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 TUESDAY: DECEMBER 29 , 1998 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 8.2 7.5 109 10.3 10.7 96 COTTONWOOD CREEK 7600 8.1 8.4 96 11.2 11.4 98 GRANITE CREEK 6770 6.5 6.9 94 8.6 11.3 76 GRASSY LAKE 7265 13.9 13.6 102 15.5 17.5 89 GROS VENTRE SUMMIT 8775 6.2 6.6 94 6.6 7.7 86 LEWIS LAKE DIVIDE 7860 13.5 13.1 103 16.2 17.7 92 PHILLIPS BENCH 8200 11.3 10.9 104 11.7 13.7 85 SALT RIVER SUMMIT 7600 4.6 4.8 96 7.0 8.2 85 SNAKE RIVER STATION 6920 -M 7.2 * -M 12.3 * SPRING CREEK DIVIDE 9000 9.8 11.1 88 10.7 12.7 84 THUMB DIVIDE 7980 9.7 6.9 141 10.0 10.1 99 TOGWOTEE PASS 9580 12.0 10.7 112 12.1 13.2 92 TWO OCEAN PLATEAU 9360 15.4 12.2 126 14.1 14.9 95 WILLOW CREEK 8450 11.3 12.2 93 16.8 15.0 112 ----- ----- Basin wide percent of average 104 92 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 10.3 11.1 93 9.5 8.2 116 BLACK BEAR 7950 19.3 14.9 130 18.9 16.5 115 CANYON 7940 7.1 5.1 139 8.1 6.6 123 FISHER CREEK 9100 16.6 14.9 111 15.0 15.3 98 MADISON PLATEAU 7750 -M 9.7 * 13.1 11.2 117 NORTHEAST ENTRANCE 7350 4.0 3.8 105 5.7 5.6 102 PARKER PEAK 9400 10.0 10.3 97 -M 7.3 * SYLVAN LAKE 8420 10.8 10.4 104 13.1 9.5 138 THUMB DIVIDE 7980 9.7 6.9 141 10.0 10.1 99 TWO OCEAN PLATEAU 9360 15.4 12.2 126 14.1 14.9 95 WHISKEY CREEK 6800 8.1 6.7 121 10.4 9.3 112 WHITE MILL 8700 10.0 10.9 92 9.6 12.3 78 WOLVERINE 7650 7.1 4.9 145 5.9 6.2 95 ----- ----- Basin wide percent of average 115 106 WIND RIVER BURROUGHS CREEK 8750 7.2 6.8 106 8.0 7.8 103 COLD SPRINGS 9630 4.9 4.3 114 6.5 5.4 120 DEER PARK 9700 6.2 -M * -M -M * HOBBS PARK 10100 8.2 7.5 109 8.5 6.7 127 LITTLE WARM 9620 5.7 4.9 116 6.9 6.4 108 SOUTH PASS 9040 7.0 8.0 88 8.6 7.7 112 ST. LAWRENCE ALT 8620 3.9 3.2 122 6.5 4.9 133 TOGWOTEE PASS 9580 12.0 10.7 112 12.1 13.2 92 TOWNSEND CREEK 8700 4.4 4.3 102 7.1 5.6 127 ----- ----- Basin wide percent of average 107 111 BIGHORN BASIN BALD MTN. 9375 6.5 9.8 66 6.5 8.4 77 BEAR TRAP MEADOW 7900 2.8 3.5 80 6.1 4.2 145 BLACKWATER 9780 14.0 9.5 147 12.2 8.5 144 BONE SPRINGS DIV 9350 5.6 7.6 74 6.2 6.7 93 EVENING STAR 9200 14.1 12.5 113 14.5 10.4 139 GRAVE SPRINGS 8550 2.7 4.4 61 6.0 5.0 120 KIRWIN 9550 6.3 5.0 126 7.3 5.1 143 MARQUETTE 8760 5.0 3.7 135 6.2 4.6 135 MIDDLE POWDER 7760 3.2 5.5 58 9.8 5.8 169 OWL CREEK 8975 3.5 1.8 194 4.5 2.7 167 POWDER RIVER PASS 9480 3.9 4.9 80 5.8 5.4 107 SHELL CREEK 9580 6.1 7.3 84 5.5 6.2 89 SYLVAN LAKE 8420 10.8 10.4 104 13.1 9.5 138 SYLVAN ROAD 8120 6.8 5.6 121 8.5 7.7 110 TIMBER CREEK 7950 3.2 2.3 139 5.3 3.2 166 YOUNTS PEAK 8350 9.3 8.6 108 8.3 7.7 108 ----- ----- Basin wide percent of average 101 124 SHOSHONE RIVER BLACKWATER 9780 14.0 9.5 147 12.2 8.5 144 EVENING STAR 9200 14.1 12.5 113 14.5 10.4 139 KIRWIN 9550 6.3 5.0 126 7.3 5.1 143 MARQUETTE 8760 5.0 3.7 135 6.2 4.6 135 SYLVAN LAKE 8420 10.8 10.4 104 13.1 9.5 138 SYLVAN ROAD 8120 6.8 5.6 121 8.5 7.7 110 YOUNTS PEAK 8350 9.3 8.6 108 8.3 7.7 108 ----- ----- Basin wide percent of average 120 131 POWDER-TONGUE BEAR TRAP MEADOW 7900 2.8 3.5 80 6.1 4.2 145 BIG GOOSE 7990 2.8 -M * 6.2 -M * BONE SPRINGS DIV 9350 5.6 7.6 74 6.2 6.7 93 BURGESS JUNCTION 7880 3.0 5.3 57 5.2 5.4 96 CLOUD PEAK RESERVOIR 9860 6.2 5.4 115 6.8 5.9 115 DOME LAKE 8880 3.2 6.1 52 4.9 6.7 73 GRAVE SPRINGS 8550 2.7 4.4 61 6.0 5.0 120 HANSEN SAWMILL 8760 2.9 3.2 91 5.0 3.8 132 MIDDLE POWDER 7760 3.2 5.5 58 9.8 5.8 169 POWDER RIVER PASS 9480 3.9 4.9 80 5.8 5.4 107 SUCKER CREEK 8880 3.9 5.0 78 6.7 6.3 106 TIE CREEK 6870 .9 -M * 4.1 5.2 79 ----- ----- Basin wide percent of average 73 110 BELLE FOURCHE BLIND PARK 6890 1.6 5.1 31 8.5 4.6 185 NORTH RAPID CREEK 6130 1.8 -M * 8.6 -M * WARREN PEAK 6520 1.9 5.1 37 8.0 3.8 211 ----- ----- Basin wide percent of average 34 196 UPPER N. PLATTE RIVER COLUMBINE 9400 6.3 9.3 68 9.1 10.4 88 DIVIDE PEAK 8800 6.9 9.2 75 13.4 11.4 118 ELK RIVER 8700 3.7 7.7 48 9.8 8.4 117 JOE WRIGHT 10120 7.3 10.1 72 11.3 11.2 101 NORTH FRENCH CREEK 10100 10.7 11.0 97 13.2 10.4 127 OLD BATTLE 10000 10.3 14.3 72 15.2 13.7 111 SOUTH BRUSH CREEK 8400 3.5 4.6 76 10.6 9.4 113 TOWER 10500 14.3 21.1 68 15.9 16.0 99 WEBBER SPRINGS 9200 6.7 11.7 57 11.3 12.7 89 WILLOW CREEK PASS 9540 5.0 5.5 91 6.4 5.9 108 ----- ----- Basin wide percent of average 71 106 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 6.4 11.6 55 9.0 8.3 108 CASPER MTN. 7900 3.5 7.3 48 9.4 6.9 136 DEADMAN HILL 10220 8.6 7.6 113 8.6 7.2 119 DEER PARK 9700 6.2 -M * -M -M * LAPRELE CREEK 8320 .9 4.5 20 7.2 4.9 147 RENO HILL 8400 4.9 6.0 82 9.8 9.4 104 ROACH 9700 5.9 7.4 80 9.0 9.8 92 SAND LAKE 10080 11.8 14.5 81 13.5 9.1 148 SOUTH PASS 9040 7.0 8.0 88 8.6 7.7 112 WINDY PEAK 7840 1.6 3.2 50 7.9 4.0 198 ----- ----- Basin wide percent of average 72 123 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 3.1 4.8 65 8.6 7.2 119 DIVIDE PEAK 8800 6.9 9.2 75 13.4 11.4 118 OLD BATTLE 10000 10.3 14.3 72 15.2 13.7 111 SANDSTONE RS 8150 -M 5.9 * -M 8.6 * WHISKEY PARK 8950 7.2 12.3 59 12.7 11.3 112 ----- ----- Basin wide percent of average 68 114 UPPER GREEN RIVER BIG SANDY OPENING 9100 7.1 5.7 125 6.7 7.9 85 BLIND BULL SUM 8650 10.6 12.1 88 9.3 10.5 89 EAST RIM DIVIDE 7930 5.1 5.4 94 5.9 7.3 81 ELKHART PARK G.S. 9400 5.5 5.6 98 6.3 7.7 82 GROS VENTRE SUMMIT 8775 6.2 6.6 94 6.6 7.7 86 KENDALL R.S. 7740 5.8 5.6 104 6.6 7.5 88 LOOMIS PARK 8240 6.6 6.7 99 7.8 9.1 86 NEW FORK LAKE 8340 4.8 4.4 109 5.4 7.0 77 SNIDER BASIN 8250 5.3 5.7 93 6.3 7.3 86 SPRING CREEK DIVIDE 9000 9.8 11.1 88 10.7 12.7 84 TRIPLE PEAK 8500 10.0 10.4 96 11.6 15.0 77 ----- ----- Basin wide percent of average 97 83 LOWER GREEN RIVER HAMS FORK 7840 3.8 4.1 93 4.5 6.4 70 HEWINTA 9500 3.0 3.7 81 5.6 6.2 90 HICKERSON PARK 9150 2.2 2.5 88 5.0 4.7 106 HOLE-IN-ROCK 9150 3.0 2.2 136 5.5 4.7 117 INDIAN CREEK 9425 9.4 11.1 85 8.5 12.1 70 KELLEY R.S. 8180 5.5 6.4 86 7.3 9.0 81 STEEL CREEK PARK 10100 4.6 7.0 66 7.1 6.6 108 ----- ----- Basin wide percent of average 85 88 UPPER BEAR RIVER BUG LAKE 7950 5.2 8.5 61 6.5 9.2 71 HAYDEN FORK 9400 4.6 6.5 71 8.0 8.5 94 KELLEY R.S. 8180 5.5 6.4 86 7.3 9.0 81 LILY LAKE 9050 4.4 5.9 75 7.4 7.0 106 MONTE CRISTO 8960 6.6 10.6 62 10.1 11.9 85 SALT RIVER SUMMIT 7600 4.6 4.8 96 7.0 8.2 85 TRIAL LAKE 9960 4.7 10.3 46 6.0 10.6 57 ----- ----- Basin wide percent of average 67 81 ----------------------------------------------------------------------------- -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.