Thursday, June20, 2019 L-36.com


Marine Weather and Tides
Madisonville, LA

Version 3.4
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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 5:58AMSunset 8:08PM Thursday June 20, 2019 7:59 AM CDT (12:59 UTC) Moonrise 9:57PMMoonset 7:51AM Illumination 91% 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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GMZ530 Lake Pontchartrain And Lake Maurepas- 417 Am Cdt Thu Jun 20 2019
Today..Southwest winds 10 to 15 knots. Waves 2 to 3 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Tonight..Southwest winds 10 to 15 knots. Waves 2 to 3 feet. Dominant period 4 seconds.
Friday..South winds 5 to 10 knots. Waves 1 to 3 feet. Dominant period 4 seconds. Slight chance of showers in the morning.
Friday night..South winds 10 to 15 knots. Waves 2 to 3 feet. Dominant period 4 seconds.
Saturday..South winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Saturday night..South winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Sunday..South winds 5 to 10 knots. Waves 1 to 2 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 3 feet. Dominant period 4 seconds.
Monday..South winds near 10 knots. Waves 2 feet. Chance of showers and slight chance of Thunderstorms in the afternoon.
Monday night..Southwest winds 5 to 10 knots. Waves 1 foot or less.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 417 Am Cdt Thu Jun 20 2019
Synopsis..General troughing will remain to the northwest while high pressure stays over the east coast. A surface high will eventually move over the northern gulf by the start of the work week.


7 Day Forecast for Marine Location Near Madisonville, LA
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location: 30.38, -90.16     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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Fxus64 klix 201047
afdlix
area forecast discussion
national weather service new orleans la
547 am cdt Thu jun 20 2019

Updated aviation section...

Short term
Not much unlike yesterday morning, sh TS will move into the area
while dissipating. Strong possibly severe thunderstorm should make
its way into northern tier of counties in southern miss before
dissipating or at least weakening below severe limits. Otherwise,
not expecting much in the way of severe as the line continues to
leave its source region and dampen. But a few thunderstorms will
be possible along with some gusty winds as high as 25 to 30mph.

This line should weaken further while leaving an outflow boundary
over the area with a cool pool. This will help to reignite sh ts
around and after noon today as heating will help re-energize the
cells along the outflow. This will need to be watched as dry air
will begin to be entrained into any storm capable of producing
lightning. The more lightning a cell can produce, the more likely
it will be severe with downbursting winds. We can't leave any mode
of severity off the table since even helicity values which will
be lacking during the morning, begin to increase rapidly by noon
and after. So we will call for all modes possible with damaging
winds being the most expected with any severe wx. This is not
expected to be a widespread event, but isolated severe
thunderstorms will be probable.

Friday looks like only heating to produce any convective elements.

It may take a little more to get a thunderstorm going, but the
same elements will still be in place for any thunderstorm that can
develop to produce sever wx once again. But Friday numbers are
expected to be lower.

By Sunday, moisture is able to make a deeper comeback causing
convective temps to lower and pws to increase as well. This simply
relates to better coverage in rainfall. There could be a few more
mcs type features that rotate out of tx Monday morning bringing a
line of thunderstorms. Early into next week, we begin to fall on
the periphery of the large high that will have moved southwest
binging our area into this so called "ring of fire" where mcs
complexes will develop to the west and move over the area each
night into the day. This is several days out and will depend
greatly on exactly where this belt of sh TS sets up.

Aviation
Updated 1047z
Updated to reflect latest radar observation trends. Watching a
remnant boundary of showers moving across southern ms and north of
i-10 12. Only impacts with this boundary is brief gusty winds and
a wind shift to more around 260-280 degrees. This boundary will
eventually continue to fall apart later this morning. Otherwise, a
few isolated showers have developed across the area, but will not
increase in coverage or intensity. ExpectVFR conditions for all
area terminals by mid to late morning, before more spotty
showers storms develop early to mid afternoon. Which areas see
better coverage or intensity will depend on where the current
eastward moving boundary sets up. Looking like generally east of
i-55, including SE la and coastal ms. In any one storm later
today, strong storm downdrafts may cause gusty, erratic winds
along with lowered cig's periodically reducing flight categories.

This convection dissipates later tonight revealingVFR conditions
for all area terminals through tomorrow morning. Klg

Marine
Winds will rise a bit into caution conditions today and will keep
this though 3pm today. Winds will ease just a bit to around
10-15kt afterwards. Southwesterly direction will be maintained
until the weekend then becoming more southerly. Wind speeds will
slowly lower through the weekend and become rather light and
possibly erratic as a sfc high moves southwest over the area by
the start of the work week.

Decision support
Dss code: blue.

Deployed: none.

Activation: none.

Activities: river flood warnings
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
significance.

Preliminary point temps pops
Mcb 93 74 92 75 40 0 30 0
btr 93 77 92 77 40 0 20 0
asd 93 76 92 76 30 0 20 0
msy 93 79 92 79 30 0 20 0
gpt 91 78 90 78 30 0 20 0
pql 92 76 92 76 30 0 20 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
FREL1 23 mi59 min S 2.9 G 5.1 79°F 1011.9 hPa (+0.0)
NWCL1 - 8761927 - New Canal, LA 25 mi59 min SSW 5.1 G 8 81°F 84°F1012.7 hPa (+0.9)
CARL1 31 mi59 min 79°F
BYGL1 - 8762482 - Bayou Gauche, LA 43 mi59 min SSE 1.9 G 5.1 79°F 87°F1013.5 hPa (+0.9)
SHBL1 - 8761305 - Shell Beach, LA 44 mi59 min W 6 G 8 81°F 85°F1014.2 hPa (+1.5)
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 44 mi59 min W 2.9 G 5.1 81°F 83°F1014 hPa (+1.0)

Wind History for New Canal Station, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hammond, Hammond Municipal Airport, LA17 mi64 minSSE 65.00 miPartly Cloudy77°F77°F100%1012.2 hPa
Slidell, Slidell Airport, LA18 mi66 minSW 410.00 miFair82°F77°F85%1013.1 hPa
New Orleans, New Orleans Lakefront Airport, LA24 mi66 minSW 67.00 miFair82°F78°F88%1012.8 hPa

Wind History from HDC (wind in knots)
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Last 24hrW6W7W4W4W4W5SW10SW5S9S6SW7SW7SW7SW8SW7SW5SW5SW4SW5SW4CalmCalmS3S8
1 day agoW4SW7SW11SW5NW5S6S3S6S4S3SE6SE6SE3CalmCalmSW4SW4SW3CalmSW3CalmCalmCalmCalm
2 days agoSE5SE8S9S11W15
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E5E4CalmSE6CalmCalmCalmS3CalmCalmCalmCalmS3CalmCalm

Tide / Current Tables for Paris Road Bridge, Mississippi River Delta, Louisiana
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Paris Road Bridge
Click for Map
Thu -- 04:57 AM CDT     -0.17 feet Low Tide
Thu -- 05:58 AM CDT     Sunrise
Thu -- 08:51 AM CDT     Moonset
Thu -- 05:28 PM CDT     1.32 feet High Tide
Thu -- 08:03 PM CDT     Sunset
Thu -- 10:54 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.20-0.1-0.2-0.2-0.1-0.100.10.30.50.60.811.11.21.31.31.31.210.80.7

Tide / Current Tables for Long Point, Lake Borgne, Louisiana
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Long Point
Click for Map
Thu -- 01:30 AM CDT     -0.15 feet Low Tide
Thu -- 05:57 AM CDT     Sunrise
Thu -- 08:49 AM CDT     Moonset
Thu -- 02:48 PM CDT     1.19 feet High Tide
Thu -- 08:02 PM CDT     Sunset
Thu -- 10:53 PM CDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.1-0.1-0.2-0.1-000.20.30.40.60.70.911.11.21.21.21.10.90.80.60.40.20.1

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for New Orleans/Baton Rouge, LA (8,2,3,4)
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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.