Northeastern Pennsylvania is located in the Appalachian Ridge and Valley region characterized by northeast–southwest oriented ridges running parallel to broad valleys. Snowfall in the region can vary considerably over short distances owing to differences in elevation. To study the impact of elevation on snowfall in this region, a collection of snow events from 2005 to…
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Newest Seal Holder
Congratulations to Chris Bianchi on earning his TV Weathercaster Seal of Approval! Chris Bianchi works on-air at WeatherNation in Denver and has been there since early 2014. As a native of southern Connecticut, childhood nor'easters and snow days piqued his interest in meteorology from a young age. Bianchi’s first language is Spanish (his parents are…
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A Synoptic and Mesoscale Analysis of Heavy Rainfall at Portland, Maine, 13-14 August 2014
Portland, Maine, experienced record setting rainfall of 163.3 mm (6.43 in) on 13–14 August 2014, which resulted in urban flash flooding. This paper examines the key ingredients for heavy convective rainfall: high specific humidity, intense vertical motion, and long rainfall duration at both the synoptic scale and mesoscale. A favorable environment for flooding is identified…
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Thunderstorm Environments over the Northeastern Pacific Ocean and Gulf of Alaska
Thunderstorm environments over the northeastern Pacific Ocean and Gulf of Alaska were analyzed from the summer of 2014 through the early spring of 2016. Thermodynamic parameters investigated in this study highlight processes supporting charge separation in the 0 to −20°C (32 to −4°F) layer (CRTZ; charge reversal temperature zone), similar to the study carried out…
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