Overall Green alert Tropical Cyclone for SAVANNAH-19
Off-shore

Impact

Tropical Cyclone SAVANNAH-19 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source GFS
Exposed countries Cocos (Keeling) Islands, Mauritius,
Exposed population 40 thousand in Category 1 or higher
Maximum wind speed 187 km/h
Maximum storm surge 0.4 m (25 Mar 12:00 UTC)
Vulnerability --

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 GDACS score
GFS Current 187 km/h 0.4 m 1.5
GFS Overall 187 km/h 0.4 m 1.5


Impact Timeline

Legend
people affected <=10000
people affected >10000 and <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 14 Mar 2019 00:00 104 -
- - - - - Cocos (Keeling) Islands
GREEN 2 14 Mar 2019 06:00 94 - - - - - - -
GREEN 3 14 Mar 2019 12:00 94 - - - - - - -
GREEN 4 14 Mar 2019 18:00 126 - - - - - - -
GREEN 5 15 Mar 2019 00:00 130 - - - - - - -
GREEN 6 15 Mar 2019 06:00 130 - - - - - - -
GREEN 7 15 Mar 2019 12:00 122 - - - - - - -
GREEN 8 15 Mar 2019 18:00 130 - - - - - - -
GREEN 9 16 Mar 2019 00:00 115 - - - - - - -
GREEN 10 16 Mar 2019 06:00 140 - - - - - - -
GREEN 11 16 Mar 2019 12:00 144 - - - - - - -
GREEN 12 16 Mar 2019 18:00 140 - - - - - - -
GREEN 13 17 Mar 2019 00:00 133 - - - - - - -
GREEN 14 17 Mar 2019 06:00 133 - - - - - - -
GREEN 15 17 Mar 2019 12:00 158 - - - - - - -
GREEN 16 17 Mar 2019 18:00 148 - - - - - - -
GREEN 17 18 Mar 2019 00:00 133 - - - - - - -
GREEN 18 18 Mar 2019 06:00 126 - - - - - - -
GREEN 19 18 Mar 2019 12:00 104 - - - - - - -
GREEN 20 18 Mar 2019 18:00 83 - - - - - - -
GREEN 21 19 Mar 2019 00:00 76 - - - - - - -
GREEN 22 19 Mar 2019 06:00 133 - - - - - - -
GREEN 23 19 Mar 2019 12:00 137 - - - - - - -
GREEN 24 19 Mar 2019 18:00 104 - - - - - - -
GREEN 25 20 Mar 2019 00:00 151 - - - - - - -
GREEN 26 20 Mar 2019 06:00 184 -
- - - - - Mauritius
GREEN 27 20 Mar 2019 12:00 180 -
- - - - - Mauritius, Other countries
GREEN 28 20 Mar 2019 18:00 187 -
- - - - - Mauritius, Other countries
GREEN 29 21 Mar 2019 00:00 191 -
- - - - - Mauritius, Other countries
GREEN 30 21 Mar 2019 06:00 176 -
- - - - - Mauritius, Other countries
GREEN 31 21 Mar 2019 12:00 184 -
- - - - - Mauritius, Other countries
GREEN 32 21 Mar 2019 18:00 184 -
- - - - - Mauritius, Other countries
GREEN 33 22 Mar 2019 00:00 198 20 thousand
- - - - Mauritius, Other countries
GREEN 34 22 Mar 2019 06:00 184 -
- - - - - Mauritius, Other countries
ORANGE 35 22 Mar 2019 12:00 187 40 thousand -
- - - - Mauritius, Other countries





Wind exposed population

Estimations based on the bulletin of 22 Mar 2019 12:00 UTC (final)
CategoryCountryPopulation
CAT. 1Mauritius43361
CAT. 1Other countries147
TSCocos (Keeling) Islands596

Rainfall

Rainfall accumulation of the past 24h, as detected by the Global Precipitation Measurement mission of NASA. For more information, see https://www.nasa.gov/mission_pages/GPM/main/index.html.

...

StormSurge

0.4 m

The maximum Storm surge height is  0.4m in La Ferme, Mauritius. This height is estimated for 25 Mar 2019 12:00 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 22 Mar 2019 12:00 UTC (final)
Alert Date (UTC) Name Country Storm surge height (m)
25 Mar 2019 12:00 La Ferme Mauritius  0.4
25 Mar 2019 12:00 Port Mathurin Mauritius  0.4
21 Mar 2019 11:15 West Island Cocos (Keeling) Islands  0.2
17 Mar 2019 15:00 Point Marianne British Indian Ocean Territory  0.2
17 Mar 2019 15:00 East Point Plantation British Indian Ocean Territory  0.2

Calculation folder at this link