Most of Ontario is under a severe weather warning Tuesday, once again threatening flood damage in a province where insurers have already paid approximately $800 million for natural catastrophe damages. This cumulative total for the year in Ontario does not include claims totals for a flooding event earlier in the month, when a "pocket storm" drenched areas of Toronto with up to the same amount of rain in three hours as the city usually experiences in a month. Between 50 to 75 mm of rain poured down during a three-hour period in Toronto on Aug. 7, whereas the city’s average monthly precipitation in August is about 78 mm.