6 flood insurance claims·$41,884 paid·2 federal flood & hurricane disasters
Share of the whole county outline, rivers and lakes included; parts FEMA hasn’t mapped count as zero.
Shaded areas are FEMA’s mapped flood hazard zones in and around Alexander County, North Carolina. Zoomed out they are simplified; at street level the map switches to FEMA’s exact layer. Tap anywhere to check that spot, or search an address above.
Flash flooding from severe storms and tropical systems dominates the flood risk in Alexander County, NC. Over the last 30 years, NOAA records show 14 flash flood events resulting in 6 deaths, alongside 3 standard flood events and 2 tropical storms.
Recent events illustrate this recurring hazard. On July 15, 2023, heavy rainfall totaling 4 to 6 inches in a few hours produced significant flash flooding across western Alexander County, resulting in one fatality. Later, on September 27, 2024, moisture from Tropical Cyclone Helene interacted with a slow-moving cold front to produce widespread heavy rain and flash flooding. A separate major frontal system brought 3 to 5 inches of rain on January 9, 2024, causing numerous flooding reports.
NFIP claims data reflects risk across different designations. Zone A properties recorded 3 claims with an average payout of $2,455 and an average recorded water depth of 0 inches. Zone X properties also recorded 3 claims, but with a higher average payout of $18,487 and an average recorded water depth of 1 inch. Homeowners and real estate agents in both high-risk Special Flood Hazard Areas and moderate-to-low risk Zone X should pay close attention to historical payout and depth data when evaluating property risk.
Summary written from NOAA storm reports and NFIP claims for this county. Not a prediction.
In flood insurance claims here that reported a flood depth, the average was 1 inches.
Drawn to scale against an 80-inch door. Even a few inches soaks flooring, the bottom of the drywall and anything plugged in near the floor.
Average of the depths reported on claims (zero and implausible values left out); FEMA’s record doesn’t say exactly where each depth was measured. Source: OpenFEMA NFIP claims.
The worst year was 2013, with 2 claims and $3,618 paid, the year of Severe Storms, Flooding, Landslides, and Mudslides.
Bar height is scaled by square root so ordinary years stay visible next to the worst one. NFIP claims by year of loss. Source: OpenFEMA.
9 NOAA storm reports from Alexander County describe what happened, in the words of the forecasters who covered it. Read the North Carolina flood stories →
19 federal disaster declarations since 1977, 2 of them floods, coastal storms or hurricanes.
| Disaster | Began |
|---|---|
| Severe Winter Storm | Jan 21, 2026 |
| Hurricane Helene | Sep 25, 2024 |
| Tropical Storm Helene | Sep 25, 2024 |
| Hurricane Ian | Sep 28, 2022 |
| Tropical Storm Eta | Nov 12, 2020 |
| Hurricane Isaias | Jul 31, 2020 |
| Severe Storms, Tornadoes, And Flooding | Feb 6, 2020 |
| Hurricane Dorian | Sep 1, 2019 |
Weather and water disasters only; most recent first. Source: OpenFEMA Disaster Declarations.
19 since 1996: 14 flash floods and 3 river or area floods.
| Event | Date | Damage |
|---|---|---|
| Flash Flood | Sep 27, 2024 | $500 |
| Tropical Storm | Sep 27, 2024 | $500,000 |
| Flash Flood | Jan 9, 2024 | $1,000 |
| Flash Flood | Jul 15, 2023 | $10,000 · 1 killed |
| Flood | Nov 12, 2020 | $100,000 · 1 killed |
| Flash Flood | Nov 12, 2020 | $350,000 · 5 killed |
| Flash Flood | Feb 6, 2020 | $2,000 |
| Flood | Jun 9, 2019 | $1,000 |
— = no damage estimate in the record. Source: NOAA Storm Events Database.
Flash Flood · Sep 27, 2024. Tropical Cyclone Helene began organizing over the western Caribbean on the 23rd and 24th of September before rapidly intensifying as it moved north through the eastern Gulf of Mexico on the 25th and 26th. A plume of moisture extending from the intensifying storm interacted with a slow-moving cold front to produce a band of widespread heavy rain showers and embedded scattered thunderstorms over the southern Appalac…
Tropical Storm · Sep 27, 2024. Tropical Cyclone Helene began organizing over the western Caribbean on the 23rd and 24th of September before rapidly intensifying as it moved north through the eastern Gulf of Mexico on the 25th and 26th. A plume of moisture extending from the intensifying storm interacted with a slow-moving cold front to produce a band of widespread heavy rain showers and embedded scattered thunderstorms over the southern Appalac…
Flash Flood · Jan 9, 2024. A major/complex frontal system brought widespread rain with embedded thunderstorms to western North Carolina, mainly during the afternoon of the 9th. Widespread rainfall amounts of 3 to 5 inches (with locally higher amounts) in around 12 hours resulted in numerous reports of flooding. Isolated severe thunderstorms also resulted in a number of damaging wind gusts reports over the Piedmont, along with an EF1 tornado…
Flash Flood · Jul 15, 2023. Widespread showers and thunderstorms developed in the vicinity of a trough over the North Carolina foothills throughout the 15th. While rainfall was primarily in the 2 to 3 inch range, isolated areas of 4 to 6 inches fell in just a few hours across the northern foothills. This resulted in localized, but significant flash flooding across western Alexander County, where one fatality occurred.
National Weather Service narratives, lightly trimmed. Source: NOAA Storm Events Database.
Every colour on the map above is a place on this drawing: where the ground sits relative to the flood FEMA plans for.
If a building in Alexander County is in a high-risk zone (A or V) and its mortgage comes from a federally regulated or insured lender, or is federally backed, flood insurance is required.
Outside those zones it is optional, and often worth having: from 2014 to 2024 nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area. Since Risk Rating 2.0, NFIP premiums are set for each building, so the only reliable price is a quote: FloodSmart.gov or a local agent.