Extreme Heat Warning for Miami-Dade and Broward Counties
This alert is no longer in effect.
NOAA issued it on August 19, 2026, 4 days ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
An Extreme Heat Warning is in effect until 7 PM EDT for Miami-Dade and Broward Counties with heat index values up to 112.
Read this weather record in 30 seconds
- Record type
- Extreme Heat Warning
- Affected area
- Miami-Dade and Broward Counties, Florida
- Issued
- August 19, 2026
- Issuing authority
- NWS Miami FL
Heat notices are time-bound and location-specific. Confirm the current forecast and local public-health guidance before relying on this archived record.
Record status: historical. It was issued 4 days ago; use the issuing agency's live warning service for current conditions in Miami-Dade and Broward Counties, Florida.
Alert Details
An Extreme Heat Warning has been issued by the National Weather Service Miami FL. The alert is effective from August 19 at 11:45 AM EDT until August 19 at 7:00 PM EDT.
Affected Areas
The warning covers Inland Broward County, Metro Broward County, Inland Miami-Dade County, Metropolitan Miami Dade, Coastal Broward County, Coastal Miami Dade County, and Far South Miami-Dade County.
What You Should Do
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. Stay cool, stay hydrated, stay informed.
Expected Conditions
Dangerously hot conditions with heat index values up to 112 for Miami Dade and Broward Counties.
Timeline
The alert is in effect until 7 PM EDT on August 19, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Nationwide notices with similar length or severity timing 8
Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (992 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to August 19, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.