Overall Red alert Tropical Cyclone for WILLA-18
in Mexico

Impact

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

Meteorological source GDACS (NOAA)
Glide number: TC-2018-000168-MEX
Exposed countries Mexico
Exposed population 190 thousand in Category 1 or higher
Maximum wind speed 250 km/h
Maximum storm surge 1 m (24 Oct 02:00 UTC)
Vulnerability Medium (Mexico)

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
GDACS Current 185 km/h 1.0 m n.a. 2.5
GDACS Overall 250 km/h 1.0 m n.a. 2.5

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

Wind

185 km/h Current

Up to 500000 people in Category 1 strength or higher (see SSHS)

Impact Timeline

Alert Date (UTC) Max Winds (km/h) Population in
Tropical Storm
Population in
Cat. 1 or higher
Countries
Green 1 20 Oct 2018 09:00 185 Few people affected No people Mexico
Green 2 20 Oct 2018 15:00 185 7 thousand No people Mexico
Orange 3 20 Oct 2018 21:00 148 3.3 million 140 thousand Mexico
Orange 4 21 Oct 2018 03:00 167 3 million 190 thousand Mexico
Orange 5 21 Oct 2018 09:00 167 5.6 million 900 thousand Mexico
Red 6 21 Oct 2018 15:00 204 4.6 million 920 thousand Mexico
Red 7 21 Oct 2018 21:00 204 5.8 million 340 thousand Mexico
Red 8 22 Oct 2018 03:00 185 4.5 million 510 thousand Mexico

Bulletin Timeline

Alert Date (UTC) Category Max winds (km/h) Population in
Tropical Storm
Population in
Cat.1 or higher
Location (lat, lon)
GREEN
1 20 Oct 2018 09:00 Tropical depression 56 no people no people 15.1, -104.9
GREEN
2 20 Oct 2018 15:00 Tropical storm 65 no people no people 14.8, -105.7
GREEN
3 20 Oct 2018 21:00 Tropical storm 93 no people no people 15.2, -105.8
GREEN
4 21 Oct 2018 03:00 Tropical storm 111 no people no people 15.7, -106.1
GREEN
5 21 Oct 2018 09:00 Category 1 139 no people no people 16.2, -106.5
GREEN
6 21 Oct 2018 15:00 Category 2 157 no people no people 16.6, -106.7
GREEN
7 21 Oct 2018 21:00 Category 3 185 no people no people 17, -107
GREEN
8 22 Oct 2018 03:00 Category 4 231 no people no people 17.7, -107.2
GREEN
8 22 Oct 2018 12:00 Category 4 250 no people no people 18.6, -107.4
GREEN
8 23 Oct 2018 00:00 Category 4 231 140000 people no people 19.7, -107.5
GREEN
8 23 Oct 2018 12:00 Category 4 213 1.9 million people 6200 people 20.7, -107.2
RED
8 24 Oct 2018 00:00 Category 3 185 4.2 million people 500000 people 22.1, -106.2
GREEN
8 25 Oct 2018 00:00 Tropical depression 56 no people no people 26.2, -101.3
Actual track of the current bulletin
The alert for forecast greater than 3 days is limited to Orange level.



Exposed population

Countries

Country
Mexico

Provinces

Region Province Country Population
Nayarit Mexico 890000 people
Zacatecas Mexico 1.3 million people
Sinaloa Mexico 2.3 million people
Durango Mexico 1.4 million people
Coahuila Mexico 2.1 million people

Populated places

Name Region Province Country City class Population Distance
Tecuala Nayarit Mexico City 14000 people 551 km
Acaponeta Nayarit Mexico City 18000 people 565 km
Escuinapa Sinaloa Mexico City 28000 people 586 km
Miguel Auza Durango Mexico City 12000 people 827 km
Juan Aldama Zacatecas Mexico City 13000 people 830 km
Parras Coahuila de Zaragoza Mexico City 32000 people 1003 km

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) Distance
Isla Maria Madre 5 0 442 km
Teacapan 6 0 559 km
Acaponeta 84 0 562 km
Rancho los Cabras 3 0 577 km
La Candelaria del Alto 1940 0 657 km
Sombrerete 2345 0 760 km
Casa Madero 1372 0 1007 km

Dams

Reservoir Dam Name River Year Distance
G. Franci Poanas 1968 775 km

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

1 m

The maximum Storm surge height is  1.0m in Novillero, Mexico. This height is estimated for 24 Oct 2018 02:00 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.

Locations affected by Storm surge (14 locations). Calculation based on advisory number 8 of 22 Oct 2018 03:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert Date (UTC) Name Country Storm surge height (m)
24 Oct 2018 02:00 Novillero Mexico  1.0
24 Oct 2018 03:00 Cuantla Mexico  1.0
24 Oct 2018 02:00 Cuamecate Mexico  0.9
24 Oct 2018 02:00 Santa Cruz Mexico  0.7
24 Oct 2018 02:00 El Nuevo Mexico  0.7
24 Oct 2018 02:00 Toro Mocho Mexico  0.6
24 Oct 2018 03:00 Isla de Palmito del Verde Mexico  0.4
24 Oct 2018 02:00 La Puerta Mexico  0.3
24 Oct 2018 01:00 San Blas Mexico  0.3
24 Oct 2018 01:00 La Palmita Mexico  0.2
24 Oct 2018 02:00 Santa Cruz Mexico  0.2
24 Oct 2018 02:00 Jarilla Mexico  0.2
24 Oct 2018 02:00 La Lima Mexico  0.1
24 Oct 2018 03:00 Caimanero Mexico  0.1