==================================================================================================================================== SIERRA NEVADA WATERSHED ANALYSIS SYSTEM USGS STREAMFLOW DATA PROCESSING REPORT V3.0 RUN 2026-11-14 19:09:59 UTC ==================================================================================================================================== SECTION I: LATEST DAILY MEAN VS NORMAL FOR THE DATE NORMAL = PERCENTILES OF DAILY FLOW FOR THE DATE, WATER YEARS 1996-2025, 7-DAY WINDOW. CLASSES AS USGS WATERWATCH. SITE ID STATION DATE CFS P10 P25 MEDIAN P75 P90 % MED CLASS ------------------------------------------------------------------------------------------------------------------------------------ 11274790 Tuolumne R Grand Canyon 2026-11-13 19.60 9.18 11.25 31.00 161.50 297.60 63.2% NORMAL 11276500 Tuolumne R nr Hetch Hetchy 2026-11-13 55.50 37.61 53.20 60.00 62.63 66.09 92.5% NORMAL 11284400 Big Creek nr Groveland 2026-11-13 0.00 0.00 0.00 0.00 0.01 0.18 -- NORMAL 11289650 Tuolumne R bl La Grange 2026-11-13 193.00 165.00 175.75 254.50 354.25 382.00 75.8% NORMAL 11290000 Tuolumne R at Modesto 2026-11-13 159.00 178.00 211.75 309.00 441.75 480.90 51.5% MUCH BELOW NORMAL 11264500 Merced R at Happy Isles 2026-11-13 18.00 7.02 13.00 22.00 63.50 151.30 81.8% NORMAL 11266500 Merced R at Pohono Bridge 2026-11-13 28.30 18.70 24.43 45.65 105.00 254.20 62.0% NORMAL 11303000 Stanislaus R at Ripon 2026-11-13 305.00 226.00 256.75 317.00 408.50 675.80 96.2% NORMAL SECTION II: LAST 30 DAYS VS NORMAL FOR THOSE DATES % NORMAL = 30-DAY TOTAL FLOW / TOTAL OF THE DAILY MEDIANS. TREND = LAST 7 DAYS VS THE 7 BEFORE, +/-10% OR MORE. SITE ID STATION DAYS MEAN CFS MIN CFS MAX CFS % NORMAL DAYSP90 7-DAY TREND ------------------------------------------------------------------------------------------------------------------------------------ 11274790 Tuolumne R Grand Canyon 30 15.05 6.90 39.60 76.3% 4 0 FALLING -32.8% 11276500 Tuolumne R nr Hetch Hetchy 30 55.89 53.90 61.20 93.5% 0 0 STEADY 11284400 Big Creek nr Groveland 30 0.00 0.00 0.00 -- 0 0 STEADY 11289650 Tuolumne R bl La Grange 30 429.67 190.00 1800.00 135.8% 0 5 STEADY 11290000 Tuolumne R at Modesto 30 457.37 146.00 1720.00 110.5% 11 6 FALLING -21.6% 11264500 Merced R at Happy Isles 30 11.13 3.41 23.80 75.1% 4 0 FALLING -12.7% 11266500 Merced R at Pohono Bridge 30 21.69 13.80 36.20 66.4% 0 0 STEADY 11303000 Stanislaus R at Ripon 30 591.83 253.00 1050.00 101.9% 2 0 FALLING -48.2% SECTION III: WATERSHED BASINS GAGES ON ONE RIVER MEASURE THE SAME WATER, SO THEY ARE NOT ADDED. THE LOWEST GAGE IS WHAT LEAVES THE BASIN. BASIN GAGES LOWEST GAGE (BASIN OUTFLOW) CFS CLASS MUCH BELOW BELOW NORMAL ABOVE MUCH ABOVE ------------------------------------------------------------------------------------------------------------------------------------ TUOLUMNE 5 Tuolumne R at Modesto 159.00 MUCH BELOW NORMAL 1 0 4 0 0 MERCED 2 Merced R at Pohono Bridge 28.30 NORMAL 0 0 2 0 0 STANISLAUS 1 Stanislaus R at Ripon 305.00 NORMAL 0 0 1 0 0 SECTION IV: RUN SUMMARY GAGES PROCESSED .................. 8 DAILY NORMALS READ ............... 2928 DAILY MEANS READ ................. 480 RECORDS SKIPPED (INVALID) ........ 0 GAGES STALE OR WITHOUT DATA ...... 0 WATERSHED BASINS ................. 3 RETURN CODE ...................... 0 ==================================================================================================================================== END OF REPORT - SIERRA-FLOW V3.0 ====================================================================================================================================