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 MONDAY: JANUARY 13 , 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 9.8 190 23.0 13.2 174 COTTONWOOD CREEK 7600 20.4 11.1 184 22.4 14.0 160 GRANITE CREEK 6770 20.4 9.4 217 22.4 13.9 161 GRASSY LAKE 7265 -M 17.9 * -M 21.4 * GROS VENTRE SUMMIT 8775 15.2 8.4 181 13.1 9.4 139 LEWIS LAKE DIVIDE 7860 35.1 17.6 199 35.5 21.8 163 PHILLIPS BENCH 8200 -M 14.8 * -M 17.0 * SALT RIVER SUMMIT 7600 15.1 6.7 225 16.4 10.0 164 SNAKE RIVER STATION 6920 16.7 9.7 172 -M 15.0 * SPRING CREEK DIVIDE 9000 25.2 14.3 176 19.9 15.7 127 THUMB DIVIDE 7980 22.9 9.0 254 21.0 12.4 169 TOGWOTEE PASS 9580 23.7 13.5 176 21.5 16.2 133 TWO OCEAN PLATEAU 9360 30.6 14.9 205 28.5 18.2 157 WILLOW CREEK 8450 29.5 16.2 182 27.6 18.4 150 ----- ----- Basin wide percent of average 194 154 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 24.0 13.4 179 19.6 9.9 198 BLACK BEAR 7950 46.1 19.2 240 -M 20.8 * CANYON 7940 16.1 6.6 244 17.3 8.1 214 FISHER CREEK 9100 39.8 19.2 207 34.7 19.3 180 MADISON PLATEAU 7750 -M 12.6 * -M 13.9 * NORTHEAST ENTRANCE 7350 7.7 5.0 154 13.6 6.8 200 PARKER PEAK 9400 21.5 12.1 178 14.5 8.7 167 SYLVAN LAKE 8420 21.6 12.5 173 19.6 11.1 177 THUMB DIVIDE 7980 22.9 9.0 254 21.0 12.4 169 TWO OCEAN PLATEAU 9360 30.6 14.9 205 28.5 18.2 157 WHISKEY CREEK 6800 16.4 8.7 189 24.6 11.5 214 WHITE MILL 8700 26.3 13.7 192 -M 15.3 * WOLVERINE 7650 9.7 6.3 154 11.1 7.3 152 ----- ----- Basin wide percent of average 201 180 WIND RIVER BURROUGHS CREEK 8750 16.8 8.5 198 16.6 9.3 178 CHRISTINA LAKE 9980 13.6 8.7 156 15.6 9.4 166 COLD SPRINGS 9630 6.3 5.0 126 7.7 6.0 128 HOBBS PARK 10100 11.5 8.7 132 9.1 7.8 117 LITTLE WARM 9620 12.0 6.0 200 12.9 7.5 172 SOUTH PASS 9040 18.4 9.6 192 17.6 9.1 193 ST. LAWRENCE ALT 8620 5.4 3.9 138 6.6 5.5 120 TOGWOTEE PASS 9580 23.7 13.5 176 21.5 16.2 133 TOWNSEND CREEK 8700 6.2 5.2 119 7.5 6.6 114 ----- ----- Basin wide percent of average 165 149 BIGHORN BASIN BALD MTN. 9375 13.6 11.7 116 11.2 9.9 113 BEAR TRAP MEADOW 7900 4.1 4.1 100 4.7 4.7 100 BLACKWATER 9780 24.6 11.6 212 17.9 10.1 177 BONE SPRINGS DIV 9350 11.0 9.0 122 9.9 7.9 125 EVENING STAR 9200 27.9 15.0 186 24.9 12.5 199 GRAVE SPRINGS 8550 7.9 -M * 7.9 5.6 141 KIRWIN 9550 10.3 5.8 178 12.0 5.8 207 LOST CREEK 8080 9.8 6.7 146 10.3 6.5 158 MARQUETTE 8760 6.6 4.4 150 7.0 5.1 137 MIDDLE POWDER 7760 10.4 6.6 158 9.5 6.7 142 OWL CREEK 8975 4.5 2.3 196 3.8 3.2 119 POWDER RIVER PASS 9480 -M 5.9 * 7.8 6.5 120 SHELL CREEK 9580 10.6 8.7 122 8.7 7.4 118 SYLVAN LAKE 8420 21.6 12.5 173 19.6 11.1 177 SYLVAN ROAD 8120 13.0 6.8 191 19.5 9.2 212 TIMBER CREEK 7950 4.1 2.9 141 4.6 3.6 128 YOUNTS PEAK 8350 15.4 10.3 150 24.2 9.3 260 ----- ----- Basin wide percent of average 158 163 SHOSHONE RIVER BLACKWATER 9780 24.6 11.6 212 17.9 10.1 177 EVENING STAR 9200 27.9 15.0 186 24.9 12.5 199 KIRWIN 9550 10.3 5.8 178 12.0 5.8 207 MARQUETTE 8760 6.6 4.4 150 7.0 5.1 137 SYLVAN LAKE 8420 21.6 12.5 173 19.6 11.1 177 SYLVAN ROAD 8120 13.0 6.8 191 19.5 9.2 212 YOUNTS PEAK 8350 15.4 10.3 150 24.2 9.3 260 ----- ----- Basin wide percent of average 180 198 POWDER-TONGUE BEAR TRAP MEADOW 7900 4.1 4.1 100 4.7 4.7 100 BONE SPRINGS DIV 9350 11.0 9.0 122 9.9 7.9 125 BURGESS JUNCTION 7880 7.5 6.4 117 7.7 6.2 124 CLOUD PEAK RESERVOIR 9860 11.7 6.5 180 9.9 6.9 143 DOME LAKE 8880 7.4 7.4 100 8.8 7.6 116 GRAVE SPRINGS 8550 7.9 -M * 7.9 5.6 141 HANSEN SAWMILL 8760 4.5 3.8 118 5.2 4.3 121 LOST CREEK 8080 9.8 6.7 146 10.3 6.5 158 MIDDLE POWDER 7760 10.4 6.6 158 9.5 6.7 142 POWDER RIVER PASS 9480 -M 5.9 * 7.8 6.5 120 SUCKER CREEK 8880 9.1 6.1 149 8.5 7.3 116 TIE CREEK 6870 5.0 -M * 7.3 5.9 124 ----- ----- Basin wide percent of average 133 128 BELLE FOURCHE BLIND PARK 6890 7.4 6.1 121 11.3 5.3 213 NORTH RAPID CREEK 6130 7.3 -M * 10.0 -M * WARREN PEAK 6520 12.3 6.1 202 7.7 4.4 175 ----- ----- Basin wide percent of average 161 196 UPPER N. PLATTE RIVER COLUMBINE 9400 17.9 12.4 144 17.1 13.0 132 DIVIDE PEAK 8800 16.6 11.1 150 16.5 13.5 122 ELK RIVER 8700 18.8 9.9 190 17.9 10.2 175 JOE WRIGHT 10120 16.6 11.9 139 20.2 13.5 150 NORTH FRENCH CREEK 10100 22.6 13.3 170 20.6 12.5 165 OLD BATTLE 10000 28.8 17.0 169 26.9 16.2 166 SOUTH BRUSH CREEK 8400 -M 5.7 * 12.0 10.2 118 TOWER 10500 40.0 24.2 165 29.0 19.6 148 WEBBER SPRINGS 9200 21.5 14.3 150 24.9 14.5 172 WILLOW CREEK PASS 9540 12.9 6.4 202 10.0 6.8 147 ----- ----- Basin wide percent of average 162 150 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 22.4 13.7 164 16.2 10.0 162 CASPER MTN. 7900 12.7 8.1 157 12.2 7.7 158 CHRISTINA LAKE 9980 13.6 8.7 156 15.6 9.4 166 DEADMAN HILL 10220 10.4 9.3 112 11.7 8.5 138 LAPRELE CREEK 8320 10.1 5.5 184 9.3 6.1 152 RENO HILL 8400 14.7 7.1 207 12.3 10.4 118 ROACH 9700 15.5 9.1 170 15.6 11.7 133 SAND LAKE 10080 23.8 17.6 135 18.8 10.8 174 SOUTH PASS 9040 18.4 9.6 192 17.6 9.1 193 WINDY PEAK 7840 6.6 3.6 183 7.0 4.8 146 ----- ----- Basin wide percent of average 161 154 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 11.1 5.9 188 12.6 8.8 143 DIVIDE PEAK 8800 16.6 11.1 150 16.5 13.5 122 OLD BATTLE 10000 28.8 17.0 169 26.9 16.2 166 SANDSTONE RS 8150 13.6 7.5 181 16.0 10.7 150 WHISKEY PARK 8950 24.2 15.1 160 20.3 15.0 135 ----- ----- Basin wide percent of average 167 144 UPPER GREEN RIVER BIG SANDY OPENING 9100 13.1 7.5 175 11.9 9.6 124 BLIND BULL SUM 8650 27.8 15.3 182 20.5 13.2 155 EAST RIM DIVIDE 7930 11.0 7.2 153 12.0 9.0 133 ELKHART PARK G.S. 9400 13.4 7.2 186 13.6 9.4 145 GROS VENTRE SUMMIT 8775 15.2 8.4 181 13.1 9.4 139 KENDALL R.S. 7740 17.1 7.8 219 17.3 9.2 188 LOOMIS PARK 8240 15.8 9.0 176 17.5 11.2 156 NEW FORK LAKE 8340 10.9 6.0 182 9.8 8.6 114 SNIDER BASIN 8250 15.5 7.6 204 13.5 9.0 150 SPRING CREEK DIVIDE 9000 25.2 14.3 176 19.9 15.7 127 TRIPLE PEAK 8500 24.9 13.6 183 25.6 18.3 140 ----- ----- Basin wide percent of average 183 142 LOWER GREEN RIVER HAMS FORK 7840 12.0 6.0 200 10.7 7.9 135 HEWINTA 9500 8.5 4.9 173 9.5 7.2 132 HICKERSON PARK 9150 5.3 2.9 183 6.1 5.3 115 HOLE-IN-ROCK 9150 5.5 2.6 212 6.4 5.3 121 INDIAN CREEK 9425 27.2 14.3 190 19.2 14.8 130 KELLEY R.S. 8180 17.7 8.3 213 20.2 11.1 182 STEEL CREEK PARK 10100 10.6 8.3 128 10.4 7.5 139 ----- ----- Basin wide percent of average 184 140 UPPER BEAR RIVER BUG LAKE 7950 21.6 10.6 204 21.2 10.8 196 HAYDEN FORK 9400 13.3 8.4 158 17.5 10.0 175 KELLEY R.S. 8180 17.7 8.3 213 20.2 11.1 182 LILY LAKE 9050 12.4 7.1 175 13.3 8.1 164 MONTE CRISTO 8960 27.5 13.8 199 23.0 13.9 165 SALT RIVER SUMMIT 7600 15.1 6.7 225 16.4 10.0 164 TRIAL LAKE 9960 23.9 13.2 181 -M 12.6 * ----- ----- Basin wide percent of average 193 175 ----------------------------------------------------------------------------- -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.