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SOUTH DAKOTA Department of
Agriculture & Natural Resources

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Air Quality

 

Air Quality Alert - High Winds
January 17, 2020
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: January 17, 2020  2:30 AM MST 
Date Issued for:

January 17, 2020  3:00 PM MST

Date and Time Cancelled: January 18, 2020  5:00 AM MST
PM Concentrations location: Credit Union
Weather Observations:  Rapid CIty Regional Airport

Time

PM10
Concentration

Wind Speed

Direction

Peak Wind

Precipitation

(military)

(Credit Union -ug/m3)

(mph)

 

(mph >30)

(inches)

01:00

95.3 8 ESE   NA

02:00

97.7 14 SSE   NA

03:00

99.9 9 E   NA

04:00

93.1 9 SE   NA

05:00

83.6 16 SSE   NA

06:00

73.8 17 S   NA

07:00

63 13 SE   NA

08:00

59.3 10 S   NA

09:00

52.7 7 SE   NA

10:00

40.7 12 S   NA

11:00

66.2 9 S   NA

12:00

121.9 7 SE   NA

13:00

141.3 0 Calm   NA

14:00

217.2 24 N 32 NA

15:00

220.4 40 NNW 56 NA

16:00

368.5 45 NNW 62 NA

17:00

58.8 39 N 58 NA

18:00

96.2 49 N 63 NA

19:00

41 37 NNW 51 NA

20:00

132.3 32 NNW 46 NA

21:00

101.6 37 NNW 59 NA

22:00

64.4 35 NNW 54 NA

23:00

118.2 25 NNW 38 NA

24:00

61.5 30 NNW 44 NA

Averages

107 22      

 

PM10 24 hour Concentration = 107 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

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