Friday, April 6, 2018

10 comments:
Like a dagger in the heart of Spring
  • THIS IS NOT A PREVIEW OF STRANGER THINGS SEASON 3, IT'S REAL.
  • RARE APRIL SNOW TO AFFECT SOUTHERN MID-ATLANTIC SATURDAY
  • WEEKEND CONDITIONS TO RESEMBLE JANUARY, NOT APRIL 
  • MAPS: Below are projected surface maps for 8 AM Saturday.

THE SITUATION
  • WHAT: A reinforcing Arctic air mass will build into the region starting Friday night as waves of low pressure move northeast from the Tennessee Valley along the Arctic front.
  • WHEN: Early Saturday into daybreak, rain will mix with and change to snow from north to south, eventually overspreading the region by mid-morning.
  • HOW: Despite a strong April sun angle, high snowfall rates and dropping temperatures by mid-morning Saturday may produce light accumulations grassy & untreated surfaces. Some refreezing is likely as sub 30 F temps are expected Saturday night into Sunday AM.  
  • OPTICS: Liquid equivalents of 0.25" to 0.50" from DC to Baltimore and Philly as temperatures are dropping Sat AM indicates brief periods of heavy wet snow. It may even look like March 21 for a time, though most roads are likely to remain wet. Still, it's this kind of news that feels like a dagger to the heart of Spring....