Downslope Windstorms - RAL - UCAR

Max gusts in kt (y-axis) versus time of day occurs (x)
85
80
75
70
65
60
55
50
0 6 12 18 24
Note that there is no
preferential time of year
for maximum gusts
Max gusts occur during
all parts of the day, with
a weak peak around midday
85
Max gust in kts versus Month of year
80
75
Average windstorm duration
is 8 hrs (min of 1.25 h,
max of 20 h)
70
65
60
Data courtesy of
John Weaver
(see Lee et al 1989;
Weaver and Phillips 1990)
55
50
0 1 2 3 4 5 6 7 8 9 10 11 12