"Warmer air holds more moisture for a longer time. So it may not rain for some days, then suddenly dump a month’s worth of rain in a few hours.
#Nowcasting is basically extrapolation based on clouds and other observations. Radars provide us high resolution, infrared images. Models are also used. That is enough to tell us what to expect in the next few hours. We are increasingly seeing #mesoscale events during monsoon periods which have a very localised impact.”
https://www.hindustantimes.com/world-news/us-news/a-dangerous-heat-wave-is-scorching-much-of-the-us-weather-experts-predict-record-setting-temps-101720217696576.html