Waterlands
Bayou Lafourche Sw of Donaldsonville, La
USGS · 07380401
BAYOU LAFOURCHE SW OF DONALDSONVILLE, LA
USGS · 07380401LIVE

Bayou Lafourche SW of Donaldsonville, LA

DONALDSONVILLE, LA30.0966°N, -91.0059°W Updated 25 min ago
FLOW RATE
560cfs
AIR TEMP
92°F
WIND
4mph W
FISH INDEX
69SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 YEAR
560cfs 0.7% vs avg
Optimal band: 295–399 cfs
PERIOD HIGH
565cfs
PERIOD LOW
209cfs
RUNNABLE
54%
last 1 year in band
Precipitation History

Precipitation · YTD

Normal

Near-normal year

2026 to date

28.8in

≈ normal

28.8 in of precipitation so far this year — about average for this point in the season (normal 25.55 in).

YTD Total

28.8in

This year so far

Normal to Date

25.6in

30-yr average

Typical Range

17.8–32.0in

10th–90th pct YTD

Departure

+13%

vs 30-yr normal

By Month

This year
Typical range
Normal
Jan: 2.10" · normal 4.70" (2.8–6.7)
Jan
Feb: 1.62" · normal 4.36" (1.9–7.3)
Feb
Mar: 4.61" · normal 4.44" (2.0–6.8)
Mar
Apr: 2.73" · normal 4.46" (1.0–7.5)
Apr
May: 10.25" · normal 4.03" (0.7–7.1)
May
Jun: 7.49" (so far)· normal 5.10" (2.1–9.5)
Jun
Jul: normal 6.20" (3.6–9.3)
Jul
Aug: normal 6.24" (2.6–12.6)
Aug
Sep: normal 4.67" (1.8–8.1)
Sep
Oct: normal 3.83" (0.3–7.2)
Oct
Nov: normal 3.56" (1.4–6.3)
Nov
Dec: normal 3.96" (2.3–6.5)
Dec
Baseline 1991–2020 · Source: Open-Meteo10:52 PM
SPONSORED
Weather Conditions
WEATHER CONDITIONS
TODAY
94°
77°
WED
89°
77°
THU
93°
74°
FRI
93°
73°
SAT
93°
74°
SUN
94°
74°
MON
94°
74°
TIME
WED
12
NOW
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
THU
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
FRI
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
SAT
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
SUN
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
TEMP
hourly forecast
82°
mild
82°
81°
80°
79°
78°
77°
77°
78°
81°
84°
85°
87°
89°
86°
85°
80°
80°
83°
86°
85°
82°
80°
79°
78°
78°
78°
78°
77°
76°
76°
77°
78°
81°
83°
86°
88°
90°
91°
93°
93°
93°
92°
88°
84°
78°
76°
75°
74°
74°
73°
73°
73°
73°
73°
73°
75°
79°
82°
86°
88°
90°
92°
93°
93°
92°
91°
87°
83°
79°
77°
76°
76°
75°
75°
75°
74°
74°
74°
74°
76°
80°
83°
86°
89°
91°
92°
93°
93°
92°
91°
88°
85°
80°
79°
77°
76°
76°
75°
74°
74°
74°
74°
74°
76°
79°
83°
86°
88°
90°
92°
93°
94°
94°
91°
88°
WIND
mph · gust · dir
7mph WSW
G 15 mph
7
G15
WSW
5
G14
W
5
G15
WSW
5
G12
W
5
G12
W
4
G9
WSW
5
G12
WNW
6
G15
NW
8
G12
WNW
6
G8
NW
3
G4
WNW
3
G4
WNW
5
N
14
G18
N
10
G15
NNW
9
G11
SSE
7
G8
SSE
2
SE
2
G4
S
4
SSW
6
G9
S
5
G10
S
5
G11
S
7
G13
SSW
4
G11
SSW
5
G12
SW
5
G11
SW
6
G11
SW
4
G11
WSW
4
G11
W
4
G9
W
5
G11
W
9
G13
W
8
G11
W
7
G9
W
6
G7
W
5
G6
SW
6
G7
SW
7
SW
8
SW
8
SW
8
G10
SW
10
G16
SW
10
G18
SW
8
G18
SW
7
G19
SW
7
G15
SSW
7
G11
SSW
6
G10
SSW
5
G8
SSW
5
G6
S
5
G6
S
4
G5
S
4
S
5
G7
S
5
G9
S
6
G8
S
8
G10
S
8
G10
S
8
G10
S
8
G10
SSW
9
G11
SSW
10
G12
SSW
11
SW
12
SW
12
SW
12
G13
SW
10
G17
SW
9
G17
SW
7
G17
SSW
7
G17
SSW
7
G15
S
7
G14
S
7
G16
S
6
G16
S
6
G13
S
5
G9
S
5
S
5
S
3
G7
S
4
G9
S
6
G10
S
8
G10
SSW
8
G10
SSW
8
G9
SSW
8
G9
SSW
9
SW
9
SW
9
SW
10
SW
11
G13
SW
9
G16
SW
7
G15
SW
7
G14
SW
6
G16
SSW
6
G15
SSW
6
G12
S
6
G13
S
6
G12
S
6
S
5
SSW
5
SSW
4
SSW
3
SW
2
G3
SW
1
G3
S
2
G3
SSE
3
SE
4
ESE
4
ESE
5
E
5
E
5
E
2
G7
SE
5
G11
SSW
PRECIP
chance %
1%
1%
1%
1%
1%
1%
1%
1%
2%
3%
1%
2%
7%
9%
9%
10%
12%
12%
10%
7%
6%
5%
3%
3%
1%
1%
1%
1%
1%
2%
2%
2%
1%
1%
1%
1%
1%
1%
1%
7%
7%
7%
7%
7%
7%
2%
2%
2%
2%
2%
2%
0%
0%
0%
0%
0%
0%
1%
1%
1%
1%
1%
1%
9%
9%
9%
9%
9%
9%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
1%
1%
1%
1%
1%
11%
11%
11%
11%
11%
11%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
1%
1%
1%
1%
1%
17%
17%
17%
17%
17%
CLOUDS
cover %
84%
mostly
84%
34%
7%
2%
2%
2%
3%
9%
45%
18%
96%
89%
100%
90%
100%
100%
100%
100%
100%
91%
99%
100%
100%
100%
98%
100%
75%
64%
83%
40%
100%
75%
8%
12%
33%
37%
16%
97%
11%
17%
15%
11%
10%
10%
0%
5%
0%
0%
0%
0%
0%
6%
6%
10%
11%
8%
12%
7%
28%
10%
6%
0%
0%
0%
5%
8%
0%
0%
0%
0%
0%
0%
0%
0%
5%
0%
0%
5%
0%
0%
12%
49%
40%
0%
0%
0%
0%
0%
18%
17%
0%
0%
0%
0%
0%
0%
0%
0%
0%
6%
5%
0%
5%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
6%
13%
PRESSURE
hPa · trend
1019
10191018101810171016101610171014101510161018101610171018101810171018101710191015
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
69
Temperature
Too Hot
Wind
Calm
Pressure
Stable
Moon Phase
Good
DAYLIGHT
SUNRISE
06:03 AM
SUNSET
08:08 PM
14H 5M OF DAYLIGHT19H 43M REMAINING
MOON PHASE
First Quarter
64% illuminated

Station Location

30.0966, -91.0059
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-06-24 00:25 UTC
Site #07380401·USGS

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