On March 22, 2013 at about 7:53 pm EDT people in the mid-Atlantic states and beyond witnessed a bright, multi-colored fireball caused by a boulder-sized bolide streak across the night sky from the northwest to the southeast.  Meteors have... Read More

The vernal equinox — commonly referred to as the “first day of Spring” in the Northern Hemisphere — occurred at 11:02 UTC on 20 March 2013. A GOES-13 full disk visible image at 11:45 UTC (above) showed the cloud features on the sun-lit portions of the Earth at that time,... Read More

Hat tip to Luis Rosa at the National Weather Service forecast office at San Juan, who alerted us to the presence of an undular bore that was moving southward toward Puerto Rico on 14 March 2013. The southward propagation of the wave clouds associated... Read More

A Meteor entered the Earth’s atmosphere over the Ural Mountains of western Russia today at approximately 0320 UTC (09:20 AM local time). The visible image from just after sunrise, above, from the Chinese FY-2D satellite shows an east-west plume, likely from the meteor, near Chelyabinsk. Meteosat-9 also captured the event... Read More