Adnan Akyuz, Ph.D. NDSU, AES State Climatologist Updated 2/22/2018 Drought Conditions Adnan Akyuz, Ph.D. NDSU, AES State Climatologist Updated 2/22/2018

Divisional Precipitation Anomalies (Departures from Normal) Fall 2017: September-November Winter 2017-18: December-January Negative numbers indicate drier than long-term (1901-2000) average

Divisional Temperature Anomalies (Departures from Normal) Fall 2017: September-November Winter 2017-18: December-January Positive numbers indicate warmer than the long-term (1901-2000) average

30-Day Precipitation Total Accumulation % of Normal

Long Term Precipitation % of Normal 60 Days 90 Days

(% Change from previous week) Cumulative % area (% Change from previous week) D1 65% (0%) None 3% (0%) D2 4% (0%) DO 97% (0%)

State Coverage and Intensity

Drought Change One-week Change 4-week Change

Drought Severity and Coverage Index (Statewide) 329 (Aug 8, 2006) 295 (Aug 8, 2017) 166 (0) *Drought Severity and Coverage Index = DOx1+D1x2+D2x3+D3x4+D4x5 *Akyuz (2007)

Accumulated Drought Severity and Coverage Index (Statewide) 9,530 10,642 19,319 9653 2116 7246 1714 *Numbers indicate the area under the DSCI Index Curve *Akyuz (2017)

7-day Forecast Fri 7am, Feb 23 through Fri 7am, Mar 2

Medium Range Forecast 8-14 Day Precipitation 8-14 Day Temperature

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

3-Mounth Outlook: Mar through May Precipitation Temperature