Marine Weather and Tides
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 6:00AM||Sunset 8:06PM||Wednesday June 28, 2017 2:11 AM CDT (07:11 UTC)||Moonrise 10:52AM||Moonset 11:55PM||Illumination 18%|
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|GMZ538 Chandeleur Sound-breton Sound- 953 Pm Cdt Tue Jun 27 2017 |
Rest of tonight..East winds 10 knots. Waves 1 foot or less. Dominant period 4 seconds. Slight chance of showers and Thunderstorms after midnight.
Wednesday..Southeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms in the morning, then showers and Thunderstorms likely in the afternoon.
Wednesday night..Southeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Thursday..Southeast winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Showers and Thunderstorms likely.
Thursday night..South winds 10 to 15 knots. Waves 2 to 4 feet. Dominant period 4 seconds. Showers and Thunderstorms likely in the evening, then chance of showers and Thunderstorms after midnight.
Friday..South winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms.
Friday night..Southwest winds 10 to 15 knots. Waves 1 to 2 feet. Dominant period 4 seconds. Chance of showers and Thunderstorms in the evening.
Saturday..South winds 5 to 10 knots. Waves 1 foot or less.
Saturday night..Southwest winds 10 to 15 knots. Waves 1 foot or less.
Sunday..South winds 5 to 10 knots. Waves 1 foot or less.
Sunday night..Southwest winds 5 to 10 knots. Waves 1 foot or less.
|GMZ500 Synopsis Pascagoula To Sw Pass Mississippi- Synopsis Sw Pass Mississippi River To Atchafalaya River- 953 Pm Cdt Tue Jun 27 2017 |
Synopsis..A stationary front will linger along the coast of louisiana and mississippi through Thursday. The front should then push back inland by Friday allowing high pressure to build from the atlantic for the upcoming weekend.
7 Day Forecast for Marine Location Near Port Sulphur, LAHourly EDIT Help
Area Discussion for - New Orleans/Baton Rouge, LA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus64 klix 280443|
area forecast discussion
national weather service new orleans la
1143 pm cdt Tue jun 27 2017
Convection is expected to develop and expand in coverage mainly
after 17z at nearly all terminals. Otherwise,VFR conditions are
expected outside convection where ifr to MVFR conditions are
likely. Downburst wind potential around 35 knots Wednesday. 24 rr
Prev discussion issued 309 pm cdt Tue jun 27 2017
a stationary front lingering just off the louisiana coast will
slowly push inland tonight and tomorrow morning in response to an
approaching upper level vorticity MAX slowly ejecting out of texas
and the western gulf. A weak mid-level reflection of this upper
level feature will also assist in pushing the stalled boundary
inland over the 24 hours. Forcing along this boundary combined
with favorable jet dynamics and lift aloft will allow for
increased rain chances beginning late tonight for areas south of
i-10 and then expanding across the entire forecast area by
tomorrow afternoon. Pop should remain fairly low tonight, but is
expected to rise into the 50 to 70 percent range by tomorrow
afternoon. Highest pop will be nearest the boundary south of the
i-10 corridor tomorrow afternoon. With extensive cloud cover and
convective activity around, afternoon highs will remain held in
check with readings only expected in the middle 80s.
A slight decrease in convective activity should occur tomorrow
night as temperatures cool back into the middle 70s, but decent
mid and upper level omega values will support continued convective
activity near the low level boundary through the night. Have high
end chance pop around 50 percent areas along and south of the i-10
corridor to reflect this continued convective risk. Thursday
should be the most active day in terms of overall convective
coverage as the low level boundary will draped along the i-10
corridor and the upper level trough axis will be directly over the
region. Ample forcing and instability will be in place as
temperatures rise back into the middle 80s. Have likely pop of
around 70 percent in the forecast for the entire region. Severe
weather threat should be fairly limited, but above average
precipitable water values and mixing ratios support some locally
heavy downpours and possible street flooding issues on Thursday.
The upper level trough will begin to shear out and weaken Thursday
night and Friday and the weak low level boundary will continue to
shift further inland over this period. As a result, overall rain
potential will begin to decrease on Friday. Expect to see slight
chance and low end chance pop Thursday night as temperatures cool
off and overall instability decreases, and then a return to more
scattered to numerous showers and thunderstorms by Friday
afternoon as lingering moisture and ample instability combines
with the weaker omega aloft to produce a pop of 40 to 60 percent.
a more normal summer weather pattern will become established by
Saturday and then remain in place through early next week. A broad
ridge will extend westward across the eastern and central gulf
from the western atlantic through the period placing the area on
the western side of this ridge. Deep layer southerly flow in the
low levels will take hold of the area resulting in warm and muggy
conditions each day. However, the influence of the ridge in the
upper levels will introduce some subsidence and drier air in the
mid and upper levels. This will produce a weak mid-level cap which
will inhibit most convective activity. However, localized forcing|
mechanisms associated with the seabreeze cycle should allow for a
general 20 to 30 percent pop and isolated to scattered convection
each afternoon as temperatures climb into the lower 90s. The
convection should dissipate fairly quickly in the evening as
temperatures cool into the 80s and then middle to upper 70s
resulting in mainly dry conditions each night.
tafs will continue to show mostly quiet conditions with
a great deal of mid and high clouds over the area but can't
completely rule out low CIGS that may lead to MVFR for a very short
time. This afternoon. Very light showers are mainly located south of
the coast but a stray shower or two could impact hum. Other than
that look forVFR conditions to remain. Cab
no change in the thinking as winds should begin to
slowly veer around tonight with onshore flow returning by tomorrow.
Onshore flow will be in place through the remainder of the forecast
maybe picking up to 10 to 15 knots at times but overall the onshore
should remain weak for most of the forecast. Other concern will be
convection that should impact at least the near shore waters each
dss code: blue.
Activities: monitoring hydro
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 68 86 70 83 10 50 30 70
btr 70 86 71 85 10 60 40 70
asd 72 85 73 82 10 60 50 70
msy 74 83 74 84 20 70 60 70
gpt 74 84 74 82 10 50 50 70
pql 73 84 73 82 10 50 50 70
Lix watches warnings advisories
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|SHBL1 - 8761305 - Shell Beach, LA||19 mi||42 min||E 6 G 7||80°F||84°F||1015.8 hPa|
|GISL1 - 8761724 - Grand Isle, LA||29 mi||42 min||ESE 8 G 11||81°F||84°F||1015.3 hPa|
|KDLP||33 mi||37 min||E 12||84°F||73°F|
|PILL1||35 mi||42 min||E 2.9 G 5.1||78°F||81°F||1015.2 hPa|
|CARL1||36 mi||42 min||81°F|
|GRBL1||39 mi||132 min||ESE 8 G 9.9||1015.5 hPa (+0.6)|
|NWCL1 - 8761927 - New Canal, LA||39 mi||42 min||SE 1 G 1.9||78°F||83°F||1015.6 hPa|
|BYGL1 - 8762482 - Bayou Gauche, LA||44 mi||42 min||ENE 1 G 1.9||77°F||84°F||1015.8 hPa|
|KXPY||45 mi||37 min||E 5.1||81°F||72°F|
|KMIS||46 mi||37 min||ESE 11|
|PSTL1 - 8760922 - Pilot's East, SW Pass, LA||48 mi||42 min||E 12 G 14||82°F|
|BURL1 - Southwest Pass, LA||49 mi||72 min||ESE 11 G 12||82°F||1015.7 hPa (-0.3)||72°F|
Wind History for Shell Beach, LA(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Boothville, LA||22 mi||21 min||E 4||10.00 mi||Fair||80°F||73°F||82%||1015.5 hPa|
Wind History from BVE (wind in knots)
|1 day ago||E||Calm||NE||E||E||E||NE||E||E||E||E||NE||E||E||E||E||E||E||E||Calm||Calm||SE||Calm||Calm|
|2 days ago||Calm||Calm||Calm||NW||Calm||N||N||NW||Calm||NE||NE||N||NE||NE||NE||NE||NE||E||N||Calm||Calm||E|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|Bay Gardene |
Click for Map
Wed -- 02:19 AM CDT -0.14 feet Low Tide
Wed -- 06:00 AM CDT Sunrise
Wed -- 10:52 AM CDT Moonrise
Wed -- 03:41 PM CDT 1.31 feet High Tide
Wed -- 08:02 PM CDT Sunset
Wed -- 11:55 PM CDT Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|Gardner Island |
Click for Map
Wed -- 01:02 AM CDT 0.00 feet Low Tide
Wed -- 05:59 AM CDT Sunrise
Wed -- 10:51 AM CDT Moonrise
Wed -- 02:00 PM CDT 1.50 feet High Tide
Wed -- 08:01 PM CDT Sunset
Wed -- 11:54 PM CDT Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images(on/off)  Help
|Weather Map ||IR Satellite Image from GEOS|
GOES Local Image of Southeast EDIT
Wind Forecast for New Orleans/Baton Rouge, LA (3,6,7,8)(on/off)  Help
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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.