Waterlands
Lower Atchafalaya River
USGS · 07381600
LOWER ATCHAFALAYA RIVER
USGS · 07381600LIVE

Lower Atchafalaya River at Morgan City, LA

ST. MARY PARISH, LA29.6928°N, -91.2120°W Updated 21 min ago
FLOW RATE
144,000cfs
GAUGE HT
3.82ft
WATER TEMP
29°F
AIR TEMP
82°F
WIND
3mph ENE
FISH INDEX
63SCORE / 100
GOOD · 3 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 DAY
144,000cfs
Optimal band: 123,250–166,750 cfs
PERIOD HIGH
173,000cfs
PERIOD LOW
124,000cfs
RUNNABLE
96%
last 1 day in band

Gauge Height

3.82ft

Water Temperature

29.2°F

Water Turbidity

Precipitation History

Precipitation · YTD

Wet

Wetter than normal

2026 to date

30.9in

+17% vs normal

30.87 in of precipitation so far this year, 17% above the 30-year normal of 26.41 in for this point in the season.

YTD Total

30.9in

This year so far

Normal to Date

26.4in

30-yr average

Typical Range

18.7–33.6in

10th–90th pct YTD

Departure

+17%

vs 30-yr normal

By Month

This year
Typical range
Normal
Jan: 3.85" · normal 4.50" (2.7–6.2)
Jan
Feb: 2.04" · normal 4.10" (1.6–6.8)
Feb
Mar: 3.35" · normal 4.16" (1.3–7.5)
Mar
Apr: 3.09" · normal 4.19" (0.7–7.1)
Apr
May: 10.13" · normal 3.79" (0.8–6.3)
May
Jun: 7.61" · normal 5.15" (2.4–8.7)
Jun
Jul: 0.79" (so far)· normal 6.47" (4.3–8.6)
Jul
Aug: normal 6.52" (3.3–11.8)
Aug
Sep: normal 5.27" (2.1–9.5)
Sep
Oct: normal 3.67" (0.2–7.3)
Oct
Nov: normal 3.60" (1.3–7.1)
Nov
Dec: normal 4.04" (2.3–6.5)
Dec
Baseline 1991–2020 · Source: Open-Meteo12:21 AM
Your History · Lower Atchafalaya River at Morgan City, LA

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Weather Conditions
WEATHER CONDITIONS
TODAY
85°
75°
FRI
89°
74°
SAT
96°
75°
SUN
91°
75°
MON
91°
74°
TUE
92°
75°
WED
95°
76°
TIME
FRI
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
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
7
pm
8
pm
9
pm
10
pm
11
pm
MON
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
TUE
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
77°
mild
77°
76°
76°
75°
75°
75°
74°
76°
79°
82°
84°
85°
87°
88°
89°
89°
88°
85°
84°
83°
82°
80°
79°
78°
78°
77°
76°
76°
76°
76°
75°
77°
81°
83°
85°
88°
90°
93°
96°
96°
95°
90°
87°
84°
80°
78°
78°
77°
77°
77°
76°
76°
76°
76°
75°
77°
81°
85°
86°
89°
91°
91°
89°
89°
90°
91°
87°
84°
80°
78°
78°
77°
77°
77°
75°
75°
74°
75°
75°
77°
80°
84°
86°
87°
88°
88°
91°
91°
89°
87°
87°
84°
80°
78°
77°
76°
76°
75°
75°
75°
75°
75°
75°
77°
81°
85°
88°
88°
88°
89°
90°
91°
92°
90°
87°
WIND
mph · gust · dir
2mph ESE
G 4 mph
2
G4
ESE
4
ENE
4
ENE
3
E
2
G3
ESE
3
E
4
ENE
3
G5
ENE
3
G4
E
3
G4
E
4
G5
NE
4
G6
NE
3
G4
NNE
4
NE
4
NE
4
E
11
G14
SSW
10
G14
SSW
8
G11
SW
6
G9
SW
6
G9
SSW
4
G6
W
3
G7
W
2
G4
S
3
G4
WSW
3
G5
SW
0
G2
SE
1
G2
NE
3
E
3
E
1
G2
NNE
2
G3
NNE
5
G11
NNW
4
G7
NNW
4
G5
NW
3
G4
WSW
4
G5
SSW
5
SE
7
E
7
E
5
G7
S
10
SW
10
SW
9
G13
SSW
7
G15
SSW
6
G13
SSW
5
G9
WSW
4
G8
W
3
G6
W
3
WSW
3
SW
2
G3
WSW
2
W
1
SW
1
SSW
1
S
2
G3
S
3
G4
SSW
3
WSW
3
WSW
2
G4
WSW
4
G5
SSW
8
G9
SSW
8
S
6
G11
S
9
SSW
11
G13
SW
8
G12
SW
6
G11
SW
5
G11
SW
5
SW
4
SW
3
G4
WSW
3
SW
3
SSW
3
SSW
2
G4
S
2
G4
S
2
G5
S
3
G8
S
2
G10
SSW
3
G9
SW
5
G7
SW
6
G7
SSW
6
G7
SSW
9
SW
8
WSW
10
SW
11
SW
10
SW
9
G11
SSW
8
G10
SSW
5
G13
SSW
5
G13
S
5
G12
S
4
G14
S
3
G4
S
3
G4
SSW
3
G4
SW
3
SSW
3
S
3
G4
SSE
3
G4
SSE
3
SSE
3
SSE
4
G5
SSW
5
G7
SW
7
SW
8
SW
9
WSW
10
WSW
10
SW
10
SW
9
SW
9
G11
SSW
PRECIP
chance %
1%
1%
1%
2%
1%
1%
1%
1%
1%
2%
3%
3%
6%
10%
13%
17%
15%
14%
11%
11%
10%
7%
7%
3%
1%
1%
1%
1%
1%
1%
1%
1%
1%
14%
14%
14%
14%
14%
14%
30%
30%
30%
30%
30%
30%
2%
2%
2%
2%
2%
2%
5%
5%
5%
5%
5%
5%
32%
32%
32%
32%
32%
32%
69%
69%
69%
69%
69%
69%
6%
6%
6%
6%
6%
6%
16%
16%
16%
16%
16%
16%
33%
33%
33%
33%
33%
33%
33%
33%
33%
33%
33%
33%
4%
4%
4%
4%
4%
4%
2%
2%
2%
2%
2%
2%
16%
16%
16%
16%
16%
16%
23%
23%
23%
23%
23%
CLOUDS
cover %
0%
clear
0%
1%
3%
4%
4%
6%
8%
11%
7%
7%
1%
3%
0%
0%
0%
0%
24%
2%
3%
15%
100%
100%
100%
100%
100%
100%
82%
100%
96%
100%
100%
75%
92%
100%
100%
75%
53%
25%
0%
0%
45%
39%
23%
0%
10%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
6%
6%
28%
31%
53%
71%
17%
18%
82%
100%
68%
6%
0%
0%
0%
11%
11%
18%
79%
14%
15%
17%
13%
6%
0%
31%
9%
5%
35%
30%
54%
60%
5%
0%
0%
0%
0%
0%
0%
0%
0%
0%
5%
10%
0%
0%
11%
10%
36%
57%
69%
71%
55%
29%
9%
4%
5%
PRESSURE
hPa · trend
1018
10181017101910171017101710171014101510151016101410151015101610151016101710171016
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
63
Temperature
Too Hot
Wind
Calm
Pressure
Stable
Moon Phase
Average
DAYLIGHT
SUNRISE
06:08 AM
SUNSET
08:09 PM
14H 1M OF DAYLIGHT19H 48M REMAINING
MOON PHASE
Waning Gibbous
90% illuminated

Station Location

29.6928, -91.2120
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-03 00:21 UTC
Site #07381600·USGS

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