07-12-2011, 06:28 AM
it's creeping north :(
![[Image: 1px.gif]](http://i.cdn.turner.com/cnn/.element/img/3.0/1px.gif)
(CNN) -- A dangerous heat wave slowly began to ease in the nation's heartland even as it spread into the Northeast, the National Weather Service said.
Twenty-three states and the District of Columbia were under heat advisories Tuesday.
Excessive heat warnings are in place from western Oklahoma to Connecticut, and from the Deep South to the Ohio Valley.
In these areas, the heat index, or how hot the body feels due to the combined effects of heat and humidity, will reach between 110 and 115 degrees this week.
![[Image: t1larg.heatwave.01.cnn.jpg]](http://www.cnn.com/2011/US/07/12/heat.wave/t1larg.heatwave.01.cnn.jpg)
(CNN) -- A dangerous heat wave slowly began to ease in the nation's heartland even as it spread into the Northeast, the National Weather Service said.
Twenty-three states and the District of Columbia were under heat advisories Tuesday.
Excessive heat warnings are in place from western Oklahoma to Connecticut, and from the Deep South to the Ohio Valley.
In these areas, the heat index, or how hot the body feels due to the combined effects of heat and humidity, will reach between 110 and 115 degrees this week.