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: OCTOBER 30 , 2006
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
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WYOMING
SNAKE RIVER
BASE CAMP 7030 .2 .6 33* 2.4 2.0 120
COTTONWOOD CREEK 7600 1.5 .9 167* 3.1 2.9 107
GRANITE CREEK 6770 .2 .5 40* 2.6 1.7 153
GRASSY LAKE 7265 1.8 1.4 129* 5.9 3.3 179
GROS VENTRE SUMMIT 8750 1.9 1.3 146* 2.8 1.8 156
LEWIS LAKE DIVIDE 7850 1.5 1.2 125* 4.2 3.1 135
PHILLIPS BENCH 8200 1.2 1.3 92* 3.6 2.3 157
SALT RIVER SUMMIT 7600 .4 .4 100* 2.1 1.9 111
SNAKE RIVER STATION 6920 .2 .5 40* 4.4 2.2 200
SPRING CREEK DIVIDE 9000 1.3 1.4 93* 2.4 2.5 96
THUMB DIVIDE 7980 .2 .8 25* 2.4 2.0 120
TOGWOTEE PASS 9580 2.7 2.5 108* 3.4 2.7 126
TWO OCEAN PLATEAU 9240 2.1 3.0 70* 3.1 3.0 103
WILLOW CREEK 8450 1.2 1.7 71* 3.6 3.6 100
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Basin wide percent of average 94* 131
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 2.2 2.5 88* 2.6 2.1 124
BLACK BEAR 8170 2.4 2.7 89* 5.2 3.4 153
CANYON 8090 .9 .6 150* 2.9 1.8 161
FISHER CREEK 9100 -M 2.6 * -M 3.2 *
MADISON PLATEAU 7750 .9 1.5 60* 3.0 2.4 125
NORTHEAST ENTRANCE 7350 .0 .3 0* 3.4 1.5 227
PARKER PEAK 9400 1.8 2.4 75* 3.1 2.2 141
SYLVAN LAKE 8420 1.3 1.9 68* 4.3 2.5 172
THUMB DIVIDE 7980 .2 .8 25* 2.4 2.0 120
TWO OCEAN PLATEAU 9240 2.1 3.0 70* 3.1 3.0 103
WHISKEY CREEK 6800 .2 .7 29* -M 2.2 *
WHITE MILL 8700 2.4 1.9 126* 3.9 2.6 150
WOLVERINE 7650 .1 .5 20* 1.9 1.8 106
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Basin wide percent of average 77* 142
WIND RIVER
BURROUGHS CREEK 8750 2.0 .9 222* 2.7 1.6 169
COLD SPRINGS 9630 .8 1.0 80 1.6 1.9 84
DEER PARK 9700 1.7 2.5 68 2.8 2.4 117
HOBBS PARK 10100 1.8 2.1 86 2.1 2.1 100
LITTLE WARM 9370 1.5 1.0 150* 1.8 1.7 106
SOUTH PASS 9040 1.5 1.5 100* 2.9 2.1 138
ST. LAWRENCE ALT 8620 1.4 .8 175 1.8 1.7 106
TOGWOTEE PASS 9580 2.7 2.5 108* 3.4 2.7 126
TOWNSEND CREEK 8700 1.9 1.0 190 3.3 2.1 157
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Basin wide percent of average 115 122
BIGHORN BASIN
BALD MTN. 9380 5.0 2.6 192 3.9 2.3 170
BEAR TRAP MEADOW 8200 .9 .6 150 1.5 1.7 88
BLACKWATER 9780 2.1 3.0 70 2.6 2.6 100
BONE SPRINGS DIV 9350 4.1 2.5 164 3.3 2.4 138
EVENING STAR 9200 2.4 2.6 92* 4.0 2.7 148
GRAVE SPRINGS 8550 1.0 1.1 91* 1.4 2.1 67
KIRWIN 9550 1.8 1.8 100 2.5 1.8 139
MARQUETTE 8760 1.1 1.9 58 2.1 2.2 95
MIDDLE POWDER 7760 1.3 1.2 108* 1.6 2.5 64
OWL CREEK 8975 1.7 .8 212 2.0 1.1 182
POWDER RIVER PASS 9480 1.4 1.2 117 2.1 1.9 111
SHELL CREEK 9580 4.3 2.6 165 2.4 2.0 120
SYLVAN LAKE 8420 1.3 1.9 68* 4.3 2.5 172
SYLVAN ROAD 7120 .7 .5 140* 2.9 2.1 138
TIMBER CREEK 7950 1.1 1.0 110 2.1 1.6 131
YOUNTS PEAK 8350 1.1 1.3 85* 3.2 1.8 178
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Basin wide percent of average 118 126
SHOSHONE RIVER
BLACKWATER 9780 2.1 3.0 70 2.6 2.6 100
EVENING STAR 9200 2.4 2.6 92* 4.0 2.7 148
KIRWIN 9550 1.8 1.8 100 2.5 1.8 139
MARQUETTE 8760 1.1 1.9 58 2.1 2.2 95
SYLVAN LAKE 8420 1.3 1.9 68* 4.3 2.5 172
SYLVAN ROAD 7120 .7 .5 140* 2.9 2.1 138
YOUNTS PEAK 8350 1.1 1.3 85* 3.2 1.8 178
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Basin wide percent of average 81* 138
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .9 .6 150 1.5 1.7 88
BIG GOOSE 7990 1.0 .8 125* 1.5 2.1 71
BONE SPRINGS DIV 9350 4.1 2.5 164 3.3 2.4 138
BURGESS JUNCTION 7880 1.4 1.5 93 2.7 2.2 123
CLOUD PEAK RESERVOIR 9860 1.5 1.5 100* 1.9 2.5 76
DOME LAKE 8880 1.3 1.8 72 2.1 2.4 88
GRAVE SPRINGS 8550 1.0 1.1 91* 1.4 2.1 67
HANSEN SAWMILL 8360 .7 .8 87 .8 1.8 44
MIDDLE POWDER 7760 1.3 1.2 108* 1.6 2.5 64
POWDER RIVER PASS 9480 1.4 1.2 117 2.1 1.9 111
SUCKER CREEK 8880 2.2 1.3 169* 2.8 2.3 122
TIE CREEK 6870 .2 .8 25 2.7 2.4 113
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Basin wide percent of average 113 93
BELLE FOURCHE
BLIND PARK 6890 .8 .5 160* 1.6 2.5 64
COLE CANYON 5910 .0 .8 0 1.7 -M *
NORTH RAPID CREEK 6130 .0 .5 0* 1.3 2.4 54
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Basin wide percent of average 44* 59
UPPER N. PLATTE RIVER
COLUMBINE 9160 2.0 .8 250* 4.4 2.3 191
DIVIDE PEAK 8860 3.7 1.7 218* 5.6 2.6 215
ELK RIVER 8700 2.0 .6 333* 4.0 2.2 182
JOE WRIGHT 10120 3.5 2.5 140* 4.7 3.3 142
NORTH FRENCH CREEK 10130 3.7 3.1 119* 4.8 3.3 145
OLD BATTLE 9920 4.6 3.0 153* 6.5 3.5 186
SAGE CREEK BASIN 7850 2.8 .9 311* 3.9 1.5 260
SOUTH BRUSH CREEK 8440 1.7 .7 243* 3.1 2.5 124
TOWER 10500 5.4 3.4 159* 7.0 3.8 184
WEBBER SPRINGS 9250 3.0 1.8 167* 5.8 3.0 193
WILLOW CREEK PASS 9540 2.6 1.1 236* 2.4 2.0 120
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Basin wide percent of average 179* 174
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 3.0 2.1 143* 3.9 2.4 162
CASPER MTN. 7850 1.3 1.7 76* 1.8 2.4 75
DEADMAN HILL 10220 1.5 2.1 71 3.4 2.4 142
DEER PARK 9700 1.7 2.5 68 2.8 2.4 117
LAPRELE CREEK 8375 1.2 1.0 120* 1.7 1.9 89
RENO HILL 8500 2.0 1.7 118 2.8 2.4 117
ROACH 9700 3.8 1.2 317* 4.8 2.2 218
SAND LAKE 10050 3.9 3.2 122* 4.6 3.0 153
SOUTH PASS 9040 1.5 1.5 100* 2.9 2.1 138
WINDY PEAK 7900 1.0 .5 200* 1.6 1.7 94
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Basin wide percent of average 119* 132
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .3 .5 60* 3.4 1.9 179
DIVIDE PEAK 8860 3.7 1.7 218* 5.6 2.6 215
OLD BATTLE 9920 4.6 3.0 153* 6.5 3.5 186
SANDSTONE RS 8150 .9 .5 180* 3.4 2.2 155
WHISKEY PARK 8950 2.5 1.6 156* 4.9 2.8 175
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Basin wide percent of average 164* 183
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.5 1.2 125* 2.2 1.8 122
BLIND BULL SUM 8900 1.3 1.6 81* 2.1 2.2 95
EAST RIM DIVIDE 7930 .1 .6 17* 1.9 1.3 146
ELKHART PARK G.S. 9400 .6 .8 75* 2.3 1.9 121
GROS VENTRE SUMMIT 8750 1.9 1.3 146* 2.8 1.8 156
KENDALL R.S. 7740 .3 .6 50* 2.3 1.5 153
LOOMIS PARK 8240 .5 .9 56* 2.3 1.8 128
NEW FORK LAKE 8340 .7 .5 140* 2.5 1.5 167
SNIDER BASIN 8060 .9 .7 129* 1.7 1.6 106
SPRING CREEK DIVIDE 9000 1.3 1.4 93* 2.4 2.5 96
TRIPLE PEAK 8500 1.2 1.2 100* 2.4 2.2 109
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Basin wide percent of average 95* 124
LOWER GREEN RIVER
HAMS FORK 7840 .5 .4 125* 2.0 1.4 143
HEWINTA 9500 -M .8 * 3.4 2.3 148
HICKERSON PARK 9100 .0 .4 0* 2.9 1.7 171
HOLE-IN-ROCK 9150 1.1 .4 275* 2.6 1.6 162
INDIAN CREEK 9425 1.4 1.5 93* 2.5 2.5 100
KELLEY R.S. 8180 1.0 .9 111* 2.3 2.1 110
STEEL CREEK PARK 10100 1.9 1.6 119* 3.3 2.2 150
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Basin wide percent of average 113* 138
UPPER BEAR RIVER
BUG LAKE 7950 1.2 1.2 100* 2.3 2.2 105
HAYDEN FORK 9100 -M .8 * -M 2.3 *
KELLEY R.S. 8180 1.0 .9 111* 2.3 2.1 110
LILY LAKE 9050 .6 .9 67* 3.4 2.3 148
MONTE CRISTO 8960 1.7 1.6 106* 3.9 2.7 144
SALT RIVER SUMMIT 7600 .4 .4 100* 2.1 1.9 111
TRIAL LAKE 9960 1.0 1.9 53* 4.1 2.7 152
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Basin wide percent of average 86* 130
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Average Snow Water Equivalent and
Total Precipitation values
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 1971-2000.
Provisional data, subject to revision.
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-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.