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Hinckley Test

Hinckley Reservoir Water Levels

Information on this page provides current data and operating parameters related to ongoing management of Hinckley Reservoir water levels.
Previous Data

Date Hinckley Reservoir Elevation (ft) Hinckley Reservoir Comparison to Elevation Trigger (ft)¹ Hinckley Reservoir Comparison to Normal Elevation (ft)² Hinckley Reservoir Discharge (cfs)³ SCHEDULED RELEASE (cfs)⁴ Hinckley Reservoir Inflow (cfs) Hinckley Reservoir 30-day Running Average Inflow (cfs)⁵ Wilmurt Streamgage Flow (cfs)⁶ Black Creek Flow (cfs) Mohawk Valley Water Authority Withdrawal (cfs)
06-17 1218.2 -1 -5 546 540 315 713 193 28 27.2
06-16 1218.5 -0.9 -4.8 545 540 314 728 229 40 26.8
06-15 1218.7 -0.8 -4.6 518 513 374 749 247 41 27.8
06-14 1218.8 -0.9 -4.5 559 560 326 777 146 20 27.4
06-13 1219 -0.8 -4.3 561 560 236 819 154 22 27
06-12 1219.4 -0.8 -4.2 561 560 265 865 169 24 28.4
06-11 1219.6 -0.6 -4 608 607 279 880 178 25 27.5
06-10 1219.9 -0.5 -3.8 602 600 333 888 186 26 30.5
06-09 1220.2 -0.4 -3.6 604 600 272 900 210 27 29.1
06-08 1220.4 -0.4 -3.4 648 648 406 915 229 31 28.8
06-07 1220.7 -0.2 -3.2 810 810 288 930 204 30 27.2
06-06 1221.1 0 -2.9 808 810 313 955 206 29 28.4
06-05 1221.5 0.2 -2.6 809 810 373 987 228 32 29.3
06-04 1221.9 0.5 -2.2 871 866 336 1000 259 36 30.3
06-03 1222.3 0.7 -2 832 915 421 1008 298 43 28.3
06-02 1222.7 0.9 -1.5 917 915 439 1018 349 52 28.2
06-01 1223.1 1.1 -1.1 800 798 512 1030 408 62 27.5
05-31 1223.3 1.3 -0.9 623 620 622 1050 471 71 28.3
05-30 1223.3 1.3 -0.9 620 620 716 1086 561 90 27.1
05-29 1223.3 1.3 -0.9 622 620 783 1131 614 116 27.8
05-28 1223.2 1.2 -1.1 634 620 988 1123 839 166 29.9
05-27 1222.9 0.9 -1.4 592 590 1677 1102 1250 272 30.4
05-26 1222.1 0.1 -2.2 605 590 3278 1060 2170 666 26.8
05-25 1220 -2 -4.4 620 617 4122 966 3060 742 27.6
05-24 1217.2 -4.8 -7.2 673 670 936 846 644 145 24.6
05-23 1217 -5 -7.4 674 670 418 835 286 50 27.7
05-22 1217.2 -4.8 -7.2 675 670 476 826 322 58 28.9
05-21 1217.4 -4.5 -7 703 704 444 837 377 72 26.7
05-20 1217.7 -4.3 -6.8 771 758 566 854 427 84 31.9
05-19 1217.9 -4.1 -6.6 766 755 567 872 488 101 28.4
05-18 1218.1 -4 -6.4 748 743 780 898 584 131 29.2
05-17 1218.1 -3.9 -6.4 804 800 953 917 713 174 29.5
05-16 1218 -4 -6.5 800 800 1212 945 904 238 28.4
05-15 1217.7 -4.3 -6.9 800 800 1585 941 1120 301 26.9
05-14 1217 -5 -7.6 862 800 1608 963 1220 325 28.6
05-13 1216.4 -5.6 -8.1 931 940 707 968 594 136 26
05-12 1216.6 -5.4 -7.8 934 940 537 992 489 79 29.4
05-11 1217 -5 -7.4 979 940 694 1032 569 95 28.5
05-10 1217.3 -4.7 -7 1052 1050 707 1073 646 111 27.8
05-09 1217.6 -4.4 -6.6 1054 1050 853 1104 719 N/A 26.9
05-08 1217.8 -4.2 -6.5 1055 1050 1028 1143 926 131 28.7
05-07 1217.8 -4.2 -6.5 1115 1050 1293 1204 1150 179 27.9
05-06 1217.7 -4.3 -6.7 1225 1230 760 1297 660 141 28.8
05-05 1218.1 -3.9 -6.3 1232 1230 584 1477 512 106 27.4
05-04 1218.7 -3.3 -5.7 1108 1230 723 1683 600 129 28
05-03 1219 -3 -5.4 1306 1294 797 1867 691 162 28.5
05-02 1219.5 -2.6 -4.9 1310 1294 1101 2038 861 219 27
05-01 1219.7 -2.4 -4.5 1309 1294 1703 2315 1190 364 27.7
04-30 1219.4 1219.4 -4.6 1335 0 2050 2834 1400 598 27.9
04-29 1218.8 1218.8 -5 1404 1400 562 2996 351 78 29.6
04-28 1219.5 1219.5 -4.1 1412 1400 344 3034 352 56 28.4
04-27 1220.4 1220.4 -3 1385 1400 424 3077 386 62 28.9
04-26 1221.2 1221.2 -2 1384 1401 471 3157 426 68 28.3
04-25 1221.9 1221.9 -0.9 1391 1401 498 3259 468 74 27.8
04-24 1222.6 1222.6 0.2 1398 1401 622 3285 526 86 28.4
04-23 1223.2 1223.2 1.4 898 1406 146 3306 611 102 29.6
04-22 1223.8 1223.8 2.8 1426 1425 797 3350 708 121 29.1
04-21 1224.3 1224.3 4 1431 1425 963 3392 842 146 28.5
04-20 1224.7 1224.7 4.9 1425 1415 1120 3414 1040 191 27.9
04-19 1224.9 1224.9 5.7 1403 1395 1330 3441 1190 194 29.3
04-18 1225 1225 6.2 1424 1395 1351 3442 1390 150 28.8
04-17 1225.1 1225.1 6.9 1599 1395 1792 3457 1710 181 28.7
04-16 1224.9 1225 7.7 1630 1455 1089 3497 1650 197 29.8
04-15 1225.4 1225.4 9 1703 1575 2264 3600 1980 208 27.8
04-14 1225 1224.9 9.3 1571 1575 1731 3573 1640 216 30.3
04-13 1224.9 1224.8 9.9 1659 1654 1453 3567 1250 208 28.8
04-12 1225 1225 10.8 1883 1811 1710 3610 1460 246 29.6
04-11 1225.2 1225.2 11.7 1879 1811 1939 3716 1690 289 27.3
04-10 1225.2 1225.1 12.3 2043 1811 1634 3907 1200 230 29.6
04-09 1225.5 1225.5 13.2 2614 1811 2034 3970 1190 246 29.5
04-08 1225.9 1225.9 14.2 3513 1811 2860 3991 1420 296 28.4
04-07 1226.4 1226.4 15.5 4931 1811 4067 3987 2000 540 28.6
04-06 1227 1227 16.9 6634 1811 6178 3905 3260 951 27.9
04-05 1227.4 1227.4 18.2 6388 1803 6761 3723 4070 982 29.5
04-04 1227.1 1227.1 18.9 6195 1803 6222 3511 3620 N/A 28.8
04-03 1227.1 1227.1 20 6947 1803 5932 3313 2940 972 28.2
04-02 1227.9 1227.9 21.7 11807 1803 9425 3123 4190 1430 29.2
04-01 1229.5 1229.5 24.2 14081 1803 17258 2817 10100 3150 28.2
03-31 1227.4 1227.4 23 2893 1803 6931 2250 5570 1580 31.8
03-30 1224.4 1224.5 21 1972 1974 1698 2028 1130 310 29.8
03-29 1224.7 1224.7 22 1404 1392 1625 1979 1330 N/A 29.8
03-28 1224.5 1224.5 22.7 1399 1392 2829 1933 1910 777 29.7
03-27 1223.5 1173.5 -27.5 1393 1392 3526 1848 2660 1060 29.7
03-26 1221.9 1221.9 21.3 1392 1392 1288 1741 1080 332 29.7
03-25 1222 1222 21.8 1395 1392 1229 1706 1040 265 30
03-24 1222.1 1222.1 22.1 1400 1392 1486 1675 1250 347 32.3
03-23 1222.1 1222.1 22.2 1409 1392 2061 1634 N/A 524 28
03-22 1221.6 1221.6 21.9 1406 1401 1616 1575 1360 375 30.2
03-21 1221.4 1221.4 21.8 1402 1401 1924 1532 1560 440 30.2
03-20 1221 1221.1 21.7 1401 1401 1362 1477 1210 275 30
03-19 1221.1 1221.1 21.6 1404 1416 1792 1440 1490 346 30.8
03-18 1220.8 1220.8 21.5 1430 1404 3010 1389 2170 680 30.5
03-17 1219.5 1219.5 20.4 1407 1404 4157 1297 3260 931 28.6
03-16 1217.3 1217.3 18.2 1249 1236 1474 1168 1170 308 30.8
03-15 1217.1 1217.2 18.2 904 900 1558 1128 1280 365 30.4
03-14 1216.6 1216.6 17.8 908 900 2726 1085 1850 589 28.6
03-13 1215 1215 16.3 922 900 4878 1000 3060 1070 32.3
03-12 1211.4 1211.4 12.8 945 900 7686 844 5670 1330 30.1
03-11 1204.4 1204.4 5.8 916 900 3511 594 2870 797 33.2
03-10 1201.4 1201.4 2.7 719 705 2683 483 1940 706 30.9
03-09 1199 1199 0.3 523 513 2718 401 2090 752 34.3
03-08 1196 1196 -2.8 526 520 1626 317 -999999 573 30.2
03-07 1194.4 1194.4 -4.3 520 520 702 271 -999999 -999999 29.8
03-06 1194.2 1194.1 -4.4 376 373 399 257 -999999 -999999 32.9
03-05 1194.2 1194.2 -4.3 305 300 281 245 -999999 -999999 N/A
03-04 1194.2 1194.2 -4.6 306 300 247 263 -999999 -999999 31.5
03-03 1194.4 1194.4 -4.7 306 300 249 267 -999999 -999999 33.4
03-02 1194.5 1194.5 -4.9 305 300 232 269 -999999 -999999 31.9
03-01 1194.6 1194.6 -5 305 300 280 272 -999999 -999999 35
02-28 1194.7 1194.7 -5.1 305 300 232 272 -999999 -999999 31.2
02-27 1194.8 1194.8 -5.1 305 300 247 245 -999999 -999999 33.8
02-26 1195 1194.9 -5.2 305 300 280 79 -999999 -999999 32.6
02-25 1195 1195 -5.4 305 390 296 98 -999999 -999999 34.8
02-24 1195.1 1195.1 -5.5 303 300 262 117 -999999 -999999 32.3
02-23 1195.2 1195.2 -5.5 301 300 276 139 -999999 -999999 35.2
02-22 1195.3 1195.3 -5.5 301 393 276 162 -999999 -999999 34.7
02-21 1195.3 1195.3 -5.8 302 300 276 182 -999999 -999999 32.3
02-20 1195.4 1195.4 -6.1 301 300 341 203 -999999 -999999 34.3
02-19 1195.4 1195.4 -6.4 302 300 260 223 -999999 -999999 34.7
02-18 1195.5 1195.5 -6.5 303 400 261 243 -999999 -999999 34.9
02-17 1195.6 1195.6 -6.5 300 300 257 263 -999999 -999999 33.7
02-16 1195.7 1195.6 -6.8 297 300 254 283 -999999 -999999 36.3
02-15 1195.8 1195.8 -7 298 300 289 315 -999999 -999999 32.5
02-14 1195.8 1195.8 -7.3 299 300 272 372 -999999 -999999 33.8
02-13 1195.9 1195.9 -7.6 297 300 254 424 -999999 -999999 34
02-12 1196 1196 -7.8 661 668 193 428 -999999 -999999 35.1
02-11 1196.7 1196.7 -7.5 728 731 193 460 -999999 -999999 34.9
02-10 1197.5 1197.5 -7.1 726 731 177 480 -999999 -999999 35.3
02-09 1198.3 1198.2 -6.8 748 745 204 501 -999999 -999999 35.9
02-08 1199 1199 -6.4 766 761 209 521 -999999 -999999 34.3
02-07 1199.8 1199.8 -6 759 761 208 542 -999999 -999999 36.5
02-06 1200.5 1200.5 -5.6 756 761 252 561 -999999 -999999 34.1
02-05 1201.2 1201.1 -5.4 773 773 258 580 -999999 -999999 34.4
02-04 1201.8 1201.9 -4.8 726 716 60 599 -999999 -999999 35.8
02-03 1202.7 1202.7 -4.2 787 788 811 621 -999999 -999999 34.3
02-02 1202.7 1202.7 -4.4 800 801 365 618 -999999 -999999 33.5
02-01 1203.2 1203.2 -4.2 815 818 295 631 -999999 -999999 30.6
01-31 1203.8 1203.8 -3.8 816 818 322 689 -999999 -999999 33.8
01-30 1204.4 1204.4 -3.5 816 818 304 728 -999999 -999999 31.3
01-29 1205 1205 -3.1 842 841 -578 867 -999999 -999999 33.4
01-28 1206.6 1206.6 -1.7 866 870 -4751 913 -999999 -999999 33.6
01-27 1212.2 1212.3 3.9 865 870 862 1094 -999999 -999999 30.8
01-26 1212.3 1212.3 3.8 878 878 875 1089 -999999 -999999 30.6
01-25 1212.3 1212.3 3.7 882 889 905 1082 -999999 -999999 31.9
01-24 1212.3 1212.2 3.5 881 889 956 1076 -999999 -999999 30.8
01-23 1212.2 1212.2 3.6 881 889 904 1066 N/A -999999 31.1
01-22 1212.2 1212.2 3.6 886 889 883 1059 425 -999999 30.9
01-21 1212.3 1212.3 3.4 888 889 937 1049 378 138 32.8
01-20 1212.2 1212.2 3.1 891 889 888 1045 408 164 30.9
01-19 1212.3 1212.2 2.9 870 875 857 1054 463 194 28.7
01-18 1162.3 1212.2 2.8 863 859 850 1070 557 228 33.6
01-17 1212.2 1212.2 2.5 858 859 1218 1062 609 257 30.9
01-16 1211.9 1211.9 2 856 859 1978 1032 647 307 30.6
01-15 1210.9 1210.9 0.8 822 819 1843 976 802 376 30
01-14 1209.9 1209.9 -0.5 777 769 378 926 820 307 31.3
01-13 1210.3 1210.3 -0.4 770 769 1140 923 N/A 421 31.1
01-12 1210 1209.9 -1 780 774 803 897 1460 726 30.1
01-11 1210 1210 -1.2 787 780 810 882 1820 822 31.5
01-10 1210 1209.9 -1.6 781 780 804 866 889 502 28.8
01-09 1210 1209.9 -1.8 776 780 824 852 431 218 33.2
01-08 1209.9 1209.9 -2 789 783 788 833 432 202 32.8
01-07 1210 1210 -2 791 788 839 816 451 211 29.8
01-06 1209.9 1210 -2.2 786 788 809 799 482 186 33.7
01-05 1209.9 1210 -2.3 810 753 740 785 497 195 29.8
01-04 1210 1209.9 -2.4 692 709 715 772 556 215 33.5
01-03 1210 1210 -2.3 697 709 745 757 648 247 31.8
01-02 1209.9 1209.9 -2.4 697 709 2044 749 760 269 32
01-01 1208.6 1208.6 -3.7 706 707 1477 675 966 362 31.6

1 The Elevation Trigger is invoked when Hinckley Reservoir elevation falls below the 10% historical low level. The elevation trigger is 1222 feet in May, 1198 feet October 15 to December 31 and linearly interpolated from 1222 feet on May 31 and 1198 feet on October 15.

2 "Normal" Hinckley Reservoir elevations for a given date are based upon the average of 59 years of daily Hinckley Reservoir elevation data (1942-1979 and 1987-2007).

3 cfs is the abbreviation for cubic feet per second.

4 The 1920 Operating Diagram establishes the rate of release of water from Hinckley Reservoir based upon varying reservoir levels throughout the year.

5 The Inflow Trigger is invoked when the 30-day running average Hinckley Reservoir inflow is below 300 cfs.

6 The Wilmurt plus Black Creek streamflow represents 80% of the Hinckley watershed area.

Hinckley Reservoir Water Levels

Information on this page provides current data and operating parameters related to ongoing management of Hinckley Reservoir water levels.
Previous Data

Date Hinckley Reservoir Elevation (ft) Hinckley Reservoir Comparison to Elevation Trigger (ft)¹ Hinckley Reservoir Comparison to Normal Elevation (ft)² Hinckley Reservoir Discharge (cfs)³ SCHEDULED RELEASE (cfs)⁴ Hinckley Reservoir Inflow (cfs) Hinckley Reservoir 30-day Running Average Inflow (cfs)⁵ Wilmurt Streamgage Flow (cfs)⁶ Black Creek Flow (cfs) Mohawk Valley Water Authority Withdrawal (cfs)
06-17 1218.2 -1 -5 546 540 315 713 193 28 27.2
06-16 1218.5 -0.9 -4.8 545 540 314 728 229 40 26.8
06-15 1218.7 -0.8 -4.6 518 513 374 749 247 41 27.8
06-14 1218.8 -0.9 -4.5 559 560 326 777 146 20 27.4
06-13 1219 -0.8 -4.3 561 560 236 819 154 22 27
06-12 1219.4 -0.8 -4.2 561 560 265 865 169 24 28.4
06-11 1219.6 -0.6 -4 608 607 279 880 178 25 27.5
06-10 1219.9 -0.5 -3.8 602 600 333 888 186 26 30.5
06-09 1220.2 -0.4 -3.6 604 600 272 900 210 27 29.1
06-08 1220.4 -0.4 -3.4 648 648 406 915 229 31 28.8
06-07 1220.7 -0.2 -3.2 810 810 288 930 204 30 27.2
06-06 1221.1 0 -2.9 808 810 313 955 206 29 28.4
06-05 1221.5 0.2 -2.6 809 810 373 987 228 32 29.3
06-04 1221.9 0.5 -2.2 871 866 336 1000 259 36 30.3
06-03 1222.3 0.7 -2 832 915 421 1008 298 43 28.3
06-02 1222.7 0.9 -1.5 917 915 439 1018 349 52 28.2
06-01 1223.1 1.1 -1.1 800 798 512 1030 408 62 27.5
05-31 1223.3 1.3 -0.9 623 620 622 1050 471 71 28.3
05-30 1223.3 1.3 -0.9 620 620 716 1086 561 90 27.1
05-29 1223.3 1.3 -0.9 622 620 783 1131 614 116 27.8
05-28 1223.2 1.2 -1.1 634 620 988 1123 839 166 29.9
05-27 1222.9 0.9 -1.4 592 590 1677 1102 1250 272 30.4
05-26 1222.1 0.1 -2.2 605 590 3278 1060 2170 666 26.8
05-25 1220 -2 -4.4 620 617 4122 966 3060 742 27.6
05-24 1217.2 -4.8 -7.2 673 670 936 846 644 145 24.6
05-23 1217 -5 -7.4 674 670 418 835 286 50 27.7
05-22 1217.2 -4.8 -7.2 675 670 476 826 322 58 28.9
05-21 1217.4 -4.5 -7 703 704 444 837 377 72 26.7
05-20 1217.7 -4.3 -6.8 771 758 566 854 427 84 31.9
05-19 1217.9 -4.1 -6.6 766 755 567 872 488 101 28.4
05-18 1218.1 -4 -6.4 748 743 780 898 584 131 29.2
05-17 1218.1 -3.9 -6.4 804 800 953 917 713 174 29.5
05-16 1218 -4 -6.5 800 800 1212 945 904 238 28.4
05-15 1217.7 -4.3 -6.9 800 800 1585 941 1120 301 26.9
05-14 1217 -5 -7.6 862 800 1608 963 1220 325 28.6
05-13 1216.4 -5.6 -8.1 931 940 707 968 594 136 26
05-12 1216.6 -5.4 -7.8 934 940 537 992 489 79 29.4
05-11 1217 -5 -7.4 979 940 694 1032 569 95 28.5
05-10 1217.3 -4.7 -7 1052 1050 707 1073 646 111 27.8
05-09 1217.6 -4.4 -6.6 1054 1050 853 1104 719 N/A 26.9
05-08 1217.8 -4.2 -6.5 1055 1050 1028 1143 926 131 28.7
05-07 1217.8 -4.2 -6.5 1115 1050 1293 1204 1150 179 27.9
05-06 1217.7 -4.3 -6.7 1225 1230 760 1297 660 141 28.8
05-05 1218.1 -3.9 -6.3 1232 1230 584 1477 512 106 27.4
05-04 1218.7 -3.3 -5.7 1108 1230 723 1683 600 129 28
05-03 1219 -3 -5.4 1306 1294 797 1867 691 162 28.5
05-02 1219.5 -2.6 -4.9 1310 1294 1101 2038 861 219 27
05-01 1219.7 -2.4 -4.5 1309 1294 1703 2315 1190 364 27.7
04-30 1219.4 1219.4 -4.6 1335 0 2050 2834 1400 598 27.9
04-29 1218.8 1218.8 -5 1404 1400 562 2996 351 78 29.6
04-28 1219.5 1219.5 -4.1 1412 1400 344 3034 352 56 28.4
04-27 1220.4 1220.4 -3 1385 1400 424 3077 386 62 28.9
04-26 1221.2 1221.2 -2 1384 1401 471 3157 426 68 28.3
04-25 1221.9 1221.9 -0.9 1391 1401 498 3259 468 74 27.8
04-24 1222.6 1222.6 0.2 1398 1401 622 3285 526 86 28.4
04-23 1223.2 1223.2 1.4 898 1406 146 3306 611 102 29.6
04-22 1223.8 1223.8 2.8 1426 1425 797 3350 708 121 29.1
04-21 1224.3 1224.3 4 1431 1425 963 3392 842 146 28.5
04-20 1224.7 1224.7 4.9 1425 1415 1120 3414 1040 191 27.9
04-19 1224.9 1224.9 5.7 1403 1395 1330 3441 1190 194 29.3
04-18 1225 1225 6.2 1424 1395 1351 3442 1390 150 28.8
04-17 1225.1 1225.1 6.9 1599 1395 1792 3457 1710 181 28.7
04-16 1224.9 1225 7.7 1630 1455 1089 3497 1650 197 29.8
04-15 1225.4 1225.4 9 1703 1575 2264 3600 1980 208 27.8
04-14 1225 1224.9 9.3 1571 1575 1731 3573 1640 216 30.3
04-13 1224.9 1224.8 9.9 1659 1654 1453 3567 1250 208 28.8
04-12 1225 1225 10.8 1883 1811 1710 3610 1460 246 29.6
04-11 1225.2 1225.2 11.7 1879 1811 1939 3716 1690 289 27.3
04-10 1225.2 1225.1 12.3 2043 1811 1634 3907 1200 230 29.6
04-09 1225.5 1225.5 13.2 2614 1811 2034 3970 1190 246 29.5
04-08 1225.9 1225.9 14.2 3513 1811 2860 3991 1420 296 28.4
04-07 1226.4 1226.4 15.5 4931 1811 4067 3987 2000 540 28.6
04-06 1227 1227 16.9 6634 1811 6178 3905 3260 951 27.9
04-05 1227.4 1227.4 18.2 6388 1803 6761 3723 4070 982 29.5
04-04 1227.1 1227.1 18.9 6195 1803 6222 3511 3620 N/A 28.8
04-03 1227.1 1227.1 20 6947 1803 5932 3313 2940 972 28.2
04-02 1227.9 1227.9 21.7 11807 1803 9425 3123 4190 1430 29.2
04-01 1229.5 1229.5 24.2 14081 1803 17258 2817 10100 3150 28.2
03-31 1227.4 1227.4 23 2893 1803 6931 2250 5570 1580 31.8
03-30 1224.4 1224.5 21 1972 1974 1698 2028 1130 310 29.8
03-29 1224.7 1224.7 22 1404 1392 1625 1979 1330 N/A 29.8
03-28 1224.5 1224.5 22.7 1399 1392 2829 1933 1910 777 29.7
03-27 1223.5 1173.5 -27.5 1393 1392 3526 1848 2660 1060 29.7
03-26 1221.9 1221.9 21.3 1392 1392 1288 1741 1080 332 29.7
03-25 1222 1222 21.8 1395 1392 1229 1706 1040 265 30
03-24 1222.1 1222.1 22.1 1400 1392 1486 1675 1250 347 32.3
03-23 1222.1 1222.1 22.2 1409 1392 2061 1634 N/A 524 28
03-22 1221.6 1221.6 21.9 1406 1401 1616 1575 1360 375 30.2
03-21 1221.4 1221.4 21.8 1402 1401 1924 1532 1560 440 30.2
03-20 1221 1221.1 21.7 1401 1401 1362 1477 1210 275 30
03-19 1221.1 1221.1 21.6 1404 1416 1792 1440 1490 346 30.8
03-18 1220.8 1220.8 21.5 1430 1404 3010 1389 2170 680 30.5
03-17 1219.5 1219.5 20.4 1407 1404 4157 1297 3260 931 28.6
03-16 1217.3 1217.3 18.2 1249 1236 1474 1168 1170 308 30.8
03-15 1217.1 1217.2 18.2 904 900 1558 1128 1280 365 30.4
03-14 1216.6 1216.6 17.8 908 900 2726 1085 1850 589 28.6
03-13 1215 1215 16.3 922 900 4878 1000 3060 1070 32.3
03-12 1211.4 1211.4 12.8 945 900 7686 844 5670 1330 30.1
03-11 1204.4 1204.4 5.8 916 900 3511 594 2870 797 33.2
03-10 1201.4 1201.4 2.7 719 705 2683 483 1940 706 30.9
03-09 1199 1199 0.3 523 513 2718 401 2090 752 34.3
03-08 1196 1196 -2.8 526 520 1626 317 -999999 573 30.2
03-07 1194.4 1194.4 -4.3 520 520 702 271 -999999 -999999 29.8
03-06 1194.2 1194.1 -4.4 376 373 399 257 -999999 -999999 32.9
03-05 1194.2 1194.2 -4.3 305 300 281 245 -999999 -999999 N/A
03-04 1194.2 1194.2 -4.6 306 300 247 263 -999999 -999999 31.5
03-03 1194.4 1194.4 -4.7 306 300 249 267 -999999 -999999 33.4
03-02 1194.5 1194.5 -4.9 305 300 232 269 -999999 -999999 31.9
03-01 1194.6 1194.6 -5 305 300 280 272 -999999 -999999 35
02-28 1194.7 1194.7 -5.1 305 300 232 272 -999999 -999999 31.2
02-27 1194.8 1194.8 -5.1 305 300 247 245 -999999 -999999 33.8
02-26 1195 1194.9 -5.2 305 300 280 79 -999999 -999999 32.6
02-25 1195 1195 -5.4 305 390 296 98 -999999 -999999 34.8
02-24 1195.1 1195.1 -5.5 303 300 262 117 -999999 -999999 32.3
02-23 1195.2 1195.2 -5.5 301 300 276 139 -999999 -999999 35.2
02-22 1195.3 1195.3 -5.5 301 393 276 162 -999999 -999999 34.7
02-21 1195.3 1195.3 -5.8 302 300 276 182 -999999 -999999 32.3
02-20 1195.4 1195.4 -6.1 301 300 341 203 -999999 -999999 34.3
02-19 1195.4 1195.4 -6.4 302 300 260 223 -999999 -999999 34.7
02-18 1195.5 1195.5 -6.5 303 400 261 243 -999999 -999999 34.9
02-17 1195.6 1195.6 -6.5 300 300 257 263 -999999 -999999 33.7
02-16 1195.7 1195.6 -6.8 297 300 254 283 -999999 -999999 36.3
02-15 1195.8 1195.8 -7 298 300 289 315 -999999 -999999 32.5
02-14 1195.8 1195.8 -7.3 299 300 272 372 -999999 -999999 33.8
02-13 1195.9 1195.9 -7.6 297 300 254 424 -999999 -999999 34
02-12 1196 1196 -7.8 661 668 193 428 -999999 -999999 35.1
02-11 1196.7 1196.7 -7.5 728 731 193 460 -999999 -999999 34.9
02-10 1197.5 1197.5 -7.1 726 731 177 480 -999999 -999999 35.3
02-09 1198.3 1198.2 -6.8 748 745 204 501 -999999 -999999 35.9
02-08 1199 1199 -6.4 766 761 209 521 -999999 -999999 34.3
02-07 1199.8 1199.8 -6 759 761 208 542 -999999 -999999 36.5
02-06 1200.5 1200.5 -5.6 756 761 252 561 -999999 -999999 34.1
02-05 1201.2 1201.1 -5.4 773 773 258 580 -999999 -999999 34.4
02-04 1201.8 1201.9 -4.8 726 716 60 599 -999999 -999999 35.8
02-03 1202.7 1202.7 -4.2 787 788 811 621 -999999 -999999 34.3
02-02 1202.7 1202.7 -4.4 800 801 365 618 -999999 -999999 33.5
02-01 1203.2 1203.2 -4.2 815 818 295 631 -999999 -999999 30.6
01-31 1203.8 1203.8 -3.8 816 818 322 689 -999999 -999999 33.8
01-30 1204.4 1204.4 -3.5 816 818 304 728 -999999 -999999 31.3
01-29 1205 1205 -3.1 842 841 -578 867 -999999 -999999 33.4
01-28 1206.6 1206.6 -1.7 866 870 -4751 913 -999999 -999999 33.6
01-27 1212.2 1212.3 3.9 865 870 862 1094 -999999 -999999 30.8
01-26 1212.3 1212.3 3.8 878 878 875 1089 -999999 -999999 30.6
01-25 1212.3 1212.3 3.7 882 889 905 1082 -999999 -999999 31.9
01-24 1212.3 1212.2 3.5 881 889 956 1076 -999999 -999999 30.8
01-23 1212.2 1212.2 3.6 881 889 904 1066 N/A -999999 31.1
01-22 1212.2 1212.2 3.6 886 889 883 1059 425 -999999 30.9
01-21 1212.3 1212.3 3.4 888 889 937 1049 378 138 32.8
01-20 1212.2 1212.2 3.1 891 889 888 1045 408 164 30.9
01-19 1212.3 1212.2 2.9 870 875 857 1054 463 194 28.7
01-18 1162.3 1212.2 2.8 863 859 850 1070 557 228 33.6
01-17 1212.2 1212.2 2.5 858 859 1218 1062 609 257 30.9
01-16 1211.9 1211.9 2 856 859 1978 1032 647 307 30.6
01-15 1210.9 1210.9 0.8 822 819 1843 976 802 376 30
01-14 1209.9 1209.9 -0.5 777 769 378 926 820 307 31.3
01-13 1210.3 1210.3 -0.4 770 769 1140 923 N/A 421 31.1
01-12 1210 1209.9 -1 780 774 803 897 1460 726 30.1
01-11 1210 1210 -1.2 787 780 810 882 1820 822 31.5
01-10 1210 1209.9 -1.6 781 780 804 866 889 502 28.8
01-09 1210 1209.9 -1.8 776 780 824 852 431 218 33.2
01-08 1209.9 1209.9 -2 789 783 788 833 432 202 32.8
01-07 1210 1210 -2 791 788 839 816 451 211 29.8
01-06 1209.9 1210 -2.2 786 788 809 799 482 186 33.7
01-05 1209.9 1210 -2.3 810 753 740 785 497 195 29.8
01-04 1210 1209.9 -2.4 692 709 715 772 556 215 33.5
01-03 1210 1210 -2.3 697 709 745 757 648 247 31.8
01-02 1209.9 1209.9 -2.4 697 709 2044 749 760 269 32
01-01 1208.6 1208.6 -3.7 706 707 1477 675 966 362 31.6

1 The Elevation Trigger is invoked when Hinckley Reservoir elevation falls below the 10% historical low level. The elevation trigger is 1222 feet in May, 1198 feet October 15 to December 31 and linearly interpolated from 1222 feet on May 31 and 1198 feet on October 15.

2 "Normal" Hinckley Reservoir elevations for a given date are based upon the average of 59 years of daily Hinckley Reservoir elevation data (1942-1979 and 1987-2007).

3 cfs is the abbreviation for cubic feet per second.

4 The 1920 Operating Diagram establishes the rate of release of water from Hinckley Reservoir based upon varying reservoir levels throughout the year.

5 The Inflow Trigger is invoked when the 30-day running average Hinckley Reservoir inflow is below 300 cfs.

6 The Wilmurt plus Black Creek streamflow represents 80% of the Hinckley watershed area.