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GeneratorChecker

Power Outage Risk in Kansas

Kansas outages are more often a severe-storm and high-wind corridor problem than a fire-led interpretation of the state, with winter and ice support layered in.

Kansas belongs in the Plains storm corridor: high wind, flash flood, tornado, and ice can all matter, but the practical backup plan starts with essentials across the same high-BPI counties.

30,697 electricity-dependent Medicare beneficiaries statewide, with Sedgwick, Butler, Shawnee, and Johnson clearing the public BPI threshold
FEMA National Risk Index (NRI)
71.3 / 100
Relatively High
FEMA Declarations (2014-2023)
28 Major incidents
Highest Risk Window
Dec-Feb

Plains Storm, High-Wind, and Ice Exposure

JanJunDec

What drives outage risk in Kansas

Winter Weather 86.8
FEMA Decl.
Wildfire 70.0
FEMA Decl. 11
Hurricane 10.4
FEMA Decl.
Severe Storm Not scored by NRI
FEMA Decl. 9

Why Kansas is different

Kansas's practical outage record is led by severe storm and high-wind exposure, not fire activity. The broader outage record is led by thunderstorm wind, high wind, flash flood, and tornado activity, which makes Kansas a Plains storm-and-wind state first, with winter and ice layered into the backup plan.

The county overlap reinforces that corridor logic. HHS emPOWER counts 30,697 electricity-dependent Medicare beneficiaries statewide, and the public BPI layer is led by Sedgwick, Butler, Shawnee, Johnson, and Reno. That points first to refrigeration, communications, and medical continuity, with winter-support loads added for the longer outages that need them.

Notable Recent Events

Severe Storms, Straight-line Winds, Tornadoes, and Flooding (2023)

FEMA DR-4747 covers Kansas severe storms, straight-line winds, tornadoes, and flooding from July 2023, within the 2014-2023 federal record.

Source: FEMA DR-4747

Evidence trail

State source notes

These notes trace the editorial claims above back to FEMA, DOE, utility, or other cited records.

5 notes
  1. 1 OpenFEMA API

    FEMA declaration count (28) from OpenFEMA API, deduplicated by disaster number, DR/EM/FM types, 2014-2023; Kansas's mix in this window includes Fire (11), Severe Storm (9), Snowstorm (2), and Severe Ice Storm (1).

  2. 2 FEMA NRI county layer

    NRI composite score (71.3) from FEMA NRI county layer, population-weighted to state level; top modeled hazards are Ice Storm, Hail, and Winter Weather.

  3. 3 NOAA Storm Events 2005-2024

    NOAA outage-relevant event mix is led by Thunderstorm Wind (14,149), High Wind (2,284), Flash Flood (2,081), and Tornado (1,803), with Sedgwick, Ford, Butler, and Sherman leading county counts.

  4. 4 HHS emPOWER + GeneratorChecker BPI review

    HHS emPOWER counts 30,697 electricity-dependent Medicare beneficiaries statewide; Sedgwick, Butler, Shawnee, Johnson, and Reno are the strongest county anchors in the public BPI layer.

  5. Kansas Severe Storms, Straight-line Winds, Tornadoes, and Flooding DR-4747 from FEMA disaster declaration records.

Structured FEMA NRI, HHS emPOWER, NOAA Storm Events, and EIA methodology is documented separately on the methodology page.

NRI's top modeled hazards are Ice Storm, Hail, and Winter Weather, while NOAA's outage-relevant record is led by Thunderstorm Wind, High Wind, Flash Flood, and Tornado events..

Historical Storm Patterns in Kansas

NOAA storm-event records filtered to outage-relevant event types for Kansas. Counts reflect historical storm-event assignments, not confirmed utility outages.

Official data GeneratorChecker analysis

Analysis window

2005-01 to 2024-12

Included storm-event records

24,709

Source as of

2026-03

Included exact NOAA event types for Kansas: Thunderstorm Wind, Tornado, High Wind, Strong Wind, Flash Flood, Flood, Winter Storm, Ice Storm, Freezing Rain, Heavy Snow, Blizzard.

Hazard seasonality

In this filtered NOAA record set for Kansas, Jun has the highest monthly count (5,475 records) , and Thunderstorm Wind is the leading event type. This chart shows frequency in NOAA records, not how severe a specific outage may be.

Sorted Jan–Dec
Jan 1,108
Feb 1,064
Mar 1,054
Apr 2,024
May 4,284
Jun 5,475
Jul 3,188
Aug 2,879
Sep 1,098
Oct 749
Nov 643
Dec 1,143

Top outage-relevant event types

  1. 1. Thunderstorm Wind 14,149
  2. 2. High Wind 2,284
  3. 3. Flash Flood 2,081
  4. 4. Tornado 1,803
  5. 5. Winter Storm 1,352
  6. 6. Flood 1,225

Counties with highest historical outage-relevant storm event frequency

  1. 1. SEDGWICK 877

    92.0% of listed records were matched directly to this county.

  2. 2. FORD 600

    62.5% of listed records were matched directly to this county.

  3. 3. BUTLER 554

    91.0% of listed records were matched directly to this county.

  4. 4. SHERMAN 553

    71.6% of listed records were matched directly to this county.

  5. 5. FINNEY 528

    63.4% of listed records were matched directly to this county.

  6. 6. SHAWNEE 486

    91.6% of listed records were matched directly to this county.

Coverage and limitations

With the current Kansas NWS county crosswalk, mapped forecast zones are effectively 1:1 with counties, and no unresolved forecast zones were present in this state contract.

Direct county match

77.7%

Mapped from forecast zone

22.3%

Not assigned to county ranking

0.0%

Unresolved forecast zones

0

  • Forecast-zone events with no current NWS county crosswalk entry are excluded from county-level rankings.
  • Forecast-zone events are mapped with the current NWS county crosswalk, which may not exactly match historical zone boundaries across the full analysis window.
  • Counts reflect historical NOAA storm event records, not confirmed utility outage counts.
  • Marine event types remain excluded from this state contract even when coastal impacts may be operationally relevant.

Medical Outage Sensitivity in Kansas

County-level HHS emPOWER counts for electricity-dependent Medicare beneficiaries in Kansas.

Official data

30,697 Medicare beneficiaries in Kansas have claims associated with electricity-dependent medical equipment. (HHS emPOWER, 2026-03)

County-level HHS emPOWER records for this state. Medicare enrollment data only. 105 counties are included in this state snapshot.

Counties by total count

  1. 1. Sedgwick 5,501
  2. 2. Johnson 3,733
  3. 3. Shawnee 1,625
  4. 4. Wyandotte 1,298
  5. 5. Douglas 864

Counties by share of Medicare beneficiaries

Counties with at least 1,000 Medicare beneficiaries
  1. 1. Sherman 12.7%

    Smaller Medicare base; interpret this percentage with extra caution.

  2. 2. Barber 11.4%

    Smaller Medicare base; interpret this percentage with extra caution.

  3. 3. Harper 10.2%

    Smaller Medicare base; interpret this percentage with extra caution.

  4. 4. Russell 10.2%

    Smaller Medicare base; interpret this percentage with extra caution.

  5. 5. Phillips 10.0%

    Smaller Medicare base; interpret this percentage with extra caution.

GeneratorChecker analysis

Counties with higher concentrations may face elevated community-level demand for backup power during outages. This does not indicate individual medical necessity.

Limitations: Reflects Medicare beneficiaries with claims associated with electricity-dependent medical equipment. Does not capture non-Medicare or uninsured populations. HHS masks cells from 1 to 10 as 11.

GeneratorChecker BPI BPI v1.0 · NOAA 2005-2024 · HHS emPOWER 2026-03

Backup Priority Index in Kansas

The GeneratorChecker Backup Priority Index is a county shortlist for backup planning, combining historically frequent outage-relevant storm activity with larger county counts of electricity-dependent Medicare beneficiaries. It is planning context, not a forecast or an outage guarantee.

Official data GeneratorChecker analysis

BPI version

v1.0

Analysis window

2005-01 to 2024-12

Matched counties

105

Counties qualify for the public BPI only when both signals land at or above the 80th percentile within the state. The shortlist excludes low-base medical counties and counties with less than 30% direct NOAA county matching.

Qualifying counties shown on the page: 5.

Top BPI counties in this state

Percentiles are computed within Kansas only and are not comparable across states.

Source notes
  1. 1. SEDGWICK

    County FIPS 20173

    Storm frequency · Top 1% statewide Medical exposure · Top 1% statewide

    At-risk Medicare count

    5,501

    Storm-event records

    877

    Direct NOAA county match

    92.0%

  2. 2. BUTLER

    County FIPS 20015

    Storm frequency · Top 2% statewide Medical exposure · Top 5% statewide

    At-risk Medicare count

    748

    Storm-event records

    554

    Direct NOAA county match

    91.0%

  3. 3. SHAWNEE

    County FIPS 20177

    Storm frequency · Top 5% statewide Medical exposure · Top 2% statewide

    At-risk Medicare count

    1,625

    Storm-event records

    486

    Direct NOAA county match

    91.6%

  4. 4. JOHNSON

    County FIPS 20091

    Storm frequency · Top 7% statewide Medical exposure · Top 1% statewide

    At-risk Medicare count

    3,733

    Storm-event records

    407

    Direct NOAA county match

    89.4%

  5. 5. RENO

    County FIPS 20155

    Storm frequency · Top 6% statewide Medical exposure · Top 6% statewide

    At-risk Medicare count

    731

    Storm-event records

    451

    Direct NOAA county match

    85.6%

How to read the BPI

  • BPI qualifies a county only when both the NOAA outage-relevant storm signal and the HHS emPOWER medical-count signal are at or above the 80th percentile within the state.
  • The medical signal uses total county count of electricity-dependent Medicare beneficiaries, not the share of beneficiaries within each county.
  • Counties with weak direct NOAA county matching stay out of the public BPI list even when their storm percentile is high.
  • Percentiles are computed within each state only and are not comparable across states.
  • The BPI is a planning layer. It does not claim a forecast, a utility reliability score, or an individualized medical-risk assessment.

Size your backup for Kansas

Start with storm-corridor essentials, then add winter support if your home depends on blower power in ice or cold-weather outages.

MOST POPULAR

24-hour plains storm essentials

Refrigeration, communications, and medical continuity for the shorter severe-storm and high-wind outages common across Kansas.

French Door Refrigerator WiFi Router CPAP Machine

Load

338W

Target

24h

Minimum

13,400 Wh

This is the more general Kansas case for storm-corridor outages across high-BPI counties.

Size this scenario in calculator

48-hour ice and winter support

Add heating-system support for households whose fuel-fired heat still depends on blower power during a longer ice or cold-weather outage.

French Door Refrigerator Gas Furnace Fan (Blower) WiFi Router CPAP Machine

Load

1396W

Target

48h

Minimum

110,100 Wh

This assumes a fuel-fired furnace or boiler still needs blower power. Homes with electric heat should model a different heating profile.

Size this scenario in calculator

Critical Note: No single portable power station in our database covers the full 24-hour baseline at this load (13,400 Wh target vs. 6,144 Wh max in our current database). Use solar recharge, load rotation, or expandable systems for longer events.

Common mistakes in Kansas

  • Letting fire declarations dominate the planning picture when severe storm and high-wind exposure are the more useful household signal.

  • Flattening Kansas into a tornado-only pattern and missing the repeated wind, flash flood, and ice exposure.

  • Ignoring large-county medical loads while planning only for comfort or convenience devices.

Top mistake: Planning around one headline hazard when Kansas households often see high wind, flood, tornado, and winter stress in the same planning horizon.

Data Sources & Methodology

NRI risk details

Composite score: 71.3 / 100

Rating: Relatively High

Top modeled hazards: Ice Storm, Hail, Winter Weather

Hurricane score: 10.4

Winter Weather score: 86.8

Wildfire score: 70.0

FEMA declaration breakdown

Total (2014-2023): 28

Most recent: 2023-10-26 Severe Storm

Type Count
Fire 11
Severe Storm 9
Biological 5
Snowstorm 2
Severe Ice Storm 1
Sizing formula

Required Wh = (Total Load W × Target Hours / Inverter Derate) × Safety Factor

Inverter derate: 0.70 (30% real-world loss)

Safety factor: 1.15

Rounding: Up to nearest 100 Wh

Historical utility-reported and modeled data. Your experience may vary.

Frequently Asked Questions

How high is outage risk in Kansas?

Kansas has an NRI composite risk score of 71.3 (Relatively High), with 28 federal declarations from 2014 to 2023. NRI's top modeled hazards are Ice Storm, Hail, and Winter Weather, while NOAA's outage-relevant record is led by Thunderstorm Wind, High Wind, Flash Flood, and Tornado events..

What backup size should I target in Kansas?

For the primary scenario on this page (24-hour plains storm essentials), the estimated minimum is 13,400 Wh for a 24-hour target. Refine this in the calculator with your actual devices.

Why do modeled risk and declaration history sometimes differ?

NRI is a modeled risk index based on hazard exposure, vulnerability, and expected loss. FEMA declarations reflect federally declared incidents. They answer different questions — use both signals together for planning.

What are the most common outage-planning mistakes in Kansas?

Planning around one headline hazard when Kansas households often see high wind, flood, tornado, and winter stress in the same planning horizon. See the common mistakes section above for more state-specific pitfalls.