High Wind Warning, Wind Advisory
Expires 3:00 PM MST on December 13, 2017

Statement as of 2:34 am MST on December 13, 2017


... High Wind Warning remains in effect until noon MST today...
... Wind Advisory remains in effect from noon today to 3 PM MST
this afternoon...

* winds... northwest 35 to 45 mph with gusts up to 60 mph.

* Timing... very strong winds will continue through this morning,
and then diminish late this afternoon.

* Impacts... sudden wind gusts can cause drivers to lose control,
especially in lightweight or high profile vehicles. Strong
winds can cause blowing dust, reduced visibility, and flying
debris.

Precautionary/preparedness actions...

A High Wind Warning means 40 mph winds, or gusts over 60 mph, are
expected or occurring.

A Wind Advisory means 30 mph winds, or gusts over 45 mph, are
expected or occurring.







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Air Quality Alert
Expires 5:00 PM MST on December 13, 2017

Statement as of 3:00 am MST on December 13, 2017


... Air pollution alert for dust for Rapid City west of The Gap in
effect from now until 5 PM...

Strong northwest winds of 30 to 40 mph with gusts to 60 mph will
continue through the morning, and then gradually diminish in the
afternoon. The gusty winds will suspend fine dust in the air over
west Rapid City, producing poor air quality.

The Rapid City air quality office recommends the elderly, Young,
and anyone with respiratory problems avoid excessive physical
exertion and exposure to the outside air.

Voluntary actions to reduce dust pollution include, ceasing or
reducing the manipulation of soil in construction, Industrial,
and agricultural activities, and increasing the use of pollution
controls for soil stabilization, waste pits, stock piles, and
construction sites.


Hourly dust concentrations are available on the denr web Page
http://denr.SD.Gov/des/aq/aarealtime.Aspx


300 am MST Wed Dec 13 2017

... Air pollution alert for dust for Rapid City west of The Gap in
effect from now until 5 PM...

Strong northwest winds of 30 to 40 mph with gusts to 60 mph will
continue through the morning, and then gradually diminish in the
afternoon. The gusty winds will suspend fine dust in the air over
west Rapid City, producing poor air quality.

The Rapid City air quality office recommends the elderly, Young,
and anyone with respiratory problems avoid excessive physical
exertion and exposure to the outside air.

Voluntary actions to reduce dust pollution include, ceasing or
reducing the manipulation of soil in construction, Industrial,
and agricultural activities, and increasing the use of pollution
controls for soil stabilization, waste pits, stock piles, and
construction sites.


Hourly dust concentrations are available on the denr web Page
http://denr.SD.Gov/des/aq/aarealtime.Aspx




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