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: FEBRUARY 7 , 1999 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 16.7 13.2 127 16.9 17.1 99 COTTONWOOD CREEK 7600 15.5 15.0 103 18.5 18.4 101 GRANITE CREEK 6770 13.8 13.0 106 15.9 18.0 88 GRASSY LAKE 7265 29.1 25.9 112 29.2 27.7 105 GROS VENTRE SUMMIT 8775 10.2 11.1 92 10.1 12.2 83 LEWIS LAKE DIVIDE 7860 27.5 24.3 113 27.4 28.2 97 PHILLIPS BENCH 8200 21.6 20.5 105 21.0 22.3 94 SALT RIVER SUMMIT 7600 10.0 9.7 103 12.3 12.9 95 SNAKE RIVER STATION 6920 -M 13.3 * -M 19.5 * SPRING CREEK DIVIDE 9000 18.6 19.3 96 18.8 20.4 92 THUMB DIVIDE 7980 16.1 12.0 134 15.7 16.1 98 TOGWOTEE PASS 9580 -M 17.8 * 20.8 21.1 99 TWO OCEAN PLATEAU 9360 25.7 19.2 134 21.6 23.6 92 WILLOW CREEK 8450 21.6 22.2 97 25.8 24.0 108 ----- ----- Basin wide percent of average 110 97 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 19.7 16.9 117 17.5 12.7 138 BLACK BEAR 7950 34.5 26.1 132 -M 28.0 * CANYON 7940 12.9 8.8 147 13.7 10.4 132 FISHER CREEK 9100 29.1 25.5 114 24.1 25.9 93 MADISON PLATEAU 7750 -M 17.1 * 21.5 18.3 117 NORTHEAST ENTRANCE 7350 9.1 6.8 134 10.9 8.7 125 PARKER PEAK 9400 17.3 15.1 115 -M 11.1 * SYLVAN LAKE 8420 19.4 15.7 124 21.4 13.9 154 THUMB DIVIDE 7980 16.1 12.0 134 15.7 16.1 98 TWO OCEAN PLATEAU 9360 25.7 19.2 134 21.6 23.6 92 WHISKEY CREEK 6800 14.6 11.9 123 17.2 15.2 113 WHITE MILL 8700 19.2 17.9 107 17.3 20.3 85 WOLVERINE 7650 11.2 8.4 133 10.2 9.3 110 ----- ----- Basin wide percent of average 124 110 WIND RIVER BURROUGHS CREEK 8750 12.6 11.0 115 13.7 11.9 115 COLD SPRINGS 9630 6.8 6.1 111 8.5 7.2 118 DEER PARK 9700 10.5 -M * 14.6 -M * HOBBS PARK 10100 11.4 10.4 110 10.7 9.6 111 LITTLE WARM 9620 9.5 7.6 125 10.5 9.3 113 SOUTH PASS 9040 12.0 11.9 101 13.3 11.4 117 ST. LAWRENCE ALT 8620 4.9 5.1 96 7.5 6.7 112 TOGWOTEE PASS 9580 -M 17.8 * 20.8 21.1 99 TOWNSEND CREEK 8700 5.9 6.6 89 8.5 8.2 104 ----- ----- Basin wide percent of average 107 109 BIGHORN BASIN BALD MTN. 9375 14.2 14.5 98 13.4 12.2 110 BEAR TRAP MEADOW 7900 4.5 5.1 88 7.0 5.6 125 BLACKWATER 9780 21.9 14.9 147 18.8 12.8 147 BONE SPRINGS DIV 9350 11.3 11.2 101 11.5 9.9 116 EVENING STAR 9200 25.3 18.9 134 25.5 16.1 158 GRAVE SPRINGS 8550 4.9 6.4 77 7.9 6.6 120 KIRWIN 9550 8.6 6.9 125 9.9 7.2 138 MARQUETTE 8760 6.3 5.4 117 7.0 6.1 115 MIDDLE POWDER 7760 5.1 8.2 62 11.1 8.1 137 OWL CREEK 8975 4.3 3.0 143 5.1 4.0 128 POWDER RIVER PASS 9480 8.6 7.4 116 10.8 8.1 133 SHELL CREEK 9580 12.4 10.8 115 11.0 9.3 118 SYLVAN LAKE 8420 19.4 15.7 124 21.4 13.9 154 SYLVAN ROAD 8120 12.8 9.1 141 14.7 11.6 127 TIMBER CREEK 7950 3.8 3.9 97 5.5 4.4 125 YOUNTS PEAK 8350 15.7 12.8 123 13.7 11.9 115 ----- ----- Basin wide percent of average 116 131 SHOSHONE RIVER BLACKWATER 9780 21.9 14.9 147 18.8 12.8 147 EVENING STAR 9200 25.3 18.9 134 25.5 16.1 158 KIRWIN 9550 8.6 6.9 125 9.9 7.2 138 MARQUETTE 8760 6.3 5.4 117 7.0 6.1 115 SYLVAN LAKE 8420 19.4 15.7 124 21.4 13.9 154 SYLVAN ROAD 8120 12.8 9.1 141 14.7 11.6 127 YOUNTS PEAK 8350 15.7 12.8 123 13.7 11.9 115 ----- ----- Basin wide percent of average 131 139 POWDER-TONGUE BEAR TRAP MEADOW 7900 4.5 5.1 88 7.0 5.6 125 BIG GOOSE 7990 4.0 -M * 6.9 -M * BONE SPRINGS DIV 9350 11.3 11.2 101 11.5 9.9 116 BURGESS JUNCTION 7880 5.7 8.0 71 7.6 7.4 103 CLOUD PEAK RESERVOIR 9860 10.0 8.7 115 8.8 8.6 102 DOME LAKE 8880 5.9 9.5 62 7.6 9.1 84 GRAVE SPRINGS 8550 4.9 6.4 77 7.9 6.6 120 HANSEN SAWMILL 8760 3.9 4.9 80 6.0 5.2 115 MIDDLE POWDER 7760 5.1 8.2 62 11.1 8.1 137 POWDER RIVER PASS 9480 8.6 7.4 116 10.8 8.1 133 SUCKER CREEK 8880 7.0 8.0 88 9.1 9.0 101 TIE CREEK 6870 -M -M * -M 7.1 * ----- ----- Basin wide percent of average 86 113 BELLE FOURCHE BLIND PARK 6890 5.4 7.6 71 12.5 6.4 195 NORTH RAPID CREEK 6130 4.1 -M * 10.8 -M * WARREN PEAK 6520 6.0 7.6 79 10.9 5.4 202 ----- ----- Basin wide percent of average 75 198 UPPER N. PLATTE RIVER COLUMBINE 9400 15.0 16.9 89 16.3 17.3 94 DIVIDE PEAK 8800 14.1 14.1 100 19.6 16.7 117 ELK RIVER 8700 -M 13.5 * 17.8 13.1 136 JOE WRIGHT 10120 15.1 14.8 102 20.4 17.3 118 NORTH FRENCH CREEK 10100 20.9 16.9 124 20.3 15.9 128 OLD BATTLE 10000 20.3 21.7 94 26.6 20.5 130 SOUTH BRUSH CREEK 8400 5.3 7.6 70 15.1 11.2 135 TOWER 10500 31.3 31.6 99 27.2 25.4 107 WEBBER SPRINGS 9200 13.8 18.5 75 19.2 17.5 110 WILLOW CREEK PASS 9540 8.6 7.7 112 9.6 8.2 117 ----- ----- Basin wide percent of average 96 118 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 14.5 16.8 86 16.5 12.8 129 CASPER MTN. 7900 7.2 10.0 72 12.7 9.1 140 DEADMAN HILL 10220 13.2 11.7 113 13.9 10.9 128 DEER PARK 9700 10.5 -M * 14.6 -M * LAPRELE CREEK 8320 2.2 7.0 31 10.4 7.9 132 RENO HILL 8400 9.1 8.8 103 13.5 12.1 112 ROACH 9700 13.0 11.6 112 15.3 14.9 103 SAND LAKE 10080 23.8 22.4 106 21.4 13.8 155 SOUTH PASS 9040 12.0 11.9 101 13.3 11.4 117 WINDY PEAK 7840 3.8 4.8 79 9.6 6.2 155 ----- ----- Basin wide percent of average 94 128 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 10.5 7.8 135 13.7 11.3 121 DIVIDE PEAK 8800 14.1 14.1 100 19.6 16.7 117 OLD BATTLE 10000 20.3 21.7 94 26.6 20.5 130 SANDSTONE RS 8150 9.6 9.9 97 16.1 13.8 117 WHISKEY PARK 8950 18.5 19.5 95 22.3 20.5 109 ----- ----- Basin wide percent of average 100 119 UPPER GREEN RIVER BIG SANDY OPENING 9100 11.9 10.1 118 11.0 12.5 88 BLIND BULL SUM 8650 19.7 20.2 98 16.1 17.7 91 EAST RIM DIVIDE 7930 9.6 9.9 97 9.9 11.6 85 ELKHART PARK G.S. 9400 9.7 9.5 102 10.3 12.3 84 GROS VENTRE SUMMIT 8775 10.2 11.1 92 10.1 12.2 83 KENDALL R.S. 7740 10.4 10.5 99 11.0 11.9 92 LOOMIS PARK 8240 -M 12.4 * 14.2 14.4 99 NEW FORK LAKE 8340 8.8 8.3 106 8.8 11.1 79 SNIDER BASIN 8250 10.2 10.5 97 10.6 11.6 91 SPRING CREEK DIVIDE 9000 18.6 19.3 96 18.8 20.4 92 TRIPLE PEAK 8500 17.5 18.4 95 18.8 23.8 79 ----- ----- Basin wide percent of average 99 88 LOWER GREEN RIVER HAMS FORK 7840 8.3 8.7 95 7.6 10.3 74 HEWINTA 9500 6.2 6.7 93 9.3 8.8 106 HICKERSON PARK 9150 4.0 3.8 105 6.9 6.3 110 HOLE-IN-ROCK 9150 4.5 3.5 129 7.2 6.3 114 INDIAN CREEK 9425 18.3 19.1 96 15.4 19.2 80 KELLEY R.S. 8180 11.0 11.5 96 12.7 14.4 88 STEEL CREEK PARK 10100 9.0 10.3 87 11.1 9.0 123 ----- ----- Basin wide percent of average 96 94 UPPER BEAR RIVER BUG LAKE 7950 12.4 13.7 91 12.2 13.5 90 HAYDEN FORK 9400 8.7 11.0 79 12.7 12.6 101 KELLEY R.S. 8180 11.0 11.5 96 12.7 14.4 88 LILY LAKE 9050 8.4 8.7 97 11.9 10.0 119 MONTE CRISTO 8960 15.7 18.4 85 17.0 17.4 98 SALT RIVER SUMMIT 7600 10.0 9.7 103 12.3 12.9 95 TRIAL LAKE 9960 11.4 16.8 68 12.6 16.2 78 ----- ----- Basin wide percent of average 86 94 ----------------------------------------------------------------------------- -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.