A "Bulging Lobe" Of Polar Vortex Madness Headed For U.S. East

[rangerrebew]

A "Bulging Lobe" Of Polar Vortex Madness Headed For U.S. East
 
by Tyler Durden
Friday, Apr 17, 2026 - 03:25 PM

Mother Nature across the Mid-Atlantic can only be described by the Katy Perry lyric, “You’re hot, then you’re cold,” as a meteorologist warns that a "tropospheric polar vortex" will sweep across the Lower 48 this weekend into early next week, abruptly ending the summer-like conditions in Washington, D.C.

"A bulging lobe of the tropospheric 'polar vortex' will be tracking through the Lower 48, bringing a cold front and much cooler air to the Eastern U.S.," meteorologist Ryan Maue wrote on X.

He added, "We'll wave goodbye to the nearly unprecedented mid-April heat wave."


Folks in the Capitol Beltway will see a 40°F swing in high temperatures from yesterday's 93°F to Monday's 52°F, according to Bloomberg data.

Wild swing for DC high temps plus the forecast.

https://www.zerohedge.com/weather/bulging-lobe-polar-vortex-madness-headed-us-east

[PeteS in CA]

Significant temperature swings are pretty much normal here in north-central California in March/April, and again in September/October. In recent weeks I did a 5K in fairly warm weather, and then a couple of weeks later (last weekend) did an 8K in which the lasy mile and a half was steady rain. I've seen similar swings in late September, one year doing a half in mid-upper 70s, and in another year, doing a 5K, starting at 80F and finishing at 90F, with some doing the half finishing at >100F. Weather swings in spring and fall are ordinary/normal, here.

Are spring and fall weather patterns in the East Coast steady and stable?

[Weird Tolkienish Figure]

Old man winter's wrinkly scrotal sac just doesn't want to leave our faces for some reason...

[Free Vulcan]

In Iowa we call this Spring.

[MeganC]

In Iowa we call this Spring.

 

[libertybele]

Significant temperature swings are pretty much normal here in north-central California in March/April, and again in September/October. In recent weeks I did a 5K in fairly warm weather, and then a couple of weeks later (last weekend) did an 8K in which the lasy mile and a half was steady rain. I've seen similar swings in late September, one year doing a half in mid-upper 70s, and in another year, doing a 5K, starting at 80F and finishing at 90F, with some doing the half finishing at >100F. Weather swings in spring and fall are ordinary/normal, here.

Are spring and fall weather patterns in the East Coast steady and stable?

The heck with the weather @PeteS in CA  I admire you for doing a 5k and 8k .... that's quite an accomplishment!

[PeteS in CA]

The heck with the weather @PeteS in CA  I admire you for doing a 5k and 8k .... that's quite an accomplishment!

Thanks! I walk, not run, but try to keep active. I mainly did the 8k (~5 miles) because there's a fairly steep hill on the course, up ~220 feet over half a mile and the same down over half a mile. Also it had rained, so it was muddy and I had to be really careful. Ironically, I was the last finisher of the 8K distance and got first place in my age group.

[DCPatriot]

32 degrees overnight and this morning in D.C..

My burgundy maple tree's fully developed leaves were all shriveled up...first time I've seen this.