Supercell over Laramie
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Wyoming Snow Precipitation Update

United States Natural Resources Water and Climate Center Department of Conservation Portland, Oregon Agriculture Service S N O W - P R E C I P I T A T I O N U P D A T E Based on Mountain Data from NRCS SNOTEL Sites As of FRIDAY: JANUARY 22 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 14.1 11.1 127 16.1 14.7 110 COTTONWOOD CREEK 7600 13.0 12.5 104 16.0 15.6 103 GRANITE CREEK 6770 11.2 10.8 104 13.2 15.5 85 GRASSY LAKE 7265 24.2 20.4 119 24.6 23.8 103 GROS VENTRE SUMMIT 8775 8.5 9.5 89 8.7 10.4 84 LEWIS LAKE DIVIDE 7860 23.0 20.1 114 24.2 24.2 100 PHILLIPS BENCH 8200 17.7 17.0 104 17.2 19.0 91 SALT RIVER SUMMIT 7600 8.0 7.8 103 10.3 11.1 93 SNAKE RIVER STATION 6920 13.3 11.0 121 16.2 16.7 97 SPRING CREEK DIVIDE 9000 15.8 16.1 98 16.2 17.4 93 THUMB DIVIDE 7980 -M 10.2 * -M 13.8 * TOGWOTEE PASS 9580 -M 15.1 * 18.4 18.1 102 TWO OCEAN PLATEAU 9360 22.5 16.5 136 19.7 20.2 98 WILLOW CREEK 8450 17.7 18.5 96 22.6 20.5 110 ----- ----- Basin wide percent of average 110 98 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 17.8 14.6 122 16.1 10.9 148 BLACK BEAR 7950 28.8 21.7 133 -M 23.5 * CANYON 7940 11.3 7.4 153 12.2 8.9 137 FISHER CREEK 9100 26.0 21.6 120 23.2 21.8 106 MADISON PLATEAU 7750 -M 14.3 * 17.9 15.5 115 NORTHEAST ENTRANCE 7350 7.8 5.7 137 9.7 7.5 129 PARKER PEAK 9400 15.3 13.2 116 -M 9.6 * SYLVAN LAKE 8420 17.1 13.7 125 19.6 12.1 162 THUMB DIVIDE 7980 -M 10.2 * -M 13.8 * TWO OCEAN PLATEAU 9360 22.5 16.5 136 19.7 20.2 98 WHISKEY CREEK 6800 12.1 9.9 122 14.7 12.9 114 WHITE MILL 8700 17.0 15.2 112 15.5 17.2 90 WOLVERINE 7650 10.8 7.1 152 9.0 8.0 112 ----- ----- Basin wide percent of average 127 117 WIND RIVER BURROUGHS CREEK 8750 10.8 9.4 115 11.8 10.3 115 COLD SPRINGS 9630 6.2 5.4 115 7.7 6.4 120 DEER PARK 9700 9.1 -M * 12.7 -M * HOBBS PARK 10100 9.5 9.4 101 9.5 8.5 112 LITTLE WARM 9620 8.2 6.6 124 9.3 8.2 113 SOUTH PASS 9040 10.2 10.4 98 11.7 9.9 118 ST. LAWRENCE ALT 8620 4.3 4.3 100 7.0 5.9 119 TOGWOTEE PASS 9580 -M 15.1 * 18.4 18.1 102 TOWNSEND CREEK 8700 5.0 5.7 88 7.6 7.2 106 ----- ----- Basin wide percent of average 106 111 BIGHORN BASIN BALD MTN. 9375 13.4 12.7 106 12.5 10.7 117 BEAR TRAP MEADOW 7900 4.3 4.4 98 7.0 5.0 140 BLACKWATER 9780 19.4 12.8 152 17.0 11.1 153 BONE SPRINGS DIV 9350 10.2 9.8 104 10.4 8.6 121 EVENING STAR 9200 22.4 16.4 137 23.2 13.8 168 GRAVE SPRINGS 8550 4.7 5.6 84 7.7 6.0 128 KIRWIN 9550 7.9 6.2 127 9.0 6.3 143 MARQUETTE 8760 5.4 4.7 115 6.3 5.4 117 MIDDLE POWDER 7760 4.8 7.2 67 10.8 7.2 150 OWL CREEK 8975 3.7 2.6 142 4.4 3.5 126 POWDER RIVER PASS 9480 8.0 6.4 125 10.0 7.1 141 SHELL CREEK 9580 11.5 9.4 122 10.7 8.1 132 SYLVAN LAKE 8420 17.1 13.7 125 19.6 12.1 162 SYLVAN ROAD 8120 11.5 7.6 151 13.4 10.1 133 TIMBER CREEK 7950 3.5 3.2 109 5.4 3.9 138 YOUNTS PEAK 8350 14.0 11.2 125 12.2 10.2 120 ----- ----- Basin wide percent of average 121 139 SHOSHONE RIVER BLACKWATER 9780 19.4 12.8 152 17.0 11.1 153 EVENING STAR 9200 22.4 16.4 137 23.2 13.8 168 KIRWIN 9550 7.9 6.2 127 9.0 6.3 143 MARQUETTE 8760 5.4 4.7 115 6.3 5.4 117 SYLVAN LAKE 8420 17.1 13.7 125 19.6 12.1 162 SYLVAN ROAD 8120 11.5 7.6 151 13.4 10.1 133 YOUNTS PEAK 8350 14.0 11.2 125 12.2 10.2 120 ----- ----- Basin wide percent of average 135 146 POWDER-TONGUE BEAR TRAP MEADOW 7900 4.3 4.4 98 7.0 5.0 140 BIG GOOSE 7990 3.5 -M * 6.4 -M * BONE SPRINGS DIV 9350 10.2 9.8 104 10.4 8.6 121 BURGESS JUNCTION 7880 5.0 7.0 71 7.0 6.6 106 CLOUD PEAK RESERVOIR 9860 9.2 7.2 128 7.2 7.5 96 DOME LAKE 8880 5.2 8.2 63 7.1 8.1 88 GRAVE SPRINGS 8550 4.7 5.6 84 7.7 6.0 128 HANSEN SAWMILL 8760 3.3 4.2 79 5.6 4.6 122 MIDDLE POWDER 7760 4.8 7.2 67 10.8 7.2 150 POWDER RIVER PASS 9480 8.0 6.4 125 10.0 7.1 141 SUCKER CREEK 8880 6.4 6.7 96 8.4 7.9 106 TIE CREEK 6870 2.1 -M * 5.7 6.3 90 ----- ----- Basin wide percent of average 92 116 BELLE FOURCHE BLIND PARK 6890 4.9 6.6 74 12.0 5.7 211 NORTH RAPID CREEK 6130 3.8 -M * 10.4 -M * WARREN PEAK 6520 5.8 6.6 88 10.8 4.8 225 ----- ----- Basin wide percent of average 81 217 UPPER N. PLATTE RIVER COLUMBINE 9400 12.8 14.0 91 14.3 14.6 98 DIVIDE PEAK 8800 11.2 12.2 92 16.8 14.7 114 ELK RIVER 8700 -M 11.1 * 14.6 11.3 129 JOE WRIGHT 10120 12.8 12.9 99 17.9 14.9 120 NORTH FRENCH CREEK 10100 17.8 14.6 122 18.9 13.7 138 OLD BATTLE 10000 16.1 18.7 86 22.2 17.7 125 SOUTH BRUSH CREEK 8400 5.8 6.4 91 13.7 10.4 132 TOWER 10500 25.5 26.8 95 25.1 21.7 116 WEBBER SPRINGS 9200 11.6 15.8 73 16.5 15.5 106 WILLOW CREEK PASS 9540 6.5 6.8 96 8.2 7.3 112 ----- ----- Basin wide percent of average 94 119 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 12.2 14.8 82 14.7 11.0 134 CASPER MTN. 7900 5.0 8.7 57 10.6 8.1 131 DEADMAN HILL 10220 10.7 10.2 105 12.3 9.4 131 DEER PARK 9700 9.1 -M * 12.7 -M * LAPRELE CREEK 8320 1.9 6.0 32 8.5 6.8 125 RENO HILL 8400 7.1 7.7 92 11.4 10.9 105 ROACH 9700 11.0 10.0 110 13.8 12.9 107 SAND LAKE 10080 19.7 19.3 102 19.0 11.8 161 SOUTH PASS 9040 10.2 10.4 98 11.7 9.9 118 WINDY PEAK 7840 2.7 4.0 68 8.2 5.3 155 ----- ----- Basin wide percent of average 88 128 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 6.3 6.6 95 11.0 9.8 112 DIVIDE PEAK 8800 11.2 12.2 92 16.8 14.7 114 OLD BATTLE 10000 16.1 18.7 86 22.2 17.7 125 SANDSTONE RS 8150 6.7 8.4 80 13.1 11.9 110 WHISKEY PARK 8950 14.9 16.7 89 19.2 17.4 110 ----- ----- Basin wide percent of average 88 115 UPPER GREEN RIVER BIG SANDY OPENING 9100 9.5 8.5 112 8.9 10.7 83 BLIND BULL SUM 8650 16.3 17.1 95 13.6 14.9 91 EAST RIM DIVIDE 7930 7.7 8.2 94 8.1 10.0 81 ELKHART PARK G.S. 9400 7.7 8.0 96 8.4 10.5 80 GROS VENTRE SUMMIT 8775 8.5 9.5 89 8.7 10.4 84 KENDALL R.S. 7740 8.5 8.8 97 9.1 10.2 89 LOOMIS PARK 8240 9.5 10.2 93 11.7 12.4 94 NEW FORK LAKE 8340 6.9 6.9 100 7.2 9.5 76 SNIDER BASIN 8250 8.2 8.7 94 8.9 10.0 89 SPRING CREEK DIVIDE 9000 15.8 16.1 98 16.2 17.4 93 TRIPLE PEAK 8500 15.0 15.4 97 16.8 20.4 82 ----- ----- Basin wide percent of average 97 86 LOWER GREEN RIVER HAMS FORK 7840 6.6 7.0 94 6.4 8.8 73 HEWINTA 9500 5.2 5.6 93 7.9 7.8 101 HICKERSON PARK 9150 3.1 3.2 97 5.7 5.6 102 HOLE-IN-ROCK 9150 3.8 2.9 131 6.3 5.6 113 INDIAN CREEK 9425 14.8 16.1 92 12.8 16.5 78 KELLEY R.S. 8180 8.9 9.5 94 10.6 12.3 86 STEEL CREEK PARK 10100 7.4 9.0 82 9.4 8.0 118 ----- ----- Basin wide percent of average 93 91 UPPER BEAR RIVER BUG LAKE 7950 8.8 11.7 75 10.3 11.7 88 HAYDEN FORK 9400 7.7 9.3 83 11.1 10.9 102 KELLEY R.S. 8180 8.9 9.5 94 10.6 12.3 86 LILY LAKE 9050 7.3 7.6 96 10.4 8.8 118 MONTE CRISTO 8960 13.2 15.5 85 14.6 15.1 97 SALT RIVER SUMMIT 7600 8.0 7.8 103 10.3 11.1 93 TRIAL LAKE 9960 9.5 14.5 66 10.6 13.8 77 ----- ----- Basin wide percent of average 84 93 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. If the Basin wide percent of average value is flagged as potentially invalid, care should be taken to evaluate if the value is representative of conditions in the basin. The SNOW WATER EQUIVALENT Percent of Average represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the average value for those sites on this day. The TOTAL PRECIPITATION Percent of Average represents the total precipitation (beginning October 1st) found at selected SNOTEL sites in or near the basin compared to the average value for those sites on this day. Contact your state water supply staff for assistance. Reference period for average conditions is 1961-90. Provisional data, subject to revision. ---------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Normal Snow Water Equivalent and Total Precipitation values If the Basin Index (%) value is flagged as potentially invalid, care should be taken to evaluate if the value is representative of conditions in the basin. The SNOW WATER EQUIVALENT Percent of Median represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the Median value for those sites on this day. The TOTAL PRECIPITATION Percent of Average represents the total precipitation (beginning October 1st) found at selected SNOTEL sites in or near the basin compared to the Average value for those sites on this day. Contact your state water supply staff for assistance. Medians and averages are calculated for the period 1981-2010. Provisional data, subject to revision. * Site -- Either: (a) the current value is missing; (b) the median or average for the day is not available or is zero; or (c) for snow water equivalent, the median for the day is less than 10% of the maximum median value for the year. * Basin - More than half of the sites within the basin are flagged with *, preventing the calculation of a meaningful basin index. The basin index is calculated as the sum of the valid current values divided by the sum of the corresponding medians (for snow water equivalent) or averages (for precipitation) and the resulting fraction multiplied by 100.