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Phelps County, Missouri

Natural disaster risk, federal disaster history and flood insurance facts.

Relatively Low overall risk
56th of 115highest risk in Missouri
$19Mexpected losses a year
23federal declarations
1 in 250homes with flood insurance
Photo: U.S. Geological Survey, public domain

Phelps County, Missouri has a relatively low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 54% of US counties. It ranks 56th of 115 counties in Missouri. The costliest hazards here are inland flooding, cold waves and heat waves. FEMA estimates about $19 million a year in expected losses, or roughly $420 per resident. Since 1976 it has been included in 23 federal disaster or emergency declarations for natural events (17 major disasters). The most recent was in May 2025 (severe storms, straight-line winds, tornadoes and wildfires). Fewer than 1 in 100 homes here carry federal flood insurance (76 policies). Since 1978, federal flood insurance has paid about $12 million on 305 claims here.

FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.

Top risks in Phelps County

$7.4 million a yearExpected losses. Damaging events about 3 times a year.
  • Check the FEMA flood map for your address, and ask the seller or landlord about past flooding.
  • Price a flood policy now. Most new federal policies take 30 days to start.

Cold wave

Moderate
$3.3 million a yearExpected losses. Damaging events about 2 times a year.
  • Insulate pipes in outside walls, crawl spaces and garages.
  • Know how to shut off the main water valve.

Heat wave

Moderate
$3.2 million a yearExpected losses. Damaging events about 12 times a year.
  • Check that cooling works before summer.
  • Know where the nearest cooling center is.
HazardRatingScoreExpected loss a year
Inland floodingLow52.4
$7M
Cold waveModerate77.6
$3M
Heat waveModerate89.9
$3M
EarthquakeLow79.5
$2M
TornadoLow38.5
$843K
Strong windModerate59.3
$759K
Ice stormHigh86.6
$716K
LightningModerate59.6
$348K
Winter weatherModerate76.8
$190K
HailLow34.4
$151K
WildfireVery Low57.9
$79K
DroughtVery Low29.7
$26K
HurricaneVery Low26.3
$11K
LandslideLow69.4
$6K

Scores are percentiles: a score of 90 means higher risk than about 90% of US counties for that hazard. Hazards FEMA does not rate here are left out. Social vulnerability is relatively low and community resilience is relatively high in FEMA's measures.

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

Federal declarations for natural events that included Phelps County. 2020s bar runs to November 2026.

By type

Severe Storm13
Flood5
Severe Ice Storm3
Drought1
Hurricane1

Most recent

May 21, 2025Severe Storms, Straight-Line Winds, Tornadoes, and WildfiresMajor disaster
Jan 1, 2025Severe Storms, Tornadoes, Straight-Line Winds, and FloodingMajor disaster
Jun 2, 2017Severe Storms, Tornadoes, Straight-Line Winds and FloodingMajor disaster
Jan 21, 2016Severe Storms, Tornadoes, Straight-Line Winds, and FloodingMajor disaster
Jan 2, 2016Severe Storms, Tornadoes, Straight-Line Winds, and FloodingEmergency
Aug 7, 2015Severe Storms, Tornadoes, Straight-Line Winds, and FloodingMajor disaster
Sep 6, 2013Severe Storms, Straight-Line Winds and FloodingMajor disaster
May 9, 2011Severe Storms, Tornadoes, and FloodingMajor disaster
Feb 3, 2011Severe Winter StormEmergency
Jun 19, 2009Severe Storms, Tornadoes, and FloodingMajor disaster
Show all 23
Jan 30, 2009Severe Winter StormEmergency
Mar 19, 2008Severe Storms and FloodingMajor disaster
Feb 5, 2008Severe Storms, Tornadoes, and FloodingMajor disaster
Dec 12, 2007Severe Winter StormsEmergency
Jan 15, 2007Severe Winter Storms and FloodingMajor disaster
Mar 16, 2006Severe Storms, Tornadoes and FloodingMajor disaster
Sep 10, 2005Hurricane Katrina EvacuationEmergency
May 6, 2003Severe Storms, Tornadoes, and FloodingMajor disaster
May 6, 2002Severe Storms, Tornadoes and FloodingMajor disaster
Apr 21, 1994Severe Storms, Tornadoes, FloodingMajor disaster
Jul 9, 1993Severe Storms & FloodingMajor disaster
Dec 10, 1982Severe Storms and FloodingMajor disaster
Sep 24, 1976DroughtEmergency

Missouri also had 5 statewide declarations that did not name single counties.

Storm history since 1951

Tornado risk by county ›

The National Weather Service has logged 571 storm reports in Phelps County since 1951, with 2 deaths and 12 injuries and about $21 million in reported damage. The strongest on record here was an EF3 tornado on December 31, 2010 near Rolla Downtown Arpt.

36tornadoes
203hail reports, largest 4.25 inches
182damaging thunderstorm winds
112floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Dec 31, 2010EF3Rolla Downtown Arpt6 / 2
Jun 1, 1999F3St James0 / 0
Jan 7, 2008EF3Powellville0 / 0
May 12, 1978F2–0 / 0
Mar 14, 2025EF2Rolla Downtown Arpt1 / 0

Most damaging storms

DateTypeNearDamage
Jun 1, 1999TornadoSt James$4M
May 12, 1978Tornado–$3M
Dec 26, 2015Flash FloodFlat$3M
Mar 14, 2025TornadoRolla Downtown Arpt$3M
Nov 5, 2024FloodBeulah$2M
Sep 22, 2006TornadoSt James$2M

Source: NOAA Storm Events Database, county-based reports through Jul 10, 2026. Tornado records start in 1950, hail and wind in 1955, and floods and other storm types in 1996, so older decades undercount. Damage is in dollars of the year it happened and is often an estimate. Winter storms, heat and hurricanes are logged by forecast zone, not county, so they are not counted here.

Hurricanes and tropical storms

Hurricane risk by county ›

Since 1923, 0 hurricanes and 1 tropical storm have passed within 65 miles of the center of Phelps County. The strongest was an unnamed storm in 1923, with top winds near 45 mph about 47 miles away.

0hurricanes
0major hurricanes (Category 3+)
1tropical storms
1923most recent: unnamed storm

Strongest storms nearby

DateStormStrengthClosest
Oct 17, 1923UnnamedTropical storm, 45 mph47 mi

Most recent storms

DateStormStrengthClosest
Oct 17, 1923UnnamedTropical storm, 45 mph47 mi

Source: NOAA National Hurricane Center best-track records (HURDAT2), 1851 to 2025 for the Atlantic and 1949 to 2025 for the eastern Pacific. A storm counts if its track passed within 65 miles of the county's center while it was a tropical storm or hurricane. Strength is the storm's top sustained wind at that point, not the wind measured in the county. Older storms over the open sea were sometimes missed.

Flood insurance in Phelps County

Check your address flood zone ›
0.4%of homes have federal flood insurance (76 policies)
13.9%of homes in mapped high-risk flood zones are insured
$11.5 millionpaid on 305 flood claims since 1978
2017costliest year, with $2.9 million paid

National Flood Insurance Program (NFIP) records only; private flood policies are not included. Home counts as of Aug 3, 2026. Since 2021 NFIP prices each home separately under Risk Rating 2.0, so your price depends on the building, not the county. Ask an agent for a quote.

Homes in Phelps County

$206,500median home value (Missouri $230,300, US $332,700)
1984median year homes were built (Missouri 1978, US 1980)
44%of homes built before 1980, before many modern wind, quake and flood building rules
8.7%of homes are mobile homes, which are the least safe in tornadoes and high winds

Older homes and mobile homes usually suffer more damage in storms, floods and earthquakes, and can cost more to insure. If you are buying, ask about roof age, foundation bolting and any retrofits. Source: US Census Bureau, American Community Survey 2020 to 2024 5-year estimates; 20,295 housing units.

Compare in Missouri

All 115 ›
Largest countiesOverall riskTop hazard
St. Louis CountyHighHeat wave
Jackson CountyHighInland flooding
St. Charles CountyModerateInland flooding
St. Louis CityHighHeat wave
Greene CountyModerateInland flooding
Clay CountyModerateInland flooding
Jefferson CountyModerateInland flooding
Boone CountyModerateInland flooding

Neighboring counties

CountyOverall riskDeclarations
Pulaski CountyLow23
Texas CountyLow25
Crawford CountyLow22
Gasconade CountyVery Low19
Dent CountyLow16
Maries CountyVery Low26

Common questions about Phelps County

What is the biggest natural hazard in Phelps County?

Inland flooding has the highest expected yearly losses in Phelps County, about $7.4 million a year in FEMA's estimate. Cold wave is second at $3.3 million.

How many federal disasters has Phelps County had?

Phelps County has been included in 23 federal disaster or emergency declarations for natural events since 1976, including 17 major disasters. The most recent was Severe Storms, Straight-Line Winds, Tornadoes, and Wildfires in May 2025.

Is Phelps County a high-risk place to live?

Its overall rating is Relatively Low, 56th highest of 115 in Missouri. A county rating covers the whole area. Risk at one address can be much higher or lower, so check the FEMA flood map and ask about the home's history.

Do I need flood insurance in Phelps County?

Standard home insurance does not cover flooding. About 1 in 250 homes in Phelps County has federal flood insurance. Lenders require it in mapped high-risk zones, but many flood claims come from outside those zones.

How many tornadoes has Phelps County had?

NOAA records list 36 tornadoes in Phelps County since 1950. The strongest was an EF3 tornado on December 31, 2010 near Rolla Downtown Arpt. The weather service has also logged 203 hail reports and 112 floods here.

How many hurricanes have hit Phelps County?

NOAA's hurricane records show 0 hurricanes and 1 tropical storm passing within 65 miles of the center of Phelps County. The strongest was an unnamed storm in 1923, with winds near 45 mph.

Sources: FEMA National Risk Index (December 2025), OpenFEMA Disaster Declarations Summaries, and NFIP policy and claims data. Hazard Compass is independent and not affiliated with FEMA. These figures describe the whole county, not a single property, and are not insurance or safety advice. Report a problem.