Jan. 7 (Bloomberg) -- Residents of the eastern U.S. basked in unseasonable warmth today as Utah and Colorado braced for more heavy snow tonight. In Nevada, evacuated residents of a flooded town waited to find out when they can return home.

U.S. Senator Harry Reid was to fly over the town of Fernley, Nevada, to examine the damage caused when a levee broke along the Truckee Canal on Jan. 5, Nevada National Guard spokesman Erick Studenicka said in an interview. Nearly 300 homes were evacuated as floodwaters poured in.

From the Great Lakes to the Atlantic coast, temperatures may reach as much as 30 degrees above normal through Jan. 9, according to AccuWeather.com, a private forecasting service. The higher temperatures may lead to flooding as snow melts.

It was 59 degrees Fahrenheit (15 Celsius) in New York City as of 2 p.m. Unusually mild temperatures as high as 68 in Washington and 61 in New York were forecast for tomorrow, AccuWeather.com said.

In contrast, parts of the Rocky Mountains west of Denver may get as much as 12 inches (30.5 centimeters) of snow today, the National Weather Service said. Temperatures in Denver, where as much as 5 inches of snow is forecast, may fall to 5 degrees.

``There's a lot of snow everywhere,'' said Alex Hoon, a Reno, Nevada-based meteorologist at the National Weather Service.

Wind chill temperatures in Jackson Hole, Wyoming, may be 12 degrees below zero Fahrenheit. Wind gusts of up to 45 miles (72 kilometers) per hour may blow through Carlsbad, New Mexico.

Fog in Chicago

As Chicago's O'Hare International Airport, 100 flights were canceled and others delayed up to 30 minutes today by wind and scattered thunderstorms, said Karen Pride of the Chicago Aviation Department. More than 200 flights were canceled yesterday at O'Hare International Airport, where fog reduced visibility, Chicago Department of Aviation spokesman Gregg Cunningham said.

About 102,000 Pacific Gas & Electric Co. customers in northern California remained without power today, following one of the 15 worst storms of the last 50 years, company spokesman Brian Swanson said. More than 2.2 million of PG&E's 5.5 million customers in the state lost service over the weekend during a storm that dumped 11 feet of snow in parts of the Sierra Nevada.

Without Power

Some customers in northern California and the Sierra Nevada mountains may be without power into the middle of this week ``where our crews are having trouble accessing outages due to heavy snow, downed trees, flooding and mudslides,'' Swanson said in a telephone interview.

The storm will head toward the southern Plains today and enter eastern Canada by midweek, according to AccuWeather.com. Trapped between warm air in the South and East and colder pockets in the Plains, it may produce severe thunderstorms.

Utah's Department of Transportation said major interstates were open, with most being reported as wet, slushy or snow covered. Three, including Interstate 15, had reports of icy patches, the agency said in an online road condition report.

Colorado had travel restrictions on parts of Interstate 70, with road conditions ranging from wet to packed snow, the Department of Transportation said in an online road condition advisory.

To contact the reporter on this story: Nancy Kercheval in Washington at nkercheval@bloomberg.net.; Ryan Flinn in San Francisco at rflinn@bloomberg.net.

Last Updated: January 7, 2008 14:59 EST