Overall Red alert Tropical Cyclone for FREDDY-23
in Mozambique, Madagascar
16 Feb 2023 00 UTC
click on to select bulletin time
Impact Single TC
Impact based on all weather systems in the area

Impact

Tropical Cyclone FREDDY-23 can have a high humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source GFS
Exposed countries South Africa
Exposed population No people in Category 1 or higher
Maximum wind speed 187 km/h
Maximum storm surge 0.3 m (16 Feb 00:00 UTC)
Vulnerability High (Madagascar)

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 187 km/h 0.3 m 161 mm 0.5
GFS Overall 205 km/h 0.7 m 1068 mm 0.5

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



Wind exposed population - AoIs

Estimations based on the bulletin of 16 Feb 2023 00:00 UTC
CategoryCountryPopulation 
Tropical StormSouth Africa198 

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 06 Feb 2023 06:00 101 - - - - - - -
GREEN 2 06 Feb 2023 12:00 79 - - - - - - -
GREEN 3 06 Feb 2023 18:00 104 - - - - - - -
GREEN 4 07 Feb 2023 00:00 140 - - - - - - -
GREEN 5 07 Feb 2023 06:00 140 - - - - - - -
GREEN 6 07 Feb 2023 12:00 148 - - - - - - -
GREEN 7 07 Feb 2023 18:00 158 - - - - - - -
GREEN 8 08 Feb 2023 00:00 162 - - - - - - -
GREEN 9 08 Feb 2023 06:00 151 - - - - - - -
GREEN 10 08 Feb 2023 12:00 137 - - - - - - -
GREEN 11 08 Feb 2023 18:00 137 - - - - - - -
GREEN 12 09 Feb 2023 00:00 122 - - - - - - -
GREEN 13 09 Feb 2023 06:00 101 - - - - - - -
GREEN 14 09 Feb 2023 12:00 97 - - - - - - -
GREEN 15 09 Feb 2023 18:00 101 - - - - - - -
GREEN 16 10 Feb 2023 00:00 97 - - - - - - -
GREEN 17 10 Feb 2023 06:00 122 - - - - - - -
GREEN 18 10 Feb 2023 12:00 112 - - - - - - -
GREEN 19 10 Feb 2023 18:00 148 - - - - - - -
GREEN 20 11 Feb 2023 00:00 148 - - - - - - -
GREEN 21 11 Feb 2023 06:00 140 - - - - - - -
GREEN 22 11 Feb 2023 12:00 169 -
- - - - - Australia
GREEN 23 11 Feb 2023 18:00 166 - - - - - - -
GREEN 24 12 Feb 2023 00:00 180 - - - - - - -
GREEN 25 12 Feb 2023 06:00 - 1.1 million
Indonesia, Democratic Republic of the Congo, Tanzania, East Timor, Zambia, Malawi, Madagascar, Mozambique, Zimbabwe, Australia, Botswana
GREEN 26 12 Feb 2023 12:00 155 - - - - - - -
GREEN 27 12 Feb 2023 18:00 155 - - - - - - -
GREEN 28 13 Feb 2023 00:00 166 - - - - - - -
GREEN 29 13 Feb 2023 06:00 140 - - - - - - -
GREEN 30 13 Feb 2023 12:00 133 - - - - - - -
GREEN 31 13 Feb 2023 18:00 130 - - - - - - -
GREEN 32 14 Feb 2023 00:00 126 - - - - - - -
GREEN 33 14 Feb 2023 06:00 - 1.1 million
Tanzania, Indonesia, Democratic Republic of the Congo, Zambia, Mozambique, Madagascar, Malawi, Zimbabwe, Australia, Namibia, Botswana
GREEN 34 14 Feb 2023 12:00 - 2.5 million
Indonesia, Democratic Republic of the Congo, Tanzania, East Timor, Zambia, Malawi, Mozambique, Zimbabwe, Australia, Madagascar, Botswana
GREEN 35 14 Feb 2023 18:00 144 - - - - - - -
GREEN 36 15 Feb 2023 00:00 202 - - - - - - -
GREEN 37 15 Feb 2023 06:00 173 - - - - - - -
GREEN 38 15 Feb 2023 12:00 180 - - - - - - -
GREEN 39 15 Feb 2023 18:00 191 - - - - - - -
GREEN 40 16 Feb 2023 00:00 187 -
- - - - - South Africa
Download:





Impact estimation for the next 72h

Rainfall

1068 mm

Up to 1 million can be affected by rain higher than 100mm (see SSHS)





Rain exposed population - AoIs

Estimations based on the bulletin of 16 Feb 2023 00:00 UTC
LevelCountryPopulation 
250-500 mmBotswana09 
100-250 mmIndonesia, Madagascar, Zimbabwe, Botswana, South Africa1,003,026
+
Indonesia157,990 
Madagascar2,166 
Zimbabwe162,835 
Botswana118,426 
South Africa561,608 
50-100 mmIndonesia, Democratic Republic of the Congo, Tanzania, Malawi, Zambia, Mauritius, Madagascar, Mozambique, Zimbabwe, Botswana, South Africa, Eswatini38,676,651
+
Indonesia25,451,589 
Democratic Republic of the Congo623 
Tanzania159,816 
Malawi4,204,873 
Zambia166,097 
Mauritius264 
Madagascar1,133,882 
Mozambique1,855,960 
Zimbabwe3,128,736 
Botswana537,432 
South Africa1,822,849 
Eswatini214,524 

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 06 Feb 2023 06:00 195 -
- - - - - Indonesia
Blue 2 06 Feb 2023 12:00 154 -
- - - - - Madagascar
Blue 3 06 Feb 2023 18:00 190 -
- - - - - Madagascar
Blue 4 07 Feb 2023 00:00 102 - - - - - - -
Blue 5 07 Feb 2023 06:00 232 -
- - - - - Indonesia
Blue 6 07 Feb 2023 12:00 245 -
- - - - - Indonesia, Madagascar
Blue 7 07 Feb 2023 18:00 242 - - - - - - -
Blue 8 08 Feb 2023 00:00 157 - - - - - - -
Blue 9 08 Feb 2023 06:00 307 - - - - - - -
Blue 10 08 Feb 2023 12:00 228 -
- - - - - Tanzania, Madagascar
Blue 11 08 Feb 2023 18:00 249 Few people
- - - - South Africa, Eswatini
Blue 12 09 Feb 2023 00:00 130 Few people
- - - - South Africa
Blue 13 09 Feb 2023 06:00 123 -
- - - - - Indonesia
Blue 14 09 Feb 2023 12:00 209 -
- - - - - Botswana
Blue 15 09 Feb 2023 18:00 239 -
- - - - - Madagascar, South Africa
Blue 16 10 Feb 2023 00:00 112 - - - - - - -
Blue 17 10 Feb 2023 06:00 210 - - - - - - -
Blue 18 10 Feb 2023 12:00 141 - - - - - - -
Blue 19 10 Feb 2023 18:00 215 -
- - - - - Zimbabwe
Blue 20 11 Feb 2023 00:00 155 -
- - - - - Mozambique
Blue 21 11 Feb 2023 06:00 151 -
- - - - - Mozambique, Eswatini, South Africa
Blue 22 11 Feb 2023 12:00 213 -
- - - - - Madagascar, Eswatini, South Africa
Blue 23 11 Feb 2023 18:00 266 -
- - - - - Indonesia
Blue 24 12 Feb 2023 00:00 216 -
- - - - - Malawi
Blue 25 12 Feb 2023 06:00 204 -
- - - - - Indonesia
Blue 26 12 Feb 2023 12:00 181 -
- - - - - Democratic Republic of the Congo
Blue 27 12 Feb 2023 18:00 256 -
- - - - - Indonesia, Zimbabwe
Blue 28 13 Feb 2023 00:00 128 Few people
- - - - Indonesia
Blue 29 13 Feb 2023 06:00 188 - - - - - - -
Blue 30 13 Feb 2023 12:00 204 - - - - - - -
Blue 31 13 Feb 2023 18:00 156 -
- - - - - Mozambique, Zimbabwe
Blue 32 14 Feb 2023 00:00 146 - - - - - - -
Blue 33 14 Feb 2023 06:00 135 - - - - - - -
Blue 34 14 Feb 2023 12:00 147 -
- - - - - Indonesia
Blue 35 14 Feb 2023 18:00 203 - - - - - - -
Blue 36 15 Feb 2023 00:00 132 - - - - - - -
Blue 37 15 Feb 2023 06:00 173 - - - - - - -
Blue 38 15 Feb 2023 12:00 196 -
- - - - - Democratic Republic of the Congo, Zambia
Blue 39 15 Feb 2023 18:00 201 - - - - - - -
Blue 40 16 Feb 2023 00:00 254 1 million
- - - Indonesia, Democratic Republic of the Congo, Tanzania, Malawi, Zambia, Mauritius, Madagascar, Mozambique, Zimbabwe, Botswana, South Africa, Eswatini




Impact estimation for the next 72h

StormSurge

The calculations have been performed using NAMIDANCE computer code, from Middle East Technical University.
reference: Zaytsev, Andrey; Kurkin, Andrey; Pelinovsky, Efim; Yalciner, Ahmet C. - NUMERICAL TSUNAMI MODEL NAMI-DANCE. - Science of Tsunami Hazards . Nov2019, Vol. 38 Issue 4, p151-168. 18p.
Doaj

0.3 m

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 16 Feb 2023 00:00 UTC