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 THURSDAY: JANUARY 28 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 15.4 11.9 129 16.3 15.6 104 COTTONWOOD CREEK 7600 13.9 13.4 104 16.9 16.6 102 GRANITE CREEK 6770 12.2 11.7 104 14.3 16.5 87 GRASSY LAKE 7265 27.0 21.9 123 27.3 25.3 108 GROS VENTRE SUMMIT 8775 9.2 10.2 90 9.5 11.1 86 LEWIS LAKE DIVIDE 7860 25.3 21.7 117 25.9 25.8 100 PHILLIPS BENCH 8200 19.4 18.4 105 19.4 20.4 95 SALT RIVER SUMMIT 7600 8.6 8.5 101 10.8 11.8 92 SNAKE RIVER STATION 6920 14.6 11.8 124 17.9 17.9 100 SPRING CREEK DIVIDE 9000 16.5 17.4 95 17.0 18.6 91 THUMB DIVIDE 7980 -M 10.9 * -M 14.7 * TOGWOTEE PASS 9580 -M 16.2 * 19.5 19.3 101 TWO OCEAN PLATEAU 9360 23.8 17.6 135 20.8 21.6 96 WILLOW CREEK 8450 19.4 20.0 97 24.3 21.9 111 ----- ----- Basin wide percent of average 111 99 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 18.6 15.5 120 16.7 11.6 144 BLACK BEAR 7950 31.2 23.4 133 -M 25.3 * CANYON 7940 12.1 7.9 153 12.9 9.5 136 FISHER CREEK 9100 27.2 23.2 117 23.5 23.5 100 MADISON PLATEAU 7750 -M 15.4 * 19.6 16.6 118 NORTHEAST ENTRANCE 7350 8.5 6.1 139 10.4 8.0 130 PARKER PEAK 9400 16.3 13.9 117 -M 10.1 * SYLVAN LAKE 8420 18.6 14.4 129 20.9 12.8 163 THUMB DIVIDE 7980 -M 10.9 * -M 14.7 * TWO OCEAN PLATEAU 9360 23.8 17.6 135 20.8 21.6 96 WHISKEY CREEK 6800 13.4 10.7 125 15.9 13.8 115 WHITE MILL 8700 18.3 16.2 113 16.6 18.5 90 WOLVERINE 7650 11.6 7.6 153 9.8 8.5 115 ----- ----- Basin wide percent of average 128 116 WIND RIVER BURROUGHS CREEK 8750 11.7 10.0 117 12.7 10.9 117 COLD SPRINGS 9630 6.4 5.6 114 8.0 6.7 119 DEER PARK 9700 10.2 -M * 13.8 -M * HOBBS PARK 10100 10.2 9.7 105 10.3 8.9 116 LITTLE WARM 9620 8.5 6.9 123 9.5 8.6 110 SOUTH PASS 9040 11.1 10.9 102 12.5 10.4 120 ST. LAWRENCE ALT 8620 4.4 4.6 96 7.3 6.1 120 TOGWOTEE PASS 9580 -M 16.2 * 19.5 19.3 101 TOWNSEND CREEK 8700 5.2 6.0 87 7.7 7.5 103 ----- ----- Basin wide percent of average 107 112 BIGHORN BASIN BALD MTN. 9375 14.0 13.4 104 12.8 11.3 113 BEAR TRAP MEADOW 7900 4.6 4.7 98 7.0 5.3 132 BLACKWATER 9780 20.6 13.5 153 18.1 11.8 153 BONE SPRINGS DIV 9350 -M 10.3 * 10.8 9.1 119 EVENING STAR 9200 23.7 17.2 138 24.5 14.7 167 GRAVE SPRINGS 8550 4.7 5.9 80 7.7 6.2 124 KIRWIN 9550 8.1 6.4 127 9.4 6.6 142 MARQUETTE 8760 5.9 5.0 118 6.6 5.7 116 MIDDLE POWDER 7760 4.8 7.6 63 10.8 7.6 142 OWL CREEK 8975 3.9 2.7 144 4.5 3.7 122 POWDER RIVER PASS 9480 8.2 6.8 121 10.4 7.5 139 SHELL CREEK 9580 12.0 9.9 121 10.9 8.6 127 SYLVAN LAKE 8420 18.6 14.4 129 20.9 12.8 163 SYLVAN ROAD 8120 12.4 8.1 153 14.4 10.7 135 TIMBER CREEK 7950 3.7 3.5 106 5.6 4.1 137 YOUNTS PEAK 8350 14.7 11.8 125 12.9 10.9 118 ----- ----- Basin wide percent of average 122 137 SHOSHONE RIVER BLACKWATER 9780 20.6 13.5 153 18.1 11.8 153 EVENING STAR 9200 23.7 17.2 138 24.5 14.7 167 KIRWIN 9550 8.1 6.4 127 9.4 6.6 142 MARQUETTE 8760 5.9 5.0 118 6.6 5.7 116 SYLVAN LAKE 8420 18.6 14.4 129 20.9 12.8 163 SYLVAN ROAD 8120 12.4 8.1 153 14.4 10.7 135 YOUNTS PEAK 8350 14.7 11.8 125 12.9 10.9 118 ----- ----- Basin wide percent of average 136 146 POWDER-TONGUE BEAR TRAP MEADOW 7900 4.6 4.7 98 7.0 5.3 132 BIG GOOSE 7990 3.6 -M * 6.6 -M * BONE SPRINGS DIV 9350 -M 10.3 * 10.8 9.1 119 BURGESS JUNCTION 7880 5.1 7.3 70 7.2 6.9 104 CLOUD PEAK RESERVOIR 9860 9.4 7.7 122 7.8 7.8 100 DOME LAKE 8880 5.4 8.7 62 7.3 8.5 86 GRAVE SPRINGS 8550 4.7 5.9 80 7.7 6.2 124 HANSEN SAWMILL 8760 -M 4.4 * 5.8 4.9 118 MIDDLE POWDER 7760 4.8 7.6 63 10.8 7.6 142 POWDER RIVER PASS 9480 8.2 6.8 121 10.4 7.5 139 SUCKER CREEK 8880 6.6 7.2 92 8.6 8.3 104 TIE CREEK 6870 2.2 -M * 5.9 6.6 89 ----- ----- Basin wide percent of average 87 113 BELLE FOURCHE BLIND PARK 6890 5.2 7.0 74 12.2 5.9 207 NORTH RAPID CREEK 6130 3.9 -M * 10.4 -M * WARREN PEAK 6520 5.9 7.0 84 10.8 5.0 216 ----- ----- Basin wide percent of average 79 211 UPPER N. PLATTE RIVER COLUMBINE 9400 13.6 15.1 90 14.9 15.7 95 DIVIDE PEAK 8800 12.8 12.9 99 18.1 15.6 116 ELK RIVER 8700 -M 12.0 * 16.0 12.0 133 JOE WRIGHT 10120 14.3 13.6 105 19.4 15.9 122 NORTH FRENCH CREEK 10100 19.7 15.4 128 20.1 14.6 138 OLD BATTLE 10000 18.3 19.8 92 24.3 18.7 130 SOUTH BRUSH CREEK 8400 5.8 6.8 85 14.5 10.6 137 TOWER 10500 27.5 28.7 96 26.5 23.1 115 WEBBER SPRINGS 9200 12.8 16.8 76 17.7 16.2 109 WILLOW CREEK PASS 9540 7.7 7.1 108 8.8 7.6 116 ----- ----- Basin wide percent of average 97 120 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 13.4 15.5 86 15.7 11.6 135 CASPER MTN. 7900 6.7 9.1 74 12.2 8.4 145 DEADMAN HILL 10220 -M 10.7 * 13.3 9.9 134 DEER PARK 9700 10.2 -M * 13.8 -M * LAPRELE CREEK 8320 3.1 6.4 48 9.8 7.3 134 RENO HILL 8400 8.8 8.1 109 13.1 11.2 117 ROACH 9700 12.1 10.6 114 14.8 13.7 108 SAND LAKE 10080 21.7 20.4 106 20.5 12.5 164 SOUTH PASS 9040 11.1 10.9 102 12.5 10.4 120 WINDY PEAK 7840 3.6 4.3 84 9.1 5.7 160 ----- ----- Basin wide percent of average 94 133 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 7.4 7.0 106 12.1 10.5 115 DIVIDE PEAK 8800 12.8 12.9 99 18.1 15.6 116 OLD BATTLE 10000 18.3 19.8 92 24.3 18.7 130 SANDSTONE RS 8150 8.0 8.9 90 14.5 12.7 114 WHISKEY PARK 8950 16.7 17.7 94 20.6 18.9 109 ----- ----- Basin wide percent of average 95 117 UPPER GREEN RIVER BIG SANDY OPENING 9100 10.4 9.2 113 9.7 11.4 85 BLIND BULL SUM 8650 17.7 18.2 97 14.7 16.0 92 EAST RIM DIVIDE 7930 8.4 8.9 94 8.9 10.6 84 ELKHART PARK G.S. 9400 8.5 8.5 100 9.2 11.2 82 GROS VENTRE SUMMIT 8775 9.2 10.2 90 9.5 11.1 86 KENDALL R.S. 7740 9.1 9.5 96 9.6 10.8 89 LOOMIS PARK 8240 9.9 11.1 89 12.7 13.2 96 NEW FORK LAKE 8340 7.5 7.5 100 7.6 10.2 75 SNIDER BASIN 8250 8.8 9.4 94 9.3 10.6 88 SPRING CREEK DIVIDE 9000 16.5 17.4 95 17.0 18.6 91 TRIPLE PEAK 8500 16.0 16.6 96 17.8 21.8 82 ----- ----- Basin wide percent of average 96 87 LOWER GREEN RIVER HAMS FORK 7840 7.2 7.7 94 7.0 9.4 74 HEWINTA 9500 5.8 5.9 98 9.0 8.1 111 HICKERSON PARK 9150 3.8 3.4 112 6.5 5.8 112 HOLE-IN-ROCK 9150 4.1 3.1 132 6.9 5.8 119 INDIAN CREEK 9425 15.9 17.2 92 13.6 17.6 77 KELLEY R.S. 8180 9.6 10.2 94 11.2 13.1 85 STEEL CREEK PARK 10100 8.4 9.5 88 10.5 8.4 125 ----- ----- Basin wide percent of average 96 95 UPPER BEAR RIVER BUG LAKE 7950 10.2 12.4 82 11.2 12.4 90 HAYDEN FORK 9400 8.5 9.8 87 11.6 11.5 101 KELLEY R.S. 8180 9.6 10.2 94 11.2 13.1 85 LILY LAKE 9050 8.1 7.9 103 11.3 9.2 123 MONTE CRISTO 8960 14.4 16.6 87 16.0 16.0 100 SALT RIVER SUMMIT 7600 8.6 8.5 101 10.8 11.8 92 TRIAL LAKE 9960 10.7 15.3 70 11.9 14.7 81 ----- ----- Basin wide percent of average 87 95 ----------------------------------------------------------------------------- -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.