Air Quality Tuesday July 30 2024 and Forecast for the end of July

There is an Enhanced Risk of severe thunderstorms over parts of theCentral Plains and Middle Mississippi Valley on Tuesday evening andWednesday with a Slight Risk of severe thunderstorms over parts of theOhio Valley on Thursday......There is a Slight Risk of excessive rainfall over parts of the MiddleMississippi Valley and Ohio/Tennessee Valleys on Tuesday evening andWednesday......There is a Slight Risk of excessive rainfall over parts of Northern NewEngland and Southwest on Wednesday and over parts of the Ohio Valley onThursday......There are Excessive Heat Watches over parts of the Pacific Northwestand Excessive Heat Warnings/Advisories over parts of the Central/SouthernPlains, Middle/Lower Mississippi Valley, Ohio/Tennessee Valleys, and theSoutheast.A front with a wave of low pressure over the Northern High Plains willmove slowly eastward to the Ohio Valley/Great Lakes by Thursday. Theassociated boundary will aid in triggering showers and severethunderstorms over parts of the Central Plains, Middle Mississippi Valley,and parts of the Ohio/Tennessee Valleys. Therefore, the SPC has issued anEnhanced Risk (level 3/5) of severe thunderstorms over the Central Plainsand Middle Mississippi Valley through Wednesday morning. The hazardsassociated with these thunderstorms are frequent lightning, severethunderstorm wind gusts, hail, and a few tornadoes. Also, there is athreat of severe thunderstorm wind gust of 65 knots, or greater over partsof the Central Plains, Middle Mississippi Valley and hail two inches, orgreater over parts of the Central Plains. In addition, showers and thunderstorms will create heavy rain over partsof the Middle Mississippi Valley and Ohio/Tennessee Valleys. Therefore,the WPC has issued a Slight Risk (level 2/4) of excessive rainfall overparts of the Middle Mississippi Valley and Ohio/Tennessee Valleys throughWednesday morning. The associated heavy rain will create mainly localizedareas of flash flooding, with urban areas, roads, small streams, andlow-lying areas the most vulnerable.A second area of severe thunderstorms is forecast over parts of theNorthern Plains. Therefore, the SPC has issued a Slight Risk (level 2/5)of severe thunderstorms over parts of the Northern Plains throughWednesday morning. The hazards associated with these thunderstorms arefrequent lightning, severe thunderstorm wind gusts, hail, and a fewtornadoes.