Get Forecast Bar
Weather alerts on your iPhone
Back to All Alerts
Extreme Heat Watch
ActiveDistrict of Columbia; Frederick; Carroll; Northern Baltimore; Cecil
Starts
Ends
Issued
Severity
Severe
Urgency
Future
Certainty
Likely
Details
* WHAT...For the Heat Advisory, heat index values up to 106 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values up to 112 possible.
* WHERE...DC, and portions of central, north central, northeast, northern, and southern Maryland, and central, northern, and northwest Virginia.
* WHEN...For the Heat Advisory, from 11 AM to 8 PM EDT Wednesday. For the Extreme Heat Watch, from Thursday morning through Friday evening.
* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.
Data from the National Weather Service
Service provided by Forecast Bar