03612000 DATA: Discharge Tables, 1998

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 good except those for periods of backwater from the Ohio River, Mar. 26-29, Apr. 17 to May 18, 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 1997 TO SEPTEMBER 1998 DAILY MEAN VALUES
DAY	OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP

1	3.7	5.7	e250	30	55	756	237	e896	19	644	176	6.0
2	2.5	4.4	e150	27	50	699	323	e638	17	618	72	5.4
3	2.4	4.1	90	24	46	500	242	e900	14	635	41	4.9
4	2.7	3.6	54	22	43	324	269	e720	14	551	28	4.4
5	2.6	3.6	39	26	40	228	260	e598	23	308	21	3.9

6	2.4	4.2	31	333	40	176	198	e507	40	167	94	3.7
7	2.1	4.0	26	968	40	147	166	e1600	54	108	611	3.5
8	1.9	7.9	21	1250	39	144	153	e1000	36	79	1230	3.1
9	2.2	17	18	808	39	159	142	e750	712	63	925	2.7
10	1.8	18	16	673	38	166	126	e554	608	52	600	2.6

11	1.4	14	18	420	41	148	106	e376	391	44	376	2.6
12	1.2	9.9	17	194	129	119	92	e224	313	39	139	2.5
13	1.9	8.3	23	138	221	103	87	e158	416	35	101	2.4
14	2.2	7.7	22	110	144	95	998	e117	267	39	75	2.3
15	1.8	11	19	161	101	90	537	e95	590	34	52	2.1

16	1.8	7.7	16	162	311	95	1630	e75	593	35	39	2.7
17	1.7	8.2	14	129	1430	338	e1240	e60	592	31	28	2.7
18	2.8	13	12	99	1950	1570	e713	e50	512	28	22	2.9
19	3.6	11	10	82	1300	1270	e634	44	376	25	22	2.8
20	3.3	9.2	9.9	70	1110	2130	e823	38	202	20	20	2.9

21	3.2	7.8	10	63	1140	1670	e439	34	195	16	17	3.8
22	2.6	6.8	12	60	995	1290	e234	43	280	13	16	3.6
23	2.3	6.1	19	118	765	1250	e149	45	235	11	14	2.7
24	12	5.9	51	163	564	1070	e128	53	122	9.9	12	30
25	23	5.9	211	137	399	806	e120	44	81	8.6	9.6	22

26	12	5.2	222	100	301	e563	e115	43	60	8.5	8.8	13
27	5.8	4.6	109	82	1250	e399	e110	59	49	8.7	8.0	9.9
28	6.9	4.4	63	73	897	e306	e110	46	40	11	7.3	7.4
29	7.5	4.3	47	68	---	e266	e150	36	34	11	6.8	5.5
30	8.2	e10	37	62	---	241	e1240	31	740	14	6.7	4.5

31	6.7	---	33	58	---	196	---	24	---	148	6.4	---

TOTAL	136.2	233.5	1669.9	6710	13478	17314	11771	9858	7625	3814.7	4784.6	168.5
MEAN	4.39	7.78	53.9	216	481	559	392	318	254	123	154	5.62
MAX	23	18	250	1250	1950	2130	1630	1600	740	644	1230	30
MIN	1.2	3.6	9.9	22	38	90	87	24	14	8.5	6.4	2.1
CFSM	.02	.03	.22	.89	1.97	2.29	1.61	1.30	1.04	.50	.63	.02
IN.	.02	.04	.25	1.02	2.05	2.64	1.79	1.50	1.16	.58	.73	.03

e Estimated

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1923 - 1998, BY WATER YEAR (WY)
MEAN	54.6	195	326	494	494	603	578	419	215	90.3	74.8	57.8
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	12.5	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 1997 CALENDAR YEAR		FOR 1998 WATER YEAR		WATER YEARS 1923 - 1998
ANNUAL TOTAL	112445.1		77563.4
ANNUAL MEAN	308		213		298
HIGHEST ANNUAL MEAN					779	1950
LOWEST ANNUAL MEAN					37.6	1941
HIGHEST DAILY MEAN	4320	Jun 3	2130	Mar 20	8780	Jan 26 1929
LOWEST DAILY MEAN	1.2	Oct 12	1.2	Oct 12	.00	A
ANNUAL SEVEN-DAY MINIMUM	1.7	Oct 11	1.7	Oct 11	.00	Jul 29 1930
INSTANTANEOUS PEAK FLOW			2200	Mar 20	9630	Mar 12 1935
INSTANTANEOUS PEAK STAGE			22.49	Mar 20	17.99 B	Mar 12 1935
INSTANTANEOUS LOW FLOW			1.0	Oct 12
ANNUAL RUNOFF (CFSM)	1.26		.87		1.22
ANNUAL RUNOFF (INCHES)	17.14		11.83		16.57
10 PERCENT EXCEEDS	880		712		857
50 PERCENT EXCEEDS	65		45		55
90 PERCENT EXCEEDS	3.5		3.6		1.8

A - At times in some years.
B - Site and datum then in use, from graph based on gage readings.