Study of Two Upper Cold Lows and Their Relationship with Locally Intense Rain

The main objective of the research was to determine synoptic and mesoscale conditions, which, under influence two Upper Cold Lows (UCL), favor occurrence locally intense rain in Cuba. From outputs Rapid Refresh (RAP) model, characteristics UCL with four cases associated them were analyzed. variables that studied are relative humidity, temperature, geopotential height, vertical speed, wind force, divergence vorticity. Mesoscale conditions analyzed by using Weather Research Forecast System (WRF) model. Vertical cuts, numerical soundings analysis radar observations satellite images carried out. CAPE shows extreme values higher than 6000 J/kg near center both systems LI reaches −13. developed an environment weak shear surface layer −500 hPa moderate strong upper troposphere. High humidity identified at low levels, a dry medium levels increase 300–200 layer.