Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 504 AM EDT Wed May 08 2013 Valid 12Z Wed May 08 2013 - 12Z Fri May 10 2013 ...Accumulating snows possible over the Colorado Rockies... ...An increase in convection is expected across the Nation's mid-section... ...Damp and dreary conditions are in the forecast for the Northeast... Widespread showers and thunderstorms will continue across the Western U.S. through the middle of the work week as a closed low aloft slowly inches through the Four Corners region. Limited moisture across the area should keep precipitation totals to a minimum. However...strong easterly/northeasterly flow against the Colorado Rockies should force some heavier upslope precipitation across the front range...and temperatures should be low enough to support accumulating snows in the higher elevations. An increase in convection is expected across the Nation's mid-section the next few days as a the closed low in the Western U.S. edges eastward and low level southerly flow draws Gulf moisture northward. Showers and thunderstorms will be focused along a frontal boundary gradually pushing eastward through the Midwest and Central to Southern Plains. Some organized and potentially severe storms will be possible...please refer to the Storm Prediction Center for more information. A closed low will finally be exiting the Eastern Seaboard during the short range period. Atlantic moisture getting wrapped inland ahead of an occluded cold front lifting through the Northeast should still fuel some organized areas of rain and thunderstorms...but the system will be weakening with time...reducing the threat for any heavy rains and flash flooding. Gerhardt Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php