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Natural hazards in Mongaup Valley · FEMA

Mongaup Valley is calmer than 95% of U.S. communities

Most of the natural-hazard damage FEMA expects in Mongaup Valley comes from inland flooding, and overall the risk is very low for a U.S. community.

5Very low riskLowerHigherExpected storm and flood damage, vs. U.S. communities
Overall risk
Very low
higher than 5% of U.S. places
Main hazard
Inland flooding
62% of expected damage
Flood claims
0
none on record
Disasters paid out here
0
of 26 declared for Sullivan County

What stands out about Mongaup Valley’s weather risks

Read from FEMA’s records below. The page puts what stands out first.

★ What stands out · Expected damage

How exposed is Mongaup Valley?

FEMA expects yearly storm and flood damage to homes and buildings here to be higher than in 5% of U.S. communities, mostly from inland flooding.

Where Mongaup Valley sits
Mongaup Valley
Very lowLowModerateHighVery high

Calmer than 1,461 of the 1,524 New York towns we cover.

Mongaup Valley is smaller than a census tract, so it shares the figures of the tract around its center.

What drives the damage
Inland flooding62%Tornadoes9%Cold waves8%Hurricanes8%Earthquakes7%Everything else7%
Flood insurance claims

Does Mongaup Valley flood? No paid flood claims on record

FEMA’s records show no paid flood insurance claims in Mongaup Valley. That’s not a promise: most homes don’t carry flood insurance, so small floods go unrecorded.

of homes in flood zones are insured
of all homes are insured
No community discount

Mongaup 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: Sullivan County.
By hazard

What Mongaup Valley faces

Each hazard’s share of the damage FEMA expects here, and how it compares with the rest of the country.

Inland flooding

62%of expected damage
Well below average · higher than 13% of U.S. places
Recorded about 2 times a year in the area

Tornadoes

9%of expected damage
Below average · higher than 46% of U.S. places

Cold waves

8%of expected damage
Above average · higher than 50% of U.S. places
Recorded about 4 times a year in the area

Hurricanes

8%of expected damage
Above average · higher than 68% of U.S. places
Recorded about once every 25 years in the area

Earthquakes

7%of expected damage
Above average · higher than 52% of U.S. places
Lower here
🧊 Hail🧊 Ice storms❄️ Winter weather🌡️ Heat waves🔥 Wildfire⛰️ Landslides💨 Strong wind⚡ Lightning
Not a risk here
Coastal floodingDroughtAvalanchesTsunamisVolcanic activity
Flood risk changes street by street. Check a specific address on FEMA’s flood map, and ask about flood insurance before you buy.
Storms remembered

Federal disasters declared here

None of the disasters declared for Sullivan County shows FEMA aid or repair money reaching Mongaup Valley itself in FEMA’s records.

Disasters declared, by decade
Paid out in Mongaup ValleySullivan County only

Sullivan County has had 26 natural disasters declared since 1953, most often severe storms and hurricanes.

Be ready

Get ready for what Mongaup Valley actually faces

A short kit for its top hazards, what to check before you buy, and where neighbors get alerts.

When the river rises
  • 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.
More from Ready.gov ↗
Tornado warnings
  • 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.
More from Ready.gov ↗
Cold snaps
  • Let faucets drip so pipes don’t freeze.
  • Know where your water shutoff is.
  • Never heat the house with the oven or a grill.
More from Ready.gov ↗
Before you buy or rent
  • 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.
When a storm is coming
Forecast and alertsWeather →911, the nearest ERSafety →

Know where neighbors sign up for alerts? Add it to the Handbook so everyone has it.

Next door

Mongaup Valley and its neighbors

Mongaup Valley has the lowest rating of the 3 towns around it. Tap a town to see its hazards.

Very lowLowModerateHighVery high
TownRatingMostlyFlood claims
BethelVery lowinland flooding10
ThompsonVery lowinland flooding57
Mongaup ValleyVery lowinland flooding0

Rating = expected yearly storm and flood damage as a share of what’s there, vs. U.S. communities. Flood claims = paid federal flood insurance claims on record.

Storm season

Most disasters here begin in August–September

The month each of Sullivan County’s 26 declared disasters began, since 1953.

2J
1F
3M
1A
1M
2J
2J
6A
4S
1O
1N
2D
Severe stormsHurricanesWinter stormsFloodsFiresDroughts
How to read this page

What these numbers can and can’t tell you

  • An average, not a forecast. FEMA’s National Risk Index estimates the damage 18 kinds of natural hazards cause in a typical year, from decades of records and models. A quiet decade can follow a bad year.
  • Compared by rate. “Higher than N%” compares yearly damage as a share of what’s there, so a big city isn’t rated riskier just for having more buildings.
  • Money that reached town. Flood claims are matched to Mongaup Valley’s own flood-insurance community; household aid to the registrant’s city; repair grants to Mongaup Valley.
  • It follows property value. FEMA’s model weighs damage to buildings, so a place that recently lost many homes can rate lower than it feels.

Storm stories

Memories, warnings and help from neighbors in Mongaup Valley.

Town Square →
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Sources: FEMA National Risk Index (December 2025); 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. Census tracts: U.S. Census Bureau. Preparedness tips: Ready.gov. An average of past damage, not a forecast.

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