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 02-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 11 AM Sun Mar 02 2025 33F 27F / 43% S 13 G 28 MPH 6600 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 1 12 PM Sun Mar 02 2025 35F 27F / 42% S 14 G 31 MPH 6900 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 2 01 PM Sun Mar 02 2025 35F 27F / 44% S 12 G 29 MPH 7100 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 3 02 PM Sun Mar 02 2025 35F 26F / 45% S 12 G 30 MPH 7400 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 4 03 PM Sun Mar 02 2025 34F 27F / 47% S 11 G 29 MPH 7500 FT 8:1 / 12% 0.00" / 0.0" 0.00" / 0.0" 5 04 PM Sun Mar 02 2025 35F 27F / 45% S 11 G 26 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 6 05 PM Sun Mar 02 2025 32F 26F / 48% S 9 G 22 MPH 7600 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 7 06 PM Sun Mar 02 2025 29F 23F / 65% S 10 G 22 MPH 7500 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 8 07 PM Sun Mar 02 2025 27F 21F / 71% SSW 12 G 26 MPH 7200 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 9 08 PM Sun Mar 02 2025 24F 18F / 89% S 17 G 37 MPH 6800 FT 10:1 / 10% 0.03" / 0.3" 0.03" / 0.3" 10 09 PM Sun Mar 02 2025 23F 17F / 88% SSW 12 G 30 MPH 6300 FT 10:1 / 10% 0.03" / 0.3" 0.06" / 0.6" 11 10 PM Sun Mar 02 2025 23F 16F / 70% S 15 G 38 MPH 5500 FT 10:1 / 10% 0.00" / 0.0" 0.06" / 0.6" 12 11 PM Sun Mar 02 2025 20F 15F / 67% S 14 G 35 MPH 5600 FT 10:1 / 10% 0.00" / 0.0" 0.06" / 0.6" 13 12 AM Mon Mar 03 2025 19F 15F / 70% SSE 14 G 31 MPH 5400 FT 11:1 / 9% 0.00" / 0.0" 0.06" / 0.6" 14 01 AM Mon Mar 03 2025 19F 14F / 76% SE 13 G 28 MPH 5300 FT 14:1 / 7% 0.00" / 0.0" 0.06" / 0.6" 15 02 AM Mon Mar 03 2025 18F 13F / 89% SE 9 G 22 MPH 5000 FT 12:1 / 8% 0.02" / 0.2" 0.08" / 0.8" 16 03 AM Mon Mar 03 2025 19F 14F / 89% SE 13 G 31 MPH 5200 FT 13:1 / 8% 0.01" / 0.1" 0.09" / 0.9" 17 04 AM Mon Mar 03 2025 19F 13F / 89% SE 14 G 29 MPH 5000 FT 12:1 / 8% 0.00" / 0.0" 0.09" / 0.9" 18 05 AM Mon Mar 03 2025 18F 12F / 92% SE 9 G 20 MPH 4900 FT 15:1 / 7% 0.00" / 0.0" 0.09" / 0.9" 19 06 AM Mon Mar 03 2025 18F 11F / 92% SE 8 G 18 MPH 4900 FT 16:1 / 6% 0.01" / 0.2" 0.10" / 1.1" 20 07 AM Mon Mar 03 2025 16F 12F / 89% SE 10 G 21 MPH 4900 FT 15:1 / 7% 0.02" / 0.3" 0.12" / 1.4" 21 08 AM Mon Mar 03 2025 16F 10F / 91% SE 6 G 14 MPH 5000 FT 18:1 / 6% 0.01" / 0.2" 0.13" / 1.6" 22 09 AM Mon Mar 03 2025 17F 11F / 92% SE 3 G 6 MPH 4800 FT 19:1 / 5% 0.00" / 0.0" 0.13" / 1.6" 23 10 AM Mon Mar 03 2025 20F 12F / 85% N 4 G 8 MPH 4800 FT 22:1 / 5% 0.00" / 0.0" 0.13" / 1.6" 24 11 AM Mon Mar 03 2025 22F 13F / 91% NW 7 G 11 MPH 5000 FT 19:1 / 5% 0.00" / 0.0" 0.13" / 1.6" 25 12 PM Mon Mar 03 2025 22F 13F / 94% NW 10 G 17 MPH 5100 FT 18:1 / 6% 0.01" / 0.2" 0.14" / 1.8" 26 01 PM Mon Mar 03 2025 23F 14F / 96% NW 17 G 27 MPH 5100 FT 15:1 / 7% 0.03" / 0.4" 0.17" / 2.2" 27 02 PM Mon Mar 03 2025 22F 14F / 93% NW 16 G 30 MPH 5300 FT 14:1 / 7% 0.05" / 0.7" 0.22" / 2.9" 28 03 PM Mon Mar 03 2025 23F 14F / 93% NW 19 G 31 MPH 5400 FT 14:1 / 7% 0.06" / 0.8" 0.28" / 3.7" 29 04 PM Mon Mar 03 2025 23F 13F / 96% NW 20 G 33 MPH 5500 FT 12:1 / 8% 0.10" / 1.2" 0.38" / 4.9" 30 05 PM Mon Mar 03 2025 21F 13F / 95% NW 23 G 36 MPH 5900 FT 11:1 / 9% 0.12" / 1.3" 0.50" / 6.2" 31 06 PM Mon Mar 03 2025 20F 13F / 97% NW 26 G 42 MPH 6300 FT 11:1 / 9% 0.12" / 1.3" 0.62" / 7.5" 32 07 PM Mon Mar 03 2025 21F 14F / 92% NW 22 G 38 MPH 6000 FT 12:1 / 8% 0.04" / 0.5" 0.66" / 8.0" 33 08 PM Mon Mar 03 2025 21F 14F / 87% NW 22 G 37 MPH 5800 FT 13:1 / 8% 0.01" / 0.1" 0.67" / 8.1" 34 09 PM Mon Mar 03 2025 20F 14F / 86% NW 22 G 36 MPH 5900 FT 13:1 / 8% 0.00" / 0.0" 0.67" / 8.1" 35 10 PM Mon Mar 03 2025 19F 14F / 81% NW 24 G 36 MPH 5900 FT 13:1 / 8% 0.00" / 0.0" 0.67" / 8.1" 36 11 PM Mon Mar 03 2025 19F 14F / 83% NW 24 G 36 MPH 5800 FT 11:1 / 9% 0.00" / 0.0" 0.67" / 8.1" 37 12 AM Tue Mar 04 2025 19F 14F / 95% NW 23 G 33 MPH 5800 FT 10:1 / 10% 0.00" / 0.0" 0.67" / 8.1" 38 01 AM Tue Mar 04 2025 18F 13F / 96% NW 21 G 32 MPH 5800 FT 15:1 / 7% 0.00" / 0.0" 0.67" / 8.1" 39 02 AM Tue Mar 04 2025 19F 14F / 91% NW 20 G 27 MPH 5900 FT 14:1 / 7% 0.00" / 0.0" 0.67" / 8.1" 40 03 AM Tue Mar 04 2025 20F 15F / 96% NW 23 G 32 MPH 5900 FT 14:1 / 7% 0.04" / 0.6" 0.71" / 8.7" 41 04 AM Tue Mar 04 2025 20F 14F / 91% NW 23 G 32 MPH 5900 FT 12:1 / 8% 0.04" / 0.5" 0.75" / 9.2" 42 05 AM Tue Mar 04 2025 19F 14F / 89% NW 25 G 37 MPH 5700 FT 14:1 / 7% 0.00" / 0.0" 0.75" / 9.2" 43 06 AM Tue Mar 04 2025 18F 14F / 92% NW 22 G 32 MPH 5500 FT 13:1 / 8% 0.00" / 0.0" 0.75" / 9.2" 44 07 AM Tue Mar 04 2025 18F 13F / 98% NW 23 G 34 MPH 5400 FT 13:1 / 8% 0.00" / 0.0" 0.75" / 9.2" 45 08 AM Tue Mar 04 2025 18F 13F / 96% NW 22 G 33 MPH 5300 FT 17:1 / 6% 0.00" / 0.0" 0.75" / 9.2" 46 09 AM Tue Mar 04 2025 19F 13F / 94% NW 21 G 34 MPH 5300 FT 14:1 / 7% 0.00" / 0.0" 0.75" / 9.2" 47 10 AM Tue Mar 04 2025 21F 14F / 92% NW 19 G 31 MPH 5500 FT 16:1 / 6% 0.00" / 0.0" 0.75" / 9.2" 48 11 AM Tue Mar 04 2025 22F 14F / 92% NW 18 G 30 MPH 5500 FT 18:1 / 6% 0.00" / 0.0" 0.75" / 9.2"