Overall Green alert Tropical Cyclone for DIANE-20
in Mauritius

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 112 km/h
Maximum storm surge 0.2 m (24 Jan 23:00 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 133 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)

Wind

112 km/h

No people by wind speeds of Tropical Storm strength or above



Wind exposed population

No exposed population (in Tropical Storm or higher) based on the bulletin of 27 Jan 2020 06:00 UTC (Overall situation)

See TC classification SSHS


Wind Impact Timeline

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


Alert 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 83 - - - - - - -
GREEN 5 25 Jan 2020 18:00 101 - - - - - - -
GREEN 6 26 Jan 2020 00:00 112 - - - - - - -
GREEN 7 26 Jan 2020 06:00 112 - - - - - - -
GREEN 8 26 Jan 2020 12:00 108 - - - - - - -
GREEN 9 26 Jan 2020 18:00 104 - - - - - - -
GREEN 10 27 Jan 2020 00:00 94 - - - - - - -
GREEN 11 27 Jan 2020 06:00 83 - - - - - - -




Impact estimation for the next 72h





Rain exposed population

No exposed population (greater than 50mm) based on the bulletin of 27 Jan 2020 06:00 UTC (Overall situation)

Rain Impact Timeline

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


Alert 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 12:00 101 - - - - - - -
Blue 5 25 Jan 2020 18:00 157 - - - - - - -
Blue 6 26 Jan 2020 00:00 188 - - - - - - -
Blue 7 26 Jan 2020 06:00 84 - - - - - - -
Blue 8 26 Jan 2020 12:00 154 - - - - - - -
Blue 9 26 Jan 2020 18:00 109 - - - - - - -
Blue 10 27 Jan 2020 00:00 115 - - - - - - -
Blue 11 27 Jan 2020 06:00 133 - - - - - - -




Impact estimation for the next 72h

StormSurge

0.2 m

The maximum Storm surge height is  0.2m in Trou aux Biches, Mauritius. This height is estimated for 24 Jan 2020 23:00 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.

Calculation based on the bulletin of 27 Jan 2020 06:00 UTC (Overall situation)
Alert Date (UTC) Name Country Storm surge height (m)
24 Jan 2020 23:00 Trou aux Biches Mauritius  0.2
24 Jan 2020 23:00 Saint-Antoine Mauritius  0.2
24 Jan 2020 20:30 Riviere du Rempart Mauritius  0.2
24 Jan 2020 20:30 Maheboug Mauritius  0.2
24 Jan 2020 20:30 Grande Reviere Sud Est Mauritius  0.2
28 Jan 2020 14:45 La Ferme Mauritius  0.2
28 Jan 2020 14:45 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
25 Jan 2020 02:30 Riche-en-Eau Mauritius  0.1
24 Jan 2020 19:30 Port Louis Mauritius  0.1
24 Jan 2020 19:30 Black River Mauritius  0.1
24 Jan 2020 19:30 Choisy Mauritius  0.1
24 Jan 2020 19:30 Chemin Grenier Mauritius  0.1
25 Jan 2020 02:30 Souillac Mauritius  0.1
26 Jan 2020 17:45 Point Marianne British Indian Ocean Territory  0.1
26 Jan 2020 17:45 East Point Plantation British Indian Ocean Territory  0.1
24 Jan 2020 19:30 Bras-Panon Reunion  0.1
24 Jan 2020 19:30 Saint-Benoit Reunion  0.1
24 Jan 2020 19:30 Sainte-Rose Reunion  0.1
24 Jan 2020 19:30 Cascades Reunion  0.1
24 Jan 2020 19:30 Saint-Philippe Reunion  0.1
24 Jan 2020 19:00 Saint-Paul Reunion  0.1
24 Jan 2020 19:00 Saint-Leu Reunion  0.1
24 Jan 2020 19:00 Trois Bassins Reunion  0.1
24 Jan 2020 19:00 Le Port Reunion  0.1
29 Jan 2020 03:30 Les Avirons Reunion  0.1
29 Jan 2020 03:30 Etang Sale Reunion  0.1
29 Jan 2020 03:30 Saint-Louis Reunion  0.1
29 Jan 2020 03:30 Saint-Pierre Reunion  0.1
29 Jan 2020 03:30 Petite Ile Reunion  0.1
29 Jan 2020 03:30 Saint-Joseph Reunion  0.1

Calculation folder at this link