Alaska Airlines has issued a temporary ground stop for all flights across the United States due to a significant information technology outage affecting its operations. This disruption, described as a nationwide tech issue, has led to the grounding of flights at all airports, causing major delays and cancellations. The airline is currently working to restore operations following this incident, which marks the second nationwide outage for the airline in recent months. The IT outage has also prompted concerns about its impact on hotel bookings and tourism in major U.S. cities. Despite efforts to return to regular operations, the airline has had to cut its annual profit forecast amid rising fuel costs and the operational challenges presented by this outage.