Weather Saturday June 8 2024... New York City Fair and the Northeast T-storms Chicago and south Florida, dry in Atlanta and Texas also dry west coast

Threats for severe weather and flash flooding for portions of the Central Plains into the middle/lower Missouri River Valley through Saturday... ...Excessive heat over the West and Southwest through Saturday but some relief coming on Sunday... Most of the active weather across the lower 48 will focus across the central portion of the nation through the weekend in the form of severe thunderstorms and potential for flash flooding. Anomalous moisture will pool in the vicinity of a pair of frontal boundaries located over the Central Plains this evening. Severe thunderstorms are expected to increase in coverage through this evening near a stationary front currently in place across Nebraska, with threats for large hail and damaging straight line winds in addition to tornadoes. An organized thunderstorm complex is likely to form tonight and translate toward the southeast toward the lower Missouri Valley, carrying a risk for flash flooding with high rainfall rates and possibly 4-5 inches of rain by Saturday morning. Severe weather (mainly hail and wind) and flash flood potential will focus a little farther south on Saturday as a cold front moves through the central Plains. The threat region will extend from the central High Plains, through southern KS into the middle Mississippi and lower Ohio Valleys. Spotty rainfall totals in excess of 3 inches will be possible in addition to the severe thunderstorms. Out West, an upper level ridge in place over the western U.S. will maintain the hot weather on Saturday that has been impacting the region over the past couple of days. However, the upper level ridge will be displaced and weakened with the approach of an upstream trough axis and associated surface cold front. The cold front is forecast to arrive early on Sunday and advance south and east during the day which will lower the magnitude of hot weather. Temperatures however, are still likely to remain up to roughly 10 degrees above average on Sunday. Across the Great Lakes region into the Northeast, temperatures will run 5 to 15 degrees below average beneath the influence of upper level troughing this weekend. The region will remain unsettled however, with multiple rounds of showers and thunderstorms beneath the upper trough and with a surface low/cold front tracking eastward through Sunday. East of the Appalachians, from the Mid-Atlantic to Southeast, high pressure will keep temperatures near to slightly above average for the weekend but with little to no chances for precipitation. The one exception will be across the Florida Peninsula where high temperatures in the middle to upper 90s may challenge a few daily maximum temperature records on Saturday and Sunday. In addition, diurnally driven thunderstorms are expected each day but with a focus across southern Florida where access to better moisture will reside.