Drought Information Statement
Issued by NWS Sioux Falls, SD

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2
000
AXUS73 KFSD 301533
DGTFSD
SDC005-015-035-061-073-077-079-087-097-111-281500-

DROUGHT INFORMATION STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1030 AM CDT THU APR 30 2015

...SEVERE DROUGHT DEVELOPING IN CENTRAL SOUTH DAKOTA...

SYNOPSIS...

APRIL CONTINUED THE VERY DRY START TO THE YEAR FOR MUCH OF THE
REGION. THE DRIEST AREAS WERE FROM AROUND THE CENTRAL JAMES RIVER
BASIN TO THE MISSOURI RIVER NORTH OF INTERSTATE 90...WHERE MANY
AREAS RECEIVED LESS THAN 25 PERCENT OF NORMAL RAINFALL IN APRIL. FOR
THE YEAR-TO-DATE...THESE AREAS HAVE SEEN LESS THAN 50 PERCENT OF
NORMAL PRECIPITATION. ADJACENT AREAS OF SOUTHEASTERN SOUTH DAKOTA...
ALL OF SOUTHWEST MINNESOTA...AND PARTS OF NORTHWEST IOWA AND
NORTHEAST NEBRASKA HAVE ALSO BEEN ON THE DRY SIDE...JUST NOT QUITE
AS SEVERELY. PRECIPITATION IN THESE AREAS HAS AVERAGED 25 TO 75
PERCENT OF NORMAL FOR APRIL...AND 50 TO 75 PERCENT OF NORMAL FOR THE
YEAR-TO-DATE.

THE UNITED STATES DROUGHT MONITOR HAS CLASSIFIED THE FOLLOWING SOUTH
DAKOTA COUNTIES AS BEING IN SEVERE DROUGHT /D2/...

EXTREME NORTHERN BRULE...JERAULD...BEADLE...SOUTHWESTERN
KINGSBURY...SANBORN...MINER...WESTERN LAKE...NORTHERN MCCOOK...
NORTHERN HANSON...AND EXTREME NORTHEASTERN DAVISON.

MODERATE DROUGHT /D1/ CONDITIONS EXIST ACROSS THE REST OF
SOUTHEASTERN SOUTH DAKOTA...ALL OF SOUTHWESTERN MINNESOTA...THE
WESTERN PORTIONS OF LYON...SIOUX...AND PLYMOUTH COUNTIES IN
NORTHWESTERN IOWA...AND DIXON COUNTY NEBRASKA.

ABNORMALLY DRY /D0/ CONDITIONS EXIST IN DAKOTA COUNTY NEBRASKA...
AND THE REST OF NORTHWESTERN IOWA...EXCEPT FOR EASTERN WOODBURY...
SOUTHERN CHEROKEE...IDA...AND BUENA VISTA COUNTIES.

SUMMARY OF IMPACTS...

STATE AND LOCAL ACTIONS.

NUMEROUS COUNTIES HAVE ENACTED BURN BANS.

SOIL MOISTURE CONDITIONS.

ALL AREAS OF EASTERN SOUTH DAKOTA AND SOUTHWESTERN MINNESOTA NORTH
OF INTERSTATE 90 ARE SHOWING CALCULATED SOIL MOISTURE DEFICITS OF 3
TO 4 INCHES. THE REST OF THE REGION CLASSIFIED IN D0 OR D1 DROUGHT
HAVE SOIL MOISTURE DEFICITS OF 1 TO 3 INCHES. AS OF APRIL 26...
STATEWIDE IN SOUTH DAKOTA...69 PERCENT OF TOP SOIL IS RATED AS SHORT
OR VERY SHORT WITH 31 PERCENT ADEQUATE. MINNESOTA SHOWS 31 PERCENT
SHORT OR VERY SHORT AND 69 PERCENT ADEQUATE OR SURPLUS. IOWA SHOWS
10 PERCENT SHORT AND 90 PERCENT ADEQUATE OR SURPLUS.

GROUNDWATER CONDITIONS.

WATER LEVELS IN USGS WELLS ARE SHOWING BELOW NORMAL LEVELS AT ALL 4
SITES IN THE MIDDLE BIG SIOUX BASIN. AT LYONS...THE CURRENT WATER
LEVEL IS 7.38` BELOW GROUND LEVEL WHICH IS IN THE 10TH TO 25TH
PERCENTILE. AT BALTIC...THE WATER LEVEL IS 6.51` BELOW GROUND
LEVEL...WHICH IS IN THE 25TH TO 50TH PERCENTILE. FOR THE TWO WELLS
NEAR RENNER...WELL NUMBER 1 IS AT 8.82` BELOW GROUND LEVEL AND WELL
NUMBER 2 IS AT 11.79` BELOW GROUND LEVEL. BOTH OF THESE ARE IN THE
10TH TO 25TH PERCENTILE. ALL OF THESE WELLS ARE IN AREAS CLASSIFIED
AS MODERATE DROUGHT /D1/.

RIVER AND STREAMFLOW CONDITIONS.

FIRESTEEL CREEK...WHICH IS ON THE SOUTHERN EDGE OF THE SEVERE
DROUGHT /D2/ AREA...IS CURRENTLY SHOWING ZERO FLOW...WHICH TIES FOR
THE DRIEST ON RECORD. THE MIDDLE JAMES RIVER IS AROUND THE 25
PERCENT OF NORMAL...AND THE LOWER JAMES RIVER IS BETWEEN 25 AND 45
PERCENT OF NORMAL. THE VERMILLION RIVER IS SHOWING FLOWS BETWEEN 20
AND 70 PERCENT OF NORMAL.THE MIDDLE AND LOWER PORTIONS OF THE BIG
SIOUX RIVER HAVE FLOWS THAT ARE 40 TO 60 PERCENT OF NORMAL. MOST
RIVERS IN SOUTHWEST MINNESOTA HAVE FLOWS THAT ARE 25 TO 40 PERCENT
OF NORMAL. IN NORTHWEST IOWA...THE UPPER PORTIONS OF THE ROCK...
FLOYD AND LITTLE SIOUX RIVERS HAVE FLOWS THAT ARE 25 TO 40 PERCENT
OF NORMAL. THE LOWER PORTIONS OF THESE RIVERS...IN AREAS CLASSIFIED
AS D0 BETTER...HAVE FLOWS THAT ARE NEAR TO ABOVE NORMAL.

AGRICULTURAL IMPACTS.

THERE ARE REPORTS OF WINTER KILL OF THE WINTER WHEAT CROP IN PARTS
OF CENTRAL SOUTH DAKOTA. STATEWIDE...WINTER WHEAT WAS RATED AT 33
PERCENT POOR OR VERY POOR COMPARED TO 23 PERCENT GOOD. PLANTING OF
SPRING WHEAT IN SOUTH DAKOTA IS 86 PERCENT COMPLETE COMPARED TO A 5-
YEAR AVERAGE OF 45 PERCENT. HOWEVER...EMERGENCE OF SPRING WHEAT HAS
BEEN SLOW AND UNEVEN WITH ONLY 10 PERCENT EMERGED COMPARED TO A 5-
YEAR AVERAGE OF 20 PERCENT. PASTURE AND FORAGE CONDITIONS ARE POOR
AND MANY STOCK PONDS ARE AT LOW LEVELS...WHICH IS DELAYING LIVESTOCK
TURNOUT IN MANY AREAS. THE DRY SOIL CONDITIONS ARE ALSO DELAYING THE
PLANTING OF CORN IN SOME AREAS. AS OF APRIL 26...STATEWIDE IN SOUTH
DAKOTA... CORN PLANTING WAS 16 PERCENT COMPLETED COMPARED TO A 5-
YEAR AVERAGE OF 9 PERCENT. IN MINNESOTA...CORN PLANTING WAS 38
PERCENT COMPLETED COMPARED TO A 5-YEAR AVERAGE OF 20 PERCENT. IN
IOWA...CORN PLANTING WAS 14 PERCENT COMPLETED COMPARED TO A 5-YEAR
AVERAGE OF 24 PERCENT.

FIRE DANGER HAZARDS.

AS OF THE MORNING OF APRIL 30TH...HIGH FIRE DANGER WAS REPORTED IN
BEADLE AND JERAULD COUNTIES IN SOUTH DAKOTA.

MODERATE FIRE DANGER WAS REPORTED WEST OF A LINE FROM VERMILLION
SOUTH DAKOTA TO MARSHALL MINNESOTA. LOW FIRE DANGER WAS REPORTED FOR
ALL OTHER AREAS EAST OF THAT LINE.

OVER THE PAST FEW WEEKS...THERE HAVE BEEN NUMEROUS DAYS OF VERY HIGH
TO EXTREME FIRE DANGER DUE TO THE DRYNESS...ABOVE NORMAL
TEMPERATURES...AND STRONG WINDS. GREEN-UP OF NATIVE GRASSES AND
CATTAILS HAS BEEN SLOW...AND EVEN SHORTER GRASSES SUCH AS BROME THAT
HAVE STARTED GREENING UP HAVE BEEN BURNING IN FIRES WHICH IS
INDICATIVE OF THE DRYNESS.

AS A REMINDER...CITIZENS SHOULD ALWAYS CHECK WITH LOCAL OFFICIALS IN
THEIR AREA BEFORE UNDERTAKING ANY OUTSIDE BURNING.

CLIMATOLOGICAL SUMMARY...

TEMPERATURES IN THE PAST 30 AND 60 DAYS HAVE AVERAGED 2 TO 6 DEGREES
ABOVE NORMAL FOR THE REGION. PRECIPITATION FOR APRIL HAS BEEN 1 TO 3
INCHES BELOW NORMAL FOR MOST AREAS...AND 2 TO 4.5 INCHES BELOW
NORMAL IN THE LAST 60 DAYS. FOR THE WATER YEAR...SINCE OCTOBER 1
2014...PRECIPITATION HAS BEEN 4 TO 8 INCHES BELOW NORMAL FOR THE
AREAS CLASSIFIED AS D1 OR D2.

PRECIPITATION/TEMPERATURE OUTLOOKS...

FOR THE NEXT 2 WEEKS...TEMPERATURES ARE EXPECTED TO BE NORMAL TO
ABOVE NORMAL. PRECIPITATION OUTLOOKS THROUGH MID MAY SHOW A SLIGHTLY
INCREASED PROBABILITY OF BEING ABOVE NORMAL AS WELL.

THE CLIMATE PREDICTION CENTER /CPC/ OUTLOOKS FOR THE MONTH OF MAY
AND THE SEASONAL OUTLOOK FOR MAY THROUGH JULY SHOW EQUAL CHANCES OF
ABOVE NORMAL...NORMAL...OR BELOW NORMAL TEMPERATURES AND
PRECIPITATION FOR THE ENTIRE REGION.

NORMAL AVERAGE MONTHLY TEMPERATURES FOR MAY RANGE FROM THE MID 50S
TO MID 60S. NORMAL MONTHLY PRECIPITATION FOR MAY IS AROUND 3 TO 4
INCHES.

HYDROLOGIC SUMMARY AND OUTLOOK...

THE LITTLE SIOUX RIVER IN NORTHWEST IOWA HAS A ROUGHLY 50 PERCENT
CHANCE OF REACHING FLOOD LEVELS IN MAY THROUGH JULY. THE REMAINDER
OF THE RIVER AND STREAMS HAVE A LESS THAN 50 PERCENT CHANCE OF
REACHING FLOOD LEVELS.

ON THE OTHER END OF THE RIVER FORECASTS...THE PROBABILITIES FOR
FALLING TO LOW OR VERY LOW LEVELS THROUGH MID SUMMER ARE HIGHER THAN
NORMAL FOR ALL OF THE AREA RIVERS AND STREAMS.

NEXT ISSUANCE DATE...

THIS PRODUCT WILL BE UPDATED ON THURSDAY MAY 28 UNLESS CONDITIONS OR
FORECASTS WARRANT AN EARLIER UPDATE.

.RELATED WEB SITES...

U.S. DROUGHT MONITOR...
   WWW.DROUGHTMONITOR.UNL.EDU
NOAA DROUGHT PAGE...
   WWW.DROUGHT.NOAA.GOV
MIDWESTERN REGIONAL CLIMATE CENTER /MRCC/...
   MRCC.ISWS.ILLINOIS.EDU
HIGH PLAINS REGIONAL CLIMATE CENTER /HPRCC/...
   WWW.HPRCC.UNL.EDU
SOUTH DAKOTA STATE CLIMATOLOGIST CLIMATE AND WEATHER INFORMATION...
   WWW.CLIMATE.SDSTATE.EDU/CLIMATE_SITE/CLIMATE.HTM
MINNESOTA CLIMATOLOGY WORKING GROUP...
   WWW.CLIMATE.UMN.EDU
IOWA CLIMATOLOGY BUREAU...
   WWW.IOWAAGRICULTURE.GOV/CLIMATOLOGY.ASP

ADDITIONAL RIVER INFORMATION...
   NWS - WWW.WEATHER.GOV/AHPS/
   USGS - WATER.USGS.GOV/
   USACE - WWW.NWD-MR.USACE.ARMY.MIL/RCC/

CLIMATE PREDICTION CENTER /CPC/...
   WWW.CPC.NOAA.GOV/

ACKNOWLEDGMENTS...

THE DROUGHT MONITOR IS A MULTI-AGENCY EFFORT INVOLVING NOAA/S NATIONAL WEATHER SERVICE
AND NATIONAL CLIMATIC DATA CENTER...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.

.QUESTIONS OR COMMENTS...

IF YOU HAVE ANY QUESTIONS OR COMMENTS ABOUT THIS DROUGHT INFORMATION PLEASE CONTACT...

MIKE GILLISPIE
SENIOR SERVICE HYDROLOGIST
NATIONAL WEATHER SERVICE
26 WEATHER LANE
SIOUX FALLS SD 57104

TELEPHONE 605-330-4248
E-MAIL MICHAEL.GILLISPIE@NOAA.GOV

$$

MG


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.