Abstract: ightning flashes during snowstorms occur infrequently compared to warm-season convection. The rarity of such thundersnow events poses an additional hazard because the lightning is unexpected. Because cloud electrification ...

Abstract: unique dataset of coincident high-altitude passive microwave and electric field observations taken by the NASA ER-2 aircraft is used to assess the feasibility of estimating electric fields above electrified clouds using ...

Abstract: We explore the use of machine learning (ML) techniques, namely regression trees (RT), for the purpose of aviation turbulence forecasting at upper levels (20 – 45 kft altitude). In particular, we develop a series of RT-based ...

Abstract: AbstractHigh-altitude atmospheric electricity measurements have been used to calculate the conduction (Wilson) currents that are supplied to the global electric circuit (GEC) by individual electrified clouds. Quantifying ...

Abstract: otal lightning observations that will be available from the GOES-R Geostationary Lightning Mapper (GLM) have the potential to be useful in the initialization of convection-resolving numerical weather models, particularly ...

Abstract: ynoptic weather, S-band dual-polarization radar, and total lightning observations are analyzed from four thunderstorms that produced ?plowable? hail accumulations of 15?60 cm in localized areas of the Colorado Front Range. ...

Abstract: AbstractIn recent years, hail accumulations from thunderstorms have occurred frequently enough to catch the attention of the National Weather Service, the general public, and news agencies. Despite the extreme nature of ...