Get Forecast Bar Weather alerts on your iPhone
Back to All Alerts

Extreme Heat Warning

Active

Northern New London; Southern Middlesex; Southern New London; Northwest Suffolk; Northeast Suffolk

Starts
Ends
Issued
Severity Severe
Urgency Expected
Certainty Likely

Details

* WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 110 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values up to 101 possible.
* WHERE...In Connecticut, Northern New London, Southern Middlesex, and Southern New London Counties. In New York, Northeast Suffolk, Northern Nassau, Northwest Suffolk, Southeast Suffolk, Southern Nassau, and Southwest Suffolk Counties.
* WHEN...For the Extreme Heat Warning, from noon Wednesday to 9 PM EDT Friday. The hottest temperatures and heat indices are expected Thursday and Friday afternoons. For the Extreme Heat Watch, from Friday evening through Saturday evening.
* IMPACTS...Extreme heat and humidity will significantly increase the potential for heat related illnesses, particularly for those working or participating in outdoor activities.
* ADDITIONAL DETAILS...This has potential to be a multi-day extreme heat event with near record high temperatures and little overnight relief. This level of heat can be deadly for those without adequate cooling and hydration. Impacts to transportation infrastructure and electrical and water systems are also possible.
Explore All Active Alerts
Data from the National Weather Service
Service provided by Forecast Bar