NYC Heat Advisory Ends Tonight Wed May 20 at 8 PM — Mamdani Heat Plan Wraps Without Major Incident; Cooling Centers Stay Open Through End of Day

The unseasonable May heat wave — heat index up to 96°F Tue-Wed — winds down tonight at 8 PM when NWS advisory expires. Mamdani-activated Heat Emergency Plan operated cooling centers across all five boroughs. No reported heat-related fatalities so far; DHS outreach intensified for unsheltered residents. First operational test of the Mamdani-era heat protocol; framing in early reviews: routine execution, no fanfare.

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