Enter any address in North Slope Borough, Alaska to see its FEMA flood zone
1 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
North Slope Borough, Alaska has recorded 1 flood-related events since 1996 according to NOAA's Storm Events Database. The county has received 8 federal disaster declarations, 2 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1986–2020)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Severe Storm | Severe Storm | Sep 28, 2017 |
| Severe Storm | Coastal Storm | Aug 27, 2015 |
| Severe Winter Storms And Flooding | Severe Storm | Nov 8, 2011 |
| Severe Storms, Flooding, Landslides, And Mudslides | Severe Storm | Jul 27, 2008 |
| Severe Winter Storm | Severe Storm | Jan 7, 2005 |
| Coastal Storm, High Winds & Waves | Flood | Sep 20, 1986 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flood | Dec 20, 2022 | 0.00K |
Flood — Dec 20, 2022
Heavy rainfall observed on December 20,2022 prompted a flood warning for Unalaska, a city along the Aleutian Chain, where 3-4 inches of rainfall led their Public Safety to issue a precautionary Cat 2 travel advisory (only drive when necessary; Cat 3 closes travel). About a 1 mile stretch of Ballyhoo Road was closed due to flooding and debris on the roadway. Manholes were displaced to allow fo...
Source: NOAA National Weather Service Storm Events Database.
Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).
FEMA assigns flood zone designations to areas in North Slope Borough, Alaska:
AE High Risk — 1% annual chance of flooding. Insurance required.
VE Very High Risk — Coastal flooding with wave action.
X (Shaded) Moderate Risk — 500-year floodplain.
X Low Risk — Outside major floodplains.
Properties in North Slope Borough, Alaska that are in FEMA-designated Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance.
Even outside high-risk zones, flood insurance is recommended. From 2014 to 2024, nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area.
Visit FloodSmart.gov to find an agent and get a quote.