Clark County, MO Environment & Hazard Risk

• Heat waveRelatively Moderate$1.6M/yr expected annual loss, about 9.3 events a year
• LandslideRelatively Low$3,270/yr expected annual loss, about once every 5 years
• DroughtRelatively Low$287K/yr expected annual loss, about 7.8 events a year
• Strong windRelatively Moderate$553K/yr expected annual loss, about 4.3 events a year
• HailRelatively Low$270K/yr expected annual loss, about 3.5 events a year
• WildfireVery Low$35.2K/yr expected annual loss, about once every 1,272 years
• LightningRelatively Low$168K/yr expected annual loss, about 46 events a year
• EarthquakeVery Low$84.1K/yr expected annual loss, about once every 696 years
• TornadoVery Low$331K/yr expected annual loss, about once every 3 years
• Cold waveVery Low$233K/yr expected annual loss, about 4.4 events a year
• Ice stormVery Low$11.3K/yr expected annual loss, about once every 2 years
• Winter weatherVery Low$13.4K/yr expected annual loss, about 11 events a year
• HurricaneVery Low$2,956/yr expected annual loss, about once every 100 years

Bars show the national percentile score (0 to 100) for each hazard. Dollar figures are expected annual losses to buildings, people and crops. Not rated here: avalanche, coastal flooding, riverine flooding, tsunami, volcanic activity.

Check the flood zone for an address

Homes with flood insurance

28 of 4,775 (0.6%)

Homes in high-risk flood zones

184

Insured in high-risk zones

10 (5%)

Flood claims since 1978

106

Claims paid since 1978

$7.6M

• Thunderstorm Wind114
• Hail96
• Winter Weather50
• Flash Flood47
• Winter Storm41
• Flood40 · 1 death
• Drought13
• Tornado12
• Ice Storm10
• Heavy Snow8

• Flood06/08/2014

  Revere, Clark County

  1 death

  What happened

  A 68 year old male drowned in Dumas Creek near Revere, Missouri when the pick-up truck he was driving was swept into the creek. The incident occurred at a low-water crossing when the swift current pushed his truck into the creek. The man was able to exit his truck about 50 to 75 yards from the road but couldn't get himself to safety. His body was found about a half mile downstream a couple of days later. The incident occurred sometime during the evening but the exact time is unknown. A large area of rain and a few thunderstorms occurred from about noon to 4 pm with rain amounts of 2 inches reported.

• Drought07/01/2005

  Clark

  $4.8M damage

  What happened

  The drought that began back in June 2005 continued through July and into August 2005 and spread into Eastern Iowa and Northeast Missouri. The drought became severe to extreme across Northwest and West Central Illinois while it was only severe across Eastern Iowa and Northeast Missouri. The drought combined with high heat during the second half of the month decimated the corn crop. At one point during the month of July, the dryness for the calendar year across parts of the area equalled or exceeded the dry conditions during the drought of 1988. By late June the governor of Illinois had activated the Drought Response Task Force in response to severe drought conditions. By late July much of the state was declared an agricultural disaster area by the USDA.Crop loss estimates varied across the entire area. Across Illinois, the worst losses were along the Illinois River Valley with an estimated 40% yield reduction that decreased to around 25-30% along the Mississippi River Valley. In Iowa, loses rapidly decreased the further west one went from the Mississippi River Valley and were near or just slightly below normal upon reaching an Independence to Oskaloosa Iowa line.

• Thunderstorm Wind60 kt wind06/25/2003

  Alexandria, Clark County

  $4.8M damage

  What happened

  A line of strong storms moved across Clark County in the late afternoon damaging 20,000 acres of crops (17,000 corn and 3,000 wheat) near the Alexandria area.

• Drought08/01/2005

  Clark

  $2.7M damage

  What happened

  The 2005 drought that started back in June continued through the month of August 2005 and into September 2005. Severe to extreme drought continued across the northern half of Illinois, eastern third of Iowa, and northeast Missouri. Although rainfall was more plentiful during the month, it continued to remain widely scattered. What rainfall did occur helped keep soybean losses to a minimum and preserved what was left of the corn crop. The severe dryness of the drought continued to place it equal to or exceeding the drought of 1988. By the end of August the governor of Iowa had requested areas south and east of a line from Dubuque, to Independence, to Ottumwa (save Buchanan County) be declared an agricultural disaster area.Soybean crop losses generally were estimated at a 10-15% reduction in yield across Illinois, eastern Iowa, and northeast Missouri. There were pockets across eastern Iowa and northeast Missouri where an estimated 20-30% reduction in yield for soybeans was expected.

• Frost/Freeze05/03/2005

  Clark

  $2.2M damage

  What happened

  Record breaking cold settled over the Midwest during the early morning hours of 3 May 2005. The cold was of such intensity that all time record minimums for the month of May were tied or shattered at most first order stations and many co-operative stations. Farmers that took advantage of the unseasonably mild weather during the first half of April had to replant after crops were killed off by the freeze. In some cases, crops had to be replanted even though the growing point was below the surface. This was due to the soil being a sandy loam which allowed freezing temperatures to penetrate into the ground.

• TornadoEF2, 6.9 mi path, 50 yd wide12/05/2017

  Wayland, Clark County

  1 injured, $104K damage

  What happened

  An NWS Storm Survey team found that an EF-2 tornado touched down in an open field southwest of Wayland, Missouri damaging trees and breaking windows. The tornado then moved east northeast over rural areas damaging trees. As the tornado approached Highway 27, it strengthened, causing EF-2 damage to power poles. The tornado hit a DOT facility, destroying doors and a salt shelter. When the tornado crossed the highway, a semi was overturned, causing one injury. The tornado crossed the Des Moines River into Iowa where it lifted. The peak estimated winds were 115 MPH.

• Clark County Cons Pwsd 1Serves 8,000 · Groundwater · Local governmentNo health violations+2 monitoring or reporting
• Kahoka Public Works PwsServes 1,961 · Groundwater · Local governmentNo health violations+2 monitoring or reporting
• Wayland PwsServes 420 · Purchased groundwater · Local governmentNo health violations+7 monitoring or reporting
• Wyaconda PwsServes 209 · Purchased groundwater · Local governmentNo health violations+1 monitoring or reporting