The nation’s weather

Weather Underground midday recap for Sunday, July 28, 2013.

Areas of active weather continued across the East on Sunday, while showers and thunderstorms over the Rockies advanced eastward into the Plains.

In the East, a strong low pressure system located over the Great Lakes lifted into Ontario and pushed a cold front eastward across the Appalachians toward the East Coast. As the northern portion of this cold front advanced eastward, the southern portion of this disturbances reached across the Southeast. Showers and thunderstorms developed ahead of the cold front from the Northeast through the Mid-Atlantic states and into the northern shores of the Gulf of Mexico. Flood Advisories and Flood Warnings were issued in areas of the Mid-Atlantic and the Southeast due to periods of heavy rainfall. Meanwhile, wet weather continued in the Upper Great Lakes-primarily in eastern Wisconsin and the Upper Peninsula of Michigan-due to the proximity of the departing low.

Out West, monsoonal moisture over the Southwest maintained showers and thunderstorms from the high elevations of California through the Four Corners. Flooding remained possible with these storms across the desert locations. Just ahead of this activity, a trough of low pressure advanced off the Central Rockies and into the Central and Southern Plains and supported showers and potentially strong thunderstorms from northern Texas through the Northern High Plains.

Temperatures in the Lower 48 states Sunday have ranged from a morning low of 34 degrees at Meacham, Ore. to a midday high of 106 degrees at Thermal, Calif.

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