Overall Green alert Tropical Cyclone for MARCO-20
in United States, Mexico, Cuba, Honduras, Nicaragua

Event summary

Tropical Cyclone MARCO-20 can have a low humanitarian impact based on the maximum sustained wind speed, exposed population and vulnerability.

GDACS ID TC 1000701
Name MARCO-20
From - To 20 Aug - 25 Aug
Exposed countries United States, Mexico, Cuba, Honduras, Nicaragua
Exposed population No people in Category 1 or higher
Maximum wind speed 120 km/h Category 1
Maximum storm surge 1.2 m (25 Aug 04:00 UTC)
Vulnerability Medium (Mexico)

GDACS Score

For more info on GDACS alert score click here.
Wind Storm surge Rainfall GDACS score
GDACS NOAA 46 km/h 1.2 m n.a. 0.5
Single TC: maximum expected impact (wind, storm surge, rainfall)
HWRF 230 km/h 2 m 759 mm 0.5
GFS 194 km/h 4 m 411 mm 0.5
ECMWF 202 km/h 3.9 m 531 mm 0.5
Maximum expected impact (wind, storm surge and rainfall) using different data sources.
Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
Nicaragua, Honduras, Mexico - Tropical Depression FOURTEEN (ECHO 21 Aug 2020)Fri, 21 Aug 2020 13:06

  • New Tropical Depression FOURTEEN is moving north-west across the Caribbean, towards the eastern coast of Nicaragua and Honduras, approximately 160 km north-east of Puerto Cabezas Municipality (Nicaragua), and 170 km south-east of Puerto Lempira Municipality (Honduras), with maximum sustained winds of 56 km/h.
  • FOURTEEN is forecast to strengthen to a tropical storm, with maximum sustained winds up to 65 km/h, passing very close to the southern coast of Honduras before reaching Quintana Roo State (Mexico, Yucatan Peninsula) on 23 August, as a Category 1 Hurricane.
  • A tropical storm warning is in effect for the southern coast of Honduras and northern coast of Nicaragua, for Bay Islands (Honduras), and for coastal areas from Punta Herrero to Cancun (Mexico), where a hurricane watch has been issued.
USA - Tropical Cyclone MARCO (ECHO 24 Aug 2020)Mon, 24 Aug 2020 13:10

  • Tropical Cyclone MARCO is moving north over the Gulf of Mexico as a tropical storm. On 24 August at 3.00 UTC, its centre was approximately 350 km south-east of Grand Isle (southern Louisiana), with maximum sustained winds of 110 km/h.
  • MARCO is forecast to move west-north-west making landfall over the southern coast of Louisiana, close to Timalier Bay, on 24-25 August, with maximum sustained winds up to 110 km/h.
  • A state of emergency has been declared for Louisiana and Texas as Tropical Cyclones MARCO and LAURA converge.
  • A hurricane warning has been issued for coastal areas from central to eastern Louisiana, including New Orleans. Storm surge warnings are in effect for coastal Louisiana and a tropical storm warning from eastern Louisiana to the Mississippi-Alabama City. 
Detailed event map. European Union, 2024. 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

Articles: 2529 | About casualties: 91 | Last hour: 0

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Remembering KatrinaSat, 29 Aug 2020 07:45:00 +0200.

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A wobble, luck and preparations lessened Laura's devastationSat, 29 Aug 2020 07:12:00 +0200.

LAKE CHARLES, La. (AP) — Hurricane Laura was a monster storm that could have, even should have, wreaked much more destruction than it did, except for a few lucky breaks and some smart thinking by Gulf Coast residents, experts say. Just befo
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A wobble, luck and preparations lessened Laura’s devastationSat, 29 Aug 2020 07:11:00 +0200.

LAKE CHARLES, La. (AP) — Hurricane Laura was a monster storm that could have, even should have, wreaked much more destruction than it did, except for a few lucky breaks and some smart thinking by Gulf Coast residents, experts say. Just befo
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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 (38), (2), DesInventar (1), WMO (1), INFORM (2),