The image at left shows the weather map for the U.S. valid 5 PM Thu Apr 26 2007. New England is under the influence of a high pressure system just off the Atlantic coast. The weather maker for the next three days is a slow-moving low pressure system that is over Illinois on the map.

Discuss the evolution of this low pressure system and its associated mesoscale features (i.e. fronts, thunderstorms, etc.). Discuss also one of the following: 1) it's influence on New England weather, particularly that of Northern Vermont, in any one of the next three days; 2) it's past effect on weather over the southern U.S. (it was associated with severe weather outbreaks in the past three days).

Here are a few links to help you discuss this case. You may upload imagery and data found here to the discussion board:

Course weather page: Describes local conditions at LSC

HPC's Surface analysis archive: Archive of surface maps, satellite, and radar imagery back to 7 days

HPC Forecasts: Current weather map and forecast out to 5 days

Storm Prediction Center (SPC): Current national radar map with weather warning/watch boxes for severe weather

SPC Storm reports: Current storm reports; you can navigate this page for daily storm reports back several years; the past three days of storm reports

New England Surface weather loop: Station reports and fronts for New England