Media organisations are essential communication stakeholders in social media disaster communication during extreme events. They perform gatekeeper and amplification roles which are crucial for collective sense-making processes. In that capacity, media organisations distribute information through social media, use it as a source of information, and share such information across different channels. Yet, little is known about the role of media organisations on social media as supposed sense-givers to effectively support the creation of mutual sense. This study investigates the communication strategies of media organisations in extreme events. To that matter, a Twitter dataset consisting of 9,414,463 postings was collected during Hurricane Harvey in 2017. We employed social network analysis and content analysis methods to identify media communication approaches. Three different sense-giving strategies were identified: retweeting local in-house outlets; bound amplification of messages of individual associated journalists; and open message amplification.