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 06Z 12-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 12 AM Wed Mar 12 2025 25F 21F / 58% SSW 20 G 36 MPH 7200 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Wed Mar 12 2025 24F 20F / 65% SSW 20 G 36 MPH 7100 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Wed Mar 12 2025 22F 20F / 65% SW 19 G 33 MPH 6900 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Wed Mar 12 2025 22F 20F / 56% SW 18 G 31 MPH 6500 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Wed Mar 12 2025 21F 20F / 54% SSW 16 G 25 MPH 6000 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Wed Mar 12 2025 22F 20F / 58% S 15 G 24 MPH 5900 FT 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Wed Mar 12 2025 21F 20F / 64% SSE 15 G 24 MPH 6000 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Wed Mar 12 2025 21F 19F / 68% SSE 12 G 20 MPH 6200 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Wed Mar 12 2025 20F 18F / 72% SSE 14 G 23 MPH 6100 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Wed Mar 12 2025 22F 19F / 75% SSE 17 G 30 MPH 6300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Wed Mar 12 2025 24F 20F / 79% SSE 19 G 36 MPH 6300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Wed Mar 12 2025 25F 21F / 79% SSE 20 G 40 MPH 6400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Wed Mar 12 2025 28F 22F / 76% SSE 21 G 40 MPH 6700 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Wed Mar 12 2025 30F 23F / 64% SSE 18 G 34 MPH 6900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Wed Mar 12 2025 30F 24F / 65% SSE 16 G 35 MPH 7100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 15 03 PM Wed Mar 12 2025 31F 25F / 60% SSE 17 G 39 MPH 7300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 16 04 PM Wed Mar 12 2025 30F 24F / 72% S 18 G 40 MPH 7400 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 17 05 PM Wed Mar 12 2025 31F 25F / 72% S 18 G 40 MPH 7500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 18 06 PM Wed Mar 12 2025 31F 24F / 74% S 19 G 41 MPH 7800 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 19 07 PM Wed Mar 12 2025 28F 23F / 74% S 22 G 48 MPH 7800 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 20 08 PM Wed Mar 12 2025 26F 22F / 66% S 25 G 54 MPH 7400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 21 09 PM Wed Mar 12 2025 26F 21F / 74% S 27 G 56 MPH 7300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 22 10 PM Wed Mar 12 2025 27F 21F / 74% SSW 27 G 56 MPH 7300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 23 11 PM Wed Mar 12 2025 26F 20F / 85% SSW 27 G 54 MPH 7200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 24 12 AM Thu Mar 13 2025 27F 20F / 95% S 25 G 53 MPH 7300 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 25 01 AM Thu Mar 13 2025 27F 19F / 100% S 25 G 52 MPH 7300 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 26 02 AM Thu Mar 13 2025 27F 19F / 100% S 26 G 53 MPH 7200 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 27 03 AM Thu Mar 13 2025 26F 19F / 100% S 28 G 57 MPH 7100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 28 04 AM Thu Mar 13 2025 26F 18F / 100% S 25 G 53 MPH 7100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 29 05 AM Thu Mar 13 2025 26F 19F / 100% S 23 G 46 MPH 7200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 30 06 AM Thu Mar 13 2025 26F 18F / 99% S 22 G 45 MPH 7100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 31 07 AM Thu Mar 13 2025 25F 18F / 98% S 22 G 46 MPH 7100 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 32 08 AM Thu Mar 13 2025 26F 18F / 98% SSE 20 G 42 MPH 7000 FT 9:1 / 11% 0.01" / 0.1" 0.01" / 0.1" 33 09 AM Thu Mar 13 2025 26F 19F / 97% SSE 17 G 42 MPH 7000 FT 9:1 / 11% 0.05" / 0.4" 0.06" / 0.5" 34 10 AM Thu Mar 13 2025 27F 19F / 99% SSE 18 G 42 MPH 6900 FT 10:1 / 10% 0.06" / 0.6" 0.12" / 1.1" 35 11 AM Thu Mar 13 2025 27F 19F / 96% S 17 G 40 MPH 6900 FT 10:1 / 10% 0.09" / 0.9" 0.21" / 2.0" 36 12 PM Thu Mar 13 2025 28F 19F / 97% S 18 G 42 MPH 6900 FT 11:1 / 9% 0.09" / 1.0" 0.30" / 3.0" 37 01 PM Thu Mar 13 2025 28F 19F / 95% SSE 19 G 45 MPH 7100 FT 10:1 / 10% 0.00" / 0.0" 0.30" / 3.0" 38 02 PM Thu Mar 13 2025 29F 21F / 92% SSE 16 G 39 MPH 7400 FT 11:1 / 9% 0.04" / 0.4" 0.34" / 3.4" 39 03 PM Thu Mar 13 2025 28F 22F / 90% S 17 G 40 MPH 7300 FT 10:1 / 10% 0.04" / 0.4" 0.38" / 3.8" 40 04 PM Thu Mar 13 2025 29F 21F / 94% S 18 G 43 MPH 7400 FT 10:1 / 10% 0.06" / 0.6" 0.44" / 4.4" 41 05 PM Thu Mar 13 2025 29F 21F / 94% SSW 17 G 34 MPH 6900 FT 12:1 / 8% 0.12" / 1.4" 0.56" / 5.8" 42 06 PM Thu Mar 13 2025 27F 18F / 94% SSW 21 G 44 MPH 6700 FT 10:1 / 10% 0.21" / 2.1" 0.77" / 7.9" 43 07 PM Thu Mar 13 2025 25F 18F / 93% SSW 20 G 41 MPH 5800 FT 10:1 / 10% 0.01" / 0.1" 0.78" / 8.0" 44 08 PM Thu Mar 13 2025 23F 16F / 94% W 21 G 35 MPH 5600 FT 12:1 / 8% 0.12" / 1.4" 0.90" / 9.4" 45 09 PM Thu Mar 13 2025 22F 15F / 93% W 17 G 34 MPH 4700 FT 15:1 / 7% 0.12" / 1.8" 1.02" / 11.2" 46 10 PM Thu Mar 13 2025 20F 12F / 96% W 14 G 26 MPH 4600 FT 17:1 / 6% 0.08" / 1.4" 1.10" / 12.6" 47 11 PM Thu Mar 13 2025 18F 12F / 95% WNW 14 G 32 MPH 4400 FT 15:1 / 7% 0.06" / 0.9" 1.16" / 13.5" 48 12 AM Fri Mar 14 2025 16F 10F / 97% WNW 18 G 34 MPH 4300 FT 17:1 / 6% 0.05" / 0.8" 1.21" / 14.3"