Model tornado parameters Friday night.

The next storm system will be a slow mover. A cold front will retreat Friday as a warm front into C OK stretching roughly along I-44 from SW to NE OK. Severe storms are expected to develop along and near this feature during the evening hours. As with most of our storms this year, the main threat will be hail and wind. However, there may be a tornado threat if certain conditions materialize such as an uncapped warm sector for overnight activity. I will have more details about that on Thursday as things are still very muddled. Also, flash flooding may end up being the big story as models indicate as much as 8″ of rain may fall in a few areas through Sunday morning. One of these harder hit regions is right in the OKC metro area as well as parts of E OK.

As far as outdoor activities this weekend are concerned, expect a washout Saturday with improving conditions on Sunday. It will be possible to see a few snowflakes mixed in with the rain in NW OK Sunday morning as the upper storm system moves across the state. Expect cold north winds on Saturday with temps in the 40s W, 50s C, and 60s E during the day. Sunday winds will relax a bit and clouds will be slow to clear. Lows in 30s W to 40s E. Highs will be in the 40s NE, 50s C, and 60s SW.
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