Stew this is a well beta tested weather station. I learned about them from Scott @ Argent:
If you are gathering data for your own use this will be sufficient but is not scientific grade. You are going to need a stronger mounting system for the anemometer sensor array and most importantly, you will need a mobile aspirated enclosure for the temp / humidity sensor array. These modules are in the "stacked plates" and must be kept away from direct contact with moisture BUT must have an active flow of ambient air. Not an easy engineering challenge for a mobile application. The plates will allow rain to be ingested by the sensor and ruin it
Please note the large "sewer pipe" www.mesoscale.ws/pic2005/050516-7.jpg
Next the anemometer cups and vane will probably need to be replaced often due to impacts with debris, hail and 70+ MPH winds.
Lastly you need two important factors to make the data useful, it must be in sharable format and you must know when and where it was obtained. That is a software issue try virtual weather station:
There is a caveat that I must share, In situ meteorological measurements are by their very nature dangerous endeavours and should not be attempted without adequate training.
For your enjoyment: