It continues to be a wet weekend up the Eastern Seaboard courtesy of a frontal boundary while the monsoonal flow brings storms, flash flooding and threats of flash flooding to several parts of the West including Phoenix and Las Vegas.
The front responsible for bringing wet weather from Florida to New Jersey into southern New England along with the descent of another, reinforcing trough, will help keep Bertha out at sea this week.
Latest infrared on Bertha.
Bertha’s holding her own against a sea of dusty air extending from Africa to the Caribbean.
As the system lifts out of the dusty air within the ITCZ zone and into a calmer, less sheared environment nearer the Bahamas, intensification is expected.
NHC has recurve track but brings it to hurricane status NW of Bermuda.
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Bertha may make a close enough approach to the East Coast this week to boost the rain and thunderstorm activity up the Eastern Seaboard.
Current frontal zone has a flood threat up the Carolina coastal plain today!
Here’s an AccuWeather graphic showing the early workweek setup across the US.
Today’s surface map off the GFS
Upper
Today’s Southwest flash flood threat (via WeatherNation)
Looking further down the road. Remember Typhoon Neoguri and the 6-11 day record cold eastern US trough which followed?
There’s not one but two more typhoons likely to turn NNE near Japan over the next week and modelling supports further troughs into the eastern US as a downwind result.
GFS 16 day 500mb height anomalies.
CFSv2 temps through the next 4 weeks.
Wouldn’t be surprised if we get another super trough into the East before the end of August given the potential re-amplification of the height field from East Asia to North America from the ripple effect of these typhoons.
This simply promises more cool, wet weather for the East and little to no 90 degree weather for the Big Eastern cities on the horizon. We’re likely to see some of the least 90s in a summer from the Mid-Mississippi Valley to Atlantic coast in years.
Be sure to check out today’s video for discussion!
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