Not just a hypothetical — during the December bush fires in Eastern Australia some towns were left without telecommunications when cell towers and power lines w

Not just a hypothetical — during the December bush fires in Eastern Australia some towns were left without telecommunications when cell towers and power lines were burnt down. People ended up relying on AM radio for fire and road info, and HAMs set up temporary radio systems until things were restored. e.g. https://www.abc.net.au/news/2020-02-01/amateur-radio-skills-prove-useful-during-bushfires/11903200 https://www.abc.net.au/news/2020-02-01/amateur-radio-skills-... Atlassian founder Mike Cannon-Brookes helped get solar power set up for the cell towers that were left without power: https://www.sbs.com.au/news/the-feed/atlassian-co-founder-rolls-out-new-solar-powered-systems-for-bushfire-victims https://www.sbs.com.au/news/the-feed/atlassian-co-founder-ro... So your best bet is to have a working battery-powered AM/FM radio and a solar panel to recharge the batteries.