Weird obs for May 27, 2008

This time we go to China, where the recent earthquake may have contributed to this (although I have no proof).

Harbin:
ZYHB 271800Z 19008KT 3000 SA BKN026 14/10 Q0994 NOSIG=
Sand. Not blowing sand, but sand. Well, I guess it can't really be blowing sand if the wind is only 8 knots.

Changchun:
ZYCC 270300Z 28018KMH 240V310 0500 R24/1400N SS SCT020 16/08 Q0997 NOSIG=
The very rarely used METAR code for sandstorm.