Overall Green alert Tropical Cyclone for SANVU-23
Off-shore
22 Apr 2023 18 UTC
click on to select bulletin time
Impact Single TC
Impact based on all weather systems in the area

Impact

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

Meteorological source GFS
Exposed countries Micronesia
Exposed population No people in Category 1 or higher
Maximum wind speed 104 km/h
Maximum storm surge 0.4 m (19 Apr 21:30 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 Rainfall GDACS score
GFS Current 104 km/h 0.4 m 571 mm 0.5
GFS Overall 104 km/h 0.4 m 571 mm 0.5

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

TOP

Wind

104 km/h

Up to 40 thousand can be affected by wind speeds of Tropical Storm strength or above



Wind exposed population - AoIs

Estimations based on the bulletin of 22 Apr 2023 18:00 UTC (Overall situation)
CategoryCountryPopulation 
Tropical StormMicronesia36,730 

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 19 Apr 2023 12:00 58 - - - - - - -
GREEN 2 19 Apr 2023 18:00 104 -
- - - - - Micronesia
GREEN 3 20 Apr 2023 00:00 101 -
- - - - - Micronesia
GREEN 4 20 Apr 2023 06:00 76 - - - - - - -
GREEN 5 20 Apr 2023 12:00 72 - - - - - - -
GREEN 6 20 Apr 2023 18:00 94 - - - - - - -
GREEN 7 21 Apr 2023 00:00 79 - - - - - - -
GREEN 8 21 Apr 2023 06:00 76 - - - - - - -
GREEN 9 21 Apr 2023 12:00 90 - - - - - - -
GREEN 10 21 Apr 2023 18:00 83 - - - - - - -
GREEN 11 22 Apr 2023 00:00 61 - - - - - - -
GREEN 12 22 Apr 2023 06:00 50 - - - - - - -
GREEN 13 22 Apr 2023 12:00 47 - - - - - - -
GREEN 14 22 Apr 2023 18:00 50 - - - - - - -
Download:





Impact estimation for the next 72h
TOP

Rainfall





Rain exposed population - AoIs

Estimations based on the bulletin of 22 Apr 2023 18:00 UTC (Overall situation)
LevelCountryPopulation 
100-250 mmMarshall Islands, Micronesia44,940
+
Marshall Islands1,655 
Micronesia43,284 
50-100 mmGuam, Marshall Islands, Micronesia, Kiribati104,550
+
Guam11,064 
Marshall Islands50,075 
Micronesia43,114 
Kiribati296 

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 19 Apr 2023 12:00 78 - - - - - - -
Blue 2 19 Apr 2023 18:00 140 -
- - - - - Micronesia
Blue 3 20 Apr 2023 00:00 60 - - - - - - -
Blue 4 20 Apr 2023 06:00 51 - - - - - - -
Blue 5 20 Apr 2023 12:00 107 - - - - - - -
Blue 6 20 Apr 2023 18:00 94 - - - - - - -
Blue 7 21 Apr 2023 00:00 101 - - - - - - -
Blue 8 21 Apr 2023 06:00 92 - - - - - - -
Blue 9 21 Apr 2023 12:00 98 - - - - - - -
Blue 10 21 Apr 2023 18:00 60 - - - - - - -
Blue 11 22 Apr 2023 00:00 139 - - - - - - -
Blue 12 22 Apr 2023 06:00 47 - - - - - - -
Blue 13 22 Apr 2023 12:00 33 - - - - - - -
Blue 14 22 Apr 2023 18:00 209 -
- - - - - Marshall Islands, Micronesia, Kiribati




Impact estimation for the next 72h
TOP

StormSurge

0.4 m

The maximum Storm surge height is  0.4m in Ronkiti, Micronesia. This height is estimated for 19 Apr 2023 21:30 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

Estimations based on the bulletin of 22 Apr 2023 18:00 UTC (Overall situation)
LevelCountryPopulation 
0.25 - 0.5 mMicronesia2,827 

Storm Surge Exposed locations

Calculation based on the bulletin of 22 Apr 2023 18:00 UTC (Overall situation)
    
Alert Date (UTC) Name Country Storm surge height (m)
19 Apr 2023 21:30 Ronkiti Micronesia  0.4
19 Apr 2023 21:30 Palikir Micronesia  0.4
19 Apr 2023 21:30 Kolonia Micronesia  0.4
19 Apr 2023 21:30 Lot Micronesia  0.4
19 Apr 2023 21:30 Metalanim Micronesia  0.4
24 Apr 2023 09:15 Colonia Micronesia  0.1
21 Apr 2023 03:15 Wotje Marshall Islands  0.1
21 Apr 2023 20:30 Ishinomura Japan  0.1
24 Apr 2023 03:15 Kaven Marshall Islands  0.1
23 Apr 2023 21:15 Higashi Japan  0.1