7PM Day 1 Convective Outlook for Wednesday, July 16. THERE IS AN ENHANCED RISK OF SEVERE THUNDERSTORMS OVER PORTIONS OF CENTRAL NEBRASKA
SUMMARY
Scattered severe gusts (some 75+ mph) and large hail are probable across parts of central Nebraska this evening. Isolated severe gusts are also possible from the Upper Midwest to Utah and Wyoming through mid-evening.
SD/NE
An organized linear MCS has become established from eastern SD into central NE. These storms have product several reports of locally damaging winds and some large hail. This QLCS will progress east-southeastward through the evening into western IA and southeast NE, with a continued severe threat. Reference MCD #1679 and WW #514 for further details.
Northern WY/Western Upper MI
A line of intense thunderstorms is tracking eastward along and south of the WI/Upper MI state line. These storms have produced sporadic damaging wind gusts over the last few hours, and are probably past-peak. Nevertheless, a few severe storms will remain possible for another 2-3 hours. Reference WW #513 for further details.
WY
Scattered high-based thunderstorms continue to develop and spread across much of western and central WY. The strongest cells in this area will maintain some risk of damaging wind gusts for a few more hours until diurnal cooling diminishes the threat. Reference WW #515 for further details.
Southeast AZ
Scattered thunderstorms continue to develop in a warm/moist environment over southeast AZ. This activity will slowly build westward for the next several hours, with a risk of gusty/damaging winds. Reference MCD #1680 for further details.