Figure 4. Diurnal variation of the 950–800-hPa-mean streamwise acceleration (shaded, m s-2 \(\times\) 10-4) and wind vectors from November 2013–March 2014: (a) 0700 LST, (b) 1100 LST, (c) 1500 LST, (d) 1900 LST, (e) 2300 LST, (f) 0300 LST. Warm (cold) colors indicate acceleration (deceleration) of the wind.