Enter any address in Clarion County, Pennsylvania to see its FEMA flood zone
Flash flooding from thunderstorms is the dominant flood character in Clarion County. Between 2020 and 2024, NOAA Storm Events data recorded 49 flash flood events and 21 general flood events. Recent examples include flash flooding on June 6, 2025, caused by training thunderstorms, and isolated flash flooding on April 11, 2024, due to heavy showers and thunderstorms.
National Flood Insurance Program (NFIP) claims data shows that properties in Zone A have experienced the most claims, with an average payout of $28,247 and an average water depth of 4.6 feet. Properties in Zone X also have a notable number of claims, averaging $11,210 in payouts. Homeowners in Zone A, and those near rivers or in areas with a history of flooding, should pay the most attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
33 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Clarion County, Pennsylvania has recorded 70 flood-related events since 1996 according to NOAA's Storm Events Database, including 49 flash floods and 21 river or area floods. The county has received 14 federal disaster declarations, 5 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1972–2020)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Hurricane Sandy | Hurricane | Oct 26, 2012 |
| Hurricane Katrina | Hurricane | Aug 29, 2005 |
| Tropical Depression Ivan | Hurricane | Sep 17, 2004 |
| Severe Storms And Flooding Associated With Tropical Depression Frances | Severe Storm | Sep 8, 2004 |
| Severe Storms, Tornadoes, And Flooding | Severe Storm | Jul 21, 2003 |
| Severe Storms, Flooding, And Tornadoes | Flood | Jul 19, 1996 |
| Severe Storms And Flooding | Flood | Jan 19, 1996 |
| Severe Snowfall & Winter Storm | Snowstorm | Mar 13, 1993 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Jun 17, 2025 | 2.00K |
| Flash Flood | Jun 9, 2025 | 5.00K |
| Flash Flood | Jun 6, 2025 | 5.00K |
| Flash Flood | Apr 11, 2024 | 1.00K |
| Flash Flood | Apr 3, 2024 | 1.00K |
| Flash Flood | Jul 26, 2023 | 0.00K |
| Flash Flood | Jul 26, 2023 | 25.00K |
| Flash Flood | Jul 1, 2023 | 100.00K |
| Flash Flood | Jul 1, 2023 | 0.00K |
| Flash Flood | Aug 28, 2021 | 50.00K |
Flash Flood — Jun 17, 2025
The stalled boundary began to lift north during the day on the 17th but remained the focus of diurnal convection. While the front did eventually shift off to the east on the 18th, additional storms were able to fire with the lingering moist airmass as an upper level disturbance approached.
Flash Flood — Jun 9, 2025
Showers and thunderstorms developed ahead of an approaching cold front on the 9th. A few training storms produced isolated flash flooding in Ohio and PA.
Flash Flood — Jun 6, 2025
Several rounds of thunderstorms trained over portions of Lawrence, Allegheny, Westmoreland Clarion and Beaver counties on June 6th. This was a result of a very moist airmass and a stationary boundary located over northern Ohio and northwestern Pennsylvania. Flash flooding was reported in the aforementioned counties with considerable flooding noted in Allegheny county.
Flash Flood — Apr 11, 2024
A strong mid-level trough and an associated frontal zone crossed through the|Mid-South and took aim on the OH Valley. Strong forcing associated the energy aloft coupled with a gradually destabilizing boundary layer out ahead it set the stage for areas of locally heavy showers and thunderstorms for several hours and prompted dangerous flash flooding. A flash flood emergency was issued for portio...
Flash Flood — Apr 3, 2024
Several rounds of showers and thunderstorms prompted a widespread flash flood problems across the Ohio River Valley on April 2nd to April 3rd. The synoptic pattern across the CONUS was a slow moving and deep elongated trough over the Great Plains phasing with a ejecting trough over the Midwest that created an area of converging moisture over eastern Ohio and western Pennsylvania. Overall, over ...
Source: NOAA National Weather Service Storm Events Database.
Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).
FEMA assigns flood zone designations to areas in Clarion County, Pennsylvania:
AE High Risk — 1% annual chance of flooding. Insurance required.
VE Very High Risk — Coastal flooding with wave action.
X (Shaded) Moderate Risk — 500-year floodplain.
X Low Risk — Outside major floodplains.
Properties in Clarion County, Pennsylvania that are in FEMA-designated Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance.
Even outside high-risk zones, flood insurance is recommended. From 2014 to 2024, nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area.
Visit FloodSmart.gov to find an agent and get a quote.