Daily Lightning Maps - Central Arizona - July and August 1995 to 1999

The calendar below, contains links to daily lightning strike maps for central Arizona.  The region covered extends in a rectangle from latitude 32 N to 35 N and longitude 109 W to 114 W [(463 km x 278 km) or (288 mi x 173 mi)].  This is roughly centered on the Phoenix radar.  The strikes are color coded for the time of day, with the color changing every hour during most of the time when storms are typically active (see figure below for actual scale).  The 24 hour time period chosen does not match a calendar day, but is instead chosen to be more of a 'storm day'.  9:00 AM MST was chosen as the dividing line from one storm day to the next, since this is about at the average nadir of lightning activity.  Certainly this choice, as opposed to using a midnight dividing line, will be much less likely to spread the same storm onto two different maps.  The grey scale background shows the topography with the contour values shown.  The resolution is quite fine, but multiple strikes are often close enough that they plot on top of each other and that is not indicating in anyway on the plots.  In order for two strikes to plot on top of each other, they must have the same position to within about a quarter of a mile, which is somewhat less than the uncertainty in the strike locations themselves.


 July 1997
            1     2     3     4     5
6     7     8     9    10   11   12
13   14   15   16   17   18   19
20   21   22   23   24   25   26
27   28   29   30   31     1    2
August 1997
3     4     5    6     7     8     9
10   11   12   13   14   15   16
17   18   19   20   21   22   23
24   25   26   27   28   29   30
31

 July 1998
                   1    2    3    4
5     6     7     8     9   10  11
12   13   14   15  16  17  18
19   20   21   22  23  24  25
26   27   28   29  30  31   1
August 1998
2      3     4     5     6     7     8
9    10    11   12   13   14    15
16   17   18   19   20   21   22
23   24   25   26   27   28   29
30   31 

 July 1999
                          1     2      3
4     5     6     7     8     9    10
11   12   13   14   15   16   17
18   19   20   21   22   23   24
25   26   27   28   29   30   31
August 1999
1     2     3     4     5    6    7
8     9    10   11   12   13   14
15   16   17   18   19   20   21
22   23   24   25   26   27   28
29   30   31