National Weather Service

Watches, Warnings & Advisories
NWS Homepage

2 products issued by NWS for: Keystone SD
Share |

Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Rapid City SD
200 PM MDT Thu Apr 27 2017

Northern Black Hills-Central Black Hills-Custer Co Plains-
Oglala Lakota-Hermosa Foot Hills-Western Crook-
Wyoming Black Hills-
200 PM MDT Thu Apr 27 2017

This Hazardous weather outlook is for portions of the Black Hills
of South Dakota...western South Dakota...northeast Wyoming...and
the Black Hills of Wyoming.

.DAY ONE...This Afternoon and Tonight

Rain and snow will spread into the area this afternoon, becoming
all snow this evening. The snow will continue through tonight.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Snow will end Friday afternoon. Total snow accumulation of 1 to 3
inches is expected.


Spotter activation will not be needed today.

&&Total snow

Stay tuned to NOAA weather radio for further updates...or check
our web site at


Winter Weather Advisory

National Weather Service Rapid City SD
821 PM MDT Thu Apr 27 2017

...Winter Weather to Return to Parts of Northeastern Wyoming and
Southwestern South Dakota Tonight Into Friday...

.Another spring storm system will move through portions of the
northern and central high plains tonight and Friday. Low pressure
will strengthen across the Northern Rockies and shift into
eastern Wyoming tonight. Rain and areas of snow will continue to
develop through the evening hours across northeast Wyoming and
southwest South Dakota, then transition to all snow overnight.
Snow will continue into Friday morning, then diminish Friday
afternoon as the low pressure system slides southeast of the area.
The heaviest snow is expected to fall across southern Campbell
County, where 5 to 10 inches of heavy wet snow is expected by
Friday afternoon.

Central Black Hills-
Including the cities of Hill City and Mt Rushmore
821 PM MDT Thu Apr 27 2017


The National Weather Service in Rapid City has issued a Winter
Weather Advisory for snow, which is in effect until 6 PM MDT

* TIMING...A mix of rain and snow will become all snow overnight.
  Snow, moderate to heavy at times, will continue through at least
  midday Friday then begin to taper off in the afternoon.

* MAIN IMPACT...Snowfall totals of 2 to 4 inches are expected.

* OTHER IMPACTS...Visibilities will be reduced to near a quarter
  mile in the heavier snow. With many trees beginning to leaf
  out, the heavy wet snow could bring down some tree limbs.


A winter weather advisory for snow means snow accumulation will
create hazardous conditions. Use caution when traveling.



U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
Page last modified: May 16, 2007
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE