Overall Orange alert Tropical Cyclone for KATIA-17
in Mexico

Impact

Tropical Cyclone KATIA-17 can have a medium humanitarian impact based on the maximum sustained wind speed,exposed population and vulnerability.

Meteorological source GDACS (NOAA)
Exposed countries Mexico
Exposed population 520 thousand in Category 1 or higher
Maximum wind speed 176 km/h
Maximum storm surge 0.8 m (09 Sep 05:00 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 167 km/h 0.8 m n.a. 1.5
GDACS Overall 176 km/h 0.8 m n.a. 1.5

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

Wind

167 km/h Current

Up to 1.1 million 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 05 Sep 2017 21:00 102 3 million No people Mexico
Green 2 06 Sep 2017 03:00 111 6.5 million No people Mexico
Green 3 06 Sep 2017 09:00 111 20.4 million No people Mexico
Green 4 06 Sep 2017 15:00 120 2.1 million No people Mexico
Orange 5 06 Sep 2017 21:00 148 4.1 million 840 thousand Mexico
Orange 6 07 Sep 2017 03:00 176 8.2 million 1.6 million Mexico
Orange 7 07 Sep 2017 09:00 167 14.9 million 1.3 million Mexico
Orange 8 07 Sep 2017 15:00 167 4 million 540 thousand Mexico
Orange 9 07 Sep 2017 21:00 167 4.4 million 730 thousand Mexico
Orange 10 08 Sep 2017 03:00 167 9.5 million 250 thousand Mexico
Orange 11 08 Sep 2017 09:00 167 9.7 million 1.2 million 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 05 Sep 2017 21:00 Tropical depression 56 no people no people 22.4, -96.7
GREEN
2 06 Sep 2017 03:00 Tropical depression 56 no people no people 22.2, -96.4
GREEN
3 06 Sep 2017 09:00 Tropical storm 65 no people no people 22.1, -96.3
GREEN
4 06 Sep 2017 15:00 Tropical storm 74 no people no people 21.7, -95.9
GREEN
5 06 Sep 2017 21:00 Category 1 120 no people no people 21.7, -95.1
GREEN
6 07 Sep 2017 03:00 Category 1 130 no people no people 21.7, -94.8
GREEN
7 07 Sep 2017 09:00 Category 1 130 no people no people 21.5, -94.5
GREEN
8 07 Sep 2017 15:00 Category 1 130 no people no people 21.6, -94.6
GREEN
9 07 Sep 2017 21:00 Category 1 130 no people no people 21.6, -94.6
GREEN
10 08 Sep 2017 03:00 Category 1 139 no people no people 21.5, -95.1
GREEN
11 08 Sep 2017 09:00 Category 1 148 no people no people 21.3, -95.4
ORANGE
11 08 Sep 2017 18:00 Category 2 157 3.5 million people 74000 people 21, -96
ORANGE
11 09 Sep 2017 06:00 Category 2 167 9.7 million people 1.1 million people 20.3, -97
GREEN
11 09 Sep 2017 18:00 Tropical storm 74 no people no people 19.3, -98.2
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
Veracruz Mexico 6.7 million people
Puebla Mexico 4.4 million people
Tlaxcala Mexico 820000 people

Populated places

Name Region Province Country City class Population Distance
Tlapacoyan Veracruz Mexico City 33000 people 239 km
Apizaco Tlaxcala Mexico City 45000 people 354 km
Tlaxcala Tlaxcala Mexico Major city 83000 people 369 km

Critical infrastructure

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

Dams

Reservoir Dam Name River Year Distance
La Soledad Apulco 1962 260 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

0.8 m

The maximum Storm surge height is  0.8m in La Guadalupe, Mexico. This height is estimated for 09 Sep 2017 05:00 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 (21 locations). Calculation based on advisory number 11 of 08 Sep 2017 09:00:00 UTC. (Simulation using 0.5 minute resolution)

Alert Date (UTC) Name Country Storm surge height (m)
09 Sep 2017 05:00 La Guadalupe Mexico  0.8
09 Sep 2017 05:00 Monte Gordo Mexico  0.8
09 Sep 2017 05:00 Tecolutla Mexico  0.5
09 Sep 2017 05:00 Tenixtepec Mexico  0.4
09 Sep 2017 04:00 Vega de Alatorre Mexico  0.3
09 Sep 2017 08:00 Tamiahua Mexico  0.3
09 Sep 2017 09:00 Laja Mexico  0.3
09 Sep 2017 09:00 Nautla Mexico  0.2
09 Sep 2017 11:00 El Naranjal Mexico  0.2
09 Sep 2017 03:00 El Laurel Mexico  0.2
09 Sep 2017 11:00 El Tular Mexico  0.2
09 Sep 2017 11:00 San Jose de los Leones Mexico  0.1
09 Sep 2017 13:00 San Francisco del Mar Mexico  0.1
09 Sep 2017 10:00 Agua Dulce Mexico  0.1
09 Sep 2017 10:00 Los Ebanos Mexico  0.1
09 Sep 2017 10:00 El Mezquital Mexico  0.1
09 Sep 2017 10:00 Cabo Rojito Mexico  0.1
09 Sep 2017 11:00 El Porvenir Mexico  0.1
09 Sep 2017 01:00 Emilio Carranza Mexico  0.1
09 Sep 2017 09:00 La Mata Mexico  0.1
06 Sep 2017 16:00 La Presita Mexico  0.1