The Deadliest Named Storm: Tropical Storm Agnes
Tropical Storm Agnes, which began as a hurricane, is considered the deadliest named storm to strike Maryland in modern history and one of the costliest disasters up to that time.
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- The Cause: In late June 1972, Agnes dumped an astonishing amount of rain over the Mid-Atlantic. Maryland received between 8 and 18 inches of rain over 10 days. This was compounded by already saturated soil and the subsequent massive influx of water from the swollen Susquehanna River watershed.
- Widespread Impact: Agnes affected 20 of Maryland’s 23 counties and Baltimore City, causing massive riverine flooding,…