Codes 00-09 General Group: No precipitation, fog, duststorm, sandstorm, drifting or blowing snow at the station at the time of observation or, except for 09 during the preceeding hour.Code: 08
Well developed dust whirl(s) or sand whirl(s) seen at or near the station during the preceding hour or at the time of observation, but no duststorm or sandstorm
Own work
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