Valid 080100Z – 081200Z
…THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS PARTS OF
THE CENTRAL PLAINS…
…SUMMARY…
Scattered storms are expected tonight across parts of the Central
Plains, with hail or wind possible. Otherwise, a decreasing severe
threat is expected across the Great Lakes, Mid Atlantic, and Lower
Mississippi Valley where isolated strong wind gusts remain possible.
…Central Plains…
A moist and unstable air mass remains over much of the central
states, with sporadic storms across many states. One possible
corridor of focused severe threat is expected to develop along and
north of a stationary front extending from eastern CO across KS and
into southwest MO. Southwesterly 850 mb winds are expected to
increase tonight, which will increase warm advection near this
boundary. The steep lapse rate environment beneath modest northwest
flow aloft should support scattered storms in a northwest-southeast
zone along the front, with hail and locally damaging wind gusts
possible.
…WI..
Cooler and drier air will continue to surge across WI behind a cold
front, and will continue to support scattered thunderstorms. The
instability axis currently extends northeastward out of IA and into
WI, and this is where isolated marginally severe storms are
possible. A weakening trend is expected with the loss of heating,
thus the threat may only exist for a couple hours.
..Jewell.. 08/08/2019
$$