Sunday, July 01, 2012
Weather Rewind: June 24-30, 2012
That heat came with a tremendous price on Friday night with the Midwest to Mid-Atlantic Derecho event that crossed over 1000 miles of real estate in 17 hours. Cleanup from that event will take several days but was part of a rather stormy day on Friday as a morning squall line zipped southeast through the Philadelphia area and brought a loud wake up with gusty winds and some hail. Outside of the severe weather events, rainfall was rather modest through the region last week.
Nationally, temperatures for June were hottest in the Plains, where dry weather plus a ridge of high pressure that had been parked over the Plains for much of the month lead to all-time record highs being set in Colorado, Kansas, and Nebraska. That heat transported eastward on occasion, with the brunt of summer heat pushing east this week and setting records through the South (all-timers set in Nashville, Atlanta, and a host of other locations to our south). Much of this heat originated in the Plains States and isn't due exclusively to a Bermuda High or "heat ridge" as it is a transport of heat from the west, buoyed by a ridge of high pressure across the South.