FEMA flood zones · Nevada

Pershing County, Nevada Flood Zone Map

4 flood insurance claims·$18,853 paid

1% of Pershing 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 Pershing County, Nevada. 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 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 4 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.

In their words

2 NOAA storm reports from Pershing County describe what happened, in the words of the forecasters who covered it. Read the Nevada flood stories →

Federal disasters

4 federal disaster declarations since 2005.

DisasterBegan
Hurricane Katrina EvacuationAug 29, 2005
SnowJan 6, 2005

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

Recorded flood events

5 since 1996: 1 flash floods and 4 river or area floods.

EventDateDamage
Flash FloodMay 25, 2018—
FloodMay 1, 2006$50,000
FloodJan 25, 1997—
FloodJan 1, 1997—
FloodDec 12, 1996$100,000

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

From the storm reports

Flash Flood · May 25, 2018. Another low pressure system moved slowly from the central California coast to western Nevada on the 24th and 25th. This system produced two periods of showers and thunderstorms where rainfall totals were maximized across much of eastern California from Alpine County northward to Lassen County and western Nevada from Douglas County northward to the Oregon border. The first period occurred during the late afternoon…

Flood · May 1, 2006. Areas along the Humboldt River in Pershing County experienced minor to moderate flooding during the entire month of May. Flooding occurred mainly in agricultural and lowland areas and affected pasture, cropland, irrigation structures, and rural roads. Above Rye Patch Reservoir the Tungsten Mine Road bridge near Mill City was closed due to flooding. Part of the lower campground below Rye Patch Dam was flooded, a…

Flood · Jan 25, 1997. The East Carson River and the mainstem Truckee in western Nevada rose above flood stage for a short period of time. Urban and small stream flooding occurred in parts of western Nevada as well. For a better description, please see storm entry for floods in Nevada zones from 1/01/97 to 1/17/97.

Flood · Jan 1, 1997. The floods of January l997 were caused by several factors. First, the Sierra and western Nevada had experienced two above normal precipitation years (1995, 1996). Second, a major winter storm December 21st and 22nd 1996 deposited heavy snow in the Sierra and western Nevada. Four to six feet of snow was common below 7000 feet in the Sierra with up to eight feet at the higher elevations. One to three feet of sno…

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 Pershing County

If a building in Pershing 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.