GREEN RIVER BASIN

09260000 LITTLE SNAKE RIVER NEAR LILY, CO

LOCATION.--Lat 40°32'50", long 108°25'25", in NW14NE14 sec.20, T.7 N., R.98 W., Moffat County, Hydrologic Unit 14050003, on left bank 170 ft downstream from highway bridge, 6.0 mi north of Lily, and 10 mi upstream from mouth.

DRAINAGE AREA.--3,730 mi2, approximately.

PERIOD OF RECORD.--June to August 1904 (published as "near Maybell"), October 1921 to current year. Monthly discharge only for some periods, published in WSP 1313. For a complete listing of historical data available for this site, see http://waterdata.usgs.gov/co/nwis/inventory/?site_no=09260000

REVISED RECORDS.--WSP 1713: 1959.

GAGE.--Water-stage recorder with satellite telemetry. Elevation of gage is 5,685 ft above NGVD of 1929, from river-profile map. June 9 to Aug. 14, 1904, nonrecording gage, and May 5, 1922 to Nov. 30, 1935, water-stage recorder, at site 300 ft upstream at different datums.

REMARKS.--Records good except for estimated daily discharges, which are poor. Diversions for irrigation of about 21,000 acres upstream from station.

Discharge, cubic feet per second 

WATER YEAR OCTOBER 2002 TO SEPTEMBER 2003

DAILY MEAN VALUES

DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP
1	0.22	57	e60	e60	e91	188	e250	1,380	3,820	246	5.1	0.43
2	12	73	e60	e60	e102	207	e300	1,280	3,700	215	8.2	0.10
3	45	47	e50	e60	e111	172	383	974	3,790	180	1.9	0.03
4	9.5	55	e60	e40	e111	157	567	801	2,780	143	2.0	0.00
5	14	49	e55	e50	e108	164	575	829	2,170	130	1.1	0.02
6	40	83	e65	e50	e106	168	470	926	1,800	117	0.17	0.09
7	30	72	e60	e55	e95	168	398	864	1,510	101	1.1	0.06
8	56	65	e55	e55	e88	202	340	743	1,350	104	2.1	0.21
9	53	76	e40	e55	e75	216	304	722	1,180	92	1.5	0.58
10	52	66	e30	e64	e66	185	269	823	1,040	78	0.29	2.9
11	45	58	e40	e64	e73	300	249	1,040	1,020	72	0.00	2.6
12	42	60	e40	e66	e83	422	308	794	1,060	73	0.00	7.2
13	40	87	e40	e62	e82	476	507	655	1,130	69	0.26	5.1
14	41	73	e50	e75	e81	516	717	565	1,030	58	0.21	4.2
15	38	72	e50	e77	e84	563	866	775	957	37	0.00	4.5
16	42	63	e45	e68	e85	792	1,200	1,100	905	25	0.24	3.8
17	45	66	e45	e62	e111	933	1,200	1,590	828	27	1.4	2.8
18	38	76	e50	e77	e133	826	923	1,890	761	19	3.6	2.5
19	34	63	e45	e95	e180	602	879	2,210	688	18	4.8	2.4
20	36	73	e40	e106	e168	423	892	2,390	625	26	3.2	4.8
21	38	83	e40	e104	e174	289	714	2,130	553	10	2.4	3.6
22	39	97	e50	e95	e167	231	671	1,880	544	9.0	1.8	3.3
23	45	84	e40	e86	e173	320	759	1,890	541	9.7	1.4	2.9
24	50	89	e40	e79	e144	423	917	1,980	478	19	0.89	1.7
25	46	65	e50	e95	e93	427	999	2,330	472	16	1.9	1.5
26	45	51	e60	e113	e114	583	899	2,640	411	7.8	1.9	0.51
27	52	e56	e50	e124	e144	416	1,310	2,660	389	16	3.0	0.42
28	58	e50	e40	e131	e186	340	1,440	2,790	359	4.3	3.1	0.31
29	59	e60	e50	e131	---	328	1,300	3,100	309	3.3	1.4	0.43
30	53	e50	e50	e122	---	284	1,290	3,290	280	4.1	0.88	0.28
31	62	---	e50	e108	---	230	---	3,430	---	5.6	0.57	---
TOTAL	1,259.72	2,019	1,500	2,489	3,228	11,551	21,896	50,471	36,480	1,934.8	56.41	59.27
MEAN	40.6	67.3	48.4	80.3	115	373	730	1,628	1,216	62.4	1.82	1.98
MAX	62	97	65	131	186	933	1,440	3,430	3,820	246	8.2	7.2
MIN	0.22	47	30	40	66	157	249	565	280	3.3	0.00	0.00
AC-FT	2,500	4,000	2,980	4,940	6,400	22,910	43,430	100,100	72,360	3,840	112	118
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1922 - 2003, BY WATER YEAR (WY)
MEAN	114	121	98.3	91.9	124	380	1,062	2,548	1,859	296	68.4	54.7
MAX	385	363	244	227	595	1,260	3,259	5,967	4,601	1,395	534	314
(WY)	(1926)	(1928)	(1928)	(1999)	(1986)	(1962)	(1952)	(1984)	(1983)	(1995)	(1941)	(1965)
MIN	0.000	0.000	25.0	16.0	18.0	80.5	320	477	36.7	0.29	0.000	0.000
(WY)	(1935)	(1935)	(1931)	(1933)	(1933)	(1964)	(1961)	(1934)	(1934)	(1934)	(1924)	(1934)

SUMMARY STATISTICS	FOR 2002 CALENDAR YEAR	FOR 2003 WATER YEAR	WATER YEARS 1922 - 2003
ANNUAL TOTAL	56,345.75	132,944.20
ANNUAL MEAN	154	364	569
HIGHEST ANNUAL MEAN			1,252 1984
LOWEST ANNUAL MEAN			110 1934
HIGHEST DAILY MEAN	1,000 Apr 18	3,820 Jun 1	13,400 May 18, 1984
LOWEST DAILY MEAN	0.00 Jul 7	0.00 Aug 11	a0.00 Jul 30, 1924
ANNUAL SEVEN-DAY MINIMUM	0.00 Jul 28	0.07 Sep 2	0.00 Jul 30, 1924
MAXIMUM PEAK FLOW		4,380 Jun 1	16,700 May 18, 1984
MAXIMUM PEAK STAGE		5.91 Jun 1	b9.85 May 18, 1984
ANNUAL RUNOFF (AC-FT)	111,800	263,700	412,400
10 PERCENT EXCEEDS	530	1,040	1,920
50 PERCENT EXCEEDS	63	73	128
90 PERCENT EXCEEDS	0.00	1.9	12

e Estimated. a No flow at times some years. b Maximum gage height, 11.10 ft, Feb 13, 1962, backwater from ice.