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 30 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 30.1 17.7 170 34.6 22.6 153 COTTONWOOD CREEK 7600 31.0 24.2 128 32.4 25.5 127 GRANITE CREEK 6770 29.1 18.6 156 33.0 23.8 139 GRASSY LAKE 7265 45.4 35.9 126 52.9 37.7 140 GROS VENTRE SUMMIT 8775 22.6 15.6 145 21.4 16.2 132 LEWIS LAKE DIVIDE 7860 51.8 35.4 146 45.9 38.3 120 PHILLIPS BENCH 8200 42.6 29.1 146 45.7 30.3 151 SALT RIVER SUMMIT 7600 21.8 14.4 151 23.5 17.2 137 SNAKE RIVER STATION 6920 28.7 18.7 153 36.4 26.4 138 SPRING CREEK DIVIDE 9000 35.1 28.0 125 32.5 27.8 117 THUMB DIVIDE 7980 31.8 17.0 187 -M 21.1 * TOGWOTEE PASS 9580 33.7 24.9 135 -M 28.7 * TWO OCEAN PLATEAU 9360 44.9 26.6 169 -M 31.2 * WILLOW CREEK 8450 41.7 30.3 138 41.0 32.6 126 ----- ----- Basin wide percent of average 146 134 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 30.1 23.6 128 30.0 18.0 167 BLACK BEAR 7950 -M 38.1 * -M 40.8 * CANYON 7940 23.3 13.0 179 26.3 14.3 184 FISHER CREEK 9100 55.8 35.7 156 -M 36.7 * MADISON PLATEAU 7750 41.6 24.6 169 42.0 26.4 159 NORTHEAST ENTRANCE 7350 12.1 9.2 132 19.3 11.8 164 PARKER PEAK 9400 31.2 21.6 144 -M 15.5 * SYLVAN LAKE 8420 32.3 22.1 146 32.5 19.1 170 THUMB DIVIDE 7980 31.8 17.0 187 -M 21.1 * TWO OCEAN PLATEAU 9360 44.9 26.6 169 -M 31.2 * WHISKEY CREEK 6800 25.5 17.3 147 31.6 21.9 144 WHITE MILL 8700 38.2 24.9 153 -M 28.4 * WOLVERINE 7650 14.0 11.6 121 15.4 12.7 121 ----- ----- Basin wide percent of average 154 159 WIND RIVER BURROUGHS CREEK 8750 23.7 14.9 159 25.7 16.5 156 CHRISTINA LAKE 9980 19.4 15.2 128 23.0 16.6 139 COLD SPRINGS 9630 10.0 8.3 120 11.9 10.5 113 HOBBS PARK 10100 17.0 14.9 114 13.3 14.0 95 LITTLE WARM 9620 17.9 11.5 156 19.9 13.1 152 SOUTH PASS 9040 24.5 16.3 150 24.5 16.9 145 ST. LAWRENCE ALT 8620 8.8 7.5 117 10.6 10.1 105 TOGWOTEE PASS 9580 33.7 24.9 135 -M 28.7 * TOWNSEND CREEK 8700 9.8 9.8 100 11.7 12.3 95 ----- ----- Basin wide percent of average 134 128 BIGHORN BASIN BALD MTN. 9375 21.9 20.3 108 18.3 17.2 106 BEAR TRAP MEADOW 7900 7.3 7.1 103 8.4 8.1 104 BLACKWATER 9780 37.6 22.1 170 28.7 17.9 160 BONE SPRINGS DIV 9350 18.6 16.3 114 16.2 14.9 109 EVENING STAR 9200 40.9 26.9 152 39.6 22.5 176 GRAVE SPRINGS 8550 12.4 -M * 11.1 9.5 117 KIRWIN 9550 14.4 9.9 145 15.8 10.7 148 LOST CREEK 8080 15.7 13.5 116 15.7 11.6 135 MARQUETTE 8760 11.1 8.0 139 11.3 9.3 122 MIDDLE POWDER 7760 17.2 12.0 143 14.9 11.6 128 OWL CREEK 8975 8.1 4.5 180 6.6 6.1 108 POWDER RIVER PASS 9480 8.6 10.8 80 13.3 11.4 117 SHELL CREEK 9580 17.4 14.9 117 14.5 12.9 112 SYLVAN LAKE 8420 32.3 22.1 146 32.5 19.1 170 SYLVAN ROAD 8120 20.4 12.5 163 26.8 16.0 168 TIMBER CREEK 7950 7.3 6.2 118 8.0 6.9 116 YOUNTS PEAK 8350 24.0 17.1 140 -M 16.5 * ----- ----- Basin wide percent of average 135 137 SHOSHONE RIVER BLACKWATER 9780 37.6 22.1 170 28.7 17.9 160 EVENING STAR 9200 40.9 26.9 152 39.6 22.5 176 KIRWIN 9550 14.4 9.9 145 15.8 10.7 148 MARQUETTE 8760 11.1 8.0 139 11.3 9.3 122 SYLVAN LAKE 8420 32.3 22.1 146 32.5 19.1 170 SYLVAN ROAD 8120 20.4 12.5 163 26.8 16.0 168 YOUNTS PEAK 8350 24.0 17.1 140 -M 16.5 * ----- ----- Basin wide percent of average 152 162 POWDER-TONGUE BEAR TRAP MEADOW 7900 7.3 7.1 103 8.4 8.1 104 BONE SPRINGS DIV 9350 18.6 16.3 114 16.2 14.9 109 BURGESS JUNCTION 7880 13.5 11.7 115 13.0 11.3 115 CLOUD PEAK RESERVOIR 9860 17.8 14.7 121 15.1 13.1 115 DOME LAKE 8880 12.9 13.6 95 14.2 13.0 109 GRAVE SPRINGS 8550 12.4 -M * 11.1 9.5 117 HANSEN SAWMILL 8760 7.2 7.0 103 8.4 7.8 108 LOST CREEK 8080 15.7 13.5 116 15.7 11.6 135 MIDDLE POWDER 7760 17.2 12.0 143 14.9 11.6 128 POWDER RIVER PASS 9480 8.6 10.8 80 13.3 11.4 117 SUCKER CREEK 8880 14.5 12.0 121 14.9 12.9 116 TIE CREEK 6870 7.5 -M * 12.2 10.8 113 ----- ----- Basin wide percent of average 112 116 BELLE FOURCHE BLIND PARK 6890 9.7 11.0 88 14.6 9.8 149 NORTH RAPID CREEK 6130 9.3 -M * 12.7 -M * WARREN PEAK 6520 18.0 11.0 164 -M 7.9 * ----- ----- Basin wide percent of average 126 149* UPPER N. PLATTE RIVER COLUMBINE 9400 28.1 24.7 114 30.1 24.2 124 DIVIDE PEAK 8800 25.6 21.0 122 23.9 22.5 106 ELK RIVER 8700 26.3 19.8 133 24.0 19.0 126 JOE WRIGHT 10120 24.3 21.8 111 28.4 24.7 115 NORTH FRENCH CREEK 10100 35.0 25.3 138 27.6 23.2 119 OLD BATTLE 10000 39.0 31.8 123 36.7 29.8 123 SOUTH BRUSH CREEK 8400 13.9 13.1 106 17.2 16.1 107 TOWER 10500 53.5 44.9 119 46.9 35.8 131 WEBBER SPRINGS 9200 30.7 27.9 110 35.1 24.9 141 WILLOW CREEK PASS 9540 17.4 11.8 147 14.0 12.4 113 ----- ----- Basin wide percent of average 121 122 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 35.0 26.0 135 26.9 19.1 141 CASPER MTN. 7900 21.3 16.3 131 20.0 13.8 145 CHRISTINA LAKE 9980 19.4 15.2 128 23.0 16.6 139 DEADMAN HILL 10220 15.7 16.4 96 17.8 16.5 108 LAPRELE CREEK 8320 14.9 10.5 142 14.0 11.6 121 RENO HILL 8400 22.3 14.2 157 19.4 18.9 103 ROACH 9700 22.9 17.2 133 21.1 20.9 101 SAND LAKE 10080 36.9 32.7 113 28.8 20.1 143 SOUTH PASS 9040 24.5 16.3 150 24.5 16.9 145 WINDY PEAK 7840 10.5 8.7 121 11.1 9.3 119 ----- ----- Basin wide percent of average 129 126 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 14.5 11.2 129 27.7 15.1 183 DIVIDE PEAK 8800 25.6 21.0 122 23.9 22.5 106 OLD BATTLE 10000 39.0 31.8 123 36.7 29.8 123 SANDSTONE RS 8150 18.0 14.8 122 21.6 18.4 117 WHISKEY PARK 8950 36.5 28.7 127 32.5 27.8 117 ----- ----- Basin wide percent of average 124 125 UPPER GREEN RIVER BIG SANDY OPENING 9100 18.9 14.5 130 19.9 16.5 121 BLIND BULL SUM 8650 42.1 29.5 143 32.8 24.4 134 EAST RIM DIVIDE 7930 16.9 13.9 122 17.2 15.4 112 ELKHART PARK G.S. 9400 18.1 13.8 131 18.5 16.2 114 GROS VENTRE SUMMIT 8775 22.6 15.6 145 21.4 16.2 132 KENDALL R.S. 7740 24.3 14.7 165 23.8 15.8 151 LOOMIS PARK 8240 -M 17.5 * 27.3 19.1 143 NEW FORK LAKE 8340 15.1 11.2 135 13.3 14.7 90 SNIDER BASIN 8250 23.4 14.8 158 19.3 15.4 125 SPRING CREEK DIVIDE 9000 35.1 28.0 125 32.5 27.8 117 TRIPLE PEAK 8500 37.0 25.7 144 37.5 31.5 119 ----- ----- Basin wide percent of average 140 124 LOWER GREEN RIVER HAMS FORK 7840 16.1 12.3 131 14.7 13.6 108 HEWINTA 9500 10.7 11.3 95 14.0 12.9 109 HICKERSON PARK 9150 8.1 6.8 119 9.2 9.4 98 HOLE-IN-ROCK 9150 6.5 6.4 102 9.6 9.4 102 INDIAN CREEK 9425 39.2 28.7 137 31.5 26.3 120 KELLEY R.S. 8180 24.1 17.1 141 25.9 19.0 136 STEEL CREEK PARK 10100 16.0 16.3 98 15.6 12.6 124 ----- ----- Basin wide percent of average 122 117 UPPER BEAR RIVER BUG LAKE 7950 33.3 21.0 159 29.3 19.4 151 HAYDEN FORK 9400 18.0 16.4 110 25.1 18.8 134 KELLEY R.S. 8180 24.1 17.1 141 25.9 19.0 136 LILY LAKE 9050 17.1 13.2 130 19.3 14.6 132 MONTE CRISTO 8960 39.6 29.5 134 32.9 25.4 130 SALT RIVER SUMMIT 7600 21.8 14.4 151 23.5 17.2 137 TRIAL LAKE 9960 34.1 24.8 138 34.5 23.7 146 ----- ----- Basin wide percent of average 138 138 ----------------------------------------------------------------------------- -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.