US

Weather Underground midday recap for Sunday, September 05, 2010.

Calmer and drier weather returned to much of the East by Sunday afternoon as the extratropical storm once known as Earl moved into the Maritime provinces. The system produced gusty winds and showers across northern New England through the morning hours. Low pressure over eastern Canada also produced lake-effect showers across portions of northern Michigan and the Lower Great Lakes.

To the south, active weather developed along and to the south of a frontal boundary that extended near the Florida state line. Sea-breezes advanced slowly inland across the Florida Peninsula and enhanced thunderstorms through the afternoon with locally heavy rainfall and gusty winds.

In the West, cloudy and cool weather returned to the northwestern quadrant of the nation as a low pressure trough resided over the region and a strong storm system moved through the Northern Intermountain West into the Northern High Plains. The system produced showers, periodic heavy precipitation, thunderstorms, and gusty winds. Heavy precipitation over portions of eastern Montana translated into hazardous travel conditions with reduced visibilities and ponding of water on area roadways. Elsewhere in the West, quiet weather activity developed from California and the Southwest through the Central and Southern Plains. The Southwest and the Central and Southern Plains experienced warm to hot temperatures as high pressure ushered warm air from Mexico.

Temperatures in the Lower 48 states Sunday have ranged from a morning low of 28 degrees at Truckee-Tahoe, Calif. to a midday high of 102 degrees at Needles, Calif.