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 MONDAY: MARCH 24 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 29.6 17.3 171 33.9 22.1 153 COTTONWOOD CREEK 7600 30.1 23.1 130 31.8 24.8 128 GRANITE CREEK 6770 28.0 18.0 156 32.5 23.3 139 GRASSY LAKE 7265 44.7 34.7 129 51.3 36.7 140 GROS VENTRE SUMMIT 8775 21.6 15.1 143 20.3 15.8 128 LEWIS LAKE DIVIDE 7860 51.8 34.3 151 46.3 37.2 124 PHILLIPS BENCH 8200 41.2 28.3 146 44.6 29.4 152 SALT RIVER SUMMIT 7600 21.6 13.9 155 23.3 16.7 140 SNAKE RIVER STATION 6920 27.1 18.3 148 35.6 25.7 139 SPRING CREEK DIVIDE 9000 34.0 27.1 125 32.2 27.1 119 THUMB DIVIDE 7980 30.9 16.5 187 -M 20.7 * TOGWOTEE PASS 9580 33.9 24.1 141 -M 27.9 * TWO OCEAN PLATEAU 9360 43.8 25.8 170 -M 30.4 * WILLOW CREEK 8450 40.6 29.5 138 39.8 31.8 125 ----- ----- Basin wide percent of average 147 135 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 34.8 22.9 152 29.9 17.4 172 BLACK BEAR 7950 -M 36.9 * -M 39.3 * CANYON 7940 23.5 12.5 188 25.8 13.8 187 FISHER CREEK 9100 55.1 34.7 159 -M 35.4 * MADISON PLATEAU 7750 41.0 23.8 172 41.7 25.4 164 NORTHEAST ENTRANCE 7350 11.8 9.0 131 19.1 11.5 166 PARKER PEAK 9400 30.8 21.0 147 -M 15.0 * SYLVAN LAKE 8420 31.5 21.4 147 32.0 18.5 173 THUMB DIVIDE 7980 30.9 16.5 187 -M 20.7 * TWO OCEAN PLATEAU 9360 43.8 25.8 170 -M 30.4 * WHISKEY CREEK 6800 24.8 16.8 148 31.1 21.1 147 WHITE MILL 8700 38.0 24.3 156 -M 27.4 * WOLVERINE 7650 14.1 11.4 124 15.1 12.3 123 ----- ----- Basin wide percent of average 158 162 WIND RIVER BURROUGHS CREEK 8750 23.7 14.6 162 25.5 16.0 159 CHRISTINA LAKE 9980 18.8 14.7 128 21.5 15.9 135 COLD SPRINGS 9630 10.0 8.1 123 11.4 10.0 114 HOBBS PARK 10100 16.4 14.3 115 12.8 13.4 96 LITTLE WARM 9620 17.1 11.0 155 19.2 12.7 151 SOUTH PASS 9040 24.8 15.8 157 24.0 16.2 148 ST. LAWRENCE ALT 8620 8.1 7.3 111 10.1 9.6 105 TOGWOTEE PASS 9580 33.9 24.1 141 -M 27.9 * TOWNSEND CREEK 8700 9.7 9.5 102 11.0 11.8 93 ----- ----- Basin wide percent of average 136 128 BIGHORN BASIN BALD MTN. 9375 21.0 19.7 107 17.4 16.5 105 BEAR TRAP MEADOW 7900 7.4 6.9 107 8.1 7.7 105 BLACKWATER 9780 37.1 21.4 173 28.1 17.4 161 BONE SPRINGS DIV 9350 17.6 15.7 112 15.5 14.2 109 EVENING STAR 9200 40.7 26.1 156 39.0 21.7 180 GRAVE SPRINGS 8550 11.0 -M * 10.3 9.0 114 KIRWIN 9550 14.2 9.5 149 15.3 10.2 150 LOST CREEK 8080 14.1 12.9 109 14.3 11.2 128 MARQUETTE 8760 10.5 7.7 136 11.0 8.9 124 MIDDLE POWDER 7760 15.1 11.6 130 13.2 11.1 119 OWL CREEK 8975 7.5 4.4 170 6.4 5.9 108 POWDER RIVER PASS 9480 12.8 10.4 123 13.0 11.0 118 SHELL CREEK 9580 16.9 14.4 117 14.0 12.5 112 SYLVAN LAKE 8420 31.5 21.4 147 32.0 18.5 173 SYLVAN ROAD 8120 19.9 12.4 160 26.1 15.5 168 TIMBER CREEK 7950 6.7 6.0 112 7.5 6.5 115 YOUNTS PEAK 8350 23.5 16.7 141 -M 16.0 * ----- ----- Basin wide percent of average 137 137 SHOSHONE RIVER BLACKWATER 9780 37.1 21.4 173 28.1 17.4 161 EVENING STAR 9200 40.7 26.1 156 39.0 21.7 180 KIRWIN 9550 14.2 9.5 149 15.3 10.2 150 MARQUETTE 8760 10.5 7.7 136 11.0 8.9 124 SYLVAN LAKE 8420 31.5 21.4 147 32.0 18.5 173 SYLVAN ROAD 8120 19.9 12.4 160 26.1 15.5 168 YOUNTS PEAK 8350 23.5 16.7 141 -M 16.0 * ----- ----- Basin wide percent of average 154 164 POWDER-TONGUE BEAR TRAP MEADOW 7900 7.4 6.9 107 8.1 7.7 105 BONE SPRINGS DIV 9350 17.6 15.7 112 15.5 14.2 109 BURGESS JUNCTION 7880 12.3 11.3 109 12.2 10.8 113 CLOUD PEAK RESERVOIR 9860 16.8 14.0 120 14.0 12.5 112 DOME LAKE 8880 12.2 13.2 92 13.3 12.5 106 GRAVE SPRINGS 8550 11.0 -M * 10.3 9.0 114 HANSEN SAWMILL 8760 7.3 6.8 107 7.9 7.4 107 LOST CREEK 8080 14.1 12.9 109 14.3 11.2 128 MIDDLE POWDER 7760 15.1 11.6 130 13.2 11.1 119 POWDER RIVER PASS 9480 12.8 10.4 123 13.0 11.0 118 SUCKER CREEK 8880 13.3 11.6 115 13.8 12.4 111 TIE CREEK 6870 6.8 -M * 10.9 10.3 106 ----- ----- Basin wide percent of average 113 113 BELLE FOURCHE BLIND PARK 6890 9.6 10.6 91 14.0 9.4 149 NORTH RAPID CREEK 6130 -M -M * -M -M * WARREN PEAK 6520 16.3 10.6 154 -M 7.5 * ----- ----- Basin wide percent of average 122 149* UPPER N. PLATTE RIVER COLUMBINE 9400 27.8 24.2 115 29.5 23.5 126 DIVIDE PEAK 8800 24.6 20.1 122 23.8 21.7 110 ELK RIVER 8700 26.3 19.2 137 24.2 18.2 133 JOE WRIGHT 10120 22.2 20.9 106 27.3 23.8 115 NORTH FRENCH CREEK 10100 33.9 24.3 140 30.0 22.3 135 OLD BATTLE 10000 39.3 30.6 128 50.5 28.7 176 SOUTH BRUSH CREEK 8400 13.3 12.4 107 16.7 15.4 108 TOWER 10500 52.1 43.4 120 49.1 34.6 142 WEBBER SPRINGS 9200 29.5 26.7 110 34.4 24.0 143 WILLOW CREEK PASS 9540 16.5 11.3 146 14.3 11.9 120 ----- ----- Basin wide percent of average 122 134 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 34.4 24.6 140 26.0 18.4 141 CASPER MTN. 7900 19.1 15.3 125 18.2 13.2 138 CHRISTINA LAKE 9980 18.8 14.7 128 21.5 15.9 135 DEADMAN HILL 10220 15.4 15.8 97 17.3 15.7 110 LAPRELE CREEK 8320 13.6 10.0 136 13.6 11.1 123 RENO HILL 8400 20.3 13.4 151 17.5 18.0 97 ROACH 9700 22.8 16.6 137 20.8 20.1 103 SAND LAKE 10080 34.7 31.5 110 27.6 19.3 143 SOUTH PASS 9040 24.8 15.8 157 24.0 16.2 148 WINDY PEAK 7840 9.7 8.2 118 11.2 8.9 126 ----- ----- Basin wide percent of average 129 126 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 14.8 11.1 133 25.0 14.6 171 DIVIDE PEAK 8800 24.6 20.1 122 23.8 21.7 110 OLD BATTLE 10000 39.3 30.6 128 50.5 28.7 176 SANDSTONE RS 8150 17.7 14.3 124 21.7 17.8 122 WHISKEY PARK 8950 36.0 27.7 130 32.3 26.7 121 ----- ----- Basin wide percent of average 128 140 UPPER GREEN RIVER BIG SANDY OPENING 9100 19.4 14.1 138 16.5 16.1 102 BLIND BULL SUM 8650 41.4 28.5 145 32.5 23.7 137 EAST RIM DIVIDE 7930 16.7 13.6 123 17.0 15.0 113 ELKHART PARK G.S. 9400 18.2 13.4 136 18.1 15.8 115 GROS VENTRE SUMMIT 8775 21.6 15.1 143 20.3 15.8 128 KENDALL R.S. 7740 24.2 14.6 166 23.8 15.4 155 LOOMIS PARK 8240 -M 17.1 * 26.8 18.7 143 NEW FORK LAKE 8340 14.6 11.0 133 13.2 14.3 92 SNIDER BASIN 8250 23.1 14.5 159 19.1 15.0 127 SPRING CREEK DIVIDE 9000 34.0 27.1 125 32.2 27.1 119 TRIPLE PEAK 8500 36.5 24.9 147 36.6 30.7 119 ----- ----- Basin wide percent of average 141 123 LOWER GREEN RIVER HAMS FORK 7840 15.9 12.1 131 14.7 13.2 111 HEWINTA 9500 10.4 10.8 96 13.7 12.4 110 HICKERSON PARK 9150 7.5 6.4 117 8.8 8.9 99 HOLE-IN-ROCK 9150 7.3 6.0 122 9.3 8.9 104 INDIAN CREEK 9425 39.2 27.6 142 31.1 25.5 122 KELLEY R.S. 8180 23.5 16.6 142 25.8 18.6 139 STEEL CREEK PARK 10100 15.3 15.5 99 15.1 12.2 124 ----- ----- Basin wide percent of average 125 119 UPPER BEAR RIVER BUG LAKE 7950 33.0 20.2 163 29.3 18.6 158 HAYDEN FORK 9400 17.3 16.0 108 24.7 18.1 136 KELLEY R.S. 8180 23.5 16.6 142 25.8 18.6 139 LILY LAKE 9050 16.5 12.6 131 18.7 14.0 134 MONTE CRISTO 8960 37.1 28.3 131 32.6 24.4 134 SALT RIVER SUMMIT 7600 21.6 13.9 155 23.3 16.7 140 TRIAL LAKE 9960 34.5 24.4 141 34.2 22.9 149 ----- ----- Basin wide percent of average 139 141 ----------------------------------------------------------------------------- -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.