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 00Z 06-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 05 PM Wed Mar 05 2025 25F 18F / 100% S 16 G 34 MPH 6300 FT 7:1 / 14% 0.00" / 0.0" 0.00" / 0.0" 1 06 PM Wed Mar 05 2025 26F 19F / 100% S 19 G 40 MPH 6600 FT 6:1 / 17% 0.08" / 0.5" 0.08" / 0.5" 2 07 PM Wed Mar 05 2025 26F 19F / 100% S 20 G 41 MPH 6900 FT 7:1 / 14% 0.03" / 0.2" 0.11" / 0.7" 3 08 PM Wed Mar 05 2025 27F 20F / 100% S 20 G 41 MPH 7500 FT 8:1 / 12% 0.05" / 0.4" 0.16" / 1.1" 4 09 PM Wed Mar 05 2025 27F 21F / 100% SSE 19 G 40 MPH 7200 FT 9:1 / 11% 0.07" / 0.6" 0.23" / 1.7" 5 10 PM Wed Mar 05 2025 27F 20F / 99% S 20 G 42 MPH 7200 FT 9:1 / 11% 0.05" / 0.4" 0.28" / 2.1" 6 11 PM Wed Mar 05 2025 27F 21F / 98% S 22 G 43 MPH 7200 FT 8:1 / 12% 0.07" / 0.6" 0.35" / 2.7" 7 12 AM Thu Mar 06 2025 27F 21F / 96% S 21 G 43 MPH 7100 FT 8:1 / 12% 0.08" / 0.6" 0.43" / 3.3" 8 01 AM Thu Mar 06 2025 28F 20F / 100% S 24 G 48 MPH 7100 FT 7:1 / 14% 0.07" / 0.5" 0.50" / 3.8" 9 02 AM Thu Mar 06 2025 27F 20F / 98% S 26 G 49 MPH 6900 FT 8:1 / 12% 0.07" / 0.6" 0.57" / 4.4" 10 03 AM Thu Mar 06 2025 27F 20F / 98% S 24 G 48 MPH 6800 FT 7:1 / 14% 0.08" / 0.6" 0.65" / 5.0" 11 04 AM Thu Mar 06 2025 27F 20F / 100% S 24 G 46 MPH 6800 FT 8:1 / 12% 0.10" / 0.8" 0.75" / 5.8" 12 05 AM Thu Mar 06 2025 26F 20F / 99% S 21 G 41 MPH 6700 FT 8:1 / 12% 0.11" / 0.9" 0.86" / 6.7" 13 06 AM Thu Mar 06 2025 26F 19F / 98% SSW 20 G 41 MPH 6500 FT 7:1 / 14% 0.11" / 0.8" 0.97" / 7.5" 14 07 AM Thu Mar 06 2025 25F 18F / 97% S 19 G 35 MPH 6300 FT 8:1 / 12% 0.08" / 0.6" 1.05" / 8.1" 15 08 AM Thu Mar 06 2025 24F 18F / 99% SSW 17 G 32 MPH 6200 FT 11:1 / 9% 0.07" / 0.8" 1.12" / 8.9" 16 09 AM Thu Mar 06 2025 25F 17F / 98% S 15 G 32 MPH 6200 FT 12:1 / 8% 0.05" / 0.6" 1.17" / 9.5" 17 10 AM Thu Mar 06 2025 25F 18F / 100% S 13 G 27 MPH 6200 FT 10:1 / 10% 0.04" / 0.4" 1.21" / 9.9" 18 11 AM Thu Mar 06 2025 26F 18F / 95% SW 10 G 21 MPH 6400 FT 12:1 / 8% 0.02" / 0.2" 1.23" / 10.1" 19 12 PM Thu Mar 06 2025 27F 19F / 91% SSW 8 G 17 MPH 6400 FT 13:1 / 8% 0.01" / 0.1" 1.24" / 10.2" 20 01 PM Thu Mar 06 2025 27F 19F / 87% S 12 G 22 MPH 6400 FT 13:1 / 8% 0.01" / 0.1" 1.25" / 10.3" 21 02 PM Thu Mar 06 2025 26F 19F / 83% S 15 G 35 MPH 6400 FT 12:1 / 8% 0.03" / 0.4" 1.28" / 10.7" 22 03 PM Thu Mar 06 2025 26F 17F / 90% SSW 15 G 34 MPH 6600 FT 11:1 / 9% 0.02" / 0.2" 1.30" / 10.9" 23 04 PM Thu Mar 06 2025 23F 15F / 86% SSW 14 G 32 MPH 6500 FT 12:1 / 8% 0.03" / 0.4" 1.33" / 11.3" 24 05 PM Thu Mar 06 2025 22F 13F / 65% S 16 G 33 MPH 6100 FT 14:1 / 7% 0.01" / 0.1" 1.34" / 11.4" 25 06 PM Thu Mar 06 2025 19F 12F / 83% SSW 16 G 36 MPH 5800 FT 13:1 / 8% 0.00" / 0.0" 1.34" / 11.4" 26 07 PM Thu Mar 06 2025 19F 12F / 73% SSW 15 G 32 MPH 5500 FT 13:1 / 8% 0.00" / 0.0" 1.34" / 11.4" 27 08 PM Thu Mar 06 2025 19F 11F / 86% S 17 G 31 MPH 5100 FT 15:1 / 7% 0.01" / 0.2" 1.35" / 11.6" 28 09 PM Thu Mar 06 2025 17F 11F / 88% WSW 14 G 25 MPH 5300 FT 15:1 / 7% 0.08" / 1.2" 1.43" / 12.8" 29 10 PM Thu Mar 06 2025 16F 10F / 96% W 16 G 27 MPH 5200 FT 16:1 / 6% 0.06" / 1.0" 1.49" / 13.8" 30 11 PM Thu Mar 06 2025 16F 9F / 96% W 16 G 26 MPH 5100 FT 16:1 / 6% 0.03" / 0.5" 1.52" / 14.3" 31 12 AM Fri Mar 07 2025 16F 10F / 97% W 15 G 24 MPH 5100 FT 17:1 / 6% 0.01" / 0.2" 1.53" / 14.5" 32 01 AM Fri Mar 07 2025 16F 10F / 96% W 15 G 24 MPH 5100 FT 16:1 / 6% 0.02" / 0.3" 1.55" / 14.8" 33 02 AM Fri Mar 07 2025 16F 10F / 96% W 14 G 21 MPH 5000 FT 16:1 / 6% 0.02" / 0.3" 1.57" / 15.1" 34 03 AM Fri Mar 07 2025 16F 10F / 96% WSW 14 G 21 MPH 5000 FT 18:1 / 6% 0.02" / 0.4" 1.59" / 15.5" 35 04 AM Fri Mar 07 2025 16F 9F / 95% WSW 15 G 25 MPH 4700 FT 17:1 / 6% 0.02" / 0.3" 1.61" / 15.8" 36 05 AM Fri Mar 07 2025 16F 10F / 93% W 15 G 24 MPH 4600 FT 16:1 / 6% 0.03" / 0.5" 1.64" / 16.3" 37 06 AM Fri Mar 07 2025 15F 10F / 95% W 14 G 21 MPH 4600 FT 18:1 / 6% 0.03" / 0.5" 1.67" / 16.8" 38 07 AM Fri Mar 07 2025 14F 8F / 96% W 12 G 19 MPH 4400 FT 18:1 / 6% 0.02" / 0.4" 1.69" / 17.2" 39 08 AM Fri Mar 07 2025 15F 10F / 97% WNW 11 G 18 MPH 4300 FT 19:1 / 5% 0.01" / 0.2" 1.70" / 17.4" 40 09 AM Fri Mar 07 2025 17F 11F / 91% W 9 G 16 MPH 4500 FT 19:1 / 5% 0.01" / 0.2" 1.71" / 17.6" 41 10 AM Fri Mar 07 2025 19F 12F / 91% NNW 6 G 10 MPH 4600 FT 22:1 / 5% 0.00" / 0.0" 1.71" / 17.6" 42 11 AM Fri Mar 07 2025 20F 14F / 91% NNW 4 G 10 MPH 4500 FT 22:1 / 5% 0.00" / 0.0" 1.71" / 17.6" 43 12 PM Fri Mar 07 2025 22F 15F / 90% ENE 4 G 10 MPH 4600 FT 20:1 / 5% 0.01" / 0.2" 1.72" / 17.8" 44 01 PM Fri Mar 07 2025 22F 15F / 93% ENE 4 G 10 MPH 4500 FT 21:1 / 5% 0.00" / 0.0" 1.72" / 17.8" 45 02 PM Fri Mar 07 2025 23F 15F / 95% NE 8 G 14 MPH 4600 FT 19:1 / 5% 0.00" / 0.0" 1.72" / 17.8" 46 03 PM Fri Mar 07 2025 23F 15F / 92% NW 12 G 19 MPH 4700 FT 17:1 / 6% 0.01" / 0.2" 1.73" / 18.0" 47 04 PM Fri Mar 07 2025 21F 14F / 90% NNW 11 G 20 MPH 4800 FT 15:1 / 7% 0.01" / 0.2" 1.74" / 18.2" 48 05 PM Fri Mar 07 2025 18F 11F / 94% NNW 14 G 23 MPH 5000 FT 17:1 / 6% 0.01" / 0.2" 1.75" / 18.4"