* GOES-17 images shown here are preliminary and non-operational *GOES-17 Low-level (7.3 µm), Mid-level (6.9 µm) and Upper-level (6.2 µm) Water Vapor images (above) showed the intensification of a Hurricane Force low over the East Pacific Ocean on 07 January 2019 (surface analyses).A comparison of NOAA-20 VIIRS True Color Red-Green-Blue (RGB) and Infrared Window... Read More

* GOES-17 images shown here are preliminary and non-operational *The first official temperature of -50ºF or colder during Alaska’s 2018/2019 winter season was reported by the cooperative observer at Chicken on 06 January — the 24-hour high temperature at that site was -45ºF, with a low of -51ºF (NWS Fairbanks summary). A... Read More

A winter storm produced 6-8 inches of snowfall from the eastern Texas Panhandle to central Oklahoma on 03 January 2019 (NWS Amarillo |  NWS Norman). On the following day, GOES-16 “Red” Visible (0.64 µm) images (above) revealed the areal extent of the snow cover, with significant melting occurring by the late afternoon hours. The snow... Read More

GOES-16 (GOES-East) Near-Infrared “Snow/Ice” (1.61 µm) images (above) revealed a darker swath — oriented southwest to northeast, from central South Dakota to central Minnesota — highlighting areas which received an accrual of ice (from freezing rain/drizzle) during a 30 December – 31 December 2018 mixed precipitation event (surface analyses). Light to moderate Freezing Rain was... Read More