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.


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data