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 TUESDAY: APRIL 8 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 30.0 16.9 178 35.4 23.4 151 COTTONWOOD CREEK 7600 31.5 23.9 132 33.2 26.3 126 GRANITE CREEK 6770 29.1 18.3 159 33.2 24.7 134 GRASSY LAKE 7265 47.5 37.1 128 53.1 39.0 136 GROS VENTRE SUMMIT 8775 23.2 15.9 146 21.8 16.7 131 LEWIS LAKE DIVIDE 7860 52.0 36.3 143 45.8 39.6 116 PHILLIPS BENCH 8200 43.7 30.2 145 46.3 31.3 148 SALT RIVER SUMMIT 7600 21.9 14.2 154 23.9 17.7 135 SNAKE RIVER STATION 6920 27.8 18.7 149 36.8 27.3 135 SPRING CREEK DIVIDE 9000 36.8 28.9 127 33.2 28.7 116 THUMB DIVIDE 7980 32.1 17.3 186 33.7 21.8 155 TOGWOTEE PASS 9580 35.3 26.1 135 34.5 29.7 116 TWO OCEAN PLATEAU 9360 45.9 26.7 172 -M 32.2 * WILLOW CREEK 8450 40.2 31.1 129 44.3 33.7 131 ----- ----- Basin wide percent of average 145 132 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 36.2 24.7 147 31.1 18.9 165 BLACK BEAR 7950 -M 39.4 * -M 42.5 * CANYON 7940 23.3 13.3 175 26.7 14.8 180 FISHER CREEK 9100 56.5 37.0 153 -M 38.3 * MADISON PLATEAU 7750 42.5 25.2 169 42.4 27.4 155 NORTHEAST ENTRANCE 7350 12.3 9.1 135 19.5 12.4 157 PARKER PEAK 9400 32.6 22.5 145 -M 16.3 * SYLVAN LAKE 8420 32.6 23.1 141 33.4 20.0 167 THUMB DIVIDE 7980 32.1 17.3 186 33.7 21.8 155 TWO OCEAN PLATEAU 9360 45.9 26.7 172 -M 32.2 * WHISKEY CREEK 6800 25.6 17.9 143 32.0 22.8 140 WHITE MILL 8700 38.6 25.5 151 -M 29.6 * WOLVERINE 7650 13.5 11.8 114 15.9 13.4 119 ----- ----- Basin wide percent of average 154 155 WIND RIVER BURROUGHS CREEK 8750 24.1 15.2 159 26.0 17.3 150 CHRISTINA LAKE 9980 20.6 16.1 128 24.0 17.6 136 COLD SPRINGS 9630 10.7 8.6 124 13.1 11.2 117 HOBBS PARK 10100 18.7 15.8 118 15.1 14.9 101 LITTLE WARM 9620 18.2 12.6 144 21.0 14.0 150 SOUTH PASS 9040 25.8 17.0 152 25.8 17.9 144 ST. LAWRENCE ALT 8620 9.4 7.4 127 12.1 10.7 113 TOGWOTEE PASS 9580 35.3 26.1 135 34.5 29.7 116 TOWNSEND CREEK 8700 11.0 10.2 108 13.4 13.2 102 ----- ----- Basin wide percent of average 135 126 BIGHORN BASIN BALD MTN. 9375 23.7 21.4 111 19.2 18.2 105 BEAR TRAP MEADOW 7900 7.4 7.1 104 9.4 8.8 107 BLACKWATER 9780 39.0 23.6 165 29.3 18.7 157 BONE SPRINGS DIV 9350 20.2 17.3 117 18.2 15.8 115 EVENING STAR 9200 42.0 28.2 149 40.8 23.4 174 GRAVE SPRINGS 8550 13.5 -M * 12.4 10.3 120 KIRWIN 9550 15.4 10.6 145 16.8 11.4 147 LOST CREEK 8080 17.9 14.5 123 17.2 12.5 138 MARQUETTE 8760 12.7 8.4 151 12.9 10.4 124 MIDDLE POWDER 7760 19.1 12.9 148 16.0 12.5 128 OWL CREEK 8975 8.7 4.7 185 7.0 6.6 106 POWDER RIVER PASS 9480 -M 11.3 * 14.3 12.2 117 SHELL CREEK 9580 19.0 15.6 122 15.9 13.8 115 SYLVAN LAKE 8420 32.6 23.1 141 33.4 20.0 167 SYLVAN ROAD 8120 21.1 11.7 180 27.4 16.8 163 TIMBER CREEK 7950 7.5 6.5 115 8.9 7.7 116 YOUNTS PEAK 8350 24.7 17.8 139 28.5 17.3 165 ----- ----- Basin wide percent of average 139 139 SHOSHONE RIVER BLACKWATER 9780 39.0 23.6 165 29.3 18.7 157 EVENING STAR 9200 42.0 28.2 149 40.8 23.4 174 KIRWIN 9550 15.4 10.6 145 16.8 11.4 147 MARQUETTE 8760 12.7 8.4 151 12.9 10.4 124 SYLVAN LAKE 8420 32.6 23.1 141 33.4 20.0 167 SYLVAN ROAD 8120 21.1 11.7 180 27.4 16.8 163 YOUNTS PEAK 8350 24.7 17.8 139 28.5 17.3 165 ----- ----- Basin wide percent of average 152 160 POWDER-TONGUE BEAR TRAP MEADOW 7900 7.4 7.1 104 9.4 8.8 107 BONE SPRINGS DIV 9350 20.2 17.3 117 18.2 15.8 115 BURGESS JUNCTION 7880 15.8 12.4 127 15.1 12.2 124 CLOUD PEAK RESERVOIR 9860 19.4 15.9 122 16.7 14.2 118 DOME LAKE 8880 15.2 14.3 106 16.2 13.9 117 GRAVE SPRINGS 8550 13.5 -M * 12.4 10.3 120 HANSEN SAWMILL 8760 7.2 7.4 97 9.1 8.5 107 LOST CREEK 8080 17.9 14.5 123 17.2 12.5 138 MIDDLE POWDER 7760 19.1 12.9 148 16.0 12.5 128 POWDER RIVER PASS 9480 -M 11.3 * 14.3 12.2 117 SUCKER CREEK 8880 17.1 12.8 134 17.5 13.9 126 TIE CREEK 6870 8.1 -M * 14.0 11.7 120 ----- ----- Basin wide percent of average 122 120 BELLE FOURCHE BLIND PARK 6890 11.0 11.4 96 16.5 10.9 151 NORTH RAPID CREEK 6130 11.5 -M * 14.6 -M * WARREN PEAK 6520 20.6 11.4 181 -M 8.5 * ----- ----- Basin wide percent of average 139 151* UPPER N. PLATTE RIVER COLUMBINE 9400 29.2 24.7 118 32.0 25.3 126 DIVIDE PEAK 8800 27.9 21.6 129 25.9 23.9 108 ELK RIVER 8700 27.4 20.2 136 26.1 19.9 131 JOE WRIGHT 10120 26.4 23.2 114 30.5 26.2 116 NORTH FRENCH CREEK 10100 36.1 26.9 134 27.6 24.6 112 OLD BATTLE 10000 41.8 34.0 123 39.1 31.5 124 SOUTH BRUSH CREEK 8400 13.5 13.2 102 18.4 17.3 106 TOWER 10500 55.7 47.2 118 48.0 37.8 127 WEBBER SPRINGS 9200 32.0 28.5 112 37.2 26.5 140 WILLOW CREEK PASS 9540 20.4 12.8 159 16.5 13.3 124 ----- ----- Basin wide percent of average 123 122 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 36.5 27.7 132 28.2 20.4 138 CASPER MTN. 7900 25.0 17.8 140 22.5 15.1 149 CHRISTINA LAKE 9980 20.6 16.1 128 24.0 17.6 136 DEADMAN HILL 10220 17.3 17.2 101 19.2 17.7 108 LAPRELE CREEK 8320 15.6 10.3 151 15.8 12.5 126 RENO HILL 8400 25.9 15.0 173 22.7 19.9 114 ROACH 9700 23.1 17.8 130 22.8 22.2 103 SAND LAKE 10080 39.8 34.4 116 30.9 21.4 144 SOUTH PASS 9040 25.8 17.0 152 25.8 17.9 144 WINDY PEAK 7840 11.1 9.1 122 12.3 10.1 122 ----- ----- Basin wide percent of average 132 128 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 14.9 11.1 134 28.7 16.0 179 DIVIDE PEAK 8800 27.9 21.6 129 25.9 23.9 108 OLD BATTLE 10000 41.8 34.0 123 39.1 31.5 124 SANDSTONE RS 8150 18.6 15.2 122 22.5 19.6 115 WHISKEY PARK 8950 38.7 29.9 129 33.8 29.6 114 ----- ----- Basin wide percent of average 127 124 UPPER GREEN RIVER BIG SANDY OPENING 9100 19.5 15.1 129 19.7 17.0 116 BLIND BULL SUM 8650 43.4 30.4 143 33.0 25.1 131 EAST RIM DIVIDE 7930 17.2 14.5 119 17.6 15.9 111 ELKHART PARK G.S. 9400 18.3 14.5 126 19.0 16.7 114 GROS VENTRE SUMMIT 8775 23.2 15.9 146 21.8 16.7 131 KENDALL R.S. 7740 23.7 13.9 171 24.0 16.3 147 LOOMIS PARK 8240 -M 17.3 * 27.8 19.8 140 NEW FORK LAKE 8340 15.5 11.0 141 13.6 15.2 89 SNIDER BASIN 8250 23.8 15.2 157 19.7 15.9 124 SPRING CREEK DIVIDE 9000 36.8 28.9 127 33.2 28.7 116 TRIPLE PEAK 8500 36.4 26.4 138 38.2 32.5 118 ----- ----- Basin wide percent of average 139 122 LOWER GREEN RIVER HAMS FORK 7840 15.3 9.0 170 15.0 14.1 106 HEWINTA 9500 11.6 10.3 113 14.8 13.8 107 HICKERSON PARK 9150 9.9 6.8 146 10.6 10.2 104 HOLE-IN-ROCK 9150 8.2 6.4 128 11.1 10.2 109 INDIAN CREEK 9425 39.9 29.7 134 32.2 27.2 118 KELLEY R.S. 8180 24.8 17.5 142 26.4 19.7 134 STEEL CREEK PARK 10100 17.0 17.3 98 16.6 13.6 122 ----- ----- Basin wide percent of average 131 116 UPPER BEAR RIVER BUG LAKE 7950 33.7 20.7 163 29.6 20.3 146 HAYDEN FORK 9400 18.0 13.7 131 25.9 20.0 130 KELLEY R.S. 8180 24.8 17.5 142 26.4 19.7 134 LILY LAKE 9050 17.9 13.2 136 20.1 15.5 130 MONTE CRISTO 8960 41.1 29.6 139 33.7 26.8 126 SALT RIVER SUMMIT 7600 21.9 14.2 154 23.9 17.7 135 TRIAL LAKE 9960 35.0 25.5 137 35.0 25.0 140 ----- ----- Basin wide percent of average 143 134 ----------------------------------------------------------------------------- -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.