Salt Lake City Public Utilities				Hydrology department
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				Snow Survey for February  1st
				by Dan Schenck & Larry Alserda
				Little Cottonwood Watershed
		Alta Central snow course						Snowbird Snotel site
	19	years of record		elevation 8800'				26	years of record		elevation 9160'
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	24.1	82	29	99.2%	29-Jan		2002	26.2	92	29	115%	29-Jan
2001	16.7	58	29	68.7%			2001	15.6	59	26	68%
2000	19.6	65	30	80.7%			2000	21	71	30	92%
1999	19.4	73	27	79.8%			1999	18.8	79	24	82%
1998	24.3	80	30	100.0%			1998	21.5	72	30	94%
1997	37.9	111	34	156.0%			1997	36.5	123	30	160%
1996	25.6	99	26	105.3%			1996	28.2	107	26	124%
1995	34.7	88	36	142.8%			1995	33	105	32	145%
1994	15.4	49	31	63.4%			1994	13.4	46	29	59%
1993	30.6	88	35	125.9%			1992	16.0	45	36	70%
1992	18.4	51	36	75.7%			1991	17.4	61	29	76%
1991	21.6	69	31	88.9%			1990	22.7	71	32	100%
1990	21.5	72	30	88.5%			1989	27.0	79	34	118%
1989	26.5	66	40	109.1%			1988	13.0	45	29	57%
1988	16.1	56	29	66.3%			1984	34.6	92	38	152%
1984	43.3	104	42	178.2%			1983	31.0	82	38	136%
average	24.3						1977	5.1	24	21	22%
							average	22.8
Little Cottonwood Snowpack % of normal				107.0%
					Parleys Watershed
	Parleys Summit snow course							Lambs snow course
	69	years of record		elevation 7700'				31	years of record		elevation 7600'
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	12.7	44	29	109%	31-Jan		2002	10.9	39	27	100%	31-Jan
2001	8.8	36	24	76%			2001	9.1	35	26	83%
2000	9.4	36	27	81%			2000	9.6	37	29	88%
1999	11.9	50	24	103%			1999	10.8	48	23	99%
1998	12.7	45	28	109%			1998	11	43	26	101%
1997	18.4	66	28	159%			1997	17.6	63	28	161%
1996	16.3	71	23	141%			1996	14.1	66	21	129%
1995	15.3	47	33	132%			1995	12.8	40	32	117%
1994	8.3	34	25	72%			1994	7.8	33	24	72%
1993	17.2	54	31	148%			1993	13.9	46	30	128%
1992	7.6	29	26	66%			1992	5.4	24	22	50%
1991	10.7	35	24	92%			1991	9.6	38	25	88%
1990	8.2	36	23	71%			1990	8.6	37	23	79%
1989	14.4	46	31	124%			1989	13.4	42	32	123%
1988	9.1	34	27	78%			1988	8.8	33	27	81%
1984	20.4	62	33	176%			1984	18.1	54	33	166%
1983	9.8	42	23	84%			1983	10.2	42	24	94%
1977	2.8	14	19	24%			1977	2.6	15	17	24%
1952	N/A			N/R			average	10.9
average	11.6
	Parleys Snowpack % of Normal			104.7%
		Emigration Watershed						Millcreek Watershed
	Killyon snow course							Millcreek snow course
	17	years of record		elevation 6300'				29	years of record		elevation 7000'
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	8.4	29	29	122%	29-Jan		2002	14.7	49	30	117%	31-Jan
2001	5	21	24	72%			2001	11.1	42	26	88%
2000	4.3	13	32	62%			2000	10.7	37	29	85%
1999	6.4	29	22	93%			1999	12.9	54	24	102%
1998	7.5	27	28	109%			1998	13	47	28	103%
1997	7.6	26	29	110%			1997	19.3	67	29	153%
1996	8.5	41	21	123%			1996	13.5	61	22	107%
1995	7.9	27	30	114%			1995	16.7	48	35	133%
1994	5.5	22	25	80%			1994	9.8	36	27	78%
1993	10.1	35	29	146%			1993	16.9	54	31	134%
1992	4.2	15	28	61%			1992	8.1	29	28	64%
1991	7.6	27	28	110%			1991	11.0	42	26	87%
1990	4.4	20	22	64%			1990	11.1	38	29	88%
1989	10.0	40	25	145%			1988	9.1	32	28	72%
1988	5.8	24	24	84%			1984	18.9	60	32	150%
1987	5.7	18	31	83%			1983	11.3	42	27	90%
1986	8.7	26	33	126%			1977	3.1	15	20	25%
average	6.9						average	12.6
			Snow Survey report  February  first          Page   2
	City Creek Watershed								Big Cottonwood Watershed
	Hidden Springs snow course							Brighton Cabin snow course
	21	years of record		elevation 5500'				81	years of record		elevation 8700'
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	6.8	24	28	121%	30-Jan			2002	18.2	61	30	107.1%	1-Feb
2001	5	20	25	89%				2001	13.3	50	27	78.2%
2000	2.4	10	24	43%				2000	13.6	49	28	80.0%
1999	4.4	20	22	79%				1999	15.2	64	24	89.4%
1998	6.1	20	30	109%				1998	18.5	63	29	108.8%
1997	3	10	32	54%				1997	27.8	92	30	163.5%
1996	7.4	33	23	132%				1996	20.4	87	23	120.0%
1995	6.1	17	37	109%				1995	21.3	67	32	125.3%
1994	4	14	28	71%				1994	10.5	40	26	61.8%
1993	9.5	31	31	170%				1993	22.7	71	32	133.5%
1992	3.4	13	26	61%				1992	10.4	37	28	61.2%
1991	5.2	20	26	93%				1989	18.3	52	35	107.6%
1990	2.9	9	31	52%				1988	11.1	50	22	65.3%
1989	7.9	24	33	141%				1984	25.2	69	36	148.2%
1988	4.1	14	30	73%				1983	20.4	71	29	120.0%
1984	11.5	37	31	205%				1977	4.2	23	19	24.7%
1983	6.9	23	30	123%				1952	25.6
average	5.6							average	17.0
	Louis Meadow snow course								Silver Lake snow course
	26	years of record		elevation 6700'					68	years of record		elevation 8700'
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	15	50	30	113%	30-Jan			2002	15.8	54	29	101.3%	1-Feb
2001	11.2	41	27	84%				2001	12.8	46	28	82.1%
2000	11.3	37	31	85%				2000	11.8	43	27	75.6%
1999	12.8	53	24	96%				1999	14.6	57	26	93.6%
1998	15.3	52	30	115%				1998	17.2	58	30	110.3%
1997	20	65	31	150%				1997	32.8	86	38	210.3%
1996	16.6	68	24	125%				1996	19	78	24	121.8%
1995	18.4	52	35	138%				1995	20.4	65	32	130.8%
1994	9.9	39	25	74%				1994	9.8	35	28	62.8%
1993	18.8	60	31	141%				1993	18.6	60	31	119.2%
1992	7.6	30	26	57%				1992	9.1	32	28	58.3%
1991	10.6	38	28	80%				1991	13.3	42	31	85.3%
1990	11.1	40	28	83%				1989	15.8	47	34	101.3%
1989	15.0	46	33	113%				1988	9.6	34	29	61.5%
1988	9.1	36	25	68%				1984	24.3	64	38	155.8%
1987	10.7	40	27	80%				1983	16.8	53	31	107.7%
1986	15.6	49	32	117%				1977	2.7	14	20	17.3%
1985	17.3	65	27	130%				1952	23.8	80	30	152.6%
average	13.3							average	15.6
	City Creek Lakes snow course								Mill D snow course
	20	years of record		elevation 7550'					68	years of record		elevation 7400'
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	18.5	58	32	103%	30-Jan			2002	14.9	46	29	119.2%	4-Feb
2001	14.9	49	30	83%				2001	9.2	37	25	73.6%
2000	15.2	49	31	84%				2000	10.6	37	28	84.8%
1999	14.6	61	24	81%				1999	11.5	50	23	92.0%
1998	19.4	64	30	108%				1998	12.6	52	24	100.8%
1997	28.7	92	31	159%				1997	20.3	68	30	162.4%
1996	21.4	88	24	119%				1996	16.6	72	23	132.8%
1995	22.2	65	34	123%				1995	15.5	52	30	124.0%
1994	11.3	42	27	63%				1994	9.9	36	27	79.2%
1993	21.7	69	31	121%				1993	14.8	50	30	118.4%
1992	10.1	34	30	56%				1992	6.6	27	24	52.8%
1991	14.4	47	30	80%				1988	9.0	32	29	72.0%
1990	14.6	50.0	29.0	81%				1984	20.2	57	36	161.6%
1989	19.9	56.0	36.0	111%				1983	12.6	43	29	100.8%
1988	11.3	43	26	63%				1977	2.7	10	26	21.6%
1984	32.5	82.4	39	181%				1952	N/A			N/R
average	18.0							average	12.5
	City Creek Snowpack % of Normal			112.3%				Big Cottonwood Snowpack % of Normal				109.2%
					Entire Snowpack percent of normal
			above 7500 feet :			105.0%
			7500 feet and lower :			118.4%
			Total Wasatch Front:			110.5%
Narrative:
We lost 30 % of normal from our Jan. 1 snow survey's to Feb. 1, which is not too bad considering
at mid month we were in the 80's and 90's as a percent of normal.  The low elevation watershed's
continue to lead the way due to the extreme cold weather that has made snows from the valley floor
to low and mid elevation watersheds very heavy and frequent.  The densities in the snow pack
have dropped from last month which is very rare.  This shows how the storms in January were very
cold in natural and thusly low in density.  Some of our low elevation snow courses have more
snow now than they did all last season.  This is good for soil saturation but the low elevation areas
generally runoff too early in the season to help in the late summer water demand.  Trends for the next
month look like more of the long dry spells followed by many days of heavy storms.
Dan Schenck / Hydrologist - SLC Dept. of Public Utilities