North America
- Boston
- Chicago
- Jacksonville
- Kansas City
- Minneapolis
- New York
- Philadelphia
- Savannah
- Seattle
- Washington
The 2017 US hurricane season witnessed six category 3+ (major) hurricanes, with Irma being the strongest. The estimated number of fatalities ranges around 400 to over 1400, and economic losses at almost USD$300 billion from these events.
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Boston
In January 2018 Boston was hit by a "bomb cyclone" storm that brought coastal flooding to Massachusetts. In March Winter Storm Riley caused a 0.9 metre (3 feet) storm surge, the third highest since records began in 1921, causing widespread flooding and havoc to public transport, school closures.
Both datasets contain fluvial and pluvial undefended data.
Standard data contains 3 layers for return periods of 20, 50 and 100 years.
Extended data contains 10 layers. Everything in standard data, and return periods for 5, 10, 75, 200, 250, 500, 1000 years.
Chicago
Towards the end of June 2018, Chicago saw 6 inches (15.24 cm) well above the 2-inch (5 cm) historical average, causing sewage discharge into the Chicago River on the city’s Northwest Side.
In July 2018 locally heavy rainfall and thunderstorms caused numerous reports of flooding, mainly across the southern and Indiana suburbs. Rainfall totals in excess of 2.5 inches (6.35 cm) fell causing significant flooding in Lake County, Indiana with Munster, Calumet City and Lynwood especially hardest hit.
Both datasets contain fluvial and pluvial undefended data.
Standard data contains 3 layers for return periods of 20, 50 and 100 years.
Extended data contains 10 layers. Everything in standard data, and return periods for 5, 10, 75, 200, 250, 500, 1000 years.
Jacksonville
September 2017 Jacksonville, Florida, where the highest storm surge on record pushed the St. Johns River to heights, not seen since 1846. Rainfall between 5 inches - 15 inches (12.7 cm - 38.1 cm) fell.
Both datasets contain fluvial and pluvial undefended data.
Standard data contains 3 layers for return periods of 20, 50 and 100 years.
Extended data contains 10 layers. Everything in standard data, and return periods for 5, 10, 75, 200, 250, 500, 1000 years.
Kansas City
Overnight on July 26 - 27, 2017 heavy rain caused major flash flooding across portions of the Kansas City Metro area. The rain started across northern Kansas City around 9 pm and continued to track across the metro through to the early morning hours. Most locations experienced 3+ hours of heavy rain rates approaching 1-2 inches (2.5 cm - 5 cm) per hour. The results were widespread precipitation totals of 5 to 7 inches of rain (12.7cm - 17.7 cm). This caused catastrophic flooding along several local streams, including Indian Creek in Overland Park, Kansas and Tomahawk Creek in Leawood, Kansas.
Numerous swift water rescues were carried out, with many businesses losing stock (including automobiles) that were washed away in the flood waters.
Both datasets contain fluvial and pluvial undefended data.
Standard data contains 3 layers for return periods of 20, 50 and 100 years.
Extended data contains 10 layers. Everything in standard data, and return periods for 5, 10, 75, 200, 250, 500, 1000 years.
Minneapolis
The largest flash flood in Twin Cities history occurred on July 23–July 24, 1987. Dubbed locally "The Super Storm", more rain fell from this event than any other recorded in Twin Cities history. The storm caused damage to 9,000 homes, killed two people, and caused $27 million in damage. Some areas in the southern metro area recorded 11 inches (27.9 cm) of rain.
More recently in early September 2018, a months worth of rain fell in one day, causing widespread flooding.
Both datasets contain fluvial and pluvial undefended data.
Standard data contains 3 layers for return periods of 20, 50 and 100 years.
Extended data contains 10 layers. Everything in standard data, and return periods for 5, 10, 75, 200, 250, 500, 1000 years.
New York
In mid-August 2018, heavy rain in New York City flooded roads, caused power failures and collapsed a wall in New Jersey.
Central Park received almost three inches of rain (7.6 cm) in less than six hours, and Suffolk County on Long Island had four inches of rain (10.1 cm) in the same period.
Both datasets contain fluvial and pluvial undefended data.
Standard data contains 3 layers for return periods of 20, 50 and 100 years.
Extended data contains 10 layers. Everything in standard data, and return periods for 5, 10, 75, 200, 250, 500, 1000 years.
Philadelphia
In Philadelphia mid-August 2018, heavy rain over a weekend combined with downpours Monday morning made some roadways impassable and others treacherous for motorists across the Delaware Valley.
Up to 3 feet (91 cm) of water gathered on some streets, causing cars to float away and people having to be rescued by boat from homes and stranded cars.
Both datasets contain fluvial and pluvial undefended data.
Standard data contains 3 layers for return periods of 20, 50 and 100 years.
Extended data contains 10 layers. Everything in standard data, and return periods for 5, 10, 75, 200, 250, 500, 1000 years.
Savannah
Towards the end of July 2018, Savannah Georgia was subjected to flooding equivalent to a one in 50-year event. Roads and low lying homes were flooded and drivers had to be rescued from stranded cars.
Both datasets contain fluvial and pluvial undefended data.
Standard data contains 3 layers for return periods of 20, 50 and 100 years.
Extended data contains 10 layers. Everything in standard data, and return periods for 5, 10, 75, 200, 250, 500, 1000 years.
Seattle
Seattle has been collecting rainfall data through a network of rain gauges since the late 1970s. A storm that was previously expected only once in 100 years is now likely in 25 years.
One of the worst events on record occurred in early December of 2007 when two storms flooded the Washington and Oregon coasts and brought wind gusts that topped 100 miles per hour (160.9 km/h). Seattle registered 5.61 inches (14.2 cm) of rain in only 24 hours.
Both datasets contain fluvial and pluvial undefended data.
Standard data contains 3 layers for return periods of 20, 50 and 100 years.
Extended data contains 10 layers. Everything in standard data, and return periods for 5, 10, 75, 200, 250, 500, 1000 years.
Washington
August 2018, Washington D.C. Metro area was hit by severe storms causing blocked roads and the need for drivers to be rescued from automobiles.
In 2003 Hurricane Isabelle caused catastrophic flooding.
Both datasets contain fluvial and pluvial undefended data.
Standard data contains 3 layers for return periods of 20, 50 and 100 years.
Extended data contains 10 layers. Everything in standard data, and return periods for 5, 10, 75, 200, 250, 500, 1000 years.
