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SOUTH DAKOTA Department of
Agriculture & Natural Resources

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Air Quality

 

Air Quality Alert - High Winds
March 8, 2020
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: March 8, 2020  3:20 AM MDT 
Date Issued for:

March 8, 2020  Noon PM MST

Date and Time Cancelled: March 8, 2020  7:00 PM MDT
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

9.6 15 W   NA

02:00

6.1 8 S   NA

03:00

5.6 5 SW   NA

04:00

10 3 WNW   NA

05:00

193.2 3 W   NA

06:00

20.6 3 W   NA

07:00

12.7 0

Calm

  NA

08:00

8.1 8 SSW   NA

09:00

107.9 6 NNW   NA

10:00

94.8 28 N 36 NA

11:00

99.2 33 N 44 NA

12:00

78.4 33 N 46 NA

13:00

126.7 32 N

44

NA

14:00

204.2 41 N 53 NA

15:00

166.2 40 N 52 NA

16:00

115.4 36 N 48 NA

17:00

89.2 35 N 46 NA

18:00

92.4 22 N 31 NA

19:00

127.2 22 N 31 NA

20:00

106.9 17 N 31 NA

21:00

73.3 12 N   NA

22:00

90.7 12 N   NA

23:00

84.1 12 N   NA

24:00

58.1 6 NNE   NA

Averages

82.5 8 18    

 

PM10 24 hour Concentration = 82.5 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

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