1. State Climate Office Weekly Drought Update
Adnan Akyuz, Ph.D.
NDSU, AES
State Climatologist
Updated 7/18/2019

2. US Drought Monitor

3. Divisional Precipitation Anomalies and Rankings
May 2019 (65th Driest)
Spring 2019 (42nd Driest)
-1.09”
22th
-1.07”
21st
-0.19”
36th
-1.81”
11th
-2.05”
10th
-1.36”
24th
0.19”
78th
-0.09”
68th
-0.55”
51st
0.12”
70th
-0.64”
47th
0.20”
69th
1.07”
99th
0.77”
94th
0.73”
85th
0.62”
78th
0.69”
88th
1.22”
94th
Negative numbers indicate drier than long-term ( ) average.
Lower rankings indicate historically drier conditions on record (125 years total).

4. Divisional Temperature Anomalies and Rankings
May 2019 (11th Coolest)
Spring 2019 (29th Coldest)
-1.3F
44th
-1.6F
46th
-1.7F
38th
-1.3F
44th
-1.6F
46th
-1.7F
38th
-2.4F
35th
-2.4F
35th
-2.8F
27th
-3.4F
16th
-2.8F
27rd
-3.4F
16th
-3.5F
21st
-3.3F
20th
-3.5F
21st
-3.3F
20th
-4.2F
9th
-4.2F
9th
Negative numbers indicate cooler than long-term ( ) average.
Lower rankings indicate historically cooler conditions on record (124 years total).

5. 30-Day Precipitation
Total Accumulation
% of Normal
(NDAWN Images)

6. Long Term Precipitation % of Normal
60 Days
90 Days
(HPRCC Images)

7. (% Change from previous week)
Cumulative % area
(% Change from previous week) DO
25%
(-14%) D1 4%
(-7%)
None
74%
(+13%)

8. Drought Change
1-week Change
4-week Change

9. State Coverage and Intensity

10. Drought Severity and Coverage Index (Statewide)
295
(Aug 8, 2017)
329
(Aug 8, 2006) 31
(-22)
Drought Severity and Coverage Index = ADO + 2AD1 + 3AD2 + 4AD3 + 5AD4 (Akyüz, 2007)
Where: A is a % of the state covered under the corresponding D-severity

11. Accumulated Drought Severity and Coverage Index (Statewide)
10,642
19,319
9,530
9653
2116
11,991
362
1714
17 weeks of no drought
*Numbers indicate the area under the DSCI Index Curve
*Akyuz (2017)

12. Soil Moisture and Bare Soil Temperature
Soil Moisture Departure from Normal
5-week Evaporative Demand Drought Index (EDDI)
(40mm = 1.6”)

13. Weekly Drought Impact Collection Based on the NDSU Weekly Survey of Extension Offices
Ward: (Paige Brummund): Mildly Dry. Some areas of the county have received inches of rain that has helped provide some temporary relief to keep crops and rangeland growing. However, other areas have missed this moisture completely and remain extremely dry. Most areas have received 50% or below their average rainfall for this time of year. Producers in the dry areas are concerned that conditions will rapidly deteriorate when temperature rise. Hay production is at approximately 50% of average yields so far.
Divide: (Brandon Biwer): Moderately Dry. Significant rains have brought relief to the drought conditions in Divide County.
Williams: (Clair Keene): Mildly Dry. Much of the county got " rain on 7/8. Rain fell over most of the day but heavy downpours at times. Recent rain has generally helped crops unless the fields were so dry that emergence was spotty. Will help get a second cutting of alfalfa if first cut was already taken.

14. Weekly Drought Impact Collection Based on the NDSU Weekly Survey of Extension Offices
McHenry: (Rachel Wald): Moderately Dry. A lot of the crops and range land the damage is done due to lack of moisture before the significant rains we have had in the last 10 days. Bean crops are short and not developing well. Good growing degree days are needed to catch up. A lot of the hay/pasture land is thin and will definitely affect the longevity of the grazing season for many producers.
Walsh: (Brad Brummond): Moderately Dry. Grasshoppers, blister beetles and short small grains and pastures.
Grand Forks: (Carrie Knutson): Mildly Wet.

15. Weekly Drought Impact Collection Based on the NDSU Weekly Survey of Extension Offices
McLean: (Calla Edwards): Spotty rain showers have helped conditions in some parts of the county. A swath through the middle received several inches of rain however most of the area received very little moisture.
Oliver: (Rick Schmidt): Moderately Dry. In parts of the county the crops and grasses are showing a lot of heat stress and drying up. The grass stands are short and yielding about 1100 pounds per acre. We have been getting little showers but the total amounts are not adding up. The small grains are looking good, but warm season crops are stressed.
Dunn: (Greg Benz): Mildly Dry
Mercer: (craig askim): Near Normal. Anywhere from 1.5 to 3 inches across the county this week. Still some areas that are slightly dry but things have improved over the last week.

16. Weekly Drought Impact Collection Based on the NDSU Weekly Survey of Extension Offices
Kidder: (Penny Nester): Moderately Wet
Eddy: (karl hoppe): Mildly Dry.
Stutsman: (Alicia Harstad): Moderately Wet. Most of the county received about 2-3+" this past week. The areas that were a little on the drier side welcomed the rain whereas the areas that were mildly wet are now experiencing drown out in area. Haying and spraying has become a challenge with rain falling on hay windrows and inability to get a sprayer across the fields.
Foster: (karl hoppe): Near Normal. Last Week's Rainfall has crops and pastures looking better. Pasture and Crop growth is still behind from lack of rain in May and June. Rainfall is heavily dependent on spotty thundershowers. Without persistent rains crops and pastures will become droughty.

17. Weekly Drought Impact Collection Based on the NDSU Weekly Survey of Extension Offices
Slope: (Shelby): Near Normal.
Billings/Stark: (Kurt Froelich): Mildly Dry. Some areas mildly wet, some areas mildly dry, overall near normal to mildly dry.
Emmons: (Emily A. Trzpuc). Severely Wet. We got anywhere from 5-8 inches of rain throughout the county. Due to this flooding has occurred and damage to crops and pastures have been reported.
Morton: (Renae Gress): Mildly Wet.
McIntosh: (Crystal Schaunaman): Severely Wet.

18. Corn GDD Accumulation Forecast*
Sep 27
This graphic is created based on 90-day corn planted in Cass county on May 15. It shows estimated date of silking and maturity with respect to hard freeze climatology.
Jul 27
Oct 9
*U2U Decision Support Tools:

19. Crassland Productivity Forecast (June-August)
*These three maps
show the forecasted percent change in grassland production compared to a county’s
34-year average.
USDA Northern Plains Climate Hub:

20. Drought Pictures (None Submitted This Period)

21. 7-Day Forecast (Through noon Thu, July 25)

22. 14-Day Forecast (Through noon Thu, Aug 1)

23. Week 3 to 4 Forecast
Precipitation
Temperature

24. Summer (Aug-Oct) 2019 Outlook
Precipitation
Temperature