Adnan Akyuz, Ph.D. NDSU, AES State Climatologist Updated 9/28/2017 Drought Conditions Adnan Akyuz, Ph.D. NDSU, AES State Climatologist Updated 9/28/2017

Into the Drought 2017 for ND Period Precipitation Ranking Fall 2016 14th Wettest Winter 2016-17 6th Wettest September through February 9th Wettest 6-mo Period March 2017 48th Driest April 2017 34th Driest May 2017 15th Driest Spring 2017 9th Driest Spring June 14th Driest July 11th Driest August 21st Wettest Summer 19th Driest March through August 8th Driest

Precipitation Accumulation Since March 1 in Select Locations in ND (Ranking) Precipitation Totals Since March 1st Weekly Change Fargo 16th Driest (Record History: 137 years) 2 Grand Forks 58th Driest (Record History: 125 years) 23 Bismarck 47th Driest (Record History: 143 years) 11 Williston 43rd Driest (Record History: 124 years) 4 Minot 12th Driest (Record History: 113 years) Bowman 11th Driest (Record History: 103 years) Crosby 11th Driest (Record History: 111 years) Bottineau 43rd Driest (Record History: 121 years) 5

Precipitation Accumulation Since June 1 in Select Locations in ND (Ranking) Precipitation Totals Since June 1st Weekly Change Fargo 30th Driest (Record History: 137 years) 13 Grand Forks 73rd Driest (Record History: 125 years) 7 Bismarck 49th Wettest (Record History: 143 years) 5 Williston 64th Driest (Record History: 124 years) -4 Minot 22th Driest (Record History: 113 years) 4 Bowman 8th Driest (Record History: 103 years) -1 Crosby 15th Driest (Record History: 111 years) 2 Bottineau 54nd Driest (Record History: 121 years) 6

7-Day Rainfall total

30-Day Rainfall Total Accumulation % of Normal

Long Term Precipitation % of Normal 60 Days 90 Days

(% Change from previous week) Cumulative % area (% Change from previous week) D1 63% (-25) DO 89% (-11) D4 <1% (0) D3 3% (0) 11% (11) D2 23% (-9)

State Coverage and Intensity

Drought Change One-week Change 4-week Change

State Coverage and Intensity (Time Scale) 329 (Aug 8, 2006) 295 (Aug 8, 2017) 179 (-45) *Drought Severity and Coverage Index = DOx1+D1x2+D2x3+D3x4+D4x5 *Akyuz (2007)

7-day Forecast Mon 7am, Sep 28 through Mon 7am, Oct 5

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: October through December Precipitation Temperature