Delaware storm history

A trained spotter in Delaware County reported 3.5 inches of snow at 9 AM CST 2 miles southwest of Colesburg. Snow was continuing to fall. The Delaware County Emergency Manager relayed that there were over 60 traffic accidents in the area. One of these accidents resulted in a fata…

Record flooding on the Maquoketa River resulted in the failure of the earthen berm on the south side of the Lake Delhi/Hartwick Lake dam during the late morning and afternoon of July 24. The dam failure resulted in flash flooding of residences along the Maquoketa River immediatel…

After about 10 inches of rain fell in the upper Maquoketa River basin, the river surged to record stage levels. The initial impact off the surging river levels was seen in Manchester, where portions of the business district as well as numerous homes were affected by flood waters.…

Also reported by law enforcement

The COOP Observer in Manchester reported 12.6 inches of snow. A trained spotter snowfall reported 12.5 inches 3 miles north of Hopkinton.

Broadcast media relayed photos of tree damage around Lake Delhi.

Broadcast Media relayed a report of a large tree uprooted in Manchester, which fell on a fence. The time and location of the event were estimated using radar.

The Emergency Manager reported that trees and power lines are down.

Photos and video relayed on X of a large tree uprooted at a farmstead along with a blown down shed. The time of the event was estimated using radar.

A trained spotter reported that hail ranged in size from half an inch to a quarter of an inch.

Large lighting pole was downed at baseball field at fairgrounds.

Large tree in roadway at 245th St and 260th Ave east of Delhi. Done by storm outflow winds well ahead of the storms themselves. Time estimated by outflow signature on radar.

Large branches down in town. Time estimated using radar.

Measured by wind equipement.

Trained spotters reported 5 to 6 inches of snow, with widespread snow covered roads.

Trained spotters and DOT reported widespread slick conditions with a 0.2 to 0.4 of an inch of ice accumulation on the ground and elevated surfaces.

The Emergency Manager reported a 10 inch tree limbs down.

A trained spotter reported that a pine tree was snapped by thunderstorm winds at Backbone State Park.

Spotter estimated wind gust.

A public report of an estimated 60 MPH thunderstorm wind gust. There was a fence blown down with tree limbs knocked down.

A snowfall report of 1.8 inches by the COOP Observer in Manchester.

Numerous reports of 4 to 8 inches of snow were received, with widespread significant drifting snow continuing into the evening hours.

Snowfall reports ranged from 9.3 inches from a COOP Observer in Manchester to a public report of 10.5 inches 2 miles south of Buck Creek.

A trained spotter reported a 70 mph wind gust with the thunderstorm.

Emergency manager reported a 61 mph wind gust.

House damage and roof blown off of a shed in Ryan.

Trained spotters reported ice accumulation of 0.25 to 0.50 of an inch, mainly on elevated surfaces.

Snow fall reports ranged from 2.5 to 3.5 inches across the county. Peak wind gusts ranged from 40 to 50 MPH with a peak wind gust at the Manchester Airport of 49 MPH. This led to widespread blowing and drifting snow across the area resulting in blizzard conditions across the area…

Snowfall reports ranged from 2.5 inches by a CoCoRAHS observer 1 mile northeast of Dundee to 3.2 inches 1 mile south southeast of Manchester by a COOP observer. Winds increased with gusts up to 35 MPH leading to reduced visibilities from blowing and drifting snow. Temperatures al…

The Emergency Manager reported tree branches down and tree damage around town.

A public report that several small tree limbs were down. They estimated thunderstorm winds around 60 MPH.

The Emergency Manager reported that a livestock building was flipped over. The time of the event was estimated based on radar.

Emergency Manager reported trees down over roads in the county.

The Emergency Manager relayed a report of a tree down in Greeley.

The Emergency Manager reported downed power lines.

The Emergency Manager relayed a report that lightning struck a house and put a hole in the roof. The exact time of the event is unknown but used the time that it was reported to the local EMA.

A trained spotter sent pictures via social media that shows a few branches near 6 inches in diameter down along with the trunk of a snapped tree. The time of the event was estimated using radar.

A trained spotter reported a tree down on powerlines.

Winds to 40 mph also reported.