Winds continue to race through KELOLAND Friday afternoon. We’ve had a tremendous amount of wind reports from the Black Hills and surrounding foothills. One of the strongest was a 72 mph gust near Wall. Downtown Rapid City has had many reports, chief among them a 67 mph gust late this morning.
Also of note, a Tornado Watch remains posted for most of NE South Dakota through 8:00 p.m. CDT. We already had one Tornado Warning for Faulk and Potter Counties. That doesn’t seem to have produced a tornado but again, there was a warning. Strong south winds are pumping the storm to the north very fast and it’s an unusual path for severe storms to take. Still, there is plenty of energy to work with.
The heaviest rains have been out west, with fairly widespread 2-3 inches totals in the southern Black Hills. There were many reports of flooding near Keystone and Rapid City. Sioux Falls, Aberdeen and most other eastern towns did pick up some rain, but it was generally less than a tenth of an inch.
This storm will keep moving to the NNE at a very quick speed but the wind will stick around even after skies clear. Skies will clear tonight in the Black Hills. With that, a hard freeze is possible or even likely for many living there. The best chance of overnight rain will be in the northeast corner of SD.
Heading into the weekend, we’re looking for pleasant conditions with the breeze remaining strong. Highs will be below average as a high pressure core moves closer. Late Sunday, the first chunk of another storm system arrives to the Black Hills. There will likely be a few stray showers in the west late in the day. Then the main event comes to KELOLAND. This time, heavy rain seems more likely East River, including in Sioux Falls. Snowy mix is also possible in the far NE corner and in the Black Hills. Sharply cooler air trails the system by the end of the week. Out of this second storm, Wednesday morning could see a hard freeze in many locations.