FEMA flood zones · Nebraska

Logan County, Nebraska Flood Zone Map

1 flood insurance claims·$0 paid·1 federal flood & hurricane disasters

Less than 1% of Logan 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 Logan County, Nebraska. 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.

In their words

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

Federal disasters

14 federal disaster declarations since 2001, 1 of them floods, coastal storms or hurricanes.

DisasterBegan
Severe Storms And Straight-line WindsMay 12, 2022
Severe Winter Storm, Straight-line Winds, And FloodingMar 9, 2019
Severe Storms, Tornadoes, Straight-line Winds, And FloodingJun 17, 2018
Severe Winter Storm And Straight-line WindsApr 13, 2018
Severe Storms, Tornadoes, Straight Line Winds, And FloodingJun 19, 2011
Severe Storms And FloodingJun 1, 2010
Severe Storms, Tornadoes, And FloodingMay 22, 2008
Severe Storms And FloodingMay 28, 2007

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

Recorded flood events

7 since 1996: 4 flash floods and 3 river or area floods.

EventDateDamage
FloodJul 10, 2021—
Flash FloodJun 8, 2020—
FloodMar 13, 2019$250,000
Flash FloodApr 14, 2012—
Flash FloodJun 19, 2011—
FloodJun 12, 2010$50,000

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

From the storm reports

Flood · Jul 10, 2021. Two rounds of severe thunderstorms swept across western and north central Nebraska spanning the evening and early overnight hours with recorded wind speeds in excess of 70 mph.

Flash Flood · Jun 8, 2020. A deep trough across the western U.S. caused strong low pressure to develop across the Central Plains. An associated cold front brought a round of strong to severe thunderstorms to the area.

Flood · Mar 13, 2019. Historical flooding occurred in north central Nebraska as rivers, creeks and other streams rose due to the combination of snow, rain, and rapid snow melt on top of frozen ground. The greatest flooding occurred along the Niobrara, Keya Paha, Elkhorn and Loup Rivers; Ponca, Long Pine, Victoria and Cedar creeks; and one fatality occurred from the failure of Spencer Dam that is located on the Niobrara River. In additi…

Flash Flood · Apr 14, 2012. A strong low pressure system produced widespread severe weather across the central plains on April 14th. Storms developed over central Nebraska in the late morning hours which produced large hail over portions of Garfield and Wheeler counties. Around the middle of the afternoon, more storms developed over southwest Nebraska in the vicinity of a dry line and warm front as a surface low was placed over Keith and P…

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 Logan County

If a building in Logan 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.