County Hazards

Storm events on record through

Siskiyou County, California Storm events, disaster declarations and flood insurance claims on record

This page is a county record of past events and claims. It does not show the flood zone or the risk of an address. For the flood map of an address, use FEMA's address search (opens in a new tab).

NCEI has 151 storm events on record for Siskiyou County, California, from 1950 through 30 Jun 2026.

The newest event on record is a thunderstorm wind event on 15 Jul 2024.

FEMA has 23 disaster declarations on record for the county from 1964 through 1 Oct 2026. The newest is DR-4750 of 21 Nov 2023.

OpenFEMA has 67 NFIP claims on record for the county from 1978 through 8 Sep 2026. The NFIP paid $470 thousand on these claims.

The NWS collects event reports from a variety of sources, which include (but are not limited to): county, state, and federal emergency management officials, local law enforcement officials, SKYWARN spotters, NWS damage surveys, newspaper clipping services, the insurance industry, and the general public, among others.

The National Weather Service reports property and crop damage estimates using available data at the time of event reporting. These values should therefore be considered broad estimates. Damage amounts are not adjusted for inflation.

Zone (NWS Forecast Zone): A zone is a geographic area defined by the NWS for issuing forecasts, watches, and warnings. While zones often align with counties, they can also represent smaller or subdivided areas within a county to account for differences in weather conditions, such as elevation or proximity to water. Larger-scale events—such as heat, cold, drought, and winter storms—are typically recorded by zone.

The words of the agency. Source: NOAA NCEI, Storm Events Database, page "Frequently Asked Questions", copied on .

This is raw, unedited data from FEMA's National Emergency Management Information System (NEMIS) and as such is subject to a small percentage of human error.

The words of the agency. Source: FEMA, OpenFEMA Dataset "Disaster Declarations Summaries - v2", copied on . The page gives: last data refresh 2026-10-01.

It is derived from the National Flood Insurance Program system of record, staged in the program's reporting platform and redacted to protect policy holder personally identifiable information.

The words of the agency. Source: FEMA, OpenFEMA Dataset "NFIP Redacted Claims - v3", copied on . The page gives: last data refresh 2026-09-09.

Dates of the data: NCEI storm events through . OpenFEMA disaster declarations through . NFIP claims through .

Since the last update: no change is on record for Siskiyou County. The site compares the agency data at each update. Updates of the data

The five hazards

Storm events on record for Siskiyou County by hazard and period (NCEI, through 30 Jun 2026)
Hazard1950 to 20262000 to 20092010 to 20192020 to 2026Newest event
Hail236130
Tornado1000
Flood317103
Wind271031
Winter22000
Other event types47Heat, cold, drought, wildfire, lightning, fog, tropical and other types
All storm events151283010

A hazard name opens the page of that hazard for the county. A hazard has a page from 10 events. The year 2026 has the events through 30 Jun 2026 only.

Forecast zones with the name of the county give 59 of the 151 events. A county count has the events that NCEI gives to the county. It also has the events of a forecast zone that has the name of the county. A zone with another name counts for the state only.

Rates of Siskiyou County beside the total of the counties of California and of the United States
MeasureSiskiyouAll counties of CaliforniaAll counties of the United States
Storm events for each 100 square miles, 1950 to 20262.49.649.3
Storm events for each 10,000 residents, 1950 to 202634.23.852.5
NFIP claims for each 1,000 policies in force, 2016 to 20255.552.5185.3

The columns for the state and the United States total the counties. They count the events of each county in the same way as the county column. The site gives a rate for each 10,000 residents only from 10,000 residents. Residents and area: Census Bureau, 2021.

Newest storm events on record

Thunderstorm Wind59 mph (51 knots, measured gust)

At MONTAGUE ARPT

Heavy Rain

1 mile SSE of KLAMATH RIVER

Flash Flood

3 miles SE of GOTTVILLE

Flash Flood

3 miles NW of KLAMATH RIVER

Flash Flood

4 miles NNW of HOTLUM

Debris Flow

4 miles NNE of HOTLUM

Debris Flow

3 miles WSW of COUGAR

Debris Flow

2 miles SW of HAPPY CAMP ARPT

Debris Flow

At CLEAR CREEK

Debris Flow

At CLEAR CREEK

Hail1.00 in, quarter size

2 miles SW of MACDOEL

Hail1.00 in, quarter size

5 miles SSW of WEED

Hail1.00 in, quarter size

1 mile E of TENNANT

Lightning

1 mile SW of MT HEBRON

Hail1.00 in, quarter size

2 miles SSW of GREENVIEW

Flood

2 miles ENE of HAMBURG

Flood

2 miles NE of HAMBURG

Flood

2 miles NE of CLEAR CREEK

Flood

2 miles SW of HOTLUM

Hail1.00 in, quarter size

1 mile SE of KLAMATH RIVER

Thunderstorm Wind60 mph (52 knots, measured gust)

At WEED ARPT

Debris Flow

2 miles SE of SEIAD VLY

Debris Flow

6 miles SW of YREKA

Flash Flood

1 mile W of MC CLOUD

Thunderstorm Wind60 mph (52 knots, estimated gust)

1 mile S of MONTAGUE

The 25 events above are the newest in the NCEI record. A place is the text of the NCEI record: a distance and a direction from a reference place. Wind speed is in miles per hour, with the knots that NCEI gives. The site does not show a place text that names a private property or reads as a person. Download these events (CSV)

Storm events on record for Siskiyou County by year, 1950 to 2026
DecadeYear that ends in 0Year that ends in 1Year that ends in 2Year that ends in 3Year that ends in 4Year that ends in 5Year that ends in 6Year that ends in 7Year that ends in 8Year that ends in 9All
1950s00000000303
1960s00000000000
1970s00000000000
1980s00000000000
1990s100000112234380
2000s082931410028
2010s4011210354030
2020s0522100 (part of the year)10

A darker cell has a larger count. The number is in each cell.

NCEI recorded tornado events from 1950, and hail and thunderstorm wind events from 1955. It recorded all event types from 1996. A count before 1996 has fewer event types.

FEMA disaster declarations

FEMA has 23 disaster declarations on record for Siskiyou County from 1964 through 1 Oct 2026. The newest is DR-4750: TROPICAL STORM HILARY.

Disaster declarations that name Siskiyou County (OpenFEMA, through 1 Oct 2026)
DeclaredNumberTypeIncident typeTitle in the FEMA recordAssistance
DR-4750Major disasterHurricaneTROPICAL STORM HILARYPublic
DR-4683Major disasterFloodSEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDESPublic
FM-5450Fire management assistanceFireMILL FIREPublic
FM-5393Fire management assistanceFireLAVA FIREPublic
DR-4569Major disasterFireWILDFIRESIndividual, Public
FM-5361Fire management assistanceFireSLATER FIREPublic
DR-4482Major disasterBiologicalCOVID-19 PANDEMICIndividual, Public
EM-3428EmergencyBiologicalCOVID-19Public
FM-5250Fire management assistanceFireKLAMATHON FIREPublic
DR-4308Major disasterFloodSEVERE WINTER STORMS, FLOODING, AND MUDSLIDESPublic
DR-4301Major disasterSevere StormSEVERE WINTER STORMS, FLOODING, AND MUDSLIDESPublic
FM-5079Fire management assistanceFireBOLES FIREPublic
FM-5068Fire management assistanceFireOREGON GULCH FIREPublic
DR-1884Major disasterSevere StormSEVERE WINTER STORMS, FLOODING, AND DEBRIS AND MUD FLOWSPublic
DR-1628Major disasterSevere StormSEVERE STORMS, FLOODING, MUDSLIDES, AND LANDSLIDESIndividual, Public
EM-3248EmergencyHurricaneHURRICANE KATRINA EVACUATIONPublic
DR-1155Major disasterSevere StormSEVERE STORMS, FLOODING, MUD AND LANDSLIDESIndividual, Public
DR-1046Major disasterSevere StormSEVERE WINTER STORMS, FLOODING LANDSLIDES, MUD FLOWIndividual, Public
DR-979Major disasterFloodSEVERE WINTER STORM, MUD & LAND SLIDES, & FLOODINGIndividual, Public
EM-3023EmergencyDroughtDROUGHTPublic
DR-412Major disasterFloodSEVERE STORMS & FLOODINGIndividual, Public
DR-283Major disasterFloodSEVERE STORMS & FLOODINGIndividual, Public
DR-183Major disasterFloodHEAVY RAINS & FLOODINGIndividual, Public

DR is a major disaster declaration. EM is an emergency declaration. FM is a fire management assistance declaration. A declaration for the whole state is on the California page. What a disaster declaration is

The dataset includes declared recovery programs and geographic areas (county not available before 1964; Fire Management records are considered partial due to historical nature of the dataset).

The words of the agency. Source: FEMA, OpenFEMA Dataset "Disaster Declarations Summaries - v2", copied on . The page gives: last data refresh 2026-10-01.

Flood insurance claims (NFIP)

OpenFEMA has 67 NFIP claims on record for Siskiyou County from 1978 through 8 Sep 2026.

The NFIP paid $469,535 on 38 claims.

The county has 5.5 NFIP claims for each 1,000 policies in force. The rate uses 1 claim with a year of loss from 2016 to 2025. FEMA counts 181 residential policies in force on 3 Aug 2026. The claims have every type of building. FEMA counts residential policies only.

NFIP claims in Siskiyou County by year of loss, 1978 to 2026
DecadeYear that ends in 0Year that ends in 1Year that ends in 2Year that ends in 3Year that ends in 4Year that ends in 5Year that ends in 6Year that ends in 7Year that ends in 8Year that ends in 9All
1970s000
1980s143100100010
1990s02000317280050
2000s00000410005
2010s00000101002
2020s0000000 (part of the year)0

A darker cell has a larger count. The number is in each cell.

NFIP claims by year of loss with the amount paid: 13 years
NFIP claims in Siskiyou County by year of loss, with the amount paid (OpenFEMA, through 8 Sep 2026)
Year of lossClaimsClaims with a paymentAmount paid
20171not shownnot shown
20151not shownnot shown
20061not shownnot shown
20054not shownnot shown
19972821$387,620
1996178$28,971
19953not shownnot shown
19912not shownnot shown
19861not shownnot shown
19831not shownnot shown
19823not shownnot shown
19814not shownnot shown
19801not shownnot shown

A year with fewer than 5 claims shows the count of claims and no amount. A year with 1 to 4 claims with a payment shows no amount either. Such an amount could point to one property. The amount is the sum of the building, contents and increased cost of compliance payments. FEMA counts 2 multiple-loss properties in the county (2 Aug 2026). How FEMA redacts NFIP claims

This dataset is not intended to be an official federal report, and should not be considered an official federal report.

Note, the County Code field may not reflect the individual county the property is located as projects can be associated with more than one county

The words of the agency. Source: FEMA, OpenFEMA Dataset "NFIP Redacted Claims - v3", copied on . The page gives: last data refresh 2026-09-09.

FEMA cannot verify the quality and/or timeliness of any data or any analysis derived therefrom after the data has been retrieved from FEMA.gov.

The words of the agency. Source: FEMA, OpenFEMA Terms and Conditions, copied on . The page gives: last updated 2025-01-22.

National Risk Index

Risk Index rating
Relatively Moderate
Risk Index score
89.0 of 100
Expected Annual Loss rating
Relatively Moderate
Expected Annual Loss
$57 million
Social Vulnerability rating
Relatively High
Community Resilience rating
Relatively Moderate
National Risk Index of Siskiyou County by hazard type (FEMA, December 2025 release)
Hazard typeRisk Index ratingExpected Annual Loss
AvalancheRelatively Moderate$502,358
Cold waveVery Low$25,759
DroughtRelatively High$5,393,876
EarthquakeRelatively Low$2,897,230
HailVery Low$51,266
Heat waveRelatively Low$991,311
Inland floodingRelatively Moderate$31,155,073
LandslideRelatively Moderate$46,988
LightningRelatively Low$98,137
Strong windVery Low$27,824
TornadoVery Low$2,321
Volcanic activityRelatively High$1,601,249
WildfireRelatively High$14,080,229
Winter weatherRelatively Moderate$118,471

The National Risk Index dataset leverages available source data for natural hazard and community risk factors to develop a baseline relative risk measurement for each United States county and Census tract.

The rating is a qualitative categorization that describes the community in comparison to all other communities at the same level, ranging from “Very Low” to “Very High.”

The National Risk Index data are meant for planning purposes only.

The words of the agency. Source: FEMA, National Risk Index Data: Frequently Asked Questions (December 2025, v1.20), copied on .

The labels and the ratings are those of FEMA. Expected Annual Loss is a figure for a whole county. It is not a figure for a property. How to read the National Risk Index

Tropical storm and hurricane tracks

The HURDAT2 record of the National Hurricane Center goes through the 2025 season. It has no track at tropical storm strength within 100 miles of the centre point of Siskiyou County.

ZIP Codes, cities and towns of Siskiyou County

Each ZIP Code below has a page with its NFIP claims by year. 5 more ZIP Codes have fewer than 5 claims and no page.

A city or town has no page of its own. This page is the record for the whole county, which has these places:

  • Carrick
  • Dorris
  • Dunsmuir
  • Edgewood
  • Etna
  • Fort Jones
  • Gazelle
  • Greenview
  • Grenada
  • Happy Camp
  • Hornbrook
  • Lake Shastina
  • Macdoel
  • McCloud
  • Montague
  • Mount Hebron
  • Mount Shasta
  • Tennant
  • Tulelake
  • Weed
  • Yreka

Official channels

These links open the pages of the agencies. The site checked the links on .

Cite this page

County Hazards. "Siskiyou County, California: storm events, disaster declarations and flood insurance claims on record". https://countyhazards.com/county/ca/siskiyou/. Data: NOAA NCEI Storm Events Database through 30 Jun 2026; FEMA OpenFEMA disaster declarations through 1 Oct 2026; FEMA OpenFEMA NFIP claims through 8 Sep 2026. Page made on .

Where the data comes from

  • Storm events: NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026.
  • Disaster declarations: OpenFEMA Disaster Declarations Summaries, read on 1 Oct 2026.
  • NFIP claims: OpenFEMA NFIP Claims, as of 8 Sep 2026. Multiple-loss properties: 2 Aug 2026. Policies in force: 3 Aug 2026.
  • National Risk Index: FEMA, December 2025 release. Storm tracks: NHC HURDAT2 through the 2025 season.
  • Residents, area, places and adjacent counties: US Census Bureau, 2021 vintage.

How the counts are made · Corrections · Hazards in all states: hail, tornado, flood, wind, winter

Questions

How many tornado events are on record for Siskiyou County?
NCEI has 1 tornado event on record for Siskiyou County from 1950 through 30 Jun 2026. No event has a rating of EF2 or F2, or a higher rating.
How large is the hail on record for Siskiyou County?
NCEI has 23 hail events on record from 1955 through 30 Jun 2026. 4 events have a hail size of 1.75 inches or more. NCEI names 1.75 inches a golf ball.
Which month has the most storm events on record for Siskiyou County?
July has 45 of the 151 storm events on record from 1950 through 30 Jun 2026.
How many NFIP claims are there for each 1,000 policies in force in Siskiyou County?
The county has 5.5 NFIP claims for each 1,000 policies in force. The rate uses 1 claim with a year of loss from 2016 to 2025. FEMA counts 181 residential policies in force on 3 Aug 2026. The claims have every type of building. FEMA counts residential policies only.