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 12Z 19-Mar-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 06 AM Wed Mar 19 2025 2F 0F / 81% NW 19 G 26 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 1 07 AM Wed Mar 19 2025 4F 1F / 80% NNW 18 G 25 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 2 08 AM Wed Mar 19 2025 3F 1F / 75% NNW 16 G 26 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 3 09 AM Wed Mar 19 2025 4F 2F / 70% SE 19 G 25 MPH ≤ KSLC 22:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 4 10 AM Wed Mar 19 2025 8F 4F / 71% NW 19 G 27 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 5 11 AM Wed Mar 19 2025 11F 8F / 65% NW 18 G 23 MPH ≤ KSLC 19:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 6 12 PM Wed Mar 19 2025 15F 8F / 73% NW 13 G 20 MPH ≤ KSLC 20:1 / 5% 0.00" / 0.0" 0.00" / 0.0" 7 01 PM Wed Mar 19 2025 17F 11F / 56% W 12 G 17 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 8 02 PM Wed Mar 19 2025 19F 11F / 58% NW 10 G 14 MPH ≤ KSLC 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 9 03 PM Wed Mar 19 2025 21F 13F / 54% NW 10 G 14 MPH 4300 FT 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 10 04 PM Wed Mar 19 2025 20F 12F / 81% NW 9 G 12 MPH 4300 FT 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 11 05 PM Wed Mar 19 2025 20F 14F / 75% NW 8 G 10 MPH 4300 FT 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 12 06 PM Wed Mar 19 2025 21F 16F / 78% WNW 10 G 14 MPH ≤ KSLC 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 13 07 PM Wed Mar 19 2025 18F 15F / 46% W 12 G 16 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 14 08 PM Wed Mar 19 2025 14F 14F / 45% WSW 14 G 19 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 15 09 PM Wed Mar 19 2025 14F 14F / 44% WSW 16 G 22 MPH ≤ KSLC 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 16 10 PM Wed Mar 19 2025 15F 16F / 39% WSW 17 G 24 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 17 11 PM Wed Mar 19 2025 16F 16F / 33% WSW 18 G 27 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 18 12 AM Thu Mar 20 2025 17F 17F / 32% WSW 19 G 28 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 19 01 AM Thu Mar 20 2025 17F 17F / 35% WSW 19 G 29 MPH ≤ KSLC 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 20 02 AM Thu Mar 20 2025 17F 17F / 43% WSW 20 G 31 MPH ≤ KSLC 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 21 03 AM Thu Mar 20 2025 18F 17F / 50% SW 19 G 35 MPH ≤ KSLC 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 22 04 AM Thu Mar 20 2025 19F 17F / 50% SW 21 G 37 MPH ≤ KSLC 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 23 05 AM Thu Mar 20 2025 20F 17F / 60% SW 24 G 42 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 24 06 AM Thu Mar 20 2025 20F 18F / 47% SW 26 G 43 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 25 07 AM Thu Mar 20 2025 19F 17F / 46% SW 25 G 41 MPH ≤ KSLC 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 26 08 AM Thu Mar 20 2025 19F 16F / 52% SW 27 G 41 MPH ≤ KSLC 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 27 09 AM Thu Mar 20 2025 19F 16F / 54% WSW 25 G 39 MPH ≤ KSLC 13:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 28 10 AM Thu Mar 20 2025 21F 16F / 55% WSW 23 G 38 MPH 4600 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 29 11 AM Thu Mar 20 2025 22F 15F / 58% WSW 19 G 34 MPH 5200 FT 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 30 12 PM Thu Mar 20 2025 22F 15F / 66% W 20 G 34 MPH 4900 FT 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 31 01 PM Thu Mar 20 2025 21F 14F / 93% W 18 G 30 MPH 5300 FT 17:1 / 6% 0.01" / 0.2" 0.01" / 0.2" 32 02 PM Thu Mar 20 2025 22F 14F / 92% W 19 G 33 MPH 5300 FT 16:1 / 6% 0.01" / 0.2" 0.02" / 0.4" 33 03 PM Thu Mar 20 2025 21F 13F / 94% W 20 G 32 MPH 5100 FT 16:1 / 6% 0.01" / 0.2" 0.03" / 0.6" 34 04 PM Thu Mar 20 2025 20F 13F / 96% W 24 G 37 MPH 5300 FT 16:1 / 6% 0.04" / 0.6" 0.07" / 1.2" 35 05 PM Thu Mar 20 2025 20F 12F / 93% W 24 G 39 MPH 5600 FT 15:1 / 7% 0.02" / 0.3" 0.09" / 1.5" 36 06 PM Thu Mar 20 2025 19F 12F / 95% W 24 G 39 MPH 5300 FT 14:1 / 7% 0.00" / 0.0" 0.09" / 1.5" 37 07 PM Thu Mar 20 2025 18F 12F / 94% WNW 25 G 39 MPH 5400 FT 14:1 / 7% 0.00" / 0.0" 0.09" / 1.5" 38 08 PM Thu Mar 20 2025 17F 11F / 92% WNW 25 G 38 MPH 5200 FT 14:1 / 7% 0.00" / 0.0" 0.09" / 1.5" 39 09 PM Thu Mar 20 2025 15F 11F / 90% WNW 27 G 40 MPH 5200 FT 15:1 / 7% 0.00" / 0.0" 0.09" / 1.5" 40 10 PM Thu Mar 20 2025 13F 9F / 87% WNW 27 G 41 MPH 4600 FT 15:1 / 7% 0.00" / 0.0" 0.09" / 1.5" 41 11 PM Thu Mar 20 2025 12F 8F / 86% WNW 28 G 41 MPH 4400 FT 15:1 / 7% 0.00" / 0.0" 0.09" / 1.5" 42 12 AM Fri Mar 21 2025 12F 8F / 86% WNW 27 G 40 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.09" / 1.5" 43 01 AM Fri Mar 21 2025 12F 8F / 83% WNW 27 G 41 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.09" / 1.5" 44 02 AM Fri Mar 21 2025 12F 9F / 77% WNW 28 G 43 MPH ≤ KSLC 15:1 / 7% 0.00" / 0.0" 0.09" / 1.5" 45 03 AM Fri Mar 21 2025 12F 9F / 73% WNW 28 G 41 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.09" / 1.5" 46 04 AM Fri Mar 21 2025 12F 9F / 78% WNW 26 G 39 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.09" / 1.5" 47 05 AM Fri Mar 21 2025 13F 9F / 78% WNW 26 G 38 MPH ≤ KSLC 16:1 / 6% 0.00" / 0.0" 0.09" / 1.5" 48 06 AM Fri Mar 21 2025 13F 9F / 79% WNW 25 G 38 MPH ≤ KSLC 17:1 / 6% 0.00" / 0.0" 0.09" / 1.5"