The winter and summer seasons clashed this week, letting a multitude of weather phenomena unfold around the world.
At midweek, dense winter fog enshrouded New York City, setting an eerie, wintry scene for the region, while New England enjoyed a snow-free sunrise.
Moving west, massive pileups flared up across the northern Plains, as blowing snow made for near-zero visibility near Sioux Falls, S.D.
On the West Coast, Southern California erupted in flames, as the return of the Santa Ana winds against the drought-stricken land triggered two immense wildfires in the area.
Across the Pacific, a resilient heat wave slammed Australia making for sizzling temperatures at the Australian Open in Melbourne. The heat caused suspension of gameplay on Tuesday and Wednesday, as multiple players and spectators suffered heat-related illnesses.
North of Oz, widespread rainfall caused deadly flooding and mudslides, claiming more than 25 lives in the southern Philippines.
A blanket of fog surrounds the New York City skyline on Wednesday morning, Jan. 15, 2014. (Original Photo/Michael Surtees)
A snow-free winter sunrise on Wednesday, Jan. 13, 2014, makes for a nice change of pace in Massachusetts. (AccuWeather Photo Gallery Photo/Carlos Godinho)
Along I-90, west of Sioux Falls, S.D., blowing snow and low visibility result in a 22-car pileup on Thursday, Jan. 16, 2014. (Twitter Photo/NWS Sioux Falls)
A wildfire burns in the hills just north of the San Gabriel Valley community of Glendora, Calif., on Thursday, Jan. 16, 2014. (AP Photo/Nick Ut)
A young spectator cools herself down in in the fountain in Garden Square as play was suspended when organizers implemented the Extreme Heat policy during second round matches at the Australian Open tennis championship in Melbourne, Australia, Thursday, Jan. 16, 2014. (AP Photo/Joshua Baker)
In this Sunday, Jan. 12, 2014, photo, rescuers from the Comval Emergency Response Team continue their rescue operation following the flooding of Compostela Valley and nearby provinces in southern Philippines. (AP Photo/A. Dayao)
Torrential rain and strong thunderstorms pushed across the southern Plains on Saturday, spawning tornadoes and dangerous flash flooding from Kansas to Texas.
Lifeguards along the East and Gulf coasts are preparing to deal with one of the greatest beach dangers: rip currents.
An extremely dangerous and life-threatening flooding situation will continue into Memorial Day, across portions of Texas, Oklahoma, Kansas, Arkansas and Missouri.
Showers and thunderstorms threaten to interfere with Memorial Day festivities across more than half of the United States.
Many areas in the Eastern states will have consistent summerlike heat and a buildup of humidity for the last week of May.
The second major tennis tournament of the year began on Sunday, as the world’s best tennis players begin their quest for the 2015 French Open title at Roland Garros in Paris.
Abilene, TX (2000)
109 degrees, hottest ever in May.
Knoxville, TN (1807)
Hail 10" in circumference hail; a tornado went over the river, sucking fish out of the water.
Inland snowstorm from New Jersey to New England; 4" of snow at Berkshire County, MA.