HASTINGS, Neb. (KSNB) - A stalled front in Kansas will advance north overnight, putting us on a fasttrack to summer Wednesday and Thursday. As the warm air moves north, clouds will be on the increase after midnight and an isolated, non-severe thunderstorm can’t be completely ruled out while you sleep, but most areas will stay dry. Winds will increase out of the south on Wednesday behind the warm front, ushering in moisture laden air that will make dewpoint temperatures climb into the 60s and 70s giving us that sticky feel.
Temperatures are forecast to climb into the lower 90s, right in the ballpark to perhaps break a few records.
The warmer, humid air lends itself to an unstable atmosphere, so there will be a threat for isolated to widely scattered thunderstorms to develop in the afternoon/early evening timeframe. The severe threat is marginal but a couple of storms could turn severe with a potential for large hail and damaging winds.
Thursday will again be hot and sultry, but a strong disturbance emerging from the High Plains induces a surface low and cold front to race across the state which will make the severe weather threat more widespread. The Tri-Cities will be split between an enhanced and a slight risk for severe weather, with the primary elements again being large hail and damaging winds, as storms are expected to line up in a complex as they track east out of southwest areas through the Tri-Cities into northeast Nebraska. Wind shear doesn’t look overly impressive, so the tornado threat, while not zero, appears minimal.
In the wake of the front, cooler, less humid air will bring mild conditions to the region through the weekend into early next week. A few disturbances keeps a slight chance for thunderstorms in the forecast through Tuesday.
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