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 SUNDAY: MARCH 23 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 29.5 17.2 172 33.9 22.0 154 COTTONWOOD CREEK 7600 30.2 23.0 131 31.7 24.7 128 GRANITE CREEK 6770 27.8 17.9 155 32.5 23.2 140 GRASSY LAKE 7265 45.6 34.6 132 51.3 36.5 141 GROS VENTRE SUMMIT 8775 21.2 15.1 140 20.3 15.7 129 LEWIS LAKE DIVIDE 7860 51.9 34.2 152 46.4 37.0 125 PHILLIPS BENCH 8200 40.7 28.1 145 44.1 29.3 151 SALT RIVER SUMMIT 7600 21.6 13.9 155 23.3 16.7 140 SNAKE RIVER STATION 6920 27.2 18.2 149 35.6 25.6 139 SPRING CREEK DIVIDE 9000 34.0 27.0 126 32.2 26.9 120 THUMB DIVIDE 7980 31.1 16.5 188 -M 20.6 * TOGWOTEE PASS 9580 33.6 24.0 140 -M 27.8 * TWO OCEAN PLATEAU 9360 43.7 25.7 170 -M 30.3 * WILLOW CREEK 8450 40.6 29.4 138 39.6 31.7 125 ----- ----- Basin wide percent of average 147 135 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 34.6 22.7 152 29.7 17.3 172 BLACK BEAR 7950 -M 36.8 * -M 39.1 * CANYON 7940 23.9 12.5 191 25.8 13.7 188 FISHER CREEK 9100 54.8 34.5 159 -M 35.2 * MADISON PLATEAU 7750 41.0 23.7 173 41.7 25.3 165 NORTHEAST ENTRANCE 7350 11.9 9.0 132 18.9 11.4 166 PARKER PEAK 9400 30.7 20.8 148 -M 14.9 * SYLVAN LAKE 8420 31.5 21.3 148 31.8 18.4 173 THUMB DIVIDE 7980 31.1 16.5 188 -M 20.6 * TWO OCEAN PLATEAU 9360 43.7 25.7 170 -M 30.3 * WHISKEY CREEK 6800 24.8 16.7 149 31.1 21.0 148 WHITE MILL 8700 37.8 24.3 156 -M 27.3 * WOLVERINE 7650 14.3 11.3 127 15.1 12.3 123 ----- ----- Basin wide percent of average 159 163 WIND RIVER BURROUGHS CREEK 8750 23.6 14.6 162 25.3 15.9 159 CHRISTINA LAKE 9980 18.9 14.7 129 21.5 15.8 136 COLD SPRINGS 9630 9.9 8.0 124 11.1 10.0 111 HOBBS PARK 10100 16.6 14.3 116 12.8 13.3 96 LITTLE WARM 9620 16.2 11.0 147 18.0 12.6 143 SOUTH PASS 9040 25.2 15.8 159 24.0 16.1 149 ST. LAWRENCE ALT 8620 8.2 7.3 112 10.1 9.6 105 TOGWOTEE PASS 9580 33.6 24.0 140 -M 27.8 * TOWNSEND CREEK 8700 9.9 9.4 105 11.0 11.7 94 ----- ----- Basin wide percent of average 136 127 BIGHORN BASIN BALD MTN. 9375 21.0 19.6 107 17.4 16.4 106 BEAR TRAP MEADOW 7900 7.4 6.8 109 8.0 7.6 105 BLACKWATER 9780 37.1 21.2 175 28.2 17.3 163 BONE SPRINGS DIV 9350 17.6 15.7 112 15.5 14.1 110 EVENING STAR 9200 40.5 25.9 156 38.8 21.6 180 GRAVE SPRINGS 8550 10.9 -M * 10.1 9.0 112 KIRWIN 9550 14.1 9.5 148 15.3 10.2 150 LOST CREEK 8080 14.1 12.8 110 14.2 11.1 128 MARQUETTE 8760 10.5 7.7 136 10.8 8.8 123 MIDDLE POWDER 7760 14.9 11.5 130 13.2 11.0 120 OWL CREEK 8975 7.8 4.3 181 6.3 5.8 109 POWDER RIVER PASS 9480 12.9 10.4 124 12.9 10.9 118 SHELL CREEK 9580 16.8 14.4 117 14.0 12.4 113 SYLVAN LAKE 8420 31.5 21.3 148 31.8 18.4 173 SYLVAN ROAD 8120 20.0 12.4 161 26.1 15.4 169 TIMBER CREEK 7950 6.9 5.9 117 7.5 6.4 117 YOUNTS PEAK 8350 23.4 16.6 141 -M 15.9 * ----- ----- Basin wide percent of average 137 138 SHOSHONE RIVER BLACKWATER 9780 37.1 21.2 175 28.2 17.3 163 EVENING STAR 9200 40.5 25.9 156 38.8 21.6 180 KIRWIN 9550 14.1 9.5 148 15.3 10.2 150 MARQUETTE 8760 10.5 7.7 136 10.8 8.8 123 SYLVAN LAKE 8420 31.5 21.3 148 31.8 18.4 173 SYLVAN ROAD 8120 20.0 12.4 161 26.1 15.4 169 YOUNTS PEAK 8350 23.4 16.6 141 -M 15.9 * ----- ----- Basin wide percent of average 155 165 POWDER-TONGUE BEAR TRAP MEADOW 7900 7.4 6.8 109 8.0 7.6 105 BONE SPRINGS DIV 9350 17.6 15.7 112 15.5 14.1 110 BURGESS JUNCTION 7880 12.2 11.2 109 12.0 10.7 112 CLOUD PEAK RESERVOIR 9860 16.9 13.9 122 13.9 12.4 112 DOME LAKE 8880 12.2 13.1 93 13.2 12.4 106 GRAVE SPRINGS 8550 10.9 -M * 10.1 9.0 112 HANSEN SAWMILL 8760 7.3 6.8 107 7.9 7.3 108 LOST CREEK 8080 14.1 12.8 110 14.2 11.1 128 MIDDLE POWDER 7760 14.9 11.5 130 13.2 11.0 120 POWDER RIVER PASS 9480 12.9 10.4 124 12.9 10.9 118 SUCKER CREEK 8880 13.3 11.5 116 13.7 12.3 111 TIE CREEK 6870 6.8 -M * 10.8 10.2 106 ----- ----- Basin wide percent of average 113 113 BELLE FOURCHE BLIND PARK 6890 9.7 10.6 92 13.9 9.3 149 NORTH RAPID CREEK 6130 -M -M * -M -M * WARREN PEAK 6520 16.1 10.6 152 -M 7.5 * ----- ----- Basin wide percent of average 122 149* UPPER N. PLATTE RIVER COLUMBINE 9400 28.3 24.1 117 29.5 23.3 127 DIVIDE PEAK 8800 24.6 19.9 124 23.8 21.6 110 ELK RIVER 8700 26.7 19.2 139 24.2 18.1 134 JOE WRIGHT 10120 22.1 20.8 106 27.3 23.6 116 NORTH FRENCH CREEK 10100 34.0 24.2 140 30.0 22.2 135 OLD BATTLE 10000 39.2 30.3 129 50.5 28.5 177 SOUTH BRUSH CREEK 8400 13.5 12.2 111 16.7 15.3 109 TOWER 10500 52.3 43.2 121 49.1 34.4 143 WEBBER SPRINGS 9200 29.0 26.5 109 34.4 23.9 144 WILLOW CREEK PASS 9540 16.7 11.2 149 14.2 11.8 120 ----- ----- Basin wide percent of average 124 135 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 34.2 24.4 140 25.8 18.3 141 CASPER MTN. 7900 19.3 15.2 127 18.2 13.1 139 CHRISTINA LAKE 9980 18.9 14.7 129 21.5 15.8 136 DEADMAN HILL 10220 15.2 15.8 96 17.2 15.6 110 LAPRELE CREEK 8320 13.8 10.0 138 13.6 11.0 124 RENO HILL 8400 20.4 13.3 153 17.5 17.9 98 ROACH 9700 22.6 16.4 138 20.8 20.0 104 SAND LAKE 10080 34.6 31.4 110 27.5 19.2 143 SOUTH PASS 9040 25.2 15.8 159 24.0 16.1 149 WINDY PEAK 7840 9.9 8.2 121 11.1 8.8 126 ----- ----- Basin wide percent of average 130 127 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 15.2 11.0 138 23.8 14.5 164 DIVIDE PEAK 8800 24.6 19.9 124 23.8 21.6 110 OLD BATTLE 10000 39.2 30.3 129 50.5 28.5 177 SANDSTONE RS 8150 18.2 14.3 127 21.7 17.7 123 WHISKEY PARK 8950 36.3 27.6 132 32.2 26.5 122 ----- ----- Basin wide percent of average 129 140 UPPER GREEN RIVER BIG SANDY OPENING 9100 19.3 14.0 138 17.4 16.0 109 BLIND BULL SUM 8650 41.3 28.4 145 32.5 23.6 138 EAST RIM DIVIDE 7930 16.8 13.6 124 17.0 14.9 114 ELKHART PARK G.S. 9400 18.3 13.3 138 18.2 15.7 116 GROS VENTRE SUMMIT 8775 21.2 15.1 140 20.3 15.7 129 KENDALL R.S. 7740 24.0 14.5 166 23.7 15.3 155 LOOMIS PARK 8240 -M 17.0 * 26.8 18.6 144 NEW FORK LAKE 8340 14.6 11.0 133 13.2 14.2 93 SNIDER BASIN 8250 23.2 14.4 161 19.1 14.9 128 SPRING CREEK DIVIDE 9000 34.0 27.0 126 32.2 26.9 120 TRIPLE PEAK 8500 36.6 24.8 148 36.5 30.6 119 ----- ----- Basin wide percent of average 142 124 LOWER GREEN RIVER HAMS FORK 7840 16.2 12.1 134 14.7 13.2 111 HEWINTA 9500 11.3 10.7 106 13.7 12.3 111 HICKERSON PARK 9150 7.4 6.3 117 8.8 8.8 100 HOLE-IN-ROCK 9150 7.3 6.0 122 9.3 8.8 106 INDIAN CREEK 9425 39.4 27.5 143 31.1 25.4 122 KELLEY R.S. 8180 23.5 16.6 142 25.6 18.5 138 STEEL CREEK PARK 10100 15.3 15.4 99 15.1 12.1 125 ----- ----- Basin wide percent of average 127 119 UPPER BEAR RIVER BUG LAKE 7950 33.0 20.0 165 29.3 18.5 158 HAYDEN FORK 9400 18.3 15.9 115 24.7 18.0 137 KELLEY R.S. 8180 23.5 16.6 142 25.6 18.5 138 LILY LAKE 9050 17.2 12.6 137 18.8 13.9 135 MONTE CRISTO 8960 37.1 28.0 133 32.6 24.3 134 SALT RIVER SUMMIT 7600 21.6 13.9 155 23.3 16.7 140 TRIAL LAKE 9960 35.1 24.3 144 34.2 22.8 150 ----- ----- Basin wide percent of average 142 142 ----------------------------------------------------------------------------- -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.