1. ND Weekly Drought Update
Adnan Akyuz, Ph.D.
NDSU, AES
State Climatologist
Updated 3/15/2018

2. Divisional Precipitation Anomalies (Departures from Normal)
Fall 2017: September-November
Winter : December-February
Negative numbers indicate drier than long-term ( ) average

3. Divisional Temperature Anomalies (Departures from Normal)
Fall 2017: September-November
Winter : December-February
Positive numbers indicate warmer than the long-term ( ) average

4. 30-Day Precipitation
Total Accumulation
% of Normal

5. Long Term Precipitation % of Normal
60 Days
90 Days

6. (% Change from previous week)
Cumulative % area
(% Change from previous week) D1
62%
(-4%)
None 3%
(0%) D2 9%
(+4%) DO
97%
(0%)

7. State Coverage and Intensity

8. Drought Change
One-week Change
4-week Change

9. Drought Severity and Coverage Index (Statewide)
329
(Aug 8, 2006)
295
(Aug 8, 2017)
163
(+4)
*Drought Severity and Coverage Index = DOx1+D1x2+D2x3+D3x4+D4x5
*Akyuz (2007)

10. Accumulated Drought Severity and Coverage Index (Statewide)
7917
(+167)
9,530
10,642
9653
19,319
2116
1714
*Numbers indicate the area under the DSCI Index Curve
*Akyuz (2017)

11. Soil Moisture and Snowpack
Soil Moisture Departure from Normal
Snow Water Equivalence
1-2”
2-4”
Trace
(40mm= 1.57”)

12. 7-day Forecast* Thu 6am, Mar 15 through Thu 6am, Mar 22
*College of DuPage
Next Generation Weather Lab (Displayed with permission)

13. 14-day Forecast* Thu 00am, Mar 15 through Thu 00am, Mar 29
*College of DuPage
Next Generation Weather Lab (Displayed with permission)

14. Medium Range Forecast
Week 3-4 Precipitation
Week 3-4 Temperature

15. 3-Mounth Outlook: April through June
Precipitation
Temperature