110  
AXUS73 KFSD 081401  
DGTFSD  
IAC021-035-041-059-119-141-143-149-167-MNC133-SDC027-083-099-125-  
127-151415-  
 
DROUGHT INFORMATION STATEMENT  
NATIONAL WEATHER SERVICE SIOUX FALLS SD  
901 AM CDT THU APR 8 2021  
 
...SEVERE TO EXTREME DROUGHT CONDITIONS PERSIST ACROSS PORTIONS OF  
EXTREME SOUTHEASTERN SOUTH DAKOTA AND NORTHWESTERN IOWA...  
 
.SYNOPSIS:  
 
.DROUGHT INTENSITY AND EXTENT: ACCORDING TO THE APRIL 8 RELEASE OF  
THE U.S. DROUGHT MONITOR, DROUGHT CONDITIONS ACROSS EXTREME  
SOUTHEASTERN SOUTH DAKOTA AND NORTHWESTERN IOWA REMAIN IN THE  
EXTREME (D3) AND SEVERE (D2) CATEGORIES. COUNTIES IN EXTREME (D3)  
DROUGHT INCLUDE NORTHERN CLAY, MOST OF O'BRIEN, AND A SMALL PART  
OF EASTERN SIOUX COUNTIES IN NORTHWEST IOWA. SEVERE (D2) DROUGHT  
IS INDICATED IN PARTS OF MINNEHAHA, TURNER, LINCOLN, CLAY, AND  
UNION COUNTIES IN SOUTHEASTERN SOUTH DAKOTA, ROCK COUNTY IN  
SOUTHWEST MINNESOTA, AND LYON, OSCEOLA, DICKINSON, SIOUX, O'BRIEN,  
CLAY, PLYMOUTH, CHEROKEE, AND BUENA VISTA COUNTIES IN NORTHWEST  
IOWA. MODERATE DROUGHT (D1) OR ABNORMALLY DRY (D0) CONDITIONS ARE  
SHOWN ACROSS ALL OF THE REST OF THE NWS SIOUX FALLS FORECAST AREA.  
 
.PRECIPITATION: EVEN WITH NORMAL TO ABOVE NORMAL PRECIPITATION FOR  
THE LAST 2 TO 4 WEEKS, LONG TERM DEFICITS REMAIN VERY LARGE GOING  
BACK 6 TO 12 MONTHS ACROSS THE REGION. PRECIPITATION IN THE LAST  
6 MONTHS IS STILL 1 TO 2 INCHES BELOW NORMAL, WITH 12 MONTH  
DEFICITS REMAINING IN THE 10 TO 12 INCH RANGE IN THE D2 AND D3  
AREAS. DEFICITS IN THE D0 AND D1 AREAS ARE MORE IN THE 2 TO 8 INCH  
RANGE OVER THE LAST 12 MONTHS.  
 
.TEMPERATURE: TEMPERATURES FOR THE LAST 30 DAYS HAVE BEEN 4 TO 10  
DEGREES ABOVE NORMAL FOR THE REGION. SINCE THE BEGINNING OF 2021,  
TEMPERATURES HAVE AVERAGED 1 TO 4 DEGREES ABOVE NORMAL.  
 
.HYDROLOGIC CONDITIONS: CURRENT STREAMFLOW IS IN THE 10TH TO 20TH  
PERCENTILE (BELOW TO MUCH BELOW NORMAL) ON PARTS OF THE  
VERMILLION, BIG SIOUX, AND LITTLE SIOUX RIVERS. THE REST OF THE  
AREA IS SEEING STREAMFLOWS IN THE 30TH TO 50TH PERCENTILE, WHICH  
IS NORMAL TO SLIGHTLY BELOW NORMAL.  
 
.SOIL MOISTURE AND GROUND WATER CONDITIONS: SOIL MOISTURE IS  
RUNNING 2 TO 3 INCHES BELOW NORMAL IN THE D2 AND D3 AREAS, AND 1  
TO 2 INCHES BELOW NORMAL ACROSS THE REST OF THE REGION. GROUND  
WATER LEVELS IN THE BIG SIOUX AQUIFER JUST NORTH OF SIOUX FALLS  
ARE RUNNING 3 TO 4 FEET LOWER THAN NORMAL.  
 
.SUMMARY OF IMPACTS:  
 
.AGRICULTURAL IMPACTS: PLANTING SEASON HAS NOT YET BEGUN, SO THERE  
IS NO IMPACT TO ROW CROPS AT THIS TIME. GRASSLANDS AND PASTURES  
ARE SHOWING SOME STRESS AND REDUCED FORAGE PRODUCTION.  
 
.HYDROLOGIC IMPACTS: NONE REPORTED.  
 
.FIRE HAZARDS: OVER THE PAST TWO WEEKS, THE GRASSLAND FIRE DANGER  
HAS REACHED VERY HIGH OR EVEN EXTREME LEVELS, WITH SEVERAL GRASS  
FIRES REPORTED.  
 
.DROUGHT MITIGATION ACTIONS: NONE REPORTED.  
 
.LOCAL DROUGHT OUTLOOK: THE LATEST ONE MONTH DROUGHT OUTLOOK FOR  
APRIL AND THE SEASONAL DROUGHT OUTLOOK FOR APRIL THROUGH JUNE  
SHOW THAT THE DROUGHT IS EXPECTED TO PERSIST INTO EARLY SUMMER.  
THE LATEST 1 MONTH AND 3 MONTH CLIMATE OUTLOOKS FROM THE CLIMATE  
PREDICTION CENTER SHOW INCREASED PROBABILITIES OF ABOVE NORMAL  
TEMPERATURES, WITH EQUAL CHANCES OF ABOVE NORMAL, NORMAL, OR BELOW  
NORMAL PRECIPITATION.  
 
.NEXT ISSUANCE DATE: THE PRODUCT WILL BE UPDATED AROUND APRIL 15TH.  
 
.RELATED WEB SITES:  
 
ADDITIONAL INFORMATION ON CURRENT DROUGHT CONDITIONS MAY BE FOUND  
AT THE FOLLOWING WEB ADDRESSES:  
 
US DROUGHT MONITOR: HTTPS://DROUGHTMONITOR.UNL.EDU  
 
US DROUGHT INFORMATION SYSTEM: HTTPS://WWW.DROUGHT.GOV  
 
CLIMATE PREDICTION CENTER: HTTPS://WWW.CPC.NCEP.NOAA.GOV  
 
LOCAL WEATHER INFORMATION: HTTPS://WWW.WEATHER.GOV/FSD  
 
HIGH PLAINS REGIONAL CLIMATE CENTER (HPRCC):  
HTTPS://HPRCC.UNL.EDU  
 
MIDWESTERN REGIONAL CLIMATE CENTER (MRCC):  
HTTPS://MRCC.ILLINOIS.EDU  
 
SOUTH DAKOTA STATE CLIMATE OFFICE:  
HTTPS://CLIMATE.SDSTATE.EDU  
 
MINNESOTA STATE CLIMATOLOGY OFFICE:  
HTTP://CLIMATE.UMN.EDU  
 
IOWA CLIMATOLOGY BUREAU:  
HTTPS://IOWAAGRICULTURE.GOV/CLIMATOLOGY-BUREAU  
 
USDA CROP INFORMATION: HTTPS://WWW.NASS.USDA.GOV/INDEX.ASP  
 
SDSU EXTENSIONS: HTTPS://EXTENSION.SDSTATE.EDU  
 
DROUGHT IMPACT REPORTER: HTTPS://DROUGHTREPORTER.UNL.EDU/MAP  
 
ADDITIONAL WATER AND RIVER INFORMATION:  
 
NWS: HTTPS://WATER.WEATHER.GOV  
 
OWP: HTTPS://WATER.NOAA.GOV  
 
US GEOLOGICAL SURVEY (USGS): HTTPS://WATER.USGS.GOV  
 
US ARMY CORPS OF ENGINEERS (USACE): HTTPS://WWW.USACE.ARMY.MIL  
 
.ACKNOWLEDGMENTS:  
 
THE DROUGHT MONITOR IS A MULTI-AGENCY EFFORT INVOLVING THE  
NATIONAL WEATHER SERVICE AND NATIONAL CENTERS FOR ENVIRONMENTAL  
INFORMATION, THE USDA, STATE AND REGIONAL CENTER CLIMATOLOGISTS  
AND THE NATIONAL DROUGHT MITIGATION CENTER. INFORMATION FOR THIS  
STATEMENT HAS BEEN GATHERED FROM NWS AND FAA OBSERVATION SITES,  
STATE COOPERATIVE EXTENSION SERVICES, THE USDA, USACE AND USGS.  
 
.CONTACT INFORMATION:  
 
IF YOU HAVE QUESTIONS OR COMMENTS ABOUT THIS DROUGHT INFORMATION  
STATEMENT, PLEASE CONTACT:  
 
NATIONAL WEATHER SERVICE  
MIKE GILLISPIE - SENIOR SERVICE HYDROLOGIST  
26 WEATHER LANE  
SIOUX FALLS, SD 57104  
 
PHONE: 605-330-4247  
EMAIL: MICHAEL.GILLISPIE@NOAA.GOV  
 

 
 
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