Waterlands
Bayou Manchac
USGS · 07380101
BAYOU MANCHAC
USGS · 07380101LIVE

Bayou Manchac near Little Prairie, LA

ASCENSION PARISH, LA30.3405°N, -90.9173°W
AIR TEMP
90°F
WIND
3mph NW
FISH INDEX
69SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 DAY
cfs
No flow data available
Precipitation History

Precipitation · YTD

Wet

Wetter than normal

2026 to date

34.1in

+29% vs normal

34.14 in of precipitation so far this year, 29% above the 30-year normal of 26.46 in for this point in the season.

YTD Total

34.1in

This year so far

Normal to Date

26.5in

30-yr average

Typical Range

17.9–33.4in

10th–90th pct YTD

Departure

+29%

vs 30-yr normal

By Month

This year
Typical range
Normal
Jan: 3.75" · normal 4.74" (2.7–7.2)
Jan
Feb: 2.05" · normal 4.55" (1.8–6.9)
Feb
Mar: 4.26" · normal 4.54" (2.0–7.7)
Mar
Apr: 3.47" · normal 4.57" (1.0–7.6)
Apr
May: 12.69" · normal 4.22" (0.8–7.5)
May
Jun: 7.91" (so far)· normal 4.99" (2.3–8.7)
Jun
Jul: normal 5.75" (3.3–8.3)
Jul
Aug: normal 5.66" (2.1–13.2)
Aug
Sep: normal 4.16" (1.5–7.3)
Sep
Oct: normal 3.79" (0.3–8.2)
Oct
Nov: normal 3.52" (1.7–6.2)
Nov
Dec: normal 4.14" (2.4–6.7)
Dec
Baseline 19912020 · Source: Open-Meteo12:22 AM
SPONSORED
Weather Conditions
WEATHER CONDITIONS
TODAY
92°
78°
WED
85°
77°
THU
93°
74°
FRI
93°
72°
SAT
93°
74°
SUN
94°
73°
MON
96°
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
83°
mild
83°
81°
81°
80°
79°
78°
77°
79°
81°
82°
84°
85°
84°
83°
85°
83°
83°
81°
82°
82°
80°
79°
78°
78°
77°
77°
77°
77°
76°
76°
75°
77°
80°
82°
83°
85°
88°
90°
92°
93°
93°
92°
90°
85°
79°
76°
75°
74°
73°
72°
72°
72°
72°
72°
72°
74°
78°
82°
84°
87°
89°
91°
93°
93°
93°
92°
89°
84°
79°
77°
76°
75°
74°
74°
74°
74°
74°
74°
74°
76°
79°
83°
85°
88°
90°
91°
93°
93°
93°
92°
90°
86°
81°
79°
77°
76°
75°
75°
74°
74°
73°
73°
73°
75°
79°
82°
85°
87°
89°
91°
92°
93°
94°
93°
91°
WIND
mph · gust · dir
6mph WSW
G 12 mph
6
G12
WSW
2
G9
WSW
1
G12
S
3
G11
WSW
6
G13
W
5
G13
WNW
4
G16
NW
6
G16
NW
6
G11
NW
6
G9
NW
4
G5
WNW
4
G5
W
6
G8
NW
7
G17
NW
7
G16
WNW
7
G12
WNW
6
G7
S
1
G3
S
3
G6
S
2
G3
SSW
3
G5
S
4
G8
SSE
5
G11
SSE
5
G10
SSE
4
G11
S
5
G12
SW
5
G12
SW
5
G12
WSW
4
G11
WSW
3
G11
W
2
G10
W
4
G13
W
8
G16
W
7
G11
W
7
G9
W
7
G8
W
6
G7
WSW
6
G7
SW
6
G8
SSW
7
G8
SSW
8
SSW
9
SSW
8
G16
SW
9
G20
WSW
8
G20
WSW
8
G20
SW
7
G18
SW
7
G14
SSW
6
G11
SSW
6
G8
SSW
5
G10
SSW
5
G7
SSW
4
SSW
4
G5
SSW
5
G8
S
5
G9
S
6
G8
SSW
7
G11
SSW
9
G10
SSW
8
G11
SSW
8
G11
SSW
8
G12
SSW
8
G12
SSW
9
G11
SW
11
SW
10
G11
SW
11
G13
SW
11
G18
SW
9
G19
SW
8
G19
SW
7
G18
SSW
6
G16
SSW
6
G15
S
6
G16
S
6
G17
S
6
G14
S
5
G8
S
5
S
5
S
3
G7
S
4
G7
S
5
G11
S
7
G11
S
8
G10
SSW
9
G10
SSW
8
G9
SSW
6
G8
SSW
7
G8
SW
8
SW
9
SW
9
G10
SW
9
G13
SW
8
G15
SW
7
G16
SW
7
G16
SSW
6
G13
SSW
6
G11
SSW
6
G8
S
6
G8
S
6
SSW
5
SSW
5
SW
4
SW
2
G4
SW
1
G3
SW
2
G3
S
3
S
4
SSE
5
S
5
S
4
S
3
SSW
3
G4
SSW
3
G5
S
4
G8
S
PRECIP
chance %
6%
6%
6%
2%
1%
1%
1%
2%
4%
4%
1%
4%
8%
9%
10%
10%
10%
11%
9%
7%
5%
4%
3%
2%
2%
2%
2%
1%
1%
1%
1%
3%
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%
0%
0%
0%
0%
0%
0%
13%
13%
13%
13%
13%
13%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
1%
1%
1%
1%
1%
1%
12%
12%
12%
12%
12%
12%
1%
1%
1%
1%
1%
1%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
15%
15%
15%
15%
15%
CLOUDS
cover %
75%
mostly
75%
59%
76%
26%
2%
73%
43%
80%
38%
100%
77%
100%
100%
100%
100%
100%
100%
100%
100%
97%
100%
100%
96%
64%
100%
100%
87%
78%
85%
35%
89%
100%
4%
32%
42%
28%
20%
37%
17%
100%
98%
15%
10%
10%
5%
5%
0%
0%
0%
0%
6%
9%
6%
6%
10%
7%
7%
10%
22%
23%
19%
8%
0%
6%
8%
0%
0%
14%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
5%
0%
5%
33%
40%
11%
5%
5%
0%
0%
5%
5%
11%
0%
0%
0%
0%
0%
0%
0%
5%
6%
5%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
PRESSURE
hPa · trend
1019
10191018101910171016101610171014101510161018101610171018101910161018101710191015
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
69
Temperature
Too Hot
Wind
Calm
Pressure
Stable
Moon Phase
Good
DAYLIGHT
SUNRISE
06:02 AM
SUNSET
08:09 PM
14H 7M OF DAYLIGHT19H 47M REMAINING
MOON PHASE
First Quarter
64% illuminated

Station Location

30.3405, -90.9173
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-06-24 00:22 UTC
Site #07380101·USGS

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