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This is a subset of the total Sentinel-2 Copernicus collection for the Midwest Tornadoes in March 2025. Other subsets from various affected National Weather Service (NWS) Weather Forecast Offices (WFOs) can be found at the following links. The WFO map can be found here as the "County Warning Area" (1) layer:
<\/p>

https://mapservices.weather.noaa.gov/static/rest/services/nws_reference_maps/nws_reference_map/FeatureServer<\/a><\/p>

BMX (Birmingham, AL): https://maps.disasters.nasa.gov/arcgis/home/item.html?id=3d895ae6b5194e908fa984099fea6efa<\/a><\/p>

HUN (Huntsville, AL): https://maps.disasters.nasa.gov/arcgis/home/item.html?id=9c419480fe8641bc8c0d7ce8003368a2<\/a><\/p>

JAN (Jackson, MS): https://maps.disasters.nasa.gov/arcgis/apps/MinimalGallery/index.html?appid=c8eb6f48b57f4b57a1b9eb9105c42d4a<\/a><\/p>

LZK (Little Rock, AR): https://maps.disasters.nasa.gov/arcgis/home/item.html?id=4585c20f5d6b4f06868fb069142c0db9<\/a>

MEG (Memphis, TN): https://maps.disasters.nasa.gov/arcgis/home/item.html?id=9215da2d95ca4e0eab9d59c8559fdf92<\/a>

MOB (Mobile, AL): https://maps.disasters.nasa.gov/arcgis/home/item.html?id=46a68198ab83470c9e07f3202468274f<\/a>

OHX (Nashville, TN): https://maps.disasters.nasa.gov/arcgis/home/item.html?id=6ae5b2dac8a74715994e823b40373680<\/a><\/p>

PAH (Paducah, KY): https://maps.disasters.nasa.gov/arcgis/home/item.html?id=8f5558194f0a45e8b6d33769589a0e54<\/a><\/p>

Dates of Images:<\/span><\/p>

Post-Event: <\/span>March 17, 2025<\/span><\/p>

Pre-Event: <\/span>March 12, 2025<\/span><\/p>

Date of Next Image:<\/span><\/p>

Unknown<\/span><\/p>

Summary<\/span>:<\/span><\/p>

The True Color RGB composite provides a product of how the surface would look to the naked eye from space. The RGB is created using the red, green, and blue channels of the respective instrument.<\/span><\/p>

The dynamically generated Normalized Difference Vegetation Index (NDVI) layer is an index for quantifying green vegetation. It reflects the state of vegetation health based on how vegetation reflects light at certain wavelengths.<\/span><\/p>

Suggested Use:<\/span><\/p>

The True Color RGB provides a product of how the surface would look to the naked eye from space. The True Color RGB is produced using the 3 visible wavelength bands (red, green, and blue) from the respective sensor. Some minor atmospheric corrections have occurred.<\/span><\/p>

For NDVI, dark green colors are areas with a lot of green leaf growth which indicates the presence of chlorophyll. Chlorophyll reflects more infrared light and less visible light. Areas with some green leaf growth are in light greens, and areas with little to no vegetation growth are even lighter greens.<\/span><\/p>

Satellite/Sensor:<\/span><\/p>

MultiSpectral Instrument (MSI) on European Space Agency's (ESA) Copernicus Sentinel-2A/2B satellites<\/span><\/p>

Resolution:<\/span><\/p>

10 meters<\/span><\/p>

Credits:<\/span><\/p>

NASA/MSFC, USGS, ESA Copernicus<\/span><\/p>

Esri REST Endpoint:<\/span><\/p>

See URL section on right side of page<\/span><\/p>

WMS Endpoint:<\/span><\/p>

https://maps.disasters.nasa.gov/ags03/services/midwest_tornadoes_202503/sentinel2_meg/MapServer/WMSServer<\/a><\/p>

Data Download:<\/span><\/p>

https://maps.disasters.nasa.gov/download/gis_products/event_specific/2025/midwest_tornadoes_202503/sentinel-2/<\/a><\/p><\/div>", "mapName": "sentinel2_meg", "description": "This is a subset of the total Sentinel-2 Copernicus collection for the Midwest Tornadoes in March 2025. Other subsets from various affected National Weather Service (NWS) Weather Forecast Offices (WFOs) can be found at the following links. The WFO map can be found here as the "County Warning Area" (1) layer:https://mapservices.weather.noaa.gov/static/rest/services/nws_reference_maps/nws_reference_map/FeatureServerBMX (Birmingham, AL): https://maps.disasters.nasa.gov/arcgis/home/item.html?id=3d895ae6b5194e908fa984099fea6efaHUN (Huntsville, AL): https://maps.disasters.nasa.gov/arcgis/home/item.html?id=9c419480fe8641bc8c0d7ce8003368a2JAN (Jackson, MS): https://maps.disasters.nasa.gov/arcgis/apps/MinimalGallery/index.html?appid=c8eb6f48b57f4b57a1b9eb9105c42d4aLZK (Little Rock, AR): https://maps.disasters.nasa.gov/arcgis/home/item.html?id=4585c20f5d6b4f06868fb069142c0db9MEG (Memphis, TN): https://maps.disasters.nasa.gov/arcgis/home/item.html?id=9215da2d95ca4e0eab9d59c8559fdf92MOB (Mobile, AL): https://maps.disasters.nasa.gov/arcgis/home/item.html?id=46a68198ab83470c9e07f3202468274fOHX (Nashville, TN): https://maps.disasters.nasa.gov/arcgis/home/item.html?id=6ae5b2dac8a74715994e823b40373680PAH (Paducah, KY): https://maps.disasters.nasa.gov/arcgis/home/item.html?id=8f5558194f0a45e8b6d33769589a0e54Dates of Images:Post-Event: March 17, 2025Pre-Event: March 12, 2025Date of Next Image:UnknownSummary:The True Color RGB composite provides a product of how the surface would look to the naked eye from space. The RGB is created using the red, green, and blue channels of the respective instrument.The dynamically generated Normalized Difference Vegetation Index (NDVI) layer is an index for quantifying green vegetation. It reflects the state of vegetation health based on how vegetation reflects light at certain wavelengths.Suggested Use:The True Color RGB provides a product of how the surface would look to the naked eye from space. The True Color RGB is produced using the 3 visible wavelength bands (red, green, and blue) from the respective sensor. Some minor atmospheric corrections have occurred.For NDVI, dark green colors are areas with a lot of green leaf growth which indicates the presence of chlorophyll. Chlorophyll reflects more infrared light and less visible light. 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The RGB is created using the red, green, and blue channels of the respective instrument.The Experimental Binary NDVI change product is highlighting areas that experienced change (of any kind) since the pre-event Copernicus Sentinel-2 pass used in the analysis. The product is further filtered to reduce noise and focus the identification on the more pronounced areas of change in an effort to identify areas that may have experienced damage during Hurricane Helene's passage and associated water and wind impacts.Suggested Use:The True Color RGB provides a product of how the surface would look to the naked eye from space. The True Color RGB is produced using the 3 visible wavelength bands (red, green, and blue) from the respective sensor. Some minor atmospheric corrections have occurred.This binary mask layer is designed to overlaid with post event imagery (pre if it is available as well). 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