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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 (EST) Pool
(ft)
 Storage
(%)		 Storage
(ac-ft)		 Tailwater
(ft)		 Flow
(cfs)		 Inflow
(cfs)		 Precip
(in)		 Air Temp
(F)
07 Dec 2025 10:30 AM 17.09 0.5 3,043 2.52 225 178 10.11 34.1
07 Dec 2025 10:15 AM 17.09 0.5 3,043 2.52 225 178 10.11 31.7
07 Dec 2025 10:00 AM 17.09 0.5 3,043 2.52 225 168 10.11 30.5
07 Dec 2025 09:45 AM 17.09 0.5 3,043 2.52 225 168 10.11 29.5
07 Dec 2025 09:30 AM 17.10 0.5 3,048 2.52 225 177 10.11 28.5
07 Dec 2025 09:15 AM 17.10 0.5 3,048 2.53 227 176 10.11 27.1
07 Dec 2025 09:00 AM 17.10 0.5 3,048 2.52 225 176 10.11 26.1
07 Dec 2025 08:45 AM 17.11 0.5 3,053 2.52 225 175 10.11 24.7
07 Dec 2025 08:30 AM 17.11 0.5 3,053 2.53 227 174 10.11 23.5
07 Dec 2025 08:15 AM 17.11 0.5 3,053 2.53 227 173 10.11 22.5
07 Dec 2025 08:00 AM 17.11 0.5 3,053 2.52 225 172 10.11 21.8
07 Dec 2025 07:45 AM 17.12 0.5 3,058 2.53 227 181 10.11 21.0
07 Dec 2025 07:30 AM 17.12 0.5 3,058 2.54 229 179 10.11 20.4
07 Dec 2025 07:15 AM 17.12 0.5 3,058 2.53 227 179 10.11 20.0
07 Dec 2025 07:00 AM 17.12 0.5 3,058 2.53 227 178 10.11 19.8
07 Dec 2025 06:45 AM 17.13 0.5 3,062 2.53 227 187 10.11 19.7
07 Dec 2025 06:30 AM 17.13 0.5 3,062 2.54 229 177 10.11 20.1
07 Dec 2025 06:15 AM 17.13 0.5 3,062 2.53 227 176 10.11 19.7
07 Dec 2025 06:00 AM 17.13 0.5 3,062 2.53 227 175 10.11 19.9
07 Dec 2025 05:45 AM 17.14 0.5 3,067 2.52 225 184 10.11 19.6
07 Dec 2025 05:30 AM 17.14 0.5 3,067 2.53 227 175 10.11 19.5
07 Dec 2025 05:15 AM 17.14 0.5 3,067 2.52 225 175 10.11 20.2
07 Dec 2025 05:00 AM 17.14 0.5 3,067 2.52 225 176 10.11 20.1
07 Dec 2025 04:45 AM 17.14 0.5 3,067 2.52 225 176 10.11 20.4
07 Dec 2025 04:30 AM 17.14 0.5 3,067 2.51 223 177 10.11 20.5
07 Dec 2025 04:15 AM 17.14 0.5 3,067 2.50 221 178 10.11 21.0
07 Dec 2025 04:00 AM 17.15 0.5 3,072 2.50 221 188 10.11 21.3
07 Dec 2025 03:45 AM 17.15 0.5 3,072 2.48 217 190 10.11 21.8
07 Dec 2025 03:30 AM 17.15 0.5 3,072 2.47 215 191 10.11 21.5
07 Dec 2025 03:15 AM 17.15 0.5 3,072 2.46 213 183 10.11 21.6
07 Dec 2025 03:00 AM 17.15 0.5 3,072 2.45 211 185 10.11 21.8
07 Dec 2025 02:45 AM 17.16 0.5 3,077 2.42 205 196 10.11 21.9
07 Dec 2025 02:30 AM 17.16 0.5 3,077 2.41 203 198 10.11 22.1
07 Dec 2025 02:15 AM 17.16 0.5 3,077 2.39 199 200 10.11 22.3
07 Dec 2025 02:00 AM 17.16 0.5 3,077 2.36 193 202 10.11 21.9
07 Dec 2025 01:45 AM 17.16 0.5 3,077 2.36 193 195 10.11 22.3
07 Dec 2025 01:30 AM 17.16 0.5 3,077       10.11 22.9
07 Dec 2025 01:15 AM 17.16 0.5 3,077       10.11 22.9
07 Dec 2025 01:00 AM 17.16 0.5 3,077       10.11 22.9
07 Dec 2025 12:45 AM 17.16 0.5 3,077       10.11 23.3
07 Dec 2025 12:30 AM 17.17 0.5 3,082 2.38 197 209 10.11 23.6
07 Dec 2025 12:15 AM 17.17 0.5 3,082 2.43 207 212 10.11 24.1
07 Dec 2025 12:00 AM 17.17 0.5 3,082 2.50 221 214 10.11 24.3
06 Dec 2025 11:45 PM 17.17 0.5 3,082 2.55 231 206 10.11 24.6
06 Dec 2025 11:30 PM 17.18 0.5 3,086 2.59 240 217 10.11 24.5
06 Dec 2025 11:15 PM 17.18 0.5 3,086 2.58 237 217 10.11 25.0
06 Dec 2025 11:00 PM 17.18 0.5 3,086 2.57 235 218 10.11 24.7
06 Dec 2025 10:45 PM 17.18 0.5 3,086 2.58 237 219 10.11 25.6
06 Dec 2025 10:30 PM 17.18 0.5 3,086 2.58 237 210 10.11 26.1
06 Dec 2025 10:15 PM 17.18 0.5 3,086 2.60 242 211 10.11 25.8
06 Dec 2025 10:00 PM 17.18 0.5 3,086 2.61 244 211 10.11 25.9
06 Dec 2025 09:45 PM 17.18 0.5 3,086 2.62 246 212 10.11 25.9
06 Dec 2025 09:30 PM 17.18 0.5 3,086 2.63 248 213 10.11 26.2
06 Dec 2025 09:15 PM 17.19 0.5 3,091 2.62 246 223 10.11 26.6
06 Dec 2025 09:00 PM 17.19 0.5 3,091 2.62 246 223 10.11 26.8
06 Dec 2025 08:45 PM 17.19 0.5 3,091 2.62 246 214 10.11 27.2
06 Dec 2025 08:30 PM 17.19 0.5 3,091 2.60 242 215 10.11 27.5
06 Dec 2025 08:15 PM 17.19 0.5 3,091 2.60 242 215 10.11 27.8
06 Dec 2025 08:00 PM 17.19 0.5 3,091 2.59 240 216 10.11 28.2
06 Dec 2025 07:45 PM 17.20 0.5 3,096 2.60 242 226 10.11 28.0
06 Dec 2025 07:30 PM 17.20 0.5 3,096 2.61 244 226 10.11 28.5
06 Dec 2025 07:15 PM 17.20 0.5 3,096 2.62 246 217 10.11 29.0
06 Dec 2025 07:00 PM 17.20 0.5 3,096 2.64 250 217 10.11 29.2
06 Dec 2025 06:45 PM 17.20 0.5 3,096 2.66 254 217 10.11 29.2
06 Dec 2025 06:30 PM 17.20 0.5 3,096 2.67 257 217 10.11 29.9
06 Dec 2025 06:15 PM 17.20 0.5 3,096 2.69 261 217 10.11 30.1
06 Dec 2025 06:00 PM 17.20 0.5 3,096 2.68 259 207 10.11 30.7
06 Dec 2025 05:45 PM 17.21 0.5 3,101 2.68 259 216 10.11 31.3
06 Dec 2025 05:30 PM 17.21 0.5 3,101 2.67 257 216 10.11 31.8
06 Dec 2025 05:15 PM 17.21 0.5 3,101 2.67 257 216 10.11 33.3
06 Dec 2025 05:00 PM 17.21 0.5 3,101 2.66 254 215 10.11 34.0
06 Dec 2025 04:45 PM 17.21 0.5 3,101 2.66 254 205 10.11 35.8
06 Dec 2025 04:30 PM 17.22 0.5 3,106 2.65 252 215 10.11 37.5
06 Dec 2025 04:15 PM 17.22 0.5 3,106 2.67 257 215 10.11 39.9
06 Dec 2025 04:00 PM 17.22 0.5 3,106 2.68 259 214 10.11 41.3
06 Dec 2025 03:45 PM 17.22 0.5 3,106 2.69 261 214 10.11 42.2
06 Dec 2025 03:30 PM 17.22 0.5 3,106 2.70 263 204 10.11 42.7
06 Dec 2025 03:15 PM 17.22 0.5 3,106 2.69 261 203 10.11 43.5
06 Dec 2025 03:00 PM 17.22 0.5 3,106 2.68 259 203 10.11 43.9
06 Dec 2025 02:45 PM 17.23 0.5 3,110 2.66 254 213 10.11 44.7
06 Dec 2025 02:30 PM 17.23 0.5 3,110 2.65 252 213 10.11 45.4
06 Dec 2025 02:15 PM 17.23 0.5 3,110 2.66 254 204 10.11 44.1
06 Dec 2025 02:00 PM 17.23 0.5 3,110 2.65 252 204 10.11 42.3
06 Dec 2025 01:45 PM 17.23 0.5 3,110 2.64 250 204 10.11 41.2
06 Dec 2025 01:30 PM 17.23 0.5 3,110 2.65 252 204 10.11 40.0
06 Dec 2025 01:15 PM 17.24 0.5 3,115 2.65 252 214 10.11 38.7
06 Dec 2025 01:00 PM 17.24 0.5 3,115 2.65 252 205 10.11 37.3
06 Dec 2025 12:45 PM 17.24 0.5 3,115 2.65 252 205 10.11 36.2
06 Dec 2025 12:30 PM 17.24 0.5 3,115 2.64 250 205 10.11 35.7
06 Dec 2025 12:15 PM 17.24 0.5 3,115 2.65 252 206 10.11 35.4
06 Dec 2025 12:00 PM 17.25 0.6 3,120 2.64 250 216 10.11 34.7
06 Dec 2025 11:45 AM 17.25 0.6 3,120 2.65 252 216 10.11 33.8
06 Dec 2025 11:30 AM 17.25 0.6 3,120 2.63 248 207 10.11 33.9
06 Dec 2025 11:15 AM 17.25 0.6 3,120 2.64 250 207 10.11 33.5
06 Dec 2025 11:00 AM 17.25 0.6 3,120 2.63 248 207 10.10 33.5
06 Dec 2025 10:45 AM 17.26 0.6 3,125 2.64 250 218 10.10 33.2
06 Dec 2025 10:30 AM 17.26 0.6 3,125 2.63 248 218 10.10 32.9
06 Dec 2025 10:15 AM 17.26 0.6 3,125 2.63 248 219 10.10 32.6
06 Dec 2025 10:00 AM 17.26 0.6 3,125 2.63 248 210 10.10 32.4
06 Dec 2025 09:45 AM 17.26 0.6 3,125 2.64 250 211 10.10 32.0
06 Dec 2025 09:30 AM 17.27 0.6 3,130 2.66 254 221 10.10 32.1
06 Dec 2025 09:15 AM 17.27 0.6 3,130 2.67 257 222 10.10 31.3
06 Dec 2025 09:00 AM 17.27 0.6 3,130 2.67 257 212 10.10 30.7
06 Dec 2025 08:45 AM 17.27 0.6 3,130 2.68 259 213 10.10 30.2
06 Dec 2025 08:30 AM 17.27 0.6 3,130 2.68 259 213 10.10 29.7
06 Dec 2025 08:15 AM 17.28 0.6 3,134 2.67 257 223 10.10 29.5
06 Dec 2025 08:00 AM 17.28 0.6 3,134 2.68 259 223 10.10 29.3
06 Dec 2025 07:45 AM 17.28 0.6 3,134 2.67 257 223 10.10 29.1
06 Dec 2025 07:30 AM 17.28 0.6 3,134 2.67 257 224 10.10 28.9
06 Dec 2025 07:15 AM 17.28 0.6 3,134 2.68 259 215 10.10 28.9
06 Dec 2025 07:00 AM 17.29 0.6 3,139 2.68 259 225 10.10 28.8
06 Dec 2025 06:45 AM 17.29 0.6 3,139 2.69 261 226 10.10 28.4
06 Dec 2025 06:30 AM 17.29 0.6 3,139 2.68 259 226 10.10 28.5
06 Dec 2025 06:15 AM 17.29 0.6 3,139 2.68 259 227 10.10 28.4
06 Dec 2025 06:00 AM 17.29 0.6 3,139 2.68 259 218 10.10 28.3
06 Dec 2025 05:45 AM 17.29 0.6 3,139 2.68 259 219 10.10 28.2
06 Dec 2025 05:30 AM 17.30 0.6 3,144 2.68 259 229 10.10 28.4
06 Dec 2025 05:15 AM 17.30 0.6 3,144 2.68 259 229 10.10 28.1
06 Dec 2025 05:00 AM 17.30 0.6 3,144 2.70 263 229 10.10 27.9
06 Dec 2025 04:45 AM 17.30 0.6 3,144 2.69 261 230 10.10 27.8
06 Dec 2025 04:30 AM 17.30 0.6 3,144 2.71 265 230 10.10 27.8
06 Dec 2025 04:15 AM 17.30 0.6 3,144 2.72 268 231 10.10 27.6
06 Dec 2025 04:00 AM 17.31 0.6 3,149 2.73 270 231 10.10 27.9
06 Dec 2025 03:45 AM 17.31 0.6 3,149 2.72 268 232 10.10 28.3
06 Dec 2025 03:30 AM 17.31 0.6 3,149 2.72 268 232 10.10 28.1
06 Dec 2025 03:15 AM 17.31 0.6 3,149 2.70 263 233 10.10 28.0
06 Dec 2025 03:00 AM 17.32 0.6 3,154 2.70 263 234 10.10 28.1
06 Dec 2025 02:45 AM 17.32 0.6 3,154 2.68 259 235 10.10 28.0
06 Dec 2025 02:30 AM 17.32 0.6 3,154 2.70 263 235 10.10 28.1
06 Dec 2025 02:15 AM 17.32 0.6 3,154 2.70 263 236 10.10 27.9
06 Dec 2025 02:00 AM 17.32 0.6 3,154 2.71 265 237 10.10 28.0
06 Dec 2025 01:45 AM 17.32 0.6 3,154 2.73 270 237 10.10 27.9
06 Dec 2025 01:30 AM 17.32 0.6 3,154 2.75 274 238 10.10 27.8
06 Dec 2025 01:15 AM 17.33 0.6 3,158 2.75 274 238 10.10 27.7
06 Dec 2025 01:00 AM 17.33 0.6 3,158 2.75 274 239 10.10 27.8
06 Dec 2025 12:45 AM 17.33 0.6 3,158 2.76 276 240 10.10 27.5
06 Dec 2025 12:30 AM 17.33 0.6 3,158 2.76 276 240 10.10 27.5
06 Dec 2025 12:15 AM 17.33 0.6 3,158 2.75 274 232 10.10 27.4
06 Dec 2025 12:00 AM 17.34 0.6 3,163 2.74 272 242 10.10 27.3
05 Dec 2025 11:45 PM 17.34 0.6 3,163 2.72 268 243 10.10 27.4
05 Dec 2025 11:30 PM 17.34 0.6 3,163 2.72 268 244 10.10 27.2
05 Dec 2025 11:15 PM 17.34 0.6 3,163 2.73 270 245 10.10 27.2
05 Dec 2025 11:00 PM 17.34 0.6 3,163 2.74 272 236 10.10 27.2
05 Dec 2025 10:45 PM 17.34 0.6 3,163 2.74 272 237 10.10 26.9
05 Dec 2025 10:30 PM 17.34 0.6 3,163 2.77 279 238 10.10 27.1
05 Dec 2025 10:15 PM 17.34 0.6 3,163 2.77 279 239 10.10 26.9
05 Dec 2025 10:00 PM 17.35 0.6 3,168 2.78 281 240 10.10 27.0
05 Dec 2025 09:45 PM 17.35 0.6 3,168 2.80 285 241 10.10 27.0
05 Dec 2025 09:30 PM 17.35 0.6 3,168 2.79 283 241 10.10 27.0
05 Dec 2025 09:15 PM 17.35 0.6 3,168 2.79 283 232 10.10 27.0
05 Dec 2025 09:00 PM 17.36 0.6 3,173 2.78 281 242 10.10 27.0
05 Dec 2025 08:45 PM 17.36 0.6 3,173 2.76 276 243 10.10 27.1
05 Dec 2025 08:30 PM 17.36 0.6 3,173 2.77 279 244 10.10 27.3
05 Dec 2025 08:15 PM 17.36 0.6 3,173 2.77 279 235 10.10 27.4
05 Dec 2025 08:00 PM 17.36 0.6 3,173 2.78 281 235 10.10 27.2
05 Dec 2025 07:45 PM 17.36 0.6 3,173 2.78 281 236 10.10 27.4
05 Dec 2025 07:30 PM 17.36 0.6 3,173 2.80 285 237 10.10 27.5
05 Dec 2025 07:15 PM 17.37 0.6 3,178 2.82 290 237 10.10 27.3
05 Dec 2025 07:00 PM 17.37 0.6 3,178 2.84 294 238 10.10 27.6
05 Dec 2025 06:45 PM 17.37 0.6 3,178 2.83 292 238 10.10 27.3
05 Dec 2025 06:30 PM 17.37 0.6 3,178 2.85 297 239 10.10 27.4
05 Dec 2025 06:15 PM 17.38 0.6 3,182 2.84 294 239 10.10 27.5
05 Dec 2025 06:00 PM 17.38 0.6 3,182 2.83 292 240 10.10 27.4
05 Dec 2025 05:45 PM 17.38 0.6 3,182 2.83 292 240 10.10 27.2
05 Dec 2025 05:30 PM 17.38 0.6 3,182 2.83 292 241 10.10 27.0
05 Dec 2025 05:15 PM 17.38 0.6 3,182 2.83 292 232 10.10 26.9
05 Dec 2025 05:00 PM 17.39 0.6 3,187 2.84 294 243 10.10 27.0
05 Dec 2025 04:45 PM 17.39 0.6 3,187 2.86 299 234 10.10 26.9
Report Generated 07 Dec 2025 11:39 AM