Tuesday, October22, 2019 L-36.com


Marine Weather and Tides
New Orleans, LA

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 7:05AMSunset 6:24PM Tuesday October 22, 2019 9:11 AM CDT (14:11 UTC) Moonrise 12:00AMMoonset 1:59PM Illumination 35% 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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GMZ530 Lake Pontchartrain And Lake Maurepas- 432 Am Cdt Tue Oct 22 2019
.small craft exercise caution in effect through this evening...
Today..North winds 15 to 20 knots easing to 10 to 15 knots in the afternoon. Waves 3 to 5 feet. Dominant period 4 seconds. Waves or seas subsiding to 1 to 3 feet. Dominant period 4 seconds in the afternoon.
Tonight..Northeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Wednesday..East winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Wednesday night..East winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Thursday..East winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers in the afternoon.
Thursday night..Northeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and slight chance of Thunderstorms in the evening, then showers likely after midnight.
Friday..Northeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Showers likely in the morning, then chance of showers in the afternoon.
Friday night..Northeast winds 10 to 15 knots. Waves 2 to 4 feet. Chance of showers.
Saturday..North winds 10 to 15 knots. Waves 1 to 2 feet. Chance of showers.
Saturday night..Northeast winds 5 to 10 knots. Waves 1 to 2 feet.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 432 Am Cdt Tue Oct 22 2019
Synopsis..High pressure will build into the area today behind a 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 New Orleans, LA
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location: 30.07, -90.06     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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Fxus64 klix 220924
afdlix
area forecast discussion
national weather service new orleans la
424 am cdt Tue oct 22 2019

Short term
Not a lot of change from last fcast pack. Strong high pressure
will make conditions quite a bit nicer for the next few days.

Moisture will begin to move back into the area by Thursday but
this will move over a gently sloped insentropic sfc, basically
streaming over a warm front which our area will be located north
of. The warm front will be slow to move north and may only bisect
the area before the next front moves through. This is where the
questions come in with respect to the next front moving through or
not. Eventually it will regardless of which model solution one
uses.

Looking at the two main global models, both have a warm frontal
structure moving inland before Friday. Looking at the dew pt temps
and gradients, both also bring a cold front into east tx. They
just do so at different times, the GFS Friday while the euro waits
until late Saturday. The GFS brings this front through the area
clean by late Friday while the euro stalls the feature over
alexandria la on Sunday then brings it back to the northwest by
early next week and waits on the next front to clean everything
out. They both also show this second front, its just that the gfs
shows it as a reinforcing surge while the euro has the first
front stall and move back. The euro solution is not unheard of,
but would be uncommon unless there is a stong sfc low that
develops over the western gulf and moves north kinking the
boundary in the process but would still send the front through
the area after stalling it for a short time. And both models show
a sfc low that develops over the western gulf by Thursday, but
neither show this feature as becoming very strong. So, the gfs
solution with a somewhat slower timeline would prob be the ticket
here as the western gulf sfc low should be capable of slowing the
boundary atleast a little before moving through. And it wouldn't
be a bit surprising for future runs to show a late weekend fropa
with a reinforcing FROPA by mid next week.

Aviation
Wind speeds will rise after sunrise to around 15kt for most
terminals. These conditions already exist at new which is nw20kt.

Winds will ease during the evening and should be light overnight,
otherwiseVFR conditions will remain through this TAF cycle.

Marine...

small craft exercise caution in effect for the lakes and a small craft advisory
is in effect for the coastal waters through 7 pm today as winds increase to 20
knots behind a late october cold front along with strong high pressure building
in over the region. Winds will relax and become more easterly by midweek as surface
high slides northeastward and parks over the tennessee valley. This flow will
continue through the week until another approaching cold front moves into the
arklatex by late Thursday night and Friday morning.

Decision support
Dss code: blue.

Deployed: NWS office support city of new orleans for
building collapse.

Activation: none.

Activities: forecast support to new orleans for building collapse.

Small craft advisories.

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 73 46 71 47 0 0 0 0
btr 73 48 71 51 0 0 0 0
asd 76 48 73 52 0 0 0 0
msy 76 57 73 59 0 0 0 0
gpt 74 51 71 54 0 0 0 0
pql 76 48 73 52 0 0 0 0

Lix watches warnings advisories
La... None.

Gm... Small craft advisory from 7 am this morning to 7 pm cdt this
evening for gmz532-536-538-550-552-555-557-570-572-575-577.

Ms... None.

Gm... Small craft advisory from 7 am this morning to 7 pm cdt this
evening for gmz536-538-550-552-555-557-570-572-575-577.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWCL1 - 8761927 - New Canal, LA 4 mi54 min N 16 G 18
CARL1 10 mi54 min 71°F
FREL1 19 mi54 min N 8.9 G 12 66°F 1018.9 hPa
SHBL1 - 8761305 - Shell Beach, LA 25 mi60 min N 15 G 19 67°F 74°F1019.4 hPa
BYGL1 - 8762482 - Bayou Gauche, LA 27 mi60 min Calm G 1 61°F 73°F1019.9 hPa
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 43 mi60 min NNW 8.9 G 11 63°F 72°F

Wind History for New Canal Station, LA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
New Orleans, New Orleans Lakefront Airport, LA3 mi19 minN 1610.00 miFair68°F55°F63%1019.7 hPa
New Orleans, New Orleans International Airport, LA12 mi19 minN 910.00 miMostly Cloudy69°F55°F61%1020.6 hPa
New Orleans Naval Air Station - Alvin Callender Field, LA17 mi17 minN 810.00 miMostly Cloudy68°F55°F63%1020 hPa
Slidell, Slidell Airport, LA23 mi19 minNNW 510.00 miFair64°F59°F84%1020.1 hPa

Link to 5 minute data for KNEW

Wind History from NEW (wind in knots)
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Last 24hrS13SE8S8S7S12SW8S7S10S12SW15S14NW10W11W13W13NW19N21N20N16N18N16
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1 day agoE4NE5NE4NE7E8SE8SE8SE11SE9SE8S8SE6S5SE4SE6SE7S9S13S9SE8S7S7S9S7
2 days agoN6N6NW6W7W10W13W8W7W5SW3CalmSW4SW4SW4SW5W10W7SW4S3SW3SW3S3S3E3

Tide / Current Tables for New Canal USCG station, Lake Pontchartrain, Louisiana
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Paris Road Bridge, Mississippi River Delta, Louisiana
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Paris Road Bridge
Click for Map
Tue -- 12:52 AM CDT     Moonrise
Tue -- 07:06 AM CDT     Sunrise
Tue -- 09:14 AM CDT     1.41 feet High Tide
Tue -- 02:57 PM CDT     Moonset
Tue -- 06:21 PM CDT     Sunset
Tue -- 09:46 PM CDT     0.10 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.40.60.80.91.11.21.31.41.41.41.41.31.210.90.70.50.40.30.20.10.10.1

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 (10,2,3,4)
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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.