McIDAS images of GOES-15 (GOES-West) 0.63 µm visible channel data (above) showed the west-to-east progression of the lunar umbra (the Moon’s shadow) from a partial solar eclipse that occurred on 23 October 2014. The shadow was most obvious across the northern portion of the images, moving over Alaska, the Gulf of... Read More
A plot of the Advanced Dvorak Technique (ADT) intensity estimate for Ana (above) shows that the strength of the tropical cyclone fluctuated during its multi-day lifetime (storm track), initially becoming a strong Tropical Storm on 15 October, weakening on 16 October,... Read More
Suomi NPP VIIRS 11.45 µm Infrared imagery, above, shows the slow strengthening of Ana as it approaches the Big Island of Hawai’i from the east-southeast. For further information on this storm, consult the Central Pacific Hurricane Center website. Ana possesses a noticeable central dense overcast, with overshooting tops that are very cold; brightness temperatures... Read More
McIDAS images of GOES-15 (GOES-West) 6.5 µm water vapor channel data (above; click image to play animation) showed an upper-level low that moved from east to west over the Hawaiian Islands during the 13 October – 14 October 2014 period. This low forced the development of widespread showers and thunderstorms,... Read More
