Sunday, August19, 2018 L-36.com


Marine Weather and Tides
New Roads, LA

Version 3.4
What's New / NOTES
7/21/2018 Trying to make page Mobile Friendly

Sunrise 6:33AMSunset 7:42PM Sunday August 19, 2018 9:04 AM CDT (14:04 UTC) Moonrise 1:52PMMoonset 12:00AM Illumination 56% Phase: First Quarter Moon; Moon at 8 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
GMZ435 Vermilion Bay- 348 Am Cdt Sun Aug 19 2018
Today..Southwest winds 5 to 10 knots. Bay waters a light chop. Chance of showers and Thunderstorms.
Tonight..Southwest winds 5 to 10 knots. Bay waters a light chop. Chance of showers and Thunderstorms after midnight.
Monday..Southwest winds 5 to 10 knots. Bay waters a light chop. Chance of showers and Thunderstorms in the morning, then showers and Thunderstorms likely in the afternoon.
Monday night..Southwest winds 5 to 10 knots. Bay waters a light chop. Slight chance of showers and Thunderstorms after midnight.
Tuesday..West winds 5 to 10 knots. Bay waters a light chop. Showers and Thunderstorms likely in the morning, then chance of showers and Thunderstorms in the afternoon.
Tuesday night..West winds 5 to 10 knots. Bay waters a light chop. Slight chance of showers and Thunderstorms in the evening, then chance of showers and Thunderstorms after midnight.
Wednesday..Northwest winds around 5 knots. Bay waters smooth. Chance of showers and Thunderstorms.
Wednesday night..North winds around 5 knots. Bay waters smooth. Slight chance of showers.
Thursday..Northeast winds around 5 knots. Bay waters smooth. Slight chance of showers and Thunderstorms.
Thursday night..North winds around 5 knots. Bay waters smooth.
GMZ400 Synopsis For Lower Atchafalaya River La To High Island Tx Out 60 Nm Including Sabine And Calcasieu Lakes And Vermilion Bay 348 Am Cdt Sun Aug 19 2018
Synopsis.. High pressure ridging across the northern gulf and a developing low pressure system over the plains will keep mainly light to occasional moderate onshore winds through Monday. Shower and Thunderstorm activity is expected to increase on Monday through Tuesday as a front approaches the coastal waters.


7 Day Forecast for Marine Location Near New Roads, LA
   Hourly   EDIT   Help
location: 30.7, -91.45     debug


Area Discussion for - New Orleans/Baton Rouge, LA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus64 klix 191341
afdlix
area forecast discussion
national weather service new orleans la
841 am cdt Sun aug 19 2018

Sounding discussion
This morning's sounding continues to have a moist column and
similar high pwat values as the past couple of days. There is a
bit of a dry slot around 500mb. There's quite a few
temperature inversions throughout the column. There is a little
bit of CIN at the surface but that will erode as the day warms up.

Lapse rates at the surface mandatory pressure levels are just shy
of conditionally unstable. Convt is fairly low at 83f and mlcape
is 1911 j kg, so thunderstorms should have an easy time forming
and any storm that forms can be a very efficient rain producer.

Winds at the surface are still mostly westerly at 10-15 knots.

-bl

Prev discussion issued 432 am cdt Sun aug 19 2018
short term...

not a lot of change in the overall thinking. Training echoes will
continue to be the main concern as most if not all thunderstorms
will produce very heavy rainfall. Will continue the flood watch
for the current area as it covers locations that are at the mercy
of pumping stations. Most other locations will also have the
possibility of flooding in low lying and poor drainage areas but
those areas are able to drain more CFS while it is still raining
than those areas that depend on pumps. This scenario will be quite
redundant for the next few days. A cold front, or atleast a dew pt
boundary will move into the area and stall early Tuesday. This
will help become a better focus in lifting the abundant moisture
over the area. The sh TS that result from this look to train along
the frontal interface and ahead of it causing rainfall tallies to
become a potential issue during the day Tuesday. So there is a
possibility that the flood watch could beecome much larger in
areal extent depending on how this scenario trends. A reinforcing
surge of dry and slightly cooler air looks to move through by the
end of the week but that will have to be looked at further as we
get a little closer.

Aviation...

one change from previous mornings is the lifr ceiling noted at kmcb.

These ceilings could continue through about 14z before improving
gradually toVFR. Currently, convection over the coastal waters is
not as extensive as the previous several mornings, but would not be
surprised to see an increase in areal coverage over the next couple
of hours. With no significant change in airmass noted from the past
few days, again anticipate significant areal coverage of convection
today. ExpectVFR conditions to predominate through the forecast
period outside of convective activity. Will tend to use vcts with
only a 4 hour window of tempo in most terminals today, as
instantaneous areal coverage of convection may not exceed 50
percent. If convection is expected to directly impact a terminal,
ifr or lower conditions will be possible, with wind gusts to 30
knots or so. Most convection should run out of steam around 00z-01z,
with a restart of coastal convection Monday morning around 10z. 35
marine...

high pressure will remain centered east of the waters through about
Tuesday, before a frontal system moves into the area. Outside of
thunderstorm activity, a prevailing onshore flow of 5 to 10 knots is
expected across most of the coastal waters ahead of the front. The
only exception will be over the nearshore waters off the mississippi
coast where a seabreeze is expected to develop each day. This could
induce some stronger onshore winds of 10 to 15 knots for a few hours
each afternoon across the mississippi and chandeleur sounds. Once
the frontal system moves into the area, there could be a period of
offshore flow Wednesday into Thursday, followed by a light and
variable wind regime Friday before onshore flow re-establishes. 35
decision support...

dss code: blue.

Deployed: none.

Activation: none.

Activities: monitoring convective flash flooding concerns.

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 89 73 89 73 70 20 60 40
btr 90 75 90 76 70 20 60 40
asd 89 77 90 77 70 30 60 40
msy 89 77 90 78 70 40 60 30
gpt 88 77 89 78 70 40 60 30
pql 88 77 90 77 70 30 60 30

Lix watches warnings advisories
La... Flash flood watch through Monday evening for laz058-060>064.

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
BYGL1 - 8762482 - Bayou Gauche, LA 83 mi35 min SW 2.9 G 5.1

Wind History for Tesoro Marine Terminal, LA
(wind in knots)    EDIT      (on/off)   Help
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
7
AM
8
AM
Last
24hr
S4
S2
W4
G13
S6
G11
NW2
G11
SE3
SW3
S1
S9
S6
S4
SW2
G5
SW5
G9
S2
SE2
S3
S3
S4
S4
S2
SW4
SE2
--
S2
1 day
ago
E1
SE4
S4
W2
G5
NW1
SE3
SE4
S5
S5
SE6
G9
S6
E2
G5
SE4
SE3
SE1
--
S5
SE3
S1
NE1
W2
NE1
W6
G10
--
2 days
ago
N4
N2
SE4
NE8
NE6
G10
SW6
SE4
S4
S5
SE6
SE3
G6
SE4
G7
N1
SE2
SE5
SE3
S3
S2
SE1
SE2
E2
W6
G10
--
NW2

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Baton Rouge, Baton Rouge Metropolitan, Ryan Field, LA19 mi72 minSSE 510.00 miPartly Cloudy81°F77°F88%1015 hPa

Wind History from HZR (wind in knots)
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
-12
PM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
Last 24hrN4S3SE12
G16
SE4E3SE5CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSE3SE5SE3CalmSE6SE7S6S8
1 day agoE3CalmCalmS4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNW4CalmW3CalmNW3
2 days agoN4W3NW3CalmCalmSW3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmW3CalmNW4NW4CalmN5

Tide / Current Tables for Weeks Bay, Vermilion Bay, Louisiana
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Weeks Bay
Click for Map
Sun -- 12:59 AM CDT     Moonset
Sun -- 04:13 AM CDT     1.49 feet High Tide
Sun -- 06:37 AM CDT     Sunrise
Sun -- 10:58 AM CDT     1.31 feet Low Tide
Sun -- 11:38 AM CDT     1.32 feet High Tide
Sun -- 02:51 PM CDT     Moonrise
Sun -- 07:43 PM CDT     Sunset
Sun -- 09:16 PM CDT     0.04 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
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
0.81.11.31.41.51.51.51.41.41.31.31.31.31.31.210.80.60.40.20.100.10.2

Tide / Current Tables for Stouts Pass At Six Mile Lake, Louisiana
   EDIT      (on/off)   Help   One Week of Data
Stouts Pass At Six Mile Lake
Click for Map
Sun -- 12:57 AM CDT     Moonset
Sun -- 04:46 AM CDT     0.80 feet High Tide
Sun -- 06:35 AM CDT     Sunrise
Sun -- 02:48 PM CDT     Moonrise
Sun -- 07:41 PM CDT     Sunset
Sun -- 09:35 PM CDT     0.07 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
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
0.40.50.60.70.80.80.80.80.80.70.60.60.60.60.50.50.40.30.20.20.10.10.10.1

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
GOES Local Image of    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 (10,2,3,4)
      (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.