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638 FXUS65 KBOU 292056 AFDBOU Area Forecast Discussion National Weather Service Denver/Boulder CO 256 PM MDT Wed Jul 29 2026 .KEY MESSAGES... - Showers and thunderstorms likely across the high terrain in the late morning, shifting to the plains by the afternoon. - Strong storms could produce localized flash flooding, particularly for the burn scar and areas along and east of the southern I-25 Corridor. - Drying out again later in the week. Heat returns by the weekend. && .DISCUSSION /Through Wednesday/... Issued at 253 PM MDT Wed Jul 29 2026 It is another afternoon of showers and thunderstorms across Colorado as monsoonal moisture continues to raise precipitable water (PW) for the region to values (1.0"-1.6") that greatly exceed the 90th percentile of climatology. Numerous thunderstorms have already developed over the Front Range and the urban corridor, with radar- estimated totals with the strongest storms ranging from 1.00" to 2.0" in one hour. Weak mean cloud layer winds (