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 21 min ago
FLOW RATE
558cfs
GAUGE HT
7.93ft
AIR TEMP
94°F
WIND
7mph W
FISH INDEX
63SCORE / 100
GOOD · 3 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 DAY
558cfs 32.4% vs avg
Optimal band: 473–639 cfs
PERIOD HIGH
567cfs
PERIOD LOW
537cfs
RUNNABLE
100%
last 1 day in band

Gauge Height

7.93ft
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°
76°
THU
93°
73°
FRI
93°
72°
SAT
93°
74°
SUN
93°
74°
MON
94°
74°
TIME
TUE
11
NOW
WED
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
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
TEMP
hourly forecast
83°
mild
83°
81°
80°
79°
79°
78°
77°
76°
78°
81°
84°
87°
89°
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°
91°
87°
83°
77°
75°
74°
73°
72°
72°
73°
73°
72°
72°
72°
74°
78°
82°
85°
87°
90°
92°
93°
93°
92°
91°
88°
84°
80°
78°
76°
75°
74°
74°
74°
74°
74°
74°
74°
76°
80°
83°
86°
88°
91°
92°
93°
93°
93°
92°
89°
85°
80°
78°
77°
76°
75°
74°
74°
74°
74°
74°
74°
76°
79°
82°
85°
88°
90°
92°
93°
93°
93°
WIND
mph · gust · dir
5mph SW
G 13 mph
5
G13
SW
5
G11
SW
5
G13
WSW
5
G12
W
5
G14
W
5
G11
W
4
G11
WNW
3
G10
NW
4
G13
NW
5
G7
WNW
4
G5
W
6
G7
WNW
2
G3
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
4
G6
SW
6
G7
SSW
6
G7
SW
8
SW
10
SW
11
SW
11
G16
WSW
10
G18
SW
8
G18
SW
8
G19
SW
7
G15
SW
7
G11
SSW
6
G10
SSW
5
G8
SSW
5
G6
SSW
6
S
4
G5
SSW
4
SSW
6
G7
S
5
G9
S
5
G8
S
6
G10
SSW
7
G10
SSW
7
G10
S
7
G10
S
9
G11
SSW
10
G12
SSW
11
SW
11
SW
11
SW
12
G13
SW
11
G17
SW
9
G17
SW
7
G17
SSW
6
G17
SSW
6
G15
S
6
G14
S
6
G16
S
6
G16
S
6
G13
S
5
G9
S
5
S
4
S
4
G7
SSE
5
G9
S
8
G10
SSW
8
G10
SSW
7
G10
S
6
G9
S
7
G9
SSW
8
SW
8
SW
9
SW
9
SW
11
G13
SW
10
G16
SW
8
G15
SW
7
G14
SSW
7
G16
SSW
7
G15
S
6
G12
S
6
G13
S
5
G12
S
5
G6
SSW
4
SSW
3
S
3
S
3
S
2
G3
SSE
2
G3
SSE
2
G3
SE
2
G3
SE
3
ESE
3
E
4
ENE
6
ENE
6
ENE
PRECIP
chance %
3%
3%
2%
2%
2%
1%
1%
1%
1%
1%
1%
1%
2%
5%
5%
6%
9%
10%
9%
8%
6%
5%
5%
4%
3%
2%
1%
1%
1%
1%
2%
1%
1%
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%
CLOUDS
cover %
0%
clear
0%
0%
0%
0%
0%
0%
2%
4%
4%
3%
7%
25%
23%
100%
90%
100%
100%
100%
100%
100%
91%
99%
100%
100%
100%
98%
100%
75%
64%
83%
40%
100%
75%
8%
12%
33%
55%
60%
76%
12%
13%
100%
100%
99%
5%
0%
0%
0%
0%
0%
0%
5%
0%
0%
0%
0%
0%
7%
7%
7%
6%
6%
7%
11%
15%
12%
64%
93%
100%
100%
7%
6%
6%
6%
0%
5%
0%
0%
0%
0%
15%
57%
0%
16%
0%
0%
0%
0%
0%
30%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
2%
3%
5%
5%
4%
2%
0%
PRESSURE
hPa · trend
1019
1019101810191017101610161018101410151016101810161018101710191016101810171019
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
63
Temperature
Too Hot
Wind
Light
Pressure
Stable
Moon Phase
Good
DAYLIGHT
SUNRISE
06:03 AM
SUNSET
08:08 PM
14H 5M OF DAYLIGHT0H 0M REMAINING
MOON PHASE
First Quarter
64% illuminated

Station Location

30.0966, -91.0059
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-06-23 22:51 UTC
Site #07380401·USGS

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