Overall Green alert Tropical Cyclone for OMAIS-21
in Japan, Marshall Islands

Event summary

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

GDACS ID TC 1000813
Name OMAIS-21
From - To 10 Aug - 23 Aug
Exposed countries Japan, Marshall Islands
Exposed population No people in Category 1 or higher
Maximum wind speed 93 km/h Tropical storm
Maximum storm surge
Vulnerability High (Marshall Is.)

GDACS Score

For more info on GDACS alert score click here.
Wind Storm surge Rainfall GDACS score
GDACS JTWC 46 km/h 0 m n.a. 0.5
Single TC: maximum expected impact (wind, storm surge, rainfall)
HWRF 83 km/h 0.2 m 425 mm 0.5
GFS 108 km/h 2.2 m 1228 mm 0.5
ECMWF 101 km/h 2.9 m 211 mm 0.5
Maximum expected impact (wind, storm surge and rainfall) using different data sources.
Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
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: 47 | About casualties: 0 | Last hour: 0

South Korea – Typhoon Omais Dumps 98mm of Rain in 1 Hour2021-08-25T16:08+0200.

Typhoon Omais made landfall in South Korea late on 23 August 2021. Heavy rain flooded roads, railways and homes and threatened landslides which prompted some evacuations but there were no reports of injuries or casualties. Track of Typhoon
...(more)
More Rain in the Offing as Typhoon Omais Recedes2021-08-25T05:42+0200.

Korea is expected to see more rain this week after typhoon Omais recedes. According to the Korea Meteorological Administration, a seasonal monsoon will reach the country on Wednesday, bringing up to 80 mm of rain to the Chungcheong and Jeol
...(more)
Dozens of Flights, Shipping Routes Canceled due to Typhoon Omais2021-08-25T00:26+0200.

According to the Central Disaster and Safety Countermeasures Headquarters, 86 domestic flights were canceled as of 6 a.m. Tuesday, including 35 at Jeju International Airport and 31 at Gimpo International Airport. Also as of 6 a.m. some 70 p
...(more)
Il tifone Omais si abbatte sulla Corea del Sud: 205mm di pioggia e olt ... 2021-08-24T16:17+0200.

Con venti di oltre 65km/h e pressione di 996hPa, il tifone Omais è il primo tifone stagionale a raggiungere la Corea del Sud . Le città di Sacheon e Geoje, nella provincia di Gyeongsang meridionale, sono state le più colpite dalle precipita
...(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 (40), (2), INFORM (2),