Observations of Coastally Transitioning West African Mesoscale Convective Systems during NAMMA

Table 6

Mean wind speed (WS) shear (m s⁻¹ hPa⁻¹) for four levels within the atmospheric column are provided. Values are shown for the means of each system type for pre-MCS, during MCS, and post-MCS wind profiles along with the statistical significance based on a Student's t-test.

	1000–800 hPa	800–600 hPa	600–400 hPa	400–150 hPa
Pre-MCS WS (TCP)	0.025	0.040	−0.024	−0.037
Pre-MCS WS (NTCP)	0.021	−0.008	0.007	0.012
Stat. Sign. at 95%	No	Yes	No	Yes
Dur-MCS WS (TCP)	0.029	0.033	−0.024	−0.036
Dur-MCS WS (NTCP)	0.025	0.017	−0.014	0.021
Stat. Sign. at 95%	No	No	No	Yes
Post-MCS WS (TCP)	0.054	0.020	−0.007	−0.059
Post-MCS WS (NTCP)	0.038	0.022	−0.028	−0.004
Stat. Sign. at 95%	Yes	No	Yes	Yes