Hello to meteorological summer of 2015…
The pattern this month looks to be shaping up to be a very progressive one with warm surges coming and going only to be replaced by cool shots dropping out of Canada. Change is on the offing for the dry Eastern Seaboard while it’s finally heating up over the Desert Southwest with Las Vegas and Phoenix finally crossing the 100-degree barrier.
Interestingly the high of 104 in Vegas yesterday tied a record for the date.
The building of heights up over Canada and lowering of heights across the Southern Tier into the Gulf means one must watch for spin ups, especially when the tail of fronts cross out over that warm water.
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ECMWF 500mb height anomalies through the next 6 days shows the negative heights pushing east from Texas to Southeast and up into the Northeast while another slides slides into Southern California from off the Pacific.
Credit: AccuWeather Pro
Credit: AccuWeather Pro
Credit: AccuWeather Pro
We’re entering a wetter pattern up and down the East Coast where it’s been increasingly dry during April and particularly May.
Next 7 days
Next 10 days
Credit: AccuWeather Pro
The first chance of a tropical spin up comes later this week and the weekend as the big cool high pushes over the East with a boundary bringing enhanced rain and thunderstorm activity widely across the Southeast. The tail of that boundary may well blow up a cluster of thunderstorms to the east of Florida which the GFS has had for days now. With waters as warm as they are, it won’t take much if the environment is right over a fairly small area.
Credit: AccuWeather Pro
Credit: AccuWeather Pro
Good to see Texas and Oklahoma catching a break following the wettest May on record.
Credit: AccuWeather
Credit: AccuWeather
Credit: AccuWeather
Interestingly, Dallas is entering rare territory with temperature due to that excessive wet past 30 days. The highest temp so far this year is 88. On average, the first 90-degree day is April 19. Only 5 years in recorded history has Dallas failed to reach 90 by June 1. The last such late occurance was 1983 when it took till June 3rd for the first 90 to occur. The latest on record was June 12, 1970.
See today’s video for the discussion.
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