If in the USA, it is because of 5G. The government failed to regulate the frequency overlap and cutoff requirements like the more civilized world. The 5G band butts up against the hydrogen line. The FCC was warned that a failure to regulate this issue would set back meteorology to the state it was in the 1970’s. They failed to regulate it. Now the 5G band pollutes the hydrogen line in the USA which kills the resolution and detection of water in the atmosphere. All of the models predicting weather have garbage in and garbage out. In other words they run on medieval era thoughts prayers witch burning and alchemy like the rest of the Republican jihad.