We live in Orlando and fly in/out of MCO very frequently. Unless a storm is right over the airport things go along pretty normally. If you're flying soon, be aware that this is typically the dry season and thunderstorms aren't frequent now. Having said that, there are thunderstorms in the forecast for later today. We will see.... As we get more towards May then the daily afternoon thunderstorm becomes more the norm.
In the case of lightning nearby however all ramp workers (luggage, catering, etc) are brought in to shelter and not allowed out on the tarmac until 20 minutes after the last lightning strike. That has the potential to delay planes but its usually not a problem. It happened to us once out of probably 40 flights in 4 years.