Monday, October23, 2017 L-36.com


Marine Weather and Tides
Violet, LA

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 7:06AMSunset 6:21PM Monday October 23, 2017 6:33 AM CDT (11:33 UTC) Moonrise 10:25AMMoonset 9:17PM Illumination 11% Phase: Waxing Crescent; Moon at 3 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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GMZ534 Lake Borgne- 407 Am Cdt Mon Oct 23 2017
Today..Northwest winds near 15 knots. Waves 2 to 3 feet. Dominant period 4 seconds.
Tonight..Northwest winds 10 to 15 knots. Waves 2 feet. Dominant period 4 seconds.
Tuesday..Northwest winds 15 to 20 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
Tuesday night..Northwest winds 15 to 20 knots. Waves 3 to 4 feet. Dominant period 4 seconds.
Wednesday..Northwest winds 10 to 15 knots. Waves 2 to 3 feet. Dominant period 4 seconds.
Wednesday night..North winds 10 to 15 knots. Waves 2 feet. Dominant period 4 seconds.
Thursday..North winds 5 to 10 knots becoming south in the late morning and afternoon. Waves 1 to 2 feet. Dominant period 4 seconds.
Thursday night..South winds 5 to 10 knots. Waves 1 foot.
Friday..South winds 5 to 10 knots. Waves 1 foot or less.
Friday night..South winds near 10 knots becoming northeast near 15 knots in the late evening. Waves 2 to 3 feet. Chance of showers and Thunderstorms.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 407 Am Cdt Mon Oct 23 2017
Synopsis..A cold front will continue to push south of the coastal waters and into the central gulf of mexico today. A secondary cold front will move through the coastal waters late tonight and early Tuesday. High pressure will settle over the area during the middle of the week and shift to the east Thursday into Friday. Another cold front will move through the region Friday night into Saturday.

7 Day Forecast for Marine Location Near Violet, LA
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location: 29.97, -89.7     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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Fxus64 klix 230845
afdlix
area forecast discussion
national weather service new orleans la
345 am cdt Mon oct 23 2017

Synopsis
A much quieter morning this morning with the cold front that
triggered yesterday's weather currently along a birmingham to
pensacola line. Upper low is near memphis at this time. Some low
clouds wrapping around upper low are noted on satellite over
mississippi, but most of the area is clear. Temperatures range
from the upper 50s across northwest sections of the area to 72 at
boothville. Dew points range from mid 50s to mid 60s.

Short term
Upper pattern is in the process of digging a deep trough into the
eastern third of the country. We should see abundant sunshine
across the area today with cooler temperatures than earlier in the
weekend. High temperatures today will be in the 70s, even with
full sunshine. Overnight lows will range from upper 40s to mid
50s.

A stronger shortwave will sweep through the area on Tuesday,
reinforcing the push of colder and drier air. Little in the way of
clouds or precipitation expected with the frontal passage. Highs
on Tuesday likely to be a few degrees cooler than today, but with
the frontal passage, late afternoon and early evening temperatures
could drop pretty quickly. Overnight lows Tuesday night will be
the coolest that we've seen since mid-march in many areas, with
lows near 40 expected across the northern half of the area.

Temperatures will only recover into the upper 60s on Wednesday. 35

Long term
Shortwave ridging builds across the area on Thursday, but will be
very short-lived as the upper trough over the great lakes reloads.

Gfs and ECMWF are definitely not on the same page regarding
temperatures and precipitation this weekend. ECMWF solution is
quite a bit wetter than the GFS for Friday night and Saturday. The
ecmwf also had significant temperature changes from it's previous
run. For now, will stay somewhat closer to the GFS solution, with
chance pop's Friday afternoon into Saturday. Confidence in
forecast solution beyond Friday is lower than normal, but we can
comfortably say that temperatures will be below normal Saturday
and Sunday. Not totally out of the question that some areas could
see lows in the 30s Sunday morning. 35

Aviation
GenerallyVFR category conditions will prevail at the terminals
through the TAF forecast period. However, a brief period of MVFR or
even ifr category ceilings may impact kgpt, kmcb and perhaps kasd
early this morning. Breezy northwest to north winds can be expected
at times through the day today, especially at kmsy and knew. 11

Marine
Moderate to strong offshore flow will prevail across the coastal
waters through Wednesday. The winds across the coastal waters today
will be borderline for small craft advisory conditions. Somewhat
stronger winds are expected Tuesday and Tuesday night with another
surge of cooler air. The winds will diminish by Wednesday night as
high pressure becomes situated directly over the area and then shift
to onshore on Thursday as the high quickly moves off to the east.

Another cold front will move across the coastal waters Friday night
into Saturday. 11

Decision support
Dss code: blue.

Deployed: none.

Activation: none.

Activities: monitoring river flooding
small craft advisory today for coastal waters
louisiana and extreme southwest mississippi.

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 74 48 71 41 0 10 0 0
btr 75 48 73 43 0 0 0 0
asd 76 48 74 39 0 0 0 0
msy 75 55 74 51 0 0 0 0
gpt 76 51 74 43 0 10 0 0
pql 76 49 74 39 0 10 0 0

Lix watches warnings advisories
La... None.

Gm... Small craft advisory until 6 pm cdt this evening for gmz536-538-
550-552-555-557-570-572-575-577.

Ms... None.

Gm... Small craft advisory until 6 pm cdt this evening 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
SHBL1 - 8761305 - Shell Beach, LA 7 mi52 min NW 17 G 19 66°F 76°F1016.4 hPa
NWCL1 - 8761927 - New Canal, LA 22 mi46 min NNW 5.1 G 13 66°F 75°F1016.9 hPa
CARL1 23 mi46 min 75°F
OSTF1 - Stennis Test Facility 27 mi44 min NNW 3.9 G 5.8 60°F 1016.8 hPa (+0.6)59°F
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 32 mi52 min NW 14 G 17 61°F 73°F1015.8 hPa
FREL1 39 mi46 min WNW 1.9 G 5.1 61°F 1016.2 hPa59°F
BYGL1 - 8762482 - Bayou Gauche, LA 40 mi46 min NW 2.9 G 5.1 60°F 74°F1017.4 hPa

Wind History for Shell Beach, LA
(wind in knots)    EDIT      (on/off)   Help
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NE13
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G15
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E8
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
New Orleans, New Orleans Lakefront Airport, LA18 mi41 minno data miPartly Cloudy0°F0°F%1016.4 hPa

Wind History from ASD (wind in knots)
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Last 24hrCalmN8NE5NE44CalmNW11
G26
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G18
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N7N7CalmCalmCalmNW3N3CalmCalm3NW4Calm3NW3Calm
1 day agoNE3E4E6E6E3SE10
G15
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G21
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E9E6SE7SE9E7SE6E34E4NE4NE4
2 days agoNE3NE4NE4NE6E7E6E6E10
G15
E6SE3E6E8E5E3E4CalmNE3E4E4N3CalmCalmCalmNE3

Tide / Current Tables for Shell Beach, Lake Borgne, Louisiana
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Shell Beach
Click for Map
Mon -- 04:18 AM CDT     1.53 feet High Tide
Mon -- 07:06 AM CDT     Sunrise
Mon -- 10:24 AM CDT     Moonrise
Mon -- 03:46 PM CDT     0.24 feet Low Tide
Mon -- 06:19 PM CDT     Sunset
Mon -- 09:17 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.11.31.41.51.51.51.51.41.210.90.70.50.40.30.30.20.30.30.40.50.70.80.9

Tide / Current Tables for Chef Menteur, Chef Menteur Pass, Louisiana
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Chef Menteur
Click for Map
Mon -- 04:41 AM CDT     1.48 feet High Tide
Mon -- 07:06 AM CDT     Sunrise
Mon -- 10:25 AM CDT     Moonrise
Mon -- 03:34 PM CDT     0.41 feet Low Tide
Mon -- 06:19 PM CDT     Sunset
Mon -- 09:17 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.11.21.31.41.51.51.41.41.21.10.90.80.60.50.50.40.40.40.50.60.60.70.81

Weather Map and Satellite Images
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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 (7,2,3,4)
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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.