Below average temperatures from the Rockies to the Appalachians, threatening record values, U.S.

Below average temperatures from the Rockies to the Appalachians, threatening record values, U.S.

Temperatures from the Rockies to the Appalachians are expected to be 5 to 17 °C (10 to 30 °F) below average through Thursday, April 16, 2020. The core of the cold air will be across the midsection of the nation, where record cold temperatures are possible from the Upper Mississippi Valley into portions of the Plains.

Cold high pressure is forecast to lie across large portions of the nation over the next two days, NWS forecaster Ziegenfelder noted on Tuesday, April 14.

This will result in areas from the Rockies eastward into the East having temperatures well below average, threatening record values for the date. 

The core of the cold air will be across the midsection of the nation where record cold temperatures are possible from the Upper Mississippi Valley into portions of the Plains. 

In contrast, above-average temperatures are expected over parts of Florida, with record warm values possible over the next two days for both morning lows and afternoon highs.

Along with the cold temperatures across the midsection of the nation, accumulating snows are possible from Tuesday into Wednesday night, April 15 in locations in and near the northern and central Rockies. 

Overnight on Wednesday, the snow will expand onto parts of the Central Plains.

In addition, a stationary front will linger over Florida through Thursday, April 16. The boundary will aid in producing showers and thunderstorms over parts of Northern Florida, with the activity expected to continue through Thursday.

Some of these thunderstorms will become severe on Tuesday.

In addition, some of the storms could produce heavy rainfall capable of isolated flash flooding from Tuesday into Thursday morning.

Featured image credit: GFS, TropicalTidbits


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