Massive Winter Storm Sweeps Across the U.S. – NPR

February 2, 2026 Dr. Michael Lee – Health Editor Health

Here’s a breakdown of the image information provided in the HTML snippet:

Core Image URL:

* http://npr-brightspot.s3.amazonaws.com/5e/c8/218cb2dc4ae2b512ec4692bf8eec/ap26023539602023.jpg

Image Dimensions & Cropping:

* Original Dimensions (before cropping): 3500×2333 pixels
* Crop: The image is cropped from the top-left corner (0,0).
* Aspect Ratio: The original aspect ratio is approximately 1.5:1 (3500/2333).

Available sizes (responsive Images):

The code provides multiple versions of the image optimized for diffrent screen sizes adn resolutions. Here’s a list of the available widths:

* 400w
* 800w
* 1000w
* 1300w
* 1600w
* 2000w
* 2600w

Image Formats:

* Preferred Format: WebP (type="image/webp") – This is a modern image format that generally provides better compression and quality than JPEG.
* Fallback Format: JPEG – The <source srcset> provides JPEG versions as a fallback for browsers that don’t support WebP.

Responsive Behavior:

The sizes attribute defines how the browser should choose which image size to download based on the viewport width:

* (min-width: 1300px): Use 1238px wide image.
* (min-width: 1025px): use an image that fills 100% of the viewport width minus 60px.
* (min-width: 768px): Use an image that fills 100% of the viewport width minus 60px.
* calc(100vw - 30px): For screens smaller than 768px, use an image that fills 100% of the viewport width minus 30px.

In summary: This code snippet implements a responsive image solution, serving different image sizes based on the user’s device and screen size, and prioritizing the WebP format for better performance and quality where supported.