Ohio River at McAlpine Lower

Last updated: Jun 22, 2025, 6:13 PM UTC

Heat Advisory

Warning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.

US Army Corps of Engineers
Observations courtesy of U.S. Geological Survey

Scale to Flood Categories

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Traces and Thresholds Click to turn on/off display

Observed (OBS) 06/22/2025 1:00 PM EDT

Official Forecast (FCST) 06/22/2025 10:11 AM EDT

Record: 85.4 ft

Low Threshold: 9 ft

CATEGORY STAGE

Major Flooding 73 ft

Moderate Flooding 65 ft

Minor Flooding 55 ft

Action 53 ft

Reliability of the Forecast:

NOTE: Forecasts are issued routinely year-round.

River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.
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	CATEGORY	STAGE
	Major Flooding	73 ft
	Moderate Flooding	65 ft
	Minor Flooding	55 ft
	Action	53 ft

Flood Impacts 🅘

88.5 - The flood will reach the top of the floodwall. A large part of downtown Louisville floods. Parts of I-64 and I-65 flood. Homes along 31W (Dixie Highway) are destroyed. New Albany and Clarksville will suffer major damage.
76 - US 31W (Dixie Highway) closed at floodgate.
74 - Houk Lane is closed at floodgate.

Gauge Info

Coordinates	38.2803, -85.7992
RFC	OHRFC
State	KY
WFO	LMK
County	Jefferson
Data Provider(s)
US Army Corps of Engineers	USACE - US Army Corps of Engineers
USGS	03294500

Gauge Location

Recent Crests

1.	67.98 ft	on 04-09-2025	(P)
2.	59.59 ft	on 02-20-2025	(P)
3.	59.81 ft	on 03-06-2021	(P)
4.	56.69 ft	on 02-16-2020	(P)
5.	57.00 ft	on 02-27-2019	(P)

Historic Crests

1.	85.44 ft	on 01-27-1937
2.	74.40 ft	on 02-16-1884
3.	74.40 ft	on 03-07-1945
4.	73.46 ft	on 03-13-1964
5.	72.70 ft	on 04-02-1913

Vertical Datum Table

type	NGVD29
major Flooding	446.18 ft
moderate Flooding	438.18 ft
minor Flooding	428.18 ft
action	426.18 ft
Latest Value	404.72 ft
Gauge Zero	373.18 ft

Gauge Photos

Photo 1 of 21

Repair Station Area

Probability Information

Photo 1 of 3

Weekly Chance of Exceeding Levels
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Chance of Exceeding Levels During Entire Period
- About this graph
Short Range Forecast Uncertainty
About this graph | Product Description Document

Unique Local Info

Potential River Levels - Used to

Potential River Levels Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 Day (HEFS)	10 Day (NAEFS)	River Forecast VS. River Potential

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 hours.

Click individual graphics to enlarge.

USGS Average Streamflow
How low could the river get?

Collaborative Agencies

The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.

WFO Information

Weather Forecast Office

Louisville

6201 Theiler Lane

Louisville, KY 40229

(502) 969-8842

Ask Questions/Webmaster

Official Homepage

1.	67.98 ft	on 04-09-2025	(P)
2.	59.59 ft	on 02-20-2025	(P)
3.	59.81 ft	on 03-06-2021	(P)
4.	56.69 ft	on 02-16-2020	(P)
5.	57.00 ft	on 02-27-2019	(P)
6.	59.74 ft	on 02-14-2019	(P)
7.	67.09 ft	on 02-26-2018
8.	61.29 ft	on 03-16-2015
9.	62.88 ft	on 04-27-2011
10.	57.83 ft	on 03-12-2011
11.	57.56 ft	on 03-21-2008
12.	59.09 ft	on 01-12-2005
13.	55.07 ft	on 01-08-2004
14.	54.69 ft	on 03-24-2002
15.	70.47 ft	on 03-07-1997
16.	55.30 ft	on 05-12-1996
17.	59.36 ft	on 01-26-1996
18.	55.94 ft	on 05-22-1995
19.	55.92 ft	on 03-14-1994
20.	56.30 ft	on 02-01-1994
21.	60.30 ft	on 01-04-1991
22.	56.70 ft	on 12-24-1990
23.	58.37 ft	on 02-19-1989
24.	56.97 ft	on 05-07-1983
25.	63.60 ft	on 12-14-1978
26.	58.66 ft	on 03-17-1978
27.	56.13 ft	on 03-18-1975
28.	57.73 ft	on 01-16-1974
29.	58.53 ft	on 12-14-1972
30.	59.13 ft	on 04-19-1972
31.	55.72 ft	on 04-06-1970
32.	59.86 ft	on 05-31-1968
33.	63.30 ft	on 03-12-1967
34.	73.46 ft	on 03-13-1964
35.	62.71 ft	on 03-22-1963
36.	65.20 ft	on 03-05-1962
37.	62.00 ft	on 05-10-1961
38.	57.44 ft	on 01-26-1959
39.	60.13 ft	on 05-12-1958
40.	55.50 ft	on 04-12-1957
41.	57.22 ft	on 03-19-1956
42.	63.82 ft	on 03-10-1955
43.	60.00 ft	on 02-03-1952
44.	58.00 ft	on 12-10-1950
45.	63.40 ft	on 02-06-1950
46.	56.40 ft	on 01-29-1949
47.	68.00 ft	on 04-18-1948
48.	74.40 ft	on 03-07-1945
49.	65.10 ft	on 03-23-1943
50.	61.90 ft	on 04-25-1940
51.	61.96 ft	on 02-09-1939
52.	85.44 ft	on 01-27-1937
53.	63.70 ft	on 03-28-1936
54.	57.00 ft	on 03-18-1935
55.	66.10 ft	on 03-23-1933
56.	56.80 ft	on 02-05-1932
57.	55.10 ft	on 03-06-1929
58.	62.80 ft	on 01-27-1927
59.	60.60 ft	on 01-07-1924
60.	59.90 ft	on 12-28-1921
61.	59.20 ft	on 03-23-1920
62.	55.00 ft	on 01-07-1919
63.	58.20 ft	on 03-19-1917
64.	58.90 ft	on 01-15-1916
65.	57.50 ft	on 02-08-1915
66.	72.70 ft	on 04-02-1913
67.	56.40 ft	on 03-28-1912
68.	56.10 ft	on 01-18-1910
69.	60.60 ft	on 02-27-1909
70.	58.90 ft	on 04-06-1908
71.	69.10 ft	on 01-22-1907
72.	56.40 ft	on 03-09-1903
73.	61.00 ft	on 04-28-1901
74.	60.40 ft	on 03-10-1899
75.	64.10 ft	on 03-30-1898
76.	63.10 ft	on 02-28-1897
77.	56.50 ft	on 02-22-1893
78.	60.10 ft	on 02-26-1891
79.	63.30 ft	on 03-28-1890
80.	60.50 ft	on 02-06-1887
81.	60.50 ft	on 04-10-1886
82.	74.40 ft	on 02-16-1884
83.	72.20 ft	on 02-16-1883
84.	65.10 ft	on 02-22-1882
85.	57.60 ft	on 02-19-1880
86.	57.30 ft	on 01-21-1877
87.	60.10 ft	on 01-30-1876
88.	57.10 ft	on 08-08-1875
89.	64.30 ft	on 03-15-1867
90.	59.60 ft	on 02-24-1859
91.	68.80 ft	on 12-17-1847
92.	69.60 ft	on 02-21-1832

1.	85.44 ft	on 01-27-1937
2.	74.40 ft	on 02-16-1884
3.	74.40 ft	on 03-07-1945
4.	73.46 ft	on 03-13-1964
5.	72.70 ft	on 04-02-1913
6.	72.20 ft	on 02-16-1883
7.	70.47 ft	on 03-07-1997
8.	69.60 ft	on 02-21-1832
9.	69.10 ft	on 01-22-1907
10.	68.80 ft	on 12-17-1847
11.	68.00 ft	on 04-18-1948
12.	67.98 ft	on 04-09-2025	(P)
13.	67.09 ft	on 02-26-2018
14.	66.10 ft	on 03-23-1933
15.	65.20 ft	on 03-05-1962
16.	65.10 ft	on 02-22-1882
17.	65.10 ft	on 03-23-1943
18.	64.30 ft	on 03-15-1867
19.	64.10 ft	on 03-30-1898
20.	63.82 ft	on 03-10-1955
21.	63.70 ft	on 03-28-1936
22.	63.60 ft	on 12-14-1978
23.	63.40 ft	on 02-06-1950
24.	63.30 ft	on 03-12-1967
25.	63.30 ft	on 03-28-1890
26.	63.10 ft	on 02-28-1897
27.	62.88 ft	on 04-27-2011
28.	62.80 ft	on 01-27-1927
29.	62.71 ft	on 03-22-1963
30.	62.00 ft	on 05-10-1961
31.	61.96 ft	on 02-09-1939
32.	61.90 ft	on 04-25-1940
33.	61.29 ft	on 03-16-2015
34.	61.00 ft	on 04-28-1901
35.	60.60 ft	on 02-27-1909
36.	60.60 ft	on 01-07-1924
37.	60.50 ft	on 02-06-1887
38.	60.50 ft	on 04-10-1886
39.	60.40 ft	on 03-10-1899
40.	60.30 ft	on 01-04-1991
41.	60.13 ft	on 05-12-1958
42.	60.10 ft	on 02-26-1891
43.	60.10 ft	on 01-30-1876
44.	60.00 ft	on 02-03-1952
45.	59.90 ft	on 12-28-1921
46.	59.86 ft	on 05-31-1968
47.	59.81 ft	on 03-06-2021	(P)
48.	59.74 ft	on 02-14-2019	(P)
49.	59.60 ft	on 02-24-1859
50.	59.59 ft	on 02-20-2025	(P)
51.	59.36 ft	on 01-26-1996
52.	59.20 ft	on 03-23-1920
53.	59.13 ft	on 04-19-1972
54.	59.09 ft	on 01-12-2005
55.	58.90 ft	on 04-06-1908
56.	58.90 ft	on 01-15-1916
57.	58.66 ft	on 03-17-1978
58.	58.53 ft	on 12-14-1972
59.	58.37 ft	on 02-19-1989
60.	58.20 ft	on 03-19-1917
61.	58.00 ft	on 12-10-1950
62.	57.83 ft	on 03-12-2011
63.	57.73 ft	on 01-16-1974
64.	57.60 ft	on 02-19-1880
65.	57.56 ft	on 03-21-2008
66.	57.50 ft	on 02-08-1915
67.	57.44 ft	on 01-26-1959
68.	57.30 ft	on 01-21-1877
69.	57.22 ft	on 03-19-1956
70.	57.10 ft	on 08-08-1875
71.	57.00 ft	on 02-27-2019	(P)
72.	57.00 ft	on 03-18-1935
73.	56.97 ft	on 05-07-1983
74.	56.80 ft	on 02-05-1932
75.	56.70 ft	on 12-24-1990
76.	56.69 ft	on 02-16-2020	(P)
77.	56.50 ft	on 02-22-1893
78.	56.40 ft	on 01-29-1949
79.	56.40 ft	on 03-28-1912
80.	56.40 ft	on 03-09-1903
81.	56.30 ft	on 02-01-1994
82.	56.13 ft	on 03-18-1975
83.	56.10 ft	on 01-18-1910
84.	55.94 ft	on 05-22-1995
85.	55.92 ft	on 03-14-1994
86.	55.72 ft	on 04-06-1970
87.	55.50 ft	on 04-12-1957
88.	55.30 ft	on 05-12-1996
89.	55.10 ft	on 03-06-1929
90.	55.07 ft	on 01-08-2004
91.	55.00 ft	on 01-07-1919
92.	54.69 ft	on 03-24-2002