Tuesday, October22, 2019 L-36.com


Marine Weather and Tides
Henderson Point, MS

Version 3.4
NOTICE
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.
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 7:02AMSunset 6:19PM Tuesday October 22, 2019 6:30 PM CDT (23:30 UTC) Moonrise 12:49AMMoonset 2:56PM Illumination 31% Phase: Waning Crescent; Moon at 24 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- 319 Pm Cdt Tue Oct 22 2019
.small craft advisory in effect until 11 pm cdt this evening...
Tonight..Northeast winds 15 to 20 knots with higher gusts. Waves 2 to 4 feet. Dominant period 4 seconds.
Wednesday..Northeast winds near 15 knots becoming east 5 to 10 knots late in the afternoon. Waves 2 to 4 feet. Dominant period 4 seconds.
Wednesday night..East winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
Thursday..East winds 15 to 20 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Chance of showers and isolated Thunderstorms in the afternoon.
Thursday night..East winds 15 to 20 knots. Waves 3 to 5 feet. Dominant period 4 seconds. Showers likely in the evening. Scattered Thunderstorms through the night. Showers after midnight.
Friday..East winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Showers and scattered Thunderstorms.
Friday night..Northeast winds 15 to 20 knots becoming southeast 10 to 15 knots after midnight. Waves 2 to 4 feet. Dominant period 4 seconds. Showers likely and scattered Thunderstorms.
Saturday..East winds 10 to 15 knots becoming northeast in the late morning and afternoon. Waves 2 to 4 feet. Dominant period 4 seconds. Chance of showers.
Saturday night..Northeast winds 10 to 15 knots becoming southeast late in the evening, then becoming northeast after midnight. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers.
Sunday..Northeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers.
Sunday night..East winds 5 to 10 knots becoming north after midnight. Waves 1 to 2 feet. Dominant period 4 seconds.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 319 Pm Cdt Tue Oct 22 2019
Synopsis..High pressure will continue to build into the area behind the strong cold front that moved over the coastal waters late Monday night. Another cold front will approach the coastal waters Friday.


7 Day Forecast for Marine Location Near Henderson Point, MS
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location: 30.21, -89.28     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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Fxus64 klix 222059
afdlix
area forecast discussion
national weather service new orleans la
359 pm cdt Tue oct 22 2019

Discussion After a rather nasty day yesterday it was far more
pleasant today. Very dry air has pushed into the region and cold air
has been advecting in through the day. Only clouds have been high
clouds streaming in across the region from the southwest.

For the next 48 hours things will remain fairly quiet and on the
cool side. High pressure at the sfc is building in and should set up
right over the region tonight. With light winds at the sfc and dry
cool air in place conditions do look good for a favorable rad
cooling night and some of the coldest morning lows we have seen
since mid-late april across the region. Most of the area will drop
below 50 degrees for a morning low tomorrow and the last time that
occurred was either on april 22nd or 27th for much of the area.

There are 2 things that could hurt rad cooling potential tonight.

First is winds just off the deck (around h925) actually remain on
the strong side and this would promote mixing. These winds will
remain strongest over coastal ms through the night but do lighten up
over southeast la and southwestern ms after 6z. The other minor
issue is high clouds streaming over the region. These 2 features may
keep temps from fully bottoming out which if they could places like
asd and mcb could touch 40.

We will remain below normal for both highs by 4-6 degrees over much
of the area tomorrow with another sunny day in store followed by one
more night of optimal rad cooling conditions. Thursday morning lows
will not be as cold as tomorrow morning as we will begin to slowly
moderate with the sfc low lifting to the northeast.

Main forecast concern is the system expected to impact the region
Thursday night and possibly through the weekend. There is a lot of
differences in specific model soln but overall the rain chances look
rather favorable through at least Friday night. A strong S W will
dive south-southeast out of WRN canada and dig across the
continental divide and the plains. How far south and west this S w
digs will be key for how prolonged the rain event will be. Either
way we begin to slowly recover with moisture increasing Thursday.

Increasing southwest flow aloft will lead to better support aloft.

This will also begin to induce some weak cyclogenesis over the
southwestern gulf. Increasing flow aloft and increasing isentropic
lift should allow rain to begin overnight Thursday expanding through
the morning with a shield of rain and embedded thunderstorms over
the region ahead of the approaching cold front Friday. Main
disturbance should lift out to the northeast Sat with drier air
finally moving back in Sunday.

As for threat of strong to severe weather, the potential seems
fairly low at this time. We really never fully recover from our
front that just moved through and when we have the best instability
in place forcing is not that strong and much of the lift will be
driven by isentropic lift along with broad diffluence aloft. Cab

Marine Small craft advisory conditions will continue through the
night for the open waters. Weak cold air advection and strong winds
just off the sfc should continue to lead to windy conditions tonight
but just before sunrise conditions should begin to improve. The next
cold front will approach this weekend with a weak sfc low expected
to develop over the southwestern gulf and move northeast. Cab
,aviation...VFR conditions will continue through the forecast. Cab

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 42 72 46 72 0 0 0 10
btr 43 72 50 74 0 0 0 20
asd 44 73 48 75 0 0 0 20
msy 53 72 59 75 0 0 0 20
gpt 46 71 51 73 0 0 0 20
pql 42 72 47 75 0 0 0 20

Lix watches warnings advisories
La... None.

Gm... Small craft advisory until 7 am cdt Wednesday for gmz536-538-550-
552-555-557-570-572-575-577.

Small craft advisory until 11 pm cdt this evening for gmz532.

Ms... None.

Gm... Small craft advisory until 7 am cdt Wednesday for gmz538-550-552-
555-557-570-572-575-577.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 8 mi49 min NNW 9.9 G 15 73°F 73°F
SHBL1 - 8761305 - Shell Beach, LA 32 mi49 min NNW 16 G 18 74°F 75°F1019.4 hPa
PNLM6 - 8741533 - Pascagoula NOAA Lab, MS 40 mi49 min 73°F
PTBM6 - 8741003 - Petit Bois Island, MS 41 mi49 min N 13 G 16 72°F 1018.7 hPa
NWCL1 - 8761927 - New Canal, LA 46 mi43 min N 14 G 17
GDXM6 - Grand Bay Reserve, MS 47 mi46 min NNW 2.9 71°F 1020 hPa50°F
CARL1 49 mi43 min 71°F
GBRM6 49 mi151 min 73°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
Bay St. Louis, Stennis International Airport, MS14 mi41 minNNW 410.00 miFair68°F41°F38%1019 hPa
Gulfport - Gulfport-Biloxi International Airport, MS17 mi38 minNNW 810.00 miFair69°F42°F38%1018.8 hPa
Keesler Air Force Base / Biloxi, MS24 mi95 minNNW 810.00 miFair74°F40°F30%1018.6 hPa

Link to 5 minute data for KHSA

Wind History from HSA (wind in knots)
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Last 24hrN3CalmCalm------------------N5NW5NW10N10N11N9N10N10
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1 day agoSE4CalmCalm------------------CalmS6S6S8S9S6SE4E4S5SW3S5Calm
2 days agoNW5CalmCalm------------------CalmCalmCalmCalmCalmCalmSE6S5SE8S9S9S4

Tide / Current Tables for Cat Island (West Point), Mississippi
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Cat Island (West Point)
Click for Map
Tue -- 12:48 AM CDT     Moonrise
Tue -- 04:21 AM CDT     2.16 feet High Tide
Tue -- 07:03 AM CDT     Sunrise
Tue -- 02:54 PM CDT     Moonset
Tue -- 04:44 PM CDT     0.16 feet Low Tide
Tue -- 06:18 PM CDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.61.822.12.22.12.121.81.61.31.10.80.60.40.30.20.20.20.30.50.70.91.1

Tide / Current Tables for Pass Christian Yacht Club, 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 (19,4,5,8)
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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.