after a nice weekend, here we are back in the pea soup again! I hope this ends soon, but it doesn't look promising to me. I'm even starting to go out on hikes in the rain.... SHEESH!
Mount Washington Valley Forecast
Tuesday, July 9, 2013 4:25 AM
Notice: Heavy, prolonged rains Tue-Wed may lead to flash flooding in areas.
A stalled front to our south today will lift overnight as a warm front followed by a cold front on Wednesday. With moist air in place, todays stalled front will be able to produce scattered rain showers that may turn into thunderstorms during the afternoon. Overnight, the warm front lifts northward continuing scattered rain showers and possibly producing a few thunderstorms. Wednesday may see a brief break in rain shower activity during the morning; however, by the afternoon, the approaching cold front from the west will spread showers and thunderstorms back in. Showers will be slow moving and possibly heavy at times over the forecast period continuing the risk of flash flooding around the state. And conditions by Wednesday afternoon may allow for severe thunderstorms to develop bringing heavier periods of rain, strong and sudden gusts of wind, and large hail.
Wednesday night through Thursday night, the cold front slowly traverses the region continuing widespread rain showers and occasional thunderstorms. Thunderstorms may once again become severe by Thursday afternoon as instability reaches its height. Behind the cold front, cooler and drier air will work in, finally bringing relief from the muggy conditions of recent. And this is where the model agreement ends as the weekend forecast has been all over the map the past few days. As of now, all of them are showing Canadian high pressure building in at the surface. This ridge was supposed to build into the upper atmosphere too, but now each model run is showing a strengthening upper level cutoff low over the region for the weekend. If this comes to be, a continuation of the wet and stormy weather can be expected through the weekend as the atmosphere remains destabilized.