Discussion: A generally flat 500 mb pattern exists across the Eastern United States right now. Some weak ridging is evident over the southeastern states, while some more pronounced negative height anomalies are present over a broad area of eastern Canada. An intensifying shortwave trough over Ontario will move into New England on Tuesday. At the surface, high pressure is currently in control for much of the eastern US. A cold front will approach the region on Tuesday as an area of low pressure tries to develop well to our north and east. This front will become a focal point for shower and thunderstorm development Tuesday afternoon and evening. In the wake of the front, dry conditions, pleasant temperatures and sunny skies will return.
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Ryan Gallagher on Twitter
- Some potentially tornadic thunderstorms from a friend in Iredell County, NC. #ncwx twitter.com/billmcmicheals… 7 hours ago
- Severe threat could warrant a severe weather watch later this afternoon for upstate south carolina. twitter.com/nwsspc/status/… 12 hours ago
- Airmass is warm, humid and marine sourced. Despite the intervals of sunshine, air quality is likely to stay “good”… twitter.com/i/web/status/1… 12 hours ago
- Scattered to numerous thunderstorms across the upstate, isolated storms for the midlands this afternoon. KCAE - Sup… twitter.com/i/web/status/1… 13 hours ago
- The verification for our ozone forecasting algorithm has been fantastic this month. (Orange - forecast; blue - obse… twitter.com/i/web/status/1… 13 hours ago
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