Moisture Sources and Life Cycle of Convective Systems over Western Colombia

Table 1

Summary of number, life cycle duration and maximum extension of the Ocean and Continent MCS during 2003 Boreal seasons.

Boreal Season	Number of MCS		MCS life cycle duration (hours)		MCS maximum extension (10^3 km^2)
	Continent	Ocean	Continent	Ocean	Continent	Ocean
Winter (DJF)	36	31	12.1	9.4	42.0	26.4
Spring (MAM)	26	40	10.7	8.9	40.8	29.6
Summer (JJA)	49	51	14.5	11.4	86.3	52.6
Autumn (SON)	50	69	11.6	11.2	52.3	47.4
Annual average*	161	191	12.2	10.2	55.4	39.0

*In case of number of MCS, the annual value corresponds to the total number of systems.