Even as a strong MMGW believer and think its probably that MMGW is responsible for a increased number of earlier than usual Tornadoes this year, I would tend to side with the GOP in blocking the funds.
Simply because we have a small army of scientists working on the problem already, and they use data over a far larger time period than mere climatologists who are looking at only predicting tomorrow's weather.
The other thing to say that most of the USA had a far warmer and drier winter than usual, but other countries in the Northern Hemisphere had a colder and wetter winter than usual. So things kinda averaged out. As we do not yet know if the number of later season US tornadoes usually due about now will continue to increase or start dropping.
The last thing to say is that the USA, due to its pattern of mountain ranges, always has the most tornadoes in the world..