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.

Updated: this report is based on advisory number 44: (25 Aug 2021 12:49).

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 n.a.
Vulnerability High (Marshall Is.)

Weather forecast centres

Regional Specialized Meteorological Centres (RSMCs), Tropical Cyclone Warning Centres (TCWCs).


RSMC Tokyo-Typhoon Center/Japan Meteorological Agency

National Meteorological and Hydrological Services (NMHSs)


Source: NOAA-GFS(Meteo); GDACS/JTWC (TcTrack )

Source: NOAA-GFS(Meteo); GDACS/JTWC (TcTrack )

Source: NOAA-GFS(Meteo); GDACS/JTWC (TcTrack )

Source: NOAA-GFS(Meteo); GDACS/JTWC (TcTrack )

Source: NOAA-GFS

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