Changelog

Release 2026-10 (current)

Data as of

2026-09-30

First published

2026-09-30

Built

2026-10-17

Packets

3,488

Label

Automated baseline

Corrected 2026-10-01

The files of release 2026-10 were corrected on 2026-10-01. The data as of date is unchanged (2026-09-30).

• Wording corrections.
• Public Assistance rows now include payments FEMA filed under variant applicant names or without a county.
• Public Assistance before 1998 is noted as not in FEMA's data.
• Storm records for a few NWS forecast zones were corrected.
• The "Hand-checked" label now reads "checked line by line against live FEMA and NOAA sources".

The files were corrected again later on 2026-10-01. The data as of date is still unchanged (2026-09-30).

• Public Assistance payments FEMA filed under a county department's name (such as roads, public works or emergency management) are now counted with the county.
• More of the name forms FEMA uses for Public Assistance applicants are now matched to the right county or town.
• Applicant names that could belong to more than one place are now noted on the rows they affect.
• Storm records that mention a place now show the distance and direction NOAA gives from that place.
• Hazards named in the titles of recent disaster declarations are now mapped to their hazard type.
• Storm records for NWS forecast zones that lie in a single county are now placed in that county.
• Other wording corrections.

The Methods page describes the rules behind these corrections, under "Method details", "Data-error screens" and "Source quirks shown as recorded".

Corrected 2026-10-02

The files of release 2026-10 were updated on 2026-10-02 with a new table. The data as of date is unchanged (2026-09-30).

• A new "Natural hazards by jurisdiction" table now appears in the packet for every county and plan area where FEMA's National Risk Index rates census tracts. It lists, for each city, town, township or county area in FEMA plan data, the hazards the National Risk Index rates in the census tracts that area covers.
• The table is built from the National Risk Index census tract ratings and Census 2020 census blocks, which show which tracts each area covers.
• It is a draft for planning teams to confirm and trim, not a finished finding for any town or city.
• Packets for Puerto Rico and the Island Areas explain why no table is shown there.

The Methods page describes the rules behind these corrections, under "Method details", "Data-error screens" and "Source quirks shown as recorded".

Corrected 2026-10-03

The files of release 2026-10 were corrected on 2026-10-03. The data as of date is unchanged (2026-09-30).

• A caution now appears next to a FEMA National Risk Index expected annual loss that is far above the neighboring counties' figures when NOAA records show little or no recorded loss for that hazard in the county. FEMA's figure and rank are shown unchanged. Drought is not flagged, because NOAA rarely records drought damage.
• Storm records that NOAA filed as wind, rain, flood or storm surge, but whose NOAA narrative names a hurricane or tropical storm (for example Hurricane Charley in 2004 or Hurricane Harvey in 2017), now also count in the hurricane profile. They are labeled as such and are not counted twice. A note explains that some records name the storm only as context, not as the cause.
• The contact email address is now readable without JavaScript.

The Methods page describes the rules behind these corrections, under "Method details", "Data-error screens" and "Source quirks shown as recorded".

Corrected 2026-10-13

The files of release 2026-10 were corrected on 2026-10-13 after a further check against live FEMA and NOAA sources. The data as of date is unchanged (2026-09-30).

• Public Assistance payments FEMA filed as "Township of" a place in New York or Wisconsin, where towns have no separate township government, are now counted with that town (for example Springbrook, Wisconsin, and Sidney, New York).
• Public Assistance payments FEMA filed under a municipal office or hall name (such as "Minong Village Office") are now counted with that city, village or town.
• Public Assistance payments to a school district filed with its district number added after a comma or in parentheses are now counted with that district.
• When a plan update awaits local adoption but FEMA's plan tracker already shows the plan as approved, the label now says it was approved on that date and is pending adoption here.
• On the most damaging storm record, other dates with the same recorded damage are now named.
• In the hazards-by-jurisdiction table, "(unincorporated area)" now appears once in the county row, and the note on places only partly in the county now says area, not land.
• The note on statewide declarations now says that a declaration that also lists this county is shown once, in the county table.
• The Methods page now explains how NOAA storm records for several forecast zones in one county are counted once.
• The national bulk download now includes the expected-loss caution test and the storm records linked to a named hurricane or tropical storm.
• Packets that were checked again line by line against live FEMA and NOAA sources show the hand-checked label again.
• Links to the Methods, About, Downloads and Changelog pages with a stray period, comma or bracket at the end now open the page.

The files were corrected again later on 2026-10-13. The data as of date is still unchanged (2026-09-30).

• The caution next to a FEMA expected annual loss now says the figure is far above the neighboring counties' median, which is what it is tested against.
• The NOAA check behind that caution now also reads NOAA forecast zone records that name the county but that NOAA's zone files do not place, unless the NOAA narrative places the loss in another county.
• Hazards with the same expected annual loss now share a rank.
• Public Assistance FEMA filed under a city department's name (such as "Omaha Public Works") is now noted on the city's row with its amount. It is not counted with the city.
• When a hazard's worst storm record is a forecast zone record and the zone covers more than one county area, the packet now says how many county areas the zone covers.
• In Connecticut, plan participants that FEMA lists under a former county are now labeled as such.
• Public Assistance FEMA filed under the town name of a consolidated town and city (for example Derby, Connecticut) is now counted with the city.
• Public Assistance FEMA filed under a school district's legal name (for example Omaha Public Schools) is now counted with that district. A note says FEMA files some districts under other names that are not yet counted.

The Methods page describes the rules behind these corrections, under "Method details", "Data-error screens" and "Source quirks shown as recorded".

Corrected 2026-10-17

The site of release 2026-10 was republished on 2026-10-17 with fixes from a code review. No packet numbers changed. The data as of date is unchanged (2026-09-30).

• On the state pages, sorting by plan expiration date now puts blank dates and plans pending local adoption last, and a pending plan sorts by its expiration date.
• The home page map tooltip now uses the same group names as the legend and the tables.
• Other internal robustness fixes to downloads, checks and the build. They do not change any packet.

The Methods page describes the rules behind these corrections, under "Method details", "Data-error screens" and "Source quirks shown as recorded".

First release. It covers every U.S. county area in the National Risk Index, including those absent from FEMA plan data, plus every Vermont town. There is no earlier release to compare with, so no changes are listed; from the next release on, this page lists what changed (plan status changes, new declarations, new Storm Events records) and each packet's "What changed" box compares with the prior release.

Downloads for this release