Monitor local weather alerts and avoid coastal areas and exposed waterfronts while the municipal 'mala mar' alert and Meteoalarm warnings are active.
Allow extra time for travel and expect road delays on routes north of Barcelona (AP-7/B-23) use alternative routes recommended by authorities where possible.
If flying, check airline status frequently and confirm return/routes—several attendees experienced cancellations and re-routing due to airspace closures.
Avoid demonstrations and large crowds and follow instructions from local authorities, per the U.S. Department of State travel advisory.
Keep plans flexible: prepare for transport disruptions from severe weather or traffic incidents (carry digital copies of bookings and contact info).