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: JANUARY 21 , 1997 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 18.6 10.9 171 23.1 14.5 159 COTTONWOOD CREEK 7600 20.3 12.4 164 22.4 15.4 145 GRANITE CREEK 6770 20.7 10.7 193 22.5 15.3 147 GRASSY LAKE 7265 -M 20.1 * -M 23.5 * GROS VENTRE SUMMIT 8775 15.5 9.4 165 13.2 10.3 128 LEWIS LAKE DIVIDE 7860 37.3 19.8 188 36.1 23.9 151 PHILLIPS BENCH 8200 27.6 16.7 165 27.8 18.8 148 SALT RIVER SUMMIT 7600 15.2 7.7 197 16.9 11.0 154 SNAKE RIVER STATION 6920 16.4 10.8 152 23.6 16.5 143 SPRING CREEK DIVIDE 9000 26.3 15.9 165 20.1 17.2 117 THUMB DIVIDE 7980 23.4 10.0 234 21.0 13.6 154 TOGWOTEE PASS 9580 23.8 15.0 159 21.7 17.9 121 TWO OCEAN PLATEAU 9360 31.0 16.4 189 29.0 20.0 145 WILLOW CREEK 8450 29.0 18.3 158 30.3 20.2 150 ----- ----- Basin wide percent of average 175 143 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 24.9 14.5 172 20.6 10.8 191 BLACK BEAR 7950 43.8 21.5 204 -M 23.2 * CANYON 7940 16.4 7.3 225 17.7 8.8 201 FISHER CREEK 9100 40.0 21.4 187 35.8 21.5 167 MADISON PLATEAU 7750 28.0 14.1 199 -M 15.3 * NORTHEAST ENTRANCE 7350 7.9 5.6 141 13.9 7.4 188 PARKER PEAK 9400 22.0 13.1 168 15.2 9.5 160 SYLVAN LAKE 8420 21.8 13.5 161 19.9 12.0 166 THUMB DIVIDE 7980 23.4 10.0 234 21.0 13.6 154 TWO OCEAN PLATEAU 9360 31.0 16.4 189 29.0 20.0 145 WHISKEY CREEK 6800 16.7 9.8 170 23.3 12.7 183 WHITE MILL 8700 27.0 15.1 179 -M 17.0 * WOLVERINE 7650 10.6 7.0 151 11.0 7.9 139 ----- ----- Basin wide percent of average 185 167 WIND RIVER BURROUGHS CREEK 8750 17.3 9.3 186 16.9 10.2 166 CHRISTINA LAKE 9980 14.7 9.4 156 17.1 10.0 171 COLD SPRINGS 9630 7.2 5.3 136 7.9 6.4 123 HOBBS PARK 10100 12.2 9.3 131 9.5 8.4 113 LITTLE WARM 9620 12.6 6.5 194 13.7 8.1 169 SOUTH PASS 9040 -M 10.3 * 18.4 9.8 188 ST. LAWRENCE ALT 8620 5.7 4.3 133 6.7 5.8 116 TOGWOTEE PASS 9580 23.8 15.0 159 21.7 17.9 121 TOWNSEND CREEK 8700 7.2 5.6 129 8.4 7.1 118 ----- ----- Basin wide percent of average 156 144 BIGHORN BASIN BALD MTN. 9375 14.2 12.6 113 11.6 10.6 109 BEAR TRAP MEADOW 7900 5.2 4.4 118 5.5 5.0 110 BLACKWATER 9780 25.8 12.6 205 19.0 11.0 173 BONE SPRINGS DIV 9350 11.8 9.7 122 10.7 8.5 126 EVENING STAR 9200 28.4 16.2 175 -M 13.7 * GRAVE SPRINGS 8550 8.6 -M * 8.3 5.9 141 KIRWIN 9550 10.9 6.1 179 12.0 6.2 194 LOST CREEK 8080 10.3 7.3 141 11.0 7.0 157 MARQUETTE 8760 7.1 4.7 151 7.5 5.4 139 MIDDLE POWDER 7760 10.9 7.2 151 10.1 7.2 140 OWL CREEK 8975 -M 2.5 * 4.3 3.4 126 POWDER RIVER PASS 9480 7.3 6.4 114 8.1 7.0 116 SHELL CREEK 9580 11.2 9.4 119 8.8 8.0 110 SYLVAN LAKE 8420 21.8 13.5 161 19.9 12.0 166 SYLVAN ROAD 8120 13.5 7.5 180 19.4 10.0 194 TIMBER CREEK 7950 4.1 3.2 128 4.6 3.9 118 YOUNTS PEAK 8350 15.6 11.1 141 19.3 10.1 191 ----- ----- Basin wide percent of average 150 149 SHOSHONE RIVER BLACKWATER 9780 25.8 12.6 205 19.0 11.0 173 EVENING STAR 9200 28.4 16.2 175 -M 13.7 * KIRWIN 9550 10.9 6.1 179 12.0 6.2 194 MARQUETTE 8760 7.1 4.7 151 7.5 5.4 139 SYLVAN LAKE 8420 21.8 13.5 161 19.9 12.0 166 SYLVAN ROAD 8120 13.5 7.5 180 19.4 10.0 194 YOUNTS PEAK 8350 15.6 11.1 141 19.3 10.1 191 ----- ----- Basin wide percent of average 172 178 POWDER-TONGUE BEAR TRAP MEADOW 7900 5.2 4.4 118 5.5 5.0 110 BONE SPRINGS DIV 9350 11.8 9.7 122 10.7 8.5 126 BURGESS JUNCTION 7880 8.5 6.9 123 8.7 6.6 132 CLOUD PEAK RESERVOIR 9860 12.2 7.2 169 9.9 7.4 134 DOME LAKE 8880 8.0 8.1 99 8.8 8.1 109 GRAVE SPRINGS 8550 8.6 -M * 8.3 5.9 141 HANSEN SAWMILL 8760 4.6 4.1 112 5.3 4.6 115 LOST CREEK 8080 10.3 7.3 141 11.0 7.0 157 MIDDLE POWDER 7760 10.9 7.2 151 10.1 7.2 140 POWDER RIVER PASS 9480 7.3 6.4 114 8.1 7.0 116 SUCKER CREEK 8880 9.7 6.7 145 9.8 7.9 124 TIE CREEK 6870 5.6 -M * 7.9 6.3 125 ----- ----- Basin wide percent of average 130 128 BELLE FOURCHE BLIND PARK 6890 7.6 6.6 115 11.9 5.6 213 NORTH RAPID CREEK 6130 8.0 -M * 10.4 -M * WARREN PEAK 6520 13.3 6.6 202 -M 4.7 * ----- ----- Basin wide percent of average 158 213* UPPER N. PLATTE RIVER COLUMBINE 9400 15.5 13.9 112 22.5 14.4 156 DIVIDE PEAK 8800 17.1 12.1 141 17.6 14.6 121 ELK RIVER 8700 19.4 11.0 176 18.7 11.2 167 JOE WRIGHT 10120 17.0 12.8 133 21.2 14.8 143 NORTH FRENCH CREEK 10100 23.4 14.4 163 21.5 13.6 158 OLD BATTLE 10000 28.9 18.5 156 27.0 17.6 153 SOUTH BRUSH CREEK 8400 -M 6.3 * 12.9 10.4 124 TOWER 10500 -M 26.5 * -M 21.5 * WEBBER SPRINGS 9200 21.6 15.7 138 25.2 15.4 164 WILLOW CREEK PASS 9540 13.1 6.8 193 10.7 7.2 149 ----- ----- Basin wide percent of average 148 149 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 23.2 14.7 158 -M 10.9 * CASPER MTN. 7900 13.1 8.6 152 13.0 8.1 160 CHRISTINA LAKE 9980 14.7 9.4 156 17.1 10.0 171 DEADMAN HILL 10220 10.8 10.1 107 12.1 9.3 130 LAPRELE CREEK 8320 10.3 6.0 172 9.8 6.7 146 RENO HILL 8400 11.5 7.7 149 12.6 10.8 117 ROACH 9700 15.2 9.9 154 15.8 12.8 123 SAND LAKE 10080 24.7 19.1 129 19.6 11.7 168 SOUTH PASS 9040 -M 10.3 * 18.4 9.8 188 WINDY PEAK 7840 6.7 4.0 168 8.4 5.3 158 ----- ----- Basin wide percent of average 145 150 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 11.9 6.5 183 13.6 9.7 140 DIVIDE PEAK 8800 17.1 12.1 141 17.6 14.6 121 OLD BATTLE 10000 28.9 18.5 156 27.0 17.6 153 SANDSTONE RS 8150 14.1 8.3 170 16.4 11.8 139 WHISKEY PARK 8950 24.8 16.5 150 20.9 17.1 122 ----- ----- Basin wide percent of average 156 135 UPPER GREEN RIVER BIG SANDY OPENING 9100 14.2 8.4 169 13.1 10.6 124 BLIND BULL SUM 8650 28.4 16.9 168 20.5 14.7 139 EAST RIM DIVIDE 7930 11.8 8.1 146 12.6 9.9 127 ELKHART PARK G.S. 9400 14.1 7.9 178 14.3 10.4 138 GROS VENTRE SUMMIT 8775 15.5 9.4 165 13.2 10.3 128 KENDALL R.S. 7740 17.1 8.7 197 17.8 10.1 176 LOOMIS PARK 8240 17.5 10.1 173 17.8 12.3 145 NEW FORK LAKE 8340 11.1 6.8 163 10.4 9.4 111 SNIDER BASIN 8250 16.0 8.6 186 14.2 9.9 143 SPRING CREEK DIVIDE 9000 26.3 15.9 165 20.1 17.2 117 TRIPLE PEAK 8500 24.4 15.2 161 26.3 20.2 130 ----- ----- Basin wide percent of average 169 134 LOWER GREEN RIVER HAMS FORK 7840 12.3 6.9 178 11.1 8.7 128 HEWINTA 9500 9.0 5.5 164 9.7 7.7 126 HICKERSON PARK 9150 5.4 3.2 169 6.4 5.6 114 HOLE-IN-ROCK 9150 5.8 2.9 200 6.8 5.6 121 INDIAN CREEK 9425 28.3 15.9 178 19.9 16.3 122 KELLEY R.S. 8180 17.9 9.3 192 21.5 12.2 176 STEEL CREEK PARK 10100 11.0 9.0 122 10.8 8.0 135 ----- ----- Basin wide percent of average 170 134 UPPER BEAR RIVER BUG LAKE 7950 21.6 11.6 186 21.8 11.6 188 HAYDEN FORK 9400 13.9 9.2 151 18.3 10.8 169 KELLEY R.S. 8180 17.9 9.3 192 21.5 12.2 176 LILY LAKE 9050 12.6 7.5 168 14.0 8.7 161 MONTE CRISTO 8960 28.4 15.4 184 23.8 15.0 159 SALT RIVER SUMMIT 7600 15.2 7.7 197 16.9 11.0 154 TRIAL LAKE 9960 24.7 14.4 172 -M 13.7 * ----- ----- Basin wide percent of average 179 168 ----------------------------------------------------------------------------- -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.