Power Outage in Clinton, IA

A tornado touched down 3 miles north of Atalissa, Iowa in Cedar County, snapping power poles and large trees along its path. It caused significant damage to two homes southwest of Bennett, Iowa, and flipped over a semi along interstate 80. It also damaged several concrete block silos south of Bennett. The tornado continued to track to the northeast through a rural area, causing sporadic tree damage. The tornado entered extreme northwest Scott County about a third of a mile south of 220th St., then travelled around one mile before entering Clinton County about a half mile west of the intersection of 280th St. and 110th Ave. The tornado then dissipated about 2 miles south of Wheatland. The peak winds were estimated at 120 mph. The tornado was rated EF-2 in Cedar County, and EF-0 in Scott and Clinton Counties.

Widespread straight-line winds that produced extensive damage were reported throughout Clinton County, associated with a derecho. These winds lasted around an hour in total at any one location, even though the initial line of storms moved out quickly. Damaging straight-line winds continued and were associated with the rear inflow jet. Maximum wind speeds were estimated to be 80 to 100 MPH for much of the county with winds over 100 MPH in the city of Clinton. These estimates were determined based off damage reports and photos submitted through social media. The Clinton Airport AWOS reported a peak gust of 74 MPH with winds over 60 MPH for 45 minutes. In addition, a radio transmission tower collapsed at KMCN in Clinton with significant damage to the roof. The wind speed estimate with transmission tower collapse was 130 MPH. The duration of strong winds caused extensive damage to most trees, powerlines, crops, and structures in their path. The widespread damage also resulted in long duration power outages.

Widespread straight-line winds that produced extensive damage were reported throughout Clinton County, associated with a derecho. These winds lasted around an hour in total at any one location, even though the initial line of storms moved out quickly. Damaging straight-line winds continued and were associated with the rear inflow jet. Maximum wind speeds were estimated to be 80 to 100 MPH for much of the county with winds over 100 MPH in the city of Clinton. These estimates were determined based off damage reports and photos submitted through social media. The Clinton Airport AWOS reported a peak gust of 74 MPH with winds over 60 MPH for 45 minutes. In addition, a radio transmission tower collapsed at KMCN in Clinton with significant damage to the roof. The wind speed estimate with transmission tower collapse was 130 MPH. The duration of strong winds caused extensive damage to most trees, powerlines, crops, and structures in their path. The widespread damage also resulted in long duration power outages.

Power lines and trees were damaged by non-thunderstorm winds.

A NWS COOP observer reported 2.9 inches of snow in Camanche, Iowa. Significant blowing and drifting snow was widespread over the area with white out conditions at times lingering through the day of February 12. Power outages from down power lines, power poles, and tree branch damage were widespread.

This is a continuation of the tornado that touched down in Cedar County. The tornado continued for a path length of over 11 miles in Clinton County producing damage to trees, outbuildings, and power lines.

This is a continuation of the tornado that touched down in Cedar County. The tornado continued for a path length of over 11 miles in Clinton County producing damage to trees, outbuildings, and power lines.

This is a continuation of the tornado that started in Walcott in Scott County, crossed the Wapsipinicon River into Clinton County, and ended near Goose Lake. Damage was primarily to farm outbuildings and trees. Some power poles were snapped. Max winds were estimated at 115 MPH and the tornado was rated EF2.

The emergency manager reported numerous large trees down, some on homes, and power lines also down. The damage occurred mainly in the central portion of the city of Clinton. The winds were estimated at 70 to 80 mph.

Wind gusts estimated to be 60 mph blew down some power lines in Clinton, IA around 625 am CDT July 11.

Wind gusts estimated to be 70 mph blew down a large tree in DeWitt, IA around 615 am CDT July 11. Power and phone lines were severed.

Wind gusts estimated to be 65 mph blew some tree limbs down onto power lines in Clinton, IA around 510 am June 23.

Wind gusts estimated to be 65 mph blew some tree limbs onto power lines in De Witt, IA around 450 am June 23.

Wind gusts estimated to be 70 mph blew down power lines in Clinton, IA around 540 pm June 27.

Wind gusts estimated to be 70 mph blew down some trees and power lines along the 3500 block of Main Avenue (Highway 136) on the north side of Clinton, IA around 540 pm June 27.

Winds estimated to be 65 mph caused damage to out buildings, road signs, power poles and trees across Clinton County. At 12:10 pm, a road sign blew down just south of De Witt blocking a road near the Highway 61 and Highway 30 interchange. At 12:30 pm, the roof of a shed at 1029 185th Ave. in Lost Nation was blown into a nearby road. At 1:26 pm, the RWIS automated site near the Highway 61 and Highway 30 interchange (De Witt) measured a wind gust of 58 mph. At 1:30 pm, a large tree branch fell onto some power lines in Charlotte. At 1:45 pm, a power pole was blown down at 903 11th Ave. in De Witt.

Winds estimated to be 60 mph blew down some power lines on the northwest side of De Witt.

Trees and power lines down at 7th Avenue and North 4th Streets; also on 9th Avenue

Tree limbs down. Power knocked out to about 2,000 homes and businesses. Peak wind gust of 59 mph measured in Clinton.

Large tree down in Charlotte. Several trees and power lines down in Clinton. Reported by law enforcement.

A powerful storm system moved across eastern Iowa into southwest Wisconsin, sweeping a strong cold front through the area during the afternoon hours of Thursday, April 20th. A line of thunderstorms developed quickly along the front, with some of them becoming severe and producing hail in the counties along Mississippi River in eastern Iowa.

A cold front moving into eastern Iowa and northwest Illinois managed to develop isolated severe thunderstorms during the late afternoon and early evening of July 7, 2012. The airmass ahead of the front was very unstable but the shear was weak. The thunderstorms produced 60 mph winds at Bleidorn, Iowa in Clinton county. Another isolated severe thunderstorm near Sterling, Illinois in Whiteside county produced 60 mph winds. The public reported several large diameter tree limbs down along with power outages.

A large low pressure system moved into the region and continued to deepen as it moved across Minnesota, becoming the most intense storm on record in the|Midwest on October 26, 2010. A squall line formed in the highly sheared warm sector ahead of a strong cold front associated with the intense system. This line of storms swept rapidly eastward across extreme eastern Iowa into Illinois during the early morning hours. There were some reports of trees and power lines down from the thunderstorms, with a 65 mph wind gust measured in Clinton, Iowa at 435 am cst.

An intense storm system with an associated tropopause fold produced sustained gradient winds of 30 to 35 knots (35 to 40 mph) with gusts to 48 knots (55 mph) across Eastern Iowa, Northern Illinois, and Northeast Missouri. Measured gusts of 50 knots (58 mph) and 54 knots (62 mph) were reported at the Clinton, Iowa, and Peru, Illinois airports. Iowa DOT RWIS sites at De Witt, Iowa, and the junction of Interstate 80/280 reported sustained winds of 36 knots (41 mph) in a few 5 minute intervals during the daylight hours. A few trees were downed with known power outages affecting 15,000 people.

Another early morning MCS moved across Eastern Iowa and Northern Illinois producing heavy rain and damaging winds. Rainfall rates of 1 to 2 inches an hour were common with the storms. Heavy rain along the North Fork of the Maquoketa River in Iowa pushed the river to bankfull. The Clinton Airport AWOS measured 48 knots (55 mph) as the storms moved through downing some trees and power lines in Clinton.

An intense spring storm system brought sustained winds of 27-33 knots (30-40) mph with gusts over 43 knots (50 mph) to Eastern Iowa, Northern Illinois, and far Northeast Missouri. At Illinois Valley Regional Airport (KVYS) in Peru, Illinois, a wind gust of 54 knots (62 mph) was recorded. In Whiteside County Illinois, numerous power lines, limbs and some trees were downed. At one point over 5,000 people in Northwest Illinois were without power.

Event Summary for 7/24/01:An east-west frontal boundary was positioned near the Highway 20 corridor by late afternoon. This boundary was the dividing line between slightly cooler and drier air to the north ( temperatures in the 80s and dewpoints in the middle 60s), with hot and humid conditions to the south (temperatures in the lower 90s and dewpoints in the middle to upper 70s). This contrast in airmasses fueled a line of severe thunderstorms during the late afternoon. This line developed a bowing segment which moved across portions of Jones, Jackson and Clinton counties, producing wind damage. Winds were estimated between 60 mph and 70 mph, downing trees and power lines.

Event summary for 4/7/01: (For additional details, see individual entries for the date)A very strong low pressure center tracked N/NE from Nebraska through Minnesota. The tight pressure gradient produced by the surface low, along with daytime heating, created very strong winds across eastern Iowa and northwest Illinois through much of the day, beginning around 8 am and ending around sunset. A southwest wind was sustained at 30 to 35 mph, with gusts from 50 to 55 mph. There were a few isolated wind gusts of 58 to 60 mph across eastern Iowa (see individual reports above), but most of the area remained below High Wind Warning criteria, which is sustained speeds of at least 40 mph (34 knots) for an extended period of time, or a gust to at least 58 mph (50 knots). Wind damage and power outages were widespread throughout the area, as high winds blew trees down on power lines, or snapped the power poles themselves. According to newspaper accounts, an estimated 20-thousand people lost power across eastern Iowa and northwest Illinois. Numerous trees and power lines were downed, and shingles and siding were blown off buildings and homes. The high winds blew a power line down at a rural Johnson county home, which led to a fire that destroyed the structure. A downed power line also caused a fire that damaged a funeral home in Buchanan county. Law enforcement in eastern Iowa reported two accidents resulting from the high winds. There were no injuries.