Friday, September20, 2019 L-36.com


Marine Weather and Tides
Bay St. Louis, MS

Version 3.4
NOTICE
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.
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 6:42AMSunset 6:57PM Friday September 20, 2019 4:32 AM CDT (09:32 UTC) Moonrise 11:11PMMoonset 12:25PM Illumination 63% Phase: Waning Gibbous; Moon at 21 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- 421 Am Cdt Fri Sep 20 2019
.small craft exercise caution in effect through this evening...
Today..East winds 15 to 20 knots. Waves 3 to 4 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Tonight..East winds 15 to 20 knots. Waves 3 to 4 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Saturday..East winds 15 to 20 knots. Waves 3 to 4 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Saturday night..East winds 15 to 20 knots. Waves 3 to 4 feet. Dominant period 4 seconds.
Sunday..Southeast winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Sunday night..Southeast winds 10 to 15 knots easing to 5 to 10 knots after midnight. Waves 1 to 2 feet. Dominant period 4 seconds.
Monday..Southeast winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Monday night..Southwest winds 5 to 10 knots becoming west after midnight. Waves 1 foot or less. Dominant period 4 seconds.
Tuesday..Northwest winds 5 to 10 knots becoming south in the afternoon. Waves 1 foot or less. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Tuesday night..Southwest winds near 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms after midnight.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 421 Am Cdt Fri Sep 20 2019
Synopsis..A ridge of high pressure will prevail over the coastal waters into next 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 200801
afdlix
area forecast discussion
national weather service new orleans la
301 am cdt Fri sep 20 2019

Discussion
Above normal temperatures and mainly dry conditions will prevail
through the next week. The best rain chances during this period
will likely be today with isolated to scattered convection
expected. The higher rain chances today will be over the western
half of the forecast area where the better moisture will reside.

Some drier air will begin pushing westward into the forecast area
today which will limit the chances for convection across eastern
zones, especially coastal mississippi. This drier air will filter
across much of the area into the weekend, but will be most noted
across eastern and northern sections of the forecast area. As a
result, it will feel a bit less humid and nighttime lows will be a
little lower... Primarily across south mississippi and the florida
parishes of southeast louisiana. Otherwise, ridging aloft will
dominate the gulf south with some weakening and suppression of the
ridge during the middle and end of next week as a couple of short
wave troughs pass to our north and northwest. Generally went a
bit above guidance for daytime highs, especially through the
weekend, given recent model guidance performance and the dry
conditions across much of the area. 11

Aviation
Vfr category conditions will generally prevail at the terminals
during the TAF forecast period. Isolated to scattered convection
today could impact any of the terminals, with kgpt having the
least chance. The convection should mostly dissipate after sunset.

11

Marine
A tightening pressure gradient will result in moderate to strong
easterly flow across the coastal waters through the weekend.

Exercise caution headlines will be needed during this period for
all locations but the tidal lakes with even small craft advisory
conditions possible at times. The winds will relax going into next
week with high pressure prevailing across the region. 11

Decision support
Dss code: green.

Deployed: none.

Activation: none.

Activities: none.

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 rainfall, or direct tropical threats; events of
national significance.

Preliminary point temps pops
Mcb 89 68 89 68 20 10 10 0
btr 88 71 90 71 40 10 20 0
asd 90 70 90 69 30 10 20 0
msy 90 74 90 74 40 20 20 0
gpt 90 72 90 72 20 10 10 0
pql 90 70 90 69 20 10 10 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
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 1 mi50 min SE 15 G 18
PNLM6 - 8741533 - Pascagoula NOAA Lab, MS 41 mi56 min 86°F
PTBM6 - 8741003 - Petit Bois Island, MS 44 mi56 min ENE 15 G 18 80°F 1017.6 hPa
NWCL1 - 8761927 - New Canal, LA 46 mi50 min SE 5.1 G 12 78°F 86°F1016.2 hPa
GDXM6 - Grand Bay Reserve, MS 48 mi107 min E 12 78°F 1019 hPa73°F

Wind History for Bay Waveland Yacht Club, MS
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Gulfport - Gulfport-Biloxi International Airport, MS15 mi39 minENE 1010.00 miA Few Clouds76°F72°F88%1017.4 hPa
Keesler Air Force Base / Biloxi, MS23 mi96 minENE 810.00 miPartly Cloudy76°F73°F92%1017.9 hPa

Link to 5 minute data for KHSA

Wind History from HSA (wind in knots)
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Last 24hr--------------------CalmCalmCalmCalmS4----S8SE10
G15
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G17
SE9E6
1 day ago--------------------CalmCalmCalmCalm--SE3SE4E5
G13
S5S7S5SW4--Calm
2 days agoCalm------------------Calm--CalmCalmCalm4S6SE6S8--S8S6SW3Calm

Tide / Current Tables for Bay St. Louis, Mississippi
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Bay St. Louis
Click for Map
Fri -- 03:38 AM CDT     1.81 feet High Tide
Fri -- 06:44 AM CDT     Sunrise
Fri -- 12:25 PM CDT     Moonset
Fri -- 04:03 PM CDT     0.48 feet Low Tide
Fri -- 06:56 PM CDT     Sunset
Fri -- 11:11 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.61.71.81.81.81.81.71.61.51.31.210.80.70.60.50.50.50.60.70.811.21.4

Tide / Current Tables for Cat Island (West Point), Mississippi
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Cat Island (West Point)
Click for Map
Fri -- 02:15 AM CDT     1.99 feet High Tide
Fri -- 06:43 AM CDT     Sunrise
Fri -- 12:24 PM CDT     Moonset
Fri -- 02:19 PM CDT     0.49 feet Low Tide
Fri -- 06:55 PM CDT     Sunset
Fri -- 11:10 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.91.9221.91.81.71.51.31.10.90.70.60.50.50.50.60.70.811.21.41.51.7

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 (5,6,7,8)
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Ground Weather Radar Station New Orleans/Baton Rouge, LA
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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 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.