Hurricane Isaias October 2026
Hurricane Isaias made landfall in the Southeastern United States, prompting NASA to support federal response partners to assess flooding, power outages, and other storm impacts in the region.
Overview
In coordination with the FEMA Response Geospatial Office, FEMA Region 4, and other federal partners, the NASA Disasters Program worked with the American Red Cross, the Alabama Emergency Management Agency, and the National Weather Service Mobile, Charleston, and Columbia offices to support the U.S. response to the hurricane. The program shared satellite-based maps and data with partners, including flood assessment, power outage, and optical situational awareness products for impacted areas in the southeastern United States.
Event Data Gallery
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Black Marble Nighttime Blue/Yellow Composite
The Black Marble Nighttime Blue/Yellow Composite uses VIIRS nighttime observations to visualize artificial lights, fires, and clouds, supporting assessment of potential power outages and other disaster impacts.
Black Marble BRDF-Corrected Nighttime Lights
Daily VIIRS nighttime lights corrected for moonlight, atmosphere, and viewing geometry (BRDF), delivered with a cloud-free monthly pre-event composite and a daily cloud mask for assessing power outages and recovery after disasters.
Black Marble HD
HD Black Marble combines VIIRS nighttime lights with Landsat-derived land surface information and OpenStreetMap road networks to create enhanced 30-meter nighttime light imagery for disaster impact assessment.
HydroSAR Sentinel-1 Water Extent Classifications
HydroSAR Sentinel-1 Water Extent Classifications identify post-event open water and inundated developed, vegetated, and agricultural areas from synthetic aperture radar observations.
Landsat Color Infrared Imagery
Created using near-infrared, red, and green channels to highlight vegetation, water, burned areas, and other surface changes associated with natural hazards.
Landsat Modified Normalized Difference Water Index (MNDWI)
Modified Normalized Difference Water Index (MNDWI) uses green and shortwave-infrared reflectance to enhance open water features and suppress vegetation, soil, and built-up surfaces.
Landsat Normalized Difference Vegetation Index (NDVI)
Normalized Difference Vegetation Index (NDVI) uses near-infrared and red reflectance to indicate the presence and relative condition of green vegetation.
Landsat True Color Imagery
The Landsat True Color RGB composite provides a natural-looking view of the Earth's surface similar to how it would appear to the human eye.
Sentinel-2 Color Infrared Imagery
Created using near-infrared, red, and green channels to highlight vegetation, water, burned areas, and other surface changes associated with floods, fires, and other hazards.
Sentinel-2 True Color Imagery
A visible-light composite created from Sentinel-2 red, green, and blue observations to show the Earth's surface approximately as it would appear to the human eye from space.
Sentinel-2 Normalized Difference Vegetation Index (NDVI)
Normalized Difference Vegetation Index (NDVI) uses near-infrared and red reflectance to indicate the presence and relative condition of green vegetation.