Thursday, June20, 2019 L-36.com


Marine Weather and Tides
Bay St. Louis, MS

Version 3.4
NOTICE
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 5:53AMSunset 8:02PM Thursday June 20, 2019 12:17 AM CDT (05:17 UTC) Moonrise 10:53PMMoonset 8:47AM Illumination 93% Phase: Waning Gibbous; Moon at 17 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- 928 Pm Cdt Wed Jun 19 2019
Rest of tonight..Southwest winds 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
Thursday..Southwest winds 15 to 20 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms in the afternoon.
Thursday night..Southwest winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
Friday..South winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
Friday night..Southwest winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
Saturday..South winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Saturday night..South winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
Sunday..South winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms in the afternoon.
Sunday night..South winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
Monday..Southwest winds 10 to 15 knots. Waves 2 to 4 feet. Slight chance of showers and Thunderstorms in the afternoon.
Monday night..Southwest winds 10 to 15 knots. Waves 1 to 2 feet.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 928 Pm Cdt Wed Jun 19 2019
Synopsis..Persistent onshore flow is expected through the period as surface high pressure stays in place over the bahamas and eastern gulf and drifts slowly westward through the end of the week.


7 Day Forecast for Marine Location Near Bay St. Louis, MS
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location: 30.31, -89.33     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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Fxus64 klix 200432 aaa
afdlix
area forecast discussion... Updated
national weather service new orleans la
1132 pm cdt Wed jun 19 2019

Update
No changes at this time. Have been reviewing and analyzing the
short range cam models this evening, which have introduced some
nocturnal convection on some runs, but are trending back down in
the most recent run of the hrrr and rap. Upper air analysis
indicates the ongoing qlcs feature in the mississippi delta
region, racing east at 60 mph, and the trailing MCS near
shreveport are responding to upper level jet streak and feeding on
deeper low level moisture feed from the upper texas coast into
the ARKLATEX region at 00z. Meanwhile, another qlcs feature in the
texas hill country is expected to move southeast along the better
theta-e ridge, which should see this activity move off the texas
coast in the pre-dawn hours. It appears the models may be
suffering from convective feedback in attempting to scale properly
for short wavelength impulses. Based on this reasoning, will not
be updating the low pops currently forecast but have the night
shift watch trends closely. Incidentally, SPC did place a marginal
risk into our SW ms counties and adjacent florida parishes, but
this may be a bit overdone.

On another note: the radar is lighting up radially to the
northwest. This is three body scatter on a nyquist interval wrap-
around - essentially a second trip echo return from energy
returning to the radar from distant large hail core aloft near
shreveport area, amplified by erratic backscatter behavior. This
is the technical explanation for what is 'false return'.

Aviation
Vfr conditions are expected for the most part though some marine
layer clouds may roll into the area before daybreak in mostly sct
to occasional bkn coverage based around 2500 feet. Diurnal
diabatic heating should lift bases above 3500 feet by around 15z.

Some compression of gradient to present some gustiness to the
southwest prevailing wind, particularly after the advancement of
the gulf breeze by late morning to early afternoon.

Preliminary point temps pops
Mcb 73 93 74 93 0 20 10 30
btr 76 94 77 93 0 20 10 20
asd 75 93 77 93 0 20 10 10
msy 78 92 80 93 0 20 10 10
gpt 78 90 78 89 0 20 10 10
pql 75 92 77 92 0 20 10 10

Lix watches warnings advisories
La... None.

Gm... None.

Ms... None.

Gm... None.

24 rr


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 1 mi54 min SW 7 G 11 83°F 84°F1011.3 hPa
SHBL1 - 8761305 - Shell Beach, LA 36 mi48 min SSW 9.9 G 13 82°F 86°F1011.5 hPa
PNLM6 - 8741533 - Pascagoula NOAA Lab, MS 41 mi54 min 85°F
PTBM6 - 8741003 - Petit Bois Island, MS 44 mi54 min SW 15 G 19 85°F 1011.3 hPa
NWCL1 - 8761927 - New Canal, LA 46 mi48 min SSW 7 G 9.9 82°F 85°F1010.4 hPa
GDXM6 - Grand Bay Reserve, MS 48 mi93 min SW 12 84°F 1012 hPa80°F

Wind History for Bay Waveland Yacht Club, MS
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bay St. Louis, Stennis International Airport, MS8 mi4.5 hrsS 610.00 miFair82°F75°F79%1009.8 hPa
Gulfport - Gulfport-Biloxi International Airport, MS15 mi25 minSW 510.00 miFair83°F75°F77%1010.7 hPa
Keesler Air Force Base / Biloxi, MS23 mi82 minSW 1110.00 miFair83°F75°F79%1011.4 hPa

Wind History from HSA (wind in knots)
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Last 24hrS4------------------CalmSW4W6W6W5W6W12W8SW8----S7S7S6
1 day ago--------------------S5S9SW9
G20
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2 days agoSW4------------------CalmCalmS8S11S11SE10S9
G16
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S10SE8S6NW14--SE3

Tide / Current Tables for Bay St. Louis, Mississippi
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Bay St. Louis
Click for Map
Thu -- 01:02 AM CDT     -0.13 feet Low Tide
Thu -- 05:55 AM CDT     Sunrise
Thu -- 08:47 AM CDT     Moonset
Thu -- 01:56 PM CDT     1.86 feet High Tide
Thu -- 08:01 PM CDT     Sunset
Thu -- 10:52 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.1-0.1-0.1-00.10.30.50.711.21.41.61.71.81.91.81.71.61.31.10.80.60.40.2

Tide / Current Tables for Cat Island (West Point), Mississippi
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Cat Island (West Point)
Click for Map
Thu -- 05:55 AM CDT     Sunrise
Thu -- 08:47 AM CDT     Moonset
Thu -- 12:35 PM CDT     2.02 feet High Tide
Thu -- 08:01 PM CDT     Sunset
Thu -- 10:51 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.3-0.2-0.100.20.40.711.21.51.71.9221.91.81.61.310.70.50.20-0.1

Weather Map and Satellite Images
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wmap_A
GOES 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 (1,6,7,8)
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Ground Weather Radar Station New Orleans/Baton Rouge, LA
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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 numerious 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.