9:45 a.m. EST Wednesday
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After slamming the central High Plains earlier in the week, a snow storm continued to expand northeastward from Missouri to Iowa and Illinois.
Heavy and persistent snow caused travel issues in the air and on the ground. Hundreds of flights were canceled and major roadways are clogged.
Chicago began seeing snowfall in the early afternoon hours on Tuesday. Snow followed in Detroit, and conditions became worse for both cities through the evening hours.
Tuesday night and early Wednesday morning, this snow moved further northward, allowing for significant accumulations in southern Wisconsin and central Michigan.
While the heaviest snow accumulations remain north and west of the center of the storm, cold temperatures in northern Pennsylvania and New York allowed for snow to mix in with freezing rain, sleet and rain.
This same storm set records across the country Monday. Nineteen inches of snow fell in Amarillo, Texas, making it the single snowiest 24-hour period on record. The old record was 18.1 inches on March 25, 1934.
The storm halted travel on the roads and at airports from Amarillo to Dodge City. During the height of the storm, snowfall reached immobilizing rates of two to four inches per hour with wind gusts as high as 75 mph. There were numerous drifts of six to eight feet high in the hardest-hit areas across the panhandles of Texas and Oklahoma.
9:25 a.m. EST Wednesday: As the snow shifts east, so does the blog. The live blog will be switching over to EST time.
The New Bedford, Mass., hurricane barrier will be closed to marine traffic due to possible storm surge until 10:30 a.m.
3:10 a.m. CST Wednesday: In Kewaunee, Wisconsin, law enforcement reported significant blowing and drifting snow leading to white-out conditions. About 4 inches of new snow has fallen from the storm.
2:34 a.m. CST Wednesday: In Richmond, Illinois, northwest of Chicago, a total of 10.1 inches of snow was reported to have fallen from the storm so far.
2:25 a.m. CST Wednesday: Manitowoc, Wisc. was reporting a minimum of 6 to 8 inches across the county along with very bad road conditions.
1:30 a.m. CST Wednesday: Germantown, Wisc. had 5.8 inches of snow from the storm so far.
12:28 a.m. CST Wednesday: A heavy band of snow moved through southern Wisconsin, allowing for Middleton, Wis., just west of Madison, to accumulate 4.2 inches of snow.
12:00 a.m. CST Wednesay: Chicago Midway Airport reported the storm total for Tuesday, where 3.6 inches of snow fell.
10:30 p.m. CST Tuesday: Capron, Ill. has accumulated 5 inches of snow from the storm so far.
10:02 p.m. CST Tuesday: Grimes, Iowa was reporting 6.4 inches of snow with winds that created snow drifts up to 2 feet.
9:55 p.m. CST Tuesday: Chicago's O'Hare Airport officially reported 4.2 inches of snow from the storm thus far, with snow still falling.
9:11 p.m. CST Tuesday: Wrap-around snow has made for some significant snow totals in Iowa; 3.5 inches reported in Ladora and 5.4 inches in Adel.
8:19 p.m. CST Tuesday: In Riverton, Ill., 3.3 inches of snow has been reported.
7:40 p.m. CST Tuesday: Freezing rain is now falling in Warm Springs, Va.
6:00 p.m. CST Tuesday: West Allis, Wi., now has 2.6 inches of snow and roads are becoming snow covered.
4:21 p.m. CST Tuesday: Recent Illinois snow accumulations - 3.9" in Winfield, 5.0" in McHenry, 4.5" in Elburn, 5.0" in Gurnee, 4.1" near Sheridan
3:32 p.m. CST Tuesday: 4.5 inches of snow recorded in McHenry County, Ill. Bull Valley Police Department reported that motorists are stranded on the side of roadways and numerous accidents have occurred. Plowers are struggling to keep up with snow removal due to significant blowing and drifting.
3:15 p.m. CST Tuesday: Wheaton, Ill., is now reporting heavy snow with visibility down to one quarter of a mile.
2:55 p.m. CST Tuesday: Heavy snow is falling and it is very windy in Morrison, Ill.
2:25 p.m. CST Tuesday: A total of 6.5 inches of snow has been reported in Fulton, Mo.
1:43 p.m. CST Tuesday: Very heavy snow falling in Beach Park, Ill. One inch has fallen in the past 30 minutes, reducing visibility to 500 feet or less.
1:40 p.m. CST Tuesday: Snow has become more intense in Chicago over the last 20 minutes, reducing visibility to 1/4 of a mile.
1:21 p.m. CST Tuesday: 411 flights, including both arrivals and departures, have been canceled at Chicago O'Hare International Airport today. More than 346 have been delayed.
11:48 a.m. CST Tuesday: 4.5 inches of snow have fallen across Marshall County, Iowa. Visibility has been reduced to between one-quarter and three-quarters of a mile.
11:35 a.m. CST Tuesday: Snow has arrived in Chicago. Conditions will worsen for the city into the evening.
11:31 a.m. CST Tuesday: 12 inches of snow have fallen in Moberly, Mo. Power has been out in the town for the past two hours. Many 3- to 4-inch limbs are snapped off trees.
11:13 a.m. CST Tuesday: Roadways continue to worsen across parts of Illinois. Areas below marked in yellow represent patches of ice and snow. Red sections represent snow and ice covered portions of the state. Route 57 and Route 80 are severe in some locations.
12:45 a.m. CST Tuesday: Snow totals across Iowa: 3.5" in Winterset, 6.0" Near Keosauqua, 5.0" in Creston, 3" in Waukee
10:43 a.m. CST Tuesday: A mix of sleet and snow is falling in Dupage County, Il.
9:50 a.m. CST Tuesday: There are snow drifts up to five feet in northern Missouri. Ice is glazing the trees in Bonfield, Ill. Freezing rain is accumulating on surfaces in northwestern Ohio.
9:10 a.m. CST Tuesday: Heavy, wet snow collapsed a gas station canopy near Columbia, Mo.
9:00 a.m. CST Tuesday: Kearney, Mo., north of Kansas City, has snow drifts up to 2 feet deep and visibility under a quarter of a mile.
8:45 a.m. CST Tuesday: Snow has coated the highways in Missouri, making for difficult travel.
8:30 a.m. CST Tuesday: Tuesday's snowfall of around 3 inches, so far, will be the largest snowfall for Springfield, Mo., since February 2011.
8:00 a.m. CST Tuesday: Bad weather has cancelled 309 flights at Chicago O'Hare and 115 flights at the Kansas City airport.
7:00 a.m. CST Tuesday: Sleet and freezing rain are falling in northern Indiana.
6:45 a.m. CST Tuesday: Here are some snow totals from Missouri at 6:30 a.m. CST: 8 inches in Ferrelview, 5 inches in Ekland, 7 inches in Chillicothe, and 4-5 inches southwest of Kansas City. Heavy snow is causing power outages in Columbia, Mo.
6:30 a.m. CST Tuesday: A trained spotter reported thundersnow Tuesday morning in Versailles, in western Illinois. The spotter also reported 3 inches of snow falling in a half an hour.
6:25 a.m. CST Tuesday: From the National Weather Service Forecasting Office in Fort Worth, Texas: "It has been quite windy across the region. Here is a map of some of the strongest gusts reported."
5:21 a.m. CST Tuesday: Very heavy snow falling across much of east-central and northern Missouri. Snowfall rates are 1-2 inches per hour with 4-6 inches on the ground.
4:17 a.m. CST Tuesday: 6.4 inches of snow have fallen over the last 24 hours in Wichita, Kan. Snow continues to fall.
2:26 a.m. CST Tuesday: 7 inches of snow reported in Anthony, Kan., with drifts up to 4 feet. Numerous roads are closed and impassable.
1:56 a.m. CST Tuesday: The 19 inches of snow that fell in Amarillo, Texas, was the snowiest day on record. The old record was 18.1 inches on March 25, 1934.
1:40 a.m. CST Tuesday: Thundersnow occurring south of Columbus, Mo. Snow falling at 1-2 inches per hour in spots.
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While no major storms are pressing the northeastern United States in the short-term, milder air will trigger spotty, light snow and freezing drizzle to start the week.
Urduja, known globally as Kai-tak, will continue to unleash life-threatening flooding rain and mudslides as it slowly crosses the Philippines into Monday.
As frigid air plunges into and builds over the central United States, a stormy pattern with snow, ice and rain may unfold from Texas to Maine for Christmas holiday travelers.
Those getting a head start on holiday travel across the Rockies and Midwest late this week may be faced with disruptive snow along the way.
While waves of arctic air will continue to pour across the Great Lakes and New England this weekend, milder air will surge farther northward early this week.
The cold reprieve unfolding across the United States will not last long with waves of chilly air set to invade many parts of the country in the days leading up to Christmas.
Winds will again kick up and become strong, raising the risk of rapidly spreading wildfires in Southern California through Sunday as firefighters continue to battle the historic Thomas Fire.
After an unseasonably quiet start to December in the northwestern United States, a significant storm will set its sights on the region spanning Tuesday to Wednesday.