2 ms·Doesn't work when you're flying through a cloud.by qbasic_forever 4y agoDoesn't work when you're flying through a cloud.cj 4y agoOr at night. Or to assess wind speed.krisoft 4y agoOr when you want to know the weather at your destination half a continent away.h2odragon 4y agoWell, it works ("I'm in a cloud!") but isn't sufficiently detailed for the needs of the situation.