Soaring Temperatures &amp Strong Thunderstorms Headed to DC

July and August are my least favorite months in the year for reasons that we will all be feeling here in the National Capital Region Thursday and Friday as high temperatures soar into the middle to upper 90s. 

GEFS_temperatures

An upper level ridge of High Pressure that is currently responsible for the nasty heat wave across the Plains will edge to the east this week pumping the heat and humidity into our region. The medium range models (image seen below, courtesy tropicaltidbits.com) suggests that after a brief break this weekend… heat may build in early next week lasting through mid to possibly even late July!

GEFS_500mb_anom

A shortwave will move across the DC Region on Thursday afternoon potentially touching off scattered Severe Thunderstorms (image below courtesy tropicaltidbits.com):

NAM_Thursday_Storms

  • A brief reprieve from the heat is likely over the upcoming weekend as a trough (dip in the jet stream) rides across the Northeast (image below courtesy tropicaltidbits.com).
  • The relief will be delivered via a cold front that should slide through the DC Area on Friday afternoon/evening touching off another round of Thunderstorms (storms could also reach severe limits).

GEFS_Thu_Sun

 

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