Saturday, February24, 2018 L-36.com


Marine Weather and Tides
Bay St. Louis, MS

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:25AMSunset 5:53PM Saturday February 24, 2018 9:39 PM CST (03:39 UTC) Moonrise 1:31PMMoonset 2:36AM Illumination 74% Phase: Waxing Gibbous; Moon at 10 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
    EDIT      (on/off)   Help
GMZ532 Mississippi Sound- 835 Pm Cst Sat Feb 24 2018
Tonight..South winds near 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers through the night. Slight chance of Thunderstorms after midnight.
Sunday..South winds 5 to 10 knots. Waves 1 foot. Dominant period 4 seconds. Chance of showers and slight chance of Thunderstorms.
Sunday night..South winds 10 to 15 knots. Waves 2 feet. Dominant period 4 seconds. Showers and slight chance of Thunderstorms.
Monday..West winds 10 to 15 knots becoming northeast 5 to 10 knots in the late morning and afternoon. Waves 1 to 2 feet. Dominant period 4 seconds. Showers likely in the morning. Slight chance of Thunderstorms through the day. Chance of showers in the afternoon.
Monday night..Northeast winds 10 to 15 knots. Waves 2 feet. Dominant period 4 seconds.
Tuesday..East winds 10 to 15 knots. Waves 2 to 3 feet. Dominant period 4 seconds. Chance of showers and slight chance of Thunderstorms.
Tuesday night..South winds 10 to 15 knots. Waves 2 to 3 feet. Dominant period 4 seconds. Chance of showers and slight chance of Thunderstorms.
Wednesday..South winds 10 to 15 knots. Waves 2 to 3 feet. Slight chance of showers and Thunderstorms.
Wednesday night..Southwest winds 10 to 15 knots. Waves 2 to 3 feet. Chance of showers and slight chance of Thunderstorms.
Thursday..West winds 15 to 20 knots. Waves 2 to 4 feet. Chance of showers and slight chance of Thunderstorms.
Thursday night..North winds 15 to 20 knots. Waves 2 to 4 feet.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 835 Pm Cst Sat Feb 24 2018
Synopsis..Persistent onshore flow will continue into early Monday. A weak cold front will move off the coast Monday and Monday night but become stationary in the northern gulf Monday before moving north as a warm front Tuesday.

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


Area Discussion for - New Orleans/Baton Rouge, LA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus64 klix 242205
afdlix
area forecast discussion
national weather service new orleans la
405 pm cst Sat feb 24 2018

Short term
Today has been another warm one with temps at or near records, strong
onshore flow, and plenty of Sun between cumulus clouds. Despite
the daytime instability only isolated spot showers have developed
this afternoon, likely due to the weak low level lapse rates and
elevated inversion seen on the morning sounding. Most areas will
remain dry this evening, though scattered showers and maybe a
thunderstorm are still possible.

The thinking for later tonight is that the complex of storms
developing now over far northeast texas and southwest arkansas
will push to the ese. The line of showers and storms is expected
to sag south and approach the northern parts of our area after
midnight, though be weakening as it does. The stronger forcing and
shear remains well north of our area. The showers and storms will
also be encountering the weaker low level lapse rates and mid
level subsidence inversion closer to the gulf coast. Daytime
hours Sunday will likely involve scattered showers and some
embedded thunderstorms, mainly across the northern half of the
area. The cold front will hang up inland Sunday, with the boundary
providing the lift for precip. Gusty winds will be the main
marginally severe threat from any stronger storms. The rain and
increased cloud cover should keep temps a bit cooler in the 70s.

Sunday night into Monday morning another round of moderate to
locally heavy rain is expected as a secondary 500 mb shortwave
tracks over the southern plains. This will enhance convection and
rainfall on the boundary and help to finally push the cold front
into the northern gulf Monday. Through Monday morning 2 to 4
inches of rain is still possible across the central gulf coast.

Any heavier storms or training cells could produce localized
flooding. An ongoing important consideration with the forecast
this weekend is situational awareness relating to the very warm
and moisture rich airmass in place. Conditions are still more
comparable to may or early june, with precipitable water in excess
of 1.5 inches.

Long term
Late Monday into Tuesday morning looks to be a dry period, but
onshore flow quickly returns. Scattered showers and storms are
possible Tuesday and Wednesday in onshore flow. The strong ridge
over the gulf responsible for the exceptionally warm weather,
while suppressed south a bit, never loses its influence over the
central gulf coast. Therefore above average temperatures are
expected through Thursday, with only some cooling. In the long
range, there is model agreement that a vigorous shortwave trough
will approach the lower mississippi valley Wednesday night into
Thursday. Tropical air would again be in place so this upper low
and accompanying cold front will bring more chances for storms
midweek, some possibly strong. Temperatures closer to normal or
just a bit above are possible behind the cold front at the end of
next week.

Krautmann

Aviation
Conditions should remain prevailingVFR this afternoon, however a
few airports may continue to have tempo MVFR category CIGS at times.

Isolated to locally scattered shra are expected through the evening
with a few tsra possible. Given the low probability at an individual
taf airport, have only carried vcsh through 06z Sunday. Lower MVFR
category CIGS are expected to return this evening, then ifr to lifr
is likely after 06z Sunday through 12-15z Sunday morning along with
increasing chances of shra and some tsra with associated lower vsby.

The higher threat of the shra tsra, along with any erratic and
stronger winds, will be occurring in association with a cold front
that will be moving in from northwest to southeast overnight before
stalling out near or just inland from the coast on Sunday into
Sunday night. 22 td

Marine
High pressure to the east and approaching cold front from the
northwest will maintain south winds of 15 to 20 knots across coastal
waters through this evening with seas up to 5 to 6 feet. Will
maintain "small craft exercise caution" headline through midnight
tonight. The pressure gradient will relax slightly overnight into
Sunday morning as the cold front approaches the coast and stalls
just inland. This is expected to maintain mostly south winds near 15
knots late tonight and south to southwest 10 to 15 knots on Sunday
through Monday which should allow the seas to slowly subside down to
2 to 4 feet across the coastal waters by Sunday afternoon. Most of
the thunderstorms that enter the coastal waters later tonight
through Sunday and Monday morning should be weakening, but cannot
rule out some stronger gusts and locally shifting winds with any
organized lines of storms.

Surface high pressure will build into the southeast states and
atlantic coast region late Monday into Tuesday and that should nudge
the weak cold front south into the north gulf coastal waters. Winds
will likely become weaker and shift to northwest, northeast then
east during the Monday and Monday night periods with speeds around
10 knots or less and seas of 2 to 3 feet. The high is expected to
shift east again heading into mid week which will bring a return to
southerly winds of 10 to 15 knots and higher wave heights again
Wednesday into Thursday. 22 td

Decision support Dss code: yellow.

Deployed: none.

Activation: none.

Activities: radar support and monitoring
marginal risk conditions.

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.

Yellow = heightened impacts with short-fused watch, warning or
advisory issuances; radar support.

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

Red = full engagement for moderate risk of severe and or direct
tropical threats; events of national significance.

Preliminary point temps pops
Mcb 62 67 55 72 90 90 100 30
btr 64 72 59 74 80 90 100 30
asd 69 75 63 74 40 70 90 60
msy 71 78 66 73 40 70 90 50
gpt 71 74 65 72 30 60 80 70
pql 69 77 63 74 30 60 80 70

Lix watches warnings advisories
La... None.

Gm... None.

Ms... None.

Gm... None.



Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 1 mi52 min S 7 G 11 74°F 75°F1017.8 hPa
SHBL1 - 8761305 - Shell Beach, LA 36 mi52 min S 5.1 G 8 73°F 78°F1017.8 hPa
PNLM6 - 8741533 - Pascagoula NOAA Lab, MS 41 mi52 min 73°F
PTBM6 - 8741003 - Petit Bois Island, MS 44 mi52 min S 8.9 G 9.9 72°F 1019 hPa
NWCL1 - 8761927 - New Canal, LA 46 mi52 min S 6 G 8.9 74°F 67°F1017.1 hPa

Wind History for Bay Waveland Yacht Club, MS
(wind in knots)    EDIT      (on/off)   Help
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
Last
24hr
S13
G17
S13
G18
S8
S6
G9
S7
S8
G14
S6
G11
S9
G13
S4
S8
S8
G11
S8
G11
S8
G11
S10
S10
S12
S11
S12
G17
S11
G17
S10
G14
S9
G13
S7
G12
S6
G10
S7
G10
1 day
ago
SE15
SE13
G16
SE12
G16
SE11
G14
SE11
G15
SE12
SE10
G14
SE12
SE11
G14
SE12
G15
SE12
G15
SE11
SE14
G19
SE14
G17
SE15
G21
SE17
G22
SE19
G23
SE14
G20
SE12
S11
G14
SE11
SE13
G16
SE13
G16
SW3
G7
2 days
ago
SE10
SE11
SE12
G15
SE10
SE8
G11
SE8
G11
SE7
G10
SE8
G11
SE10
SE9
SE11
SE13
SE12
G15
SE16
SE12
G16
SE13
G16
SE13
G16
SE12
G15
SE12
G15
SE12
SE11
G14
SE13
G17
SE15
SE14
G18

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bay St. Louis, Stennis International Airport, MS8 mi50 minS 610.00 miPartly Cloudy72°F69°F94%1017.9 hPa
Gulfport - Gulfport-Biloxi International Airport, MS15 mi47 minS 610.00 miPartly Cloudy74°F71°F91%1017.4 hPa
Keesler Air Force Base / Biloxi, MS23 mi44 minSSW 710.00 miPartly Cloudy73°F69°F89%1018.2 hPa

Wind History from HSA (wind in knots)
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
Last 24hr------------------CalmS5S9
G14
S11
G15
S13S16
G19
S14
G19
S14
G18
S16
G22
S14
G22
S14
G22
S14
G22
S7S8S6
1 day ago------------------SE3--SE8SE10
G16
SE10
G15
SE9
G18
SE15
G22
SE12
G20
SE12
G18
S10
G23
SE12SE7CalmS5S6
2 days ago------------------SE5SE5SE7SE11
G16
SE12
G17
SE12
G17
SE9SE10
G15
E11
G16
SE11
G15
SE7SE7SE7SE7SE7

Tide / Current Tables for Bay St. Louis, Mississippi
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Bay St. Louis
Click for Map
Sat -- 01:36 AM CST     Moonset
Sat -- 05:50 AM CST     -0.40 feet Low Tide
Sat -- 06:28 AM CST     Sunrise
Sat -- 12:30 PM CST     Moonrise
Sat -- 05:52 PM CST     Sunset
Sat -- 07:12 PM CST     1.50 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.30.1-0.1-0.3-0.4-0.4-0.4-0.2-0.10.10.30.50.70.91.11.31.41.51.51.51.41.31.1

Tide / Current Tables for Cat Island (West Point), Mississippi
   EDIT      (on/off)   Help   One Week of Data
Cat Island (West Point)
Click for Map
Sat -- 01:35 AM CST     Moonset
Sat -- 04:24 AM CST     -0.58 feet Low Tide
Sat -- 06:28 AM CST     Sunrise
Sat -- 12:30 PM CST     Moonrise
Sat -- 05:05 PM CST     1.55 feet High Tide
Sat -- 05:52 PM CST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0-0.2-0.4-0.5-0.6-0.6-0.5-0.4-0.200.30.50.811.21.41.51.51.51.41.310.80.5

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for New Orleans/Baton Rouge, LA (22,6,7,8)
      (on/off)   Help

Ground Weather Radar Station New Orleans/Baton Rouge, LA
   (on/off)   Help
weather_mapweather_map weather_map

Gulf Stream Current


Ad by Google

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.