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VIIRS view of Invest 97S at night
On 5 April 2012, the Joint Typhoon Warning Center was watching an area of the Mozambique Channel for possible development of a tropical cyclone. This area was named Invest 97S. As 6 April 2012 was a full moon, this is … Continue reading
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Tagged day/night band, DMSP, I-5, OLS, tropical storm, VIIRS
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Time-lapse of the Lower North Fork Fire
On 26 March 2012, strong winds, high temperatures and low humidities re-ignited embers from a controlled burn that took place the previous week near Conifer, CO. The Lower North Fork fire quickly spread in the high winds, eventually burning more … Continue reading
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Tagged false color, fire, I-4, RGB composite, VIIRS
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I- and M- Band Views of the Heartstrong Fire
On 18 March 2012, very warm, very dry and very windy conditions existed throughout eastern Colorado. Surface observations showed temperatures in the 70s and 80s, dew points in the teens and 20s, and sustained winds at 20-30 knots (gusting over … Continue reading
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Tagged fire, I-4, M-12, M-13, resolution, true color, VIIRS
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Aurora Borealis from the Day-Night Band
On 6 March 2012, a massive solar flare erupted and an associated coronal mass ejection was launched toward Earth. Video of the solar flare from NASA’s Solar Dynamics Observatory can be viewed here. NOAA’s Space Weather Center forecast the coronal … Continue reading
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Tagged aurora, day/night band, ice and snow, VIIRS
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VIIRS View of March 2 Tornadic Storms
NPP/VIIRS passed over Southern Indiana on March 2 about thirty minutes before the most devastating tornadoes struck the towns of New Pekin and Henryville (among others). At 1935 UTC, a pair of rotating thunderstorms, also known as supercells, were advancing … Continue reading
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Tagged IR window, overshooting tops, severe weather, true color, VIIRS, visible
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A Tropical Winter Wonderland
It’s not every day the official National Weather Service forecast from Honolulu, HI calls for freezing rain and snow in parts of Hawaii, but that’s what happened 19 February 2012 for the Big Island. Mauna Loa and Mauna Kea both … Continue reading
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Tagged false color, Hawaii, ice and snow, RGB composite, true color, VIIRS
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Tropical Cyclone Giovanna
Back in January, Madagascar was brushed by tropical cyclone Funso, which caused periods of heavy rain, but was a bigger deal for neighboring Mozambique. This time around, Madagascar took a direct hit from tropical cyclone Giovanna, which reached “Super Cyclone” … Continue reading
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Tagged category 4, giovanna, IR window, Madagascar, tropical storm, VIIRS, visible
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A squall line over Texas as seen by VIIRS
This squall line had several overshooting tops over the Gulf of Mexico that reached a temperature of -77 C. A zoomed-in view of these tops are shown below. The dark blue pixels near the center of the image indicate an … Continue reading
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Tagged IR window, overshooting tops, severe weather, squall line, VIIRS
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