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: JANUARY 24 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 15.5 11.4 136 16.2 15.0 108 COTTONWOOD CREEK 7600 13.8 12.8 108 16.9 15.9 106 GRANITE CREEK 6770 12.3 11.1 111 14.4 15.8 91 GRASSY LAKE 7265 26.2 20.9 125 26.4 24.3 109 GROS VENTRE SUMMIT 8775 9.3 9.7 96 9.4 10.7 88 LEWIS LAKE DIVIDE 7860 25.1 20.6 122 25.9 24.7 105 PHILLIPS BENCH 8200 19.2 17.5 110 19.2 19.5 98 SALT RIVER SUMMIT 7600 8.6 8.1 106 10.9 11.3 96 SNAKE RIVER STATION 6920 14.4 11.3 127 17.5 17.1 102 SPRING CREEK DIVIDE 9000 16.6 16.6 100 16.8 17.8 94 THUMB DIVIDE 7980 14.7 10.4 141 14.7 14.1 104 TOGWOTEE PASS 9580 -M 15.5 * 19.2 18.5 104 TWO OCEAN PLATEAU 9360 23.7 16.9 140 20.6 20.7 100 WILLOW CREEK 8450 19.1 19.0 101 23.9 20.9 114 ----- ----- Basin wide percent of average 117 102 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 18.5 14.9 124 16.7 11.2 149 BLACK BEAR 7950 30.5 22.3 137 -M 24.1 * CANYON 7940 11.9 7.6 157 12.8 9.1 141 FISHER CREEK 9100 26.8 22.1 121 23.2 22.4 104 MADISON PLATEAU 7750 -M 14.6 * 18.0 15.9 113 NORTHEAST ENTRANCE 7350 8.4 5.8 145 10.3 7.7 134 PARKER PEAK 9400 16.1 13.4 120 -M 9.8 * SYLVAN LAKE 8420 18.1 13.9 130 20.5 12.3 167 THUMB DIVIDE 7980 14.7 10.4 141 14.7 14.1 104 TWO OCEAN PLATEAU 9360 23.7 16.9 140 20.6 20.7 100 WHISKEY CREEK 6800 13.1 10.2 128 15.4 13.2 117 WHITE MILL 8700 17.9 15.5 115 16.4 17.6 93 WOLVERINE 7650 11.5 7.2 160 9.7 8.2 118 ----- ----- Basin wide percent of average 132 117 WIND RIVER BURROUGHS CREEK 8750 11.7 9.6 122 12.7 10.5 121 COLD SPRINGS 9630 6.4 5.5 116 8.0 6.5 123 DEER PARK 9700 9.8 -M * 13.4 -M * HOBBS PARK 10100 10.3 9.5 108 10.1 8.6 117 LITTLE WARM 9620 8.5 6.7 127 9.6 8.3 116 SOUTH PASS 9040 10.8 10.6 102 12.2 10.1 121 ST. LAWRENCE ALT 8620 4.5 4.4 102 7.2 6.0 120 TOGWOTEE PASS 9580 -M 15.5 * 19.2 18.5 104 TOWNSEND CREEK 8700 5.6 5.8 97 8.1 7.3 111 ----- ----- Basin wide percent of average 111 115 BIGHORN BASIN BALD MTN. 9375 13.9 13.0 107 13.0 10.9 119 BEAR TRAP MEADOW 7900 4.6 4.5 102 7.1 5.1 139 BLACKWATER 9780 20.5 13.0 158 18.0 11.3 159 BONE SPRINGS DIV 9350 10.8 9.9 109 10.5 8.8 119 EVENING STAR 9200 23.4 16.7 140 24.4 14.1 173 GRAVE SPRINGS 8550 4.7 5.7 82 7.6 6.1 125 KIRWIN 9550 8.2 6.3 130 9.3 6.4 145 MARQUETTE 8760 5.9 4.8 123 6.6 5.5 120 MIDDLE POWDER 7760 4.6 7.3 63 10.7 7.3 147 OWL CREEK 8975 3.8 2.6 146 4.5 3.5 129 POWDER RIVER PASS 9480 8.3 6.5 128 10.3 7.2 143 SHELL CREEK 9580 12.0 9.6 125 10.8 8.3 130 SYLVAN LAKE 8420 18.1 13.9 130 20.5 12.3 167 SYLVAN ROAD 8120 12.3 7.8 158 14.2 10.3 138 TIMBER CREEK 7950 3.7 3.3 112 5.5 4.0 138 YOUNTS PEAK 8350 14.7 11.4 129 12.8 10.4 123 ----- ----- Basin wide percent of average 124 141 SHOSHONE RIVER BLACKWATER 9780 20.5 13.0 158 18.0 11.3 159 EVENING STAR 9200 23.4 16.7 140 24.4 14.1 173 KIRWIN 9550 8.2 6.3 130 9.3 6.4 145 MARQUETTE 8760 5.9 4.8 123 6.6 5.5 120 SYLVAN LAKE 8420 18.1 13.9 130 20.5 12.3 167 SYLVAN ROAD 8120 12.3 7.8 158 14.2 10.3 138 YOUNTS PEAK 8350 14.7 11.4 129 12.8 10.4 123 ----- ----- Basin wide percent of average 140 150 POWDER-TONGUE BEAR TRAP MEADOW 7900 4.6 4.5 102 7.1 5.1 139 BIG GOOSE 7990 3.6 -M * 6.5 -M * BONE SPRINGS DIV 9350 10.8 9.9 109 10.5 8.8 119 BURGESS JUNCTION 7880 5.1 7.1 72 7.2 6.7 107 CLOUD PEAK RESERVOIR 9860 9.4 7.4 127 7.3 7.6 96 DOME LAKE 8880 5.5 8.3 66 7.4 8.2 90 GRAVE SPRINGS 8550 4.7 5.7 82 7.6 6.1 125 HANSEN SAWMILL 8760 3.5 4.3 81 5.7 4.7 121 MIDDLE POWDER 7760 4.6 7.3 63 10.7 7.3 147 POWDER RIVER PASS 9480 8.3 6.5 128 10.3 7.2 143 SUCKER CREEK 8880 6.6 6.9 96 8.4 8.1 104 TIE CREEK 6870 2.1 -M * 5.6 6.4 88 ----- ----- Basin wide percent of average 93 115 BELLE FOURCHE BLIND PARK 6890 5.1 6.7 76 12.1 5.8 209 NORTH RAPID CREEK 6130 3.9 -M * 10.4 -M * WARREN PEAK 6520 5.9 6.7 88 10.7 4.9 218 ----- ----- Basin wide percent of average 82 213 UPPER N. PLATTE RIVER COLUMBINE 9400 12.9 14.4 90 14.7 15.0 98 DIVIDE PEAK 8800 11.4 12.4 92 16.9 15.0 113 ELK RIVER 8700 -M 11.4 * 14.9 11.5 130 JOE WRIGHT 10120 12.9 13.1 98 18.1 15.2 119 NORTH FRENCH CREEK 10100 18.3 14.9 123 19.2 14.0 137 OLD BATTLE 10000 16.4 19.0 86 22.5 18.1 124 SOUTH BRUSH CREEK 8400 5.9 6.5 91 13.7 10.5 130 TOWER 10500 25.9 27.5 94 25.4 22.2 114 WEBBER SPRINGS 9200 11.8 16.1 73 16.7 15.7 106 WILLOW CREEK PASS 9540 6.7 6.9 97 8.5 7.4 115 ----- ----- Basin wide percent of average 93 118 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 12.6 15.1 83 15.0 11.2 134 CASPER MTN. 7900 5.4 8.8 61 11.0 8.2 134 DEADMAN HILL 10220 12.2 10.3 118 12.4 9.6 129 DEER PARK 9700 9.8 -M * 13.4 -M * LAPRELE CREEK 8320 2.2 6.1 36 8.8 7.0 126 RENO HILL 8400 7.5 7.8 96 11.7 11.0 106 ROACH 9700 11.2 10.2 110 13.9 13.2 105 SAND LAKE 10080 20.2 19.7 103 19.2 12.1 159 SOUTH PASS 9040 10.8 10.6 102 12.2 10.1 121 WINDY PEAK 7840 3.0 4.1 73 8.5 5.4 157 ----- ----- Basin wide percent of average 92 128 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 6.4 6.7 96 11.2 10.0 112 DIVIDE PEAK 8800 11.4 12.4 92 16.9 15.0 113 OLD BATTLE 10000 16.4 19.0 86 22.5 18.1 124 SANDSTONE RS 8150 6.8 8.5 80 13.3 12.2 109 WHISKEY PARK 8950 15.2 17.0 89 19.4 17.9 108 ----- ----- Basin wide percent of average 88 114 UPPER GREEN RIVER BIG SANDY OPENING 9100 10.2 8.8 116 9.6 10.9 88 BLIND BULL SUM 8650 17.7 17.5 101 14.8 15.3 97 EAST RIM DIVIDE 7930 8.4 8.4 100 8.9 10.2 87 ELKHART PARK G.S. 9400 8.5 8.2 104 9.1 10.7 85 GROS VENTRE SUMMIT 8775 9.3 9.7 96 9.4 10.7 88 KENDALL R.S. 7740 9.2 9.1 101 9.8 10.4 94 LOOMIS PARK 8240 10.0 10.5 95 12.8 12.7 101 NEW FORK LAKE 8340 7.5 7.1 106 7.7 9.7 79 SNIDER BASIN 8250 8.8 9.0 98 9.4 10.2 92 SPRING CREEK DIVIDE 9000 16.6 16.6 100 16.8 17.8 94 TRIPLE PEAK 8500 16.0 15.8 101 17.8 20.9 85 ----- ----- Basin wide percent of average 101 90 LOWER GREEN RIVER HAMS FORK 7840 7.1 7.3 97 6.8 9.0 76 HEWINTA 9500 5.4 5.7 95 8.2 7.9 104 HICKERSON PARK 9150 3.2 3.3 97 5.9 5.7 104 HOLE-IN-ROCK 9150 3.9 3.0 130 6.6 5.7 116 INDIAN CREEK 9425 15.6 16.4 95 13.5 16.8 80 KELLEY R.S. 8180 9.5 9.7 98 11.2 12.6 89 STEEL CREEK PARK 10100 7.8 9.2 85 9.8 8.1 121 ----- ----- Basin wide percent of average 96 94 UPPER BEAR RIVER BUG LAKE 7950 9.6 12.0 80 11.0 11.9 92 HAYDEN FORK 9400 7.9 9.5 83 11.4 11.1 103 KELLEY R.S. 8180 9.5 9.7 98 11.2 12.6 89 LILY LAKE 9050 7.6 7.7 99 10.6 8.9 119 MONTE CRISTO 8960 14.0 15.9 88 15.7 15.4 102 SALT RIVER SUMMIT 7600 8.6 8.1 106 10.9 11.3 96 TRIAL LAKE 9960 9.9 14.8 67 10.9 14.1 77 ----- ----- Basin wide percent of average 86 96 ----------------------------------------------------------------------------- -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.