Issue Date: Thursday, July 1, 2021
\nIssue Time: 9:35 AM MDT<\/p>\n
The last day of June started off uneventfully, but ample moisture across the state allowed for isolated<\/span> and scattered<\/span> thunderstorm development in the western half of the state in the late afternoon, including the Northwest and Southwest Slopes, and Northern and Central Mountains. Pockets of isolated<\/span> thunderstorm accumulation of 0.25 inches or more can be seen scattered<\/span> across the State Precipitation Map below. CoCoRaHS<\/span> observers saw even higher, localized rainfall totals with 0.98 inches reported in Mancos and 0.85 inches in Del Norte. <\/p>\n By evening, a slow-moving, convective thunderstorm formed in rural Weld County, north of Greeley. A series of flash flood<\/span> warnings and updates were issued for the heavy rainfall beginning at 8:20 pm and extending well into overnight. In total, 3.46 inches fell according to two CoCoRaHS<\/span> observers in Nunn and Purcell in Weld County, and an additional 2.24 from a second observer in Nunn. One remarked “In 70 years I’ve never seen a rain like this”<\/em>. <\/p>\n A radar loop of the slow-moving, convective cell was shared by State Climatologist Russ Schumacher this morning, highlighting how stationary the storm was: <\/p>\n Pretty remarkable little convective system over Weld County last night… #cowx<\/a> 1\/2 pic.twitter.com\/uoH1v2bUjs<\/a><\/p>\n — Russ Schumacher (@russ_schumacher) July 1, 2021<\/a><\/p><\/blockquote>\n \n