Wednesday, January17, 2018 L-36.com


Marine Weather and Tides
New Roads, 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 7:00AMSunset 5:29PM Wednesday January 17, 2018 12:21 PM CST (18:21 UTC) Moonrise 7:22AMMoonset 6:12PM Illumination 1% Phase: New Moon; Moon at 1 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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GMZ435 Vermilion Bay- 933 Am Cst Wed Jan 17 2018
.low water advisory in effect until midnight cst tonight...
.small craft exercise caution in effect until 3 pm cst this afternoon...
Today..North winds 15 to 20 knots. Bay waters rough.
Tonight..Northeast winds 10 to 15 knots. Bay waters choppy.
Thursday..Northeast winds 10 to 15 knots. Bay waters choppy.
Thursday night..Northeast winds around 5 knots. Bay waters smooth.
Friday..East winds around 5 knots. Bay waters smooth.
Friday night..Southeast winds 5 to 10 knots. Bay waters a light chop.
Saturday..Southeast winds 5 to 10 knots. Bay waters a light chop.
Saturday night..Southeast winds around 10 knots. Bay waters a light chop.
Sunday..Southeast winds 10 to 15 knots. Bay waters choppy. Slight chance of rain showers.
Sunday night..South winds 10 to 15 knots becoming southwest after midnight. Bay waters choppy. Rain showers likely and slight chance of Thunderstorms.
GMZ400 Synopsis For Lower Atchafalaya River La To High Island Tx Out 60 Nm Including Sabine And Calcasieu Lakes And Vermilion Bay 933 Am Cst Wed Jan 17 2018
Synopsis.. Strong northerly winds and very rough seas will continue through this morning. Winds will begin to decrease by Wednesday night, veering to the east on Thursday and southeast by Friday as high pressure moves east of the region. A light to moderate onshore flow will then persist into the weekend.

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


Area Discussion for - New Orleans/Baton Rouge, LA
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Fxus64 klix 171746
afdlix
area forecast discussion
national weather service new orleans la
1146 am cst Wed jan 17 2018

Update
An unusually high amount of snow cover over the gulf coast states
is impacting the hourly temperature rise today even with full
sun. Visible satellite imagery showed the southern portion of the
one inch or greater snow depth near i-10 in south central
louisiana to north of i-12 eastward from baton rouge to hammond,
to northern st. Tammany parish and pearl river county. Have
adjusted the hourly temperature values to match current trends,
and lowered the forecast highs several degrees across the area.

This means most locations will either not get above freezing at
all, or only reach 33 or 34 degrees for a 2 to 3 hour period, and
this is indicated in the latest hard freeze warning update. This
means the only decent ice melting will be on darker surfaces
exposed to the Sun like blacktop roads and some grassy surfaces
where accumulations of ice and snow are more shallow on the
southern end of the snowpack. Otherwise, a large number or roads
including sections of major highways interstates will likely
remain icy through Thursday morning. Updates have been sent. 22 td

Aviation
Vfr conditions will prevail at the TAF airports through Thursday,
however, icy runway conditions will need to melt before airport
operations can resume. North winds 10 to 15 knots (higher at knew)
with gusts near or slightly over 20 knots will continue through
the afternoon and early evening before lowering a bit overnight
tonight into Thursday morning.

Decision support
Dss code: blue.

Deployed: none.

Activation: none.

Activities: hard freeze threat again tonight Thursday morning
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.

Prev discussion issued 638 am cst Wed jan 17 2018
sounding discussion...

a much colder and drier airmass has advected into the area since
the 00z sounding. Precipitable water values have decreased down to
0.10 inches. This value is pretty much as dry as the airmass can
get in this region in mid-january. A strong inversion is also
noted around 960mb which is indicative of strong cold air
advection taking place in the low levels of the atmosphere.

Temperatures at the base of the inversion are extremely low at
around -12c, but temperatures warm to right around 0c at the top
of the inversion. In the mid-levels temperatures have changed
little as strong westerly flow remains in place. Overall, the
atmosphere is extremely stable due to the warm mid-level
temperatures. A clear and cold day can be expected. 32

Preliminary point temps pops
Mcb 32 16 44 24 0 0 0 0
btr 32 18 44 26 0 0 0 0
asd 34 17 44 24 0 0 0 0
msy 33 22 42 27 0 0 0 0
gpt 35 19 45 25 0 0 0 0
pql 35 17 45 21 0 0 0 0

Lix watches warnings advisories
La... Hard freeze warning until 11 am cst Thursday for laz034>037-039-
040-046>050-056>072.

Wind chill advisory until 1 pm cst this afternoon for laz034>037-
039-040-046>050-056>072.

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

Small craft advisory until midnight cst tonight for gmz575-577.

Small craft advisory until noon cst today for gmz530-532-534.

Ms... Hard freeze warning until 11 am cst Thursday for msz068>071-077-
080>082.

Wind chill advisory until 1 pm cst this afternoon for msz068>071-
077-080>082.

Gm... Small craft advisory until 6 pm cst this evening for gmz538-550-
552-555-557-570-572.

Small craft advisory until midnight cst tonight for gmz577.

Small craft advisory until noon cst today for gmz532-534.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BYGL1 - 8762482 - Bayou Gauche, LA 83 mi51 min NE 4.1 G 8 26°F 1038 hPa

Wind History for Tesoro Marine Terminal, LA
(wind in knots)    EDIT      (on/off)   Help
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N14
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G17
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G20
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G14
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NW5
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
New Roads False River Regional Airport, LA2 mi26 minNW 710.00 miFair28°F9°F46%1039.6 hPa
Baton Rouge, Baton Rouge Metropolitan, Ryan Field, LA19 mi28 minNNW 810.00 miFair27°F10°F49%1038.8 hPa

Wind History from HZR (wind in knots)
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Last 24hrN13
G16
N10N12
G17
N11N14N7N11N7N7N16
G20
N10N13N13
G21
N10N10N9
G16
N11
G15
N10N8N9N8
G15
N8N10N8
1 day agoCalmCalmCalmCalmS4CalmCalmCalmCalmCalmCalmSE5SE5NW3CalmCalmNW5N5N10N14N14
G18
N15
G23
N11
G21
N13
G20
2 days agoCalmCalmW3W8SW5W5NW4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSE4

Tide / Current Tables for Weeks Bay, Vermilion Bay, Louisiana
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Weeks Bay
Click for Map
Wed -- 12:21 AM CST     0.84 feet Low Tide
Wed -- 03:29 AM CST     0.93 feet High Tide
Wed -- 07:03 AM CST     Sunrise
Wed -- 07:21 AM CST     Moonrise
Wed -- 12:34 PM CST     -0.69 feet Low Tide
Wed -- 05:31 PM CST     Sunset
Wed -- 06:15 PM CST     Moonset
Wed -- 07:59 PM CST     0.97 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.80.80.90.90.90.90.70.50.3-0.1-0.3-0.6-0.7-0.7-0.5-0.30.10.40.70.910.90.90.8

Tide / Current Tables for Stouts Pass At Six Mile Lake, Louisiana
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Stouts Pass At Six Mile Lake
Click for Map
Wed -- 07:00 AM CST     Sunrise
Wed -- 07:19 AM CST     Moonrise
Wed -- 12:27 PM CST     -0.11 feet Low Tide
Wed -- 05:29 PM CST     Sunset
Wed -- 06:13 PM CST     Moonset
Wed -- 08:58 PM CST     0.90 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.80.70.70.70.70.60.60.50.40.30.1-0-0.1-0.1-00.10.20.40.60.80.90.90.90.8

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 (13,3,4,5)
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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.