Grayson Valley’s building-damage rate from tornadoes is in the top 4% of U.S. census tracts
On FEMA’s National Risk Index, Grayson Valley gets a B for hazard risk: lower expected damage per building than 58% of U.S. towns, #20 of 187 in Alabama. Most of that expected damage is river and rain flooding (72%), then tornadoes (20%). FEMA’s files show no paid flood insurance claims here.
Graded on FEMA’s expected yearly building damage per dollar of building value (NRI v1.20, December 2025), weighted by where residents live; flood claims are shown, not graded. How hazard risk is graded
What Grayson Valley faces
Each hazard’s share of the building damage FEMA expects here, and how its rate compares with the rest of the country.
River and rain flooding
Tornadoes
Shares are of FEMA’s expected building damage, the measure the grade uses; ranks compare each hazard’s building-damage rate with all 85,154 U.S. census tracts. In FEMA’s terms, river and rain flooding is FEMA’s “Inland Flooding” (rivers and streams overflowing their banks, or rain overwhelming drainage). FEMA defines coastal flooding as high or rising tides and storm surge, so surge damage is counted there. Drought isn’t listed: FEMA counts its losses in crops only.
What’s behind Grayson Valley’s grade
River and rain flooding is 72% of the building damage FEMA expects in Grayson Valley, and Grayson Valley’s rate of river and rain flooding damage is higher than 53% of U.S. census tracts. Tornadoes add 20%, at a rate in the top 4% of U.S. census tracts.
B #20 of 187 in Alabama; lower expected damage per building than 58% of U.S. towns (21,298).
Grayson Valley’s residents live in 3 census tracts; FEMA’s figures are combined by where they live.
The typical Alabama town has higher expected damage than 66% of U.S. towns; within the state, Grayson Valley has less expected damage per building than 90% of Alabama towns.
In dollars, FEMA expects about $1.5M a year in losses across Grayson Valley: $868K to buildings, the rest to people and crops.
Does Grayson Valley flood? No paid flood claims on record
FEMA’s records show no paid flood insurance claims in Grayson Valley. That’s not a promise: most homes don’t carry flood insurance, so small floods go unrecorded.
Grayson Valley isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Jefferson County.The storms Grayson Valley remembers
None of the 35 disasters declared for Jefferson County shows FEMA aid or repair money reaching Grayson Valley itself in FEMA’s records, so these are its biggest flood-claim years.
Jefferson County has had 35 natural disasters declared by the President since 1953, most often severe storms, then hurricanes and tropical storms.
Also 1 FEMA wildfire suppression grant (Fire Management Assistance, not a disaster declaration) for fires in Jefferson County, 2000–2000.
Grayson Valley and its neighbors
Grayson Valley is 2nd of the 4 graded towns here, from least expected damage per building to most. Tap a town to see its hazards.
| Town | Hazard risk | Mostly (buildings) | Flood claims |
|---|---|---|---|
| Center Point | B+less damage than 68% | river and rain flooding | 4 |
| Grayson Valley | Bless damage than 58% | river and rain flooding | 0 |
| Clay | B−less damage than 52% | river and rain flooding | 1 |
| Trussville | C+more damage than 61% | river and rain flooding | 18 |
Hazard risk = FEMA’s expected yearly building damage per dollar of building value, vs. the 21,298 U.S. towns we grade; the map is shaded by fifths of the same scale. Flood claims = paid federal flood insurance claims on record.
Get ready for what Grayson Valley faces
A short kit for the hazards that drive the building damage here, what to check before you buy, and where neighbors get alerts.
- Turn around at flooded roads: a foot of moving water can carry off a car.
- Flood insurance usually takes 30 days to start, so buy it before the forecast.
- Keep papers and medicines up high, in a grab-and-go bag.
- Pick your spot now: the lowest floor, an inside room, no windows.
- A watch means be ready; a warning means take cover now.
- Keep shoes and a flashlight by the bed.
- Look up the address on FEMA’s flood map.
- Ask the seller or landlord whether it has ever flooded, and what flood insurance costs there.
- Get a flood insurance quote early: policies usually start 30 days after you buy.
Know where neighbors sign up for alerts? Add it to the Handbook so everyone has it.
Questions about natural hazards in Grayson Valley
Is Grayson Valley at risk for natural disasters?
On FEMA’s National Risk Index, Grayson Valley has lower expected damage per building than 58% of U.S. towns: B for hazard risk, #20 of 187 in Alabama. Most of the expected damage is river and rain flooding (72%) and tornadoes (20%). This is FEMA’s model of an average year for today’s buildings, not a forecast.
Is Grayson Valley in a flood zone?
Flood zones are drawn street by street, so the answer depends on the address: look it up on FEMA’s flood map. In Jefferson County, 13% of homes in mapped flood zones carry federal flood insurance, and 0.5% of all homes do.
How much is flood insurance in Grayson Valley?
FEMA’s Community Rating System list shows no discount for Grayson Valley’s flood program. Premiums depend on the building; policies usually start 30 days after you buy, so get a quote early.
Is Grayson Valley at risk from river and rain flooding?
It is the largest share of the building damage FEMA expects here (72%), and Grayson Valley’s rate for it is higher than 53% of U.S. census tracts.
Storm stories
Memories, warnings and help from neighbors in Grayson Valley.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Grayson Valley’s residents lived in the 2020 census; OpenFEMA: NFIP redacted claims, multiple-loss properties, community status book and residential penetration rates, housing assistance (owners and renters), public assistance funded projects, hazard mitigation properties and disaster declarations. Homes: Census ACS 2020–24. Preparedness tips: Ready.gov. FEMA’s model is an average of expected damage, not a forecast. How hazard risk is graded.