Overall Red alert Tropical Cyclone for YUTU-18
in Philippines, Northern Mariana Islands

Impact

Tropical Cyclone YUTU-18 can have a high humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source GDACS
Exposed countries Philippines, Northern Mariana Islands
Exposed population 11 million in Category 1 or higher
Maximum wind speed 287 km/h
Maximum storm surge 0.2 m (25 Oct 08:00 UTC)
Vulnerability Medium (Northern Mariana 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
Current 204 km/h 0.2 m n.a. 2.5
Overall 287 km/h 0.2 m n.a. 2.5

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

Wind

204 km/h Current Max.

Up to 49000 people in Category 1 strength or higher (see SSHS)

Impact Timeline

Alert Date (UTC) Max Winds (km/h) Population in
Tropical Storm or higher
Population in
Cat 1. or higher
Countries
Green 1 21 Oct 2018 12:00 231 210 thousand 2 thousand Northern Mariana Islands
Red 2 21 Oct 2018 18:00 204 210 thousand 50 thousand Northern Mariana Islands

Bulletin Timeline

Alert Date (UTC) Category
(SSHS)
Max winds
(km/h)
Population in
Cat.1 or higher
Population in
Tropical Storm
or higher
Location (lat, lon) Countries
GREEN
1 21 Oct 2018 12:00 Tropical depression 46 no people <1000 people 8.4, 157.6
GREEN
2 21 Oct 2018 18:00 Tropical depression 56 no people <1000 people 8.6, 156.8
GREEN
2 22 Oct 2018 06:00 Tropical storm 65 no people <1000 people 9.2, 155.2
GREEN
2 22 Oct 2018 18:00 Tropical storm 83 no people <1000 people 10.2, 153.7
GREEN
2 23 Oct 2018 06:00 Category 1 120 no people <1000 people 11.3, 152.1
GREEN
2 23 Oct 2018 18:00 Category 1 148 no people 210000 people 12.5, 150.3 Guam
RED
2 24 Oct 2018 18:00 Category 3 204 49000 people 210000 people 14.6, 147.2 Northern Mariana Islands
GREEN
2 25 Oct 2018 18:00 Category 4 231 no people 120000 people 16.5, 145 Guam
GREEN
2 26 Oct 2018 18:00 Category 4 250 no people no people 18.8, 143
Actual track of the current bulletin
The alert for forecast greater than 3 days is limited to Orange level.
Download:



Exposed population - AoIs

Exposed population in the potential affected countries, provinces and populated places

Countries

Country
Northern Mariana Is.

Provinces

Region Province Country
Northern Mariana Is. Northern Mariana Islands

Populated places

Name Region Province Country City class Population
Saipan Northern Mariana Islands Capital 62000 people

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft)
Dynasty 46 0
Saipan International SPN 66 Civ. Paved Yes 8700
Nikko 18 0
West Tinian TIQ 82 Civ. Paved Yes 5900
Commonwealth Health Center 5 0

Ports

Name LOCODE Country
Tinian Northern Mariana Islands
Saipan MPSPN Northern Mariana Islands
Farallon de Medinilla Northern Mariana Islands

Rainfall

Rainfall accumulation of the past 24h, as detected by the Global Precipitation Measurement mission of NASA. For more information, see https://www.nasa.gov/mission_pages/GPM/main/index.html.

...

StormSurge

0.2 m

The maximum Storm surge height is  0.2m in Garapan, Northern Mariana Islands. This height is estimated for 25 Oct 2018 08:00 UTC .

The JRC has developed an experimental global storm surge model. 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.

Locations affected by Storm surge (12 locations). Calculation based on advisory number 2 of 21 Oct 2018 18:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert Date (UTC) Name Country Storm surge height (m)
25 Oct 2018 08:00 Garapan Northern Mariana Islands  0.2
25 Oct 2018 08:00 Mutcho Northern Mariana Islands  0.2
25 Oct 2018 08:00 Tanapag Northern Mariana Islands  0.2
25 Oct 2018 08:00 San Roque Northern Mariana Islands  0.2
25 Oct 2018 06:00 Aslito Northern Mariana Islands  0.2
25 Oct 2018 06:00 Afetna Northern Mariana Islands  0.2
25 Oct 2018 05:00 Susupi Northern Mariana Islands  0.2
25 Oct 2018 05:00 Laolao Northern Mariana Islands  0.2
25 Oct 2018 05:00 Chalan Kanoa Northern Mariana Islands  0.2
25 Oct 2018 06:00 Kagman Northern Mariana Islands  0.2
25 Oct 2018 06:00 Saipan Northern Mariana Islands  0.2
25 Oct 2018 06:00 Sunharon Roads Northern Mariana Islands  0.1