North Liberty, Iowa Natural Disasters | Johnson County Hazard Db

HazardDB

Hazard Score

42 Catastrophes Recorded

Historical_Hail

Historical_Tornadoes

Historical_Floods

Historical_Wind

North-Liberty, Iowa

8 Land Tracts in Johnson County , Lower Iowa Watershed

North-Liberty, Iowa, with a population of 152,809, faces a relatively moderate overall hazard risk level due to its location in Johnson County within the state of Iowa. The city is situated in the Upper Mississippi-Iowa-Skunk-Wapsipinicon hydrologic subregion, which can experience moderate to high risks of flooding and water-related hazards. Additionally, North-Liberty is located in close proximity to the Lower Iowa hydrologic unit, which further increases the potential for flooding events.

The climate in North-Liberty is characterized by a hardiness rating of 5 and relatively high levels of precipitation and humidity. These factors, combined with the city's proximity to the Iowa River and other water bodies, increase the risk of flooding during heavy rainfall events. While the area may experience relatively low risks of seismic activity or volcanic eruptions, the presence of fault lines and geological features in the region could contribute to localized hazards such as landslides or ground instability during extreme weather events.

Overall, North-Liberty's hazard risk assessment is influenced by a combination of climate factors, hydrological features, and geological characteristics. While the city may not face imminent threats from hurricanes or tsunamis, the potential for flooding and other water-related hazards remains a significant concern. By understanding the specific risk factors associated with its location within Johnson County and the broader hydrologic subregion, North-Liberty can better prepare for and mitigate the impact of natural disasters in the future.

Wildfire Risk: Very Low

Tornado Risk: Low

Hurricane Risk: Very Low

Hail Risk: Low

Flood Risk: High

Tsunami Risk: Very Low

Earthquake Risk: Very Low

Wind Risk: Low

HAZARDS

1

Power Transmission Lines

0

Coastlines

1

Water Bodies

0

Fault Lines

EMERGENCY SERVICES

2

Hazard Shelters

1

Fire Stations

0

Hospitals

1

Police Stations

COMMUNITY PROFILE

Johnson County, Iowa faces a relatively moderate overall risk score of 93.19, with specific risks such as heavy wind events (93.84) and tornadoes (95.23) presenting very high risk ratings. The county has seen historical events such as hail (98.35) and flooding (97.96) causing significant damage. With a population of 152,809, the area's vulnerability to climate hazards is evident in the high risk values associated with wind storms (78,330.84), hail events (6,200,776.28), and flooding (17,679,705.74).

Geologically, Johnson County is located inland and lacks direct exposure to coastal or volcanic risks. However, the presence of water bodies like the Iowa River and geological features such as fault lines and mountain peaks can contribute to the county's susceptibility to flooding and landslides. The county's relatively low to moderate seismic risk (71.68) highlights the potential for earthquake events to impact the area. The surrounding topography and proximity to the Mississippi River can also ... Read More

CLIMATE OVERVIEW

Average Temperature

10 °F Cold

Average Precipitation

909 mm Moderate

Average Humidity

84% Moderately High

Plant Hardiness

5/10 Moderate

NATURAL CATASTROPHE TIMELINE

Hailstorm

2020-07-11

Hailstorm

2020-07-11

Hailstorm

2020-07-11

Hailstorm

2020-07-11

Flooding

Heavy Rain

2019-04-30

Flooding

Snowmelt, Heavy Rain, Ice Jams

2019-03-13

Hailstorm

2018-06-09

Hailstorm

2017-02-28

Hailstorm

2016-06-22

Flooding

2010-04-05

Hailstorm

2010-04-05

Flooding

Heavy Rain Snowmelt Dam B

2010-03-10

Heavy Rain

Hailstorm

2002-10-01

Flooding

1974-06-22

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