High Pressure along East Coast

A virtual sauna bath is what USA Today called the weather along the I-95 corridor today.  And I thought it was hot yesterday.

So drink plenty of water, or seltzer in my case, and minimize outside physical labor.

A high pressure means sinking air, where it then sprays out along the surface drawn toward a low pressure.  There are two mainland lows in the US: one in Nevada and one in southern Texas.

You can get some pretty neat (and detailed) weather analysis at the AMS Datastreme Atmosphere Project.

http://www.ametsoc.org/amsedu/dstreme/images/sfc_pres.gif

Here is the current isobar (lines of equal pressure) map.