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Heat Advisory in effect for STL area

Heat and humidity will build again across the bi-state Thursday as an upper level ridge continues to dominate the region.

The combination of dew points in the 70s and air temperatures in the mid-90s will allow for dangerous conditions to arise in the afternoon.

A Heat Advisory is in effect for much of the viewing area from noon until 8:00 Thursday night. Heat index values will range between 103-106 by late afternoon.

If you must be outside, take frequent breaks and stay hydrated. Make sure pets have a shelter in the shade and plenty of water if they cannot be brought inside.

{"url":"https://twitter.com/scottontvKSDK/status/763712799277195265","author_name":"Scott Connell KSDK","author_url":"https://twitter.com/scottontvKSDK","html":"&#lt;blockquote class=\"twitter-tweet\"&#gt;&#lt;p lang=\"en\" dir=\"ltr\"&#gt;Heat advisory for &#lt;a href=\"https://twitter.com/hashtag/STL?src=hash\"&#gt;#STL&#lt;/a&#gt; with a hazy, humid start to the day &#lt;a href=\"https://twitter.com/hashtag/stlwx?src=hash\"&#gt;#stlwx&#lt;/a&#gt; more at &#lt;a href=\"https://t.co/TDjvlTcxu1\"&#gt;https://t.co/TDjvlTcxu1&#lt;/a&#gt; &#lt;a href=\"https://t.co/lTRR6tNOPt\"&#gt;pic.twitter.com/lTRR6tNOPt&#lt;/a&#gt;&#lt;/p&#gt;— Scott Connell KSDK (@scottontvKSDK) &#lt;a href=\"https://twitter.com/scottontvKSDK/status/763712799277195265\"&#gt;August 11, 2016&#lt;/a&#gt;&#lt;/blockquote&#gt;\n&#lt;script async src=\"//platform.twitter.com/widgets.js\" charset=\"utf-8\"&#gt;&#lt;/script&#gt;","width":550,"height":null,"type":"rich","cache_age":"3153600000","provider_name":"Twitter","provider_url":"https://twitter.com","version":"1.0"}

Today's air quality index is moderate (orange), meaning the air is not healthy for sensitive groups, and the UV index will continue to be high at 9 for Thursday.

Relief will come this weekend as a cold front slowly sinks south on Friday, bringing the chance for showers and storms through the weekend.

Related: Ways to save energy and beat the heat

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