Thursday, March21, 2019 L-36.com


Marine Weather and Tides
New Orleans, LA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:01AMSunset 7:13PM Thursday March 21, 2019 5:41 PM CDT (22:41 UTC) Moonrise 7:09PMMoonset 6:42AM Illumination 99% Phase: Waning Gibbous; Moon at 16 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- 400 Pm Cdt Thu Mar 21 2019
Tonight..West winds 10 to 15 knots becoming north 5 to 10 knots after midnight. Waves 1 to 2 feet. Dominant period 4 seconds.
Friday..Northeast winds 5 to 10 knots becoming west in the afternoon. Waves 1 foot or less. Dominant period 4 seconds.
Friday night..South winds near 5 knots becoming northeast after midnight. Waves less than 1 foot. Dominant period 4 seconds.
Saturday..Southeast winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Saturday night..Southeast winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Sunday..Southeast winds near 5 knots. Waves less than 1 foot. Dominant period 4 seconds.
Sunday night..South winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds.
Monday..South winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms through the day.
Monday night..Southwest winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of Thunderstorms in the evening. Chance of showers through the night.
Tuesday..Northwest winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Tuesday night..North winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 400 Pm Cdt Thu Mar 21 2019
Synopsis..High pressure will build over the central gulf coast region through Friday then move slowly east through Monday. A cold front is expected to move through the coastal waters Monday night.


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 212029
afdlix
area forecast discussion
national weather service new orleans la
329 pm cdt Thu mar 21 2019

Discussion
The weather conditions will continue to be pleasant through the
weekend. A high pressure system, which has moved through our area
for the beginning of the week, will continue eastward through the
weekend. This high pressure system will cause the winds to be
northerly through Sunday into Monday. This northerly wind helps
add to the subsidence and lack of lift caused by upper level
convergence. So, through Sunday the atmosphere is expected to be
mostly stable with no showers.

As this high pressure system moves out of the area, the winds
will shift from having a northerly component to a southerly
component. This wind shift from the south will cause warm air
advection into the area, which in turn will enhance the moisture
and lift in the area. In addition, these winds from the south
will allow for some directional shear to be present in the
atmosphere as well. A low pressure system is expected to move into
the area at the beginning of the next week, mainly Monday and
Tuesday. The models show uncertainty in the amount of speed shear
present. Ultimately, the amount of speed shear will be dependent
upon the strength of the frontal system and the jet stream. There
is expected to be upper level divergence in the area Monday
morning, which will also enhance the amount of uplift in the area.

Mid-level winds leading up to and during the passage of this cold
front are northerly, which is indicative of cold air advection.

The presence of this cold air in the mid-levels will cause the
lapse rates to be higher, which raises the chance of a
thunderstorm or two occurring during the passage of this frontal
system. In summary, a wind shift from northerly to southerly will
allow for some uplift and shear in the area to begin building at
the end of this weekend. Ahead of the frontal system on Monday the
winds and lift are still expected to enhance the atmosphere to be
favorable for the development of some showers and a few
thunderstorms as the frontal system propagates through our area
Monday into Tuesday.

After the cold front passes Tuesday, the atmospheric pattern is
expected to be neutral, and the environment is expected to return
to the normal diurnal pattern into Wednesday of next week. Msw

Aviation
Very favorable terminal conditions will continue with clear skies
and excellent visibility expected through Friday. 22 td

Marine
High pressure will build into the central gulf coast region
through Friday before moving east across the atlantic coast over
the weekend. The pressure gradient will continue to support
northwest to west winds up in 10 to 15 knots to locally stronger
range at times through tonight and early Friday morning. A weak
pressure gradient should allow wind speeds to drop to around 10
knots or less across most waters by late Friday morning and
continuing through Sunday as they veer around to east then
southeast. Southerly winds mostly around 10 knots are expected on
Monday, then the next moderate strength cold front is expected to
push through the area Monday night. This will cause winds to shift
to west then northwest and north late Monday night through
Tuesday night with speeds up at least around 15 knots. 22 td

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

Preliminary point temps pops
Mcb 44 72 44 75 0 0 0 0
btr 46 75 48 75 0 0 0 0
asd 43 72 45 75 0 0 0 0
msy 51 71 52 75 0 0 0 0
gpt 48 71 49 71 0 0 0 0
pql 43 72 43 74 0 0 0 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
NWCL1 - 8761927 - New Canal, LA 4 mi48 min W 5.1 G 7 67°F 60°F1018.3 hPa
CARL1 10 mi48 min 51°F
FREL1 19 mi48 min WNW 2.9 G 9.9 72°F 1017.3 hPa
SHBL1 - 8761305 - Shell Beach, LA 25 mi48 min WNW 16 G 19 67°F 65°F1018.3 hPa
BYGL1 - 8762482 - Bayou Gauche, LA 27 mi48 min WNW 9.9 G 12 69°F 64°F1018.8 hPa
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 43 mi48 min NNW 11 G 17 70°F 63°F1017.3 hPa

Wind History for New Canal Station, LA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
New Orleans, New Orleans Lakefront Airport, LA3 mi49 minW 1010.00 miFair66°F46°F50%1017.8 hPa
New Orleans, New Orleans International Airport, LA12 mi49 minWNW 910.00 miFair72°F37°F28%1018.6 hPa
New Orleans Naval Air Station - Alvin Callender Field, LA17 mi1.8 hrsWNW 5 G 1510.00 miFair70°F41°F35%1018.3 hPa
Slidell, Slidell Airport, LA23 mi49 minSW 710.00 miFair71°F37°F30%1017.6 hPa

Wind History from NEW (wind in knots)
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Last 24hrW5W5S4S5SW4SW7SW7SW8W10NW15N13N10N13N11N9N8NW6W7W8W10W9W7W7W10
1 day agoCalmE3SE5SE4E4CalmSE3CalmNE7NE7NE10NE11NE11NE11NE10NE9NE7N5NW6NW7W9W7W7W5
2 days agoNE5NE4CalmNE4NE6NE6E9NE12NE14NE15NE16NE18NE19E15NE18NE16NE15NE13NE10NE4NW4W4W5W4

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
Thu -- 04:44 AM CDT     0.68 feet High Tide
Thu -- 07:02 AM CDT     Sunrise
Thu -- 07:41 AM CDT     Moonset
Thu -- 02:06 PM CDT     0.29 feet Low Tide
Thu -- 04:58 PM CDT     0.33 feet High Tide
Thu -- 07:11 PM CDT     Sunset
Thu -- 08:08 PM CDT     Moonrise
Thu -- 11:46 PM CDT     0.22 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.50.60.60.70.70.70.60.60.50.40.40.30.30.30.30.30.30.30.30.30.30.20.2

Weather Map and Satellite Images
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wmap_A
GOES 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 (18,4,5,8)
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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.