Saturday, June24, 2017 L-36.com


Marine Weather and Tides
Chalmette, LA

Version 3.4
What's New / NOTES
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 5:59AMSunset 8:05PM Saturday June 24, 2017 12:28 AM CDT (05:28 UTC) Moonrise 6:38AMMoonset 8:45PM Illumination 0% Phase: New Moon; Moon at 0 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 Mississippi Sound-lake Borgne- 1008 Pm Cdt Fri Jun 23 2017
Rest of tonight..South winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Saturday..South winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Saturday night..Southwest winds 10 to 15 knots becoming west 5 to 10 knots after midnight. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Sunday..Northeast winds 5 to 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Sunday night..Northeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Monday..East winds 5 to 10 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Monday night..East winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Tuesday..Southeast winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Tuesday night..Southeast winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms.
Wednesday..Southeast winds 10 to 15 knots. Waves 2 to 4 feet. Chance of showers and Thunderstorms.
Wednesday night..Southeast winds 10 to 15 knots. Waves 2 to 4 feet. Chance of showers and Thunderstorms.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 1008 Pm Cdt Fri Jun 23 2017
Synopsis..A cold front should move into the coastal waters early next week before stalling and weakening.

7 Day Forecast for Marine Location Near Chalmette, LA
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location: 30, -89.93     debug


Area Discussion for - New Orleans/Baton Rouge, LA
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Fxus64 klix 232108
afdlix
area forecast discussion
national weather service new orleans la
408 pm cdt Fri jun 23 2017

Short term
Southwesterly flow in place across the area in response to the
broad circulation of remnant cindy currently moving into the ohio
valley. The frontal zone is being drawn southward with an
extensive coverage of convection reaching central louisiana. This
convection will likely continue into the evening and quite
possibly overnight. The hrrr runs this afternoon is advocating an
outflow qlcs advancing southward after midnight, but other models
are focused mainly along the frontal zone itself. Will maintain
40-50 percent in the overnight, then carry into Saturday. The rain
trends will have to be closely monitored for echo training as
efficient tropical airmass becomes involved with the frontal zone
that will probably be moving on the impetus of the convection.

Frontal zone stalls out for continued chances of rain Sunday.

Temperatures will vary widely depending on rain coverage but
generally in the upper 80s for highs though one or two locations
may attain 90 either day.

Long term
Models show enough troughing aloft to possibly push the front into
the north gulf for a very brief dry period Monday before moist
begins to surge northward Tuesday. Bermuda ridge regime becomes
established to bring the area under a more typical summer sea
breeze pattern for the latter part of the forecast period. 24 rr

Aviation
A very moist and unstable pattern will continue to bring widespread
showers and storms into the area. Convection will continue to
increase from NW to se... Peaking between 2100 and 00z this evening
bringing conditions down from MVFR to ifr during the heavier storms.

Convection expected to gradually diminish after 02z. Lower ceilings
expected to drop down below 2000 feet between 06 and 12z. Convection
will begin to refire after 15z on Saturday and continue to become
more widespread throughout the late morning into the afternoon
hours.

Marine
Winds and seas are finally relaxing from the affects of cindy with
more favorable conditions this weekend as pressure gradient
relaxes. Frontal zone not expected to push much into the gulf
before stalling and drawn northward early next week, thereby
onsetting a steady state onshore flow pattern for the rest of the
week.

Decision support
Dss code: blue.

Deployed: none.

Activation: none.

Activities: monitoring hydro convective trends
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 73 84 71 83 50 80 50 60
btr 75 87 73 84 40 80 50 60
asd 75 88 74 84 40 50 40 60
msy 76 88 75 84 40 50 30 60
gpt 76 86 75 83 40 40 40 60
pql 74 87 73 84 20 50 50 50

Lix watches warnings advisories
La... Coastal flood advisory until 4 pm cdt this afternoon for laz040-
050-058-060>062-064-066>070-072.

Gm... Small craft advisory until 4 pm cdt this afternoon for gmz532-
534-536-538-550-552-555-557-570-572-575-577.

Ms... Coastal flood advisory until 4 pm cdt this afternoon for
msz080>082.

Gm... Small craft advisory until 4 pm cdt this afternoon for gmz534-
536-538-550-552-555-557-570-572-575-577.

24 rr


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWCL1 - 8761927 - New Canal, LA 10 mi41 min SSW 8 G 12 82°F 83°F1015.6 hPa
CARL1 12 mi41 min 81°F
SHBL1 - 8761305 - Shell Beach, LA 16 mi41 min SSW 9.9 G 13 81°F 84°F1015.9 hPa
FREL1 27 mi41 min S 4.1 G 5.1 81°F 1014.6 hPa79°F
BYGL1 - 8762482 - Bayou Gauche, LA 30 mi41 min Calm G 2.9 80°F 84°F1015.9 hPa
OSTF1 - Stennis Test Facility 30 mi39 min S 1.9 G 3.9 81°F 1016.2 hPa (+1.6)79°F
WYCM6 - 8747437 - Bay Waveland Yacht Club, MS 39 mi41 min SW 8 G 12 81°F 79°F1015.8 hPa

Wind History for New Canal Station, LA
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Last
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S7
G12
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G15
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G18
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G29
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NE24
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G10
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G10
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G12
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
New Orleans, New Orleans Lakefront Airport, LA6 mi36 minS 98.00 miOvercast82°F78°F88%1015.1 hPa
New Orleans Naval Air Station - Alvin Callender Field, LA13 mi34 minSSW 5 miOvercast0°F0°F%1015.6 hPa
New Orleans, New Orleans International Airport, LA17 mi36 minS 58.00 miMostly Cloudy80°F78°F94%1015.8 hPa

Wind History from NEW (wind in knots)
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Last 24hrS16S13S17S16S15S13S12S14S19S19S16S14S15S13S17S13SW13SW14
G22
S13S13S14S12S10S9
1 day agoSE18
G26
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2 days agoNE32
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NE31NE23NE25NE19E14E11SE12SE19
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G30

Tide / Current Tables for Paris Road Bridge, Mississippi River Delta, Louisiana
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Paris Road Bridge
Click for Map
Sat -- 03:00 AM CDT     -0.35 feet Low Tide
Sat -- 06:00 AM CDT     Sunrise
Sat -- 06:38 AM CDT     Moonrise
Sat -- 03:35 PM CDT     1.55 feet High Tide
Sat -- 08:04 PM CDT     Sunset
Sat -- 08:45 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.1-0.2-0.3-0.3-0.3-0.2-0.10.10.30.50.70.91.11.31.41.51.51.51.41.210.70.50.2

Tide / Current Tables for Chef Menteur, Chef Menteur Pass, Louisiana
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Chef Menteur
Click for Map
Sat -- 01:36 AM CDT     -0.46 feet Low Tide
Sat -- 05:59 AM CDT     Sunrise
Sat -- 06:37 AM CDT     Moonrise
Sat -- 03:22 PM CDT     1.46 feet High Tide
Sat -- 08:04 PM CDT     Sunset
Sat -- 08:44 PM CDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.4-0.4-0.5-0.4-0.3-0.100.20.40.60.811.21.31.41.51.41.41.210.80.50.2-0

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 (1,6,7,8)
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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.