Thursday, April26, 2018 L-36.com


Marine Weather and Tides
Lafitte, LA

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
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.

Sunrise 6:20AMSunset 7:36PM Thursday April 26, 2018 6:26 AM CDT (11:26 UTC) Moonrise 3:30PMMoonset 3:30AM Illumination 85% Phase: Waxing Gibbous; Moon at 11 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
    EDIT      (on/off)   Help
GMZ538 Chandeleur Sound-breton Sound- 339 Am Cdt Thu Apr 26 2018
.small craft exercise caution in effect until 1 pm cdt this afternoon...
Today..West winds 15 to 20 knots. Waves 3 to 5 feet. Dominant period 4 seconds. Slight chance of Thunderstorms early in the morning. Chance of showers in the morning.
Tonight..North winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
Friday..Northwest winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Slight chance of showers and Thunderstorms in the afternoon.
Friday night..North winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds.
Saturday..North winds 5 to 10 knots becoming east early in the afternoon, then becoming south late in the afternoon. Waves 1 to 2 feet. Dominant period 4 seconds.
Saturday night..West winds 5 to 10 knots becoming north 10 to 15 knots after midnight. Waves 1 to 2 feet. Dominant period 4 seconds.
Sunday..East winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Sunday night..East winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds.
Monday..East winds 15 to 20 knots. Waves 2 to 4 feet.
Monday night..Southeast winds 15 to 20 knots. Waves 3 to 5 feet. Slight chance of showers and Thunderstorms.
GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 339 Am Cdt Thu Apr 26 2018
Synopsis..A cold front will move quickly through the the coastal waters this morning. Another fast-moving cold front will sweep through the coastal waters Friday. High pressure will then settle over the coastal waters for the upcoming weekend.

7 Day Forecast for Marine Location Near Lafitte, LA
   Hourly   EDIT   Help
location: 29.54, -90.06     debug


Area Discussion for - New Orleans/Baton Rouge, LA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus64 klix 260851
afdlix
area forecast discussion
national weather service new orleans la
351 am cdt Thu apr 26 2018

Short term
Line of robust thunderstorms moving through the area should begin
to weaken as they approach coastal mississippi this morning. The
high pop numbers are only for the morning hours just after
sunrise. Once the line of sh TS moves through, pop numbers will
drop to near zero. These short wave features in northwest flow
patterns are often stronger than what models normally suggest and
this mornings activity is no exception to that rule. Dry air and
suppresion should keep any of this from becoming severe but a few
of these could be strong with winds of 30mph or better as they
move through.

The next short wave feature moves through Friday. Eventhough these
thunderstorms will be on the low end of scattered over the
area, they could contain hail. Limited moisture and low vertical
extend should keep hail from become large enough for severe. But
the possibility that one or two of these could become severe will
exist. Any thunderstorm activity will begin to decay during the
late afternoon into early evening.

A back door front will move to the area before stalling Sunday and
Monday. Some of the dry air will filter from east to west but this
will be short lived as moisture return will begin on southeast
winds by Tuesday. This will occur ahead of the next cold front
that should move into the area by the end of the week.

Aviation
A fast moving cold front is pushing through the area brining showers
and a few thunderstorms across the area, especially north of the i-
12 corridor. Ceilings are beginning to lower in many locations along
with winds of 25-30 knots as the stronger line passes through.

Behind the rain and the front, conditions will improve for this
afternoon.

Marine
A cold front will slide through the coastal waters this morning
increasing winds slightly. Extended exercise caution headlines until
early this afternoon (18z) and will let the day shift monitor for
any further extension that might be needed. Progressive upper level
pattern will bring yet another frontal boundary through the coastal
waters tomorrow. This will push winds back to 15 knots over the open
gulf waters for Friday evening through early Saturday. Surface high
pressure will track from west to east across the southeastern conus
this weekend. This will cause winds to rotate around from NW to se.

Onshore flow regime will settle in for the first half of next week.

Wind speeds will gradually increase due to tightening pressure
gradient.

Decision support
Dss code: blue.

Deployed: none.

Activation: none.

Activities: sandhill crane nwr outreach support
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; direct tropical threats; events of
national significance.

Preliminary point temps pops
Mcb 70 52 73 53 30 10 30 10
btr 72 54 75 55 30 10 30 10
asd 73 54 74 56 70 10 30 10
msy 73 59 74 60 70 10 30 10
gpt 74 56 74 59 50 10 20 10
pql 74 54 74 56 40 10 20 10

Lix watches warnings advisories
La... None.

Gm... None.

Ms... None.

Gm... None.



Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
GISL1 - 8761724 - Grand Isle, LA 20 mi39 min W 16 G 19 72°F 72°F1012.1 hPa
BYGL1 - 8762482 - Bayou Gauche, LA 26 mi39 min WSW 4.1 G 7 68°F 75°F1012 hPa
CARL1 27 mi39 min 59°F
KXPY 30 mi32 min W 11 G 17 72°F 66°F
SHBL1 - 8761305 - Shell Beach, LA 31 mi45 min WSW 8.9 G 13 68°F 76°F1011.8 hPa
NWCL1 - 8761927 - New Canal, LA 34 mi39 min WSW 11 G 16 70°F 73°F1011.4 hPa
KDLP 40 mi32 min WNW 8.9 G 21 72°F 68°F
FREL1 44 mi45 min WNW 1.9 G 8.9 65°F 1011 hPa
LOPL1 - Louisiana Offshore Oil Port, LA 45 mi48 min WNW 9.9 G 9.9 71°F 2 ft1013.1 hPa
PILL1 49 mi39 min WNW 8 G 8.9 66°F 59°F1012.2 hPa

Wind History for Grand Isle, LA
(wind in knots)    EDIT      (on/off)   Help
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
Last
24hr
NW5
N5
G8
N7
N6
NE4
G7
NW3
N3
W3
N6
G11
N8
S3
G6
SW6
G11
W10
G13
W11
W11
G14
W11
G14
W13
G16
W8
G11
SW5
G8
SW7
G10
W9
G16
W12
G17
W13
G17
W14
G18
1 day
ago
NW3
N3
N7
N5
G10
NW6
NW7
W6
G9
W7
W9
G12
W11
W8
G12
W9
G13
N8
G11
N10
N8
G11
N9
G13
N12
NE12
NE10
G15
NE11
NE7
N7
N6
N6
G9
2 days
ago
NW8
G11
NW9
NW9
G12
W13
G19
W16
G20
W11
G16
W13
G18
W14
NW12
G15
NW12
G16
NW13
G16
NW10
NW9
NW5
NW4
N2

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Galliano, South Lafourche Airport, LA13 mi32 minWSW 10 G 1510.00 miFair70°F62°F76%1012.2 hPa
New Orleans Naval Air Station - Alvin Callender Field, LA20 mi32 minWSW 8 G 157.00 miOvercast69°F66°F93%1011.5 hPa

Wind History from GAO (wind in knots)
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
Last 24hrCalmCalmCalmN3NE4NE4NE4N5NW6NW5CalmSW9SW8SW6W6W4W4W4SW5SW5SW4W10W10
G14
W9
1 day agoCalmCalmNW4NW8N6NW4NW4W10
G14
W10
G15
W8
G17
W8
G15
NW5N9N7NW5CalmCalmN3CalmCalmCalmCalmCalmCalm
2 days agoCalmCalmW4NW6W9W11W13
G18
SW13
G18
W13
G17
SW13
G17
SW15SW13W12
G16
W9W5W4W3W3W5N4CalmCalmCalmCalm

Tide / Current Tables for Manilla, Mississippi River Delta, Louisiana
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Manilla
Click for Map
Thu -- 04:29 AM CDT     Moonset
Thu -- 06:22 AM CDT     Sunrise
Thu -- 07:43 AM CDT     0.25 feet Low Tide
Thu -- 02:15 PM CDT     0.45 feet High Tide
Thu -- 04:29 PM CDT     Moonrise
Thu -- 05:37 PM CDT     0.45 feet Low Tide
Thu -- 07:33 PM CDT     Sunset
Thu -- 10:40 PM CDT     0.54 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.60.50.40.40.30.30.30.30.30.30.40.40.40.50.50.40.40.40.50.50.50.50.5

Tide / Current Tables for Independence Island, Mississippi River Delta, Louisiana
   EDIT      (on/off)   Help   One Week of Data
Independence Island
Click for Map
Thu -- 04:28 AM CDT     Moonset
Thu -- 06:22 AM CDT     Sunrise
Thu -- 06:29 AM CDT     0.23 feet Low Tide
Thu -- 02:12 PM CDT     0.41 feet High Tide
Thu -- 04:23 PM CDT     0.41 feet Low Tide
Thu -- 04:29 PM CDT     Moonrise
Thu -- 07:33 PM CDT     Sunset
Thu -- 10:37 PM CDT     0.49 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50.50.40.30.30.20.20.20.30.30.30.40.40.40.40.40.40.40.40.40.50.50.50.5

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for New Orleans/Baton Rouge, LA (7,2,3,4)
      (on/off)   Help

Ground Weather Radar Station New Orleans/Baton Rouge, LA
   (on/off)   Help
weather_mapweather_map weather_map

Gulf Stream Current


Ad by Google

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.