Marine Weather and Tides
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen
|Sunrise 6:25AM||Sunset 7:33PM||Wednesday August 21, 2019 2:10 AM CDT (07:10 UTC)||Moonrise 11:15PM||Moonset 11:40AM||Illumination 69%|
7 Day Forecast for Marine Location Near Pass Christian city, MSHourly EDIT Help
Area Discussion for - New Orleans/Baton Rouge, LA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus64 klix 210438|
area forecast discussion
national weather service new orleans la
1138 pm cdt Tue aug 20 2019
Updated for the 06z aviation discussion.
Vfr conditions prevail at all area airports and will persist
through the morning hours. However, periods of vicinity showers
and storms are possible at most area airports through the morning
and afternoon hours Wednesday that could cause lower ceilings and
visibilities. These storms could cause temporary wind shifts
greater than 30 degrees as well. Msw
Prev discussion issued 344 pm cdt Tue aug 20 2019
overall synoptic overview of the northern gulf coast states
continues to reflect an unsettled summertime pattern thanks to
weak low mid level heights and ample daytime heating - leading to
daily afternoon evening rain and storm chances. Only local
enhancement to note is a weak inverted trough in the low mid
levels, generally situated from the ms delta, NE to southern al.
While most convection across inland locations should come to an
end after sunset, some overnight showers or perhaps a few storms
may persist across southern ms, generally along and north of
i-10 12 and east of i-55 due to supportive dynamics convergence in
association with the westward progressing inverted trough.
Blended guidance did hint at this enhancement, with some
overnight pop's in this location, but have kept higher pop's
across offshore zones due to overnight marine instability in
By Wednesday, the aforementioned weak inverted trough tracks west
across central la, with a deep southerly moist return flow
developing across most of SE la and southern ms. This will help
drag a tongue of enhanced pw of around 2.3-2.5", combined with
increasing southerly 925-700mb layer winds ~10-20knots. Overall
impact will lead to an increase in storm coverage tomorrow, with a
few stronger thunderstorms possible producing wind gusts
25-35mph. This increase in low-level flow may help move storms a
bit more, with an average storm motion 180 8kts, but being this
weak means storms will largely propagate from outflow boundary
interactions and still produce localized flooding.
The southerly return flow will persist and deepen Thursday and
into Friday, with continued anomalously high pw each day leading
to widespread shower and storm chances. Weak storm motions
continuing to average around 180 7-8kts will allow for a
persistent day-to-day threat of localized flash flooding, as well
as gusty downdraft winds.
This upcoming weekend into early next week will feature much of
the same story. Interesting to note the nam GFS points at some
type of small (perhaps mesoscale?) low to mid-level spin up in the
nw gomex under weak heights aloft. H5 temps illustrate this to
have a warm core with it so this may need to be monitored. Only
local impacts should be continued day-to-day widespread
shower storm chances. Good news is with so much rain, temperatures
appear to remain near to slightly below normal, with no signs of
excessive heat in the long range at this time. Klg
overall weather pattern will continue to remain unsettled across
marine zones, thanks to a weak inverted trough across coastal se
la and southern ms areas. Expect spotty shower storm chances|
through the next several days, with better coverage in the
overnight hours. Main threats in any one storm will be gusty
downdraft winds in excess of 25-35 knots and lightning. This
pattern should continue through the weekend and early next week.
convective development will be the primary concern through 00z.
Have included vcts wording at all of the terminals to reflect this
risk, and have prevailing MVFR visibilities and showers at khum
where ongoing convection is most pronounced today. Given the high
soil moisture values in place at kmcb, kbtr, khdc, and kasd from
previous rains, another round of low ceilings and fog will be
possible tonight. Have prevailing lifr ceilings developing after
10z and lingering through 14z at these terminals, and have also
included some ifr visibility restrictions at kmcb around 12z
tomorrow. The low stratus deck should gradually lift into an MVFR
layer of 1500 to 2000 feet at these terminals after 15z tomorrow.
The remaining terminals should see MVFR ceilings of around 3000
feet after 15z tomorrow as cumulus development increases with
daytime heating. 32
dss code: green.
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
Preliminary point temps pops
Mcb 91 72 89 72 30 20 70 10
btr 91 75 89 74 40 20 80 10
asd 90 74 90 74 60 30 50 10
msy 90 76 90 77 70 30 60 10
gpt 87 74 87 75 70 40 40 20
pql 88 73 89 74 70 40 30 20
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|
|WYCM6 - 8747437 - Bay Waveland Yacht Club, MS||14 mi||59 min||SSW 4.1 G 7||80°F||85°F||1018.3 hPa|
|PNLM6 - 8741533 - Pascagoula NOAA Lab, MS||31 mi||59 min||84°F|
|PTBM6 - 8741003 - Petit Bois Island, MS||32 mi||65 min||S 5.1 G 6||81°F||1018.3 hPa|
|GDXM6 - Grand Bay Reserve, MS||38 mi||86 min||S 6||82°F||1020 hPa||76°F|
|SHBL1 - 8761305 - Shell Beach, LA||38 mi||59 min||S 2.9 G 4.1||79°F||87°F||1018 hPa|
|KATA1 - Katrina Cut, AL||48 mi||71 min||SSE 4.1||81°F||1018.6 hPa (-0.3)|
Wind History for Gulfport Outer Range, MS(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.
|Gulfport - Gulfport-Biloxi International Airport, MS||13 mi||18 min||N 0||10.00 mi||A Few Clouds||78°F||73°F||87%||1017.3 hPa|
|Keesler Air Force Base / Biloxi, MS||18 mi||75 min||S 6||10.00 mi||A Few Clouds||81°F||74°F||83%||1017.9 hPa|
Link to 5 minute data for KGPT
Wind History from GPT (wind in knots)
|1 day ago||Calm||Calm||W||Calm||Calm||NW||Calm||NW||NW||N||NW||SE|
|2 days ago||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||Calm||W||Calm||W|
EDIT Weekend mode (on/off) (on/off)  Help One Week of Data
EDIT (on/off)  Help One Week of Data
Weather Map and Satellite Images(on/off)  HelpWeather Map
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.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for New Orleans/Baton Rouge, LA (3,6,7,8)(on/off)  Help
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