Overall Green alert Tropical Cyclone for DIANE-20
in Mauritius
25 Jan 2020 12 UTC
click on to select bulletin time
Impact Single TC
Impact based on all weather systems in the area

Impact

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

Meteorological source GFS
Exposed countries
Exposed population No people in Category 1 or higher
Maximum wind speed 83 km/h
Maximum storm surge 0.2 m (25 Jan 17:00 UTC)
Vulnerability Medium (Mauritius)

GDACS Score

GDACS alert score for Tropical Cyclones is 0.5 (GREEN Alert), 1.5 (ORANGE Alert), 2.5 (RED Alert)
For more info on GDACS alert score click here.
  Wind Storm surge Rainfall GDACS score
GFS Current 83 km/h 0.2 m 101 mm 0.5
GFS Overall 112 km/h 0.2 m 404 mm 0.5

Maximum winds, storm surge, rainfall (Current: over the next 72 h, Overall: entire TC track)

TOP

Wind

112 km/h

No people by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

No exposed population (in Tropical Storm or higher) based on the bulletin of 25 Jan 2020 12:00 UTC

See TC classification SSHS


Wind Impact Timeline

people affected <=10000
10000< people affected <=100000
people affected >100000


Alert N° Date (UTC) Max Winds (km/h) Pop in Cat. 1 or higher TS Cat. 1 Cat. 2 Cat. 3 Cat. 4 Cat. 5 Countries
GREEN 1 24 Jan 2020 18:00 108 - - - - - - -
GREEN 2 25 Jan 2020 00:00 76 - - - - - - -
GREEN 3 25 Jan 2020 06:00 72 - - - - - - -
GREEN 4 25 Jan 2020 12:00 119 - - - - - - -
Download:





Impact estimation for the next 72h
TOP

Rainfall





Rain exposed population - AoIs

No exposed population (greater than 50mm) based on the bulletin of 25 Jan 2020 12:00 UTC

Rain Impact Timeline

people affected <=10000
10000< people affected <=100000
people affected >100000


Alert N° Date (UTC) Max Rainfall (mm) Pop >100mm or higher 50-100 100-250 250-500 500-750 750-1000 >1000 Countries
Blue 1 24 Jan 2020 18:00 133 - - - - - - -
Blue 2 25 Jan 2020 00:00 100 - - - - - - -
Blue 3 25 Jan 2020 06:00 124 - - - - - - -
Blue 4 25 Jan 2020 12:00 324 - - - - - - -




Impact estimation for the next 72h
TOP

StormSurge

0.2 m

The maximum Storm surge height is  0.2m in La Ferme, Mauritius. This height is estimated for 25 Jan 2020 17:00 UTC .

The JRC has developed an experimental global storm surge model, which is run after each advisory issued by the regional tropical cyclone centres. The calculations are published about 20 minutes after a new advisory is detected by GDACS. The calculations identify the populated places affected by storm surge up to three days in advance, using the forecasted track. When forecasts change, the associated storm surge changes too and alert levels may go up or down. All links, data, statistics and maps refer to the latest available calculation. If the calculation for the last advisory is not completed, the latest available calculation is shown.

Storm Surge Exposed population - AoIs


Storm Surge Exposed locations

Calculation based on the bulletin of 25 Jan 2020 12:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
25 Jan 2020 17:00 La Ferme Mauritius  0.2
25 Jan 2020 17:00 Port Mathurin Mauritius  0.2
25 Jan 2020 15:30 La Possession Reunion  0.2
25 Jan 2020 15:30 Saint-Denis Reunion  0.2
25 Jan 2020 15:30 Saint-Marie Reunion  0.2
25 Jan 2020 15:30 Sainte-Suzanne Reunion  0.2
25 Jan 2020 15:30 Saint-Andre Reunion  0.2
27 Jan 2020 17:45 Point Marianne British Indian Ocean Territory  0.1
27 Jan 2020 17:45 East Point Plantation British Indian Ocean Territory  0.1
26 Jan 2020 15:00 Trou aux Biches Mauritius  0.1
26 Jan 2020 15:00 Saint-Antoine Mauritius  0.1
25 Jan 2020 15:30 Riviere du Rempart Mauritius  0.1
25 Jan 2020 15:45 Maheboug Mauritius  0.1
25 Jan 2020 15:45 Grande Reviere Sud Est Mauritius  0.1
25 Jan 2020 15:30 Port Louis Mauritius  0.1
25 Jan 2020 15:30 Black River Mauritius  0.1
25 Jan 2020 15:30 Choisy Mauritius  0.1
25 Jan 2020 15:30 Chemin Grenier Mauritius  0.1
25 Jan 2020 15:30 Bras-Panon Reunion  0.1
25 Jan 2020 15:30 Saint-Benoit Reunion  0.1
25 Jan 2020 15:30 Saint-Paul Reunion  0.1
25 Jan 2020 15:30 Le Port Reunion  0.1
25 Jan 2020 15:30 Souillac Mauritius  0.1
25 Jan 2020 15:30 Sainte-Rose Reunion  0.1
25 Jan 2020 15:30 Cascades Reunion  0.1