Another Severe Threat: For This Afternoon & Evening

Wednesday AM: 6/3/09

Another Severe Threat for this Afternoon and Evening, mainly from PHL and points South into DE and Southern NJ.

Once again the Delaware Valley will have a slight to moderate risk of Severe Thunderstorms for this afternoon and evening. Yesterday afternoons Severe Storms rolled through much of Northern DE and into Southern NJ with many reports of wind damage in Salem and Cumberland Counties.

A nearly stationary front continues to be draped across the region this morning and will press slowly south as it stalls out just to our south tonight and tomorrow. Showers and thunderstorms in the Midwest and Ohio Valley will move east along this front today, and should reach the area sometime this afternoon and continue into this evening. With some sunshine and plenty of moisture, the atmosphere will become unstable this afternoon as temps climb to the upper 70's (Northern areas) to the mid 80's (DE and Southern NJ).

Strong to Severe thunderstorms will once again develop over MD and SE PA and move east and southeastward into parts of DE and Southern/Central NJ this afternoon. Strong damaging winds, Dangerous cloud to ground lightning and hail, will be the main threat with these storms. A Severe Thunderstorm Watch will probably be issued once again for this afternoon. I'm forecasting the highest threat to be mainly from PHL and points south, as this will be the warmer and more unstable sector.

With todays activity I expect 2 or perhaps 3 lines/Clusters of storms to move through Between early this afternoon and into later this evening. Later tonight and into Thursday, the atmosphere will become more stable and occasional rain and cooler temps can be expected. Highs on Thursday will be in the mid to upper 60's. Some mid 70's over southern DE closer to the stalled front, where a few thunderstorms will be in the mix over our furthest southern regions.

Visible Satelite Loop: NE and M/A Region.

http://www.meteo.psu.edu/~gadomski/SAT_PA/anim8vis.html

Local Radars:

http://www.wunderground.com/radar/radblast.asp?zoommode=zoom&num=6&delay=15&scale=0.750&noclutter=0&ID=DOX&type=N0R&lat=39.15845871&lon=-75.49326324&label=Dover,%20DE&showstorms=0&map.x=413&map.y=208&centerx=386&centery=317&lightning=0&showlabels=1&rainsnow=0

http://www.intellicast.com/National/Nexrad/BaseReflectivity.aspx?location=USNJ0562&animate=true&enlarge=true

Take Care,
Ruggie