Overall Green alert Tropical Cyclone for JOBO-21
in Tanzania, Seychelles
23 Apr 2021 00 UTC
click on to select bulletin time
Impact Single TC
Impact based on all weather systems in the area

Impact

Tropical Cyclone JOBO-21 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 101 km/h
Maximum storm surge 0.1 m (24 Apr 16:30 UTC)
Vulnerability Medium (Tanzania)

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 101 km/h 0.1 m 106 mm 0.5
GFS Overall 130 km/h 0.2 m 527 mm 0.5

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

TOP

Wind

130 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 23 Apr 2021 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 21 Apr 2021 00:00 86 -
- - - - - Seychelles
GREEN 2 21 Apr 2021 06:00 94 -
- - - - - Seychelles
GREEN 3 21 Apr 2021 12:00 130 -
- - - - - Seychelles
GREEN 4 21 Apr 2021 18:00 101 -
- - - - - Seychelles
GREEN 5 22 Apr 2021 00:00 115 -
- - - - - Seychelles
GREEN 6 22 Apr 2021 06:00 112 - - - - - - -
GREEN 7 22 Apr 2021 12:00 119 - - - - - - -
GREEN 8 22 Apr 2021 18:00 108 - - - - - - -
GREEN 9 23 Apr 2021 00:00 101 - - - - - - -
Download:





Impact estimation for the next 72h
TOP

Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 23 Apr 2021 00:00 UTC
LevelCountryPopulation 
50-100 mmTanzania, Mozambique, Madagascar130,916
+
Tanzania98,823 
Mozambique31,992 
Madagascar101 

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 21 Apr 2021 00:00 72 - - - - - - -
Blue 2 21 Apr 2021 06:00 64 -
- - - - - Seychelles
Blue 3 21 Apr 2021 12:00 129 -
- - - - - Seychelles
Blue 4 21 Apr 2021 18:00 136 -
- - - - - Seychelles
Blue 5 22 Apr 2021 00:00 210 - - - - - - -
Blue 6 22 Apr 2021 06:00 208 - - - - - - -
Blue 7 22 Apr 2021 12:00 174 - - - - - - -
Blue 8 22 Apr 2021 18:00 190 - - - - - - -
Blue 9 23 Apr 2021 00:00 225 -
- - - - - Tanzania, Mozambique, Madagascar




Impact estimation for the next 72h
TOP

StormSurge

0.1 m

The maximum Storm surge height is  0.1m in Magawa, Tanzania. This height is estimated for 24 Apr 2021 16:30 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 23 Apr 2021 00:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
24 Apr 2021 16:30 Magawa Tanzania  0.1
24 Apr 2021 16:30 Msindaji Tanzania  0.1
24 Apr 2021 16:30 Dondo Tanzania  0.1
24 Apr 2021 16:30 Kisiju Tanzania  0.1
24 Apr 2021 17:00 Mpafu Tanzania  0.1
24 Apr 2021 17:00 Buuni Village Tanzania  0.1
23 Apr 2021 06:45 Mchungu Tanzania  0.1
23 Apr 2021 12:45 Mkwaja Tanzania  0.1
23 Apr 2021 15:30 Somanga Tanzania  0.1
23 Apr 2021 15:30 Pombwe Tanzania  0.1
23 Apr 2021 15:30 Jaja Tanzania  0.1