05535000 DATA: Discharge Tables, 2000

Station list Available data
ILLINOIS RIVER BASIN

05535000 SKOKIE RIVER AT LAKE FOREST, IL

LOCATION.-- Lat 42°13'57", long 87°50'41", in NW1/4SW1/4 sec.4, T.43 N., R.12 E., Lake County, Hydrologic Unit 07120003, on left bank at downstream side of bridge on Westleigh Road at Lake Forest and at mile 13.1.

DRAINAGE AREA.-- 13.0 mi².

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE

DISCHARGE: October 1951 to current year. Prior to October 1952, records published with those for streams in the St. Lawrence River Basin (WSP 1237).

STAGE: Water years 1994-2000.

REVISED RECORDS.-- WDR IL-75-1: Drainage area.

GAGE.-- Water-stage recorder, phone telemeter, and crest-stage gage. Datum of gage is 648.75 ft above sea level.

REMARKS FOR CURRENT YEAR.-- Records good except those for August 4 to September 30, which are fair, and those for estimated daily discharges, which are poor.

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	13	.61	e.66	1.8	e1.4	7.1	1.4	15	35	14	18	1.6
2	12	.56	e.84	2.7	e1.4	4.9	1.6	12	26	26	14	1.1
3	29	.53	1.9	3.2	e1.4	3.4	1.4	11	18	162	11	.91
4	20	.50	3.1	6.1	e1.4	3.1	1.2	9.9	15	58	e9.0	1.0
5	12	.53	41	3.7	e1.4	3.0	1.2	6.1	51	31	6.9	.65

6	11	.50	17	2.8	e1.4	2.5	1.1	5.0	29	23	7.8	.53
7	11	.48	14	2.8	e1.4	2.4	7.3	4.6	19	19	6.0	.67
8	9.8	.48	12	2.5	e1.5	2.8	19	4.5	13	16	5.2	2.9
9	3.3	.56	9.8	6.7	2.8	5.3	13	26	11	15	4.0	1.9
10	1.3	.54	5.8	8.8	5.2	2.6	10	24	9.8	154	3.7	1.4

11	1.1	.53	4.5	6.8	6.3	2.5	6.3	40	18	75	4.0	42
12	.87	.64	4.0	5.3	5.2	2.9	4.2	30	47	34	16	76
13	1.5	.75	3.6	4.6	4.6	2.8	3.3	16	76	24	30	28
14	1.3	.60	3.6	e3.2	5.1	2.6	2.7	10	54	26	23	39
15	.98	.50	5.7	e2.7	4.6	3.1	2.3	7.2	36	18	9.7	22

16	1.8	.52	6.2	e2.5	5.1	4.9	2.8	8.5	e20	15	4.8	14
17	1.5	.53	4.5	e2.4	5.5	2.9	6.1	8.2	e15	14	27	4.9
18	.93	.67	3.6	e2.2	5.7	2.4	2.9	167	e12	13	24	1.5
19	.87	.60	e3.0	e2.1	12	4.3	30	241	e9.0	13	14	3.4
20	.92	.51	e2.5	e2.0	11	24	163	80	18	12	7.9	16

21	.93	.50	e2.2	e1.9	13	14	160	42	14	11	7.5	10
22	.92	.49	e1.9	e1.8	40	9.0	63	59	11	10	5.5	98
23	.76	2.3	e1.7	e1.7	44	6.7	39	39	8.0	8.3	4.0	219
24	.80	2.0	e1.6	e1.6	64	5.6	29	25	13	5.1	3.7	108
25	.90	.68	e1.6	e1.5	34	4.9	23	20	34	3.7	3.1	59

26	1.6	.56	e1.5	e1.5	23	3.4	20	16	23	3.4	2.8	40
27	1.7	.53	1.7	e1.4	18	3.3	18	27	18	3.3	2.7	29
28	.52	.53	1.5	e1.2	11	3.3	16	52	19	3.2	2.4	19
29	.44	1.3	1.5	e1.4	9.2	2.6	14	33	20	3.7	1.8	13
30	1.2	e1.8	1.9	e1.4	---	2.1	12	24	16	4.8	1.1	8.4

31	.68	---	1.9	e1.4	---	1.8	---	31	---	33	1.3	---

TOTAL	144.62	21.83	166.30	91.7	340.6	146.2	674.8	1094.0	707.8	851.5	281.9	862.86
MEAN	4.67	.73	5.36	2.96	11.7	4.72	22.5	35.3	23.6	27.5	9.09	28.8
MAX	29	2.3	41	8.8	64	24	163	241	76	162	30	219
MIN	.44	.48	.66	1.2	1.4	1.8	1.1	4.5	8.0	3.2	1.1	.53
CFSM	.36	.06	.41	.23	.90	.36	1.73	2.71	1.81	2.11	.70	2.21
IN.	.41	.06	.48	.26	.97	.42	1.93	3.13	2.03	2.44	.81	2.47

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1952 - 2000, BY WATER YEAR (WY)
MEAN	7.07	10.4	11.0	9.85	13.3	22.8	25.1	15.3	12.5	8.43	7.16	8.19
MAX	30.0	44.5	53.7	42.4	35.5	82.3	56.9	54.3	41.6	33.3	41.7	61.7
(WY)	1987	1986	1983	1974	1997	1979	1983	1996	1996	1993	1972	1986
MIN	.83	.73	1.20	.29	1.08	4.01	5.95	2.26	.91	1.29	1.26	1.12
(WY)	1957	2000	1959	1959	1963	1956	1986	1988	1988	1991	1955	1979

SUMMARY STATISTICS	FOR 1999 CALENDAR YEAR		FOR 2000 WATER YEAR		WATER YEARS 1952 - 2000
ANNUAL TOTAL	5648.79		5384.11
ANNUAL MEAN	15.5		14.7		12.6
HIGHEST ANNUAL MEAN					22.2	1974
LOWEST ANNUAL MEAN					3.54	1963
HIGHEST DAILY MEAN	321	Apr 23	241	May 19	444	Sep 27 1986
LOWEST DAILY MEAN	.44	Oct 29	.44	Oct 29	.00	A
ANNUAL SEVEN-DAY MINIMUM	.51	Nov 2	.51	Nov 2	.00	Jan 3 1959
INSTANTANEOUS PEAK FLOW			429	May 18	496 B	Feb 21 1997
INSTANTANEOUS PEAK STAGE			6.74	May 18	8.35	Jul 22 1982
ANNUAL RUNOFF (CFSM)	1.19		1.13		.97
ANNUAL RUNOFF (INCHES)	16.16		15.41		13.14
10 PERCENT EXCEEDS	35		34		28
50 PERCENT EXCEEDS	5.8		4.9		5.3
90 PERCENT EXCEEDS	.64		.86		1.4

A - Many days in 1959.
B - Gage height, 7.24 ft.