Station list     Available data
ILLINOIS RIVER BASIN


05535000       SKOKIE RIVER AT LAKE FOREST, IL

 

LOCATION.-- Lat 42°13'57", long 87°50'41" (NAD of 1927), in NW1/4SW1/4 sec.4, T.43 N., R.12 E., Lake County, Hydrologic Unit 07120003, on right bank at upstream 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 1994-2002.
 

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

GAGE.-- Water-stage recorder and phone telemeter. Datum of gage is 648.75 ft above NGVD of 1929.
 

EXTREMES FOR PERIOD OF RECORD.--

SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 580 ft3/s, Oct. 13, 2001, gage height, 7.78 ft; maximum gage height, 8.35 ft, July 22, 1982; no flow many days in 1959.
 

REMARKS FOR CURRENT YEAR.-- Records good except those for estimated daily discharges, which are poor.
DISCHARGE, in CFS, WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 12    16    16    e2.0 13    7.7 9.9 7.9 2.6 1.1   1.2   1.00
2 11    15    12    e1.9 11    11    14    23    2.4 0.94 0.51 41     
3 9.9 14    9.9 e1.7 8.5 13    10    10    21    0.75 0.43 22     
4 13    14    10    e1.6 9.1 12    8.0 7.3 177    0.62 0.53 11     
5 20    13    5.7 e1.6 9.3 9.4 7.3 6.5 112    0.55 0.92 6.2  
 
6 10    13    4.5 e1.7 5.3 10    5.6 6.6 48    0.55 0.63 3.2  
7 8.9 13    4.0 e1.8 6.2 14    10    5.8 29    0.65 0.60 1.7  
8 5.3 11    3.3 e1.9 8.6 59    49    6.5 21    0.59 0.55 1.2  
9 3.4 11    2.7 e1.8 12    62    88    18    18    19      0.46 1.0  
10 6.1 11    2.5 e1.7 25    33    42    10    17    3.9   0.45 0.95
 
11 8.4 9.5 2.3 e1.7 20    25    29    39    25    1.8   0.39 0.86
12 46    8.6 4.2 e1.9 17    21    23    153    15    1.3   0.38 2.2  
13 236    9.1 22    e2.4 15    19    20    53    12    1.00 45      0.55
14 297    8.0 13    e3.0 10    16    e17    33    12    0.84 29      0.47
15 105    7.2 11    4.1 10    13    e14    25    12    0.73 13      0.41
 
16 50    6.4 9.7 5.3 9.9 10    e12    40    7.1 0.75 8.1   0.42
17 30    5.6 11    6.6 8.5 8.6 e10    34    3.9 0.63 5.3   0.42
18 22    3.8 6.8 6.4 7.8 6.4 e8.2 23    3.5 0.63 2.5   5.6  
19 19    3.5 10    3.2 17    4.8 7.0 18    2.3 0.68 4.5   6.5  
20 17    2.1 7.4 3.0 36    4.9 6.3 13    1.8 0.65 3.5   11     
 
21 16    1.9 5.6 2.9 34    4.3 7.7 9.9 1.6 0.63 11      6.6  
22 20    1.6 6.2 3.0 24    3.7 8.1 6.0 1.4 0.69 188      8.8  
23 261    1.4 6.3 4.2 19    3.3 6.1 5.9 1.2 0.59 63      4.0  
24 180    5.8 4.6 4.4 16    3.1 6.0 6.6 1.0 0.58 32      1.9  
25 99    10    e3.3 3.9 14    2.6 6.8 7.8 1.1 0.64 21      0.99
 
26 49    5.8 2.7 3.7 12    4.0 4.8 5.9 5.3 0.98 15      0.81
27 30    6.7 2.5 3.9 11    2.3 9.3 4.6 5.4 1.6   9.4   0.75
28 23    3.3 2.1 4.5 9.2 2.4 15    4.1 2.9 1.00 7.9   0.61
29 20    9.3 1.9 4.7 ---    17    12    3.7 1.6 1.1   5.2   28     
30 19    30    1.7 4.3 ---    16    8.0 3.2 1.3 0.74 2.4   11     
 
31 18    ---    e1.9 6.1 ---    11    ---    2.9 ---    0.58 1.2   ---     

TOTAL 1665.0 270.6 206.8 100.9 398.4 429.5 474.1 593.2 565.4 46.79 474.05 181.14
MEAN 53.71 9.020 6.671 3.255 14.23 13.85 15.80 19.14 18.85 1.509 15.29 6.038
MAX 297 30 22 6.6 36 62 88 153 177 19 188 41
MIN 3.4 1.4 1.7 1.6 5.3 2.3 4.8 2.9 1.0 0.55 0.38 0.41
CFSM 4.13 0.69 0.51 0.25 1.09 1.07 1.22 1.47 1.45 0.12 1.18 0.46
IN. 4.76 0.77 0.59 0.29 1.14 1.23 1.36 1.70 1.62 0.13 1.36 0.52
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1952 - 2002, BY WATER YEAR (WY)
MEAN 8.023 10.37 10.78 9.719 13.75 22.38 24.71 15.51 12.62 8.222 7.365 8.466
MAX 53.7 44.5 53.7 42.4 35.5 82.3 56.9 54.3 41.6 33.3 41.7 61.7
(WY) 2002 1986 1983 1974 1997 1979 1983 1996 1996 1993 1972 1986
MIN 0.83 0.73 1.20 0.29 1.08 4.01 5.95 2.26 0.91 1.29 1.26 1.12
(WY) 1957 2000 1959 1959 1963 1956 1986 1988 1988 1991 1955 1979

SUMMARY STATISTICS FOR 2001 CALENDAR YEAR FOR 2002 WATER YEAR WATER YEARS 1952 - 2002
ANNUAL TOTAL 6486.25 5405.88
ANNUAL MEAN 17.77 14.81 12.64    
HIGHEST ANNUAL MEAN 22.2       1974
LOWEST ANNUAL MEAN 3.54     1963
HIGHEST DAILY MEAN 297          Oct 14 297          Oct 14 444          Sep 27 1986
LOWEST DAILY MEAN 0.13     Jul 6 0.38     Aug 12 0.00     A
ANNUAL SEVEN-DAY MINIMUM 0.29     Jun 30 0.49     Aug 6 0.00     Jan 3 1959
MAXIMUM PEAK FLOW 580          Oct 13 580      B Oct 13 2001
MAXIMUM PEAK STAGE 7.78     Oct 13 8.35     Jul 22 1982
INSTANTANEOUS LOW FLOW 0.32     C
ANNUAL RUNOFF (CFSM) 1.37 1.14 0.97    
ANNUAL RUNOFF (INCHES) 18.56 15.47 13.21    
10 PERCENT EXCEEDS 36      29      28         
50 PERCENT EXCEEDS 8.2   6.6   5.3      
90 PERCENT EXCEEDS 0.74 0.79 1.4      

A - Many days in 1959.

B - Gage height, 7.78 ft.

C - Aug. 11, 12, Sept. 15, 17.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data