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Merrimack River at Lowell
 Total Drainage Area: 4,635 sq. miles 
 Drainage Area Controlled by Corps Dams: 1,619 sq. miles (35%) 
 Warning Flow/Stage: 28,500 cfs / 49.0 feet 
 Flood Flow/Stage: 45,100 cfs / 52.0 feet 
Date Time
(Eastern)
Stage
(ft)
Flow
(cfs)
CSM
(cfs / sq. mi.)
25 Jun 2025 12:30 AM 43.38 5,547 1.2
25 Jun 2025 12:15 AM 43.38 5,547 1.2
25 Jun 2025 12:00 AM 43.39 5,576 1.2
24 Jun 2025 11:45 PM 43.38 5,547 1.2
24 Jun 2025 11:30 PM 43.38 5,547 1.2
24 Jun 2025 11:15 PM 43.39 5,576 1.2
24 Jun 2025 11:00 PM 43.38 5,547 1.2
24 Jun 2025 10:45 PM 43.38 5,547 1.2
24 Jun 2025 10:30 PM 43.38 5,547 1.2
24 Jun 2025 10:15 PM 43.38 5,547 1.2
24 Jun 2025 10:00 PM 43.38 5,547 1.2
24 Jun 2025 09:45 PM 43.38 5,547 1.2
24 Jun 2025 09:30 PM 43.38 5,547 1.2
24 Jun 2025 09:15 PM 43.38 5,547 1.2
24 Jun 2025 09:00 PM 43.39 5,576 1.2
24 Jun 2025 08:45 PM 43.40 5,606 1.2
24 Jun 2025 08:30 PM 43.40 5,606 1.2
24 Jun 2025 08:15 PM 43.40 5,606 1.2
24 Jun 2025 08:00 PM 43.40 5,606 1.2
24 Jun 2025 07:45 PM 43.41 5,636 1.2
24 Jun 2025 07:30 PM 43.44 5,727 1.2
24 Jun 2025 07:15 PM 43.44 5,727 1.2
24 Jun 2025 07:00 PM 43.47 5,818 1.3
24 Jun 2025 06:45 PM 43.49 5,879 1.3
24 Jun 2025 06:30 PM 43.51 5,941 1.3
24 Jun 2025 06:15 PM 43.50 5,910 1.3
24 Jun 2025 06:00 PM 43.55 6,065 1.3
24 Jun 2025 05:45 PM 43.56 6,096 1.3
24 Jun 2025 05:30 PM 43.60 6,221 1.3
24 Jun 2025 05:15 PM 43.62 6,285 1.4
24 Jun 2025 05:00 PM 43.64 6,348 1.4
24 Jun 2025 04:45 PM 43.65 6,380 1.4
24 Jun 2025 04:30 PM 43.64 6,348 1.4
24 Jun 2025 04:15 PM 43.65 6,380 1.4
24 Jun 2025 04:00 PM 43.64 6,348 1.4
24 Jun 2025 03:45 PM 43.66 6,412 1.4
24 Jun 2025 03:30 PM 43.66 6,412 1.4
24 Jun 2025 03:15 PM 43.65 6,380 1.4
24 Jun 2025 03:00 PM 43.67 6,444 1.4
24 Jun 2025 02:45 PM 43.65 6,380 1.4
24 Jun 2025 02:30 PM 43.66 6,412 1.4
24 Jun 2025 02:15 PM 43.65 6,380 1.4
24 Jun 2025 02:00 PM 43.65 6,380 1.4
24 Jun 2025 01:45 PM 43.66 6,412 1.4
24 Jun 2025 01:30 PM 43.66 6,412 1.4
24 Jun 2025 01:15 PM 43.65 6,380 1.4
24 Jun 2025 01:00 PM 43.66 6,412 1.4
24 Jun 2025 12:45 PM 43.65 6,380 1.4
24 Jun 2025 12:30 PM 43.67 6,444 1.4
24 Jun 2025 12:15 PM 43.68 6,476 1.4
24 Jun 2025 12:00 PM 43.69 6,508 1.4
24 Jun 2025 11:45 AM 43.70 6,540 1.4
24 Jun 2025 11:30 AM 43.69 6,508 1.4
24 Jun 2025 11:15 AM 43.71 6,571 1.4
24 Jun 2025 11:00 AM 43.71 6,571 1.4
24 Jun 2025 10:45 AM 43.69 6,508 1.4
24 Jun 2025 10:30 AM 43.71 6,571 1.4
24 Jun 2025 10:15 AM 43.72 6,603 1.4
24 Jun 2025 10:00 AM 43.73 6,634 1.4
24 Jun 2025 09:45 AM 43.74 6,666 1.4
24 Jun 2025 09:30 AM 43.75 6,698 1.4
24 Jun 2025 09:15 AM 43.72 6,603 1.4
24 Jun 2025 09:00 AM 43.69 6,508 1.4
24 Jun 2025 08:45 AM 43.67 6,444 1.4
24 Jun 2025 08:30 AM 43.67 6,444 1.4
24 Jun 2025 08:15 AM 43.67 6,444 1.4
24 Jun 2025 08:00 AM 43.67 6,444 1.4
24 Jun 2025 07:45 AM 43.66 6,412 1.4
24 Jun 2025 07:30 AM 43.66 6,412 1.4
24 Jun 2025 07:15 AM 43.66 6,412 1.4
24 Jun 2025 07:00 AM 43.65 6,380 1.4
24 Jun 2025 06:45 AM 43.65 6,380 1.4
24 Jun 2025 06:30 AM 43.65 6,380 1.4
24 Jun 2025 06:15 AM 43.65 6,380 1.4
24 Jun 2025 06:00 AM 43.65 6,380 1.4
24 Jun 2025 05:45 AM 43.65 6,380 1.4
24 Jun 2025 05:30 AM 43.66 6,412 1.4
24 Jun 2025 05:15 AM 43.65 6,380 1.4
24 Jun 2025 05:00 AM 43.66 6,412 1.4
24 Jun 2025 04:45 AM 43.66 6,412 1.4
24 Jun 2025 04:30 AM 43.65 6,380 1.4
24 Jun 2025 04:15 AM 43.65 6,380 1.4
24 Jun 2025 04:00 AM 43.65 6,380 1.4
24 Jun 2025 03:45 AM 43.65 6,380 1.4
24 Jun 2025 03:30 AM 43.65 6,380 1.4
24 Jun 2025 03:15 AM 43.65 6,380 1.4
24 Jun 2025 03:00 AM 43.65 6,380 1.4
24 Jun 2025 02:45 AM 43.65 6,380 1.4
24 Jun 2025 02:30 AM 43.65 6,380 1.4
24 Jun 2025 02:15 AM 43.65 6,380 1.4
24 Jun 2025 02:00 AM 43.65 6,380 1.4
24 Jun 2025 01:45 AM 43.65 6,380 1.4
24 Jun 2025 01:30 AM 43.65 6,380 1.4
24 Jun 2025 01:15 AM 43.66 6,412 1.4
24 Jun 2025 01:00 AM 43.67 6,444 1.4
24 Jun 2025 12:45 AM 43.68 6,476 1.4
24 Jun 2025 12:30 AM 43.68 6,476 1.4
24 Jun 2025 12:15 AM 43.68 6,476 1.4
24 Jun 2025 12:00 AM 43.68 6,476 1.4
23 Jun 2025 11:45 PM 43.68 6,476 1.4
23 Jun 2025 11:30 PM 43.66 6,412 1.4
23 Jun 2025 11:15 PM 43.66 6,412 1.4
23 Jun 2025 11:00 PM 43.65 6,380 1.4
23 Jun 2025 10:45 PM 43.65 6,380 1.4
23 Jun 2025 10:30 PM 43.65 6,380 1.4
23 Jun 2025 10:15 PM 43.65 6,380 1.4
23 Jun 2025 10:00 PM 43.65 6,380 1.4
23 Jun 2025 09:45 PM 43.65 6,380 1.4
23 Jun 2025 09:30 PM 43.65 6,380 1.4
23 Jun 2025 09:15 PM 43.66 6,412 1.4
23 Jun 2025 09:00 PM 43.66 6,412 1.4
23 Jun 2025 08:45 PM 43.67 6,444 1.4
23 Jun 2025 08:30 PM 43.67 6,444 1.4
23 Jun 2025 08:15 PM 43.67 6,444 1.4
23 Jun 2025 08:00 PM 43.68 6,476 1.4
23 Jun 2025 07:45 PM 43.69 6,508 1.4
23 Jun 2025 07:30 PM 43.70 6,540 1.4
23 Jun 2025 07:15 PM 43.70 6,540 1.4
23 Jun 2025 07:00 PM 43.70 6,540 1.4
23 Jun 2025 06:45 PM 43.69 6,508 1.4
23 Jun 2025 06:30 PM 43.70 6,540 1.4
23 Jun 2025 06:15 PM 43.70 6,540 1.4
23 Jun 2025 06:00 PM 43.69 6,508 1.4
23 Jun 2025 05:45 PM 43.69 6,508 1.4
23 Jun 2025 05:30 PM 43.68 6,476 1.4
23 Jun 2025 05:15 PM 43.70 6,540 1.4
23 Jun 2025 05:00 PM 43.69 6,508 1.4
23 Jun 2025 04:45 PM 43.69 6,508 1.4
23 Jun 2025 04:30 PM 43.69 6,508 1.4
23 Jun 2025 04:15 PM 43.69 6,508 1.4
23 Jun 2025 04:00 PM 43.68 6,476 1.4
23 Jun 2025 03:45 PM 43.67 6,444 1.4
23 Jun 2025 03:30 PM 43.68 6,476 1.4
23 Jun 2025 03:15 PM 43.68 6,476 1.4
23 Jun 2025 03:00 PM 43.70 6,540 1.4
23 Jun 2025 02:45 PM 43.71 6,571 1.4
23 Jun 2025 02:30 PM 43.72 6,603 1.4
23 Jun 2025 02:15 PM 43.71 6,571 1.4
23 Jun 2025 02:00 PM 43.70 6,540 1.4
23 Jun 2025 01:45 PM 43.72 6,603 1.4
23 Jun 2025 01:30 PM 43.73 6,634 1.4
23 Jun 2025 01:15 PM 43.72 6,603 1.4
23 Jun 2025 01:00 PM 43.73 6,634 1.4
23 Jun 2025 12:45 PM 43.72 6,603 1.4
23 Jun 2025 12:30 PM 43.71 6,571 1.4
23 Jun 2025 12:15 PM 43.72 6,603 1.4
23 Jun 2025 12:00 PM 43.74 6,666 1.4
23 Jun 2025 11:45 AM 43.75 6,698 1.4
23 Jun 2025 11:30 AM 43.76 6,729 1.5
23 Jun 2025 11:15 AM 43.77 6,761 1.5
23 Jun 2025 11:00 AM 43.76 6,729 1.5
23 Jun 2025 10:45 AM 43.75 6,698 1.4
23 Jun 2025 10:30 AM 43.72 6,603 1.4
23 Jun 2025 10:15 AM 43.71 6,571 1.4
23 Jun 2025 10:00 AM 43.73 6,634 1.4
23 Jun 2025 09:45 AM 43.79 6,825 1.5
23 Jun 2025 09:30 AM 43.85 7,018 1.5
23 Jun 2025 09:15 AM 43.84 6,985 1.5
23 Jun 2025 09:00 AM 43.81 6,889 1.5
23 Jun 2025 08:45 AM 43.80 6,857 1.5
23 Jun 2025 08:30 AM 43.80 6,857 1.5
23 Jun 2025 08:15 AM 43.81 6,889 1.5
23 Jun 2025 08:00 AM 43.82 6,921 1.5
23 Jun 2025 07:45 AM 43.82 6,921 1.5
23 Jun 2025 07:30 AM 43.82 6,921 1.5
23 Jun 2025 07:15 AM 43.80 6,857 1.5
23 Jun 2025 07:00 AM 43.79 6,825 1.5
23 Jun 2025 06:45 AM 43.78 6,793 1.5
23 Jun 2025 06:30 AM 43.77 6,761 1.5
23 Jun 2025 06:15 AM 43.75 6,698 1.4
23 Jun 2025 06:00 AM 43.74 6,666 1.4
23 Jun 2025 05:45 AM 43.72 6,603 1.4
23 Jun 2025 05:30 AM 43.71 6,571 1.4
23 Jun 2025 05:15 AM 43.69 6,508 1.4
23 Jun 2025 05:00 AM 43.67 6,444 1.4
23 Jun 2025 04:45 AM 43.65 6,380 1.4
Report Generated June 25, 2025 12:44 am