Drought Information Statement
Issued by NWS Rapid City, SD

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AXUS73 KUNR 272031
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Drought Information Statement
National Weather Service Rapid City SD
230 PM MDT Sat May 27 2017

...Drought Conditions Worsened Across Western South Dakota and
Northeastern Wyoming...

SYNOPSIS...

Drought conditions have worsened across the area over the past
couple of weeks. The current drought conditions reflect long-term
moisture deficits dating back to last summer, the recent lack of
rainfall, and include the lower than average streamflows in the
Black Hills.

At the end of May, Moderate (D1) drought conditions only covered two
small areas in northeastern Wyoming; a small area in Crook County,
southwest of Sundance and another area in northeastern Weston County
around Newcastle. In South Dakota, a small area of Moderate (D1)
drought clipped the far northeastern corner of Ziebach County.

Abnormally dry (D0) conditions covered the rest of Crook and Weston
Counties as well as eastern Campbell Counties in Wyoming. In South
Dakota, Abnormally dry (D0) conditions covered the entire
northwestern corner of the state.

SUMMARY OF IMPACTS...

* Soil moisture is quickly drying out, especially with the recent
  windy conditions.
* Stock ponds and dugouts are still low, which in impacting the
  water quality and quantity for cattle and other animals.

CLIMATE SUMMARY...

Temperatures and precipitation in April were average to slightly
above average across the entire area. So far in May, temperatures
have been around average and precipitation has been below average.

PRECIPITATION/TEMPERATURE OUTLOOK...

Sea surface temperatures in the tropical Pacific Ocean are above
average, indicating a possible developing El Nino. The outlook for
the summer and fall is for a continuation of the relatively warm
waters, with odds favoring El Nino conditions by later this summer.
If El Nino develops this summer, that would tilt the odds toward
increased chances of above average rainfall, with temperatures near
average.

The three month outlook for June, July, and August calls for
increased odds toward above-average precipitation and near average
temperatures.

HYDROLOGIC SUMMARY AND OUTLOOK...

According to the Bureau of Reclamation, reservoir levels are around
average for this time of the year. Streamflows according to the U.S.
Geological Survey have been around normal. Links to hydrologic data
from the U.S. Geological Survey and Bureau of Reclamation can be
found below.

NEXT ISSUANCE...

The next drought statement will be issued in June unless conditions
change sooner.

&&

ACKNOWLEDGMENTS...

The drought monitor is a multi-agency effort involving NOAA`s
National Weather Service and National Centers for Environmental
Information, United States Department of Agriculture (USDA), State
and Regional Climate Centers, and the National Drought Mitigation
Center at the University of Nebraska-Lincoln. Information for this
statement has been gathered from the NWS and Federal Aviation
Administration observing sites, State Cooperative Extension
Services, United States Department of Agriculture, Bureau of
Reclamation, and the United States Geological Survey.

QUESTIONS OR COMMENTS...

If you have any questions or comments about this drought
information, please contact...

Melissa Smith
Service Hydrologist
National Weather Service
300 East Signal Drive
Rapid City South Dakota 57701
605-341-9271
melissa.smith@noaa.gov

RELATED WEB SITES...

U.S. Drought page...
http://www.drought.gov

South Dakota Climate and Weather Information...
http://climate.sdstate.edu

Wyoming Water and Climate Information...
http://www.wrds.uwyo.edu/

U.S. Drought Monitor...
http://droughtmonitor.unl.edu

River and Reservoir Information
NWS - http://water.weather.gov/ahps
USGS - http://www.usgs.gov/water
USBR - http://www.usbr.gov/gp/lakes_reservoirs

Climate Prediction Center...
http://www.cpc.ncep.noaa.gov

Black Hills Fire Restrictions...
http://blackhillsfirerestrictions.com

$$



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