| Event Category | Disaster |
| Event Group | Natural |
| Event Subgroup | Meteorological - Hydrological |
| Event Type | Tornado |
| Place | Sarnia ON |
| Event Start Date | March 27, 1991 |
| Event End Date | March 27, 1991 |
| Comments | Sarnia ON, March 27, 1991. |
| Fatalities | 0 |
| Injured / Infected | 0 |
| Evacuated | 0 |
| Estimated Total Cost | $28,310,657 |
| Federal DFAA Payments | Unknown |
| Provincial DFAA Payments | $0 |
| Provincial Department Payments | $0 |
| Municipal Costs | Unknown |
| OGD Costs | Unknown |
| Insurance Payments | $28,310,657 |
| NGO Payments | Unknown |
| Utility - People Affected | 1560000 |
| Magnitude | 0.0 |