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: MARCH 28 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 29.8 17.5 170 34.5 22.5 153 COTTONWOOD CREEK 7600 30.7 23.8 129 32.3 25.3 128 GRANITE CREEK 6770 28.7 18.4 156 32.9 23.6 139 GRASSY LAKE 7265 44.3 35.5 125 52.9 37.4 141 GROS VENTRE SUMMIT 8775 21.9 15.5 141 21.3 16.0 133 LEWIS LAKE DIVIDE 7860 51.7 35.0 148 46.0 38.0 121 PHILLIPS BENCH 8200 42.3 28.8 147 45.5 30.0 152 SALT RIVER SUMMIT 7600 21.7 14.2 153 23.4 17.0 138 SNAKE RIVER STATION 6920 27.9 18.5 151 36.3 26.2 139 SPRING CREEK DIVIDE 9000 34.7 27.7 125 32.4 27.6 117 THUMB DIVIDE 7980 31.7 16.9 188 -M 21.0 * TOGWOTEE PASS 9580 34.4 24.7 139 -M 28.4 * TWO OCEAN PLATEAU 9360 44.8 26.3 170 -M 30.9 * WILLOW CREEK 8450 41.1 30.0 137 40.5 32.3 125 ----- ----- Basin wide percent of average 146 135 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 33.9 23.3 145 30.0 17.8 169 BLACK BEAR 7950 -M 37.7 * -M 40.3 * CANYON 7940 23.4 12.8 183 26.1 14.1 185 FISHER CREEK 9100 55.6 35.4 157 -M 36.3 * MADISON PLATEAU 7750 41.3 24.3 170 42.0 26.1 161 NORTHEAST ENTRANCE 7350 12.0 9.1 132 19.2 11.7 164 PARKER PEAK 9400 31.1 21.4 145 -M 15.4 * SYLVAN LAKE 8420 32.2 21.9 147 32.4 18.9 171 THUMB DIVIDE 7980 31.7 16.9 188 -M 21.0 * TWO OCEAN PLATEAU 9360 44.8 26.3 170 -M 30.9 * WHISKEY CREEK 6800 25.2 17.1 147 31.4 21.7 145 WHITE MILL 8700 38.1 24.7 154 -M 28.1 * WOLVERINE 7650 14.2 11.5 123 15.2 12.6 121 ----- ----- Basin wide percent of average 157 160 WIND RIVER BURROUGHS CREEK 8750 23.8 14.8 161 25.7 16.4 157 CHRISTINA LAKE 9980 19.3 15.1 128 23.0 16.3 141 COLD SPRINGS 9630 10.1 8.2 123 11.8 10.3 115 HOBBS PARK 10100 17.0 14.7 116 13.2 13.8 96 LITTLE WARM 9620 17.7 11.3 157 19.6 13.0 151 SOUTH PASS 9040 25.4 16.1 158 24.4 16.7 146 ST. LAWRENCE ALT 8620 9.0 7.5 120 10.6 9.9 107 TOGWOTEE PASS 9580 34.4 24.7 139 -M 28.4 * TOWNSEND CREEK 8700 9.9 9.7 102 11.6 12.2 95 ----- ----- Basin wide percent of average 136 129 BIGHORN BASIN BALD MTN. 9375 21.6 20.1 107 18.0 17.0 106 BEAR TRAP MEADOW 7900 7.3 7.0 104 8.4 8.0 105 BLACKWATER 9780 37.5 21.9 171 28.6 17.7 162 BONE SPRINGS DIV 9350 18.5 16.1 115 16.2 14.7 110 EVENING STAR 9200 40.7 26.6 153 39.5 22.2 178 GRAVE SPRINGS 8550 12.2 -M * 11.0 9.3 118 KIRWIN 9550 14.4 9.8 147 15.7 10.5 150 LOST CREEK 8080 15.2 13.3 114 15.5 11.5 135 MARQUETTE 8760 11.1 7.9 141 11.4 9.2 124 MIDDLE POWDER 7760 17.0 11.9 143 14.5 11.5 126 OWL CREEK 8975 8.0 4.5 178 6.5 6.0 108 POWDER RIVER PASS 9480 12.2 10.7 114 13.3 11.2 119 SHELL CREEK 9580 17.3 14.7 118 14.4 12.8 112 SYLVAN LAKE 8420 32.2 21.9 147 32.4 18.9 171 SYLVAN ROAD 8120 20.1 12.5 161 26.7 15.9 168 TIMBER CREEK 7950 7.2 6.1 118 8.0 6.8 118 YOUNTS PEAK 8350 23.8 17.0 140 -M 16.3 * ----- ----- Basin wide percent of average 137 138 SHOSHONE RIVER BLACKWATER 9780 37.5 21.9 171 28.6 17.7 162 EVENING STAR 9200 40.7 26.6 153 39.5 22.2 178 KIRWIN 9550 14.4 9.8 147 15.7 10.5 150 MARQUETTE 8760 11.1 7.9 141 11.4 9.2 124 SYLVAN LAKE 8420 32.2 21.9 147 32.4 18.9 171 SYLVAN ROAD 8120 20.1 12.5 161 26.7 15.9 168 YOUNTS PEAK 8350 23.8 17.0 140 -M 16.3 * ----- ----- Basin wide percent of average 153 163 POWDER-TONGUE BEAR TRAP MEADOW 7900 7.3 7.0 104 8.4 8.0 105 BONE SPRINGS DIV 9350 18.5 16.1 115 16.2 14.7 110 BURGESS JUNCTION 7880 13.5 11.5 117 12.9 11.1 116 CLOUD PEAK RESERVOIR 9860 17.6 14.5 121 15.0 12.9 116 DOME LAKE 8880 12.7 13.5 94 13.9 12.8 109 GRAVE SPRINGS 8550 12.2 -M * 11.0 9.3 118 HANSEN SAWMILL 8760 7.2 7.0 103 8.1 7.7 105 LOST CREEK 8080 15.2 13.3 114 15.5 11.5 135 MIDDLE POWDER 7760 17.0 11.9 143 14.5 11.5 126 POWDER RIVER PASS 9480 12.2 10.7 114 13.3 11.2 119 SUCKER CREEK 8880 14.4 11.9 121 14.7 12.8 115 TIE CREEK 6870 7.5 -M * 12.0 10.6 113 ----- ----- Basin wide percent of average 116 116 BELLE FOURCHE BLIND PARK 6890 9.6 10.9 88 14.4 9.7 148 NORTH RAPID CREEK 6130 9.2 -M * 12.6 -M * WARREN PEAK 6520 17.7 10.9 162 -M 7.8 * ----- ----- Basin wide percent of average 125 148* UPPER N. PLATTE RIVER COLUMBINE 9400 28.2 24.5 115 29.9 24.0 125 DIVIDE PEAK 8800 25.4 20.7 123 23.8 22.3 107 ELK RIVER 8700 26.0 19.6 133 24.1 18.7 129 JOE WRIGHT 10120 23.7 21.5 110 27.7 24.4 114 NORTH FRENCH CREEK 10100 34.9 25.0 140 27.6 22.9 121 OLD BATTLE 10000 38.8 31.4 124 36.7 29.5 124 SOUTH BRUSH CREEK 8400 13.5 12.9 105 17.1 15.9 108 TOWER 10500 52.8 44.4 119 46.4 35.4 131 WEBBER SPRINGS 9200 30.4 27.5 111 34.9 24.6 142 WILLOW CREEK PASS 9540 17.0 11.6 147 14.1 12.3 115 ----- ----- Basin wide percent of average 122 123 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 35.0 25.5 137 26.4 18.9 140 CASPER MTN. 7900 21.0 16.0 131 19.6 13.6 144 CHRISTINA LAKE 9980 19.3 15.1 128 23.0 16.3 141 DEADMAN HILL 10220 15.6 16.2 96 17.6 16.2 109 LAPRELE CREEK 8320 14.4 10.3 140 14.0 11.5 122 RENO HILL 8400 22.1 13.9 159 19.1 18.6 103 ROACH 9700 23.0 17.0 135 21.1 20.6 102 SAND LAKE 10080 36.5 32.3 113 28.6 19.8 144 SOUTH PASS 9040 25.4 16.1 158 24.4 16.7 146 WINDY PEAK 7840 10.1 8.5 119 11.1 9.2 121 ----- ----- Basin wide percent of average 130 127 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 14.6 11.2 130 27.1 15.0 181 DIVIDE PEAK 8800 25.4 20.7 123 23.8 22.3 107 OLD BATTLE 10000 38.8 31.4 124 36.7 29.5 124 SANDSTONE RS 8150 17.8 14.7 121 21.7 18.2 119 WHISKEY PARK 8950 36.4 28.4 128 32.4 27.5 118 ----- ----- Basin wide percent of average 125 126 UPPER GREEN RIVER BIG SANDY OPENING 9100 18.9 14.4 131 21.4 16.3 131 BLIND BULL SUM 8650 41.8 29.2 143 32.7 24.1 136 EAST RIM DIVIDE 7930 16.8 13.8 122 17.2 15.3 112 ELKHART PARK G.S. 9400 18.1 13.6 133 18.4 16.0 115 GROS VENTRE SUMMIT 8775 21.9 15.5 141 21.3 16.0 133 KENDALL R.S. 7740 24.1 14.6 165 23.8 15.6 153 LOOMIS PARK 8240 -M 17.3 * 27.3 19.0 144 NEW FORK LAKE 8340 15.0 11.2 134 13.2 14.6 90 SNIDER BASIN 8250 23.3 14.7 159 19.2 15.3 125 SPRING CREEK DIVIDE 9000 34.7 27.7 125 32.4 27.6 117 TRIPLE PEAK 8500 37.1 25.4 146 37.2 31.2 119 ----- ----- Basin wide percent of average 140 125 LOWER GREEN RIVER HAMS FORK 7840 15.9 12.2 130 14.6 13.5 108 HEWINTA 9500 10.5 11.1 95 14.0 12.7 110 HICKERSON PARK 9150 8.0 6.6 121 9.2 9.2 100 HOLE-IN-ROCK 9150 7.5 6.3 119 9.7 9.2 105 INDIAN CREEK 9425 39.3 28.3 139 31.3 26.1 120 KELLEY R.S. 8180 23.8 17.0 140 25.8 18.9 137 STEEL CREEK PARK 10100 16.0 16.1 99 15.5 12.5 124 ----- ----- Basin wide percent of average 124 118 UPPER BEAR RIVER BUG LAKE 7950 33.4 20.7 161 29.2 19.1 153 HAYDEN FORK 9400 18.1 16.2 112 25.1 18.6 135 KELLEY R.S. 8180 23.8 17.0 140 25.8 18.9 137 LILY LAKE 9050 16.6 13.0 128 19.3 14.4 134 MONTE CRISTO 8960 38.1 29.1 131 32.7 25.1 130 SALT RIVER SUMMIT 7600 21.7 14.2 153 23.4 17.0 138 TRIAL LAKE 9960 34.0 24.7 138 34.4 23.4 147 ----- ----- Basin wide percent of average 138 139 ----------------------------------------------------------------------------- -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.