JetA: the Metar you quoted was not the latest before they landed (sort of).
Before you post (and imply that they landed in that kind of weather) make sure you get the time stamp right. There where two more issued between the storm and the crash:
KOWA 311415Z AUTO
32008KT 10SM TSRA SCT037 BKN045 OVC050 18/16 A2988 RMK AO2 P0003 LTG DSNT ALQDS
KOWA 311435Z AUTO
18003KT 10SM -VCTSRA SCT038 SCT049 BKN100 18/16 A2985 RMK AO2 P0005 LTG DSNT ALQDS
KOWA 311455Z AUTO
17006KT 10SM RA SCT018 SCT029 BKN037 19/17 A2983 RMK AO2 P0009 LTG DSNT E THRU S
They came down at 14:44Z after circumnavigating the main cell.
However, the wind obviously shifted on them and they landed with a 6kt tailwind (maybe they didn't even realized it) - that certainly could explain why they landed long and tried to go around (according to the mechanic on the field who witnessed the accident). I think it could even be mechanical trouble on the go-around.
The CVR has been recovered, we will know soon.
I think the storm that went through the area comes handy to the press, so they can write something.