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Storm Impacting the Northwest U.S.; Fire Weather Conditions in Southern California; Severe Weather in the South

A Pacific storm is bringing areas of low elevation rain, moderate to heavy mountain snow, and high winds to the Northwest. Strong Santa Ana winds and very dry conditions are producing elevated to critical fire weather conditions in southern California. Isolated strong to severe thunderstorms are possible through early Wednesday morning across parts of northeast Texas into western Tennessee. Read More >

 

April 2019 ended up much warmer and drier across eastern Kentucky. Jackson totaled 2.80" of

precipitation which is over one inch below normal.  The precipitation sensor failed  at London from

April 19th to 21st so the monthly precipitation total is missing.  It was the 10th driest April at Jackson.

Both Jackson and London were two to three degrees above normal. Jackson saw the 11th warmest

April while London tied for the 16th warmest April. 

 

Here are the April climate summaries and April Local Climatological Data reports for Jackson and London:

 

Jackson Kentucky data:

 

...THE JACKSON KY CLIMATE SUMMARY FOR THE MONTH OF APRIL 2019...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1981 TO 2019

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              92   04/27/1986
 LOW               20   04/07/1982
HIGHEST            85   04/11        86      -1       83  04/18
                                                          04/13
LOWEST             24   04/01        29      -5       25  04/08
AVG. MAXIMUM     71.3              68.0     3.3     63.7
AVG. MINIMUM     48.9              46.7     2.2     41.0
MEAN             60.1              57.4     2.7     52.4
DAYS MAX >= 90      0               0.2    -0.2        0
DAYS MAX <= 32      0               0.1    -0.1        0
DAYS MIN <= 32      1               1.9    -0.9        7
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        10.29   2015
 MINIMUM         0.78   1985
TOTALS           2.80              3.83   -1.03     4.12
DAILY AVG.       0.09              0.13   -0.04     0.14
DAYS >= .01         9              12.4    -3.4       16
DAYS >= .10         8               8.2    -0.2        9
DAYS >= .50         1               2.7    -1.7        4
DAYS >= 1.00        0               0.7    -0.7        0
GREATEST
 24 HR. TOTAL    0.55   04/14 TO 04/14              0.76

SNOWFALL (INCHES)
RECORDS
 TOTAL           17.8   1987
TOTALS              T               1.0    -1.0      0.7
SINCE 7/1        10.4              23.5   -13.1     22.5
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0               0.3    -0.3        0
GREATEST
 SNOW DEPTH         0                                  T
 24 HR TOTAL        T   04/15 TO 04/15               0.3

DEGREE_DAYS
HEATING TOTAL     184               268     -84      383
 SINCE 7/1       3960              4121    -161     4137
COOLING TOTAL      44                39       5       13
 SINCE 1/1         44                46      -2       25
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              3.9
HIGHEST WIND SPEED/DIRECTION    24/250    DATE  04/14
HIGHEST GUST SPEED/DIRECTION    51/260    DATE  04/14

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           14
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     60

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              4     MIXED PRECIP               0
HEAVY RAIN                7     RAIN                       8
LIGHT RAIN               12     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                1     SLEET                      0
FOG                      11     FOG W/VIS <= 1/4 MILE      2
HAZE                      0

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$

 

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

                                          STATION:   JACKSON KY
                                          MONTH:     APRIL
                                          YEAR:      2019
                                          LATITUDE:   37 35 N
                                          LONGITUDE:  83 19 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  50  24  37 -16  28   0 0.00  0.0    0  2.4  8 160   M    M   0        15 360
 2  55  35  45  -8  20   0 0.00  0.0    0  3.2 10 190   M    M   5        16 170
 3  69  40  55   1  10   0 0.00  0.0    0  5.1 13 280   M    M   0        23 280
 4  76  49  63   9   2   0 0.00  0.0    0  3.1  9 270   M    M   1        16 200
 5  66  50  58   4   7   0 0.25  0.0    0  2.2  9 190   M    M  10 1      17 180
 6  73  54  64  10   1   0 0.00  0.0    0  1.8  7 200   M    M   7        10  80
 7  74  54  64   9   1   0 0.41  0.0    0  4.9 13 230   M    M   5 1      22 250
 8  65  57  61   6   4   0 0.34  0.0    0  2.2  8  30   M    M   8 12     16 220
 9  76  51  64   8   1   0 0.00  0.0    0  4.2 14 320   M    M   5 12     25 290
10  76  50  63   7   2   0 0.00  0.0    0  2.6  9 310   M    M   0        14 300
11  85  57  71  15   0   6 0.00  0.0    0  5.5 14 190   M    M   0        27 200
12  72  59  66  10   0   1 0.32  0.0    0  5.2 13 200   M    M   6 13     20 190
13  70  53  62   5   3   0    T  0.0    0  1.5  7  50   M    M   6        14 140
14  82  43  63   6   2   0 0.55  0.0    0  7.7 24 250   M    M   7 13     51 260
15  46  36  41 -16  24   0 0.03    T    0  5.5 17 260   M    M   8 1      30 240
16  78  36  57  -1   8   0 0.00  0.0    0  4.5 14 230   M    M   0        28 270
17  79  60  70  12   0   5 0.00  0.0    0  4.2 10 230   M    M   1        18 250
18  82  65  74  16   0   9    T  0.0    0  6.3 13 190   M    M   3        27 180
19  70  49  60   2   5   0 0.48  0.0    0  3.0 12 210   M    M   6 13     23 230
20  50  42  46 -13  19   0    T  0.0    0  4.3 14 260   M    M   8 1      25 260
21  63  39  51  -8  14   0    T  0.0    0  1.5  8 310   M    M   6        14 280
22  78  44  61   2   4   0 0.00  0.0    0  2.3  7 300   M    M   0        12 290
23  83  56  70  10   0   5 0.00  0.0    0  4.9 15 240   M    M   0        27 260
24  81  58  70  10   0   5 0.00  0.0    0  2.6  9 240   M    M   2        18 260
25  78  59  69   9   0   4 0.17  0.0    0  3.9 12 190   M    M   2 1      23 260
26  62  49  56  -4   9   0 0.25  0.0    0  7.4 20 270   M    M   7 13     40 290
27  68  42  55  -6  10   0    T  0.0    0  2.7 10 280   M    M   4        17 230
28  67  47  57  -4   8   0 0.00  0.0    0  5.2 12 280   M    M   6        25 280
29  81  44  63   2   2   0 0.00  0.0    0  3.1 14 250   M    M   0        31 230
30  84  64  74  13   0   9 0.00  0.0    0  3.0 10 170   M    M   0        18 180
================================================================================
SM 2139 1466       184  44  2.80    T    116.0          M      113
================================================================================
AV 71.3 48.9                               3.9 FASTST   M    M   4    MAX(MPH)
                                 MISC ---->  # 24 250               # 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:  JACKSON KY
                                          MONTH:    APRIL
                                          YEAR:     2019
                                          LATITUDE:   37 35 N
                                          LONGITUDE:  83 19 W

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

AVERAGE MONTHLY: 60.1   TOTAL FOR MONTH:   2.80    1 = FOG OR MIST
DPTR FM NORMAL:   2.7   DPTR FM NORMAL:   -1.03    2 = FOG REDUCING VISIBILITY
HIGHEST:    85 ON 11    GRTST 24HR  0.55 ON 14-14      TO 1/4 MILE OR LESS
LOWEST:     24 ON  1                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:    T          5 = HAIL
                        GRTST 24HR    T  ON 15-15  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:   9
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   8
MIN 32 OR BELOW:   1    0.50 INCH OR MORE:   1
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.   184    CLEAR  (SCALE 0-3)  14
DPTR FM NORMAL   -84    PTCLDY (SCALE 4-7)  14
TOTAL FM JUL 1  3960    CLOUDY (SCALE 8-10)  2
DPTR FM NORMAL  -161

[CDD (BASE 65) ]
TOTAL THIS MO.    44
DPTR FM NORMAL     5    [PRESSURE DATA]
TOTAL FM JAN 1    44    HIGHEST SLP 30.40 ON  1
DPTR FM NORMAL    -2    LOWEST  SLP 29.29 ON 14

[REMARKS]
#FINAL-04-19#

 

London Kentucky data:

 

...THE LONDON KY CLIMATE SUMMARY FOR THE MONTH OF APRIL 2019...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1954 TO 2019

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              90   04/10/1995
                        04/27/1986
 LOW               19   04/08/2007
HIGHEST            82   04/30        MM      MM       81  04/13
                        04/29
                        04/23
LOWEST             25   04/01        MM      MM       23  04/08
AVG. MAXIMUM     71.4              68.6     2.8     63.5
AVG. MINIMUM     45.6              44.5     1.1     39.2
MEAN             58.5              56.5     2.0     51.4
DAYS MAX >= 90      0               0.1    -0.1        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      2               3.2    -1.2        7
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        10.23   2011
 MINIMUM         0.58   1976
TOTALS           3.32*             4.05   -0.73     5.39
DAILY AVG.       0.12*             0.14   -0.02     0.18
DAYS >= .01         8*             12.0    -4.0       15
DAYS >= .10         7*              7.9    -0.9       10
DAYS >= .50         2*              2.8    -0.8        6
DAYS >= 1.00        0*              0.9    -0.9        1
GREATEST
 24 HR. TOTAL    0.92*  04/08 TO 04/08              1.32

SNOWFALL (INCHES)
RECORDS
 TOTAL            9.0   1987
TOTALS             MM               1.0      MM       MM
SINCE 7/1          MM              10.3      MM       MM
SNOWDEPTH AVG.     MM                MM      MM       MM
DAYS >= 1.0        MM               0.3      MM       MM
GREATEST
 SNOW DEPTH        MM                                 MM
 24 HR TOTAL       MM                                 MM

DEGREE_DAYS
HEATING TOTAL     200               276     -76      406
 SINCE 7/1       3980              4101    -121     4110
COOLING TOTAL      12                23     -11        5
 SINCE 1/1         12                26     -14       13
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.5
HIGHEST WIND SPEED/DIRECTION    36/270    DATE  04/14
HIGHEST GUST SPEED/DIRECTION    52/230    DATE  04/14

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           14
NUMBER OF DAYS PC             13
NUMBER OF DAYS CLOUDY          3

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              5     MIXED PRECIP               0
HEAVY RAIN                7     RAIN                       5
LIGHT RAIN               16     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      11     FOG W/VIS <= 1/4 MILE      2
HAZE                      2


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$

...RAINFALL TOTAL INCOMPLETE DUE TO PRECIPITATION SENSOR FAILURE
FROM APRIL 19TH-21ST...

 

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

                                          STATION:   LONDON KY
                                          MONTH:     APRIL
                                          YEAR:      2019
                                          LATITUDE:   37  4 N
                                          LONGITUDE:  84  5 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  52  25  39 -13  26   0 0.00    M    M  4.7 12  50   M    M   0        17  50
 2  56  34  45  -7  20   0 0.00    M    M  2.9 12 260   M    M   6        18 190
 3  69  31  50  -3  15   0 0.00    M    M  3.7 16 290   M    M   0 8      24 290
 4  73  41  57   4   8   0    T    M    M  4.7 20 180   M    M   1        25 180
 5  63  51  57   4   8   0 0.37    M    M  3.9 12 250   M    M  10 1      16 180
 6  75  53  64  10   1   0 0.00    M    M  2.1  9 260   M    M   6        15 260
 7  71  51  61   7   4   0 0.38    M    M  4.3 16 180   M    M   5 13     27 170
 8  64  54  59   5   6   0 0.92    M    M  1.8 17 350   M    M   7 123    25 340
 9  77  50  64   9   1   0 0.00    M    M  3.9 16 330   M    M   5 12     22 340
10  76  42  59   4   6   0 0.00    M    M  2.3  8 150   M    M   0        12  20
11  82  53  68  13   0   3 0.00    M    M  8.6 24 190   M    M   0        37 200
12  76  53  65   9   0   0 0.30    M    M  7.6 20 270   M    M   5 1      28 190
13  69  52  61   5   4   0    T    M    M  3.4 12  10   M    M   7        16  90
14  79  42  61   5   4   0 0.52    M    M 14.3 36 270   M    M   6 13     52 230
15  54  38  46 -10  19   0    T    M    M  8.2 22 270   M    M   7        31 260
16  80  35  58   1   7   0 0.00    M    M  5.6 17 240   M    M   0 8      23 190
17  79  50  65   8   0   0 0.00    M    M  5.7 15 220   M    M   0        21 210
18  80  54  67  10   0   2    T    M    M  7.7 23 190   M    M   2        37 200
19  70  46  58   0   7   0    M    M    M  8.1 20 270   M    M   9 13     28 270
20  47  42  45 -13  20   0    M    M    M  8.8 17 210   M    M   9 1      25 200
21  68  41  55  -3  10   0    M    M    M  3.1 12 340   M    M   5 1      17 320
22  79  41  60   1   5   0 0.00    M    M  1.2  7  50   M    M   0        10  40
23  82  48  65   6   0   0    T    M    M  6.6 22 260   M    M   0        29 260
24  81  51  66   7   0   1 0.00    M    M  3.5 15 250   M    M   0        23 220
25  75  58  67   8   0   2 0.39    M    M  6.5 28 260   M    M   2 1      36 250
26  65  45  55  -5  10   0 0.43    M    M 11.8 28 280   M    M   6 1      44 260
27  68  39  54  -6  11   0 0.01    M    M  3.5 13 230   M    M   4 3      18 220
28  68  48  58  -2   7   0 0.00    M    M  9.1 17 280   M    M   6        25 290
29  82  45  64   4   1   0 0.00    M    M  5.8 20 180   M    M   1        31 170
30  82  55  69   8   0   4 0.00    M    M  2.3 14 210   M    M   0        20 250
================================================================================
SM 2142 1368       200  12  3.32*   M    165.7          M      109
================================================================================
AV 71.4 45.6                               5.5 FASTST   M    M   4    MAX(MPH)
                                 MISC ---->  # 36 270               # 52  230
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

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

                                          STATION:  LONDON KY
                                          MONTH:    APRIL
                                          YEAR:     2019
                                          LATITUDE:   37  4 N
                                          LONGITUDE:  84  5 W

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

AVERAGE MONTHLY: 58.5   TOTAL FOR MONTH:   3.32*   1 = FOG OR MIST
DPTR FM NORMAL:   2.0   DPTR FM NORMAL:   -0.73*   2 = FOG REDUCING VISIBILITY
HIGHEST:    82 ON 30,29 GRTST 24HR  0.92 ON  8- 8      TO 1/4 MILE OR LESS
LOWEST:     25 ON  1                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:    M          5 = HAIL
                        GRTST 24HR    M  ON   M    6 = FREEZING RAIN OR DRIZZLE
                        GRTST DEPTH:  M  ON   M    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:   8*
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   7*
MIN 32 OR BELOW:   2    0.50 INCH OR MORE:   2*
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0*

[HDD (BASE 65) ]
TOTAL THIS MO.   200    CLEAR  (SCALE 0-3)  14
DPTR FM NORMAL   -76    PTCLDY (SCALE 4-7)  13
TOTAL FM JUL 1  3980    CLOUDY (SCALE 8-10)  3
DPTR FM NORMAL  -121

[CDD (BASE 65) ]
TOTAL THIS MO.    12
DPTR FM NORMAL   -11    [PRESSURE DATA]
TOTAL FM JAN 1    12    HIGHEST SLP 30.40 ON  1
DPTR FM NORMAL   -14    LOWEST  SLP 29.31 ON 19

[REMARKS]
*PRECIPITATION TOTAL INCOMPLETE DUE TO SENSOR FAILURE FOR APRIL 19TH-21ST.
#FINAL-04-19#