Black River at Black Rock

Last updated: Jun 22, 2025, 11:23 AM UTC

Flood Warning

Heat Advisory

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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

Observed (OBS) 06/22/2025 5:00 AM CDT

Official Forecast (FCST) 06/21/2025 7:28 PM CDT

Record: 31.9 ft

Low Threshold: 0 ft

CATEGORY STAGE

Major Flooding 28 ft

Moderate Flooding 25 ft

Minor Flooding 14 ft

Action 12 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 24 hours into the future from the forecast issuance time.
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	CATEGORY	STAGE
	Major Flooding	28 ft
	Moderate Flooding	25 ft
	Minor Flooding	14 ft
	Action	12 ft

Flood Impacts 🅘

32 - The crest of record is 31.9 feet which occurred on August 21, 1915. Heavy rainfall was due to a hurricane which made landfall near Galveston Texas, and moved across Arkansas.
31.5 - This is an extremely serious situation, residential areas of Black Rock, Portia, and Powhatan may be flooded. Flood crest of December 1982 was 31.51 feet, the second highest crest of record. Major flood damages to roads, bridges, and homes along the river in Lawrence, Jackson, and Independence counties. River is very dangerous at this level. State Highways 25, 37, and 69 will be flooded. Stay away from the edges of high banks along the river, bank caving is possible.
28.5 - Highway 412 between Highway 63 and Walnut Ridge becomes inundated by flood waters.

Gauge Info

Coordinates	36.1025, -91.0978
RFC	LMRFC
State	AR
WFO	LZK
County	Lawrence
Data Provider(s)
US Geological Survey	USGS--Water Resources of the United States
USGS	07072500
COE	Website

Gauge Location

Recent Crests

1.	29.74 ft	on 04-06-2025
2.	16.16 ft	on 04-21-2023
3.	24.03 ft	on 03-04-2023
4.	22.72 ft	on 02-10-2023
5.	17.40 ft	on 01-03-2023

Historic Crests

1.	31.90 ft	on 08-21-1915
2.	31.51 ft	on 12-04-1982
3.	30.45 ft	on 04-27-2011
4.	30.30 ft	on 04-15-1927
5.	30.00 ft	on 05-01-2017

Gauge Photos

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Probability Information

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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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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.

Resources

Hydrologic Resource Links

Additional Resource Links

WFO Information

Weather Forecast Office

Little Rock

8400 Remount Road

North Little Rock, AR 72118

(501) 834-0308

Ask Questions/Webmaster

Official Homepage

1.	29.74 ft	on 04-06-2025
2.	16.16 ft	on 04-21-2023
3.	24.03 ft	on 03-04-2023
4.	22.72 ft	on 02-10-2023
5.	17.40 ft	on 01-03-2023
6.	24.00 ft	on 05-09-2019
7.	23.29 ft	on 03-02-2018
8.	23.43 ft	on 02-25-2018
9.	30.00 ft	on 05-01-2017
10.	17.21 ft	on 03-29-2017
11.	27.15 ft	on 12-29-2015
12.	18.56 ft	on 05-31-2015
13.	20.82 ft	on 05-12-2015
14.	24.40 ft	on 03-14-2015
15.	25.74 ft	on 04-29-2014
16.	19.01 ft	on 08-12-2013
17.	21.12 ft	on 12-06-2011
18.	30.45 ft	on 04-27-2011
19.	24.41 ft	on 12-26-2009
20.	27.60 ft	on 10-31-2009
21.	22.74 ft	on 05-10-2009
22.	28.61 ft	on 04-12-2008
23.	29.74 ft	on 03-20-2008
24.	16.49 ft	on 02-23-2008
25.	24.58 ft	on 01-16-2007
26.	24.60 ft	on 09-24-2006	(P)
27.	20.66 ft	on 11-20-2003
28.	24.86 ft	on 05-19-2002
29.	25.43 ft	on 03-27-2002
30.	23.29 ft	on 12-18-2001
31.	18.94 ft	on 05-28-2000
32.	19.34 ft	on 04-15-1999
33.	21.13 ft	on 03-21-1998
34.	25.05 ft	on 04-06-1997
35.	20.47 ft	on 05-16-1996
36.	23.00 ft	on 11-07-1994
37.	23.15 ft	on 11-19-1993
38.	21.80 ft	on 04-22-1992
39.	23.06 ft	on 11-21-1991
40.	24.64 ft	on 04-19-1991
41.	21.38 ft	on 05-05-1990
42.	25.96 ft	on 02-16-1989
43.	22.26 ft	on 12-27-1987
44.	21.81 ft	on 11-28-1985
45.	25.90 ft	on 04-01-1985
46.	26.22 ft	on 12-23-1984
47.	31.51 ft	on 12-04-1982
48.	24.92 ft	on 02-01-1982
49.	25.61 ft	on 03-04-1979
50.	28.10 ft	on 03-29-1977
51.	27.90 ft	on 03-29-1975
52.	25.93 ft	on 12-05-1973
53.	29.24 ft	on 04-24-1973
54.	23.04 ft	on 04-26-1970
55.	27.72 ft	on 01-31-1969
56.	23.80 ft	on 05-17-1968
57.	26.80 ft	on 01-02-1966
58.	27.80 ft	on 03-10-1964
59.	28.00 ft	on 05-08-1961
60.	25.10 ft	on 11-18-1958
61.	24.50 ft	on 05-06-1958
62.	26.90 ft	on 04-05-1957
63.	23.30 ft	on 11-27-1951
64.	23.10 ft	on 02-22-1951
65.	25.90 ft	on 01-05-1950
66.	28.50 ft	on 01-25-1949
67.	23.60 ft	on 06-01-1946
68.	27.20 ft	on 03-31-1945
69.	22.00 ft	on 04-24-1944
70.	23.00 ft	on 05-12-1943
71.	24.80 ft	on 04-18-1939
72.	25.50 ft	on 02-19-1938
73.	26.20 ft	on 01-16-1937
74.	26.70 ft	on 03-12-1935
75.	23.10 ft	on 05-22-1933
76.	23.60 ft	on 01-15-1930
77.	24.70 ft	on 01-26-1929
78.	26.20 ft	on 06-14-1928
79.	30.30 ft	on 04-15-1927
80.	20.80 ft	on 10-18-1925
81.	24.30 ft	on 05-16-1923
82.	23.40 ft	on 04-09-1922
83.	25.70 ft	on 04-28-1921
84.	25.90 ft	on 05-14-1918
85.	24.60 ft	on 04-03-1917
86.	26.50 ft	on 01-31-1916
87.	31.90 ft	on 08-21-1915
88.	24.40 ft	on 01-12-1913
89.	23.50 ft	on 04-28-1912
90.	25.00 ft	on 03-10-1909
91.	23.40 ft	on 05-07-1908
92.	26.00 ft	on 01-04-1907
93.	24.50 ft	on 01-23-1906
94.	22.90 ft	on 05-08-1905

1.	31.90 ft	on 08-21-1915
2.	31.51 ft	on 12-04-1982
3.	30.45 ft	on 04-27-2011
4.	30.30 ft	on 04-15-1927
5.	30.00 ft	on 05-01-2017
6.	29.74 ft	on 03-20-2008
7.	29.74 ft	on 04-06-2025
8.	29.24 ft	on 04-24-1973
9.	28.61 ft	on 04-12-2008
10.	28.50 ft	on 01-25-1949
11.	28.10 ft	on 03-29-1977
12.	28.00 ft	on 05-08-1961
13.	27.90 ft	on 03-29-1975
14.	27.80 ft	on 03-10-1964
15.	27.72 ft	on 01-31-1969
16.	27.60 ft	on 10-31-2009
17.	27.20 ft	on 03-31-1945
18.	27.15 ft	on 12-29-2015
19.	26.90 ft	on 04-05-1957
20.	26.80 ft	on 01-02-1966
21.	26.70 ft	on 03-12-1935
22.	26.50 ft	on 01-31-1916
23.	26.22 ft	on 12-23-1984
24.	26.20 ft	on 06-14-1928
25.	26.20 ft	on 01-16-1937
26.	26.00 ft	on 01-04-1907
27.	25.96 ft	on 02-16-1989
28.	25.93 ft	on 12-05-1973
29.	25.90 ft	on 01-05-1950
30.	25.90 ft	on 04-01-1985
31.	25.90 ft	on 05-14-1918
32.	25.74 ft	on 04-29-2014
33.	25.70 ft	on 04-28-1921
34.	25.61 ft	on 03-04-1979
35.	25.50 ft	on 02-19-1938
36.	25.43 ft	on 03-27-2002
37.	25.10 ft	on 11-18-1958
38.	25.05 ft	on 04-06-1997
39.	25.00 ft	on 03-10-1909
40.	24.92 ft	on 02-01-1982
41.	24.86 ft	on 05-19-2002
42.	24.80 ft	on 04-18-1939
43.	24.70 ft	on 01-26-1929
44.	24.64 ft	on 04-19-1991
45.	24.60 ft	on 04-03-1917
46.	24.60 ft	on 09-24-2006	(P)
47.	24.58 ft	on 01-16-2007
48.	24.50 ft	on 01-23-1906
49.	24.50 ft	on 05-06-1958
50.	24.41 ft	on 12-26-2009
51.	24.40 ft	on 01-12-1913
52.	24.40 ft	on 03-14-2015
53.	24.30 ft	on 05-16-1923
54.	24.03 ft	on 03-04-2023
55.	24.00 ft	on 05-09-2019
56.	23.80 ft	on 05-17-1968
57.	23.60 ft	on 01-15-1930
58.	23.60 ft	on 06-01-1946
59.	23.50 ft	on 04-28-1912
60.	23.43 ft	on 02-25-2018
61.	23.40 ft	on 05-07-1908
62.	23.40 ft	on 04-09-1922
63.	23.30 ft	on 11-27-1951
64.	23.29 ft	on 12-18-2001
65.	23.29 ft	on 03-02-2018
66.	23.15 ft	on 11-19-1993
67.	23.10 ft	on 02-22-1951
68.	23.10 ft	on 05-22-1933
69.	23.06 ft	on 11-21-1991
70.	23.04 ft	on 04-26-1970
71.	23.00 ft	on 05-12-1943
72.	23.00 ft	on 11-07-1994
73.	22.90 ft	on 05-08-1905
74.	22.74 ft	on 05-10-2009
75.	22.72 ft	on 02-10-2023
76.	22.26 ft	on 12-27-1987
77.	22.00 ft	on 04-24-1944
78.	21.81 ft	on 11-28-1985
79.	21.80 ft	on 04-22-1992
80.	21.38 ft	on 05-05-1990
81.	21.13 ft	on 03-21-1998
82.	21.12 ft	on 12-06-2011
83.	20.82 ft	on 05-12-2015
84.	20.80 ft	on 10-18-1925
85.	20.66 ft	on 11-20-2003
86.	20.47 ft	on 05-16-1996
87.	19.34 ft	on 04-15-1999
88.	19.01 ft	on 08-12-2013
89.	18.94 ft	on 05-28-2000
90.	18.56 ft	on 05-31-2015
91.	17.40 ft	on 01-03-2023
92.	17.21 ft	on 03-29-2017
93.	16.49 ft	on 02-23-2008
94.	16.16 ft	on 04-21-2023