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 theCentral Plains into the middle/lower Missouri River Valley throughSaturday......Excessive heat over the West and Southwest through Saturday but somerelief coming on Sunday...Most of the active weather across the lower 48 will focus across thecentral portion of the nation through the weekend in the form of severethunderstorms and potential for flash flooding. Anomalous moisture willpool in the vicinity of a pair of frontal boundaries located over theCentral Plains this evening. Severe thunderstorms are expected to increasein coverage through this evening near a stationary front currently inplace across Nebraska, with threats for large hail and damaging straightline winds in addition to tornadoes. An organized thunderstorm complex islikely to form tonight and translate toward the southeast toward the lowerMissouri Valley, carrying a risk for flash flooding with high rainfallrates and possibly 4-5 inches of rain by Saturday morning.Severe weather (mainly hail and wind) and flash flood potential will focusa little farther south on Saturday as a cold front moves through thecentral Plains. The threat region will extend from the central HighPlains, through southern KS into the middle Mississippi and lower OhioValleys. Spotty rainfall totals in excess of 3 inches will be possible inaddition to the severe thunderstorms.Out West, an upper level ridge in place over the western U.S. willmaintain the hot weather on Saturday that has been impacting the regionover the past couple of days. However, the upper level ridge will bedisplaced and weakened with the approach of an upstream trough axis andassociated surface cold front. The cold front is forecast to arrive earlyon Sunday and advance south and east during the day which will lower themagnitude of hot weather. Temperatures however, are still likely to remainup to roughly 10 degrees above average on Sunday.Across the Great Lakes region into the Northeast, temperatures will run 5to 15 degrees below average beneath the influence of upper level troughingthis weekend. The region will remain unsettled however, with multiplerounds of showers and thunderstorms beneath the upper trough and with asurface low/cold front tracking eastward through Sunday. East of theAppalachians, from the Mid-Atlantic to Southeast, high pressure will keeptemperatures near to slightly above average for the weekend but withlittle to no chances for precipitation. The one exception will be acrossthe Florida Peninsula where high temperatures in the middle to upper 90smay challenge a few daily maximum temperature records on Saturday andSunday. In addition, diurnally driven thunderstorms are expected each daybut with a focus across southern Florida where access to better moisturewill reside.