| Salt Lake City Public Utilities | |||||||||||||
| Hydrology Department | |||||||||||||
| Snow Survey for June 1st | |||||||||||||
| by Dan Schenck & Larry Alserda | |||||||||||||
| Snow Surveys on the Web! www.slcgov.com/utilities/snow_survey.htm | |||||||||||||
| Little Cottonwood watershed | |||||||||||||
| Alta Central snow course elevation 8800' 19 years of record | Snowbird Snotel elevation 9160' 26 years of record | ||||||||||||
| water content | snow depth | density | percent | date of | water content | snow depth | density | percent | date of | ||||
| year | (inches) | (inches) | (percent) | of normal | sampling | year | (inches) | (inches) | (percent) | of normal | sampling | ||
| 2002 | 4.7 | 8 | 57 | 39.5% | 30-May | 2002 | 22.1 | 46 | 48 | 133% | 30-May | ||
| 2001 | 0 | 0 | 0 | 0.0% | 2001 | 0 | 0 | 0 | 0% | ||||
| 2000 | 0 | 0 | 0 | 0.0% | 2000 | 4 | 9 | 44 | 24% | ||||
| 1999 | 16.5 | 37 | 45 | 138.7% | 1999 | 26 | 58 | 45 | 157% | ||||
| 1998 | 17.4 | 34 | 51 | 146.2% | 1998 | 23.5 | 53 | 44 | 142% | ||||
| 1997 | 19.8 | 40 | 50 | 166.4% | 1997 | 27.5 | 57 | 48 | 166% | ||||
| 1996 | 20.3 | 37 | 55 | 170.6% | 1996 | 36.6 | 78 | 47 | 220% | ||||
| 1995 | 47.7 | 101 | 47 | 400.8% | 1995 | 60.8 | 132 | 46 | 366% | ||||
| 1994 | 0 | 0 | 0 | 0.0% | 1994 | 0.5 | 1 | 40 | 3% | ||||
| 1993 | 24.6 | 46 | 53 | 206.7% | 1990 | 8.2 | 49% | ||||||
| 1992 | 0 | 0 | 0 | 0.0% | 1989 | 5.2 | 31% | ||||||
| 1991 | 24.1 | 53 | 45 | 202.5% | 1984 | 34.6 | 55 | 63 | 208% | ||||
| 1990 | 0 | 0 | 0 | 0.0% | |||||||||
| 1989 | 0 | 0 | 0 | 0.0% | |||||||||
| 1988 | 0.2 | 1.0 | 20.0 | 1.7% | |||||||||
| 1984 | 24.3 | 54.0 | 45.0 | 204.2% | |||||||||
| average | 11.9 | average | 16.6 | ||||||||||
| Big Cottonwood watershed | |||||||||||||
| Silver Lake snow course elevation 8700' 68 years of record | Brighton Cabin snow course elevation 8700' 81 years of record | ||||||||||||
| water content | snow depth | density | percent | date of | water content | snow depth | density | percent | date of | ||||
| year | (inches) | (inches) | (percent) | of normal | sampling | year | (inches) | (inches) | (percent) | of normal | sampling | ||
| 2002 | 0 | 0 | 0 | 0.0% | 29-May | 2002 | 0 | 0 | 0 | 0.0% | 29-May | ||
| 2001 | 0 | 0 | 0 | 0.0% | 2001 | 0 | 0 | 0 | 0.0% | ||||
| 2000 | 0 | 0 | 0 | 0.0% | 2000 | 0 | 0 | 0 | 0.0% | ||||
| 1999 | 14.7 | 21 | 70 | 207.0% | 1999 | 8.7 | 19 | 46 | 177.6% | ||||
| 1998 | 7.4 | 13 | 51 | 104.2% | 1998 | 4.3 | 9 | 47 | 87.8% | ||||
| 1997 | 7.8 | 12 | 65 | 109.9% | 1997 | 4 | 8 | 48 | 81.6% | ||||
| 1996 | 12.6 | 16 | 79 | 177.5% | 1996 | 9.3 | 18 | 51 | 189.8% | ||||
| 1995 | 35.6 | 63 | 57 | 501.4% | 1995 | 30.7 | 63 | 48 | 626.5% | ||||
| 1994 | 0 | 0 | 0 | 0.0% | 1994 | 0 | 0 | 0 | 0.0% | ||||
| 1993 | 14.4 | 19 | 75 | 202.8% | 1993 | 9.7 | 18 | 54 | 198.0% | ||||
| 1992 | 0.0 | 0 | 0 | 0.0% | 1992 | 0.0 | 0 | 0 | 0.0% | ||||
| 1991 | 10.9 | 17 | 63 | 153.5% | 1991 | 7.0 | 17 | 41 | 142.9% | ||||
| 1990 | 0.0 | 0 | 0 | 0.0% | 1990 | 0.0 | 0 | 0 | 0.0% | ||||
| 1989 | 0.0 | 0 | 0 | 0.0% | 1989 | 0.0 | 0 | 0 | 0.0% | ||||
| 1988 | 0.0 | 0 | 0 | 0.0% | 1988 | 0.0 | 0 | 0 | 0.0% | ||||
| 1984 | 14.3 | 19 | 74 | 201.4% | 1984 | 8.4 | 16 | 54 | 171.4% | ||||
| 1983 | 41.7 | 75 | 55 | 587.3% | 1983 | 32.3 | 66 | 49 | 659.2% | ||||
| 1977 | 0 | 0 | 0 | 0.0% | 1977 | 0.0 | 0 | 0 | 0.0% | ||||
| 1952 | 0.0 | 0 | 0 | 0.0% | 1952 | N/A | |||||||
| average | 7.1 | average | 4.9 | ||||||||||
| City Creek Lakes snow course elevation 7550' 19 years of record | Millcreek snow course elevation 7000' 29 years of record | ||||||||||||
| water content | snow depth | density | percent | date of | water content | snow depth | density | percent | date of | ||||
| year | (inches) | (inches) | (percent) | of normal | sampling | year | (inches) | (inches) | (percent) | of normal | sampling | ||
| 2002 | 0 | 0 | 0 | 0% | 30-May | 2002 | 0.9 | 2 | 53 | 21% | 30-May | ||
| 2001 | 0 | 0 | 0 | 0% | 2001 | 0 | 0 | 0 | 0% | ||||
| 2000 | 0 | 0 | 0 | 0% | 2000 | 0 | 0 | 0 | 0% | ||||
| 1999 | 0 | 0 | 0 | 0% | 1999 | 3 | 7 | 43 | 71% | ||||
| 1998 | 0 | 0 | 0 | 0% | 1998 | 7.1 | 16 | 44 | 169% | ||||
| 1997 | 0 | 0 | 0 | 0% | 1997 | 3.4 | 8 | 45 | 81% | ||||
| 1996 | 0 | 0 | 0 | 0% | 1996 | 2.4 | 4 | 56 | 57% | ||||
| 1995 | 11.6 | 23 | 50 | 773% | 1995 | 9.4 | 20 | 48 | 224% | ||||
| 1994 | 0 | 0 | 0 | 0% | 1994 | 0 | 0 | 0 | 0% | ||||
| 1993 | 3.6 | 8.1 | 44 | 240% | 1993 | 2.9 | 5 | 54 | 69% | ||||
| 1992 | 7.0 | 15 | 45 | 467% | 1992 | 0 | 0 | 0 | 0% | ||||
| 1991 | 0 | 0 | 0 | 0% | 1991 | 8.1 | 19 | 42 | 193% | ||||
| 1990 | 0 | 0 | 0 | 0% | 1990 | 0.0 | 0 | 0 | 0% | ||||
| 1989 | 0.0 | 0.0 | 0.0 | 0% | 1989 | 0.0 | 0 | 0 | 0% | ||||
| 1988 | 0.0 | 0.0 | 0.0 | 0% | 1988 | 0.0 | 0 | 0 | 0% | ||||
| 1984 | 2.7 | 5.0 | 53.0 | 180% | 1984 | 7.4 | 18 | 53 | 176% | ||||
| average | 1.5 | 1983 | 24.3 | 54 | 45 | 579% | |||||||
| 1977 | 0 | 0 | 0 | 0% | |||||||||
| average | 4.2 | ||||||||||||
| Narrative: | |||||||||||||
| Three snowcourses had snow on them this month which is below normal. Runoff up to | |||||||||||||
| this point has been higher than last years values for the streams that have peaked but still below normal. | |||||||||||||
| May has turned out to be another dry month with only .48" of precip. With the normal being 2". This dryness | |||||||||||||
| during peak runoff equates to more snowpack water going to satisfy soil moisture requirements rather than | |||||||||||||
| overland flows. Streams are showing a lower than expected runoff due to this major factor even though snowpacks | |||||||||||||
| were close to normal. | |||||||||||||
| Dan Schenck / Hydrologist - SLC Public Utilities | |||||||||||||
| Narrative: | |||||||||||||