1. Katrina is shown on the left, and Sandy on the right. Katrina was a textbook hurricane. Sandy started as a hurricane, but turned into an extra-tropical storm.
2. Tropical storm winds of 40 mph are shown in yellow, hurricane winds in red.
3. Katrina's winds greater than 40 mph stretched 300 miles across.
4. Sandy's winds over 40 mph stretched three times as wide, or 900 miles.
TAG: The size of the wind field is just one of the critical components that forecasters use to predict the storm surges during landfall.
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", "width": 1920, "height": 1080, "pixels": 2073600 } } ], "extra_data": {} }, { "id": 337028, "url": "https://svs.gsfc.nasa.gov/11979/#media_group_337028", "widget": "Basic text", "title": "For More Information", "caption": "", "description": "See the following sources:\n\n* [http://earthobservatory.nasa.gov/IOTD/view.php?id=79626](http://earthobservatory.nasa.gov/IOTD/view.php?id=79626)\n* [http://www.nhc.noaa.gov/data/tcr/AL182012_Sandy.pdf](http://www.nhc.noaa.gov/data/tcr/AL182012_Sandy.pdf)", "items": [], "extra_data": {} } ], "studio": "gms", "funding_sources": [ "PAO" ], "credits": [ { "role": "Producer", "people": [ { "name": "Howard Joe Witte", "employer": "ADNET Systems, Inc." } ] }, { "role": "Video editor", "people": [ { "name": "Sophia Roberts", "employer": "USRA" } ] } ], "missions": [], "series": [], "tapes": [], "papers": [], "datasets": [], "nasa_science_categories": [ "Earth" ], "keywords": [ "HDTV", "Hurricane Katrina", "Hurricane Sandy" ], "recommended_pages": [], "related": [], "sources": [], "products": [], "newer_versions": [], "older_versions": [], "alternate_versions": [] }