Overall Green alert Tropical Cyclone for OMAIS-21
in Japan, Marshall Islands

Impact

Tropical Cyclone OMAIS-21 can have a low humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source HWRF
Exposed countries
Exposed population No people in Category 1 or higher
Maximum wind speed 83 km/h
Maximum storm surge 0.2 m (15 Aug 13:00 UTC)
Vulnerability High (Marshall Is.)

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
HWRF Current 83 km/h 0.2 m 424 mm 0.5
HWRF Overall 83 km/h 0.2 m 425 mm 0.5

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

Wind

83 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 13 Aug 2021 00:00 UTC

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 10 Aug 2021 12:00 68 - - - - - - -
GREEN 2 10 Aug 2021 18:00 68 - - - - - - -
GREEN 3 11 Aug 2021 00:00 65 - - - - - - -
GREEN 4 11 Aug 2021 06:00 61 - - - - - - -
GREEN 5 11 Aug 2021 12:00 68 - - - - - - -
GREEN 6 11 Aug 2021 18:00 79 - - - - - - -
GREEN 7 12 Aug 2021 00:00 50 - - - - - - -
GREEN 8 12 Aug 2021 06:00 50 - - - - - - -
GREEN 9 12 Aug 2021 12:00 58 - - - - - - -
GREEN 10 12 Aug 2021 18:00 61 - - - - - - -
GREEN 11 13 Aug 2021 00:00 83 - - - - - - -




Impact estimation for the next 72h
Download:





Rain exposed population - AoIs

Estimations based on the bulletin of 13 Aug 2021 00:00 UTC
LevelCountryPopulation 
100-250 mmMarshall Islands15 
50-100 mmMarshall Islands82 

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 10 Aug 2021 12:00 220 - - - - - - -
Blue 2 10 Aug 2021 18:00 278 - - - - - - -
Blue 3 11 Aug 2021 00:00 160 - - - - - - -
Blue 4 11 Aug 2021 06:00 212 - - - - - - -
Blue 5 11 Aug 2021 12:00 158 - - - - - - -
Blue 6 11 Aug 2021 18:00 122 - - - - - - -
Blue 7 12 Aug 2021 00:00 21 - - - - - - -
Blue 8 12 Aug 2021 06:00 12 - - - - - - -
Blue 9 12 Aug 2021 12:00 92 - - - - - - -
Blue 10 12 Aug 2021 18:00 188 - - - - - - -
Blue 11 13 Aug 2021 00:00 424 Few people
- - - - Marshall Islands




Impact estimation for the next 72h

StormSurge

0.2 m

The maximum Storm surge height is  0.2m in Colonia, Micronesia. This height is estimated for 15 Aug 2021 13:00 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.

Storm Surge Exposed locations

Calculation based on the bulletin of 13 Aug 2021 00:00 UTC
    
Alert Date (UTC) Name Country Storm surge height (m)
15 Aug 2021 13:00 Colonia Micronesia  0.2
15 Aug 2021 19:00 Wotje Marshall Islands  0.2
15 Aug 2021 18:30 Kaven Marshall Islands  0.2
15 Aug 2021 12:45 Afetna Northern Mariana Islands  0.2
15 Aug 2021 12:45 Susupi Northern Mariana Islands  0.2
15 Aug 2021 12:45 Laolao Northern Mariana Islands  0.2
15 Aug 2021 12:45 Garapan Northern Mariana Islands  0.2
15 Aug 2021 12:45 Mutcho Northern Mariana Islands  0.2
15 Aug 2021 12:45 Chalan Kanoa Northern Mariana Islands  0.2
15 Aug 2021 12:45 Aslito Northern Mariana Islands  0.2
15 Aug 2021 12:45 Tanapag Northern Mariana Islands  0.2
15 Aug 2021 12:45 Saipan Northern Mariana Islands  0.2
15 Aug 2021 12:45 San Roque Northern Mariana Islands  0.2
15 Aug 2021 12:45 Kagman Northern Mariana Islands  0.2
15 Aug 2021 01:15 Lockwood Terrace Guam  0.1
15 Aug 2021 01:15 Agat Guam  0.1
15 Aug 2021 01:15 Camp Bright Guam  0.1
15 Aug 2021 01:15 Santa Rita Guam  0.1
15 Aug 2021 01:15 Piti Guam  0.1
15 Aug 2021 01:15 Asan Guam  0.1
15 Aug 2021 01:15 Hagatna Guam  0.1
15 Aug 2021 01:15 Sinajana Guam  0.1
15 Aug 2021 01:15 Mongmong Guam  0.1
15 Aug 2021 01:15 Ylig Guam  0.1
15 Aug 2021 01:15 Yona Guam  0.1
15 Aug 2021 01:15 Tamuning Guam  0.1
15 Aug 2021 01:15 Barrigada Guam  0.1
15 Aug 2021 01:15 Camp Quezon Guam  0.1
15 Aug 2021 01:15 Harmon Village Guam  0.1
15 Aug 2021 01:15 Oceanview Guam  0.1
15 Aug 2021 01:15 Dededo Guam  0.1
15 Aug 2021 01:15 South Acres Guam  0.1
15 Aug 2021 01:15 Asbeco Guam  0.1
15 Aug 2021 01:15 Adacao Guam  0.1
15 Aug 2021 01:15 Ipapao Guam  0.1
15 Aug 2021 01:15 Potts Junction Guam  0.1
15 Aug 2021 01:15 Perez Acres Guam  0.1
15 Aug 2021 01:15 Spring Hill Subdivision Guam  0.1
15 Aug 2021 01:15 Upi Guam  0.1
15 Aug 2021 01:15 Gayinero Guam  0.1
15 Aug 2021 01:15 Asatdas Guam  0.1
15 Aug 2021 01:15 Lupog Guam  0.1
15 Aug 2021 12:45 Songsong Northern Mariana Islands  0.1
15 Aug 2021 12:45 Teteto Northern Mariana Islands  0.1
15 Aug 2021 12:45 Rota Northern Mariana Islands  0.1
15 Aug 2021 12:45 Sinapalo Northern Mariana Islands  0.1
15 Aug 2021 12:45 Sunharon Roads Northern Mariana Islands  0.1
15 Aug 2021 00:45 Talofofo Guam  0.1
15 Aug 2021 12:45 Umatac Guam  0.1
15 Aug 2021 12:45 Merizo Guam  0.1
15 Aug 2021 00:45 Inarajan Guam  0.1
15 Aug 2021 01:00 Shomushon Northern Mariana Islands  0.1
15 Aug 2021 01:00 Marasu Northern Mariana Islands  0.1