Laptops especially do not like water, coffee, or pop in their environment. For the driver, information overload during storm chasing can cause problems. Too many radios squawking at once, people talking, glancing at the computer screen, fiddling with a knob, etc. can spell trouble. Pilots suffer at times from this phenomenon, especially when things begin to 'stack up' a little bit. Flying an instrument poor Cessna 150 is a lot simpler than a Piper Malibu loaded with avionics and more complex systems.
Information overload can lead to accidents, and death.
Keep it simple. You can be the most well equipped techno-chaser out there, but there's no guarantee you'll bag a tornado time after time. It does mean, however, that you'll spend lots of money on your 'toys,' and perhaps expend a fair amount of frustration because they don't give the results you thought you'd paid for. Like it or not, you can't buy experience. On local storm chasing trips, I take my cameras, and leave the laptop at home.