Enter any address in Tolland County, Connecticut to see its FEMA flood zone
Flash flooding events, including those associated with tropical storms, have been the most frequent types of flooding recorded in Tolland County over the past 30 years, with 15 flood events and 7 flash flood events documented. For instance, widespread flash flooding occurred in early July 2023, leading to cars becoming stuck in water and flooded basements. Additionally, Tropical Storm Henri brought flash flooding to northeast Connecticut in August 2021.
National Flood Insurance Program (NFIP) data indicates that properties in Zone A and Zone X_SHADED have experienced the most significant payouts and water depths. Zone A properties saw average payouts of $13,711 with an average water depth of 3.3 feet, while Zone X_SHADED properties had much higher average payouts of $30,452 with an average water depth of 24.9 feet. Properties in Zone X_UNSHADED also experienced substantial claims, averaging $11,160 with an average water depth of 11.2 feet.
Homeowners in areas designated as Zone A, Zone X, Zone X_UNSHADED, and Zone X_SHADED should pay particular attention to flood risk. These zones have historically seen a higher number of claims and greater financial losses due to flooding.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
19 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Tolland County, Connecticut has recorded 26 flood-related events since 1996 according to NOAA's Storm Events Database, including 7 flash floods and 15 river or area floods. The county has received 28 federal disaster declarations, 2 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1978–2021)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Hurricane Henri | Hurricane | Aug 21, 2021 |
| Tropical Storm Isaias | Hurricane | Aug 4, 2020 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Winter Storm And Snowstorm | Severe Storm | Jan 26, 2015 |
| Severe Winter Storm | Severe Storm | Feb 8, 2013 |
| Severe Winter Storm And Snowstorm | Severe Storm | Feb 8, 2013 |
| Hurricane Sandy | Hurricane | Oct 27, 2012 |
| Severe Storm | Severe Storm | Oct 29, 2011 |
| Tropical Storm Irene | Hurricane | Aug 27, 2011 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Jul 4, 2023 | 0.00K |
| Flash Flood | Aug 22, 2021 | 30.00K |
| Flash Flood | Aug 22, 2021 | 60.00K |
| Tropical Storm | Aug 22, 2021 | 2.00K |
| Flood | Jul 17, 2021 | 0.00K |
| Flood | Jul 9, 2021 | 0.00K |
| Flash Flood | Jul 9, 2021 | 0.00K |
| Tropical Storm | Jul 9, 2021 | 1.50K |
| Tropical Storm | Aug 4, 2020 | 1.27M |
| Flood | Sep 25, 2018 | 0.00K |
Flash Flood — Jul 4, 2023
A mid level trough and a quasi-stationary boundary across Southern New England led to widespread flash flooding in the late hours of the 3rd into the 4th. Most of the flooding was in Rhode Island and Connecticut where cars became stuck in water, and several basements were flooded. In MA a few roads were closed.
Flash Flood — Aug 22, 2021
Tropical Storm Henri made landfall in southwest Rhode Island around noon on August 22nd, then moved slowly northwestward and westward across northern Connecticut and weakened. Henri brought strong wind gusts and flash flooding. The strongest gusts -- to 70 mph -- occurred along the Rhode Island coast. The worst flash flooding occurred in northeast Connecticut.||As the remnants of Henri moved ea...
Tropical Storm — Aug 22, 2021
Tropical Storm Henri made landfall in southwest Rhode Island around noon on August 22nd, then moved slowly northwestward and westward across northern Connecticut and weakened. Henri brought strong wind gusts and flash flooding. The strongest gusts -- to 70 mph -- occurred along the Rhode Island coast. The worst flash flooding occurred in northeast Connecticut.||As the remnants of Henri moved ea...
Flood — Jul 17, 2021
A relatively stationary front meandered across southern New England on the 17th and 18th while low pressure slowly moved along the front. At upper levels, an upper low was moving slowly eastward from the Great Lakes. With very moisture-laden air in place across the region, the result was heavy rain and flash flooding. In addition, there were rounds of severe thunderstorms and even a weak torn...
Flood — Jul 9, 2021
Tropical Storm Elsa made landfall in Rhode Island on Friday morning before moving into the Gulf of Maine. It interacted with a stalled frontal boundary and brought widespread heavy rainfall of 2 to 3.5 inches and gusty winds along the south coast, which caused scattered tree damage.
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 Tolland County, Connecticut:
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 Tolland County, Connecticut 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.