PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   FLINT
                                          MONTH:     APRIL
                                          YEAR:      2004
                                          LATITUDE:   42 58 N                   
                                          LONGITUDE:  83 44 W                   

  TEMPERATURE IN F:       :PCPN:    SNOW:  WIND      :SUNSHINE: SKY     :PK WND 
================================================================================
1   2   3   4   5  6A  6B    7    8   9   10  11  12  13   14  15   16   17  18
                                          AVG MX 2MIN
DY MAX MIN AVG DEP HDD CDD  WTR  SNW DPTH SPD SPD DIR MIN PSBL S-S WX    SPD DR
================================================================================

 1  50  35  43   3  22   0    T    T    0 15.2 23  10   M    M   9        30  20
 2  57  37  47   7  18   0 0.00  0.0    0 12.1 20  30   M    M   6        30  10
 3  58  33  46   5  19   0 0.06  0.4    0 12.8 28 310   M    M   4 1      39 310
 4  44  28  36  -5  29   0 0.01  0.2    0 16.8 22 330   M    M   5 1      36  10
 5  45  23  34  -7  31   0 0.00  0.0    0  8.5 15 270   M    M   0        18 270
 6  60  25  43   1  22   0    T  0.0    0  6.4 21 230   M    M   5        25 220
 7  60  37  49   7  16   0 0.00  0.0    0  5.5 13  10   M    M   3 18      M  M 
 8  52  36  44   2  21   0 0.12  0.0    0  8.3 16  60   M    M   8 18     18  10
 9  54  31  43   0  22   0 0.00  0.0    0  7.5 17 310   M    M   4        22 300
10  52  31  42  -1  23   0    T    T    0  6.6 20  80   M    M   4 1      21  80
11  41  33  37  -7  28   0    T    T    0 10.4 13  30   M    M  10 1      16  70
12  51  31  41  -3  24   0    T    T    0 12.4 20  30   M    M   5        25  40
13  51  36  44   0  21   0    T    T    0 12.6 22  20   M    M   6        33  40
14  59  29  44  -1  21   0 0.00  0.0    0  7.5 17  60   M    M   0        21  70
15  67  36  52   7  13   0 0.00  0.0    0  8.8 16 150   M    M   2        21 140
16  79  46  63  17   2   0 0.00    M    0 10.7 16 210   M    M   4        21 220
17  74  57  66  20   0   1 0.02  0.0    0  7.6 13 290   M    M   3 8      17 290
18  87  54  71  25   0   6    T  0.0    0 13.2 23 210   M    M   3 18     50 320
19  77  42  60  13   5   0    T  0.0    0 20.7 38 270   M    M   6 8      51 260
20  55  40  48   1  17   0 0.03  0.0    0  9.8 18 140   M    M   7        24 140
21  77  50  64  16   1   0 0.00  0.0    0 17.7 29 250   M    M   6 138    39 240
22  60  41  51   3  14   0 0.00  0.0    0 10.2 21 300   M    M   4        26 310
23  64  36  50   2  15   0 0.00  0.0    0  7.0 16 280   M    M   1 18     20 270
24  57  36  47  -2  18   0    T  0.0    0  9.3 18  80   M    M   2        22  80
25  74  45  60  11   5   0 0.30  0.0    0 13.6 28 230   M    M   9 18     35 230
26  64  42  53   4  12   0    T  0.0    0 16.0 24 260   M    M   5        36 260
27  45  32  39 -11  26   0 0.02  0.1    T 12.2 22 310   M    M   7 18     28 310
28  74  30  52   2  13   0 0.01  0.0    0 13.6 28 180   M    M   3        37 180
29  80  64  72  21   0   7 0.00  0.0    0 17.0 28 230   M    M   2        39 240
30  72  58  65  14   0   0 0.13  0.0    0  5.2 15 210   M    M   8 18     18 180
================================================================================
SM 1840 1154       458  14  0.70     0.7 335.2          M      141              
================================================================================
AV 61.3 38.5                              11.2 FASTST  PSBL  %   5    MAX(MPH)  
                                 MISC ---->    38 270                 51  260   
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2

                                          STATION:  FLINT
                                          MONTH:    APRIL
                                          YEAR:     2004
                                          LATITUDE:   42 58 N                   
                                          LONGITUDE:  83 44 W                   

[TEMPERATURE DATA]      [PRECIPITATION DATA]       SYMBOLS USED IN COLUMN 16    

AVERAGE MONTHLY: 49.9   TOTAL FOR MONTH:   0.70    1 = FOG                      
DPTR FM NORMAL:   4.5   DPTR FM NORMAL:   -2.43    2 = FOG REDUCING VISIBILITY  
HIGHEST:    87 ON 18    GRTST 24HR  0.30 ON 25-25      TO 1/4 MILE OR LESS      
LOWEST:     23 ON  5                               3 = THUNDER                  
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS              
                        TOTAL MONTH:   0.7 INCH    5 = HAIL                     
                        GRTST 24HR   0.4 ON  3- 3  6 = GLAZE OR RIME            
                        GRTST DEPTH:   0           7 = BLOWING DUST OR SAND:    
                                                       VSBY 1/2 MILE OR LESS    
                                                   8 = SMOKE OR HAZE            
[NO. OF DAYS WITH]      [WEATHER - DAYS WITH]      9 = BLOWING SNOW             
                                                   X = TORNADO                  
MAX 32 OR BELOW:   0    0.01 INCH OR MORE:   9                                  
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   3                                  
MIN 32 OR BELOW:   9    0.50 INCH OR MORE:   0                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0                                  

[HDD (BASE 65) ]                                                                
TOTAL THIS MO.   458    CLEAR  (SCALE 0-3)  10                                  
DPTR FM NORMAL  -119    PTCLDY (SCALE 4-7)  15                                  
SEASONAL TOTAL  6172    CLOUDY (SCALE 8-10)  5                                  
DPTR FM NORMAL  -500                                                            

[CDD (BASE 65) ]                                                                
TOTAL THIS MO.    14                                                            
DPTR FM NORMAL     9    [PRESSURE DATA]                                         
SEASONAL TOTAL    14    HIGHEST SLP 30.37 ON 24                                 
DPTR FM NORMAL     9    LOWEST  SLP 29.52 ON 21                                 

[REMARKS]