Liberal, KS

Now: 27 °F

Currently: Fog

Hi: 38 °F | Lo: 22 °F

Monday

Hi: 39 °F 

Lo: 17 °F

Tuesday

Hi: 44 °F 

Lo: 18 °F

Wednesday

Hi: 54 °F 

Lo: 26 °F

Thursday

Hi: 51 °F 

Lo: 23 °F

Friday

Hi: 55 °F 

Lo: 26 °F

Heat Dome Traps Midwest in Pressure Cooker

KSCB News - July 20, 2011 5:58 am

CHICAGO (AP) – For millions of people enduring extreme heat and

humidity this week, it feels like they’re living in a pressure

cooker. And in a sense, they are.

Meteorologists say much of the United States is trapped under a

heat "dome" caused by a huge area of high pressure that’s

compressing hot, moist air beneath it.

The dome is producing temperatures in the mid-90s to low 100s,

and heat-index levels well above 100 degrees from the northern

Plains to Texas and from Nebraska to the Ohio Valley.

Meteorologists say the dome also pushes the jet stream and its

drier, cooler air farther north. And hot, humid air from the Gulf

of Mexico circulates around the dome and travels farther inland

than normal.

 

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