A heat-health watch and warning system with extended season and evolving thresholds

BMC Public Health

Table 3 Indicator weights, thresholds currently in use, and the present study in the Greater Montreal area

Geographical area	Season	Lag	Indicator weights					Thresholds (°C)		Performance results
Geographical area	Season	Lag	α₀		α₁		α₂	s^Tmax	s^Tmin	Sensitivity (%)	FA/year
Greater Montreal area² [12]	May–September	2	0.4		0.4		0.2	33	20	100	0.12
The present study (median result)	May–September	1	0.8	0.7^*	0.2	0.3^*	n.a	32	21	100	0.10

²: Excludes Laurentides, *: represents α₀ and α₁ of Tmin, n.a: there is no α₂ in the case of the present study

ISSN: 1471-2458