Enter any address in Tioga County, Pennsylvania to see its FEMA flood zone
Flash flooding from thunderstorms is the dominant flood character in Tioga County, PA, with 27 flash flood events and 22 flood events recorded by NOAA over the last 30 years. Recent examples include flooding on May 5, 2025, which caused the closure of State Route 249 in Deerfield Township due to heavy rainfall, and flash flooding on July 17, 2021, associated with scattered thunderstorms.
National Flood Insurance Program (NFIP) data indicates that properties in Zone A have experienced the highest number of claims, with an average payout of $20,594 and an average water depth of 4.6 feet. While properties in Zone X and X_UNSHADED have also seen claims, the average water depth and payout amounts are lower. Homeowners in Zone A, as well as those in areas with higher water depths and payouts, should pay particular attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
10 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Tioga County, Pennsylvania has recorded 50 flood-related events since 1996 according to NOAA's Storm Events Database, including 27 flash floods and 22 river or area floods. The county has received 20 federal disaster declarations, 7 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1972–2024)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Tropical Storm Debby | Tropical Storm | Aug 9, 2024 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Storms And Flooding | Severe Storm | Aug 10, 2018 |
| Hurricane Sandy | Hurricane | Oct 26, 2012 |
| Remnants Of Tropical Storm Lee | Flood | Sep 3, 2011 |
| Tropical Storm Lee | Flood | Sep 3, 2011 |
| Severe Storms And Flooding | Severe Storm | Apr 25, 2011 |
| Severe Storms, Flooding, And Mudslides | Severe Storm | Jun 23, 2006 |
| Hurricane Katrina | Hurricane | Aug 29, 2005 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flood | May 6, 2025 | 0.00K |
| Flood | May 5, 2025 | 0.00K |
| Flash Flood | Aug 27, 2021 | 0.00K |
| Flash Flood | Jul 18, 2021 | 0.00K |
| Flash Flood | Jul 17, 2021 | 0.00K |
| Flash Flood | Jul 13, 2021 | 0.00K |
| Flash Flood | Jul 12, 2021 | 300.00K |
| Flash Flood | Jul 9, 2021 | 0.00K |
| Flood | Jul 9, 2021 | 0.00K |
| Flood | Sep 17, 2018 | 0.00K |
Flood — May 6, 2025
Low pressure stationed across the Delmarva during the early morning hours of May 6, 2025 began to lift north and east during the afternoon hours, allowing portions of eastern Pennsylvania to have a brief period of residence time in the warm sector. This residence time allowed for destabilization ahead of a surface cold front, with ample shear in place to allow for a line of showers and thunders...
Flood — May 5, 2025
Low pressure stationed across western Pennsylvania with a stationary front stationed across the southern tier allowed for widespread rain across the northern tier throughout the day on May 5, 2025. Ample low-level moisture, with relatively high precipitable water values (ranging between 1.00 and 1.50 inches), and robust moisture transport from the south allowed for this heavy rainfall to cause ...
Flash Flood — Aug 27, 2021
Scattered storms developed in a warm, humid airmass to the south of a stalled frontal boundary over southern New York state during the late afternoon and early evening of August 27, 2021. A couple of these storms produced wind damage in the Lower Susquehanna Valley. Flash flooding was also reported in Tioga County near Mansfield.
Flash Flood — Jul 18, 2021
Scattered showers and thunderstorms develop during the early afternoon hours of July 17, 2021 across western Pennsylvania and in the Lower Susquehanna Valley in an anomalously humid airmass ahead of an approaching cold front. The storms over the Lower Susquehanna Valley developed on a weak boundary in a high CAPE environment, and produced sporadic wind damage before moving to the east. The stor...
Flash Flood — Jul 17, 2021
Scattered showers and thunderstorms develop during the early afternoon hours of July 17, 2021 across western Pennsylvania and in the Lower Susquehanna Valley in an anomalously humid airmass ahead of an approaching cold front. The storms over the Lower Susquehanna Valley developed on a weak boundary in a high CAPE environment, and produced sporadic wind damage before moving to the east. The stor...
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 Tioga 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 Tioga 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.