This satellite image provided by NOAA and taken Tuesday Jan. 25, 2011 at 10:45 EST shows a huge swath of the United States affected by a winter storm that has already brought layers of dangerous ice and blowing snow, closing roads and airports from Texas to Rhode Island. The storm’s more than 2,000-mile reach threatened to leave about a third of the nation covered in a hodge-podge of harsh weather. Ice fell first and was expected to be followed by up to two feet of snow in some places. (AP Photo/NOAA)

This satellite image provided by NOAA and taken Tuesday Jan. 25, 2011 at 10:45 EST shows a huge swath of the United States affected by a winter storm that has already brought layers of dangerous ice and blowing snow, closing roads and airports from Texas to Rhode Island. The storm’s more than 2,000-mile reach threatened to leave about a third of the nation covered in a hodge-podge of harsh weather. Ice fell first and was expected to be followed by up to two feet of snow in some places. (AP Photo/NOAA)

Rebecca Valk walks to her office in Poughkeepsie, N.Y., in near whiteout conditions Tuesday, Feb. 1, 2011. A monster storm began to bear down on the middle of the nation Tuesday, threatening to leave up to a third of the nation covered in brutal winter weather. (AP Photo/Poughkeepsie Journal, Spencer Ainsley)

Rebecca Valk walks to her office in Poughkeepsie, N.Y., in near whiteout conditions Tuesday, Feb. 1, 2011. A monster storm began to bear down on the middle of the nation Tuesday, threatening to leave up to a third of the nation covered in brutal winter weather. (AP Photo/Poughkeepsie Journal, Spencer Ainsley)

Tim Houchin walks in the snow to work downtown, Tuesday, Feb. 1, 2011 in Tulsa, Oklahoma. Blizzard conditions struck the Tulsa area stranding motorists and shutting down much of the city. (AP Photo/Tulsa World, Christopher Smith)

Tim Houchin walks in the snow to work downtown, Tuesday, Feb. 1, 2011 in Tulsa, Oklahoma. Blizzard conditions struck the Tulsa area stranding motorists and shutting down much of the city. (AP Photo/Tulsa World, Christopher Smith)

A pedestrian walks through the intersection of Tenth and Cherry streets in downtown Columbia, Missouri, Tuesday, Feb. 1, 2011. Layers of dangerous ice and blowing snow closed roads and airports from Texas to Rhode Island on Tuesday as a monster storm began bearing down on the nation. (AP Photo/The Columbia Daily Tribune, Joshua A. Bickel)

A pedestrian walks through the intersection of Tenth and Cherry streets in downtown Columbia, Missouri, Tuesday, Feb. 1, 2011. Layers of dangerous ice and blowing snow closed roads and airports from Texas to Rhode Island on Tuesday as a monster storm began bearing down on the nation. (AP Photo/The Columbia Daily Tribune, Joshua A. Bickel)

Brian Boldt operates a large snowblower clearing the snow during a winter storm at Buffalo Niagara International Airport in Cheektowaga, N.Y., Tuesday, Feb. 1, 2011. (AP Photo/David Duprey)

Brian Boldt operates a large snowblower clearing the snow during a winter storm at Buffalo Niagara International Airport in Cheektowaga, N.Y., Tuesday, Feb. 1, 2011. (AP Photo/David Duprey)

People clear their cars while other cars make their way slowly through the streets of the Brooklyn borough of New York, Thursday, Jan. 27, 2011. (AP Photo/Seth Wenig)

People clear their cars while other cars make their way slowly through the streets of the Brooklyn borough of New York, Thursday, Jan. 27, 2011. (AP Photo/Seth Wenig)

A farmer makes his way on a tractor through a foggy winter landscape near Rosenheim, southern Germany, on Thursday, Jan. 27, 2011. (AP Photo/Matthias Schrader)

A farmer makes his way on a tractor through a foggy winter landscape near Rosenheim, southern Germany, on Thursday, Jan. 27, 2011. (AP Photo/Matthias Schrader)

Outbound traffic creeps along Interstate 66 across the Potomac River from Washington, in Arlington, Virginia, after a major winter storm snarled rush hour traffic in the nation’s capital, Wednesday, Jan. 26, 2011. (AP Photo/J. David Ake)

Outbound traffic creeps along Interstate 66 across the Potomac River from Washington, in Arlington, Virginia, after a major winter storm snarled rush hour traffic in the nation’s capital, Wednesday, Jan. 26, 2011. (AP Photo/J. David Ake)

A subway sign is covered in snow in the aftermath of a winter storm in Philadelphia, Thursday, Jan. 27, 2011. (AP Photo/Matt Rourke)

A subway sign is covered in snow in the aftermath of a winter storm in Philadelphia, Thursday, Jan. 27, 2011. (AP Photo/Matt Rourke)

In this photo provided by the University of Dundee a satellite image of a snow covered UK is seen. The image was received Thursday Dec. 2, 2010 from NASA satellite Terra as snow and freezing temperatures continue to grip the British Isles. (AP Photo/NEODAAS/University of Dundee)

In this photo provided by the University of Dundee a satellite image of a snow covered UK is seen. The image was received Thursday Dec. 2, 2010 from NASA satellite Terra as snow and freezing temperatures continue to grip the British Isles. (AP Photo/NEODAAS/University of Dundee)

A woman is protected by umbrellas as she crosses Vuelta Castillo Park covered by snow in Pamplona, northern Spain, Friday Dec. 3, 2010. A polar wind is crossing the country as many parts of Spain registered freezing temperatures and snow storms. (AP Photo/Alvaro Barrientos)

A woman is protected by umbrellas as she crosses Vuelta Castillo Park covered by snow in Pamplona, northern Spain, Friday Dec. 3, 2010. A polar wind is crossing the country as many parts of Spain registered freezing temperatures and snow storms. (AP Photo/Alvaro Barrientos)

The afternoon sun shines over Sollihoegda, near the Norwegian capital of Oslo, Friday Dec. 3, 2010. In the last few days is has been very cold in many parts of the country and it is reported that these temperatures will continue in the coming days. (AP Photo by Kyrre Lien / SCANPIX)

The afternoon sun shines over Sollihoegda, near the Norwegian capital of Oslo, Friday Dec. 3, 2010. In the last few days is has been very cold in many parts of the country and it is reported that these temperatures will continue in the coming days. (AP Photo by Kyrre Lien / SCANPIX)

A young boy sleds in the snow in Bannockburn, Scotland as large areas of Britain were brought to a halt as the freezing weather tightened its grip Wednesday December 1, 2010. Heavy snow and subzero temperatures swept across Europe, killing at least eight homeless people in Poland, closing major airports in Britain and Switzerland, and causing delays to rail and road traffic across the continent. (AP Photo/Owen Humphreys/PA Wire)

A young boy sleds in the snow in Bannockburn, Scotland as large areas of Britain were brought to a halt as the freezing weather tightened its grip Wednesday December 1, 2010. Heavy snow and subzero temperatures swept across Europe, killing at least eight homeless people in Poland, closing major airports in Britain and Switzerland, and causing delays to rail and road traffic across the continent. (AP Photo/Owen Humphreys/PA Wire)

A snowplow removes the snow around a Lot aircraft while the Geneva International Airport is temporarily closed because of heavy snowfall, in Geneva, Switzerland, on Wednesday, Dec. 1, 2010. (AP Photo/Keystone, Salvatore Di Nolfi)

A snowplow removes the snow around a Lot aircraft while the Geneva International Airport is temporarily closed because of heavy snowfall, in Geneva, Switzerland, on Wednesday, Dec. 1, 2010. (AP Photo/Keystone, Salvatore Di Nolfi)

The paw of a swimming polar bear, enjoying the first snow, is pictured at the zoo in Gelsenkirchen, western Germany, Monday, Nov. 29, 2010. Winter arrives all over Germany with heavy snowfall and ice. (AP Photo/Martin Meissner)

The paw of a swimming polar bear, enjoying the first snow, is pictured at the zoo in Gelsenkirchen, western Germany, Monday, Nov. 29, 2010. Winter arrives all over Germany with heavy snowfall and ice. (AP Photo/Martin Meissner)