Enter any address in Jasper County, Illinois to see its FEMA flood zone
Flash flooding from thunderstorms is the dominant flood character in Jasper County. Between 2013 and 2023, NOAA Storm Events data recorded 40 flash flood events and 9 general flood events. Recent occurrences include heavy rainfall exceeding 8 inches in August 2022, which led to flash flooding across the county, and a flash flood event in June 2018 caused by excessive rainfall on saturated soils.
National Flood Insurance Program (NFIP) claims data indicates that while Zone A and Zone X_UNSHADED have seen claims, Zone X_UNSHADED has experienced higher average payouts and water depths. Homeowners in areas identified as Zone A or Zone X_UNSHADED, particularly those without a confirmed Base Flood Elevation (BFE), should pay the most attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
17 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Jasper County, Illinois has recorded 49 flood-related events since 1996 according to NOAA's Storm Events Database, including 40 flash floods and 9 river or area floods. The county has received 9 federal disaster declarations. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1990–2020)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Storms, Straight-line Winds, And Tornadoes | Tornado | Nov 17, 2013 |
| Severe Winter Storm And Snowstorm | Snowstorm | Jan 31, 2011 |
| Severe Storms And Flooding | Severe Storm | Jun 1, 2008 |
| Hurricane Katrina Evacuation | Hurricane | Aug 29, 2005 |
| Severe Storms, Tornadoes And Flooding | Tornado | Apr 21, 2002 |
| Severe Storms And Flooding | Severe Storm | Apr 28, 1996 |
| Severe Storms, Tornadoes & Flooding | Severe Storm | May 15, 1990 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Aug 1, 2022 | 0.00K |
| Flash Flood | Jun 11, 2018 | 0.00K |
| Flash Flood | Sep 8, 2018 | 0.00K |
| Flood | Apr 29, 2017 | 0.00K |
| Flash Flood | Apr 29, 2017 | 0.00K |
| Flood | May 11, 2017 | 0.00K |
| Flash Flood | May 10, 2017 | 0.00K |
| Flood | May 4, 2017 | 0.00K |
| Flash Flood | May 4, 2017 | 0.00K |
| Flood | May 1, 2017 | 0.00K |
Flash Flood — Aug 1, 2022
An outflow boundary from convection earlier in the day served as the primary focusing mechanism for numerous storm clusters along and south of I-70 from the late afternoon of August 1st into the pre-dawn hours of August 2nd. Some of the storms dropped very large hail up to 2 inches in diameter. In addition, continuous back-building cells produced a swath of heavy rainfall in excess of 8 inch...
Flash Flood — Jun 11, 2018
A series of weak impulses interacted with a stationary frontal boundary extending from northeast Missouri to southwest Indiana to produce several rounds of thunderstorms across south-central Illinois from the evening of June 11th into the morning of June 12th. The strongest cells produced damaging wind gusts of around 60mph and hail as large as golf balls during the evening of June 11th. In a...
Flash Flood — Sep 8, 2018
Heavy rain impacted central and southeast Illinois as the remnants of Tropical Storm Gordon tracked from Arkansas during the afternoon of September 7th to southern Ohio by the afternoon of September 9th. The rainfall was further enhanced by a weak cold front dropping southward out of the Upper Midwest. Rainfall was heaviest south of I-70 in closer proximity to the track of the storm, with amo...
Flood — Apr 29, 2017
Heavy rainfall impacted central and southeast Illinois from April 29th into April 30th...creating flash flooding, which led to widespread areal flooding. Periods of thunderstorms with very high rainfall rates dropped 2.00 to 6.50 inches of rain across much of central and southeast Illinois from April 29th into early on May 1st. This rainfall, occurring on top of already saturated soils, created...
Flash Flood — Apr 29, 2017
Low pressure tracking along a stationary frontal boundary near the I-70 corridor brought widespread strong to severe thunderstorms to much of central and southeast Illinois during the late afternoon and evening of April 29th. A tornado briefly touched down in an open field northeast of Alexander in Morgan County. Elsewhere, thunderstorms packed winds of 60-70mph and caused significant wind da...
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 Jasper County, Illinois:
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 Jasper County, Illinois 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.