Update at 5:00 p.m. EST Wednesday:
This blog is no longer live, as the severe threat has ended across the Northeast. Detailed reports of the event can be found below. Photos from the storm can be found here.
Another winter storm bellowed through the Midwest and Northeast, following quickly on the heels of Monday's weather mess.
The storm dumped nearly a foot of snow across portions of Kansas, Missouri, Illinois, Indiana, Ohio, Pennsylvania, New York, Massachusetts, Vermont, New Hampshire and Maine.
By Wednesday morning, several states, including New York and Kansas, declared states of emergency and cited salt shortages for maintenance crews.
Travel conditions were treacherous for both road and air traffic, causing multiple accidents across the region, including a fatal incident along the Pennsylvania Turnpike. As of late Wednesday afternoon national flight cancellations exceeded 3,270 and flight delays topped 3,500.
Following the storm, more than 600,000 were left without power across southeastern Pennsylvania, ranking this series of outages as the second-highest number of outages since Superstorm Sandy.
While snow will taper off in New England and the storm will move away from the Northeast Wednesday evening, low temperatures will threaten those still without power and create problems for the Thursday morning commute.
"It is going to be a frigid night for those without power," AccuWeather Meteorologist Andrew Mussoline said. "The frigid weather will help develop black ice in the Northeast so travelers will have to watch out."
For the full story, read "Midweek Winter Storm to Sock More Than Two Dozen States."
4:00 p.m. EST Wednesday: Flight cancellations out of and into Boston Logan International Airport top 550, as LaGuardia hits 700 and national cancellations exceed 3,270.
3:20 p.m. EST Wednesday: Heavy snow continued to fall over northern upstate New York to portions of Maine. Temperatures have pushed above freezing over much of southern New England.
2:42 p.m. EST Wednesday: The speed limit on I-90 in Massachusetts remains 40 mph due to snow and ice. More than 3,000 crews are preparing to clear the roadways for the evening commute, according to the Massachusetts Department of Transportation.
1:30 p.m. EST Wednesday: New York 511 reports multiple weather incidents across the state, disruptions to public transportation:
Bus: due to constr., east Q49 Bus at 89th St & 31st Ave (Queens) buses on detour— 511 New York (@511NY) February 5, 2014
1:10 p.m. EST Wednesday: The scene on Route 2 in Bono, Ohio, late this morning:
12:50 p.m. EST Wednesday: The New York NWS office reports nearly a foot of snow for the Newburgh area:
12:30 p.m. EST Wednesday: Watch the latest edition of AccuWeather LIVE for our most recent storm updates:
12:00 p.m. EST Wednesday: PECO reports nearly 600,000 power outages in southeastern Pennsylvania. This ranks as the second-highest number of outages behind Superstorm Sandy, when there was a total of 800,000 outages on Oct. 29, 2013, according to philly.com.
11:30 a.m. EST Wednesday: Snow is falling quickly in Boston. Farther to the west in Ludlow, Mass., an NWS-trained spotter reports 11.5 inches of snow.
11:15 a.m. EST Wednesday: According to PECO, more than 504,000 customers are in the dark in the greater Philadelphia area. The company said to expect the number to continue rising as the storm continues.
10:40 a.m. EST Wednesday: Flight cancellations out of and into LaGuardia top 500 as national cancellations reach more than 2,700.
10:00 a.m. EST Wednesday: In New England, the NWS is reporting 9.5 inches of snow for Burlington, Conn., 8 inches for Coventry, Conn., 9 inches for Southbridge, Mass., and 8 inches for Ludlow, Mass., so far.
9:40 a.m. EST Wednesday: New York Governor Andrew Cuomo declared state of emergency, announces shortage of road salt among other announcements:
#WinterStom update: I-84 will remain closed until further notice; 2300 people without power due to ice downstate— Andrew Cuomo (@NYGovCuomo) February 5, 2014
9:10 a.m. EST Wednesday: An accident has been reported on the Pennsylvania Turnpike, on the detour that was made to circumvent an accident scene from earlier this morning.
9:00 a.m. EST Wednesday: PECO reports 400,000 customers without power in the Philadelphia area.
8:50 a.m. EST Wednesday:
We have 100% of our #CTDOT trucks out clearing state roads. Including our contractor trucks, that's 837 trucks clearing the roads right now— Governor Dan Malloy (@GovMalloyOffice) February 5, 2014
8:25 a.m. EST Wednesday: An NWS-trained spotter in Ashland, Mis., reports 7 inches of snow for the area.
8:05 a.m. EST Wednesday: Eastbound traffic on the Pennsylvania Turnpike rerouted after fatal tractor-trailer accident near exit 242.
7:55 a.m. EST Wednesday: More than 122,000 FirstEnergy customers are without power in parts of Pennsylvania, Maryland, West Virginia and New Jersey.
7:40 a.m. EST Wednesday: Nearly 2,500 flights have been canceled across the U.S. so far as major Eastern airports list excessive delays:
6:55 a.m. EST Wednesday: Watch "AccuWeather LIVE: Morning Edition" for the latest storm details:
6:20 a.m. EST Wednesday: Connecticut Transit has suspended services for the time being and will reevaluate the weather situation at 7 a.m. EST.
5:55 a.m. EST Wednesday: Up to 127,000 PECO Energy customers in southeastern Pennsylvania currently listed without power.
5:09 a.m. EST Wednesday: Transformers were reportedly popping in Gloucester County, N.J., as trees and power lines have 0.25 of an inch of ice on them. There were 3,500 listed without power.
4:12 a.m. EST Wednesday: Binghamton, N.Y., reporting 7.6 inches of snow so far.
3:50 a.m. EST Wednesday: Latest totals detail 21,656 customers without electricity in Kentucky.
3:26 a.m. EST Wednesday: There is 10.5 inches of storm snowfall total in Riverside, Mo., which is just north of Kansas City.
1:29 a.m. EST Wednesday: Report of 5 inches of snow on the ground in Valencia, Butler County, Pa.
11:59 p.m. EST Tuesday: Numerous severe accidents have closed sections of I-70 and I-68 in Maryland in both directions.
11:18 p.m. EST Tuesday: As much as 4.5 inches of sleet on the ground in Milan, Ripley County, Ind., per NWS-trained spotter.
10:45 p.m. EST Tuesday: At least 0.75 of an inch of freezing rain has accumulated in Marion, Ky., via the emergency manager.
9:00 p.m. CST Tuesday: Mississippi Governor Phil Bryant declares state of emergency due to winter storm.
8:55 p.m. CST Tuesday: Five inches of snow fell in two hours at New Lexington, Ohio, an NWS spotter reported.
8:50 p.m. CST Tuesday: Difficult travel reported across most of Indiana, the Indiana Department of Transportation said.
8:20 p.m. CST Tuesday: It was still snowing but 7.5 inches of snow had fallen 20 miles north of Terre Haute, Ind., an NWS spotter reported.
8:15 p.m. CST Tuesday: As much as 2.5 inches of snow fell in 50 minutes at Zanesville, Ohio, an NWS spotter reported.
8:05 p.m. CST Tuesday: Up to 7 inches of snow fell at Albany and Macon, Mo., an NWS cooperative observer and an emergency management official reported.
8:00 p.m. CST Tuesday: Lock Haven University of Pennsylvania closed its main and Clearfield, Pa., campuses for Wednesday, Feb. 5, the university said on its website.
7:50 p.m. CST Tuesday: Heavy sleet with one mile visibility reported at Cincinnati, according to NWS observation.
7:45 p.m. CST Tuesday: Snowing near Toledo, Ohio, on U.S. Route 20. Webcam from the OhioDOT.
7:25 p.m. CST Tuesday: Entergy Arkansas reports widespread and extensive ice-related damage with downed power lines, broken poles in back yards and city streets and collapsed cross-arms across the area.
7:20 p.m. CST Tuesday: 0.3 of an inch of freezing rain at Kevil, Ky., an NWS spotter reported.
6:50 p.m. CST Tuesday: 11.5 inches of snow fell at Mount Hope, Kan., an NWS cooperative observer reported.
6:40 p.m. CST Tuesday: With more snow expected, Wichita, Kan., broke a 117-year-old snow record with 7 inches. The old record was 5 inches in 1897.
6:30 p.m. CST Tuesday: Moderate snow and ice conditions occurring in southwestern Ohio, according to OhioDOT.
6:20 p.m. CST Tuesday: Snow, sleet and fog reported at Cincinnati, including this stretch of I-71 as shown on an OhioDOT webcam.
6:00 p.m. CST Tuesday: 13 inches of snow had fallen at Enterprise, Kan., the fire company there reported.
5:45 p.m. CST Tuesday: The Pennsylvania Turnpike continues to operate under a Winter Weather Warning with travelers urged to reduce their speeds and to keep alert for changing travel conditions and emergency crews working on the roadway.
5:35 p.m. CST Tuesday: Light snow moves into Cleveland. Visibility was down to 1.5 miles.
5:30 p.m. CST Tuesday: Boston Mayor Martin J. Walsh declared a Snow Emergency and Parking Ban for the City of Boston, in effect at 11 p.m. EST Tuesday. Boston Public Schools will be closed Wednesday, Feb. 5.
5:25 p.m. CST Tuesday: Indianapolis Mayor Greg Ballard issued a Yellow advisory for the city, urging motorists to use caution, slow down and leave extra space for other vehicles.
5:15 p.m. CST Tuesday: 11 inches of snow fell at Salina, Kan., an NWS spotter reported.
5:10 p.m. CST Tuesday: Travel not advised by Illinois Department of Transportation in central and southern Illinois.
5:00 p.m. CST Tuesday: Kansas Gov. Sam Brownback declares a state of emergency for his state.
4:55 p.m. CST Tuesday: About 10,600 Southwest Tennessee Electric Membership Corp. members were without power in Tipton County, Tenn., the utility said on its Facebook page.
4:45 p.m. CST Tuesday: 7.5 inches of snow with 2- to 3-feet snow drifts, five miles west-southwest of Washington, Kan., an NWS spotter reported.
4:30 p.m. CST Tuesday: About 1,700 flights have been canceled, according to FlightStats. Another 3,600 flights were delayed.
4:15 p.m. CST Tuesday: 7.5 inches of snow fell in Topeka, Kan., and 6 inches of snow had fallen at Leavenworth, Kan., emergency managers in both areas report.
4:10 p.m. CST Tuesday: Difficult travel conditions beginning to develop in parts of Kentucky, the state's Department of Transportation said.
4:05 p.m. CST Tuesday: Snow-covered travel near Topeka, Kan.
4:00 p.m. CST Tuesday: Missouri Department of Transportation and public works crews are unable to keep up with the roadways, according to the Boone County Office of Emergency Management Twitter feed.
3:40 p.m. CST Tuesday: Snowfall will fall at rates of 1 to 2 inches per hour this evening from Indianapolis through Dayton and Columbus, creating treacherous travel, AccuWeather.com Meteorologist Brian Edwards said. Precipitation will initially begin as snow begin in Louisville and Cincinnati before transitioning to a significant ice storm with freezing rain rates of 1 to 2 tenths of an inch per hour.
3:25 p.m. CST Tuesday: Motorists are to use "caution" or "extreme caution" on Nebraska highways, including I-80 at Grand Island, according to the Nebraska Department of Roads.
3:20 p.m. CST Tuesday: More than 1,000 Ameren Missouri power customers were without service, the utility said.
3:15 p.m. CST Tuesday: Power outages with up to a third of an inch of ice reported in Stewart County, Tenn., by the county's emergency management agency.
3:05 p.m. CST Tuesday: Snow-covered roads reported in Missouri, including this stretch of I-70 near Blackwater, the Missouri Department of Transportation said.
3:00 p.m. CST Tuesday: Three inches of snow, 2.5 inches in the last two hours, in Dix, Ill., an NWS spotter reported.
2:45 p.m. CST Tuesday: Ten inches of snow had fallen in Mount Hope, Kan., a cooperative observer reported to the National Weather Service.
2:40 p.m. CST Tuesday: Ice storm reported in Weakley County, Tenn., with 0.50 of an inch of ice. Power lines and trees are down with widespread power outages, the county's emergency management agency reported.
2:30 p.m. CST Tuesday: Vehicle crashes and motorist assists continue to grow in Kansas, according to the Kansas Highway Patrol.
Statewide KHP stats as of 2:00 p.m. today - 75 property damage accidents, 8 injury accidents, 214 motorist assists. #stayhome— KS Highway Patrol (@kshighwaypatrol) February 4, 2014
2:05 p.m. CST Tuesday: Nine inches of snow fell in Mountridge, Kan., the city's fire chief reported.
1:45 p.m. CST Tuesday: Multiple roads blocked due to downed trees in Perry and Danville, Ark., emergency management reports. Numerous power outages also reported throughout Perry County.
1:20 p.m. CST Tuesday: Conditions are already deteriorating across portions of western Illinois. Roads near Quincy and Springfield are now covered in snow and ice, according to the Illinois Department of Transportation.
12:45 p.m. CST Tuesday: Freezing rain falling near the border of Oklahoma and Arkansas in Spiro, Okla., according to local law enforcement.
12:20 p.m. CST Tuesday:
11:45 a.m. CST Tuesday: Large tree downed across one lane of Highway 161 in McAlmont, Ark., according to the NWS.
11:35 a.m. CST Tuesday: US Highway 64 is blocked through Augusta, Ark., due to downed power lines, local law enforcement reports.
11:30 a.m. CST Tuesday: A trained spotter reports major tree damage due to accumulating ice in Conway County, Ark. Tree limbs are littering the ground and power lines are coated with very thick ice.
11:15 a.m. CST Tuesday: Heavy snow falling in Sedgwick County, Kan., with 7.0 inches already on the ground, according to a trained observer. Visibility is below one-tenth of a mile.
11:00 a.m. CST Tuesday: Tune in to AccuWeather LIVE now for the latest on the winter weather slamming the Plains, Midwest and Northeast Tuesday into Wednesday:
10:10 a.m. CST Tuesday:One-tenth of an inch of Ice has accumulated on trees throughout Howard County, Ark., local law enforcement reports. Downed tree limbs and isolated power outages are resulting.
10:03 a.m. CST Tuesday: Heavy icing is occurring across portions of Arkansas. A trained spotter reports 0.25 of an inch accumulation in Conway County, Ark.
9:49 a.m. CST Tuesday: Bridge operator for the Department of Highways in Kansas reports 5.5 inches of snow in the far northwest portion of Marion County, with visibility down to one-quarter of a mile.
9:45 a.m. CST Tuesday: As many as 6 inches of snow have accumulated across parts of Kansas this morning. Very heavy snow rates are falling across central and eastern portions of the state.
9:39 a.m. CST Tuesday: Between 4 a.m. and 7 a.m., 4.5 inches of snow fell across Abilene, Kan., the local emergency manager reports.
8:12 a.m. CST Tuesday: Texas Department of Transportation reports a fatal accident due to slippery conditions northbound on US Highway 84 northwest of the junction with FM 399.
Several storms will bring periods of rain and gusty winds to the west coast of the United States next week with the potential for one of these to reach Southern California.
This weekend will feel dramatically different from the summerlike conditions earlier this week in the northeastern United States as colder weather, and in some cases, a taste of winter with snow arrives.
Rain will continue to cause travel delays and raise the risk of isolated flooding in parts of the northeastern United States and Atlantic Canada into the weekend.
The changing of the seasons will bring beneficial rainfall to northern Brazil, a region that has experienced severe drought over the past several years.
Damaging storms pounded the Pacific Northwest, while two powerful typhoons struck the Philippines within a four-day span.
Typhoon Haima made a second landfall in southeast China on Friday after leaving at least 13 dead in the northern Philippines.
Hurricane Juan kills more than 200 and results in $1.5 billion in damages.
Tuscaloosa, AL (1994)
Lightning struck during Alabama-Mississippi football game. 3 people were injured.
Kansas City, MO (1996)
6.5" of snow. 8 million dollars damage from downed trees and powerlines.