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 SATURDAY: MARCH 22 , 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 33.8 21.9 154 COTTONWOOD CREEK 7600 30.4 22.8 133 31.6 24.6 128 GRANITE CREEK 6770 27.4 17.8 154 32.5 23.1 141 GRASSY LAKE 7265 46.0 34.4 134 51.4 36.3 142 GROS VENTRE SUMMIT 8775 20.5 15.0 137 20.3 15.6 130 LEWIS LAKE DIVIDE 7860 51.8 34.0 152 46.5 36.9 126 PHILLIPS BENCH 8200 40.7 28.0 145 44.1 29.1 152 SALT RIVER SUMMIT 7600 21.5 13.8 156 23.3 16.6 140 SNAKE RIVER STATION 6920 26.9 18.2 148 35.6 25.4 140 SPRING CREEK DIVIDE 9000 33.9 26.8 126 32.2 26.8 120 THUMB DIVIDE 7980 32.1 16.4 196 -M 20.5 * TOGWOTEE PASS 9580 33.7 23.8 142 -M 27.6 * TWO OCEAN PLATEAU 9360 43.7 25.6 171 -M 30.2 * WILLOW CREEK 8450 40.6 29.3 139 39.4 31.5 125 ----- ----- Basin wide percent of average 148 136 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 34.5 22.6 153 29.7 17.2 173 BLACK BEAR 7950 -M 36.6 * -M 38.8 * CANYON 7940 23.9 12.4 193 25.8 13.7 188 FISHER CREEK 9100 54.7 34.3 159 -M 35.0 * MADISON PLATEAU 7750 40.9 23.6 173 41.5 25.1 165 NORTHEAST ENTRANCE 7350 12.0 9.0 133 18.9 11.4 166 PARKER PEAK 9400 30.7 20.7 148 -M 14.9 * SYLVAN LAKE 8420 31.3 21.2 148 31.8 18.3 174 THUMB DIVIDE 7980 32.1 16.4 196 -M 20.5 * TWO OCEAN PLATEAU 9360 43.7 25.6 171 -M 30.2 * WHISKEY CREEK 6800 24.7 16.6 149 31.0 20.8 149 WHITE MILL 8700 37.8 24.2 156 -M 27.1 * WOLVERINE 7650 14.2 11.3 126 15.1 12.2 124 ----- ----- Basin wide percent of average 160 163 WIND RIVER BURROUGHS CREEK 8750 23.6 14.5 163 25.3 15.8 160 CHRISTINA LAKE 9980 18.8 14.6 129 21.5 15.7 137 COLD SPRINGS 9630 9.9 8.0 124 11.2 9.9 113 HOBBS PARK 10100 16.5 14.2 116 12.8 13.2 97 LITTLE WARM 9620 16.1 10.9 148 18.0 12.5 144 SOUTH PASS 9040 25.2 15.7 161 24.0 16.0 150 ST. LAWRENCE ALT 8620 8.3 7.2 115 10.1 9.5 106 TOGWOTEE PASS 9580 33.7 23.8 142 -M 27.6 * TOWNSEND CREEK 8700 9.8 9.4 104 11.0 11.6 95 ----- ----- Basin wide percent of average 137 129 BIGHORN BASIN BALD MTN. 9375 20.9 19.5 107 17.4 16.3 107 BEAR TRAP MEADOW 7900 7.6 6.8 112 8.2 7.6 108 BLACKWATER 9780 37.0 21.1 175 28.2 17.2 164 BONE SPRINGS DIV 9350 17.5 15.6 112 15.5 14.0 111 EVENING STAR 9200 40.2 25.8 156 38.8 21.5 180 GRAVE SPRINGS 8550 10.8 -M * 10.1 8.9 113 KIRWIN 9550 14.1 9.4 150 15.3 10.1 151 LOST CREEK 8080 14.1 12.7 111 14.2 11.0 129 MARQUETTE 8760 10.3 7.6 136 10.8 8.7 124 MIDDLE POWDER 7760 14.8 11.4 130 13.2 11.0 120 OWL CREEK 8975 7.6 4.3 177 6.4 5.8 110 POWDER RIVER PASS 9480 12.9 10.3 125 12.9 10.8 119 SHELL CREEK 9580 16.8 14.3 117 13.9 12.3 113 SYLVAN LAKE 8420 31.3 21.2 148 31.8 18.3 174 SYLVAN ROAD 8120 20.0 12.4 161 26.1 15.4 169 TIMBER CREEK 7950 6.7 5.9 114 7.5 6.4 117 YOUNTS PEAK 8350 23.3 16.5 141 -M 15.8 * ----- ----- Basin wide percent of average 137 138 SHOSHONE RIVER BLACKWATER 9780 37.0 21.1 175 28.2 17.2 164 EVENING STAR 9200 40.2 25.8 156 38.8 21.5 180 KIRWIN 9550 14.1 9.4 150 15.3 10.1 151 MARQUETTE 8760 10.3 7.6 136 10.8 8.7 124 SYLVAN LAKE 8420 31.3 21.2 148 31.8 18.3 174 SYLVAN ROAD 8120 20.0 12.4 161 26.1 15.4 169 YOUNTS PEAK 8350 23.3 16.5 141 -M 15.8 * ----- ----- Basin wide percent of average 155 166 POWDER-TONGUE BEAR TRAP MEADOW 7900 7.6 6.8 112 8.2 7.6 108 BONE SPRINGS DIV 9350 17.5 15.6 112 15.5 14.0 111 BURGESS JUNCTION 7880 12.1 11.2 108 12.0 10.6 113 CLOUD PEAK RESERVOIR 9860 16.8 13.8 122 13.9 12.3 113 DOME LAKE 8880 12.1 13.0 93 13.2 12.3 107 GRAVE SPRINGS 8550 10.8 -M * 10.1 8.9 113 HANSEN SAWMILL 8760 7.3 6.7 109 7.9 7.3 108 LOST CREEK 8080 14.1 12.7 111 14.2 11.0 129 MIDDLE POWDER 7760 14.8 11.4 130 13.2 11.0 120 POWDER RIVER PASS 9480 12.9 10.3 125 12.9 10.8 119 SUCKER CREEK 8880 13.1 11.4 115 13.7 12.3 111 TIE CREEK 6870 6.9 -M * 10.8 10.1 107 ----- ----- Basin wide percent of average 114 114 BELLE FOURCHE BLIND PARK 6890 9.8 10.5 93 13.9 9.2 151 NORTH RAPID CREEK 6130 -M -M * -M -M * WARREN PEAK 6520 16.0 10.5 152 -M 7.4 * ----- ----- Basin wide percent of average 123 151* UPPER N. PLATTE RIVER COLUMBINE 9400 28.9 24.0 120 29.4 23.2 127 DIVIDE PEAK 8800 24.8 19.8 125 23.8 21.5 111 ELK RIVER 8700 26.9 19.1 141 24.2 18.0 134 JOE WRIGHT 10120 22.1 20.6 107 27.4 23.5 117 NORTH FRENCH CREEK 10100 34.0 24.0 142 30.0 22.0 136 OLD BATTLE 10000 39.3 30.1 131 50.5 28.4 178 SOUTH BRUSH CREEK 8400 13.8 12.1 114 16.7 15.2 110 TOWER 10500 52.3 42.9 122 49.1 34.2 144 WEBBER SPRINGS 9200 29.1 26.3 111 34.4 23.7 145 WILLOW CREEK PASS 9540 16.7 11.1 150 14.1 11.7 121 ----- ----- Basin wide percent of average 125 135 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 33.8 24.2 140 25.6 18.1 141 CASPER MTN. 7900 19.3 15.0 129 18.2 13.0 140 CHRISTINA LAKE 9980 18.8 14.6 129 21.5 15.7 137 DEADMAN HILL 10220 15.3 15.7 97 17.3 15.5 112 LAPRELE CREEK 8320 13.5 9.9 136 13.6 10.9 125 RENO HILL 8400 20.4 13.2 155 17.4 17.7 98 ROACH 9700 22.6 16.3 139 20.8 19.9 105 SAND LAKE 10080 34.7 31.2 111 27.5 19.1 144 SOUTH PASS 9040 25.2 15.7 161 24.0 16.0 150 WINDY PEAK 7840 9.8 8.1 121 11.3 8.7 130 ----- ----- Basin wide percent of average 130 128 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 15.4 11.0 140 22.8 14.4 158 DIVIDE PEAK 8800 24.8 19.8 125 23.8 21.5 111 OLD BATTLE 10000 39.3 30.1 131 50.5 28.4 178 SANDSTONE RS 8150 18.7 14.2 132 21.6 17.6 123 WHISKEY PARK 8950 36.3 27.4 132 32.1 26.4 122 ----- ----- Basin wide percent of average 131 139 UPPER GREEN RIVER BIG SANDY OPENING 9100 19.1 13.9 137 19.3 15.9 121 BLIND BULL SUM 8650 41.2 28.2 146 32.5 23.4 139 EAST RIM DIVIDE 7930 17.0 13.5 126 17.0 14.9 114 ELKHART PARK G.S. 9400 18.3 13.3 138 18.2 15.7 116 GROS VENTRE SUMMIT 8775 20.5 15.0 137 20.3 15.6 130 KENDALL R.S. 7740 23.9 14.5 165 23.7 15.3 155 LOOMIS PARK 8240 -M 17.0 * 26.8 18.5 145 NEW FORK LAKE 8340 14.7 10.9 135 13.2 14.2 93 SNIDER BASIN 8250 23.3 14.4 162 19.0 14.9 128 SPRING CREEK DIVIDE 9000 33.9 26.8 126 32.2 26.8 120 TRIPLE PEAK 8500 36.6 24.7 148 36.5 30.5 120 ----- ----- Basin wide percent of average 142 126 LOWER GREEN RIVER HAMS FORK 7840 16.4 12.1 136 14.6 13.1 111 HEWINTA 9500 12.0 10.6 113 13.7 12.2 112 HICKERSON PARK 9150 7.4 6.3 117 8.8 8.8 100 HOLE-IN-ROCK 9150 7.3 5.9 124 9.3 8.8 106 INDIAN CREEK 9425 39.8 27.3 146 31.1 25.3 123 KELLEY R.S. 8180 23.6 16.5 143 25.4 18.4 138 STEEL CREEK PARK 10100 15.4 15.2 101 15.1 12.0 126 ----- ----- Basin wide percent of average 130 120 UPPER BEAR RIVER BUG LAKE 7950 32.9 19.9 165 29.2 18.4 159 HAYDEN FORK 9400 18.9 15.9 119 24.7 17.8 139 KELLEY R.S. 8180 23.6 16.5 143 25.4 18.4 138 LILY LAKE 9050 17.3 12.5 138 18.8 13.8 136 MONTE CRISTO 8960 36.0 27.8 129 32.6 24.1 135 SALT RIVER SUMMIT 7600 21.5 13.8 156 23.3 16.6 140 TRIAL LAKE 9960 35.0 24.2 145 34.2 22.6 151 ----- ----- Basin wide percent of average 142 143 ----------------------------------------------------------------------------- -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.