Overall Red alert Tropical Cyclone for FREDDY-23
in Mozambique, Madagascar
07 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 ECMWF
Exposed countries
Exposed population No people in Category 1 or higher
Maximum wind speed 79 km/h
Maximum storm surge 0.6 m (07 Feb 10:30 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
ECMWF Current 79 km/h 0.6 m 174 mm 0.5
ECMWF Overall 112 km/h 0.7 m 1634 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 07 Feb 2023 00:00 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 05 Feb 2023 12:00 61 - - - - - - -
GREEN 2 06 Feb 2023 00:00 54 - - - - - - -
GREEN 3 06 Feb 2023 12:00 68 - - - - - - -
GREEN 4 07 Feb 2023 00:00 140 - - - - - - -
Download:





Impact estimation for the next 72h
TOP

Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 07 Feb 2023 00:00 UTC
LevelCountryPopulation 
250-500 mmIndonesia32,013 
100-250 mmTanzania, Indonesia, Mozambique, Comoros, Malawi, Zambia, Madagascar, South Africa, Lesotho3,439,822
+
Indonesia3,228,670 
Tanzania4,527 
Malawi3,090 
Mozambique824 
Zambia5,261 
Comoros15,333 
Madagascar40,286 
South Africa137,065 
Lesotho4,761 
50-100 mmIndonesia, Burundi, Tanzania, East Timor, Democratic Republic of the Congo, Malawi, Mozambique, Zambia, Comoros, Angola, Madagascar, Zimbabwe, Reunion, South Africa, Eswatini, Lesotho75,034,022
+
Indonesia54,354,650 
Burundi34,487 
Tanzania679,196 
East Timor79,284 
Democratic Republic of the Congo32,991 
Malawi1,108,644 
Mozambique3,852,337 
Zambia2,796,737 
Comoros25,677 
Angola646 
Madagascar2,812,380 
Zimbabwe9,420 
Reunion41,148 
South Africa7,336,584 
Eswatini572,029 
Lesotho1,297,804 

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 05 Feb 2023 12:00 203 -
- - - - - Indonesia
Blue 2 06 Feb 2023 00:00 94 -
- - - - - Indonesia
Blue 3 06 Feb 2023 12:00 217 - - - - - - -
Blue 4 07 Feb 2023 00:00 446 3.5 million
- - - Indonesia, Burundi, Tanzania, East Timor, Democratic Republic of the Congo, Malawi, Mozambique, Zambia, Comoros, Angola, Madagascar, Zimbabwe, Reunion, South Africa, Eswatini, Lesotho




Impact estimation for the next 72h
TOP

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

0.6 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 07 Feb 2023 00:00 UTC