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 14 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 28.9 16.6 174 32.6 21.2 154 COTTONWOOD CREEK 7600 29.1 21.4 136 30.4 23.7 128 GRANITE CREEK 6770 28.2 17.0 166 23.2 22.3 104 GRASSY LAKE 7265 43.6 32.8 133 38.9 34.8 112 GROS VENTRE SUMMIT 8775 20.6 14.3 144 19.3 15.1 128 LEWIS LAKE DIVIDE 7860 50.1 32.6 154 -M 35.4 * PHILLIPS BENCH 8200 38.4 26.8 143 42.8 28.0 153 SALT RIVER SUMMIT 7600 21.1 13.2 160 22.5 16.0 141 SNAKE RIVER STATION 6920 27.3 17.6 155 34.2 24.4 140 SPRING CREEK DIVIDE 9000 32.9 25.6 129 -M 25.8 * THUMB DIVIDE 7980 30.7 15.7 196 -M 19.8 * TOGWOTEE PASS 9580 32.5 22.8 143 -M 26.5 * TWO OCEAN PLATEAU 9360 41.4 24.5 169 -M 29.3 * WILLOW CREEK 8450 38.1 28.2 135 38.3 30.4 126 ----- ----- Basin wide percent of average 150 131 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 33.1 21.7 153 -M 16.4 * BLACK BEAR 7950 -M 35.0 * -M 36.9 * CANYON 7940 22.6 11.8 192 25.0 13.1 191 FISHER CREEK 9100 52.3 32.9 159 -M 33.4 * MADISON PLATEAU 7750 39.5 22.6 175 40.5 23.9 169 NORTHEAST ENTRANCE 7350 12.1 8.8 138 18.2 10.9 167 PARKER PEAK 9400 29.9 19.9 150 -M 14.2 * SYLVAN LAKE 8420 29.7 20.3 146 -M 17.6 * THUMB DIVIDE 7980 30.7 15.7 196 -M 19.8 * TWO OCEAN PLATEAU 9360 41.4 24.5 169 -M 29.3 * WHISKEY CREEK 6800 24.1 15.9 152 30.0 19.8 152 WHITE MILL 8700 35.6 23.3 153 -M 25.9 * WOLVERINE 7650 14.6 10.9 134 14.7 11.8 125 ----- ----- Basin wide percent of average 160 162* WIND RIVER BURROUGHS CREEK 8750 22.6 14.1 160 -M 15.1 * CHRISTINA LAKE 9980 18.7 13.9 135 21.1 14.8 143 COLD SPRINGS 9630 9.8 7.7 127 10.9 9.3 117 HOBBS PARK 10100 15.8 13.4 118 12.6 12.5 101 LITTLE WARM 9620 15.7 10.3 152 17.2 11.8 146 SOUTH PASS 9040 24.9 15.1 165 23.4 15.2 154 ST. LAWRENCE ALT 8620 8.7 6.9 126 9.9 8.9 111 TOGWOTEE PASS 9580 32.5 22.8 143 -M 26.5 * TOWNSEND CREEK 8700 9.4 8.9 106 10.6 10.9 97 ----- ----- Basin wide percent of average 140 127 BIGHORN BASIN BALD MTN. 9375 20.5 18.7 110 17.1 15.5 110 BEAR TRAP MEADOW 7900 7.1 6.5 109 7.3 7.1 103 BLACKWATER 9780 35.3 20.0 176 26.6 16.4 162 BONE SPRINGS DIV 9350 16.8 14.8 114 15.2 13.1 116 EVENING STAR 9200 39.2 24.6 159 -M 20.6 * GRAVE SPRINGS 8550 10.6 -M * 9.9 8.3 119 KIRWIN 9550 13.4 8.9 151 15.0 9.5 158 LOST CREEK 8080 14.2 11.9 119 13.8 10.3 134 MARQUETTE 8760 9.9 7.2 138 10.3 8.1 127 MIDDLE POWDER 7760 14.5 10.8 134 12.8 10.3 124 OWL CREEK 8975 7.4 4.1 180 5.9 5.4 109 POWDER RIVER PASS 9480 13.2 9.8 135 12.5 10.3 121 SHELL CREEK 9580 16.4 13.7 120 13.7 11.6 118 SYLVAN LAKE 8420 29.7 20.3 146 -M 17.6 * SYLVAN ROAD 8120 19.9 12.2 163 25.6 14.7 174 TIMBER CREEK 7950 6.8 5.5 124 7.5 5.9 127 YOUNTS PEAK 8350 22.3 15.9 140 -M 15.1 * ----- ----- Basin wide percent of average 140 132 SHOSHONE RIVER BLACKWATER 9780 35.3 20.0 176 26.6 16.4 162 EVENING STAR 9200 39.2 24.6 159 -M 20.6 * KIRWIN 9550 13.4 8.9 151 15.0 9.5 158 MARQUETTE 8760 9.9 7.2 138 10.3 8.1 127 SYLVAN LAKE 8420 29.7 20.3 146 -M 17.6 * SYLVAN ROAD 8120 19.9 12.2 163 25.6 14.7 174 YOUNTS PEAK 8350 22.3 15.9 140 -M 15.1 * ----- ----- Basin wide percent of average 156 159 POWDER-TONGUE BEAR TRAP MEADOW 7900 7.1 6.5 109 7.3 7.1 103 BONE SPRINGS DIV 9350 16.8 14.8 114 15.2 13.1 116 BURGESS JUNCTION 7880 11.2 10.6 106 11.2 9.8 114 CLOUD PEAK RESERVOIR 9860 16.3 12.9 126 13.6 11.6 117 DOME LAKE 8880 11.5 12.4 93 13.1 11.6 113 GRAVE SPRINGS 8550 10.6 -M * 9.9 8.3 119 HANSEN SAWMILL 8760 7.2 6.4 112 7.8 6.8 115 LOST CREEK 8080 14.2 11.9 119 13.8 10.3 134 MIDDLE POWDER 7760 14.5 10.8 134 12.8 10.3 124 POWDER RIVER PASS 9480 13.2 9.8 135 12.5 10.3 121 SUCKER CREEK 8880 13.0 10.8 120 12.6 11.6 109 TIE CREEK 6870 7.6 -M * 10.3 9.4 110 ----- ----- Basin wide percent of average 117 117 BELLE FOURCHE BLIND PARK 6890 9.9 10.0 99 13.7 8.6 159 NORTH RAPID CREEK 6130 -M -M * -M -M * WARREN PEAK 6520 16.4 10.0 164 -M 7.0 * ----- ----- Basin wide percent of average 132 159* UPPER N. PLATTE RIVER COLUMBINE 9400 28.9 23.2 125 28.7 22.2 129 DIVIDE PEAK 8800 23.6 18.6 127 22.6 20.4 111 ELK RIVER 8700 26.7 18.3 146 23.9 17.1 140 JOE WRIGHT 10120 21.6 19.4 111 26.6 22.2 120 NORTH FRENCH CREEK 10100 33.0 22.7 145 29.6 20.8 142 OLD BATTLE 10000 33.9 28.5 119 33.0 26.9 123 SOUTH BRUSH CREEK 8400 14.2 11.1 128 16.1 14.3 113 TOWER 10500 51.7 40.9 126 36.7 32.6 113 WEBBER SPRINGS 9200 29.4 24.7 119 33.8 22.6 150 WILLOW CREEK PASS 9540 16.7 10.4 161 13.7 11.0 125 ----- ----- Basin wide percent of average 128 126 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 31.6 22.4 141 24.3 17.1 142 CASPER MTN. 7900 19.2 13.8 139 17.8 12.1 147 CHRISTINA LAKE 9980 18.7 13.9 135 21.1 14.8 143 DEADMAN HILL 10220 14.5 14.9 97 16.6 14.6 114 LAPRELE CREEK 8320 13.5 9.3 145 13.4 10.2 131 RENO HILL 8400 19.9 12.2 163 17.0 16.5 103 ROACH 9700 20.6 15.5 133 20.4 18.9 108 SAND LAKE 10080 33.5 29.6 113 26.3 18.1 145 SOUTH PASS 9040 24.9 15.1 165 23.4 15.2 154 WINDY PEAK 7840 9.9 7.5 132 10.2 8.1 126 ----- ----- Basin wide percent of average 134 131 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 17.2 10.7 161 17.6 13.7 128 DIVIDE PEAK 8800 23.6 18.6 127 22.6 20.4 111 OLD BATTLE 10000 33.9 28.5 119 33.0 26.9 123 SANDSTONE RS 8150 19.7 13.5 146 21.2 16.7 127 WHISKEY PARK 8950 37.0 26.1 142 31.1 24.9 125 ----- ----- Basin wide percent of average 135 122 UPPER GREEN RIVER BIG SANDY OPENING 9100 18.1 13.3 136 20.0 15.4 130 BLIND BULL SUM 8650 39.5 26.9 147 31.1 22.5 138 EAST RIM DIVIDE 7930 16.3 13.1 124 16.4 14.4 114 ELKHART PARK G.S. 9400 17.3 12.7 136 17.5 15.1 116 GROS VENTRE SUMMIT 8775 20.6 14.3 144 19.3 15.1 128 KENDALL R.S. 7740 23.6 14.3 165 18.2 14.7 124 LOOMIS PARK 8240 -M 16.4 * 20.4 17.8 115 NEW FORK LAKE 8340 14.2 10.6 134 12.7 13.7 93 SNIDER BASIN 8250 22.2 13.9 160 18.5 14.4 128 SPRING CREEK DIVIDE 9000 32.9 25.6 129 -M 25.8 * TRIPLE PEAK 8500 34.2 23.7 144 35.0 29.5 119 ----- ----- Basin wide percent of average 142 121 LOWER GREEN RIVER HAMS FORK 7840 16.9 11.8 143 14.1 12.7 111 HEWINTA 9500 12.7 9.9 128 13.7 11.4 120 HICKERSON PARK 9150 7.3 5.7 128 8.9 8.2 109 HOLE-IN-ROCK 9150 8.2 5.4 152 9.3 8.2 113 INDIAN CREEK 9425 37.4 25.9 144 30.0 24.2 124 KELLEY R.S. 8180 22.9 15.8 145 24.7 17.8 139 STEEL CREEK PARK 10100 15.2 14.2 107 14.9 11.3 132 ----- ----- Basin wide percent of average 136 123 UPPER BEAR RIVER BUG LAKE 7950 31.8 18.8 169 28.5 17.5 163 HAYDEN FORK 9400 20.2 15.3 132 24.5 16.8 146 KELLEY R.S. 8180 22.9 15.8 145 24.7 17.8 139 LILY LAKE 9050 17.8 11.7 152 18.7 13.0 144 MONTE CRISTO 8960 38.5 26.2 147 31.8 22.9 139 SALT RIVER SUMMIT 7600 21.1 13.2 160 22.5 16.0 141 TRIAL LAKE 9960 35.7 23.5 152 34.2 21.5 159 ----- ----- Basin wide percent of average 151 147 ----------------------------------------------------------------------------- -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.