According to the Alaska Volcano Observatory, the Mount Cleveland volcano erupted around 22:05 UTC on 19 June 2012 (volcanic activity notice). A comparison of AWIPS images of the MODIS volcanic ash mass loading, ash height, and ash effective radius products (above) showed the volcanic ash plume about 1 hour and 40 minutes later (23:44 UTC). The... Read More

The daily maximum temperature reported by the cooperative observer at Death Valley, California was 119 F on 17 June 2012, which was the highest temperature in the Lower 48 states so far in the summer season. A... Read More

Carlotta is the third named system, and second Hurricane, of the young eastern Pacific Tropical Season. Hourly imagery from GOES-East shows the increase in organization in the storm as it approaches the coast of Mexico on the morning of June 15 2012. AMSU imagery from Channel 7 at 11UTC on 15 June shows the characteristic warm core usually found... Read More

A radar reflectivity composite (above) showed a large Mesoscale Convective System (MCS) that was moving across parts of Minnesota and Wisconsin on 14 June 2012, producing heavy rainfall (2.99 inches at Zumbrota in southeastern Minnesota) and some hail (SPC... Read More