Overall Green Tropical Cyclone alert for TWENTYONE-20 in Australia from 11 Mar 2020 06:00 UTC to 18:00

Event summary

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

GDACS ID	TC 1000659
Name	TWENTYONE-20
From - To	11 Mar - 11 Mar
Exposed countries	Australia
Exposed population	No people in Category 1 or higher
Maximum wind speed	65 km/h Tropical storm
Maximum storm surge	0.6 m (11 Mar 17:00 UTC)
Vulnerability	Low (Australia)

GDACS Score

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	Wind	Storm surge	Rainfall	GDACS score
GDACS JTWC	65 km/h	0.6 m	n.a.	0.5
Single TC: maximum expected impact (wind, storm surge, rainfall)
HWRF	83 km/h	0.4 m	430 mm	0.5
GFS	65 km/h	0.4 m	154 mm	0.5
ECMWF	101 km/h	0.4 m	211 mm	0.5

Maximum expected impact (wind, storm surge and rainfall) using different data sources.

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Australia - Tropical Cyclone TWENTYONE (ECHO 12 Mar 2020)Thu, 12 Mar 2020 11:06

Tropical Cyclone TWENTYONE formed over eastern Indian Ocean on 11 March and started moving towards north-west Western Australia. On 11 March at 18.00 UTC, its centre was located approximately 260 km north of Barrow Island, with maximum sustained winds of 65 km/h (tropical storm).
TWENTYONE is expected to make landfall over Shire of Exmouth on the evening of 12 March as a tropical depression.
Over the next 24 hours, heavy rain, strong winds and storm surge are forecast over north-west Gascoyne Region.
The Bureau of Meteorology (BOM) has issued a warning zone for severe weather over the area.

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For this events, GDACS has links to information from the following sources: EC-JRC (38), (2), WMO (1), INFORM (2),

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