A yellow warning for heat was issued at 10:45 a.m. on August 8 for Halifax, with temperatures reaching 31 degrees, feeling like 38. Lowest temperatures will not drop below 19 degrees, and the heat is expected to continue through the weekend. Residents are advised to protect against heat-related illness, especially those at greater risk like older adults and those living alone. Monitor for the early signs of heat exhaustion: signs may include headache, nausea, dizziness, thirst, dark urine and intense fatigue. Heat stroke is a medical emergency.