Jump to content



Register as a member today, and become part of the Delaware Valley weather community!

Our pro and seasoned amateur meteorologists, and weather enthusiasts from around the PA and NJ area together form a great group discussion, and we're asking folks that read our site today to register as members and post along with us!

Don't be intimidated if you're not an expert, ask questions if you're curious or want to build your knowledge!

Whether it's adding to our local profiles by reporting observations (and maybe becoming a SkyWarn Spotter!), or contributing more on the model interpretation side, we'd like you to join us in a constructive and insightful dialogue around all things Philly Weather!


  • Content Count

  • Joined

  • Last visited

  • Days Won


Everything posted by Chubbs

  1. Mt. Holly (and State College) the east coast watch hot spot so far this year.
  2. Not much movement. We've had distant thunder for hours with just a few sprinkles.
  3. Distant thunder, a few sprinkles over past hour or so as storms slid by to the north
  4. Nice summer eve: full moon to the SE and frequent lighning SW
  5. What is a derecho? A derecho (pronounced similar to "deh-REY-cho" in English, or pronounced phonetically as "") is a widespread, long-lived wind storm associated with a band of rapidly moving showers or thunderstorms variously known as a squall line, bow echo, or quasi-linear convective system. Although a derecho can produce destruction similar to that of a tornado, the damage typically occurs in one direction along a relatively straight swath. As a result, the term "straight-line wind damage" sometimes is used to describe derecho damage. How strong are derecho winds? By definition, a derecho must include wind gusts of at least 58 mph (50 knots or 93 km/h) or greater along most of its length. While derecho winds typically are less than 100 mph, gusts as high as 130 mph have been recorded --- equivalent to those with strong EF2 tornadoes. What are the dimensions of a derecho? A derecho wind damage swath must extend more than 240 miles (about 400 kilometers). This criterion is used to eliminate more common, shorter-lived, and generally less-organized wind-producing convective systems. Although no formally-recognized width criterion exists for a derecho, the nature of the storm systems responsible for their development dictates that most derechos span at least 50 miles (80 km) in width. https://www.spc.noaa.gov/misc/AbtDerechos/derechofaq.htm
  6. Interesting how system intensified as it reached Berks County. As was mentioned up thread could have been worse if timing was later during peak heating,, but then round 2 would have been weaker.
  7. Today upgraded to slight. Some in area may get hit 2 days in a row. ...Mid Atlantic region... A corridor of low to mid 60s F dewpoints will persist east of the higher terrain and along southern periphery of belt of modest westerlies. By early to mid afternoon, MLCAPE from 1500 to 2000 J/kg is expected from VA and MD into southern PA and NJ. Storms are expected to develop over the higher terrain and along lee trough as the boundary layer destabilizes. Vertical shear will remain weak, but 25-35 kt deep layer flow will support storms spreading east off the higher terrain, possibly evolving into loosely organized clusters capable of strong to damaging wind gusts.
  8. Sunny, very warm, and windy fishing in OC Md. Home: 0.41" , high 89,.current 84, tree down next door
  9. Like a cloudy day this time of year. Cooler and improves the fishing. Octararo Lake.
  10. These always come down to game day conditions, but GFS and NAM pretty bullish overnight for our area.
  11. Nice if we could continue the blocky Atlantic pattern like today's euro. Pattern is too cool in May/April but comfortable in June.
  12. 84F muggy 0.00" distant thunder, lightning on horizon after dark
  13. I vote for the NW flow events, but guess we won't get any good events without some heat. Potentially one or more severe threats as our seasonal odds increase.
  14. Some storms starting to fire in the lee trough. May get an early round.
  15. Foggy and cool at the shore, muggy 82 back home
  16. cloudy, foggy, drizzly in OC today - temp around 70.
  • Create New...