Ohio River at McAlpine Upper

Last updated: Jul 20, 2025, 3:58 AM UTC

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

US Geological Survey
Observations courtesy of U.S. Geological Survey

Scale to Flood Categories

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Traces and Thresholds Click to turn on/off display

CATEGORY STAGE

Major Flooding 38 ft

Moderate Flooding 30 ft

Minor Flooding 23 ft

Action 21 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	38 ft
	Moderate Flooding	30 ft
	Minor Flooding	23 ft
	Action	21 ft

Flood Impacts 🅘

55.2 - Water reaches top of floodwall.
53 - Sandbagging of low areas of Louisville floodwall begin.
52 - Flooding begins in Jeffersonville city limits. Shelby Street in Louisville is closed at floodgate.

Gauge Info

Coordinates	38.2658, -85.7689
RFC	OHRFC
State	KY
WFO	LMK
County	Jefferson
Data Provider(s)
US Geological Survey	USGS--Water Resources of the United States
USGS	03293551

Gauge Location

Recent Crests

1.	36.63 ft	on 04-09-2025	(P)
2.	28.30 ft	on 02-20-2025	(P)
3.	28.83 ft	on 03-06-2021	(P)
4.	25.86 ft	on 02-17-2020	(P)
5.	26.06 ft	on 02-27-2019

Historic Crests

1.	52.15 ft	on 01-27-1937
2.	42.10 ft	on 03-08-1945
3.	41.70 ft	on 02-16-1884
4.	41.20 ft	on 03-12-1964
5.	39.50 ft	on 02-16-1883

Vertical Datum Table

type	NGVD29
major Flooding	445.18 ft
moderate Flooding	437.18 ft
minor Flooding	430.18 ft
action	428.18 ft
Latest Value	N/A
Gauge Zero	407.18 ft

Gauge Photos

Photo 1 of 8

Louisville Great Lawn Area

Probability Information

Photo 1 of 3

Weekly Chance of Exceeding Levels
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Chance of Exceeding Levels During Entire Period
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Short Range Forecast Uncertainty
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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.

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.	36.63 ft	on 04-09-2025	(P)
2.	28.30 ft	on 02-20-2025	(P)
3.	28.83 ft	on 03-06-2021	(P)
4.	25.86 ft	on 02-17-2020	(P)
5.	26.06 ft	on 02-27-2019
6.	28.68 ft	on 02-14-2019
7.	35.72 ft	on 02-26-2018
8.	29.77 ft	on 03-16-2015
9.	31.13 ft	on 04-27-2011
10.	26.63 ft	on 03-12-2011
11.	26.09 ft	on 03-21-2008
12.	28.34 ft	on 01-12-2005
13.	24.57 ft	on 01-08-2004
14.	23.82 ft	on 03-24-2002
15.	25.31 ft	on 02-22-2000
16.	38.76 ft	on 03-07-1997
17.	24.10 ft	on 05-12-1996
18.	28.10 ft	on 01-26-1996
19.	24.80 ft	on 05-22-1995
20.	24.60 ft	on 03-14-1994
21.	25.20 ft	on 02-01-1994
22.	25.37 ft	on 12-24-1991
23.	28.97 ft	on 01-04-1991
24.	25.40 ft	on 12-24-1990
25.	26.90 ft	on 02-19-1989
26.	29.90 ft	on 03-02-1979
27.	31.90 ft	on 12-14-1978
28.	24.40 ft	on 04-01-1975
29.	26.20 ft	on 01-16-1974
30.	27.30 ft	on 04-20-1972
31.	23.40 ft	on 04-06-1970
32.	28.50 ft	on 05-31-1968
33.	31.50 ft	on 03-13-1967
34.	23.00 ft	on 02-18-1966
35.	41.20 ft	on 03-12-1964
36.	31.50 ft	on 03-22-1963
37.	33.40 ft	on 03-04-1962
38.	33.00 ft	on 05-10-1961
39.	25.60 ft	on 01-26-1959
40.	28.30 ft	on 05-12-1958
41.	23.80 ft	on 04-12-1957
42.	25.40 ft	on 03-19-1956
43.	31.80 ft	on 03-10-1955
44.	25.00 ft	on 03-27-1952
45.	28.00 ft	on 02-04-1952
46.	31.40 ft	on 02-07-1950
47.	24.60 ft	on 01-29-1949
48.	36.00 ft	on 04-19-1948
49.	42.10 ft	on 03-08-1945
50.	33.00 ft	on 03-23-1943
51.	30.00 ft	on 04-26-1940
52.	30.10 ft	on 02-09-1939
53.	52.15 ft	on 01-27-1937
54.	31.60 ft	on 03-29-1936
55.	25.00 ft	on 03-18-1935
56.	34.10 ft	on 03-23-1933
57.	24.70 ft	on 02-05-1932
58.	23.40 ft	on 03-05-1929
59.	30.60 ft	on 01-27-1927
60.	27.90 ft	on 01-07-1924
61.	25.20 ft	on 03-19-1922
62.	27.30 ft	on 12-28-1921
63.	26.50 ft	on 03-23-1920
64.	25.50 ft	on 03-19-1917
65.	26.20 ft	on 01-15-1916
66.	24.90 ft	on 02-08-1915
67.	39.40 ft	on 04-02-1913
68.	23.70 ft	on 03-28-1912
69.	28.00 ft	on 02-27-1909
70.	26.30 ft	on 04-06-1908
71.	36.40 ft	on 01-22-1907
72.	23.50 ft	on 03-09-1903
73.	28.30 ft	on 04-28-1901
74.	27.80 ft	on 03-10-1899
75.	31.30 ft	on 03-30-1898
76.	30.30 ft	on 02-28-1897
77.	23.90 ft	on 02-22-1893
78.	27.40 ft	on 02-27-1891
79.	30.40 ft	on 03-28-1890
80.	27.60 ft	on 02-06-1887
81.	28.70 ft	on 04-10-1886
82.	41.70 ft	on 02-16-1884
83.	39.50 ft	on 02-16-1883
84.	32.40 ft	on 02-22-1882
85.	25.00 ft	on 02-19-1880
86.	24.90 ft	on 01-21-1877
87.	27.50 ft	on 01-30-1876
88.	25.30 ft	on 09-07-1875

1.	52.15 ft	on 01-27-1937
2.	42.10 ft	on 03-08-1945
3.	41.70 ft	on 02-16-1884
4.	41.20 ft	on 03-12-1964
5.	39.50 ft	on 02-16-1883
6.	39.40 ft	on 04-02-1913
7.	38.76 ft	on 03-07-1997
8.	36.63 ft	on 04-09-2025	(P)
9.	36.40 ft	on 01-22-1907
10.	36.00 ft	on 04-19-1948
11.	35.72 ft	on 02-26-2018
12.	34.10 ft	on 03-23-1933
13.	33.40 ft	on 03-04-1962
14.	33.00 ft	on 05-10-1961
15.	33.00 ft	on 03-23-1943
16.	32.40 ft	on 02-22-1882
17.	31.90 ft	on 12-14-1978
18.	31.80 ft	on 03-10-1955
19.	31.60 ft	on 03-29-1936
20.	31.50 ft	on 03-22-1963
21.	31.50 ft	on 03-13-1967
22.	31.40 ft	on 02-07-1950
23.	31.30 ft	on 03-30-1898
24.	31.13 ft	on 04-27-2011
25.	30.60 ft	on 01-27-1927
26.	30.40 ft	on 03-28-1890
27.	30.30 ft	on 02-28-1897
28.	30.10 ft	on 02-09-1939
29.	30.00 ft	on 04-26-1940
30.	29.90 ft	on 03-02-1979
31.	29.77 ft	on 03-16-2015
32.	28.97 ft	on 01-04-1991
33.	28.83 ft	on 03-06-2021	(P)
34.	28.70 ft	on 04-10-1886
35.	28.68 ft	on 02-14-2019
36.	28.50 ft	on 05-31-1968
37.	28.34 ft	on 01-12-2005
38.	28.30 ft	on 02-20-2025	(P)
39.	28.30 ft	on 05-12-1958
40.	28.30 ft	on 04-28-1901
41.	28.10 ft	on 01-26-1996
42.	28.00 ft	on 02-27-1909
43.	28.00 ft	on 02-04-1952
44.	27.90 ft	on 01-07-1924
45.	27.80 ft	on 03-10-1899
46.	27.60 ft	on 02-06-1887
47.	27.50 ft	on 01-30-1876
48.	27.40 ft	on 02-27-1891
49.	27.30 ft	on 12-28-1921
50.	27.30 ft	on 04-20-1972
51.	26.90 ft	on 02-19-1989
52.	26.63 ft	on 03-12-2011
53.	26.50 ft	on 03-23-1920
54.	26.30 ft	on 04-06-1908
55.	26.20 ft	on 01-15-1916
56.	26.20 ft	on 01-16-1974
57.	26.09 ft	on 03-21-2008
58.	26.06 ft	on 02-27-2019
59.	25.86 ft	on 02-17-2020	(P)
60.	25.60 ft	on 01-26-1959
61.	25.50 ft	on 03-19-1917
62.	25.40 ft	on 12-24-1990
63.	25.40 ft	on 03-19-1956
64.	25.37 ft	on 12-24-1991
65.	25.31 ft	on 02-22-2000
66.	25.30 ft	on 09-07-1875
67.	25.20 ft	on 02-01-1994
68.	25.20 ft	on 03-19-1922
69.	25.00 ft	on 02-19-1880
70.	25.00 ft	on 03-18-1935
71.	25.00 ft	on 03-27-1952
72.	24.90 ft	on 01-21-1877
73.	24.90 ft	on 02-08-1915
74.	24.80 ft	on 05-22-1995
75.	24.70 ft	on 02-05-1932
76.	24.60 ft	on 03-14-1994
77.	24.60 ft	on 01-29-1949
78.	24.57 ft	on 01-08-2004
79.	24.40 ft	on 04-01-1975
80.	24.10 ft	on 05-12-1996
81.	23.90 ft	on 02-22-1893
82.	23.82 ft	on 03-24-2002
83.	23.80 ft	on 04-12-1957
84.	23.70 ft	on 03-28-1912
85.	23.50 ft	on 03-09-1903
86.	23.40 ft	on 03-05-1929
87.	23.40 ft	on 04-06-1970
88.	23.00 ft	on 02-18-1966