Table 2. Details of forward trajectories from Austin (TX) and the Arbuckle Mountains (OK).

Altitudes in bold represent the approximate height and time when the trajectories crossed London, Ontario.

Source Area	Height at Source	FORWARD TRAJECTORIES
	Date
	12 January 2014	13 January 2014				14 January 2014
		Time (UTC)
	18 hrs	00 hrs	06 hrs	12 hrs	18 hrs	00 hrs	06 hrs	12 hrs	18 hrs
	Meters above ground level
Austin, TX	150	150	200	750	1000	2000	2250	2750	>3000
	250	250	500	1100	1750	2000	2250	2750	>3000
	500	500	900	1250	1750	2750	2900	>3000	>3000
Arbuckle Mts.	150	150	500	1000	1000	1400	1500	1900	1600
	250	400	1500	1500	1500	1700	1700	1800	.2000
	500	900	2000	1900	2000	2000	2500	3000	>3000