Preview: automated baseline. Built automatically from federal data and not yet checked by hand. Check every figure against your own records before you use it in a plan.
Hazard Plain

Northumberland County, PA

Risk-assessment baseline packet. County area 42097. Release 2026-10, data as of 2026-09-28.

Download the packet

PDF: PDF, for printing and reading. Word: Word document, tables ready to paste into a plan. Excel: Excel workbook, one sheet per section, full tables. JSON: Packet data (JSON), for analysts. Full packet as a web page. File manifest (checksums, source versions).

Plan clock

Plan 108384 approved 2022-10-10, pending adoption here; not yet eligible

Plan
Northumberland County Hazard Mitigation Plan (FEMA plan 108384), pending adoption here
Approved
2022-10-10 by FEMA; not yet adopted here
Expires
2027-10-09 once adopted
As of
2026-09-28
Update underway
FEMA tracker shows a plan approvable pending adoption

Not yet eligible: adopt the approved plan.

Not yet eligible: adopt the approved plan.

Map group: Lapsed, not yet adopted or never covered.

What changed since your last plan

Plan 108384 was approved by FEMA on 2022-10-10 but is not yet adopted here, so no since-plan counts are given.

Plan status for every jurisdiction in the plan

40 jurisdictions. Each row is that jurisdiction's own plan clock. Notes include other approved plans FEMA lists for the same jurisdiction.

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryUpdate underwayNotes
Northumberland CountyCountyPlan 108384 approved 2022-10-10, pending adoption here; not yet eligibleNorthumberland County Hazard Mitigation Plan (FEMA plan 108384), pending adoption here2022-10-10 by FEMA; not yet adopted here2027-10-09 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Herndon boroughOrganized BoroughNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Kulpmont boroughOrganized BoroughApproved, expires 2027-10-09Northumberland County Hazard Mitigation Plan (FEMA plan 108384)2022-10-102027-10-09376FEMA tracker shows a plan in progress
Marion Heights boroughOrganized BoroughNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
McEwensville boroughOrganized BoroughPlan 108384 approved 2022-10-10, pending adoption here; not yet eligibleNorthumberland County Hazard Mitigation Plan (FEMA plan 108384), pending adoption here2022-10-10 by FEMA; not yet adopted here2027-10-09 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Milton boroughOrganized BoroughApproved, expires 2027-10-09Northumberland County Hazard Mitigation Plan (FEMA plan 108384)2022-10-102027-10-09376FEMA tracker shows a plan in progress
Mount Carmel boroughOrganized BoroughNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Northumberland boroughOrganized BoroughPlan 108384 approved 2022-10-10, pending adoption here; not yet eligibleNorthumberland County Hazard Mitigation Plan (FEMA plan 108384), pending adoption here2022-10-10 by FEMA; not yet adopted here2027-10-09 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
Riverside boroughOrganized BoroughNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Shamokin cityCityApproved, expires 2027-10-09Northumberland County Hazard Mitigation Plan (FEMA plan 108384)2022-10-102027-10-09376FEMA tracker shows a plan in progress
Snydertown boroughOrganized BoroughNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Sunbury cityCityNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Turbotville boroughOrganized BoroughApproved, expires 2027-10-09Northumberland County Hazard Mitigation Plan (FEMA plan 108384)2022-10-102027-10-09376FEMA tracker shows a plan in progress
Watsontown boroughOrganized BoroughApproved, expires 2027-10-09Northumberland County Hazard Mitigation Plan (FEMA plan 108384)2022-10-102027-10-09376FEMA tracker shows a plan in progress
Coal townshipTownshipNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Delaware townshipTownshipNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
East Cameron townshipTownshipNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
East Chillisquaque townshipTownshipApproved, expires 2027-10-09Northumberland County Hazard Mitigation Plan (FEMA plan 108384)2022-10-102027-10-09376FEMA tracker shows a plan in progress
Jackson townshipTownshipNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Jordan townshipTownshipNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Lewis townshipTownshipNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Little Mahanoy townshipTownshipNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Lower Augusta townshipTownshipNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Lower Mahanoy townshipTownshipNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Mount Carmel townshipTownshipApproved, expires 2027-10-09Northumberland County Hazard Mitigation Plan (FEMA plan 108384)2022-10-102027-10-09376FEMA tracker shows a plan in progress
Point townshipTownshipNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Ralpho townshipTownshipNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Rockefeller townshipTownshipApproved, expires 2027-10-09Northumberland County Hazard Mitigation Plan (FEMA plan 108384)2022-10-102027-10-09376FEMA tracker shows a plan in progress
Rush townshipTownshipNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Shamokin townshipTownshipNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Turbot townshipTownshipNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Upper Augusta townshipTownshipNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Upper Mahanoy townshipTownshipNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Washington townshipTownshipPlan 108384 approved 2022-10-10, pending adoption here; not yet eligibleNorthumberland County Hazard Mitigation Plan (FEMA plan 108384), pending adoption here2022-10-10 by FEMA; not yet adopted here2027-10-09 once adoptedFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
West Cameron townshipTownshipNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
West Chillisquaque townshipTownshipApproved, expires 2027-10-09Northumberland County Hazard Mitigation Plan (FEMA plan 108384)2022-10-102027-10-09376FEMA tracker shows a plan in progress
Zerbe townshipTownshipNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Milton Regional Sewer AuthorityWater/Sewer AuthorityNo approved plan on recordnonenonenoneFEMA tracker shows a plan in progress
Shamokin Coal Township Joint Sewer AuthorityWater/Sewer AuthorityApproved, expires 2027-10-09Northumberland County Hazard Mitigation Plan (FEMA plan 108384)2022-10-102027-10-09376FEMA tracker shows a plan in progress
Sunbury Municipal AuthorityWater/Sewer AuthorityApproved, expires 2027-10-09Northumberland County Hazard Mitigation Plan (FEMA plan 108384)2022-10-102027-10-09376FEMA tracker shows a plan in progressmember approved 2024-02-29

State plan status and tribal plans in this state: see the state page.

What the packet contains

Sections in FEMA checklist order. Each heading names the review item its tables support; whether the item is satisfied is decided by the plan and its reviewers. Full tables are in the downloads above.

Supports B1-a Hazards

15 of the 18 National Risk Index hazards apply here; omission evidence is shown only where NRI rates a hazard "Not Applicable", no federal declaration names it and Storm Events has no record of it since 1996.

Highest expected annual loss (NRI, modeled): Inland Flooding, Hurricane and Strong Wind.

Also check locally (not covered by NRI): dam failure (incl. upstream dams), levee failure, flash flood as its own subtype, ice jams, debris flows, erosion (riverine and coastal), land subsidence and sinkholes and expansive soils.

Check your state hazard mitigation plan's hazard list for this county; explain any hazard you drop.

Supports B1-b Location

  • Avalanche, Coastal Flooding, Earthquake, Hurricane, Landslide, Tornado, Tsunami, Volcanic Activity and Wildfire: Census tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.
  • Cold Wave, Drought, Hail, Heat Wave, Ice Storm, Lightning, Strong Wind and Winter Weather: Affects the whole planning area; national data do not distinguish locations within the county. Confirm locally.
  • Inland Flooding: The FEMA Flood Insurance Rate Map (FIRM) is the required location source for flooding. See the FEMA Flood Map Service Center (https://msc.fema.gov) for this county.

Supports B1-c Extent

Storm Events records for 12 of 20 hazard groups, with the scale, observed range and worst recorded event for each; the others say local data required.

  • Hail: 4 in hail, 2019-05-28
  • Thunderstorm Wind: 78 kt (90 mph) estimated gust, Thunderstorm Wind, 2018-05-15; same speed and measurement basis also recorded on 2016-06-28, 2018-05-15
  • Tornado: F3 tornado, 1985-05-31, 4 mi path length (records before 1996 may include the whole path; rating and listing come from the county where the tornado began), 2,640 yd wide, $25,000,000 property; crops not recorded (1985 dollars), 2 direct deaths, 20 direct injuries

Supports B1-d Previous occurrences

19 federal declaration rows for this area (14 counted incidents), each with type, dates and county Public Assistance dollars.

Plan 108384 was approved by FEMA on 2022-10-10 but is not yet adopted here, so no since-plan counts are given.

6 statewide declarations listed separately.

Hazards with no recorded events are stated as such (5 of 18).

Storm Events history: 447 records (notable ones in the PDF, all of them in the Excel file).

Supports B1-e Probability

FEMA annualized frequency (modeled) for each hazard, with a descriptor from a scale defined in the packet.

  • Highly likely: Hail, Lightning and Strong Wind
  • Likely: Cold Wave, Drought, Heat Wave, Ice Storm, Inland Flooding, Landslide, Tornado and Winter Weather
  • Possible: Avalanche and Hurricane

Historical frequency by intensity band (tornado, hail, wind): 9 bands from Storm Events.

Supports B1-f Variation across the planning area

Range of census tract risk scores within the area for 18 hazards (25 tracts; rated tracts only).

37 member jurisdictions: plan clock, repeat-flood count, Public Assistance dollars and event records naming the place (starter, confirm locally).

Supports B2-a, B2-b Assets and impacts

Local data required

County-level starter. The plan must describe impacts for each participant and its own assets.

Plan 108384 was approved by FEMA on 2022-10-10 but is not yet adopted here, so no since-plan counts are given.

Checklist of what to gather locally: Critical facilities and lifelines per hazard; A problem statement per participant per hazard; Changes in development in hazard-prone areas since the last approval, or a statement of none (E1-a); Future assets.

Supports B2-a Context

Population 91,636; building value $23,252,508,140 and agriculture value $199,031,679 (total, not at risk).

National Risk Index rating Relatively Low; social vulnerability Relatively Moderate; community resilience Very High.

Supports B2-c Repetitive loss

Repetitive-loss properties, FMA definition (44 CFR 77.2): 23 repetitive loss, 34 severe repetitive loss. NFIP insurance definition: 182 and 29.

Mitigated 4; insured 34; NFIP data as of 2026-08-02. Counts by occupancy and for each member community are in the packet.

Releases

Monthly releases are planned (not yet running); files for a release never change. Earlier releases will be listed here with what changed between them. All releases.

Cite this

Hazard Plain (2026). Northumberland County, PA: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-28; County area 42097). Preview: automated baseline. https://hazardplain.org/pa/42097/ Built from FEMA OpenFEMA, the FEMA National Risk Index and NOAA NCEI Storm Events; source versions in the packet's Sources list.

Source citations for the plan's bibliography (8)

How this packet is built, its sources and its limits