SLCESGCO COLORADO BASIN RIVER FORECASTCENTER NATIONAL WEATHER SERVICE SALT LAKE CITY UTAH May 05, 2025 Seasonal outlook for maximum flows: YDLC2L_F Comments: Daily model and ESP are both starting to indicate a peak around the middle of the month. However, the daily deterministic model is currently forecasting a peak of around 7500 cfs. Both assume Elkhead is releasing 500 cfs at the time. Precipitation and temperatures over the next 10-15 days as well as Elkhead Reservoir operations will play a big role in the final peak. # ESP Forecast Information # # Analysis Period: 2025-05-05 - 2025-07-31 (MST) # Forecast Parameters: River Discharge # Forecast Interval: 2025-05-05 - 2025-07-31 (MST) # Forecast Point: YDLC2L_F Daily Peak -- Seasonal Maximum # # YDLC2L_F # Exceedance Prob. 0.90 0.75 0.50 0.25 0.10 Units # ------------------------------------------------------------------ # 7822 8117 8401 9293 10683 CFSD Number of Days to Peak from: 2025-05-05 # # YDLC2L_F # Exceedance Prob. 0.90 0.75 0.50 0.25 0.10 Units # ------------------------------------------------------------------ # 10 10 11 19 27 DAYS Number of Days Above: 8000 cfs # # YDLC2L_F # Exceedance Prob. 0.90 0.75 0.50 0.25 0.10 Units # ------------------------------------------------------------------ # 0 1 2 5 7 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 1 DAYS 1-week Seasonal Peak Flow Max Highlight: # Exceedance Prob. 0.90 0.75 0.50 0.25 0.10 Units # -------------------------------------------------------------------------------- # Interval: 2025-05-11 - 2025-05-17 7778 7895 8139 8511 9958 CFSD # Interval: 2025-05-12 - 2025-05-18 7778 7895 8139 8511 9958 CFSD # Interval: 2025-05-13 - 2025-05-19 7778 7977 8229 8745 9958 CFSD # Interval: 2025-05-14 - 2025-05-20 7778 7980 8229 8745 9958 CFSD # Interval: 2025-05-15 - 2025-05-21 7778 7980 8229 8745 9958 CFSD 2-week Seasonal Peak Flow Max Highlight: # Exceedance Prob. 0.90 0.75 0.50 0.25 0.10 Units # -------------------------------------------------------------------------------- # Interval: 2025-05-10 - 2025-05-23 7778 7992 8282 8745 9958 CFSD # Interval: 2025-05-11 - 2025-05-24 7778 8018 8318 8805 10087 CFSD # Interval: 2025-05-12 - 2025-05-25 7778 8018 8328 8905 10087 CFSD # Interval: 2025-05-13 - 2025-05-26 7778 8018 8328 8905 10087 CFSD # Interval: 2025-05-14 - 2025-05-27 7778 8018 8328 8905 10087 CFSD 1-week Seasonal Peak Flow: # ESP Forecast Information # # Analysis Period: 2025-05-05 - 2025-07-31 (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: 2025-05-05 - 2025-05-11 5584 5597 5612 5640 5658 CFSD # Interval: 2025-05-06 - 2025-05-12 5681 5712 5744 5781 5819 CFSD # Interval: 2025-05-07 - 2025-05-13 6449 6485 6521 6556 6603 CFSD # Interval: 2025-05-08 - 2025-05-14 7300 7343 7388 7477 7658 CFSD # Interval: 2025-05-09 - 2025-05-15 7774 7873 8062 8396 9631 CFSD # Interval: 2025-05-10 - 2025-05-16 7778 7895 8139 8439 9958 CFSD # Interval: 2025-05-11 - 2025-05-17 7778 7895 8139 8511 9958 CFSD # Interval: 2025-05-12 - 2025-05-18 7778 7895 8139 8511 9958 CFSD # Interval: 2025-05-13 - 2025-05-19 7778 7977 8229 8745 9958 CFSD # Interval: 2025-05-14 - 2025-05-20 7778 7980 8229 8745 9958 CFSD # Interval: 2025-05-15 - 2025-05-21 7778 7980 8229 8745 9958 CFSD # Interval: 2025-05-16 - 2025-05-22 7620 7664 8049 8700 9466 CFSD # Interval: 2025-05-17 - 2025-05-23 7226 7469 7879 8477 9102 CFSD # Interval: 2025-05-18 - 2025-05-24 7284 7460 8027 8356 8920 CFSD # Interval: 2025-05-19 - 2025-05-25 7167 7413 7882 8531 9182 CFSD # Interval: 2025-05-20 - 2025-05-26 7160 7315 7882 8335 9179 CFSD # Interval: 2025-05-21 - 2025-05-27 6814 7299 7694 8335 9179 CFSD # Interval: 2025-05-22 - 2025-05-28 6570 7061 7679 8335 9179 CFSD # Interval: 2025-05-23 - 2025-05-29 6593 6828 7456 8335 9179 CFSD # Interval: 2025-05-24 - 2025-05-30 6555 6906 7307 8335 9497 CFSD # Interval: 2025-05-25 - 2025-05-31 6555 6714 7205 8148 9459 CFSD # Interval: 2025-05-26 - 2025-06-01 5603 6129 6962 7849 8585 CFSD # Interval: 2025-05-27 - 2025-06-02 5391 5828 6840 7717 8588 CFSD # Interval: 2025-05-28 - 2025-06-03 5289 6023 6752 7348 8562 CFSD # Interval: 2025-05-29 - 2025-06-04 5056 6007 6559 7274 8562 CFSD # Interval: 2025-05-30 - 2025-06-05 5056 5641 6559 7222 8562 CFSD # Interval: 2025-05-31 - 2025-06-06 4765 5651 6443 7140 8562 CFSD # Interval: 2025-06-01 - 2025-06-07 4875 5504 6037 7312 8562 CFSD # Interval: 2025-06-02 - 2025-06-08 4817 5098 6037 6859 8562 CFSD # Interval: 2025-06-03 - 2025-06-09 4721 5059 5677 6696 8360 CFSD # Interval: 2025-06-04 - 2025-06-10 4721 4948 5648 6578 7916 CFSD # Interval: 2025-06-05 - 2025-06-11 4473 4889 5496 6179 7838 CFSD # Interval: 2025-06-06 - 2025-06-12 4457 4889 5404 5861 7548 CFSD # Interval: 2025-06-07 - 2025-06-13 4352 4710 5124 5820 7548 CFSD # Interval: 2025-06-08 - 2025-06-14 4138 4393 5016 5680 7223 CFSD # Interval: 2025-06-09 - 2025-06-15 3772 4336 4849 5740 6880 CFSD # Interval: 2025-06-10 - 2025-06-16 3682 4140 4542 5788 6696 CFSD # Interval: 2025-06-11 - 2025-06-17 3676 3875 4308 5519 6221 CFSD # Interval: 2025-06-12 - 2025-06-18 3414 3754 4292 5210 6006 CFSD # Interval: 2025-06-13 - 2025-06-19 3030 3512 4104 4991 5915 CFSD # Interval: 2025-06-14 - 2025-06-20 2881 3126 3883 4922 6173 CFSD # Interval: 2025-06-15 - 2025-06-21 2529 2951 3749 4552 6143 CFSD # Interval: 2025-06-16 - 2025-06-22 2473 2888 3551 4261 6094 CFSD # Interval: 2025-06-17 - 2025-06-23 2424 2647 3326 4047 5527 CFSD # Interval: 2025-06-18 - 2025-06-24 2312 2423 3269 3747 6071 CFSD # Interval: 2025-06-19 - 2025-06-25 2120 2411 3035 3747 5826 CFSD # Interval: 2025-06-20 - 2025-06-26 1976 2333 2914 3733 5747 CFSD # Interval: 2025-06-21 - 2025-06-27 1856 2101 2881 3349 5154 CFSD # Interval: 2025-06-22 - 2025-06-28 1728 1922 2694 3240 4650 CFSD # Interval: 2025-06-23 - 2025-06-29 1512 1786 2599 3139 4627 CFSD # Interval: 2025-06-24 - 2025-06-30 1302 1575 2529 2986 4508 CFSD # Interval: 2025-06-25 - 2025-07-01 1172 1415 2307 2788 4253 CFSD # Interval: 2025-06-26 - 2025-07-02 1060 1283 2232 2526 3876 CFSD # Interval: 2025-06-27 - 2025-07-03 970 1192 2051 2391 3467 CFSD # Interval: 2025-06-28 - 2025-07-04 926 1093 1829 2391 3212 CFSD # Interval: 2025-06-29 - 2025-07-05 860 967 1666 2295 3012 CFSD # Interval: 2025-06-30 - 2025-07-06 770 914 1561 1962 2795 CFSD # Interval: 2025-07-01 - 2025-07-07 697 837 1452 1756 2556 CFSD # Interval: 2025-07-02 - 2025-07-08 629 806 1319 1559 2444 CFSD # Interval: 2025-07-03 - 2025-07-09 559 738 1201 1423 2416 CFSD # Interval: 2025-07-04 - 2025-07-10 501 650 989 1310 2299 CFSD # Interval: 2025-07-05 - 2025-07-11 455 542 863 1260 2192 CFSD # Interval: 2025-07-06 - 2025-07-12 394 488 767 1236 2041 CFSD # Interval: 2025-07-07 - 2025-07-13 367 461 781 1131 1883 CFSD # Interval: 2025-07-08 - 2025-07-14 320 437 706 998 1821 CFSD # Interval: 2025-07-09 - 2025-07-15 301 425 658 893 1809 CFSD # Interval: 2025-07-10 - 2025-07-16 268 383 596 861 1804 CFSD # Interval: 2025-07-11 - 2025-07-17 247 348 565 813 1739 CFSD # Interval: 2025-07-12 - 2025-07-18 240 343 525 780 1535 CFSD # Interval: 2025-07-13 - 2025-07-19 240 289 496 756 1374 CFSD # Interval: 2025-07-14 - 2025-07-20 206 253 452 635 1282 CFSD # Interval: 2025-07-15 - 2025-07-21 195 253 398 549 1143 CFSD # Interval: 2025-07-16 - 2025-07-22 187 241 382 500 1044 CFSD # Interval: 2025-07-17 - 2025-07-23 166 241 340 459 1011 CFSD # Interval: 2025-07-18 - 2025-07-24 146 238 332 422 859 CFSD # Interval: 2025-07-19 - 2025-07-25 144 214 297 407 844 CFSD # Interval: 2025-07-20 - 2025-07-26 142 180 274 391 803 CFSD # Interval: 2025-07-21 - 2025-07-27 126 180 270 377 756 CFSD # Interval: 2025-07-22 - 2025-07-28 111 157 273 348 751 CFSD # Interval: 2025-07-23 - 2025-07-29 112 155 265 344 751 CFSD # Interval: 2025-07-24 - 2025-07-30 109 162 249 344 701 CFSD # Interval: 2025-07-25 - 2025-07-31 119 161 228 344 620 CFSD 2-week Seasonal Peak Flow: # ESP Forecast Information # # Analysis Period: 2025-05-05 - 2025-07-31 (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: 2025-05-05 - 2025-05-18 7778 7895 8139 8511 9958 CFSD # Interval: 2025-05-06 - 2025-05-19 7778 7977 8229 8745 9958 CFSD # Interval: 2025-05-07 - 2025-05-20 7778 7980 8229 8745 9958 CFSD # Interval: 2025-05-08 - 2025-05-21 7778 7980 8229 8745 9958 CFSD # Interval: 2025-05-09 - 2025-05-22 7778 7980 8282 8745 9958 CFSD # Interval: 2025-05-10 - 2025-05-23 7778 7992 8282 8745 9958 CFSD # Interval: 2025-05-11 - 2025-05-24 7778 8018 8318 8805 10087 CFSD # Interval: 2025-05-12 - 2025-05-25 7778 8018 8328 8905 10087 CFSD # Interval: 2025-05-13 - 2025-05-26 7778 8018 8328 8905 10087 CFSD # Interval: 2025-05-14 - 2025-05-27 7778 8018 8328 8905 10087 CFSD # Interval: 2025-05-15 - 2025-05-28 7778 8018 8328 8905 10087 CFSD # Interval: 2025-05-16 - 2025-05-29 7643 7835 8241 8882 10042 CFSD # Interval: 2025-05-17 - 2025-05-30 7308 7547 8155 8774 9514 CFSD # Interval: 2025-05-18 - 2025-05-31 7296 7460 8027 8697 9505 CFSD # Interval: 2025-05-19 - 2025-06-01 7283 7413 7992 8637 9505 CFSD # Interval: 2025-05-20 - 2025-06-02 7217 7315 7976 8642 9505 CFSD # Interval: 2025-05-21 - 2025-06-03 6825 7315 7882 8642 9505 CFSD # Interval: 2025-05-22 - 2025-06-04 6738 7282 7811 8642 9505 CFSD # Interval: 2025-05-23 - 2025-06-05 6644 7221 7694 8533 9505 CFSD # Interval: 2025-05-24 - 2025-06-06 6559 7117 7490 8533 9497 CFSD # Interval: 2025-05-25 - 2025-06-07 6559 6758 7232 8530 9495 CFSD # Interval: 2025-05-26 - 2025-06-08 5808 6432 6962 7956 9202 CFSD # Interval: 2025-05-27 - 2025-06-09 5445 6073 6848 7717 9072 CFSD # Interval: 2025-05-28 - 2025-06-10 5365 6045 6759 7539 9072 CFSD # Interval: 2025-05-29 - 2025-06-11 5074 6007 6625 7435 9072 CFSD # Interval: 2025-05-30 - 2025-06-12 5074 5651 6559 7343 9072 CFSD # Interval: 2025-05-31 - 2025-06-13 5026 5651 6443 7343 9072 CFSD # Interval: 2025-06-01 - 2025-06-14 5026 5504 6037 7312 8562 CFSD # Interval: 2025-06-02 - 2025-06-15 4817 5166 6037 6859 8562 CFSD # Interval: 2025-06-03 - 2025-06-16 4721 5066 5716 6735 8360 CFSD # Interval: 2025-06-04 - 2025-06-17 4721 4948 5672 6717 7916 CFSD # Interval: 2025-06-05 - 2025-06-18 4473 4889 5496 6328 7838 CFSD # Interval: 2025-06-06 - 2025-06-19 4457 4889 5404 6157 7548 CFSD # Interval: 2025-06-07 - 2025-06-20 4352 4710 5234 6326 7548 CFSD # Interval: 2025-06-08 - 2025-06-21 4138 4593 5050 6326 7223 CFSD # Interval: 2025-06-09 - 2025-06-22 3820 4454 4994 6326 6890 CFSD # Interval: 2025-06-10 - 2025-06-23 3808 4195 4642 6000 6696 CFSD # Interval: 2025-06-11 - 2025-06-24 3728 3981 4488 5754 6491 CFSD # Interval: 2025-06-12 - 2025-06-25 3414 3754 4386 5447 6274 CFSD # Interval: 2025-06-13 - 2025-06-26 3082 3512 4104 5422 6274 CFSD # Interval: 2025-06-14 - 2025-06-27 2881 3169 3883 5120 6274 CFSD # Interval: 2025-06-15 - 2025-06-28 2529 2951 3749 4802 6274 CFSD # Interval: 2025-06-16 - 2025-06-29 2473 2888 3551 4327 6274 CFSD # Interval: 2025-06-17 - 2025-06-30 2424 2647 3326 4047 6129 CFSD # Interval: 2025-06-18 - 2025-07-01 2312 2423 3269 3747 6071 CFSD # Interval: 2025-06-19 - 2025-07-02 2120 2411 3035 3747 5826 CFSD # Interval: 2025-06-20 - 2025-07-03 1976 2333 2914 3733 5747 CFSD # Interval: 2025-06-21 - 2025-07-04 1856 2101 2881 3349 5154 CFSD # Interval: 2025-06-22 - 2025-07-05 1728 1922 2694 3240 4650 CFSD # Interval: 2025-06-23 - 2025-07-06 1512 1786 2599 3139 4627 CFSD # Interval: 2025-06-24 - 2025-07-07 1302 1575 2529 2986 4508 CFSD # Interval: 2025-06-25 - 2025-07-08 1172 1415 2307 2788 4253 CFSD # Interval: 2025-06-26 - 2025-07-09 1060 1283 2232 2526 3876 CFSD # Interval: 2025-06-27 - 2025-07-10 970 1192 2051 2391 3467 CFSD # Interval: 2025-06-28 - 2025-07-11 926 1093 1829 2391 3212 CFSD # Interval: 2025-06-29 - 2025-07-12 860 967 1666 2295 3012 CFSD # Interval: 2025-06-30 - 2025-07-13 770 914 1561 1962 2795 CFSD # Interval: 2025-07-01 - 2025-07-14 697 837 1452 1756 2556 CFSD # Interval: 2025-07-02 - 2025-07-15 629 806 1319 1559 2444 CFSD # Interval: 2025-07-03 - 2025-07-16 559 738 1201 1438 2416 CFSD # Interval: 2025-07-04 - 2025-07-17 501 650 989 1387 2299 CFSD # Interval: 2025-07-05 - 2025-07-18 455 542 863 1365 2192 CFSD # Interval: 2025-07-06 - 2025-07-19 412 488 789 1301 2041 CFSD # Interval: 2025-07-07 - 2025-07-20 371 472 781 1199 1883 CFSD # Interval: 2025-07-08 - 2025-07-21 320 437 706 1102 1821 CFSD # Interval: 2025-07-09 - 2025-07-22 301 425 658 958 1809 CFSD # Interval: 2025-07-10 - 2025-07-23 268 383 596 861 1804 CFSD # Interval: 2025-07-11 - 2025-07-24 247 348 565 813 1739 CFSD # Interval: 2025-07-12 - 2025-07-25 240 343 525 780 1535 CFSD # Interval: 2025-07-13 - 2025-07-26 240 289 496 756 1374 CFSD # Interval: 2025-07-14 - 2025-07-27 206 253 452 635 1282 CFSD # Interval: 2025-07-15 - 2025-07-28 195 262 398 549 1143 CFSD # Interval: 2025-07-16 - 2025-07-29 187 249 382 500 1044 CFSD # Interval: 2025-07-17 - 2025-07-30 175 243 344 459 1011 CFSD # Interval: 2025-07-18 - 2025-07-31 149 238 335 422 859 CFSD Please feel free to contact the forecaster at brenda.alcorn@noaa.gov Issued by: B.Alcorn NNNN $$