Heavy rain and thunderstorms are forecast for the Balearic Islands and parts of eastern mainland Spain until at least October 7. 4 cm (1.6 inches) per hour or 10 cm (3.9 inches) in 12 hours is possible on October 6. Thunderstorms are expected to break out in parts of the southeast of the Autonomous Community of Murcia and in the Balearic Islands. Thunderstorms can be accompanied by strong gusts of wind, lightning and possible hailstorms.
Since October 6, the Spanish National Meteorological Agency (AEMET) has issued the following weather warnings in the affected area:
Orange heavy rain warning (mid level on a three level scale): Parts of the Autonomous Community of Valencia in the center-east and east of Mallorca in the Balearic Islands.
Yellow Heavy Rain Warnings: In the rest of the affected area.
Yellow storm warnings: Parts of the southeast of the Autonomous Community of Murcia and across the Balearic Islands.
Further yellow warnings for heavy rain and storms were issued in parts of the affected area on October 7. Officials could update and possibly expand weather alert coverage over the next few days.
Heavy rains were reported in parts of southern Valencia province in early October 6, with more than 10 cm (3.9 inches) of rainfall recorded in some areas. Classes were suspended in some affected areas and roads were inundated by floodwaters. The Ribera Alta region, including the towns of Alzira and Carcaixent, is among the most affected areas.
Sustained heavy rains could trigger flooding in low-lying communities near rivers, streams and creeks. Urban flooding is also possible in developed areas where stormwater drainage systems are easily overwhelmed or lacking. Sites located downstream of 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 heavy rainfall has saturated the ground. Disruptions to electrical and telecommunications services are possible when major floods or landslides affect utility networks.
Floodwaters and debris flows can render some bridges, rail networks or roads impassable, impacting overland travel in and around affected areas. Puddling of road surfaces could lead to hazardous driving conditions on regional highways. Authorities may temporarily close some low roads that are inundated by floodwaters. Extreme weather conditions could also lead to flight delays and cancellations at regional airports. Floods could block regional rail lines; freight and passenger train delays and cancellations are likely in areas that experience heavy rain and possible track flooding.
Localized business interruptions may occur in low areas; some businesses may not be operating at full capacity due to facility damage from flooding and the inability of some employees to get to job sites.
Monitor local media for weather updates and advisories. Confirm all transportation reservations and business arrangements before traveling to affected areas. Obtain up-to-date information on road conditions before driving or routing expeditions in areas where extreme weather conditions are expected; plan for possible supply chain disruptions in affected areas. Stay away from high streams, creeks and other waterways prone to flash flooding. Do not attempt to navigate flooded roads. Use caution in high terrain due to the threat of landslides, as well as in mountainous areas where avalanches pose a threat. Charge battery-powered devices during extended power outages.
State Meteorological Agency (AEMET)