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Greenbelt MD (SPX) Apr 27, 2011 A low pressure area currently over northern Illinois and southern Wisconsin has created conditions that call for a forecast of severe weather in the eastern third of the U.S. and one area is even labeled "high risk." The GOES-13 Satellite captured a visible image of the system as daytime heating was boiling up strong and severe thunderstorms. What's unusual about the system is that there are a handful of days where a "high risk" for severe weather is noted by NOAA's National Severe Storms Laboratory (NSSL). April 26, 2011 is one of them. The high risk area includes southern Arkansas, extreme northwest Louisiana and extreme northeastern Texas. A moderate level of risk surrounds that area and stretches from west Tennessee, including Memphis, all of eastern Arkansas, northwest Louisiana and further into northeastern Texas. A slight risk for severe thunderstorms stretches from western Massachusetts through New York, the Appalachian Mountains to the Ohio Valley, Tennessee Valley and through the southeast west toward Texas. See risk map The Geostationary Operational Environmental Satellite called GOES-13 has been getting a workout with all of the severe weather this season. GOES is operated by NOAA and images and animations are created by the NASA GOES Project at NASA's Goddard Space Flight Center in Greenbelt, Md. The image created at 1832 (2:32 p.m. EDT) showed cloud cover associated with the low stretching from New England to east Texas. The cloud cover from Michigan through the Ohio, Mississippi and Tennessee Valleys are associated with the cold front portion of the low pressure area. The clouds associated with the warm front associated with the low stretches east from northern Illinois to Massachusetts. The NSSL noted that flash flooding from the thunderstorms is possible from the area of the front from southwestern Indiana through western Kentucky, western Tennessee, southeastern Missouri, Arkansas and northwestern Mississippi. Severe thunderstorms are possible in those areas today. This storm already has a history of dumping heavy rainfall as the central Mississippi Valley reported up to half a foot of rain from the system and the lower Mississippi Valley experienced as much as a foot in some areas.
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Running ring around hurricanes predictionsChampaign IL (SPX) Apr 25, 2011 Coastal residents and oil-rig workers may soon have longer warning when a storm headed in their direction is becoming a hurricane, thanks to a University of Illinois study demonstrating how to use existing satellites to monitor tropical storm dynamics and predict sudden surges in strength. "It's a really critical piece of information that's really going to help society in coastal areas, no ... read more |
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