STOCKTON — A late May storm dumped hail and heavy rain Sunday afternoon wreaking havoc throughout north Stockton.Cory Mueller, a meteorologist with the National Weather Service, said the thunderstorm that slammed north Stockton brought 1.44 inches of rain in one hour.[gh:blockquote class="twitter-tweet" data-lang="en"][gh:p lang="en" dir="ltr"]1:20pm update - Thunderstorms are developing across the Valley.