Weather Tuesday June 4 2024 Fair in New York City today but rainy later wednesday and thursday but delays Atlanta, Chicago and MSP

On Tuesday, a reinforcing cold front will move out of the Northern Rockiesand merge with the front over the Mississippi Valley, producing showersand severe thunderstorms over parts of the Upper/Middle Mississippi Valleyand Central Plains. Therefore, the SPC has issued a Slight Risk (level2/5) of severe thunderstorms over parts of the Upper/Middle MississippiValley and Central Plains from Tuesday into Wednesday morning.  Thehazards associated with these thunderstorms are frequent lightning, severethunderstorm wind gusts, hail, and a few tornadoes.Moreover, the showers and thunderstorms will cause heavy rain over theUpper/Middle/Lower Mississippi Valley and Central/Southern Plains.Therefore, the WPC has issued a Slight Risk (level 2/4) of excessiverainfall over parts of the Upper/Middle/Lower Mississippi Valley andCentral/Southern Plains from Tuesday through Wednesday morning. Theassociated heavy rain will create mainly localized areas of flashflooding, with urban areas, roads, small streams, and low-lying areas themost vulnerable.On Wednesday, the threat of excessive rainfall will decrease slightly overthe Great Lakes, Ohio/Tennessee Valleys, Lower Mississippi Valley,Southern Plains, Central/Southern Appalachians, Mid-Atlantic andSoutheast. Therefore, the WPC has issued a Marginal Risk (level 1/4) ofexcessive rainfall over the region on Wednesday.  The associated heavyrain will create localized areas of flash flooding, affecting areas thatexperience rapid runoff with heavy rain. Also, on Wednesday, the threat ofsevere thunderstorms will end. However, showers and thunderstorms willdevelop over the eastern third of the lower forty-eight states. Meanwhile, on Monday, rain and snow melt will produce heavy runoff overparts of the Northwest and Northern Intermountain Region. Therefore, theWPC has issued a Slight Risk (level 2/4) of excessive rainfall over partsof the Northern Intermountain Region through Tuesday morning. Theassociated heavy rain will create mainly localized areas of flashflooding, with urban areas, roads, small streams, and low-lying areas themost vulnerable.In addition, early Tuesday, a front will move onshore over the PacificNorthwest and inland to the Northern Intermountain Region and weaken byWednesday. The system will produce rain over parts of the PacificNorthwest and Northern Intermountain Region.Furthermore, a developing upper-level ridging will build over Californiaand continue over southern/western Texas, aiding in spawning ExcessiveHeat Warnings, Excessive Heat Watches, and Heat Advisories overCentral/Southern California and western/southern Texas and CentralCalifornia. Moreover, the ridging will create the first round of dangerous heat thisseason. The hottest temperatures so far for the West will build inCalifornia and the Desert Southwest on Tuesday. On Wednesday, the heatwill create record-breaking daily high temperatures for portions ofCalifornia�s Central Valley. Be sure to break your heat exposure byavoiding outdoor time at the hottest times of the day. Check local mediaand government websites for cooling center locations and hours.