Nearly 600 people died from heat-related deaths last June
Cell phones across B.C. will ring out at 1:55 p.m. for the test
System pushed out approximately 21,000 notifications following volcano eruption
Reminders follow Jan. 15 tsunami warning across the Pacific
Public Safety Minister Mike Farnworth announced plans to use the system during a Sunday briefing
The alert is part of a twice yearly test of the national Alert Ready system