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Weekly SNOTEL Snowpack Comparison Tables

Data from 138 SNOTEL sites. SWE = Snow Water Equivalent.

April 21, 2008
Basin This Year Percent of Average This Week versus Last Week Last Year Percent of Average This Year as Percent of Last Year
Kootenai 120% 7% 87% 138%
Flathead 113% 7% 82% 138%
Upper Clark Fork 102% 3% 84% 121%
Bitterroot 133% 8% 71% 187%
Lower Clark Fork 127% 7% 74% 172%
Jefferson 103% 3% 75% 137%
Madison 111% 3% 73% 152%
Gallatin 108% 4% 76% 142%
Missouri Headwaters 108% 4% 74% 146%
Headwaters Mainstem 98% 4% 86% 114%
Smith, Judith, Musselshell 106% 10% 88% 120%
Sun, Teton, Marias 110% 5% 81% 136%
Missouri Mainstem 107% 7% 85% 126%
St. Mary 115% 7% 82% 140%
Upper Yellowstone 108% 1% 72% 150%
Lower Yellowstone 101% -2% 78% 129%
State-wide 111% 5% 79% 140%


April 28, 2008
Basin This Year Percent of Average This Week versus Last Week Last Year Percent of Average This Year as Percent of Last Year
Kootenai 130% 10% 84% 155%
Flathead 122% 9% 80% 153%
Upper Clark Fork 108% 6% 83% 130%
Bitterroot 142% 9% 65% 218%
Lower Clark Fork 137% 10% 70% 196%
Jefferson 108% 5% 74% 146%
Madison 115% 4% 73% 158%
Gallatin 114% 6% 74% 154%
Missouri Headwaters 114% 6% 73% 156%
Headwaters Mainstem 105% 7% 81% 130%
Smith, Judith, Musselshell 120% 14% 82% 146%
Sun, Teton, Marias 118% 8% 73% 162%
Missouri Mainstem 117% 10% 78% 150%
St. Mary 122% 7% 79% 153%
Upper Yellowstone 114% 6% 70% 163%
Lower Yellowstone 104% 3% 76% 137%
State-wide 118% 7% 76% 155%


May 5, 2008
Basin This Year Percent of Average This Week versus Last Week Last Year Percent of Average This Year as Percent of Last Year
Kootenai 133% 3% 84% 158%
Flathead 121% -1% 82% 148%
Upper Clark Fork 103% -5% 79% 130%
Bitterroot 146% 4% 61% 239%
Lower Clark Fork 142% 5% 64% 222%
Jefferson 111% 3% 63% 176%
Madison 120% 5% 62% 194%
Gallatin 119% 5% 60% 198%
Missouri Headwaters 118% 4% 61% 193%
Headwaters Mainstem 104% -1% 59% 176%
Smith, Judith, Musselshell 124% 4% 67% 185%
Sun, Teton, Marias 120% 2% 60% 200%
Missouri Mainstem 118% 1% 61% 193%
St. Mary 115% -7% 83% 139%
Upper Yellowstone 114% 0% 59% 193%
Lower Yellowstone 108% 4% 59% 183%
State-wide 120% 2% 66% 180%


May 12, 2008
Basin This Year Percent of Average This Week versus Last Week Last Year Percent of Average This Year as Percent of Last Year
Kootenai 143% 10% 73% 196%
Flathead 125% 4% 77% 162%
Upper Clark Fork 106% 3% 65% 163%
Bitterroot 150% 4% 51% 294%
Lower Clark Fork 143% 1% 49% 292%
Jefferson 113% 2% 50% 226%
Madison 124% 4% 47% 264%
Gallatin 129% 10% 46% 280%
Missouri Headwaters 122% 4% 46% 265%
Headwaters Mainstem 105% 1% 38% 276%
Smith, Judith, Musselshell 126% 2% 42% 300%
Sun, Teton, Marias 128% 8% 49% 261%
Missouri Mainstem 121% 3% 43% 281%
St. Mary 115% 0% 80% 143%
Upper Yellowstone 120% 6% 48% 250%
Lower Yellowstone 109% 1% 59% 185%
State-wide 124% 4% 54% 229%

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Last Modified: 05/12/2008