WINTER STORM WARNING: Potential for heavy snow, rain and flooding

Large amounts of moisture, regardless of whether its rain or snow, is expected to impact the Black Hills Region

Let’s break down the current watches and warnings for our region before we continue with the forecast

THE NATIONAL WEATHER SERVICE IN RAPID CITY HAS ISSUED A WINTER STORM WARNING FOR THE HIGHER ELEVATIONS OF THE BLACK HILLS

THE NATIONAL WEATHER SERVICE IN RAPID CITY HAS ISSUED A WINTER WEATHER ADVISORY FOR THE WYOMING BLACK HILLS

THE NATIONAL WEATHER SERVICE IN RAPID CITY HAS ISSUED A FLOOD (AREAL) WATCH FOR LARGE PORTIONS OF WEST RIVER

  • Talking strictly this morning, spotty showers will be moving across the area, becoming more numerous as the day continues
  • The foothills will experience some switch overs from rain to snow over the next two days, the lower elevations should stick strictly to rain
  • Temperatures will struggle to hit 40, as Easterly winds keep things cool and saturated along the Eastern foothills. Fog will be possible.

  • Starting tonight going into tomorrow morning, heavy bands of precipitation will start moving into the region
  • Northerly winds, up to 20-30 mph with higher gusts are likely for Tuesday
  • As you can see, the rain/snow line will be very distinct, and will move often over the next 48 hours
  • Higher elevations, particularly above 5,000 feet, could see moderate to heavy accumulations of snow up to 6-12″ of snow
  • Accumulations will greatly vary, as up-slope dynamics are often highly localized, and intense. Areas of the hills could see over a foot of snow
  • Colder air could seep into Rapid City and the Eastern foothills, causing brief periods of transition to heavy snow, during these time periods roads could be slick and visibility low. Be prepared for this possibility.
  • Some locations in the foothills and even the great plains could see accumulations on grassy surfaces and overpasses

  • Here’s what one model suggests as far as accumulations go, this particular one keeps Rapid City out of the snow entirely.
  • I am not convinced of this outcome and believe we will see some accumulations in the Rapid City area before all is said and done.
  • Areas of Wyoming will see light accumulations at best, save for the Sundance area and the Wyoming Black Hills

  • REGARDLESS if you see rain or snow, a large amount of moisture is expected to wash over our region, increasing chances for areal flooding
  • Make sure drains and gutters are clear, and keep an eye on rivers, lakes and streams over the next 48 hours
  • Up-slope enhancement, as you can see, looks to concentrate most precipitation on the Eastern foothills stretching down towards Pine Ridge

A slight warm up, along with drier weather looks likely after Wednesday with chances for spotty showers. By the weekend we could have temperatures back in the 60s, with sunshine returning. Keep up to date with temperatures in your area with our NC1 weather app, so you can keep track of how close your location is to a possible transition.

Another classic Spring storm is here, and no less in late May! Remember to drive the conditions, not the season. Mother nature does not have a calendar! Stick with Newscenter1 for the latest updates!

Current Conditions

 

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