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: NOVEMBER 13 , 1998 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 1.1 1.9 58 2.3 3.8 61 COTTONWOOD CREEK 7600 1.2 2.2 55* 4.4 4.1 107 GRANITE CREEK 6770 .8 1.8 44* 1.7 4.1 41 GRASSY LAKE 7265 2.2 3.2 69* 3.9 6.2 63 GROS VENTRE SUMMIT 8775 2.2 2.2 100 3.2 2.8 114 LEWIS LAKE DIVIDE 7860 2.2 3.5 63* 3.5 6.3 56 PHILLIPS BENCH 8200 1.7 2.7 63* 2.3 4.8 48 SALT RIVER SUMMIT 7600 .8 .9 89* 2.7 3.0 90 SNAKE RIVER STATION 6920 1.1 1.9 58 2.5 4.3 58 SPRING CREEK DIVIDE 9000 1.8 3.4 53 3.4 4.3 79 THUMB DIVIDE 7980 1.8 1.7 106* 2.2 3.5 63 TOGWOTEE PASS 9580 3.9 3.8 103 4.3 4.7 91 TWO OCEAN PLATEAU 9360 4.0 5.1 78 3.6 5.2 69 WILLOW CREEK 8450 1.9 3.1 61* 6.1 5.3 115 ----- ----- Basin wide percent of average 71* 74 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 2.3 4.6 50 2.1 3.2 66 BLACK BEAR 7950 3.8 4.9 78 4.4 6.1 72 CANYON 7940 1.0 1.6 62 1.4 2.8 50 FISHER CREEK 9100 2.7 4.8 56 2.9 5.5 53 MADISON PLATEAU 7750 -M 2.9 * 2.8 4.3 65 NORTHEAST ENTRANCE 7350 .5 .9 56* 1.6 2.4 67 PARKER PEAK 9400 2.8 5.2 54 1.1 3.3 33 SYLVAN LAKE 8420 3.5 4.1 85 5.0 4.2 119 THUMB DIVIDE 7980 1.8 1.7 106* 2.2 3.5 63 TWO OCEAN PLATEAU 9360 4.0 5.1 78 3.6 5.2 69 WHISKEY CREEK 6800 1.3 1.7 76* 2.2 3.6 61 WHITE MILL 8700 1.7 3.4 50 2.2 4.6 48 WOLVERINE 7650 .5 1.1 45* 2.1 2.6 81 ----- ----- Basin wide percent of average 66 65 WIND RIVER BURROUGHS CREEK 8750 1.9 1.9 100 2.6 3.0 87 COLD SPRINGS 9630 2.6 1.7 153 4.0 2.7 148 DEER PARK 9700 4.8 -M * 6.0 -M * HOBBS PARK 10100 5.0 3.5 143 6.0 3.0 200 LITTLE WARM 9620 1.7 1.9 89 2.9 2.9 100 SOUTH PASS 9040 3.7 3.7 100 5.6 3.4 165 ST. LAWRENCE ALT 8620 2.6 1.2 217 5.0 2.5 200 TOGWOTEE PASS 9580 3.9 3.8 103 4.3 4.7 91 TOWNSEND CREEK 8700 3.3 1.7 194 5.7 2.7 211 ----- ----- Basin wide percent of average 127 145 BIGHORN BASIN BALD MTN. 9375 4.2 4.0 105 4.5 3.4 132 BEAR TRAP MEADOW 7900 1.7 1.3 131 4.6 2.2 209 BLACKWATER 9780 4.0 4.0 100 4.0 3.7 108 BONE SPRINGS DIV 9350 3.2 3.6 89 3.8 3.1 123 EVENING STAR 9200 1.6 5.9 27 2.8 4.5 62 GRAVE SPRINGS 8550 1.9 -M * 5.0 2.6 192 KIRWIN 9550 3.1 2.3 135 3.3 2.4 138 LOST CREEK 8080 .0 2.2 0 .0 2.8 0 MARQUETTE 8760 3.6 1.5 240 4.6 2.5 184 MIDDLE POWDER 7760 1.8 2.3 78 7.8 2.9 269 OWL CREEK 8975 2.5 .8 312 3.4 1.4 243 POWDER RIVER PASS 9480 1.7 2.1 81 3.7 2.7 137 SHELL CREEK 9580 3.7 3.4 109 3.5 2.8 125 SYLVAN LAKE 8420 3.5 4.1 85 5.0 4.2 119 SYLVAN ROAD 8120 1.2 2.4 50 1.8 3.4 53 TIMBER CREEK 7950 2.5 .6 417* 4.0 1.8 222 YOUNTS PEAK 8350 2.5 3.6 69 2.1 3.1 68 ----- ----- Basin wide percent of average 93 129 SHOSHONE RIVER BLACKWATER 9780 4.0 4.0 100 4.0 3.7 108 EVENING STAR 9200 1.6 5.9 27 2.8 4.5 62 KIRWIN 9550 3.1 2.3 135 3.3 2.4 138 MARQUETTE 8760 3.6 1.5 240 4.6 2.5 184 SYLVAN LAKE 8420 3.5 4.1 85 5.0 4.2 119 SYLVAN ROAD 8120 1.2 2.4 50 1.8 3.4 53 YOUNTS PEAK 8350 2.5 3.6 69 2.1 3.1 68 ----- ----- Basin wide percent of average 82 99 POWDER-TONGUE BEAR TRAP MEADOW 7900 1.7 1.3 131 4.6 2.2 209 BONE SPRINGS DIV 9350 3.2 3.6 89 3.8 3.1 123 BURGESS JUNCTION 7880 1.8 2.5 72 4.1 2.7 152 CLOUD PEAK RESERVOIR 9860 2.8 2.1 133 5.2 3.0 173 DOME LAKE 8880 2.1 2.8 75 3.5 3.3 106 GRAVE SPRINGS 8550 1.9 -M * 5.0 2.6 192 HANSEN SAWMILL 8760 1.4 1.3 108 3.2 2.2 145 LOST CREEK 8080 .0 2.2 0 .0 2.8 0 MIDDLE POWDER 7760 1.8 2.3 78 7.8 2.9 269 POWDER RIVER PASS 9480 1.7 2.1 81 3.7 2.7 137 SUCKER CREEK 8880 2.9 1.8 161 4.7 3.0 157 TIE CREEK 6870 1.3 -M * 3.2 2.6 123 ----- ----- Basin wide percent of average 88 147 BELLE FOURCHE BLIND PARK 6890 1.0 2.3 43 7.2 2.4 300 NORTH RAPID CREEK 6130 1.1 -M * 7.5 -M * WARREN PEAK 6520 1.0 2.3 43 7.4 1.9 389 ----- ----- Basin wide percent of average 43 340 UPPER N. PLATTE RIVER COLUMBINE 9400 2.4 2.9 83 5.3 4.0 132 DIVIDE PEAK 8800 3.1 3.6 86 8.3 4.5 184 ELK RIVER 8700 1.5 1.4 107* 7.2 3.4 212 JOE WRIGHT 10120 4.4 4.7 94 8.5 5.2 163 NORTH FRENCH CREEK 10100 7.1 4.3 165 9.6 3.8 253 OLD BATTLE 10000 5.5 5.7 96 8.9 5.4 165 SOUTH BRUSH CREEK 8400 3.4 1.3 262* 8.3 3.5 237 TOWER 10500 9.0 9.3 97 10.1 6.4 158 WEBBER SPRINGS 9200 2.8 4.0 70 6.5 5.2 125 WILLOW CREEK PASS 9540 3.4 1.9 179 4.4 2.6 169 ----- ----- Basin wide percent of average 109 175 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 2.9 4.0 72 5.3 3.6 147 CASPER MTN. 7900 2.6 2.6 100 8.5 3.6 236 DEADMAN HILL 10220 4.8 2.6 185 5.5 3.5 157 DEER PARK 9700 4.8 -M * 6.0 -M * LAPRELE CREEK 8320 .3 1.7 18 5.9 2.2 268 RENO HILL 8400 4.4 2.6 169 8.4 4.1 205 ROACH 9700 2.8 2.8 100 5.1 4.1 124 SAND LAKE 10080 7.8 5.7 137 9.5 4.0 238 SOUTH PASS 9040 3.7 3.7 100 5.6 3.4 165 WINDY PEAK 7840 .3 1.1 27 5.9 1.8 328 ----- ----- Basin wide percent of average 110 197 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 1.2 1.3 92 5.7 2.9 197 DIVIDE PEAK 8800 3.1 3.6 86 8.3 4.5 184 OLD BATTLE 10000 5.5 5.7 96 8.9 5.4 165 SANDSTONE RS 8150 .9 1.7 53 6.3 3.1 203 WHISKEY PARK 8950 3.3 4.2 79 8.2 3.6 228 ----- ----- Basin wide percent of average 85 192 UPPER GREEN RIVER BIG SANDY OPENING 9100 3.0 1.7 176 3.4 2.8 121 BLIND BULL SUM 8650 1.8 4.4 41 3.1 3.7 84 EAST RIM DIVIDE 7930 1.0 1.3 77* 2.0 2.7 74 ELKHART PARK G.S. 9400 2.5 1.8 139 3.3 2.8 118 GROS VENTRE SUMMIT 8775 2.2 2.2 100 3.2 2.8 114 KENDALL R.S. 7740 1.3 1.0 130* 2.1 2.7 78 LOOMIS PARK 8240 1.1 1.6 69* 2.5 3.3 76 NEW FORK LAKE 8340 1.3 .8 162* 2.0 2.5 80 SNIDER BASIN 8250 .6 1.1 55* 1.9 2.7 70 SPRING CREEK DIVIDE 9000 1.8 3.4 53 3.4 4.3 79 TRIPLE PEAK 8500 1.5 2.8 54 3.0 5.3 57 ----- ----- Basin wide percent of average 82 84 LOWER GREEN RIVER HAMS FORK 7840 .6 .6 100* 2.4 2.3 104 HEWINTA 9500 .1 1.1 9* 3.7 3.2 116 HICKERSON PARK 9150 2.3 1.1 209 3.8 2.7 141 HOLE-IN-ROCK 9150 .6 .7 86 4.2 2.7 156 INDIAN CREEK 9425 2.5 3.5 71 3.2 4.3 74 KELLEY R.S. 8180 1.1 1.5 73* 2.6 3.3 79 STEEL CREEK PARK 10100 2.6 3.0 87 4.6 3.3 139 ----- ----- Basin wide percent of average 85 112 UPPER BEAR RIVER BUG LAKE 7950 .4 2.2 18 2.9 4.6 63 HAYDEN FORK 9400 1.6 1.9 84 4.1 3.7 111 KELLEY R.S. 8180 1.1 1.5 73* 2.6 3.3 79 LILY LAKE 9050 2.3 1.8 128 4.9 3.6 136 MONTE CRISTO 8960 1.9 2.8 68* 4.5 5.3 85 SALT RIVER SUMMIT 7600 .8 .9 89* 2.7 3.0 90 TRIAL LAKE 9960 2.6 3.5 74 4.2 4.6 91 ----- ----- Basin wide percent of average 73 92 ----------------------------------------------------------------------------- -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.