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Mansfield Hollow Dam, Natchaug River
 Drainage Area: 159 sq. miles 
 Channel Capacity: 2,900 cfs 
 Storage at Spillway Crest: 5.8 in / 52,000 ac-ft  
 Normal Pool: 16.5 Feet (Summer), 15 Feet (Winter), 18.5 Feet (Spring) 
Date (EDT) Pool
(ft)
 Storage
(%)		 Storage
(ac-ft)		 Tailwater
(ft)		 Flow
(cfs)		 Inflow
(cfs)		 Precip
(in)		 Air Temp
(F)
09 Aug 2026 09:30 AM 18.12 1.1 3,540 1.79 90 100 33.11 81.3
09 Aug 2026 09:15 AM 18.12 1.1 3,540 1.78 89 100 33.11 79.2
09 Aug 2026 09:00 AM 18.12 1.1 3,540 1.78 89 100 33.11 76.8
09 Aug 2026 08:45 AM 18.12 1.1 3,540 1.78 89 100 33.11 75.8
09 Aug 2026 08:30 AM 18.12 1.1 3,540 1.79 90 100 33.11 74.8
09 Aug 2026 08:15 AM 18.12 1.1 3,540 1.78 89 100 33.11 73.3
09 Aug 2026 08:00 AM 18.12 1.1 3,540 1.79 90 100 33.11 72.2
09 Aug 2026 07:45 AM 18.12 1.1 3,540 1.78 89 100 33.11 70.9
09 Aug 2026 07:30 AM 18.12 1.1 3,540 1.78 89 100 33.11 70.6
09 Aug 2026 07:15 AM 18.12 1.1 3,540 1.79 90 100 33.11 70.2
09 Aug 2026 07:00 AM 18.12 1.1 3,540 1.79 90 100 33.11 69.8
09 Aug 2026 06:45 AM 18.12 1.1 3,540 1.79 90 100 33.11 69.3
09 Aug 2026 06:30 AM 18.12 1.1 3,540 1.79 90 100 33.11 68.7
09 Aug 2026 06:15 AM 18.12 1.1 3,540 1.79 90 100 33.11 68.9
09 Aug 2026 06:00 AM 18.12 1.1 3,540 1.79 90 100 33.11 68.8
09 Aug 2026 05:45 AM 18.12 1.1 3,540 1.78 89 100 33.11 68.9
09 Aug 2026 05:30 AM 18.12 1.1 3,540 1.79 90 100 33.11 68.8
09 Aug 2026 05:15 AM 18.12 1.1 3,540 1.79 90 100 33.11 68.8
09 Aug 2026 05:00 AM 18.12 1.1 3,540 1.79 90 100 33.11 69.3
09 Aug 2026 04:45 AM 18.12 1.1 3,540 1.78 89 100 33.11 69.5
09 Aug 2026 04:30 AM 18.11 1.1 3,535 1.78 89 90 33.11 69.5
09 Aug 2026 04:15 AM 18.11 1.1 3,535 1.78 89 90 33.11 69.8
09 Aug 2026 04:00 AM 18.11 1.1 3,535 1.79 90 90 33.11 70.0
09 Aug 2026 03:45 AM 18.11 1.1 3,535 1.78 89 90 33.11 69.5
09 Aug 2026 03:30 AM 18.11 1.1 3,535 1.79 90 90 33.11 70.0
09 Aug 2026 03:15 AM 18.11 1.1 3,535 1.78 89 100 33.11 70.1
09 Aug 2026 03:00 AM 18.11 1.1 3,535 1.78 89 100 33.11 70.1
09 Aug 2026 02:45 AM 18.11 1.1 3,535 1.78 89 100 33.11 70.2
09 Aug 2026 02:30 AM 18.11 1.1 3,535 1.78 89 100 33.11 70.3
09 Aug 2026 02:15 AM 18.11 1.1 3,535 1.78 89 100 33.11 69.7
09 Aug 2026 02:00 AM 18.11 1.1 3,535 1.79 90 100 33.11 69.9
09 Aug 2026 01:45 AM 18.11 1.1 3,535 1.78 89 100 33.11 70.2
09 Aug 2026 01:30 AM 18.11 1.1 3,535 1.78 89 111 33.11 70.3
09 Aug 2026 01:15 AM 18.11 1.1 3,535 1.78 89 111 33.11 70.5
09 Aug 2026 01:00 AM 18.11 1.1 3,535 1.78 89 111 33.11 70.6
09 Aug 2026 12:45 AM 18.11 1.1 3,535 1.78 89 111 33.11 71.0
09 Aug 2026 12:30 AM 18.11 1.1 3,535 1.78 89 111 33.11 70.8
09 Aug 2026 12:15 AM 18.11 1.1 3,535 1.79 90 111 33.11 71.1
09 Aug 2026 12:00 AM 18.11 1.1 3,535 1.79 90 111 33.11 71.0
08 Aug 2026 11:45 PM 18.11 1.1 3,535 1.79 90 111 33.11 71.0
08 Aug 2026 11:30 PM 18.11 1.1 3,535 1.79 90 111 33.11 71.5
08 Aug 2026 11:15 PM 18.11 1.1 3,535 1.78 89 111 33.11 71.8
08 Aug 2026 11:00 PM 18.11 1.1 3,535 1.79 90 111 33.11 72.0
08 Aug 2026 10:45 PM 18.11 1.1 3,535 1.79 90 111 33.11 71.7
08 Aug 2026 10:30 PM 18.11 1.1 3,535 1.78 89 111 33.11 72.2
08 Aug 2026 10:15 PM 18.11 1.1 3,535 1.79 90 111 33.11 72.0
08 Aug 2026 10:00 PM 18.11 1.1 3,535 1.79 90 111 33.11 72.2
08 Aug 2026 09:45 PM 18.11 1.1 3,535 1.79 90 111 33.11 72.5
08 Aug 2026 09:30 PM 18.11 1.1 3,535 1.80 92 111 33.11 72.5
08 Aug 2026 09:15 PM 18.10 1.1 3,530 1.80 92 100 33.11 72.5
08 Aug 2026 09:00 PM 18.10 1.1 3,530 1.80 92 100 33.09 72.9
08 Aug 2026 08:45 PM 18.10 1.1 3,530 1.79 90 100 33.09 72.9
08 Aug 2026 08:30 PM 18.10 1.1 3,530 1.80 92 100 33.09 73.4
08 Aug 2026 08:15 PM 18.10 1.1 3,530 1.80 92 100 33.09 73.6
08 Aug 2026 08:00 PM 18.10 1.1 3,530 1.80 92 100 33.09 73.7
08 Aug 2026 07:45 PM 18.10 1.1 3,530 1.79 90 100 33.09 73.5
08 Aug 2026 07:30 PM 18.09 1.1 3,525 1.79 90 90 33.09 74.5
08 Aug 2026 07:15 PM 18.09 1.1 3,525 1.79 90 90 32.91 75.3
08 Aug 2026 07:00 PM 18.09 1.1 3,525 1.79 90 90 32.83 82.5
08 Aug 2026 06:45 PM 18.09 1.1 3,525 1.79 90 90 32.83 85.7
08 Aug 2026 06:30 PM 18.09 1.1 3,525 1.80 92 90 32.83 86.2
08 Aug 2026 06:15 PM 18.09 1.1 3,525 1.79 90 90 32.83 87.1
08 Aug 2026 06:00 PM 18.09 1.1 3,525 1.79 90 90 32.83 88.2
08 Aug 2026 05:45 PM 18.09 1.1 3,525 1.79 90 90 32.83 86.9
08 Aug 2026 05:30 PM 18.09 1.1 3,525 1.78 89 90 32.83 87.0
08 Aug 2026 05:15 PM 18.09 1.1 3,525 1.79 90 90 32.83 87.6
08 Aug 2026 05:00 PM 18.09 1.1 3,525 1.78 89 90 32.83 88.1
08 Aug 2026 04:45 PM 18.09 1.1 3,525 1.79 90 90 32.83 88.9
08 Aug 2026 04:30 PM 18.09 1.1 3,525 1.77 88 90 32.83 90.3
08 Aug 2026 04:15 PM 18.09 1.1 3,525 1.78 89 90 32.83 92.0
08 Aug 2026 04:00 PM 18.09 1.1 3,525 1.78 89 90 32.83 91.2
08 Aug 2026 03:45 PM 18.09 1.1 3,525 1.78 89 91 32.83 91.9
08 Aug 2026 03:30 PM 18.09 1.1 3,525 1.79 90 91 32.83 91.9
08 Aug 2026 03:15 PM 18.09 1.1 3,525 1.78 89 91 32.83 91.5
08 Aug 2026 03:00 PM 18.09 1.1 3,525 1.79 90 91 32.83 91.7
08 Aug 2026 02:45 PM 18.09 1.1 3,525 1.79 90 91 32.83 91.5
08 Aug 2026 02:30 PM 18.09 1.1 3,525 1.79 90 91 32.83 90.6
08 Aug 2026 02:15 PM 18.09 1.1 3,525 1.79 90 91 32.83 90.2
08 Aug 2026 02:00 PM 18.09 1.1 3,525 1.79 90 91 32.83 90.5
08 Aug 2026 01:45 PM 18.09 1.1 3,525 1.79 90 91 32.83 90.6
08 Aug 2026 01:30 PM 18.09 1.1 3,525 1.79 90 91 32.83 90.7
08 Aug 2026 01:15 PM 18.09 1.1 3,525 1.79 90 91 32.83 89.6
08 Aug 2026 01:00 PM 18.09 1.1 3,525 1.79 90 91 32.83 89.3
08 Aug 2026 12:45 PM 18.09 1.1 3,525 1.80 92 90 32.83 90.0
08 Aug 2026 12:30 PM 18.09 1.1 3,525 1.79 90 90 32.83 89.2
08 Aug 2026 12:15 PM 18.09 1.1 3,525 1.79 90 90 32.83 89.1
08 Aug 2026 12:00 PM 18.09 1.1 3,525 1.79 90 90 32.83 88.9
08 Aug 2026 11:45 AM 18.09 1.1 3,525 1.79 90 100 32.83 87.5
08 Aug 2026 11:30 AM 18.09 1.1 3,525 1.79 90 100 32.83 87.5
08 Aug 2026 11:15 AM 18.09 1.1 3,525 1.80 92 100 32.83 86.4
08 Aug 2026 11:00 AM 18.09 1.1 3,525 1.79 90 100 32.83 84.5
08 Aug 2026 10:45 AM 18.09 1.1 3,525 1.79 90 100 32.83 83.7
08 Aug 2026 10:30 AM 18.09 1.1 3,525 1.79 90 100 32.83 82.9
08 Aug 2026 10:15 AM 18.09 1.1 3,525 1.80 92 100 32.83 82.6
08 Aug 2026 10:00 AM 18.09 1.1 3,525 1.79 90 100 32.83 81.3
08 Aug 2026 09:45 AM 18.09 1.1 3,525 1.78 89 100 32.83 80.5
08 Aug 2026 09:30 AM 18.09 1.1 3,525 1.79 90 101 32.83 79.4
08 Aug 2026 09:15 AM 18.09 1.1 3,525 1.79 90 101 32.83 78.4
08 Aug 2026 09:00 AM 18.09 1.1 3,525 1.79 90 101 32.83 77.9
08 Aug 2026 08:45 AM 18.09 1.1 3,525 1.78 89 101 32.83 77.7
08 Aug 2026 08:30 AM 18.09 1.1 3,525 1.79 90 101 32.83 76.8
08 Aug 2026 08:15 AM 18.09 1.1 3,525 1.79 90 101 32.83 76.2
08 Aug 2026 08:00 AM 18.09 1.1 3,525 1.79 90 101 32.83 74.9
08 Aug 2026 07:45 AM 18.09 1.1 3,525 1.79 90 101 32.83 73.4
08 Aug 2026 07:30 AM 18.09 1.1 3,525 1.79 90 101 32.83 73.1
08 Aug 2026 07:15 AM 18.09 1.1 3,525 1.79 90 101 32.83 72.3
08 Aug 2026 07:00 AM 18.09 1.1 3,525 1.78 89 101 32.83 72.3
08 Aug 2026 06:45 AM 18.09 1.1 3,525 1.78 89 101 32.83 71.9
08 Aug 2026 06:30 AM 18.09 1.1 3,525 1.78 89 101 32.83 71.4
08 Aug 2026 06:15 AM 18.09 1.1 3,525 1.79 90 112 32.83 71.4
08 Aug 2026 06:00 AM 18.09 1.1 3,525 1.79 90 112 32.83 71.5
08 Aug 2026 05:45 AM 18.08 1.1 3,520 1.79 90 102 32.83 71.5
08 Aug 2026 05:30 AM 18.08 1.1 3,520 1.79 90 102 32.83 71.5
08 Aug 2026 05:15 AM 18.08 1.1 3,520 1.79 90 102 32.83 71.7
08 Aug 2026 05:00 AM 18.08 1.1 3,520 1.79 90 102 32.83 71.5
08 Aug 2026 04:45 AM 18.08 1.1 3,520 1.79 90 102 32.83 71.9
08 Aug 2026 04:30 AM 18.08 1.1 3,520 1.80 92 102 32.83 72.2
08 Aug 2026 04:15 AM 18.08 1.1 3,520 1.80 92 112 32.83 72.2
08 Aug 2026 04:00 AM 18.08 1.1 3,520 1.80 92 112 32.83 72.2
08 Aug 2026 03:45 AM 18.08 1.1 3,520 1.80 92 112 32.83 72.2
08 Aug 2026 03:30 AM 18.08 1.1 3,520 1.80 92 111 32.82 72.7
08 Aug 2026 03:15 AM 18.08 1.1 3,520 1.80 92 111 32.82 72.5
08 Aug 2026 03:00 AM 18.08 1.1 3,520 1.79 90 110 32.82 72.6
08 Aug 2026 02:45 AM 18.08 1.1 3,520 1.80 92 110 32.82 72.8
08 Aug 2026 02:30 AM 18.08 1.1 3,520 1.79 90 110 32.82 72.7
08 Aug 2026 02:15 AM 18.08 1.1 3,520 1.80 92 109 32.82 72.7
08 Aug 2026 02:00 AM 18.08 1.1 3,520 1.80 92 109 32.82 73.0
08 Aug 2026 01:45 AM 18.08 1.1 3,520 1.81 93 108 32.82 73.1
08 Aug 2026 01:30 AM 18.08 1.1 3,520 1.81 93 107 32.82 73.4
08 Aug 2026 01:15 AM 18.08 1.1 3,520 1.81 93 107 32.82 74.1
08 Aug 2026 01:00 AM 18.08 1.1 3,520 1.80 92 106 32.82 74.5
08 Aug 2026 12:45 AM 18.08 1.1 3,520 1.80 92 106 32.82 74.4
08 Aug 2026 12:30 AM 18.08 1.1 3,520 1.81 93 106 32.82 74.1
08 Aug 2026 12:15 AM 18.07 1.1 3,515 1.80 92 95 32.82 74.4
08 Aug 2026 12:00 AM 18.07 1.1 3,515 1.81 93 95 32.82 74.4
07 Aug 2026 11:45 PM 18.07 1.1 3,515 1.81 93 95 32.82 74.1
07 Aug 2026 11:30 PM 18.07 1.1 3,515 1.79 90 95 32.81 74.9
07 Aug 2026 11:15 PM 18.07 1.1 3,515 1.80 92 96 32.81 75.0
07 Aug 2026 11:00 PM 18.07 1.1 3,515 1.79 90 97 32.79 75.1
07 Aug 2026 10:45 PM 18.07 1.1 3,515 1.79 90 99 32.79 75.5
07 Aug 2026 10:30 PM 18.07 1.1 3,515 1.78 89 102 32.78 75.5
07 Aug 2026 10:15 PM 18.06 1.1 3,510 1.77 88 95 32.76 75.5
07 Aug 2026 10:00 PM 18.06 1.1 3,510 1.76 86 99 32.74 75.9
07 Aug 2026 09:45 PM 18.06 1.1 3,510 1.75 85 103 32.73 76.2
07 Aug 2026 09:30 PM 18.06 1.1 3,510 1.73 82 107 32.71 77.3
07 Aug 2026 09:15 PM 18.06 1.1 3,510 1.73 82 112 32.64 83.8
07 Aug 2026 09:00 PM 18.06 1.1 3,510 1.72 81 116 32.64 84.8
07 Aug 2026 08:45 PM 18.06 1.1 3,510 1.72 81 111 32.64 85.3
07 Aug 2026 08:30 PM 18.06 1.1 3,510 1.71 79 116 32.64 85.4
07 Aug 2026 08:15 PM 18.06 1.1 3,510 1.70 78 120 32.64 85.4
07 Aug 2026 08:00 PM 18.06 1.1 3,510 1.71 79 115 32.64 86.1
07 Aug 2026 07:45 PM 18.06 1.1 3,510 1.71 79 120 32.64 86.4
07 Aug 2026 07:30 PM 18.06 1.1 3,510 1.71 79 115 32.64 87.2
07 Aug 2026 07:15 PM 18.06 1.1 3,510 1.72 81 119 32.64 87.9
07 Aug 2026 07:00 PM 18.06 1.1 3,510 1.72 81 124 32.64 88.8
07 Aug 2026 06:45 PM 18.06 1.1 3,510 1.73 82 119 32.64 90.2
07 Aug 2026 06:30 PM 18.06 1.1 3,510 1.74 84 123 32.64 92.6
07 Aug 2026 06:15 PM 18.06 1.1 3,510 1.77 88 118 32.64 95.1
07 Aug 2026 06:00 PM 18.06 1.1 3,510 1.81 93 122 32.64 95.7
07 Aug 2026 05:45 PM 18.06 1.1 3,510 1.87 102 126 32.64 96.3
07 Aug 2026 05:30 PM 18.06 1.1 3,510 1.94 112 120 32.64 96.1
07 Aug 2026 05:15 PM 18.06 1.1 3,510 2.02 122 123 32.64 96.4
07 Aug 2026 05:00 PM 18.06 1.1 3,510 2.12 135 116 32.64 96.2
07 Aug 2026 04:45 PM 18.06 1.1 3,510 2.20 148 118 32.64 96.0
07 Aug 2026 04:30 PM 18.06 1.1 3,510 2.30 166 120 32.64 96.2
07 Aug 2026 04:15 PM 18.06 1.1 3,510 2.38 181 110 32.64 95.6
07 Aug 2026 04:00 PM 18.06 1.1 3,510 2.41 187 111 32.64 95.8
07 Aug 2026 03:45 PM 18.06 1.1 3,510 2.43 192 110 32.64 95.2
07 Aug 2026 03:30 PM 18.06 1.1 3,510 2.43 192 100 32.64 96.4
07 Aug 2026 03:15 PM 18.06 1.1 3,510 2.43 192 100 32.64 95.4
07 Aug 2026 03:00 PM 18.06 1.1 3,510 2.43 192 100 32.64 94.4
07 Aug 2026 02:45 PM 18.07 1.1 3,515 2.43 192 100 32.64 96.1
07 Aug 2026 02:30 PM 18.07 1.1 3,515 2.44 194 100 32.64 95.5
07 Aug 2026 02:15 PM 18.07 1.1 3,515 2.44 194 100 32.64 94.3
Report Generated 09 Aug 2026 10:12 AM