Dickinson storm history

Rainfall amounts across Dickinson County from June 20-22 ranged from 5 to 10 inches. Widespread overland flooding ensued with additional major to record flooding along the West Fork Little Sioux and Little Sioux Rivers. Lakeshore flooding was also observed across the Iowa Great L…

An extended period of precipitation began with freezing rain quickly producing heavy ice accumulations, ranging up to between a quarter and half inch. The precipitation then changed to sleet and then snow, with sleet and snow accumulations reaching 3 to 6 inches. Many branches, l…

Two episodes of extended blizzard conditions occurred over a slightly less than 24 hour period, with a slight improvement in conditions during the late afternoon to early evening. Gusty northwest winds from 35 to 50 mph were concurrent with light to moderate snowfall, which total…

Sustained northwest winds occasionally reached 30 to 39 mph with a peak gust of 52 mph at Terril.

Intermittent zero visibility was common through the afternoon with gusty winds of 35 to 50 mph and periods of light snowfall. Travel was not recommended during much of the afternoon. A major crash occurred 11 miles west of Milford with one indirect injury, which required extricat…

Wind chills reached as low as -25 degrees at Terril.

Synoptic northwest winds were occasionally sustained from 40 to 44 mph with gusts as high as 61 mph at a personal weather station near Terril.

Snowfall totaled 4.3 inches at Spirit Lake, 4.2 inches 4 miles north of Wahpeton, and 3.4 inches 4 miles northwest of Milford.

A long-duration snowfall totaled 13.4 inches 4 miles northwest of Milford, 12.5 inches at Spirit Lake, 9.0 inches at Lake Park, and 8.2 inches 3 miles south-southeast of Lake Park.

Sustained winds reached 30 to 37 mph at times with a peak gust of 52 mph at a personal weather station 2 miles west of Terril and 49 mph 3 miles south-southeast of Lake Park.

Snowfall totaled 5.1 inches 3 miles south-southeast of Lake Park, 4.9 inches 4 miles northwest of Milford, 3.9 inches at Milford, and 3.3 inches at Spirit Lake.

Dangerous heat index values peaked as high as 107 degrees at Terril and Milford, and 106 degrees at Wahpeton on August 16.

Thunderstorms winds pushed a large tree onto a house, another tree fell across a city street, and a couple of power lines were downed from broken tree limbs.

Thunderstorm wind gusts were measured by a personal weather station.

A tree and several three-inch tree limbs were blown down by thunderstorm wind gusts in Spirit Lake.

Dangerous heat index readings reached an afternoon peak as high as 113 degrees near Terril, 112 degrees 7 miles southwest of Milford, 110 degrees 3 miles south-southeast of Lake Park, and 108 degrees near Wahpeton.

Dangerous heat index readings reached afternoon peaks as high as 106 degrees 4 miles south of Milford, 7 miles southwest of Milford, and near Terril on July 23.

Daily afternoon and evening heat indices ranged from 105 to 113 degrees with a maximum heat index of 113 degrees at a personal weather station near Milford on June 20, and 112 degrees near Terrill, 111 degrees in Spirit Lake, and 106 degrees near Lake Park on June 21.

Pea sized hail accompanied 58 mph measured thunderstorm wind gusts.

Thunderstorm wind gusts removed a large tree limb.

Tree damage from thunderstorm wind gusts occurred in the vicinity of 190th Avenue and 260th Street.

Winds were measured by a personal weather station.

An extended period of gusty winds reached speeds as high as 62 mph at Lake Park.

Several small tree limbs downed by estimated 50 to 60 mph thunderstorm winds.

Sustained winds occasionally reached 25 to 30 mph during the daylight hours. A peak wind gust of 59 mph was recorded at 1335 CST by a private weather station near Lake Park and a 58 mph gust was recorded at 0754 CST by a private weather station 1 mile north-northeast of Wahpeton.

Snowfall totaled 2.0 inches 0.2 miles north of Lake Park.

Sustained winds reached from 40 to 43 mph at times at Terril.

Snowfall only totaled 2.5 inches 4 miles northwest of Milford, 2.3 inches at Spirit Lake, and 2.0 inches 2 miles south-southeast of Lake Park, and northwest winds were sustained from 40 to 43 mph at times at Terril. Wind and snowfall combined to result in widespread white-out con…

Winds were sustained at times from 40 to 44 mph with a peak gust of 55 mph near Lake Park, 54 mph at Terril, and 50 mph at Milford.

The lowest wind chills ranged from 35 to 37 below zero with 37 below zero observed at a Citizen Weather Observer Program site near Terril and a personal weather station near Milford.

Snowfall totaled 3.2 inches 4 miles northwest of Milford, 3.1 inches 0.6 miles east of Spirit Lake, 2.2 inches 3.2 miles south-southeast of Lake Park, and 2.0 inches 0.2 miles north of Lake Park.

The lowest wind chills ranged from 35 to 37 below zero with 37 below zero observed at a Citizen Weather Observer Program site near Terril.

Sustained winds were as high as 32 mph near Terril and 31 mph near Milford.

Winds were sustained from 30 to 35 mph with gusts to 51 mph at Terril and 46 mph near Lake Park.

Sustained winds up to 33 mph with gusts near 45 mph were measured near Terril.

Severe (D2) drought at the start of November improved to moderate (D1) status at mid-month with around 3 inches of rainfall during the first half of the month.

Severe (D2) drought developed with precipitation from 5 to 6 inches below normal since August 1.

A quick spin-up developed along an advancing line of thunderstorms across Big Spirit Lake. The waterspout tracked northeast for around one minute for a little less than a mile before dissipating. The entire life cycle of the tornado was captured on video. No damage occurred from …

Afternoon and early evening heat index values reached as high as 108 degrees near Lake Park and 110 degrees at Milford on August 25, as well as 119 degrees at Terril, 116 degrees at Milford, and 113 degrees at Spirit Lake on August 26.