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 SUNDAY: NOVEMBER 22 , 1998 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 2.4 2.9 83 3.6 5.2 69 COTTONWOOD CREEK 7600 2.6 3.2 81 5.7 5.5 104 GRANITE CREEK 6770 1.6 2.6 62 2.7 5.5 49 GRASSY LAKE 7265 4.8 5.0 96 6.6 8.3 80 GROS VENTRE SUMMIT 8775 2.9 2.9 100 3.5 3.8 92 LEWIS LAKE DIVIDE 7860 5.5 5.2 106 6.6 8.4 79 PHILLIPS BENCH 8200 3.5 4.1 85 4.1 6.5 63 SALT RIVER SUMMIT 7600 1.1 1.5 73 3.3 3.9 85 SNAKE RIVER STATION 6920 2.5 2.8 89 4.3 5.8 74 SPRING CREEK DIVIDE 9000 2.7 4.7 57 4.2 5.9 71 THUMB DIVIDE 7980 3.5 2.6 135 3.9 4.8 81 TOGWOTEE PASS 9580 5.3 4.9 108 5.5 6.3 87 TWO OCEAN PLATEAU 9360 6.3 6.5 97 5.7 7.1 80 WILLOW CREEK 8450 3.7 4.6 80 8.2 7.1 115 ----- ----- Basin wide percent of average 90 81 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 4.3 5.8 74 3.6 4.1 88 BLACK BEAR 7950 7.9 6.6 120 8.0 8.0 100 CANYON 7940 2.1 2.1 100 2.7 3.6 75 FISHER CREEK 9100 6.2 6.8 91 6.2 7.3 85 MADISON PLATEAU 7750 -M 4.1 * 5.0 5.6 89 NORTHEAST ENTRANCE 7350 1.2 1.4 86 2.5 3.0 83 PARKER PEAK 9400 4.1 6.2 66 -M 4.2 * SYLVAN LAKE 8420 5.2 5.4 96 6.8 5.3 128 THUMB DIVIDE 7980 3.5 2.6 135 3.9 4.8 81 TWO OCEAN PLATEAU 9360 6.3 6.5 97 5.7 7.1 80 WHISKEY CREEK 6800 2.5 2.7 93 3.6 4.6 78 WHITE MILL 8700 3.8 4.8 79 4.2 6.1 69 WOLVERINE 7650 1.4 1.7 82 2.7 3.4 79 ----- ----- Basin wide percent of average 92 87 WIND RIVER BURROUGHS CREEK 8750 2.7 2.8 96 3.3 4.1 80 COLD SPRINGS 9630 2.9 2.2 132 4.2 3.4 124 DEER PARK 9700 4.5 -M * 6.0 -M * HOBBS PARK 10100 5.2 4.3 121 5.9 3.7 159 LITTLE WARM 9620 2.6 2.6 100 3.5 3.7 95 SOUTH PASS 9040 3.8 4.5 84 5.7 4.4 130 ST. LAWRENCE ALT 8620 2.6 1.6 162 5.0 3.2 156 TOGWOTEE PASS 9580 5.3 4.9 108 5.5 6.3 87 TOWNSEND CREEK 8700 3.4 2.2 155 5.9 3.3 179 ----- ----- Basin wide percent of average 114 121 BIGHORN BASIN BALD MTN. 9375 4.7 5.0 94 5.1 4.3 119 BEAR TRAP MEADOW 7900 1.7 1.7 100 4.9 2.7 181 BLACKWATER 9780 6.5 4.9 133 5.7 4.6 124 BONE SPRINGS DIV 9350 3.8 4.3 88 4.5 3.7 122 EVENING STAR 9200 4.2 7.3 58 5.6 5.6 100 GRAVE SPRINGS 8550 2.1 -M * 5.2 3.1 168 KIRWIN 9550 3.7 2.8 132 4.0 3.1 129 MARQUETTE 8760 3.9 2.0 195 4.9 3.0 163 MIDDLE POWDER 7760 1.9 3.0 63 8.0 3.5 229 OWL CREEK 8975 2.6 .9 289 3.5 1.7 206 POWDER RIVER PASS 9480 1.9 2.6 73 3.9 3.2 122 SHELL CREEK 9580 4.2 4.1 102 3.8 3.4 112 SYLVAN LAKE 8420 5.2 5.4 96 6.8 5.3 128 SYLVAN ROAD 8120 2.5 2.9 86 3.2 4.3 74 TIMBER CREEK 7950 2.6 .9 289 4.0 2.1 190 YOUNTS PEAK 8350 3.9 4.5 87 3.6 4.1 88 ----- ----- Basin wide percent of average 102 133 SHOSHONE RIVER BLACKWATER 9780 6.5 4.9 133 5.7 4.6 124 EVENING STAR 9200 4.2 7.3 58 5.6 5.6 100 KIRWIN 9550 3.7 2.8 132 4.0 3.1 129 MARQUETTE 8760 3.9 2.0 195 4.9 3.0 163 SYLVAN LAKE 8420 5.2 5.4 96 6.8 5.3 128 SYLVAN ROAD 8120 2.5 2.9 86 3.2 4.3 74 YOUNTS PEAK 8350 3.9 4.5 87 3.6 4.1 88 ----- ----- Basin wide percent of average 100 113 POWDER-TONGUE BEAR TRAP MEADOW 7900 1.7 1.7 100 4.9 2.7 181 BIG GOOSE 7990 1.6 -M * 4.6 -M * BONE SPRINGS DIV 9350 3.8 4.3 88 4.5 3.7 122 BURGESS JUNCTION 7880 1.9 3.0 63 4.2 3.3 127 CLOUD PEAK RESERVOIR 9860 3.2 2.7 119 5.2 3.6 144 DOME LAKE 8880 2.1 3.4 62 3.6 4.0 90 GRAVE SPRINGS 8550 2.1 -M * 5.2 3.1 168 HANSEN SAWMILL 8760 1.5 1.7 88 3.2 2.6 123 MIDDLE POWDER 7760 1.9 3.0 63 8.0 3.5 229 POWDER RIVER PASS 9480 1.9 2.6 73 3.9 3.2 122 SUCKER CREEK 8880 3.0 2.3 130 5.0 3.6 139 TIE CREEK 6870 .8 -M * 3.3 3.1 106 ----- ----- Basin wide percent of average 85 140 BELLE FOURCHE BLIND PARK 6890 1.1 2.8 39 7.5 2.8 268 NORTH RAPID CREEK 6130 1.1 -M * 7.7 -M * WARREN PEAK 6520 1.3 2.8 46 7.6 2.3 330 ----- ----- Basin wide percent of average 43 296 UPPER N. PLATTE RIVER COLUMBINE 9400 3.2 3.9 82 6.3 5.1 124 DIVIDE PEAK 8800 4.0 4.6 87 9.7 5.6 173 ELK RIVER 8700 1.9 2.5 76 7.9 4.3 184 JOE WRIGHT 10120 4.4 5.7 77 9.0 6.5 138 NORTH FRENCH CREEK 10100 8.2 5.5 149 10.5 5.0 210 OLD BATTLE 10000 6.9 7.2 96 10.6 7.1 149 SOUTH BRUSH CREEK 8400 3.6 1.9 189 8.6 4.3 200 TOWER 10500 10.7 11.5 93 11.3 8.1 140 WEBBER SPRINGS 9200 3.7 5.5 67 7.7 6.9 112 WILLOW CREEK PASS 9540 3.8 2.6 146 5.2 3.3 158 ----- ----- Basin wide percent of average 99 154 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 4.2 5.5 76 6.3 4.4 143 CASPER MTN. 7900 2.9 3.6 81 8.6 4.4 195 DEADMAN HILL 10220 5.4 3.5 154 6.2 4.3 144 DEER PARK 9700 4.5 -M * 6.0 -M * LAPRELE CREEK 8320 .5 2.2 23 6.2 2.8 221 RENO HILL 8400 4.5 3.3 136 8.7 5.4 161 ROACH 9700 3.3 3.7 89 5.7 5.2 110 SAND LAKE 10080 9.3 7.3 127 10.7 5.0 214 SOUTH PASS 9040 3.8 4.5 84 5.7 4.4 130 WINDY PEAK 7840 .9 1.7 53 6.5 2.3 283 ----- ----- Basin wide percent of average 99 169 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 1.3 1.9 68 6.3 3.8 166 DIVIDE PEAK 8800 4.0 4.6 87 9.7 5.6 173 OLD BATTLE 10000 6.9 7.2 96 10.6 7.1 149 SANDSTONE RS 8150 1.4 2.4 58 7.2 4.2 171 WHISKEY PARK 8950 4.4 5.6 79 9.6 4.9 196 ----- ----- Basin wide percent of average 83 170 UPPER GREEN RIVER BIG SANDY OPENING 9100 3.3 2.4 138 3.6 3.8 95 BLIND BULL SUM 8650 3.2 5.9 54 4.1 5.0 82 EAST RIM DIVIDE 7930 1.4 1.4 100* 2.3 3.5 66 ELKHART PARK G.S. 9400 2.8 2.4 117 3.5 3.8 92 GROS VENTRE SUMMIT 8775 2.9 2.9 100 3.5 3.8 92 KENDALL R.S. 7740 1.7 1.8 94 2.5 3.6 69 LOOMIS PARK 8240 1.6 2.5 64 2.9 4.4 66 NEW FORK LAKE 8340 1.5 1.4 107 2.5 3.4 74 SNIDER BASIN 8250 1.1 2.0 55 2.2 3.5 63 SPRING CREEK DIVIDE 9000 2.7 4.7 57 4.2 5.9 71 TRIPLE PEAK 8500 2.9 4.1 71 4.4 7.1 62 ----- ----- Basin wide percent of average 80 75 LOWER GREEN RIVER HAMS FORK 7840 .9 1.1 82* 2.6 3.1 84 HEWINTA 9500 1.0 1.7 59 4.0 3.8 105 HICKERSON PARK 9150 1.5 1.4 107 4.1 3.2 128 HOLE-IN-ROCK 9150 1.0 1.1 91 4.6 3.2 144 INDIAN CREEK 9425 3.5 4.8 73 4.1 5.8 71 KELLEY R.S. 8180 1.8 2.4 75 3.3 4.4 75 STEEL CREEK PARK 10100 3.2 4.0 80 5.3 3.9 136 ----- ----- Basin wide percent of average 78 102 UPPER BEAR RIVER BUG LAKE 7950 1.2 3.5 34 3.6 5.5 65 HAYDEN FORK 9400 2.2 2.8 79 5.1 4.6 111 KELLEY R.S. 8180 1.8 2.4 75 3.3 4.4 75 LILY LAKE 9050 2.7 2.6 104 5.4 4.3 126 MONTE CRISTO 8960 3.2 4.4 73 5.7 6.6 86 SALT RIVER SUMMIT 7600 1.1 1.5 73 3.3 3.9 85 TRIAL LAKE 9960 3.1 4.8 65 4.6 5.9 78 ----- ----- Basin wide percent of average 70 88 ----------------------------------------------------------------------------- -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.