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Connecticut River at Holyoke
 Total Drainage Area: 8,309 sq. miles 
 Drainage Area Controlled by Corps Dams: 1,154 sq. miles (14%) 
 Warning Flow/Stage: 73,900 cfs / 22.0 feet 
 Flood Flow/Stage: 100,643 cfs / 26.5 feet 
Date Time
(Eastern)
Stage
(ft)
Flow
(cfs)
CSM
(cfs / sq. mi.)
11 Jun 2026 08:30 PM 7.43 9,783 1.2
11 Jun 2026 08:15 PM 7.42 9,755 1.2
11 Jun 2026 08:00 PM 7.40 9,698 1.2
11 Jun 2026 07:45 PM 7.40 9,698 1.2
11 Jun 2026 07:30 PM 7.39 9,670 1.2
11 Jun 2026 07:15 PM 7.40 9,698 1.2
11 Jun 2026 07:00 PM 7.37 9,614 1.2
11 Jun 2026 06:45 PM 7.35 9,557 1.2
11 Jun 2026 06:30 PM 7.33 9,501 1.1
11 Jun 2026 06:15 PM 7.32 9,473 1.1
11 Jun 2026 06:00 PM 7.32 9,473 1.1
11 Jun 2026 05:45 PM 7.29 9,389 1.1
11 Jun 2026 05:30 PM 7.26 9,305 1.1
11 Jun 2026 05:15 PM 7.24 9,249 1.1
11 Jun 2026 05:00 PM 7.22 9,193 1.1
11 Jun 2026 04:45 PM 7.19 9,109 1.1
11 Jun 2026 04:30 PM 7.13 8,942 1.1
11 Jun 2026 04:15 PM 7.03 8,666 1.0
11 Jun 2026 04:00 PM 6.84 8,146 1.0
11 Jun 2026 03:45 PM 6.80 8,037 1.0
11 Jun 2026 03:30 PM 6.73 7,848 .9
11 Jun 2026 03:15 PM 6.65 7,633 .9
11 Jun 2026 03:00 PM 6.68 7,713 .9
11 Jun 2026 02:45 PM 6.68 7,713 .9
11 Jun 2026 02:30 PM 6.69 7,740 .9
11 Jun 2026 02:15 PM 6.73 7,848 .9
11 Jun 2026 02:00 PM 6.76 7,929 1.0
11 Jun 2026 01:45 PM 6.82 8,091 1.0
11 Jun 2026 01:30 PM 6.83 8,118 1.0
11 Jun 2026 01:15 PM 6.88 8,255 1.0
11 Jun 2026 01:00 PM 6.88 8,255 1.0
11 Jun 2026 12:45 PM 6.90 8,309 1.0
11 Jun 2026 12:30 PM 6.92 8,364 1.0
11 Jun 2026 12:15 PM 6.95 8,446 1.0
11 Jun 2026 12:00 PM 6.98 8,528 1.0
11 Jun 2026 11:45 AM 7.01 8,611 1.0
11 Jun 2026 11:30 AM 7.04 8,693 1.1
11 Jun 2026 11:15 AM 7.07 8,776 1.1
11 Jun 2026 11:00 AM 7.12 8,915 1.1
11 Jun 2026 10:45 AM 7.16 9,026 1.1
11 Jun 2026 10:30 AM 7.22 9,193 1.1
11 Jun 2026 10:15 AM 7.28 9,361 1.1
11 Jun 2026 10:00 AM 7.31 9,445 1.1
11 Jun 2026 09:45 AM 7.35 9,557 1.2
11 Jun 2026 09:30 AM 7.40 9,698 1.2
11 Jun 2026 09:15 AM 7.48 9,925 1.2
11 Jun 2026 09:00 AM 7.53 10,067 1.2
11 Jun 2026 08:45 AM 7.60 10,267 1.2
11 Jun 2026 08:30 AM 7.73 10,640 1.3
11 Jun 2026 08:15 AM 7.89 11,121 1.3
11 Jun 2026 08:00 AM 7.89 11,121 1.3
11 Jun 2026 07:45 AM 7.89 11,121 1.3
11 Jun 2026 07:30 AM 7.89 11,121 1.3
11 Jun 2026 07:15 AM 7.89 11,121 1.3
11 Jun 2026 07:00 AM 7.89 11,121 1.3
11 Jun 2026 06:45 AM 7.88 11,091 1.3
11 Jun 2026 06:30 AM 7.89 11,121 1.3
11 Jun 2026 06:15 AM 7.89 11,121 1.3
11 Jun 2026 06:00 AM 7.89 11,121 1.3
11 Jun 2026 05:45 AM 7.88 11,091 1.3
11 Jun 2026 05:30 AM 7.89 11,121 1.3
11 Jun 2026 05:15 AM 7.88 11,091 1.3
11 Jun 2026 05:00 AM 7.87 11,061 1.3
11 Jun 2026 04:45 AM 7.87 11,061 1.3
11 Jun 2026 04:30 AM 7.87 11,061 1.3
11 Jun 2026 04:15 AM 7.86 11,030 1.3
11 Jun 2026 04:00 AM 7.85 11,000 1.3
11 Jun 2026 03:45 AM 7.82 10,909 1.3
11 Jun 2026 03:30 AM 7.82 10,909 1.3
11 Jun 2026 03:15 AM 7.83 10,939 1.3
11 Jun 2026 03:00 AM 7.83 10,939 1.3
11 Jun 2026 02:45 AM 7.83 10,939 1.3
11 Jun 2026 02:30 AM 7.83 10,939 1.3
11 Jun 2026 02:15 AM 7.83 10,939 1.3
11 Jun 2026 02:00 AM 7.83 10,939 1.3
11 Jun 2026 01:45 AM 7.84 10,970 1.3
11 Jun 2026 01:30 AM 7.84 10,970 1.3
11 Jun 2026 01:15 AM 7.85 11,000 1.3
11 Jun 2026 01:00 AM 7.85 11,000 1.3
11 Jun 2026 12:45 AM 7.86 11,030 1.3
11 Jun 2026 12:30 AM 7.86 11,030 1.3
11 Jun 2026 12:15 AM 7.83 10,939 1.3
11 Jun 2026 12:00 AM 7.82 10,909 1.3
10 Jun 2026 11:45 PM 7.83 10,939 1.3
10 Jun 2026 11:30 PM 7.84 10,970 1.3
10 Jun 2026 11:15 PM 7.84 10,970 1.3
10 Jun 2026 11:00 PM 7.85 11,000 1.3
10 Jun 2026 10:45 PM 7.86 11,030 1.3
10 Jun 2026 10:30 PM 7.87 11,061 1.3
10 Jun 2026 10:15 PM 7.88 11,091 1.3
10 Jun 2026 10:00 PM 7.90 11,152 1.3
10 Jun 2026 09:45 PM 7.90 11,152 1.3
10 Jun 2026 09:30 PM 7.91 11,182 1.4
10 Jun 2026 09:15 PM 7.92 11,212 1.4
10 Jun 2026 09:00 PM 7.94 11,273 1.4
10 Jun 2026 08:45 PM 7.95 11,304 1.4
10 Jun 2026 08:30 PM 7.97 11,365 1.4
10 Jun 2026 08:15 PM 7.98 11,395 1.4
10 Jun 2026 08:00 PM 8.01 11,487 1.4
10 Jun 2026 07:45 PM 8.03 11,548 1.4
10 Jun 2026 07:30 PM 8.05 11,610 1.4
10 Jun 2026 07:15 PM 8.08 11,702 1.4
10 Jun 2026 07:00 PM 8.13 11,856 1.4
10 Jun 2026 06:45 PM 8.19 12,042 1.5
10 Jun 2026 06:30 PM 8.24 12,197 1.5
10 Jun 2026 06:15 PM 8.25 12,228 1.5
10 Jun 2026 06:00 PM 8.27 12,290 1.5
10 Jun 2026 05:45 PM 8.29 12,352 1.5
10 Jun 2026 05:30 PM 8.31 12,415 1.5
10 Jun 2026 05:15 PM 8.33 12,477 1.5
10 Jun 2026 05:00 PM 8.35 12,540 1.5
10 Jun 2026 04:45 PM 8.36 12,571 1.5
10 Jun 2026 04:30 PM 8.37 12,602 1.5
10 Jun 2026 04:15 PM 8.37 12,602 1.5
10 Jun 2026 04:00 PM 8.38 12,634 1.5
10 Jun 2026 03:45 PM 8.40 12,697 1.5
10 Jun 2026 03:30 PM 8.40 12,697 1.5
10 Jun 2026 03:15 PM 8.41 12,728 1.5
10 Jun 2026 03:00 PM 8.44 12,822 1.5
10 Jun 2026 02:45 PM 8.45 12,854 1.6
10 Jun 2026 02:30 PM 8.45 12,854 1.6
10 Jun 2026 02:15 PM 8.45 12,854 1.6
10 Jun 2026 02:00 PM 8.46 12,885 1.6
10 Jun 2026 01:45 PM 8.46 12,885 1.6
10 Jun 2026 01:30 PM 8.46 12,885 1.6
10 Jun 2026 01:15 PM 8.46 12,885 1.6
10 Jun 2026 01:00 PM 8.47 12,917 1.6
10 Jun 2026 12:45 PM 8.48 12,948 1.6
10 Jun 2026 12:30 PM 8.47 12,917 1.6
10 Jun 2026 12:15 PM 8.48 12,948 1.6
10 Jun 2026 12:00 PM 8.50 13,011 1.6
10 Jun 2026 11:45 AM 8.49 12,980 1.6
10 Jun 2026 11:30 AM 8.50 13,011 1.6
10 Jun 2026 11:15 AM 8.51 13,043 1.6
10 Jun 2026 11:00 AM 8.52 13,075 1.6
10 Jun 2026 10:45 AM 8.53 13,106 1.6
10 Jun 2026 10:30 AM 8.54 13,138 1.6
10 Jun 2026 10:15 AM 8.57 13,233 1.6
10 Jun 2026 10:00 AM 8.66 13,519 1.6
10 Jun 2026 09:45 AM 8.71 13,679 1.7
10 Jun 2026 09:30 AM 8.69 13,615 1.6
10 Jun 2026 09:15 AM 8.68 13,583 1.6
10 Jun 2026 09:00 AM 8.66 13,519 1.6
10 Jun 2026 08:45 AM 8.64 13,456 1.6
10 Jun 2026 08:30 AM 8.62 13,392 1.6
10 Jun 2026 08:15 AM 8.60 13,328 1.6
10 Jun 2026 08:00 AM 8.58 13,265 1.6
10 Jun 2026 07:45 AM 8.56 13,201 1.6
10 Jun 2026 07:30 AM 8.52 13,075 1.6
10 Jun 2026 07:15 AM 8.49 12,980 1.6
10 Jun 2026 07:00 AM 8.44 12,822 1.5
10 Jun 2026 06:45 AM 8.37 12,602 1.5
10 Jun 2026 06:30 AM 8.28 12,321 1.5
10 Jun 2026 06:15 AM 8.21 12,104 1.5
10 Jun 2026 06:00 AM 8.18 12,011 1.5
10 Jun 2026 05:45 AM 8.16 11,949 1.4
10 Jun 2026 05:30 AM 8.12 11,825 1.4
10 Jun 2026 05:15 AM 8.06 11,641 1.4
10 Jun 2026 05:00 AM 8.05 11,610 1.4
10 Jun 2026 04:45 AM 8.03 11,548 1.4
10 Jun 2026 04:30 AM 8.01 11,487 1.4
10 Jun 2026 04:15 AM 7.99 11,426 1.4
10 Jun 2026 04:00 AM 7.97 11,365 1.4
10 Jun 2026 03:45 AM 7.95 11,304 1.4
10 Jun 2026 03:30 AM 7.93 11,243 1.4
10 Jun 2026 03:15 AM 7.91 11,182 1.4
10 Jun 2026 03:00 AM 7.89 11,121 1.3
10 Jun 2026 02:45 AM 7.87 11,061 1.3
10 Jun 2026 02:30 AM 7.84 10,970 1.3
10 Jun 2026 02:15 AM 7.80 10,849 1.3
10 Jun 2026 02:00 AM 7.76 10,728 1.3
10 Jun 2026 01:45 AM 7.70 10,554 1.3
10 Jun 2026 01:30 AM 7.60 10,267 1.2
Report Generated June 11, 2026 09:20 pm