
Today..South winds 15 to 20 knots becoming northwest 20 to 25 knots late. Waves 3 to 5 feet. Dominant period 4 seconds. Showers and chance of Thunderstorms.
Tonight..Northwest winds 20 to 25 knots. Waves 3 to 5 feet. Dominant period 4 seconds. Showers likely early in the evening, then slight chance of showers late in the evening.
Thursday..Northwest winds 10 to 15 knots. Waves 2 to 3 feet. Dominant period 4 seconds.
Thursday night..North winds near 10 knots. Waves 2 feet. Dominant period 4 seconds.
Friday..North winds 5 to 10 knots becoming west late in the afternoon. Waves 1 foot or less. Dominant period 4 seconds.
Friday night..South winds near 5 knots becoming east after midnight. Waves less than 1 foot. Dominant period 4 seconds.
Saturday..East winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Saturday night..North winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Sunday..Northwest winds near 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Sunday night..West winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
GMZ500 Synopsis Sw Pass Mississippi River To Atchafalaya River-921 Am Cst Wed Jan 23 2019
Synopsis..Another cold front will push through the coastal waters late Wednesday. High pressure will settle for a short time after Wednesday and another cold front will move through the northern gulf Friday.

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 230928
area forecast discussion
national weather service new orleans la
328 am cst Wed jan 23 2019

Short term A positively tilted upper level trough axis will
take on a more neutral tilt as it moves through the forecast area
today. This morning, the combination of strong positive vorticity
advection, favorable jet dynamics, and ample moisture will allow
for scattered to numerous showers and a few thunderstorms to begin
developing. By late morning and early afternoon, a strong cold
front associated with this approaching trough axis will push
across the forecast area, and expect to see a band of heavier
showers and thunderstorms impact the region. After reviewing model
soundings, it looks like the set-up will be our fairly typical
high shear and low CAPE event. Ample shear is in place with 0-6km
speed shear values around 50 knots and storm relative helicity
values in excess of 200m2 s2. However, instability is fairly
limited with marginal lapse rates of around 6.0c km, and mlcape
values of 400 j kg or less. If a severe thunderstorm manages to
develop today, the primary threats will be damaging wind gusts and
tornadoes. Due to the weak lapse rates, hail should not be a
threat with any severe storms today. After the front moves past an
area today, a quick drop in temperatures from the 60s into the 50s
and then the 40s by late this afternoon can be expected. Strong
subsidence and dry air advection in the wake of the front and
upper level trough axis will also lead to rapidly clearing skies
through the evening hours. By tomorrow morning, clear skies,
breezy conditions, and cold temperatures in the 30s can be

Deep layer northwest flow in the mid and upper levels will then
dominate the forecast area through Friday. In the low levels, a
strong high pressure system will settle over the area. A very dry
and very stable airmass will remain in place, and have clear skies
and colder than average temperatures in the forecast. Overnight
lows will drop into the 30s both Thursday and Friday nights, and
daytime highs will only warm into the middle 50s.

Long term The northwest flow pattern and a strong surface high
will remain in firm control of the forecast area through Monday.

Some modification in temperatures is expected over the weekend as
cold air advection wanes. Daytime highs should warm back to more
normal readings in the low to mid 60s from Saturday through Monday
and overnight lows will be closer to average in the upper 30s and
lower 40s.

A reinforcing front will sweep through the region late Monday
night and early Tuesday. This front should be moisture starved,
and only have a slight chance of showers in the forecast mainly
due to the fairly strong forcing anticipated along the front
itself. By Tuesday evening, the front should be in the gulf and a
drier, colder, and more stable airmass should begin to advect back
into the area for Tuesday night and Wednesday.

Aviation Most terminals will have ceilings remain at ovc060. There is a
possibility that a few sites could have tempo decks move through at
ovc003 ahead of the front and this could cause some vis reduction
this morning. Wind shift from southerly to NW with FROPA roughly
around 15z at btr, 18z msy, and 20z gpt. The front will carry mainly
shra inland while some tsra will be found along and near coastal
locations wed. There is also a slight chance that a light wintry mix
will move through at some northern terminal locations just as the
precip is moving out this evening, but even if this occurs, it is
not expected to cause any impacts.

Marine As the front passes winds will become NW and rapidly rise to around
25kt today. This will include all protected waters as well. Wind
speeds are not being handled well by any raw model guidance and
therefore the model averages are also having trouble with this. 1kft
winds are already fairly strong behind the front and it shouldn't be
difficult to bring the majority of those speeds to the sfc. It would
not be surprising to observe sustained winds up to 25kt with a
few gusts possibly to gale force on the lake and definitely over
open waters. Wind speeds will only back off a little before the
northerly winds are reinforced by another cold front moving
through Friday. Southerly winds will be back by late Saturday
ahead of the next front moving through Saturday night into Sunday
of next weekend with another set of strong winds.

Decision support
Dss code: yellow
deployed: none
activation: none
activities: small craft advisory and slight risk severe wx
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; marginal risk severe or excessive rain.

Yellow = heightened impacts with short-fused watch, warning or
advisory issuances; radar support for slight risk severe or
excessive rain.

Orange = high impacts; enhanced risk severe; nearby tropical events;
hazmat or other large episodes.

Red = full engagement for moderate to high risk of severe and or
excessive rain; direct tropical threats; events of national

Preliminary point temps pops
Mcb 64 31 54 30 100 40 0 0
btr 64 32 55 32 100 30 0 0
asd 68 33 56 31 100 70 0 0
msy 69 37 54 37 100 60 0 0
gpt 67 35 55 34 100 80 0 0
pql 71 37 56 32 100 80 0 0

Lix watches warnings advisories
La... None.

Gm... Small craft advisory until 6 am cst Thursday for gmz536-538-550-

Small craft advisory from noon today to 6 am cst Thursday for

Ms... Coastal flood advisory until 6 am cst early this morning for

Gm... Small craft advisory until 6 am cst Thursday for gmz538-550-552-

Small craft advisory from noon today to 6 am cst Thursday for


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PNLM6 - 8741533 - Pascagoula NOAA Lab, MS 3 mi47 min 58°F
GDXM6 - Grand Bay Reserve, MS 6 mi116 min SSE 20 64°F 1014 hPa63°F
PTBM6 - 8741003 - Petit Bois Island, MS 9 mi47 min SSE 16 G 19 65°F 1012.4 hPa
KATA1 - Katrina Cut, AL 18 mi71 min SSE 25 67°F 1011.5 hPa
CRTA1 - Cedar Point, AL 21 mi71 min SE 25 67°F 1011.5 hPa
DPIA1 - Dauphin Island, AL 25 mi41 min SSE 20 G 24 66°F 1011.3 hPa (-3.1)65°F
MBPA1 27 mi47 min 61°F 61°F
FMOA1 - 8734673 - Fort Morgan, AL 28 mi47 min SSE 23 G 27 66°F 1011.8 hPa
MBLA1 - Middle Bay Light, AL 28 mi71 min ESE 25 63°F 1011.9 hPa
PTOA1 35 mi47 min 65°F 65°F
OBLA1 - 8737048 - Mobile State Docks, AL 36 mi47 min 64°F 53°F1011.8 hPa
BSCA1 - Bon Secour, AL 37 mi101 min SSE 21 67°F 1012.9 hPa (-3.0)
WBYA1 38 mi47 min 58°F
WKXA1 - Weeks Bay Reserve, AL 38 mi116 min 70°F 1013 hPa65°F
MHPA1 - Meaher Park, AL 39 mi41 min SE 25 69°F 1011.5 hPa (-3.1)
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 42 mi47 min SSW 8.9 G 13 62°F 54°F1010.6 hPa

Wind History for Range A Rear, Port of Pascagoula, MS
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1 day
2 days

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Moss Point - Trent Lott International Airport, MS8 mi48 minS 13 G 245.00 miFog/Mist71°F66°F87%1011.3 hPa
Keesler Air Force Base / Biloxi, MS22 mi45 minS 17 G 235.00 miFog/Mist66°F64°F95%1010.8 hPa

Wind History from PQL (wind in knots)
Last 24hrE10E8SE14
1 day ago4E3--S9SE4CalmCalmCalmCalmCalmCalmCalmCalmCalmE7E4E5NE5E4E7E9E10E10E14
2 days agoN10

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 and Satellite Images
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GOES 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.
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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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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 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 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.