Colombia: Authorities responding to multiple landslides in Antioquia Department as of early July 15 /update 1

Event

Emergency crews are responding to multiple landslides in San Antonio de Prado and Taparto villages near Medellin City in Antioquia Department as of early July 15. Authorities have confirmed two fatalities due to the landslide in San Antonio de Prado Village that occurred July 13; search and rescue operations are underway. Due to the risk of further landslides, authorities have issued evacuation orders for residents along the Quebrada Dona Maria Stream. An orange (middle level on a three-tier scale) alert is in place over the area.

The landslide in Taparto Village, Andes Municipality, that occurred July 14 buried the La Lejia school; three minors died while two other minors are injured.

The Institute of Hydrology, Meteorology and Environmental Studies has forecast rainfall over Antioquia Department through at least July 17. Heavy rainfall could result in additional landslides, exacerbate the current situation, or hamper recovery efforts.

Hazardous Conditions
Sustained heavy rainfall could trigger additional landslides and flooding in low-lying communities near rivers, streams, and creeks. Urban flooding is also possible in developed areas with easily overwhelmed stormwater drainage systems. Sites located downstream from large reservoirs or rivers may be subject to flash flooding after relatively short periods of intense rainfall. Landslides are possible in hilly or mountainous areas, especially where the soil has become saturated by heavy rainfall.

Authorities could issue mandatory evacuation orders for flood-prone communities over the coming days. Disruptions to electricity and telecommunications services are possible where significant flooding or landslides impact utility networks.

Transport
Floodwaters and debris flows may render some bridges, rail networks, or roadways impassable, impacting overland travel in and around affected areas. Ponding on road surfaces could cause hazardous driving conditions on regional highways. Authorities could temporarily close some low-lying routes that become inundated by floodwaters. Flooding could block regional rail lines; freight and passenger train delays and cancellations are likely in areas that see heavy rainfall and potential track inundation. Severe weather could also trigger flight delays and cancellations at airports in the region.

Localized business disruptions may occur in low-lying areas; some businesses might not operate at full capacity because of flood damage to facilities, possible evacuations, and some employees' inability to reach work sites.

Advice

Monitor local media for weather updates and related advisories. Confirm all transport reservations and business appointments before travel. Make allowances for localized travel delays and potential supply chain disruptions where flooding has been forecast. Do not drive on flooded roads. Charge battery-powered devices in the case of prolonged electricity outages.

Resources

Institute of Hydrology, Meteorology and Environmental Studies (IDEAM)