Snow: It’s getting late, but these things usually happen

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One of the amazing things about the numerical models that forecast the weather is that they have the capacity to see the counterintuitive –... Read more

Snow: Yes, that word is back in the forecast

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We can assert with absolute certainty that not a flake of snow has ever fallen in Philadelphia after a February in which the official temperature... Read more

Sneeze-o-Meter: When wind eases up, so does tree pollen

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Based on the sampling by Dr. Donald J. Dvorin at the Asthma Center, who is the official pollen counter for the National Allergy Board, tree... Read more

Spring backward: From May days to snowflakes

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Snow flurries and squalls moved across Pennsylvania and the Philadelphia region on Friday, causing some serious traffic problems upstates. But... Read more

Sneezin’ Season: Something in the air, all too soon

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The annual reproductive frenzy among the region’s tree life evidently is off to a torrid start. Tree-pollen counts on Thursday were... Read more

Severe-thunderstorm watch remains in S. Jersey

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A powerful line of thunderstorms was heading toward the Jersey coast late Wednesday, and a severe-thunderstorm watch remained for South Jersey... Read more

February ices warmth title; winter makes top 6

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Another day, another record. Appropriately, on the last day of this incredibly warm month, the official temperature in Philadelphia made it... Read more

Legacy of a warm winter: D.C. cherry blossoms getting jump-start

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The peak of the Washington cherry blossom show in the Tidal Basin area is notoriously variable, having arrived as late as April 18 after the... Read more