The severe weather warning alerts are truncated. Why? It doesn’t do any good if the information is not there.
Andrew Tasi commented
Weather warnings (e.g. severe thunderstorm warnings, tornado watches) in the Yahoo Weather app are often cut off / truncated.
Apparently the underlying field and/or column length for your app are not long enough for most of the US National Weather Service Messages. I recommend you visit https://www.weather.gov/alerts and take a sampling of the message to determine a rough maximum length. 256 characters is not enough.