Overall Green Tropical Cyclone for DANNY-21
in United States

Event summary

Tropical Cyclone DANNY-21 can have a low humanitarian impact based on the maximum sustained wind speed, exposed population and vulnerability.

GDACS ID TC 1000794
Name DANNY-21
From - To 28 Jun - 29 Jun
Exposed countries United States
Exposed population No people in Category 1 or higher
Maximum wind speed 74 km/h Tropical storm
Maximum storm surge 0.6 m (28 Jun 23:00 UTC)
Vulnerability Low (United States)

GDACS Score

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Wind Storm surge Rainfall GDACS score
GDACS NOAA n.a 0.6 m n.a. 0.5
Single TC: maximum expected impact (wind, storm surge, rainfall)
HWRF 86 km/h 0.4 m 157 mm 0.5
GFS 61 km/h 0.4 m 126 mm 0.5
ECMWF 54 km/h 0.4 m 119 mm 0.5
Maximum expected impact (wind, storm surge and rainfall) using different data sources.
Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
USA - Severe weather and tropical depression DANNY (ECHO 29 Jun 2021)Tue, 29 Jun 2021 15:36

  • On 25-27 June, heavy rain with thunderstorms was reported across Kansas City (Missouri, central USA), causing floods. According to media, one person died, several houses have been damaged and thousands of residents experienced power outages. 
  • In south-eastern USA, tropical depression DANNY made landfall in the evening of 29 June over the southern coast of South Carolina. On 29 June at 3.00 UTC, its centre was located inland approximately 30 km north-east of Statesboro City (central-eastern Georgia), with maximum sustained winds of 56 km/h.
  • Flood warnings have been issued for parts of Missouri. On 29-30 June, heavy rain is forecast over most of Missouri and rain with thunderstorms is forecast over most of central and western USA, inclduing South Carolina and Georgia.
Detailed event map. European Union, 2026. 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)

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 (38), WMO (1), INFORM (2), (1),