Volcanic plume from Okmok moves over the Pacific Northwest
On the morning of 17 July 2008, we received the following email from Ron Miller at the National Weather Service forecast office in Spokane, Washington:Can you tell... Read More
On the morning of 17 July 2008, we received the following email from Ron Miller at the National Weather Service forecast office in Spokane, Washington:Can you tell... Read More
A mesoscale convective system (MCS) moved southward across southern Wisconsin during the morning of 11 July 2008, producing a well-defined bowing segment along the southern flank. As the MCS continued to decay into the late morning hours, the signature of a weak Mesoscale Convective Vortex or MCV (see Interesting Clouds on Satellite: “Mesoscale Convective Vortex” from the NWS... Read More
Numerous severe thunderstorms developed along the foothills of the Rockies and the High Plains during the afternoon hours on 19 June 2008. AWIPS images of the MODIS 11.0 µm “IR window” channel, Cloud Top Temperature product, and 3.7 µm “shortwave IR” channel (above) showed some of these areas of convection... Read More
Severe convection along an advancing cold frontal boundary was responsible for several tornadoes and reports of damaging winds across southeastern Virginia on 28 April 2008 (SPC storm reports | Wakefield, Virginia NWS forecast office storm report). AWIPS images of the GOES-12 10.7 µm IR channel data (above) showed that cloud top brightness temperatures began to cool into the -55 to... Read More