National Weather Service United States Department of Commerce

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across much of northeast Texas into the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Saturday could bring areas of flooding across parts of the central Plains into the upper Midwest/Great Lakes, and Four Corners states. Read More >

This is a loop of 3.9 micron satellite imagery. This is a near-infrared channel that is sensitive to temperatures.

The image at 0130Z (530 pm PST) shows a black spot at Mt St Helens, indicating very warm temperatures. The subsequent images show the cooling of the volcano, as well as the drifting ash cloud to the east.

Ash plume on satellite image loop