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000
CXUS55 KFSD 041843
CF6SUX

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

                                          STATION:   SIOUX CITY IA
                                          MONTH:     APRIL
                                          YEAR:      2011
                                          LATITUDE:   42 24 N
                                          LONGITUDE:  96 23 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
                                     12Z  AVG MX 2MIN
DY MAX MIN AVG DEP HDD CDD  WTR  SNW DPTH SPD SPD DIR MIN PSBL S-S WX    SPD DR
================================================================================

 1  59  30  45   2  20   0 0.00  0.0    0 12.1 31 330   M    M   2        38 340
 2  65  27  46   2  19   0 0.00  0.0    0  8.8 23 130   M    M   1        29 140
 3  63  41  52   8  13   0    T  0.0    0 21.0 37 330   M    M   1        45 340
 4  51  26  39  -6  26   0    T    T    0 22.0 39 340   M    M   5        47 340
 5  71  23  47   2  18   0 0.00  0.0    0  8.1 28  40   M    M   3        33  40
 6  65  36  51   5  14   0 0.00  0.0    0  8.8 30  40   M    M   1        45  30
 7  63  34  49   3  16   0    T  0.0    0 10.1 22 160   M    M   2        29 150
 8  61  46  54   8  11   0 0.00  0.0    0 11.9 20 130   M    M   9 1      26 110
 9  82  49  66  19   0   1 0.22  0.0    0 10.0 24 280   M    M   6 138    31 250
10  71  44  58  11   7   0    T  0.0    0 12.2 24 300   M    M   9 1      30 320
11  64  36  50   2  15   0 0.00  0.0    0 10.8 23 330   M    M   0        29 320
12  78  30  54   6  11   0 0.00  0.0    0  9.7 22 190   M    M   0        25 180
13  59  44  52   3  13   0    T  0.0    0 15.7 31  40   M    M   4        38  30
14  55  43  49   0  16   0 0.38  0.0    0 17.2 30  80   M    M   8 13     37  70
15  43  35  39 -10  26   0 2.01    T    0 17.1 29 350   M    M  10 1      37  90
16  48  30  39 -11  26   0    T    T    0 17.2 29 320   M    M   7 1      36 320
17  50  32  41  -9  24   0 0.04    T    0  8.8 21  90   M    M   7        25 100
18  44  37  41 -10  24   0 0.53  0.0    0  8.6 18  60   M    M  10 1      24  50
19  38  33  36 -15  29   0 0.65    T    0 11.2 23  60   M    M  10 1      30  60
20  49  32  41 -10  24   0    T    T    0  8.8 24 300   M    M   7        31 300
21  47  32  40 -12  25   0    T  0.0    0 11.5 20 120   M    M   7        25 120
22  67  39  53   1  12   0    T  0.0    0  9.2 25 120   M    M   6 1      33 120
23  50  33  42 -11  23   0 0.00  0.0    0 12.6 25 300   M    M   8        33 310
24  59  29  44  -9  21   0 0.00  0.0    0  3.1  8  70   M    M   1 12     12 350
25  56  32  44  -9  21   0 0.34  0.0    0  7.6 20  10   M    M   5 1      25  10
26  51  44  48  -6  17   0 0.02  0.0    0 12.0 21 320   M    M   9 1      24 320
27  62  38  50  -4  15   0    T  0.0    0 16.0 35 320   M    M   4        48 330
28  70  44  57   2   8   0    T  0.0    0 12.2 26 340   M    M   3        33 330
29  77  42  60   5   5   0 0.06  0.0    0 17.7 39 160   M    M   3 13     49 160
30  62  41  52  -3  13   0 0.04  0.0    0 15.9 28 300   M    M   5        36 260
================================================================================
SM 1780 1082       512   1  4.29    T    367.9          M      153
================================================================================
AV 59.3 36.1                              12.3 FASTST   M    M   5    MAX(MPH)
                                 MISC ---->  # 39 340               # 49  160
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES
-PRECIPITATION AMOUNTS IN COLUMNS 7, 8, AND WERE SUBMITTED FOR
CONSIDERATION AS THE OFFICIAL PRECIPITATION FOR SIOUX CITY, IA.
-COLUMN 17 PEAK WIND IN M.P.H.
-SNOW DEPTH IN COLUMN 9 IS RECORDED AT 6 AM CST (12Z)


PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2

                                          STATION:  SIOUX CITY IA
                                          MONTH:    APRIL
                                          YEAR:     2011
                                          LATITUDE:   42 24 N
                                          LONGITUDE:  96 23 W

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

AVERAGE MONTHLY: 47.7   TOTAL FOR MONTH:   4.29    1 = FOG OR MIST
DPTR FM NORMAL:  -1.8   DPTR FM NORMAL:    1.54    2 = FOG REDUCING VISIBILITY
HIGHEST:    82 ON  9    GRTST 24HR  2.20 ON 14-15      TO 1/4 MILE OR LESS
LOWEST:     23 ON  5                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:    T          5 = HAIL
                        GRTST 24HR    T  ON 20-20  6 = FREEZING RAIN OR DRIZZLE
                        GRTST DEPTH:   0           7 = DUSTSTORM OR SANDSTORM:
                                                       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:  10
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   6
MIN 32 OR BELOW:  11    0.50 INCH OR MORE:   3
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1

[HDD (BASE 65) ]
TOTAL THIS MO.   512    CLEAR  (SCALE 0-3)  10
DPTR FM NORMAL    39    PTCLDY (SCALE 4-7)  14
TOTAL FM JUL 1  6866    CLOUDY (SCALE 8-10)  6
DPTR FM NORMAL   163

[CDD (BASE 65) ]
TOTAL THIS MO.     1
DPTR FM NORMAL   -10    [PRESSURE DATA]
TOTAL FM JAN 1     1    HIGHEST SLP 30.31 ON 21
DPTR FM NORMAL   -10    LOWEST  SLP 29.26 ON  3

[REMARKS]
15TH - NEW RECORD DAILY PRECIPITATION 2.01 (PREVIOUS 1.03 IN 1998)
19TH - NEW RECORD LOW MAXIMUM TEMPERATURE 38 (PREVIOUS 39 IN 1966/78)

#FINAL-04-11#