03612000 DATA: Discharge Tables, 1999

Station list Available data
CACHE RIVER BASIN

03612000 CACHE RIVER AT FORMAN, IL

LOCATION.--Lat 37°20'11", long 88°55'26", in NE1/4NW1/4 sec.6, T.14 S., R.3 E., Johnson County, Hydrologic Unit 05140206, at downstream side of bridge on County Highway 3, 1.2 mi southwest of Forman, and at mile 8.1.

DRAINAGE AREA.--244 mi².

PERIOD OF RECORD.--October 1922 to July 1924, September 1924 to current year.

REVISED RECORDS.--WSP 623: 1923-24. WSP 823: 1934-35. WSP 1205: 1923-24, 1927-30. WSP 1335: 1923(M), 1925, 1926-27(M), 1928, 1929-30(M), 1931, 1933, 1934-36(M), 1937-39. WDR IL-75-1: Drainage area.

GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 308.47 ft above sea level. Dec. 30, 1971 to Sept. 30, 1997, recording gage at same site at datum 10.0 ft. higher. Oct. 1, 1958, to Dec. 30, 1971, nonrecording gage at same site and datum 10.0 ft. higher. See WSP 1705 or 1725 for history of changes prior to Sept. 30, 1958.

REMARKS.--Records fair except those for periods of backwater from the Ohio River, Jan. 13 to Feb. 21, Mar. 6-26, and Apr. 23 to May 15, and those for estimated daily discharges, which are poor. Flow of lower part of Cache River Basin was diverted from Ohio River to Mississippi River beginning Oct. 31, 1950, through diversion channel of Mounds-Mound City flood-protection project. Flow of upper part of Cache River Basin, including flow past this station, continued to discharge to Ohio River, passing through Post Creek cutoff directly to Ohio River instead of through the original channel of Cache River. Gage-height telemeter at station.

DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	3.6	3.1	16	e70	e1510	272	112	e202	24	122	4.9	e.94
2	2.9	3.0	15	e700	e1020	193	116	e128	591	53	4.2	e.88
3	2.4	3.0	14	1000	e782	141	777	e92	603	37	3.9	.82
4	2.1	2.4	15	558	e750	113	1980	e74	576	30	3.9	.75
5	2.2	3.9	25	e500	e602	97	1330	e440	559	26	3.8	.68

6	5.2	4.5	34	e550	e463	e459	2510	e937	361	24	3.4	.67
7	85	3.6	33	e450	e729	e582	2580	e436	416	21	3.1	.61
8	157	4.0	132	e300	e588	e468	2210	e592	148	18	3.5	.57
9	91	5.7	124	e220	e483	e1320	1800	e511	100	15	3.5	.48
10	41	9.5	69	e170	e349	e899	1270	e275	77	17	3.4	.46

11	24	32	48	e120	e226	e650	868	e160	62	25	3.0	.41
12	15	19	38	e160	e582	e524	617	e117	59	40	2.8	.39
13	10	41	32	e264	e446	e319	412	e100	52	34	2.4	.36
14	8.1	30	28	e506	e271	e295	320	e92	48	25	2.1	.36
15	7.9	21	24	e413	e170	e390	1410	e90	46	19	2.1	.26

16	6.1	15	21	e230	e137	e602	1000	80	53	15	2.3	.26
17	4.7	13	19	e253	e127	e692	820	68	44	13	2.3	.22
18	6.1	11	16	e673	e120	e603	758	62	35	12	2.3	.33
19	18	9.9	15	e570	e110	e577	578	64	30	12	2.2	.42
20	13	46	15	e413	e101	e577	378	65	219	22	2.1	.53

21	14	59	204	e238	e90	e460	267	55	124	122	e2.0	.60
22	15	76	e1000	e2140	86	e295	195	48	76	37	e1.9	.72
23	12	55	e800	e2830	81	e260	e143	41	61	34	e1.8	.57
24	9.6	39	587	e4130	92	e324	e112	36	56	20	e1.7	.56
25	7.6	30	457	e3820	106	e279	e92	33	50	12	e1.6	.61

26	6.6	26	182	e2580	112	e200	e80	30	44	10	e1.5	.53
27	5.9	22	130	e1560	107	166	e83	28	85	8.7	e1.4	.85
28	5.1	19	e94	e816	248	137	e188	26	56	7.9	e1.3	1.3
29	4.6	19	e75	e499	---	122	e531	24	44	6.7	e1.2	1.6
30	3.8	18	e66	e360	---	109	e335	22	37	6.0	e1.1	1.2

31	3.4	---	e58	e1290	---	101	---	22	---	5.4	e1.0	---

TOTAL	592.9	643.6	4386	28383	10488	12226	23872	4950	4736	849.7	77.7	18.94
MEAN	19.1	21.5	141	916	375	394	796	160	158	27.4	2.51	.63
MAX	157	76	1000	4130	1510	1320	2580	937	603	122	4.9	1.6
MIN	2.1	2.4	14	70	81	97	80	22	24	5.4	1.0	.22
CFSM	.08	.09	.58	3.75	1.54	1.62	3.26	.65	.65	.11	.01	.00
IN.	.09	.10	.67	4.33	1.60	1.86	3.64	.75	.72	.13	.01	.00

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1923 - 1999, BY WATER YEAR (WY)
MEAN	54.2	193	324	499	492	600	581	416	214	89.5	73.9	57.1
MAX	487	1097	2192	3039	1813	2268	2244	1847	1759	1257	826	542
(WY)	1928	1958	1983	1950	1950	1945	1927	1983	1928	1958	1985	1950
MIN	.019	.66	.58	1.38	7.05	12.4	40.7	10.4	1.37	1.71	.000	.43
(WY)	1964	1954	1964	1977	1934	1941	1981	1930	1936	1931	1930	1953

SUMMARY STATISTICS	FOR 1998 CALENDAR YEAR		FOR 1999 WATER YEAR		WATER YEARS 1923 - 1999
ANNUAL TOTAL	81146.3		91223.84
ANNUAL MEAN	222		250		297
HIGHEST ANNUAL MEAN					779	1950
LOWEST ANNUAL MEAN					37.5	1941
HIGHEST DAILY MEAN	2130	Mar 20	4130 A	Jan 24	8780	Jan 26 1929
LOWEST DAILY MEAN	2.1	Sep 15,Oct.4	.22	Sep 17	.00	B
ANNUAL SEVEN-DAY MINIMUM	2.5	Sep 9	.31	Sep 12	.00	Jul 29 1930
INSTANTANEOUS PEAK FLOW			4540 A	Jan 24	9630	Mar 12 1935
INSTANTANEOUS PEAK STAGE			30.44	Jan 24	42.29 C	Mar 12 1935
INSTANTANEOUS LOW FLOW			.17	Sep 17
ANNUAL RUNOFF (CFSM)	.91		1.02		1.22
ANNUAL RUNOFF (INCHES)	12.37		13.91		16.53
10 PERCENT EXCEEDS	728		630		851
50 PERCENT EXCEEDS	55		53		55
90 PERCENT EXCEEDS	4.6		1.6		1.8

A - Variable backwater.
B - At times in some years.
C - Site then in use, from graph based on gage readings.