SOUTH DAKOTA Department of
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Air Quality

 

Air Quality Alert - High Winds
November 27, 2017
(PM10 Concentration and Meteorological Observations)
Click here for a graphical representation

Date and Time Issued: November 27, 2017   3:58 AM MST 
Date Issued for:

November 27, 2017   2:00 PM MST

Date and Time Cancelled: November 27, 2017   8:00 PM MST
PM Concentrations location: Credit Union
Weather Observations:  Ellsworth Air Force Base

Time

PM10
Concentration

Wind Speed

Direction

Peak Wind

Precipitation

(military)

(Credit Union -ug/m3)

(mph)

 

(mph >30)

(inches)

01:00

-0.1 5.8 ESE   NA

02:00

0.0 10.4 WSW   NA

03:00

0.0 9.2 SW   NA

04:00

8.2 15.0 NW   NA

05:00

6.0 19.6 W   NA

06:00

3.6 20.7 W   NA

07:00

3.6 26.5 WSW 34.5 NA

08:00

3.3 16.1 W   NA

09:00

5.5 12.7 W   NA

10:00

6.0 13.8 WSW   NA

11:00

5.6 3.5 W   NA

12:00

6.8 19.6 WSW   NA

13:00

5.5 20.7 SW   NA

14:00

6.7 17.3 NNW   NA

15:00

225.4 31.1 NNW 42.6 0.00 IN

16:00

32.5 36.8 NNW 52.9 NA

17:00

28.3 32.2 NNW 43.7 NA

18:00

3.8 28.8 NNW 34.5 NA

19:00

7.0 24.2 NNW 32.2 NA

20:00

4.3 11.5 WNW   NA

21:00

1.1 16.1 NNW   NA

22:00

3.9 18.4 NW   NA

23:00

3.0 19.6 NW   NA

24:00

3.0 18.4 NW   NA

Averages

15.5 18.7      

 

PM10 24 hour Concentration = 15.5 ug/m3 Credit Union (West Rapid City)

PM10 24 hour Standard = 150 ug/m3

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