The cold front is pretty easy to spot in Oklahoma this afternoon — it was 92°F in Tipton while temperatures dropped into the 50s a few counties away. A line of severe thunderstorms is announcing the arrival of the cooler air, bringing temps as cold as the low 20s by tomorrow night.

Tropical Cyclone Ita made landfall a few hundred miles north of Cairns on the northeastern coast of Australia around 10PM local time (8AM today in New York). Ita made landfall as a category 4 cyclone — down from a maximum strength of 155 MPH yesterday.

Lightning strikes during a thunderstorm over the north rim of the Grand Canyon. [Photo via U.S. Dept. of Interior on Twitter]

LONDON, ENGLAND - APRIL 02: The Canary Wharf financial district is seen through smog from the soon to be opened Orbit Tower and the Olympic Park on April 2, 2014 in London, England. Dust from the Sahara combined with pollution from mainland Europe has contributed to one of the worst smogs of the year this week with record levels being recorded in parts of England on Tuesday. The BBC weather centre predicts a potential 8 or 9 out of 10 level of air pollution likely to be found in East Anglia and the East Midlands later today. (Photo by Dan Kitwood/Getty Images)