The Nation's Weather

The Nation's Weather for Friday, July 21, 2023

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NATIONAL SUMMARY

As a potent storm system travels along the Canada border

today, areas of torrential downpours with localized flash

flooding will occur in the Northeast. An added concern will

be severe thunderstorms capable of producing high winds,

hail and perhaps a few tornadoes. More downpours and locally

severe storms will extend from the middle Mississippi Valley

to the Southeast states. Some of the storms will trigger

flash flooding and high winds. More storms are likely to

erupt along the eastern slopes of the Rockies in Colorado,

New Mexico and Wyoming. Cooler and less humid air is

forecast to expand from the northern Plains to the Great

Lakes region. Extreme heat will continue to sear much of the

Southwest under blazing sunshine. The air will be hot over

the Northwest but not as extreme as farther south.

SPECIAL WEATHER

No new information for this time period.

WEATHER HIGHLIGHTS

No new information for this time period.

DAILY EXTREMES

National High Thursday 123 at Death Valley, CA

National Low Thursday 33 at Yellowstone N.P., WY

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