FEMA flood zones · Utah

Uintah County, Utah Flood Zone Map

14 flood insurance claims·$80,456 paid·4 federal flood & hurricane disasters

5% of Uintah County’s area is in FEMA’s high-risk flood zones.

Share of the whole county outline, rivers and lakes included; parts FEMA hasn’t mapped count as zero.

Coastal high risk (V, VE)FloodwayHigh risk (A, AE)Moderate (X, 500-year)Minimal (X)Undetermined (D)

Shaded areas are FEMA’s mapped flood hazard zones in and around Uintah County, Utah. 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.

How Uintah County floods

Flash flooding and general flooding from summer monsoonal thunderstorms and heavy rainfall dominate the flood profile here. According to NOAA Storm Events Database records from the last 30 years, the county experienced 11 flash flood events and 10 flood events. Recorded historical incidents include heavy rainfall from a stalled cold front in September 2016 that caused flooding in Ballard, Lapoint, Tridell, and Vernal, as well as storms producing heavy rain and debris flows on the Pack Creek Fire burn scar in August 2021.

Federal Emergency Management Agency National Flood Insurance Program records show claims across multiple zones with varying water depths and payouts. Zone UNKNOWN recorded 5 claims with an average water depth of 4 inches and an average payout of $14,398. Zone X recorded 4 claims with an average water depth of 6 inches and an average payout of $3,534. Zone A logged 3 claims with an average water depth of 3 inches and an average payout of $4,739, while Zone X_UNSHADED recorded 2 claims averaging 1 inch of water depth and a $2,785 average payout.

Homeowners and real estate professionals should pay the closest attention to properties located in unmapped or unknown zones, as well as areas prone to rapid rainfall runoff, burn scar debris flows, and unshaded low-risk zones where historical claims have still occurred.

Summary written from NOAA storm reports and NFIP claims for this county. Not a prediction.

How deep the water got

outlet80″ door12″24″36″48″60″72″84″

In flood insurance claims here that reported a flood depth, the average was 3 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.

Flood claims, year by year

The worst year was 1984, with 4 claims and $57,591 paid.

1983: 1 claims1984: 4 claims1997: 1 claims1998: 1 claims2002: 1 claims2005: 1 claims2008: 2 claims2011: 1 claims2014: 1 claims2019: 1 claims1980199020002010

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.

In their words

5 NOAA storm reports from Uintah County describe what happened, in the words of the forecasters who covered it. Read the Utah flood stories →

Federal disasters

8 federal disaster declarations since 1977, 4 of them floods, coastal storms or hurricanes.

DisasterBegan
FloodingApr 18, 2011
Neola North FireJun 30, 2007
Hurricane Katrina EvacuationAug 29, 2005
Flooding And LandslidesApr 28, 2005
Severe Storms, Landslides & FloodingApr 13, 1983
DroughtJan 20, 1977

Weather and water disasters only; most recent first. Source: OpenFEMA Disaster Declarations.

Recorded flood events

21 since 1996: 11 flash floods and 10 river or area floods.

EventDateDamage
FloodAug 1, 2021$50,000
FloodSep 22, 2016$50,000
Flash FloodAug 20, 2014$20,000
Flash FloodAug 19, 2014$20,000
Flash FloodSep 17, 2013—
FloodJun 1, 2011$50,000
FloodJul 1, 2011$50,000
Flash FloodAug 6, 2009$12,000

— = no damage estimate in the record. Source: NOAA Storm Events Database.

From the storm reports

Flood · Aug 1, 2021. Abundant monsoon moisture remained in place across eastern Utah. This, paired with increased instability, resulted in another round of showers and thunderstorms with the stronger storms producing heavy rain. Flooding and debris flows occurred with several storms including on the Pack Creek Fire burn scar.

Flood · Sep 22, 2016. A cold front with strong upper level jet support stalled over eastern Utah and resulted in heavy rainfall across most of Uintah County. Flooding occurred in Ballard, Lapoint, Tridell, and Vernal.

Flash Flood · Aug 20, 2014. Saturated soil conditions from the previous day of flooding and heavy rain left conditions favorable for rapid rainfall runoff in the Uintah Basin. Thunderstorms in the afternoon of August 20th, again contained heavy rainfall rates in excess of an inch and caused flash flooding in the town of Maeser.

Flash Flood · Aug 19, 2014. Monsoonal moisture focused on eastern Utah resulted in heavy rainfall at a rate of one inch per hour which caused flooding and debris flows in some areas.

National Weather Service narratives, lightly trimmed. Source: NOAA Storm Events Database.

The zones you’ll see on the map

Every colour on the map above is a place on this drawing: where the ground sits relative to the flood FEMA plans for.

Cross-section of a river floodplainDiagram: a river valley. The floodway is the channel and the land beside it; the 1%-annual-chance flood surface (the base flood elevation) covers the valley floor as zone A or AE; a narrow band higher up is shaded X, the 0.2% floodplain; higher ground is X.0.2% CHANCE A YEAR (500-YEAR)BASE FLOOD ELEVATION · 1% A YEARXAEFloodwayAEX
  1. A / AE Inside the 1%-a-year floodplain: about a 26% chance of flooding over a 30-year mortgage. AE has a mapped base flood elevation; plain A does not.
  2. Floodway The channel and the land beside it that has to be kept clear enough to carry the flood. Building here is tightly limited.
  3. X shaded The 0.2% (500-year) floodplain, plus some levee-protected and very shallow flood areas.
  4. X Outside both lines. No federal requirement to insure, which is not the same as no risk.

Every flood zone code explained →

Flood insurance in Uintah County

If a building in Uintah 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.