Overall Green alert Flood
in United States

Event summary

Flood can have a low humanitarian impact based on the magnitude, exposed population and vulnerability.

GDACS ID FL 1102075
Death: 5
Displaced: 14525
Countries: United States
From - To 16 Jun - 24 Aug

GDACS Score

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Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
USA - Floods (ECHO 11 Jul 2023)Tue, 11 Jul 2023 10:13

  • Heavy rainfall has been affecting the Northeast Region of the USA (in particular New York, New Jersey and Pennsylvania States) since 9 July, causing floods that have resulted in casualties and damage.
  • Media report, as of 11 July, one fatality in the Orange County (south-eastern New York State, bordering with Pennsylvania State), two injured people across the Westchester County (south-eastern New York State) and several rescued people in the Ontario County (western New York State). In addition, an unconfirmed number of evacuated people were reported across the Berks County (south-eastern Pennsylvania State).
  • Over the next 24 hours, more heavy rainfall and thunderstorms are forecast over most of New York and New Jersey and over northern Pennsylvania. NOAA has issued a number of Flash Flood and Flood Warnings over this area.
USA - Severe weather (ECHO 09 Aug 2023)Wed, 09 Aug 2023 10:31

  • Heavy rainfall, strong winds and tornadoes have been affecting the eastern States of the USA from Alabama and Tennessee to the Carolinas and New York, resulting in casualties and damage.
  • According to media reports, at least two people died, one in South Carolina and another in Alabama following two severe weather related incidents. Widespread damage has been recorded across the affected States while 250,000 houses experienced power cuts (100,000 in North Carolina, 95,000 in Pennsylvania and 64,000 people in Maryland) and 1,000 flights have been delayed.
  • On 9-10 August, heavy rain and thunderstorms are still forecast over the eastern and particularly over the north-eastern States.
Arizona, USA, Late August 2023Heavy rainfall and thunderstorms from the remnants of Tropical Storm Hilary caused flooding in northern Arizona, USA, on 22 August 2023. Flooding also occurred in southern Utah, including in St. George where the St. George Airport was temporarily closed.Thu 24 Aug 2023Provided by Copernicus EMS GloFAS
Detailed event map. European Union, 2025. Map produced by EC-JRC.
The boundaries and the names shown on this map do not imply official endorsement or acceptance by the European Union.

Updates on volcanic activity (Smithsonian)

Latest media headlines

Storm Hilary Forces Closure of LA and San Diego Area Schools: Stay Saf.. 8/26/2023 10:24:00 AM.

2023-08-22 09:31:00. Los Angeles and San Diego area schools are closed Monday as Hilary floods California. The second largest school district in the United States will close Monday due to Storm Hilary, which is now a post-tropical cyclone,
...(more)
Dead in tornadoes and storms in the US state of Michigan 8/26/2023 1:28:00 AM.

2023-08-25T23:27:33.133Z. Highlights: At least five people have been killed after a tornado and severe thunderstorms swept through the US state of Michigan. The cyclone cut off the highway, killing one person and injuring 3 others after sev
...(more)
CDC studies reveal that Canada wildfire smoke led to a significant inc.. 8/25/2023 6:24:00 PM.

The Statue of Liberty is seen June 7 through a haze-filled sky from the Staten Island Ferry in New York. The smoke from Canadian wildfires that drifted into the U.S. led to a spike in people with asthma visiting emergency rooms — particular
...(more)
Triple-I Offers Floridians Preparedness Tips for Tropical System Impac.. 8/25/2023 5:19:00 PM.

ST. JOHNS, Fla.--(BUSINESS WIRE)--Aug 25, 2023-- Floridians should be on alert for the impacts of a tropical depression that the National Hurricane Center said Friday morning could form as soon as this weekend in the western Gulf of Mexico
...(more)

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Estimated casualties (PAGER)

USGS estimates the number of casualties for each earthquake for the Prompt Assessment of Global Earthquakes for Response (PAGER) product.
The graph shows the current fatalities estimate.

Exposed population

Data, images, links, services and documents

For this events, GDACS has links to information from the following sources: EC-JRC (36), (2), NASA (4), WMO (1), INFORM (2),