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 MONDAY: NOVEMBER 23 , 1998 ----------------------------------------------------------------------------- BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Average Avg Current Average Avg ----------------------------------------------------------------------------- WYOMING SNAKE RIVER BASE CAMP 7030 3.0 3.0 100 4.3 5.3 81 COTTONWOOD CREEK 7600 2.9 3.3 88 6.0 5.6 107 GRANITE CREEK 6770 1.9 2.7 70 3.2 5.6 57 GRASSY LAKE 7265 5.7 5.3 108 7.3 8.6 85 GROS VENTRE SUMMIT 8775 3.2 3.0 107 3.9 3.9 100 LEWIS LAKE DIVIDE 7860 5.3 5.4 98 7.5 8.7 86 PHILLIPS BENCH 8200 4.6 4.2 110 5.2 6.7 78 SALT RIVER SUMMIT 7600 1.4 1.6 88 3.5 4.0 88 SNAKE RIVER STATION 6920 3.1 3.0 103 4.9 6.0 82 SPRING CREEK DIVIDE 9000 3.3 4.8 69 4.7 6.1 77 THUMB DIVIDE 7980 4.6 2.8 164 4.8 4.9 98 TOGWOTEE PASS 9580 5.7 5.0 114 6.0 6.5 92 TWO OCEAN PLATEAU 9360 7.7 6.6 117 7.0 7.3 96 WILLOW CREEK 8450 4.3 4.8 90 8.9 7.3 122 ----- ----- Basin wide percent of average 102 89 UPPER YELLOWSTONE-MADISON BEARTOOTH LAKE 9275 4.9 5.9 83 4.2 4.2 100 BLACK BEAR 7950 8.8 6.8 129 8.8 8.2 107 CANYON 7940 2.8 2.2 127 3.3 3.6 92 FISHER CREEK 9100 7.2 7.0 103 6.8 7.5 91 MADISON PLATEAU 7750 -M 4.2 * 6.0 5.7 105 NORTHEAST ENTRANCE 7350 1.5 1.4 107 2.8 3.1 90 PARKER PEAK 9400 4.8 6.2 77 -M 4.3 * SYLVAN LAKE 8420 6.0 5.6 107 7.7 5.5 140 THUMB DIVIDE 7980 4.6 2.8 164 4.8 4.9 98 TWO OCEAN PLATEAU 9360 7.7 6.6 117 7.0 7.3 96 WHISKEY CREEK 6800 3.3 2.9 114 4.4 4.7 94 WHITE MILL 8700 4.3 4.9 88 4.5 6.2 73 WOLVERINE 7650 2.2 1.8 122 3.1 3.4 91 ----- ----- Basin wide percent of average 107 99 WIND RIVER BURROUGHS CREEK 8750 2.9 2.9 100 3.5 4.2 83 COLD SPRINGS 9630 3.1 2.3 135 4.5 3.4 132 DEER PARK 9700 4.7 -M * 6.4 -M * HOBBS PARK 10100 5.4 4.4 123 6.2 3.8 163 LITTLE WARM 9620 3.0 2.7 111 3.8 3.8 100 SOUTH PASS 9040 4.0 4.6 87 5.7 4.5 127 ST. LAWRENCE ALT 8620 2.7 1.7 159 5.0 3.2 156 TOGWOTEE PASS 9580 5.7 5.0 114 6.0 6.5 92 TOWNSEND CREEK 8700 3.6 2.3 157 6.0 3.4 176 ----- ----- Basin wide percent of average 117 124 BIGHORN BASIN BALD MTN. 9375 4.9 5.1 96 4.9 4.4 111 BEAR TRAP MEADOW 7900 2.0 1.8 111 4.9 2.7 181 BLACKWATER 9780 7.7 5.0 154 6.7 4.7 143 BONE SPRINGS DIV 9350 3.7 4.4 84 4.2 3.8 111 EVENING STAR 9200 5.4 7.4 73 6.4 5.8 110 GRAVE SPRINGS 8550 1.9 -M * 5.2 3.1 168 KIRWIN 9550 3.8 2.9 131 4.2 3.1 135 MARQUETTE 8760 3.9 2.0 195 4.7 3.0 157 MIDDLE POWDER 7760 1.8 3.1 58 7.9 3.6 219 OWL CREEK 8975 2.5 1.0 250 3.3 1.7 194 POWDER RIVER PASS 9480 2.1 2.7 78 4.0 3.3 121 SHELL CREEK 9580 4.2 4.2 100 3.8 3.5 109 SYLVAN LAKE 8420 6.0 5.6 107 7.7 5.5 140 SYLVAN ROAD 8120 3.3 3.0 110 4.0 4.4 91 TIMBER CREEK 7950 2.6 .9 289 4.1 2.2 186 YOUNTS PEAK 8350 4.5 4.6 98 3.9 4.2 93 ----- ----- Basin wide percent of average 109 135 SHOSHONE RIVER BLACKWATER 9780 7.7 5.0 154 6.7 4.7 143 EVENING STAR 9200 5.4 7.4 73 6.4 5.8 110 KIRWIN 9550 3.8 2.9 131 4.2 3.1 135 MARQUETTE 8760 3.9 2.0 195 4.7 3.0 157 SYLVAN LAKE 8420 6.0 5.6 107 7.7 5.5 140 SYLVAN ROAD 8120 3.3 3.0 110 4.0 4.4 91 YOUNTS PEAK 8350 4.5 4.6 98 3.9 4.2 93 ----- ----- Basin wide percent of average 113 122 POWDER-TONGUE BEAR TRAP MEADOW 7900 2.0 1.8 111 4.9 2.7 181 BIG GOOSE 7990 1.6 -M * 4.6 -M * BONE SPRINGS DIV 9350 3.7 4.4 84 4.2 3.8 111 BURGESS JUNCTION 7880 1.8 3.1 58 4.2 3.3 127 CLOUD PEAK RESERVOIR 9860 3.4 2.8 121 4.9 3.7 132 DOME LAKE 8880 2.1 3.5 60 3.7 4.1 90 GRAVE SPRINGS 8550 1.9 -M * 5.2 3.1 168 HANSEN SAWMILL 8760 1.5 1.8 83 3.3 2.6 127 MIDDLE POWDER 7760 1.8 3.1 58 7.9 3.6 219 POWDER RIVER PASS 9480 2.1 2.7 78 4.0 3.3 121 SUCKER CREEK 8880 2.9 2.4 121 4.6 3.7 124 TIE CREEK 6870 .8 -M * 3.2 3.1 103 ----- ----- Basin wide percent of average 83 135 BELLE FOURCHE BLIND PARK 6890 1.1 2.9 38 7.4 2.8 264 NORTH RAPID CREEK 6130 1.0 -M * 7.7 -M * WARREN PEAK 6520 1.3 2.9 45 7.6 2.4 317 ----- ----- Basin wide percent of average 41 288 UPPER N. PLATTE RIVER COLUMBINE 9400 3.1 4.1 76 6.1 5.2 117 DIVIDE PEAK 8800 4.0 4.8 83 9.6 5.7 168 ELK RIVER 8700 1.8 2.6 69 7.8 4.4 177 JOE WRIGHT 10120 4.2 5.8 72 9.0 6.7 134 NORTH FRENCH CREEK 10100 8.2 5.7 144 10.5 5.1 206 OLD BATTLE 10000 6.8 7.4 92 10.5 7.3 144 SOUTH BRUSH CREEK 8400 3.5 1.9 184 8.6 4.4 195 TOWER 10500 10.7 11.8 91 11.1 8.3 134 WEBBER SPRINGS 9200 3.7 5.7 65 7.7 7.0 110 WILLOW CREEK PASS 9540 3.8 2.6 146 5.2 3.3 158 ----- ----- Basin wide percent of average 95 150 LOWER N. PLATTE - SWEETWATER - LARAMIE BROOKLYN LAKE 10240 4.1 5.7 72 6.3 4.5 140 CASPER MTN. 7900 2.9 3.8 76 8.6 4.5 191 DEADMAN HILL 10220 4.8 3.6 133 6.1 4.4 139 DEER PARK 9700 4.7 -M * 6.4 -M * LAPRELE CREEK 8320 .5 2.3 22 6.2 2.8 221 RENO HILL 8400 4.7 3.4 138 8.6 5.5 156 ROACH 9700 3.3 3.8 87 5.7 5.3 108 SAND LAKE 10080 9.3 7.5 124 10.7 5.1 210 SOUTH PASS 9040 4.0 4.6 87 5.7 4.5 127 WINDY PEAK 7840 .8 1.7 47 6.3 2.3 274 ----- ----- Basin wide percent of average 95 165 LITTLE SNAKE RIVER BATTLE MOUNTAIN 7440 1.3 1.9 68 6.2 3.9 159 DIVIDE PEAK 8800 4.0 4.8 83 9.6 5.7 168 OLD BATTLE 10000 6.8 7.4 92 10.5 7.3 144 SANDSTONE RS 8150 1.4 2.5 56 7.2 4.3 167 WHISKEY PARK 8950 4.4 5.8 76 9.6 5.1 188 ----- ----- Basin wide percent of average 80 164 UPPER GREEN RIVER BIG SANDY OPENING 9100 3.4 2.5 136 3.7 3.9 95 BLIND BULL SUM 8650 4.2 6.1 69 4.9 5.2 94 EAST RIM DIVIDE 7930 1.6 1.4 114* 2.5 3.6 69 ELKHART PARK G.S. 9400 3.0 2.5 120 3.7 3.9 95 GROS VENTRE SUMMIT 8775 3.2 3.0 107 3.9 3.9 100 KENDALL R.S. 7740 2.1 1.9 111 2.8 3.7 76 LOOMIS PARK 8240 2.0 2.6 77 3.4 4.5 76 NEW FORK LAKE 8340 1.8 1.5 120 2.4 3.5 69 SNIDER BASIN 8250 1.5 2.1 71 2.6 3.6 72 SPRING CREEK DIVIDE 9000 3.3 4.8 69 4.7 6.1 77 TRIPLE PEAK 8500 3.7 4.3 86 5.3 7.3 73 ----- ----- Basin wide percent of average 91 81 LOWER GREEN RIVER HAMS FORK 7840 1.0 1.2 83* 2.7 3.2 84 HEWINTA 9500 .8 1.8 44 4.2 3.9 108 HICKERSON PARK 9150 1.5 1.4 107 4.0 3.2 125 HOLE-IN-ROCK 9150 .8 1.1 73 4.4 3.2 138 INDIAN CREEK 9425 3.8 5.0 76 4.1 6.0 68 KELLEY R.S. 8180 1.9 2.5 76 3.4 4.5 76 STEEL CREEK PARK 10100 3.3 4.1 80 5.3 4.0 132 ----- ----- Basin wide percent of average 77 100 UPPER BEAR RIVER BUG LAKE 7950 1.4 3.7 38 3.7 5.6 66 HAYDEN FORK 9400 2.4 2.9 83 5.1 4.7 109 KELLEY R.S. 8180 1.9 2.5 76 3.4 4.5 76 LILY LAKE 9050 3.2 2.8 114 5.7 4.4 130 MONTE CRISTO 8960 3.2 4.6 70 6.0 6.7 90 SALT RIVER SUMMIT 7600 1.4 1.6 88 3.5 4.0 88 TRIAL LAKE 9960 3.3 4.9 67 4.9 6.1 80 ----- ----- Basin wide percent of average 73 90 ----------------------------------------------------------------------------- -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.