Tropical Cyclone JOHN-24
Location
Mexico
Date
2024-09-22
to 2024-09-27
Coordinates
Lat:
18.5
Lon:
-103.5
Danger Scale
Disaster Details
Event summary
Tropical Cyclone JOHN-24 can have a medium humanitarian impact based on the maximum sustained wind speed, exposed population and vulnerability.
| GDACS ID | TC 1001100 |
| Name | JOHN-24 |
| From - To | 22 Sep - 27 Sep |
| Exposed countries | Mexico |
| Exposed population | 150 thousand in Category 1 or higher |
| Maximum wind speed | 194 km/h Category 3 |
| Maximum storm surge | 0.3 m (24 Sep 06:00 UTC) |
| Vulnerability | Medium (Mexico) |
GDACS Score
| Wind | Storm surge | Rainfall | GDACS score | |
| GDACS NOAA | 194 km/h | 0.3 m | n.a. | 1.5 | Single TC: maximum expected impact (wind, storm surge, rainfall) |
| HWRF | 187 km/h | 2.8 m | 1434 mm | 0.5 |
| GFS | 148 km/h | 3 m | 1552 mm | 0.5 |
| ECMWF | 122 km/h | 3.7 m | 2060 mm | 0.5 |
- Hurricane JOHN formed over the Pacific Ocean on 22 September, moved over south-western Mexico and made landfall on 24 September in the morning (UTC) over the western coast of Guerrero state. On 24 September at 6.00 UTC, its centre was located inland approximately 71 km east of Acapulco city, Guerrero state, with maximum sustained winds of 160 km/h.
- According to media, 3,000 people have been evacuated in 80 shelters across the coastal areas of Oaxaca state.
- JOHN is forecast to move further inland near the coast of southern Mexico on 24 September.
- For the next 48 hours, heavy rainfall strong winds and storm surge are expected across Chiapas, Guerrero and Oaxaca states. A Hurricane Warning is in effect from East of Acapulco to Lagunas de Chacahua.
- Hurricane JOHN made landfall and passed over southern and central Guerrero state, southern Mexico on 24 September, with maximum sustained winds up to 194 km/h (category 3 hurricane), weakening and dissipating. On 24 September late in the evening (UTC), its remnants was located inland over the western Guerrero state.
- Its passage caused very heavy rainfall resulting in floods and triggering landslides. Media report, as of 25 September, two fatalities across the area of Tlacoachistlahuaca town, Guerrero state due to a landslide.
- Over the next 96 hours, very heavy rainfall is still forecast over southern and central Mexico, including the already affected Guerrero state.
- Tropical cyclone JOHN, after its landfall over southern Guerrero state, southern Mexico on 24 September as a category 3 hurricane, continued over the Eastern Pacific Ocean, along the coast of Guerrero and Michoacan states, on 25-26 September. On 27 September at 6.00 UTC its centre was located over the Ocean approximately 60 km south of the coast of the Michoacan state, with maximum sustained winds of 100 km/h (tropical storm).
- Its passage caused very heavy rainfall resulting in floods and triggering landslides. Media report, as of 27 September, five fatalities across Guerrero state.
- JOHN is forecast to continue northwestward along the coast of Michoacan, Colima and Jalisco states on 27-28 September as a tropical storm, further weakening.
- Over the next 24 hours, heavy rainfall is still forecast over coastal areas of Michoacan, Colima and Jalisco states. NOAA issed a tropical storm warnings over these areas.
- Hurricane JOHN, after its landfall over Guerrero state, southern Mexico on 24 September as a category 3 hurricane, continued over the Eastern Pacific Ocean very close and along the coast of Guerrero and Michoacan states, on 25-27 September, further weakening and dissipating.
- Its passage caused very heavy rainfall resulting in floods and triggering a number of landslides. Media report, as of 30 September, 24 fatalities across the southwest Pacific coast of Mexico, of which 18 fatalities in the Guerrero state, the worst affected.
- Numerous schools, homes, and businesses have been damaged, classes and work throughout the Guerrero state remain suspended. Thousands of people in the coastal regions have been evacuated to temporary shelters set up by the government.
- Over the next 96 hours, very heavy rainfall is still forecast over most of central and southern Mexico.
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Exposed population
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