These historical weather resources document the various weather measurements during the meltdowns at Fukushima Daiichi.
Wind speed and direction. Different heights and times can be chosen.
Wind speed maps
Wind speed maps (per hour analysis)
Wind speed maps (global model)
Wind speed maps with option to toggle the 3 types on one map
Weather radar
Weather radar for Daiichi with date slider
Precipitation maps
Weather radar AMeDAS