* WHAT…For the Extreme Heat Warning, dangerously hot conditions
with heat index values up to 111 expected. For the Extreme Heat
Watch, dangerously hot conditions with heat index values up to 110
possible.
* WHERE…DC and portions of central, north central, northeast,
northern, and southern Maryland, and central and northern Virginia.
* WHEN…For the Extreme Heat Warning, from 11 AM to 9 PM EDT
Tuesday. For the Extreme Heat Watch, from Wednesday morning
through Wednesday evening.
* IMPACTS…Heat related illnesses increase significantly during
extreme heat and high humidity events.