Medcrew apparently don't drive their cars when it rains  

I don't know about things now, I haven't flown HEMS/HAA for well over 10 years.  Back then though, all radio traffic and phone calls with the comm center were recorded.  If I thought the WX was safe to fly but the med crew, or one of the med crew, wanted to turn down the flight, I'd simply say to the comm center we were turning the flight down because the med crew/RN/Medic "declined for WX."  If it was a a unanimous decision I'd say "we."  Boy didn't that cause a stink!  When they complained I'd ask if what I'd said wasn't true and accurate?  You'd be surprised how fast folks started taking safe flights!

Oh, the trouble makers and pot stirrers sure complained and whined about me (behind my back, not to my face), but I didn't care then, or now!