{
    "id": 5593,
    "url": "https://svs.gsfc.nasa.gov/5593/",
    "page_type": "Visualization",
    "title": "Tracking Weather Extremes: May 2025 Tornadoes and Flooding Across the Continental United States",
    "description": "Created with NASA's GEOS-FP 2km replay model, this visualization tracks May 2025's severe weather across the continental US. The visualization maps tornado paths and 24-hour precipitation data, revealing how tornadic activity and heavy rainfall combined to create compound disasters affecting communities from the Great Plains to the Southeast.",
    "release_date": "2025-12-29T13:00:00-05:00",
    "update_date": "2025-12-29T12:15:13.379632-05:00",
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        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a005500/a005593/USTornadoes_May2025_1920x1080.png",
        "filename": "USTornadoes_May2025_1920x1080.png",
        "media_type": "Image",
        "alt_text": "This visualization shows a map of the continental United States with tornado tracks and color-coded precipitation levels during May 2025. Multiple tornado paths are visible across the central and eastern states, with concentrated activity in the Midwest and Southeast. Areas of heavy precipitation (shown in purple/red/yellow hues) overlap with many tornado-affected regions, illustrating the compound severe weather events that occurred that month.",
        "width": 1920,
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        "pixels": 2073600
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    "main_video": {
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        "media_type": "Movie",
        "alt_text": "This visualization shows a map of the continental United States with tornado tracks and color-coded precipitation levels during May 2025. Multiple tornado paths are visible across the central and eastern states, with concentrated activity in the Midwest and Southeast. Areas of heavy precipitation (shown in purple/red/yellow hues) overlap with many tornado-affected regions, illustrating the compound severe weather events that occurred that month.",
        "width": 1920,
        "height": 1080,
        "pixels": 2073600
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    "main_credits": {
        "Visualizations by": [
            {
                "name": "Joseph V. Ardizzone",
                "employer": "NASA/GSFC"
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    "progress": "Complete",
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            "id": 379324,
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            "caption": "Tornado tracks and 24-hour accumulated precipitation across the continental United States during May 2025, showing the compound impacts of severe weather that produced multiple deadly outbreaks and widespread flooding. This visualization is created using NASA's GEOS-FP 2km replay model.",
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                        "media_type": "Movie",
                        "alt_text": "This visualization shows a map of the continental United States with tornado tracks and color-coded precipitation levels during May 2025. Multiple tornado paths are visible across the central and eastern states, with concentrated activity in the Midwest and Southeast. Areas of heavy precipitation (shown in purple/red/yellow hues) overlap with many tornado-affected regions, illustrating the compound severe weather events that occurred that month.",
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                        "url": "https://svs.gsfc.nasa.gov/vis/a000000/a005500/a005593/us_tornadoes_sw-2025-002.nasa.gmao.geos-fp.conus_2km_replay.202505.2160p.mp4",
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                        "media_type": "Movie",
                        "alt_text": "This visualization shows a map of the continental United States with tornado tracks and color-coded precipitation levels during May 2025. Multiple tornado paths are visible across the central and eastern states, with concentrated activity in the Midwest and Southeast. Areas of heavy precipitation (shown in purple/red/yellow hues) overlap with many tornado-affected regions, illustrating the compound severe weather events that occurred that month.",
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                        "alt_text": "This visualization shows a map of the continental United States with tornado tracks and color-coded precipitation levels during May 2025. Multiple tornado paths are visible across the central and eastern states, with concentrated activity in the Midwest and Southeast. Areas of heavy precipitation (shown in purple/red/yellow hues) overlap with many tornado-affected regions, illustrating the compound severe weather events that occurred that month.",
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                        "media_type": "Image",
                        "alt_text": "This visualization shows a map of the continental United States with tornado tracks and color-coded precipitation levels during May 2025. Multiple tornado paths are visible across the central and eastern states, with concentrated activity in the Midwest and Southeast. Areas of heavy precipitation (shown in purple/red/yellow hues) overlap with many tornado-affected regions, illustrating the compound severe weather events that occurred that month.",
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            "description": "May 2025 experienced an exceptionally active severe weather season across the continental United States, with multiple outbreaks causing widespread devastation from both tornadoes and flooding. After a relatively quiet start to the month, severe weather erupted on May 15-16, producing at least 79 confirmed tornadoes that struck regions including Marion, Illinois, and Somerset/London, Kentucky. The May 16 outbreak resulted in significant casualties across multiple states, with St. Louis experiencing catastrophic damage from a nearly mile-wide wedge tornado. Heavy rainfall accompanied these storm systems, with 24-hour precipitation accumulations exceeding dangerous thresholds in many areas, leading to significant flash flooding and river flooding across several states. A second major outbreak from May 18-20 generated at least 118 additional tornadoes and brought torrential downpours that exacerbated flooding in already saturated regions. The combination of tornadic activity and extreme precipitation created compound disasters in many communities, highlighting the extreme nature of the atmospheric conditions that fueled these devastating weather patterns across the central and eastern United States.",
            "items": [],
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    ],
    "studio": "svs",
    "funding_sources": [],
    "credits": [
        {
            "role": "Visualizer",
            "people": [
                {
                    "name": "Joseph V. Ardizzone",
                    "employer": "NASA/GSFC"
                },
                {
                    "name": "Helen-Nicole Kostis",
                    "employer": "Science and Technology Corporation"
                }
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    "missions": [],
    "series": [],
    "tapes": [],
    "papers": [],
    "datasets": [
        {
            "name": "GEOS Forward Processing 2Km Replay",
            "common_name": "GEOS-FP 2Km Replay",
            "platform": null,
            "sensor": null,
            "type": "Model",
            "organizations": [],
            "description": "",
            "credit": "",
            "url": "",
            "date_range": "May 1-31, 2025"
        }
    ],
    "nasa_science_categories": [
        "Earth"
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    "keywords": [
        "Earth Information Center",
        "GMAO",
        "Hyperwall",
        "Natural Disaster"
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            "url": "https://svs.gsfc.nasa.gov/5584/",
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            "title": "Daily Global Landslide Exposure Map",
            "description": "This daily map shows results from the Landslide Hazard Assessment for Situational Awareness (LHASA) model, helping users identify areas where landslides may occur.",
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            "update_date": "2026-01-07T16:31:09.214597-05:00",
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                "alt_text": "Global landslide risk assessment map with color-coded hazard levels ranging from red (very high risk) to yellow (low risk). Red areas indicate the highest landslide risk, orange shows elevated risk, and yellow represents low risk areas.",
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            "title": "Daily Visualizations of the Largest Wildfires in the United States: 2025",
            "description": "Wildland fires pose significant threats to ecosystems, property, and human lives. Leveraging NASA’s satellite data, advanced models, visualization capacity and computing power, we analyze fire events, monitor how weather conditions impact fires and how regional air quality affects communities. Through this webpage we offer daily updated visualizations of the two largest active wildfires events in the continental United States throughout fire season.",
            "release_date": "2025-09-08T16:30:00-04:00",
            "update_date": "2026-03-12T15:19:14.483700-04:00",
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    "related": [
        {
            "id": 5596,
            "url": "https://svs.gsfc.nasa.gov/5596/",
            "page_type": "Visualization",
            "title": "Tracking Weather Extremes: December 2025 Pacific Northwest Flooding",
            "description": "Created with NASA's GEOS data, this visualization shows the December 2025 atmospheric river that brought extreme precipitation to the Pacific Northwest. The analysis displays total precipitable water from the Pacific Ocean and resulting precipitation across Washington, Oregon, British Columbia, and Montana. This Category 5 atmospheric river delivered up to 10 inches of rain and forced over 100,000 evacuations in Washington state.",
            "release_date": "2026-01-27T17:00:00-05:00",
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            "main_image": {
                "id": 1195548,
                "url": "https://svs.gsfc.nasa.gov/vis/a000000/a005500/a005596/PacificNorthwestFlooding_Dec2025_1920x1080.png",
                "filename": "PacificNorthwestFlooding_Dec2025_1920x1080.png",
                "media_type": "Image",
                "alt_text": "Map visualization showing atmospheric river moisture transport from the Pacific Ocean into the Pacific Northwest region during December 2025. The visualization displays two components: colored areas representing total precipitable water as the atmospheric river moves inland from the Pacific, and precipitation accumulation patterns across Washington, Oregon, British Columbia, and Montana. The atmospheric river appears as a continuous moisture plume extending from the Pacific Ocean eastward into the continental landmass. Areas of heavy precipitation accumulation are shown in red to yellow hues across the Pacific Northwest region, indicating where the most intense rainfall occurred during this flooding event.",
                "width": 1920,
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        },
        {
            "id": 5595,
            "url": "https://svs.gsfc.nasa.gov/5595/",
            "page_type": "Visualization",
            "title": "Tracking Weather Extremes: July 2025 Texas Precipitation and Guadalupe River Flooding",
            "description": "Created with NASA's GEOS-FP 2km replay data, this visualization shows extreme precipitation across Texas from June 30 - July 5, 2025. The Hunt City, marked on the visualization, experienced 6.5 inches of rain in three hours on July 4th, triggering catastrophic Guadalupe River flooding that reached record-breaking levels of 37.52 feet - the highest ever recorded at this location.",
            "release_date": "2025-12-29T15:50:00-05:00",
            "update_date": "2026-01-07T15:54:42.569124-05:00",
            "main_image": {
                "id": 1195337,
                "url": "https://svs.gsfc.nasa.gov/vis/a000000/a005500/a005595/guadalupe_flood_Texas_2025_1920x1080.png",
                "filename": "guadalupe_flood_Texas_2025_1920x1080.png",
                "media_type": "Image",
                "alt_text": "Map of Texas showing color-coded 24-hour precipitation accumulation from June 30 - July 5, 2025. The visualization displays varying precipitation levels across the state using a color scale, with purple/red/yellow hues indicating higher rainfall amounts. A black dot marks the location of Hunt City in the Texas Hill Country region, where extreme precipitation of 6.5 inches in three hours on July 4th caused catastrophic flooding of the Guadalupe River. The precipitation patterns show concentrated heavy rainfall in the central Texas Hill Country area, with Hunt City located in one of the areas of highest accumulation.",
                "width": 1920,
                "height": 1080,
                "pixels": 2073600
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        },
        {
            "id": 5594,
            "url": "https://svs.gsfc.nasa.gov/5594/",
            "page_type": "Visualization",
            "title": "Los Angeles Palisades Wildfire, January 2025: Black Carbon, Weather, and Air Quality",
            "description": "NASA GEOS model visualization showing black carbon dispersal from the Palisades Fire overlaid with regional weather patterns and air quality indicators, January 2-14, 2025.",
            "release_date": "2025-12-29T15:00:00-05:00",
            "update_date": "2026-01-07T15:57:31.509704-05:00",
            "main_image": {
                "id": 1195333,
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        {
            "id": 31309,
            "url": "https://svs.gsfc.nasa.gov/31309/",
            "page_type": "Hyperwall Visual",
            "title": "GEOS-FP May 2024 US Tornado Outbreak",
            "description": "Visualization of model output for severe weather in May 2024 in the US || us_tornadoes_sw-2024-003.nasa.gmao.geos-fp.conus_2km_replay.max_uphelicity.2160p_print.jpg (1024x576) [347.0 KB] || us_tornadoes_sw-2024-003.nasa.gmao.geos-fp.conus_2km_replay.max_uphelicity.2160p.png (3840x2160) [12.0 MB] || us_tornadoes_sw-2024-003.nasa.gmao.geos-fp.conus_2km_replay.max_uphelicity.2160p_searchweb.png (320x180) [121.1 KB] || us_tornadoes_sw-2024-003.nasa.gmao.geos-fp.conus_2km_replay.max_uphelicity.2160p_thm.png (80x40) [8.1 KB] || us_tornadoes_sw-2024-003.nasa.gmao.geos-fp.conus_2km_replay.max_uphelicity.1080p.webm (1080x1080) [10.9 MB] || us_tornadoes_sw-2024-003.nasa.gmao.geos-fp.conus_2km_replay.max_uphelicity.1080p.mp4 (1080x1080) [110.9 MB] || us_tornadoes_sw-2024-003.nasa.gmao.geos-fp.conus_2km_replay.max_uphelicity.2160p.mp4 (3840x2160) [350.6 MB] || ",
            "release_date": "2024-09-23T00:00:00-04:00",
            "update_date": "2025-06-23T00:35:07.472889-04:00",
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                "alt_text": "Visualization of model output for severe weather in May 2024 in the US",
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