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 19-May-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 Mon May 19 2025 24F 17F / 100% WNW 26 G 41 MPH 6700 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 1 01 AM Mon May 19 2025 23F 17F / 94% WNW 25 G 38 MPH 6300 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 2 02 AM Mon May 19 2025 22F 16F / 99% WNW 24 G 37 MPH 5900 FT 9:1 / 11% 0.00" / 0.0" 0.00" / 0.0" 3 03 AM Mon May 19 2025 21F 15F / 81% WNW 24 G 36 MPH 5800 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 4 04 AM Mon May 19 2025 20F 15F / 74% WNW 26 G 38 MPH 5700 FT 10:1 / 10% 0.00" / 0.0" 0.00" / 0.0" 5 05 AM Mon May 19 2025 19F 13F / 78% NW 27 G 41 MPH 5600 FT 11:1 / 9% 0.00" / 0.0" 0.00" / 0.0" 6 06 AM Mon May 19 2025 19F 13F / 87% WNW 22 G 33 MPH 5700 FT 12:1 / 8% 0.00" / 0.0" 0.00" / 0.0" 7 07 AM Mon May 19 2025 18F 12F / 95% WNW 15 G 22 MPH 5700 FT 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 8 08 AM Mon May 19 2025 19F 13F / 97% WNW 17 G 25 MPH 5600 FT 18:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 9 09 AM Mon May 19 2025 19F 13F / 100% WNW 20 G 27 MPH 5600 FT 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 10 10 AM Mon May 19 2025 20F 14F / 93% NW 20 G 30 MPH 6100 FT 16:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 11 11 AM Mon May 19 2025 23F 15F / 93% NW 18 G 31 MPH 6300 FT 17:1 / 6% 0.00" / 0.0" 0.00" / 0.0" 12 12 PM Mon May 19 2025 25F 17F / 89% NW 17 G 28 MPH 6500 FT 15:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 13 01 PM Mon May 19 2025 27F 18F / 92% NW 13 G 22 MPH 6600 FT 14:1 / 7% 0.00" / 0.0" 0.00" / 0.0" 14 02 PM Mon May 19 2025 28F 20F / 98% NW 13 G 22 MPH 6500 FT 12:1 / 8% 0.05" / 0.6" 0.05" / 0.6" 15 03 PM Mon May 19 2025 28F 19F / 100% WNW 11 G 19 MPH 6700 FT 12:1 / 8% 0.00" / 0.0" 0.05" / 0.6" 16 04 PM Mon May 19 2025 29F 19F / 96% WNW 12 G 22 MPH 6500 FT 13:1 / 8% 0.00" / 0.0" 0.05" / 0.6" 17 05 PM Mon May 19 2025 29F 19F / 86% WNW 14 G 23 MPH 6400 FT 12:1 / 8% 0.00" / 0.0" 0.05" / 0.6" 18 06 PM Mon May 19 2025 27F 19F / 79% WNW 17 G 27 MPH 6500 FT 11:1 / 9% 0.00" / 0.0" 0.05" / 0.6" 19 07 PM Mon May 19 2025 26F 19F / 72% WNW 23 G 33 MPH 6500 FT 9:1 / 11% 0.00" / 0.0" 0.05" / 0.6" 20 08 PM Mon May 19 2025 24F 19F / 65% WNW 27 G 41 MPH 6500 FT 8:1 / 12% 0.00" / 0.0" 0.05" / 0.6" 21 09 PM Mon May 19 2025 23F 19F / 63% WNW 30 G 43 MPH 6600 FT 8:1 / 12% 0.00" / 0.0" 0.05" / 0.6" 22 10 PM Mon May 19 2025 24F 20F / 62% WNW 32 G 46 MPH 6600 FT 7:1 / 14% 0.00" / 0.0" 0.05" / 0.6" 23 11 PM Mon May 19 2025 24F 21F / 64% WNW 32 G 47 MPH 6900 FT 8:1 / 12% 0.00" / 0.0" 0.05" / 0.6" 24 12 AM Tue May 20 2025 25F 21F / 67% WNW 33 G 50 MPH 7000 FT 7:1 / 14% 0.00" / 0.0" 0.05" / 0.6" 25 01 AM Tue May 20 2025 25F 22F / 74% WNW 33 G 50 MPH 7000 FT 7:1 / 14% 0.00" / 0.0" 0.05" / 0.6" 26 02 AM Tue May 20 2025 25F 22F / 74% WNW 31 G 47 MPH 6900 FT 8:1 / 12% 0.00" / 0.0" 0.05" / 0.6" 27 03 AM Tue May 20 2025 25F 22F / 71% WNW 31 G 46 MPH 6800 FT 8:1 / 12% 0.00" / 0.0" 0.05" / 0.6" 28 04 AM Tue May 20 2025 25F 22F / 71% WNW 29 G 43 MPH 7000 FT 8:1 / 12% 0.00" / 0.0" 0.05" / 0.6" 29 05 AM Tue May 20 2025 26F 22F / 73% WNW 27 G 40 MPH 7200 FT 8:1 / 12% 0.00" / 0.0" 0.05" / 0.6" 30 06 AM Tue May 20 2025 26F 22F / 73% WNW 25 G 37 MPH 7300 FT 7:1 / 14% 0.00" / 0.0" 0.05" / 0.6" 31 07 AM Tue May 20 2025 26F 23F / 80% WNW 23 G 33 MPH 7400 FT 9:1 / 11% 0.00" / 0.0" 0.05" / 0.6" 32 08 AM Tue May 20 2025 29F 24F / 77% WNW 23 G 31 MPH 7500 FT 9:1 / 11% 0.00" / 0.0" 0.05" / 0.6" 33 09 AM Tue May 20 2025 30F 25F / 82% WNW 20 G 30 MPH 7800 FT 9:1 / 11% 0.00" / 0.0" 0.05" / 0.6" 34 10 AM Tue May 20 2025 32F 26F / 81% WNW 17 G 27 MPH 8100 FT 10:1 / 10% 0.00" / 0.0" 0.05" / 0.6" 35 11 AM Tue May 20 2025 35F 27F / 81% W 15 G 23 MPH 8300 FT 11:1 / 9% 0.00" / 0.0" 0.05" / 0.6" 36 12 PM Tue May 20 2025 38F 28F / 77% W 17 G 26 MPH 8600 FT 9:1 / 11% 0.00" / 0.0" 0.05" / 0.6" 37 01 PM Tue May 20 2025 41F 32F / 66% W 17 G 28 MPH 8800 FT 9:1 / 11% 0.00" / 0.0" 0.05" / 0.6" 38 02 PM Tue May 20 2025 43F 33F / 59% W 16 G 25 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.05" / 0.6" 39 03 PM Tue May 20 2025 44F 34F / 57% W 17 G 29 MPH 9100 FT 9:1 / 11% 0.00" / 0.0" 0.05" / 0.6" 40 04 PM Tue May 20 2025 44F 35F / 66% W 16 G 27 MPH 9300 FT 9:1 / 11% 0.00" / 0.0" 0.05" / 0.6" 41 05 PM Tue May 20 2025 44F 35F / 63% W 17 G 28 MPH 9500 FT 10:1 / 10% 0.00" / 0.0" 0.05" / 0.6" 42 06 PM Tue May 20 2025 42F 36F / 64% W 17 G 28 MPH 9600 FT 9:1 / 11% 0.00" / 0.0" 0.05" / 0.6" 43 07 PM Tue May 20 2025 40F 35F / 64% W 18 G 31 MPH 9800 FT 9:1 / 11% 0.00" / 0.0" 0.05" / 0.6" 44 08 PM Tue May 20 2025 38F 35F / 65% W 22 G 34 MPH 9800 FT 8:1 / 12% 0.00" / 0.0" 0.05" / 0.6" 45 09 PM Tue May 20 2025 35F 33F / 64% W 23 G 38 MPH 9900 FT 7:1 / 14% 0.00" / 0.0" 0.05" / 0.6" 46 10 PM Tue May 20 2025 35F 33F / 58% W 23 G 37 MPH 9700 FT 9:1 / 11% 0.00" / 0.0" 0.05" / 0.6" 47 11 PM Tue May 20 2025 35F 33F / 57% W 23 G 34 MPH 9500 FT 11:1 / 9% 0.00" / 0.0" 0.05" / 0.6" 48 12 AM Wed May 21 2025 35F 33F / 58% W 23 G 35 MPH 9700 FT 10:1 / 10% 0.00" / 0.0" 0.05" / 0.6"