ALTA/LITTLE COTTONWOOD CANYON HRRR-DERIVED FORECAST GUIDANCE *************************************************************** * THIS IS AN EXPERIMENTAL, AUTOMATED, AND UNOFFICIAL FORECAST * *************************************************************** CREATED/MAINTAINED BY THE STEENBURGH GROUP DEPARTMENT OF ATMOSPHERIC SCIENCES UNIVERSITY OF UTAH Contact: jim.steenburgh@utah.edu WETBULBZERO, 1H QPF, ACCUM QPF DIRECTLY FROM HRRR COLLINS SNOW RATIO/H2O, MT BALDY T/RH, MT BALDY WIND, 1H SNOW, and ACCUM SNOW based on machine learning including UU RF SLR algorithm Based on 18Z 21-Jan-2025 intialized HRRR FORECAST HOURS 0-48 FHR VALID MOUNTAIN TIME COLLINS T MT BALDY T/RH MT BALDY WIND WETBULBZERO SLR/H2O 1H QPF / 1H SNOW / ACCUM QPF / ACCUM SNOW 0 11 AM Tue Jan 21 2025 16F 13F / 35% WNW 36 G 53 MPH ≤ KSLC 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 1 12 PM Tue Jan 21 2025 20F 14F / 29% WNW 35 G 54 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 2 01 PM Tue Jan 21 2025 20F 13F / 29% W 37 G 55 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 3 02 PM Tue Jan 21 2025 20F 12F / 34% W 37 G 55 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 4 03 PM Tue Jan 21 2025 18F 11F / 33% W 38 G 55 MPH ≤ KSLC 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 5 04 PM Tue Jan 21 2025 16F 10F / 39% W 38 G 54 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 6 05 PM Tue Jan 21 2025 13F 9F / 42% WNW 39 G 57 MPH ≤ KSLC 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 7 06 PM Tue Jan 21 2025 10F 8F / 43% WNW 38 G 57 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 8 07 PM Tue Jan 21 2025 10F 8F / 45% WNW 38 G 56 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 9 08 PM Tue Jan 21 2025 10F 7F / 46% WNW 37 G 53 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 10 09 PM Tue Jan 21 2025 9F 6F / 56% WNW 37 G 54 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 11 10 PM Tue Jan 21 2025 9F 5F / 61% WNW 38 G 55 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 12 11 PM Tue Jan 21 2025 9F 6F / 62% WNW 38 G 54 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 13 12 AM Wed Jan 22 2025 8F 5F / 63% WNW 39 G 56 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 14 01 AM Wed Jan 22 2025 8F 4F / 66% WNW 40 G 58 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 15 02 AM Wed Jan 22 2025 6F 3F / 70% WNW 40 G 60 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 16 03 AM Wed Jan 22 2025 5F 2F / 70% WNW 39 G 59 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 17 04 AM Wed Jan 22 2025 5F 2F / 68% WNW 40 G 60 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 18 05 AM Wed Jan 22 2025 4F 1F / 71% WNW 39 G 57 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 19 06 AM Wed Jan 22 2025 3F 0F / 78% WNW 38 G 58 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 20 07 AM Wed Jan 22 2025 2F 0F / 76% WNW 36 G 53 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 21 08 AM Wed Jan 22 2025 1F -1F / 75% WNW 34 G 50 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 22 09 AM Wed Jan 22 2025 3F -1F / 75% NW 35 G 49 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 23 10 AM Wed Jan 22 2025 6F 0F / 78% NW 33 G 47 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 24 11 AM Wed Jan 22 2025 7F 0F / 83% NW 28 G 42 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 25 12 PM Wed Jan 22 2025 10F 0F / 84% NW 25 G 38 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 26 01 PM Wed Jan 22 2025 12F 1F / 86% NW 25 G 35 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 27 02 PM Wed Jan 22 2025 12F 1F / 84% WNW 22 G 31 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 28 03 PM Wed Jan 22 2025 11F 1F / 91% NW 22 G 31 MPH ≤ KSLC 23:1 / 4% 0.00" / 0.0" 0.00" / 0.0" 29 04 PM Wed Jan 22 2025 9F 1F / 91% NW 23 G 32 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 30 05 PM Wed Jan 22 2025 6F 0F / 93% NW 25 G 37 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 31 06 PM Wed Jan 22 2025 2F -2F / 89% NW 28 G 41 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 32 07 PM Wed Jan 22 2025 0F -1F / 87% S 25 G 40 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 33 08 PM Wed Jan 22 2025 0F -2F / 83% NW 30 G 42 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 34 09 PM Wed Jan 22 2025 0F -3F / 83% SE 28 G 36 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 35 10 PM Wed Jan 22 2025 0F -3F / 88% NNW 29 G 43 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 36 11 PM Wed Jan 22 2025 0F -1F / 87% NW 30 G 46 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 37 12 AM Thu Jan 23 2025 0F -2F / 83% NNW 28 G 43 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 38 01 AM Thu Jan 23 2025 0F -3F / 90% NNW 27 G 39 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 39 02 AM Thu Jan 23 2025 0F -2F / 96% NNW 25 G 43 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 40 03 AM Thu Jan 23 2025 0F -2F / 94% NNW 27 G 39 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 41 04 AM Thu Jan 23 2025 0F -1F / 90% NNW 26 G 39 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 42 05 AM Thu Jan 23 2025 0F -1F / 85% N 26 G 34 MPH ≤ KSLC 21:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 43 06 AM Thu Jan 23 2025 0F -1F / 77% SE 27 G 41 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 44 07 AM Thu Jan 23 2025 0F 0F / 75% NW 28 G 45 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 45 08 AM Thu Jan 23 2025 0F 0F / 72% NNW 28 G 43 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 46 09 AM Thu Jan 23 2025 1F 1F / 69% NNW 30 G 40 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 47 10 AM Thu Jan 23 2025 0F 2F / 68% NNW 29 G 42 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 48 11 AM Thu Jan 23 2025 9F 6F / 67% NNW 26 G 38 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0"