Thursday, September 8, 2011

     Scraps from the once Tropical Storm Lee still hung up over the Ohio Valley today. The wedge-shaped low pressure center depicted here is in essence trapped overhead by high pressure to the NW and the arctic front & associated trough pushing south into SE'rn Canada. The system will continue to provide abundant clouds, cooler temps and rainy periods across the Ohio Valley & Mid Atlantic states today well into the weekend. Meanwhile, a stationary front along the eastern seaboard is brings unsettled weather to eastern PA, NJ and parts of the northeast. Major flooding is ongoing for these locations and an additional 3+ inches of rain is forecast or the next 48 hours...Katia is now a sidenote, bringing only rip currents & higher than usual surf to our east coast. But at least one additional tropical threat (named Maria) gathers steam as we turn our calendars to peak hurricane season.

     Today in the mountain state...we'll have a sun/cloud mix as a well defined dry slot (visible on radar) http://weather.unisys.com/radar/rcm_rad.php?image=rad&inv=0&t=l&region=at builds into our area. All-in-all, not a bad day on tap considering the weather that our neighbors to the north are dealing with. Highs will reach the mid to upper 70s, depending on just how much sun shines during the day. But a few afternoon & evening showers & storms are possible, especially in our northern mountains.

     Tonight...spotty shower and thunderstorm activity will linger, especially in the mountains. Lows will fall into the low 60s. The combination of broken low level cloud cover, wet soils and light winds will allow for patchy dense fog to develop into Friday morning.

     Friday, upper level low pressure will waiver west into the lower Ohio Valley/Mississippi River Valley, keeping isolated thunder in our forecast Friday afternoon & into the weekend. Highs will be in the upper 70s/low 80s.

     Our weekend weather is not a total loss. We'll have a sun/cloud mix with a majority of the cloud coverage leaning towards the northwestern portions of our state-remnants from Lee. Low pressure associated with Lee will eventually open up aloft, weaken further and meander into the northeast by next week. The threat for isolated showers and storms will continue Saturday and Sunday. Highs will peak near 80. Lows will fall to near 60. But some places in higher elevations could very well see mid 50s overnight this weekend.

     Next week...Monday's forecast looks reasonable. Highs will reach the low 80s under partly cloudy skies. But another frontal boundary will bring a dash of rain and cooler weather for Tuesday and Wednesday next week.