SLCESGCO COLORADO BASIN RIVER FORECASTCENTER NATIONAL WEATHER SERVICE SALT LAKE CITY UTAH April 16, 2021 Seasonal outlook for maximum flows: YDLC2L_F Comments: This outlook is based on flows from the ESP model states as of April 16 and includes the 7 days of deterministic quantitative precipitation forecast (QPF). Weather: A break in the weather is expected over the weekend before another storm system arrives early next week. Forecast precipitation for the next week is expected to be ~1.0 inch. Temperatures are forecast to be below normal through the middle part of next week. The 8-14 day outlook for the last week in April is indicating increased chances for below normal precipitation and above normal temperatures. Flows: Flows are exptected to decrease over the next week. # ESP Forecast Information # # Analysis Period: 2021-04-16 - 2021-07-31 (MST) # Forecast Parameters: River Discharge # Forecast Interval: 2021-04-16 - 2021-07-31 (MST) # Forecast Point: YDLC2L_F Daily Peak -- Seasonal Maximum # # YDLC2L_F # Exceedance Prob. 0.90 0.75 0.50 0.25 0.10 Units # ------------------------------------------------------------------ # 4569 5421 7285 9249 11320 CFSD Number of Days to Peak from: 2021-04-16 # # YDLC2L_F # Exceedance Prob. 0.90 0.75 0.50 0.25 0.10 Units # ------------------------------------------------------------------ # 38 46 49 54 59 DAYS Number of Days Above: 6000 cfs # # YDLC2L_F # Exceedance Prob. 0.90 0.75 0.50 0.25 0.10 Units # ------------------------------------------------------------------ # 0 0 4 14 26 DAYS Number of Days Above: 8000 cfs # # YDLC2L_F # Exceedance Prob. 0.90 0.75 0.50 0.25 0.10 Units # ------------------------------------------------------------------ # 0 0 0 4 12 DAYS Number of Days Above: 10000 cfs # # YDLC2L_F # Exceedance Prob. 0.90 0.75 0.50 0.25 0.10 Units # ------------------------------------------------------------------ # 0 0 0 0 4 DAYS 1-week Seasonal Peak Flow Max Highlight: # Exceedance Prob. 0.90 0.75 0.50 0.25 0.10 Units # -------------------------------------------------------------------------------- # Interval: 2021-05-31 - 2021-06-06 4002 4598 6446 8272 10194 CFSD # Interval: 2021-06-01 - 2021-06-07 3944 4598 6583 8272 10641 CFSD # Interval: 2021-06-02 - 2021-06-08 3623 4598 6828 8272 10848 CFSD # Interval: 2021-06-03 - 2021-06-09 3623 4374 6828 9249 11094 CFSD # Interval: 2021-06-04 - 2021-06-10 3479 4489 6664 9249 11120 CFSD 2-week Seasonal Peak Flow Max Highlight: # Exceedance Prob. 0.90 0.75 0.50 0.25 0.10 Units # -------------------------------------------------------------------------------- # Interval: 2021-05-25 - 2021-06-07 4376 4832 6664 8272 10641 CFSD # Interval: 2021-05-26 - 2021-06-08 4442 5263 6904 8272 10848 CFSD # Interval: 2021-05-27 - 2021-06-09 4415 5263 6988 9249 11094 CFSD # Interval: 2021-05-28 - 2021-06-10 4470 5079 6988 9249 11120 CFSD # Interval: 2021-05-29 - 2021-06-11 4473 4953 6988 9249 11120 CFSD 1-week Seasonal Peak Flow: # ESP Forecast Information # # Analysis Period: 2021-04-16 - 2021-07-31 (MST) # Forecast Parameters: River River Flow (Mean Daily) - (CFSD) # Forecast Interval: 1 week # Forecast Point: YDLC2L_F # # YDLC2L_F # Exceedance Prob. 0.90 0.75 0.50 0.25 0.10 Units # -------------------------------------------------------------------------------- # Interval: 2021-04-16 - 2021-04-22 1311 1311 1311 1311 1311 CFSD # Interval: 2021-04-17 - 2021-04-23 1311 1311 1311 1311 1311 CFSD # Interval: 2021-04-18 - 2021-04-24 1311 1311 1311 1311 1311 CFSD # Interval: 2021-04-19 - 2021-04-25 1218 1218 1218 1218 1218 CFSD # Interval: 2021-04-20 - 2021-04-26 1154 1166 1211 1360 1516 CFSD # Interval: 2021-04-21 - 2021-04-27 1274 1353 1497 1767 2055 CFSD # Interval: 2021-04-22 - 2021-04-28 1511 1634 1810 2044 2487 CFSD # Interval: 2021-04-23 - 2021-04-29 1611 1704 1895 2304 2726 CFSD # Interval: 2021-04-24 - 2021-04-30 1663 1782 2068 2414 2844 CFSD # Interval: 2021-04-25 - 2021-05-01 1707 1873 2112 2602 3252 CFSD # Interval: 2021-04-26 - 2021-05-02 1749 1918 2210 2912 3608 CFSD # Interval: 2021-04-27 - 2021-05-03 1882 2042 2341 3000 3876 CFSD # Interval: 2021-04-28 - 2021-05-04 1886 2075 2341 3017 3762 CFSD # Interval: 2021-04-29 - 2021-05-05 1823 2094 2475 3286 4052 CFSD # Interval: 2021-04-30 - 2021-05-06 1752 1983 2667 3533 4275 CFSD # Interval: 2021-05-01 - 2021-05-07 1835 1978 2867 3656 4333 CFSD # Interval: 2021-05-02 - 2021-05-08 1855 2188 3040 3679 4711 CFSD # Interval: 2021-05-03 - 2021-05-09 1874 2188 3237 3688 4711 CFSD # Interval: 2021-05-04 - 2021-05-10 2226 2447 2867 3700 4711 CFSD # Interval: 2021-05-05 - 2021-05-11 2321 2480 3237 3778 4711 CFSD # Interval: 2021-05-06 - 2021-05-12 2425 2692 3261 3688 4855 CFSD # Interval: 2021-05-07 - 2021-05-13 2488 2867 3417 4014 5091 CFSD # Interval: 2021-05-08 - 2021-05-14 2538 2762 3376 4014 4792 CFSD # Interval: 2021-05-09 - 2021-05-15 2488 2881 3417 4313 4698 CFSD # Interval: 2021-05-10 - 2021-05-16 2607 3020 3501 4088 5222 CFSD # Interval: 2021-05-11 - 2021-05-17 2491 3040 3843 4313 5222 CFSD # Interval: 2021-05-12 - 2021-05-18 2475 3020 3867 4313 5222 CFSD # Interval: 2021-05-13 - 2021-05-19 2650 3258 3870 4488 5292 CFSD # Interval: 2021-05-14 - 2021-05-20 2692 3290 4023 4608 5851 CFSD # Interval: 2021-05-15 - 2021-05-21 2688 3546 4023 4859 5851 CFSD # Interval: 2021-05-16 - 2021-05-22 2575 3675 4336 5065 5851 CFSD # Interval: 2021-05-17 - 2021-05-23 2912 3759 4542 5084 6273 CFSD # Interval: 2021-05-18 - 2021-05-24 2914 4042 4707 5328 7134 CFSD # Interval: 2021-05-19 - 2021-05-25 3431 4255 4954 5450 7134 CFSD # Interval: 2021-05-20 - 2021-05-26 3582 4327 5065 5724 7568 CFSD # Interval: 2021-05-21 - 2021-05-27 3824 4327 5104 6079 8073 CFSD # Interval: 2021-05-22 - 2021-05-28 3794 4462 5260 5831 8073 CFSD # Interval: 2021-05-23 - 2021-05-29 4038 4462 5271 6121 8226 CFSD # Interval: 2021-05-24 - 2021-05-30 4070 4466 5633 7192 8512 CFSD # Interval: 2021-05-25 - 2021-05-31 3947 4414 5633 7456 9019 CFSD # Interval: 2021-05-26 - 2021-06-01 3984 4466 5759 7764 9019 CFSD # Interval: 2021-05-27 - 2021-06-02 4060 4511 5721 8038 9019 CFSD # Interval: 2021-05-28 - 2021-06-03 4113 4511 5721 8206 8944 CFSD # Interval: 2021-05-29 - 2021-06-04 4197 4511 5992 8206 9716 CFSD # Interval: 2021-05-30 - 2021-06-05 4002 4817 6294 8272 10194 CFSD # Interval: 2021-05-31 - 2021-06-06 4002 4598 6446 8272 10194 CFSD # Interval: 2021-06-01 - 2021-06-07 3944 4598 6583 8272 10641 CFSD # Interval: 2021-06-02 - 2021-06-08 3623 4598 6828 8272 10848 CFSD # Interval: 2021-06-03 - 2021-06-09 3623 4374 6828 9249 11094 CFSD # Interval: 2021-06-04 - 2021-06-10 3479 4489 6664 9249 11120 CFSD # Interval: 2021-06-05 - 2021-06-11 3475 4451 6664 8452 11030 CFSD # Interval: 2021-06-06 - 2021-06-12 3695 4399 6041 8452 11030 CFSD # Interval: 2021-06-07 - 2021-06-13 3584 4387 5867 8452 11030 CFSD # Interval: 2021-06-08 - 2021-06-14 3584 4195 5867 8553 10914 CFSD # Interval: 2021-06-09 - 2021-06-15 3413 4195 5498 8553 10879 CFSD # Interval: 2021-06-10 - 2021-06-16 3396 4016 5444 8372 9754 CFSD # Interval: 2021-06-11 - 2021-06-17 3283 4016 4939 8020 9496 CFSD # Interval: 2021-06-12 - 2021-06-18 3149 3862 4749 7288 8724 CFSD # Interval: 2021-06-13 - 2021-06-19 3105 3453 4886 7080 8635 CFSD # Interval: 2021-06-14 - 2021-06-20 2791 3132 5038 7080 8635 CFSD # Interval: 2021-06-15 - 2021-06-21 2635 2933 4824 6776 8666 CFSD # Interval: 2021-06-16 - 2021-06-22 2455 2773 4405 6567 7833 CFSD # Interval: 2021-06-17 - 2021-06-23 2332 2685 4312 6132 7833 CFSD # Interval: 2021-06-18 - 2021-06-24 2030 2544 4036 5950 7833 CFSD # Interval: 2021-06-19 - 2021-06-25 1859 2429 3872 5677 7833 CFSD # Interval: 2021-06-20 - 2021-06-26 1737 2355 3723 5222 7498 CFSD # Interval: 2021-06-21 - 2021-06-27 1659 2231 3433 4942 7000 CFSD # Interval: 2021-06-22 - 2021-06-28 1548 2070 3320 4651 6913 CFSD # Interval: 2021-06-23 - 2021-06-29 1411 2026 3160 4491 6635 CFSD # Interval: 2021-06-24 - 2021-06-30 1280 1859 3025 4363 6161 CFSD # Interval: 2021-06-25 - 2021-07-01 1171 1793 2621 4176 5707 CFSD # Interval: 2021-06-26 - 2021-07-02 1092 1645 2418 3920 5287 CFSD # Interval: 2021-06-27 - 2021-07-03 1005 1513 2280 3544 4859 CFSD # Interval: 2021-06-28 - 2021-07-04 920 1376 2082 3362 4600 CFSD # Interval: 2021-06-29 - 2021-07-05 844 1239 1970 3199 4208 CFSD # Interval: 2021-06-30 - 2021-07-06 772 1115 1780 2997 3939 CFSD # Interval: 2021-07-01 - 2021-07-07 706 1059 1649 2929 3675 CFSD # Interval: 2021-07-02 - 2021-07-08 656 1059 1628 2576 3450 CFSD # Interval: 2021-07-03 - 2021-07-09 618 1021 1555 2364 3297 CFSD # Interval: 2021-07-04 - 2021-07-10 553 857 1390 2287 3047 CFSD # Interval: 2021-07-05 - 2021-07-11 506 742 1325 2008 2972 CFSD # Interval: 2021-07-06 - 2021-07-12 506 742 1284 1976 2766 CFSD # Interval: 2021-07-07 - 2021-07-13 482 669 1182 1898 2574 CFSD # Interval: 2021-07-08 - 2021-07-14 513 622 1091 1581 2492 CFSD # Interval: 2021-07-09 - 2021-07-15 490 583 1020 1485 2358 CFSD # Interval: 2021-07-10 - 2021-07-16 469 566 1057 1485 2228 CFSD # Interval: 2021-07-11 - 2021-07-17 453 566 990 1485 2103 CFSD # Interval: 2021-07-12 - 2021-07-18 442 562 917 1425 1798 CFSD # Interval: 2021-07-13 - 2021-07-19 432 541 856 1295 1682 CFSD # Interval: 2021-07-14 - 2021-07-20 422 530 800 1115 1601 CFSD # Interval: 2021-07-15 - 2021-07-21 413 506 756 1105 1435 CFSD # Interval: 2021-07-16 - 2021-07-22 398 491 721 1033 1329 CFSD # Interval: 2021-07-17 - 2021-07-23 385 472 681 876 1236 CFSD # Interval: 2021-07-18 - 2021-07-24 374 444 643 829 1119 CFSD # Interval: 2021-07-19 - 2021-07-25 361 414 623 783 1076 CFSD # Interval: 2021-07-20 - 2021-07-26 349 395 589 740 1027 CFSD # Interval: 2021-07-21 - 2021-07-27 339 412 551 698 994 CFSD # Interval: 2021-07-22 - 2021-07-28 326 393 526 657 994 CFSD # Interval: 2021-07-23 - 2021-07-29 316 376 512 624 971 CFSD # Interval: 2021-07-24 - 2021-07-30 313 365 492 624 900 CFSD # Interval: 2021-07-25 - 2021-07-31 308 354 472 598 783 CFSD 2-week Seasonal Peak Flow: # ESP Forecast Information # # Analysis Period: 2021-04-16 - 2021-07-31 (MST) # Forecast Parameters: River River Flow (Mean Daily) - (CFSD) # Forecast Interval: 2 week # Forecast Point: YDLC2L_F # # YDLC2L_F # Exceedance Prob. 0.90 0.75 0.50 0.25 0.10 Units # -------------------------------------------------------------------------------- # Interval: 2021-04-16 - 2021-04-29 1611 1704 1895 2304 2726 CFSD # Interval: 2021-04-17 - 2021-04-30 1663 1782 2068 2414 2844 CFSD # Interval: 2021-04-18 - 2021-05-01 1707 1873 2112 2602 3252 CFSD # Interval: 2021-04-19 - 2021-05-02 1749 1918 2210 2912 3608 CFSD # Interval: 2021-04-20 - 2021-05-03 1882 2042 2341 3000 3876 CFSD # Interval: 2021-04-21 - 2021-05-04 1886 2075 2414 3017 3888 CFSD # Interval: 2021-04-22 - 2021-05-05 1886 2106 2512 3286 4248 CFSD # Interval: 2021-04-23 - 2021-05-06 1979 2106 2667 3679 4648 CFSD # Interval: 2021-04-24 - 2021-05-07 1983 2112 2867 3679 4735 CFSD # Interval: 2021-04-25 - 2021-05-08 2017 2414 3219 3861 5006 CFSD # Interval: 2021-04-26 - 2021-05-09 2017 2414 3261 3930 5006 CFSD # Interval: 2021-04-27 - 2021-05-10 2318 2515 3261 3930 5006 CFSD # Interval: 2021-04-28 - 2021-05-11 2362 2667 3286 3861 4711 CFSD # Interval: 2021-04-29 - 2021-05-12 2464 2762 3317 3930 4855 CFSD # Interval: 2021-04-30 - 2021-05-13 2499 2867 3517 4014 5091 CFSD # Interval: 2021-05-01 - 2021-05-14 2538 2867 3517 4014 5091 CFSD # Interval: 2021-05-02 - 2021-05-15 2538 3040 3582 4313 5091 CFSD # Interval: 2021-05-03 - 2021-05-16 2662 3261 3675 4316 5487 CFSD # Interval: 2021-05-04 - 2021-05-17 2776 3263 3948 4455 5648 CFSD # Interval: 2021-05-05 - 2021-05-18 2776 3263 4013 4455 5648 CFSD # Interval: 2021-05-06 - 2021-05-19 2827 3263 4013 4608 5754 CFSD # Interval: 2021-05-07 - 2021-05-20 2876 3423 4023 4879 5851 CFSD # Interval: 2021-05-08 - 2021-05-21 3125 3546 4066 4879 5851 CFSD # Interval: 2021-05-09 - 2021-05-22 3281 3736 4542 5065 5851 CFSD # Interval: 2021-05-10 - 2021-05-23 3326 3867 4542 5096 6273 CFSD # Interval: 2021-05-11 - 2021-05-24 3326 4042 4707 5328 7134 CFSD # Interval: 2021-05-12 - 2021-05-25 3487 4255 4997 5450 7134 CFSD # Interval: 2021-05-13 - 2021-05-26 3674 4462 5084 5724 7590 CFSD # Interval: 2021-05-14 - 2021-05-27 3970 4511 5104 6121 8096 CFSD # Interval: 2021-05-15 - 2021-05-28 4038 4542 5315 6121 8096 CFSD # Interval: 2021-05-16 - 2021-05-29 4038 4542 5347 6247 8284 CFSD # Interval: 2021-05-17 - 2021-05-30 4074 4608 5633 7192 8522 CFSD # Interval: 2021-05-18 - 2021-05-31 4074 4683 5708 7456 9019 CFSD # Interval: 2021-05-19 - 2021-06-01 4074 4825 5759 7764 9019 CFSD # Interval: 2021-05-20 - 2021-06-02 4408 4825 5759 8038 9019 CFSD # Interval: 2021-05-21 - 2021-06-03 4408 4865 5831 8206 9136 CFSD # Interval: 2021-05-22 - 2021-06-04 4481 4825 5992 8272 9716 CFSD # Interval: 2021-05-23 - 2021-06-05 4481 4865 6294 8272 10194 CFSD # Interval: 2021-05-24 - 2021-06-06 4471 4865 6446 8272 10194 CFSD # Interval: 2021-05-25 - 2021-06-07 4376 4832 6664 8272 10641 CFSD # Interval: 2021-05-26 - 2021-06-08 4442 5263 6904 8272 10848 CFSD # Interval: 2021-05-27 - 2021-06-09 4415 5263 6988 9249 11094 CFSD # Interval: 2021-05-28 - 2021-06-10 4470 5079 6988 9249 11120 CFSD # Interval: 2021-05-29 - 2021-06-11 4473 4953 6988 9249 11120 CFSD # Interval: 2021-05-30 - 2021-06-12 4332 4825 6988 9249 11120 CFSD # Interval: 2021-05-31 - 2021-06-13 4224 4825 6988 9249 11120 CFSD # Interval: 2021-06-01 - 2021-06-14 3944 4598 6828 9249 11120 CFSD # Interval: 2021-06-02 - 2021-06-15 3854 4598 6828 9249 11120 CFSD # Interval: 2021-06-03 - 2021-06-16 3854 4496 6828 9249 11320 CFSD # Interval: 2021-06-04 - 2021-06-17 3695 4496 6664 9249 11320 CFSD # Interval: 2021-06-05 - 2021-06-18 3695 4451 6664 8756 11230 CFSD # Interval: 2021-06-06 - 2021-06-19 3695 4451 6041 8634 11230 CFSD # Interval: 2021-06-07 - 2021-06-20 3584 4451 6518 8634 11230 CFSD # Interval: 2021-06-08 - 2021-06-21 3584 4387 5959 8634 10914 CFSD # Interval: 2021-06-09 - 2021-06-22 3413 4268 5826 8606 10879 CFSD # Interval: 2021-06-10 - 2021-06-23 3396 4195 5457 8553 9754 CFSD # Interval: 2021-06-11 - 2021-06-24 3283 4195 5121 8141 9496 CFSD # Interval: 2021-06-12 - 2021-06-25 3149 4021 5121 7882 8724 CFSD # Interval: 2021-06-13 - 2021-06-26 3105 3453 5121 7317 8666 CFSD # Interval: 2021-06-14 - 2021-06-27 2791 3132 5038 7183 8666 CFSD # Interval: 2021-06-15 - 2021-06-28 2635 2933 4824 6776 8666 CFSD # Interval: 2021-06-16 - 2021-06-29 2455 2773 4405 6567 7833 CFSD # Interval: 2021-06-17 - 2021-06-30 2332 2685 4312 6132 7833 CFSD # Interval: 2021-06-18 - 2021-07-01 2030 2544 4036 5950 7833 CFSD # Interval: 2021-06-19 - 2021-07-02 1859 2429 3872 5677 7833 CFSD # Interval: 2021-06-20 - 2021-07-03 1737 2355 3723 5222 7498 CFSD # Interval: 2021-06-21 - 2021-07-04 1659 2231 3433 4942 7000 CFSD # Interval: 2021-06-22 - 2021-07-05 1548 2070 3320 4651 6913 CFSD # Interval: 2021-06-23 - 2021-07-06 1411 2026 3160 4491 6635 CFSD # Interval: 2021-06-24 - 2021-07-07 1280 1859 3025 4363 6161 CFSD # Interval: 2021-06-25 - 2021-07-08 1171 1793 2621 4176 5707 CFSD # Interval: 2021-06-26 - 2021-07-09 1092 1645 2418 3920 5287 CFSD # Interval: 2021-06-27 - 2021-07-10 1005 1513 2280 3544 4859 CFSD # Interval: 2021-06-28 - 2021-07-11 920 1376 2082 3362 4600 CFSD # Interval: 2021-06-29 - 2021-07-12 844 1239 1970 3199 4208 CFSD # Interval: 2021-06-30 - 2021-07-13 772 1115 1780 2997 3939 CFSD # Interval: 2021-07-01 - 2021-07-14 706 1059 1649 2929 3675 CFSD # Interval: 2021-07-02 - 2021-07-15 656 1059 1628 2576 3450 CFSD # Interval: 2021-07-03 - 2021-07-16 618 1021 1555 2364 3297 CFSD # Interval: 2021-07-04 - 2021-07-17 563 857 1390 2287 3047 CFSD # Interval: 2021-07-05 - 2021-07-18 546 742 1325 2008 2972 CFSD # Interval: 2021-07-06 - 2021-07-19 546 742 1284 1976 2766 CFSD # Interval: 2021-07-07 - 2021-07-20 535 669 1182 1898 2574 CFSD # Interval: 2021-07-08 - 2021-07-21 513 622 1105 1581 2492 CFSD # Interval: 2021-07-09 - 2021-07-22 490 583 1105 1485 2358 CFSD # Interval: 2021-07-10 - 2021-07-23 469 566 1057 1485 2228 CFSD # Interval: 2021-07-11 - 2021-07-24 453 566 990 1485 2103 CFSD # Interval: 2021-07-12 - 2021-07-25 442 562 917 1425 1798 CFSD # Interval: 2021-07-13 - 2021-07-26 432 541 856 1295 1682 CFSD # Interval: 2021-07-14 - 2021-07-27 422 530 800 1115 1601 CFSD # Interval: 2021-07-15 - 2021-07-28 413 509 756 1105 1435 CFSD # Interval: 2021-07-16 - 2021-07-29 398 492 721 1033 1329 CFSD # Interval: 2021-07-17 - 2021-07-30 385 480 681 876 1236 CFSD # Interval: 2021-07-18 - 2021-07-31 374 454 643 829 1119 CFSD Please feel free to contact the forecaster at ashley.nielson@noaa.gov Issued by: A.Nielson NNNN $$