Preliminary Damage Results for Port Orchard Tornado have been released. Survey finds EF-2 #tornado damage from Tuesday December 18th. Details in graphic and at: https://t.co/fnaZxgYG6U #wawx #PortOrchardTornado pic.twitter.com/jxpsBgkmgC — NWS Seattle (@NWSSeattle) December 19, 2018 * GOES-17 images shown here are preliminary and non-operational *A rare December tornado occurred in Port Orchard, Washington... Read More
A pair of circular contrails was seen along the coast of the Florida Panhandle in GOES-16 (GOES-East) “Red” Visible (0.64 µm), Near-Infrared “Cirrus” (1.37 µm) and Low-level Water Vapor (7.3 µm) images (above) on 18 December 2018. The contrail features were moving eastward at speed of 50-60 knots.GOES-16 Water Vapor weighting functions derived using 12 UTC rawinsonde data from... Read More
GOES-16 (GOES-East) Low-level (7.3 µm), Mid-level (6.9 µm) and Upper-level (6.2 µm) Water Vapor images (above) showed the development of an orographic standing wave cloud — downwind of the Appalachian Mountains (topography) — over the Mid-Atlantic states on 17 December 2018. North of the wave cloud, widespread short-wavelength mountain waves were seen at lower elevations... Read More
A large midlatitude cyclone moved from the southern High Plains to the Lower Mississippi Valley during the 13 December – 15 December 2018 period (surface analyses) — GOES-16 (GOES-East) Low-level Water Vapor (7.3 µm) images (above) showed the evolution of this system.The corresponding GOES-16 Water Vapor images with plots of hourly surface wind gusts are... Read More
