NDBC has recently revised the NDBC Handbook of Automated Data Quality Control Checks and Procedures. The new document can be found on our Publications page.

Station 42354 - Chandeleur Island SE, LA (279) Image indicating link to RSS feed of recent meteorological observations for station 42354


Conditions at 42354 as of
(9:56 pm CDT on 05/19/2025)
0256 GMT on 05/20/2025:
     

Click on the graph icon in the table below to see a time series plot of the last five days of that observation.

5-day plot - Wave Height Wave Height (WVHT): 2.6 ft
5-day plot - Dominant Wave Period Dominant Wave Period (DPD): 6 sec
5-day plot - Average Wave Period Average Period (APD): 3.8 sec
5-day plot - Mean Wave Direction Mean Wave Direction (MWD): S ( 178 deg true )
5-day plot - Water Temperature Water Temperature (WTMP): 83.8 °F
Previous observations
TIME
(CDT)
5-day plot - Wind Direction
WDIR
 
5-day plot - Wind Speed
WSPD
kts
5-day plot - Wind Gust
GST
kts
5-day plot - Wave Height
WVHT
ft
5-day plot - Dominant Wave Period
DPD
sec
5-day plot - Average Wave Period
APD
sec
5-day plot - Mean Wave Direction
MWD
 
5-day plot - Atmospheric Pressure
PRES
in
5-day plot - Pressure Tendency
PTDY
in
5-day plot - Air Temperature
ATMP
°F
5-day plot - Water Temperature
WTMP
°F
5-day plot - Dew Point
DEWP
°F
5-day plot - Salinity
SAL
psu
5-day plot - Visibility
VIS
nmi
5-day plot - Tide (above MLLW)
TIDE
ft
2025-05-19 09:26 pm--- 2.6 63.8 S--- 84.0----
2025-05-19 08:56 pm--- 2.6 53.9 S--- 84.2----
2025-05-19 08:26 pm--- 2.6 53.8 S--- 84.2----
2025-05-19 07:56 pm--- 2.6 53.7 S--- 84.4----
2025-05-19 07:26 pm--- 2.6 53.7 S--- 84.4----
2025-05-19 06:56 pm--- 2.3 43.6 S--- 84.6----
2025-05-19 05:56 pm--- 2.3 53.6 S--- 84.9----
2025-05-19 05:26 pm--- 2.6 53.5 S--- 85.1----
2025-05-19 04:56 pm--- 2.6 53.5 S--- 84.6----
2025-05-19 04:26 pm--- 2.6 43.4 S--- 84.4----
2025-05-19 03:56 pm--- 2.3 43.3 S--- 84.4----
2025-05-19 03:26 pm--- 2.3 43.3SSE--- 84.4----
2025-05-19 02:56 pm--- 2.3 43.3 S--- 84.2----
2025-05-19 02:26 pm--- 2.3 43.2SSE--- 84.0----
2025-05-19 01:56 pm--- 2.0 43.2SSE--- 83.8----
2025-05-19 01:26 pm--- 2.3 33.1SSE--- 83.7----
2025-05-19 12:56 pm--- 2.0 33.2SSE--- 83.5----
2025-05-19 12:26 pm--- 2.0 33.1SSE--- 83.3----
2025-05-19 11:56 am--- 2.0 43.1SSE--- 82.9----
2025-05-19 11:26 am--- 1.6 33.1SSE--- 82.9----
2025-05-19 10:56 am--- 1.6 43.2 S--- 82.8----
2025-05-19 10:26 am--- 1.6 43.2 S--- 82.6----
2025-05-19 09:56 am--- 1.6 43.3SSE--- 82.4----
2025-05-19 09:26 am--- 1.6 43.4 S--- 82.2----
2025-05-19 08:56 am--- 1.6 53.4 S--- 82.2----
2025-05-19 08:26 am--- 1.6 43.4SSE--- 82.2----
2025-05-19 07:56 am--- 1.6 43.4 S--- 82.2----
2025-05-19 07:26 am--- 1.6 43.3SSE--- 82.2----
2025-05-19 06:56 am--- 1.6 43.2SSE--- 82.2----
2025-05-19 06:26 am--- 1.6 43.2 S--- 82.2----
2025-05-19 05:56 am--- 1.6 43.0 S--- 82.2----
2025-05-19 05:26 am--- 2.0 33.0 S--- 82.2----
2025-05-19 04:56 am--- 2.0 33.0 S--- 82.2----
2025-05-19 04:26 am--- 2.0 33.0SSE--- 82.2----
2025-05-19 03:56 am--- 2.0 33.0SSE--- 82.0----
2025-05-19 03:26 am--- 2.0 33.0SSE--- 82.0----
2025-05-19 02:56 am--- 2.0 32.9SSE--- 82.0----
2025-05-19 02:26 am--- 2.0 33.0SSE--- 82.0----
2025-05-19 01:56 am--- 2.0 33.0SSE--- 82.2----
2025-05-19 01:26 am--- 2.0 33.1SSE--- 82.2----
2025-05-19 12:56 am--- 1.6 33.1SSE--- 82.4----
2025-05-19 12:26 am--- 1.6 33.2SSE--- 82.4----
2025-05-18 11:56 pm--- 1.6 33.2SSE--- 82.6----
2025-05-18 11:26 pm--- 1.6 33.2 S--- 82.8----
2025-05-18 10:56 pm--- 1.6 63.5 S--- 82.8----
2025-05-18 10:26 pm--- 1.3 63.4 S--- 82.9----
2025-05-18 09:56 pm--- 1.3 63.5 S--- 82.8----

Detailed Wave Summary
for 42354 as of
(9:56 pm CDT on 05/19/2025)
0256 GMT on 05/20/2025:

These wave data are displayed in rounded times.

     

Click on the graph icon in the table below to see a time series plot of the last five days of that observation.

5-day plot - Significant Wave Height Significant Wave Height (WVHT): 2.6 ft
5-day plot - Swell Height Swell Height (SwH): 0.0 ft
5-day plot - Swell Period Swell Period (SwP): 22.2 sec
5-day plot - Swell Direction Swell Direction (SwD):SSE
5-day plot - Wind Wave Height Wind Wave Height (WWH): 2.6 ft
5-day plot - Wind Wave Period Wind Wave Period (WWP): 5.9 sec
5-day plot - Wind Wave Direction Wind Wave Direction (WWD): S
5-day plot - Wave Steepness Wave Steepness (STEEPNESS): STEEP
5-day plot - Average Wave Period Average Wave Period (APD): 3.8 sec
Previous observations
TIME
(CDT)
5-day plot - Wave Height
WVHT
ft
5-day plot - Swell Height
SwH
ft
5-day plot - Swell Period
SwP
sec
5-day plot - Swell Direction
SwD
 
5-day plot - Wind Wave Height
WWH
ft
5-day plot - Wind Wave Period
WWP
sec
5-day plot - Wind Wave Direction
WWD
 
5-day plot - Wave Steepness
STEEPNESS
 
5-day plot - Average Wave Period
APD
sec
2025-05-19 09:26 pm 2.6 0.0 20.0 SE 2.6 5.6 S STEEP 3.8
2025-05-19 08:56 pm 2.6 0.0 25.0 W 2.6 5.0 SVERY_STEEP 3.9
2025-05-19 08:26 pm 2.6 0.0 25.0SSE 2.6 5.3 S N/A 3.8
2025-05-19 07:56 pm 2.6 0.0 22.2SSE 2.6 4.5 S N/A 3.7
2025-05-19 07:26 pm 2.6 0.0 22.2 S 2.6 4.8 S N/A 3.7
2025-05-19 06:56 pm 2.3 0.0 25.0SSE 2.3 4.2 S N/A 3.6
2025-05-19 06:26 pm 2.6 0.0 25.0 SE 2.6 4.2 SSE N/A 3.5
2025-05-19 05:56 pm 2.3 0.0 25.0 SE 2.3 4.5 S N/A 3.6
2025-05-19 05:26 pm 2.6 0.0 18.2SSE 2.3 4.8 S N/A 3.5
2025-05-19 04:56 pm 2.6 0.0 22.2SSW 2.6 4.5 S N/A 3.5
2025-05-19 04:26 pm 2.6 0.0 22.2SSE 2.6 4.0 S N/A 3.4
2025-05-19 03:56 pm 2.3 0.0 25.0 SE 2.3 3.9 S N/A 3.3
2025-05-19 03:26 pm 2.3 0.0 25.0SSE 2.3 3.9 SSE N/A 3.3
2025-05-19 02:56 pm 2.3 0.0 15.4 S 2.3 4.0 S N/A 3.3
2025-05-19 02:26 pm 2.3 0.0 22.2 S 2.3 3.6 SSE N/A 3.2
2025-05-19 01:56 pm 2.0 0.0 25.0SSE 2.0 3.7 SSE N/A 3.2
2025-05-19 01:26 pm 2.3 0.0 25.0SSE 2.3 3.5 SSE N/A 3.1
2025-05-19 12:56 pm 2.0 0.0 20.0 SE 2.0 3.5 SSE N/A 3.2
2025-05-19 12:26 pm 2.0 0.0 25.0 SE 2.0 3.5 SSE N/A 3.1
2025-05-19 11:56 am 2.0 0.0 20.0SSE 2.0 3.7 SSE N/A 3.1
2025-05-19 11:26 am 1.6 0.0 20.0 SE 1.6 3.2 SSE N/A 3.1
2025-05-19 10:56 am 1.6 0.0 22.2SSE 1.6 4.2 S N/A 3.2
2025-05-19 10:26 am 1.6 0.0 25.0 S 1.6 3.9 S N/A 3.2
2025-05-19 09:56 am 1.6 0.0 25.0SSE 1.6 3.6 SSE N/A 3.3
2025-05-19 09:26 am 1.6 0.0 25.0SSE 1.6 3.9 S N/A 3.4
2025-05-19 08:56 am 1.6 0.0 18.2 S 1.6 4.5 S N/A 3.4
2025-05-19 08:26 am 1.6 0.0 22.2 W 1.6 3.7 SSE N/A 3.4
2025-05-19 07:56 am 1.6 0.0 25.0SSE 1.6 3.7 S N/A 3.4
2025-05-19 07:26 am 1.6 0.0 22.2 NW 1.6 3.6 SSE N/A 3.3
2025-05-19 06:56 am 1.6 0.0 10.5SSE 1.6 3.6 SSE N/A 3.2
2025-05-19 06:26 am 1.6 0.0 22.2SSE 1.6 3.9 S N/A 3.2
2025-05-19 05:56 am 1.6 0.0 22.2 SE 1.6 3.6 S N/A 3.0
2025-05-19 05:26 am 2.0 0.0 25.0SSE 2.0 3.5 S N/A 3.0
2025-05-19 04:56 am 2.0 0.0 22.2 S 2.0 3.3 S N/A 3.0
2025-05-19 04:26 am 2.0 0.0 25.0 N 2.0 3.1 SSE N/A 3.0
2025-05-19 03:56 am 2.0 0.0 25.0 SE 2.0 3.2 SSE N/A 3.0
2025-05-19 03:26 am 2.0 0.0 22.2 S 2.0 3.1 SSE N/A 3.0
2025-05-19 02:56 am 2.0 0.0 25.0 S 2.0 2.9 SSE N/A 2.9
2025-05-19 02:26 am 2.0 0.0 25.0SSE 2.0 3.2 SSE N/A 3.0
2025-05-19 01:56 am 2.0 0.0 22.2SSE 2.0 3.0 SSE N/A 3.0
2025-05-19 01:26 am 2.0 0.0 14.3 S 2.0 3.1 SSE N/A 3.1
2025-05-19 12:56 am 1.6 0.0 15.4 S 1.6 3.1 SSE N/A 3.1
2025-05-19 12:26 am 1.6 0.0 25.0ESE 1.6 3.1 SSE N/A 3.2
2025-05-18 11:56 pm 1.6 0.0 25.0 S 1.6 3.1 SSE N/A 3.2
2025-05-18 11:26 pm 1.6 0.0 10.5SSE 1.6 3.1 S N/A 3.2
2025-05-18 10:56 pm 1.6 0.0 25.0SSW 1.6 5.9 S N/A 3.5
2025-05-18 10:26 pm 1.3 0.0 25.0 SW 1.3 5.6 S N/A 3.4
2025-05-18 09:56 pm 1.3 0.0 22.2 NE 1.3 5.9 S N/A 3.5

Plot of wave energy versus frequency (and period)