Interstate 10 · 10 hPa

Stratosphere

The polar vortex, thirty kilometres up and weeks ahead of the weather. Stratosphere stories ride Interstate 10, after the 10 hPa level where the polar vortex is measured, some 30 kilometres up.

21 in the chronicle

Storyline · Polar Vortex Watch 2026–27Latest

Eyes on stratosphere but any impacts down here will be weeks away if come to fruition

Weather UpdateWednesday, October 28, 2026Dr. Ryan Maue

OCT 26 · Weather Update · Arctic stratosphere · Subscribers
Potential stratospheric polar vortex breakdown in early November would be unprecedented Polar Vortex Watch 2026–27
MAR 19 · Weather Update · Arctic stratosphere
Polar Vortex vs. Heat Dome battle royale underway Polar Vortex Watch 2025–26
MAR 3 · Weather Update · Arctic stratosphere
After week of Spring warmth return to winter into mid-March as polar vortex stretches into Lower 48 Polar Vortex Watch 2025–26
FEB 23 · Winter Weather · Arctic stratosphere
Multiple Arctic blasts likely into early March as extreme polar vortex spins in Canada Polar Vortex Watch 2025–26
JAN 18 · Very Extreme Winter Weather · Arctic stratosphere · Subscribers
Polar Vortex Hammer drops on Midwest and Great Lakes into next weekend with brutal cold + ice storm potential in Texas to Southeast Polar Vortex Watch 2025–26
JAN 16 · Winter Weather · Arctic stratosphere
Next week the Polar Vortex is fully loaded with potential for extremely cold conditions across Midwest and Great Lakes Polar Vortex Watch 2025–26
JAN 9 · Winter Weather · Arctic stratosphere · Subscribers
Hudson Bay polar vortex opens for business later next week Polar Vortex Watch 2025–26
DEC 29 · Winter Weather · Arctic stratosphere
Hudson Bay Polar Vortex Company back in business with much colder air week ahead Polar Vortex Watch 2025–26
NOV 17 · Winter Weather · Arctic stratosphere · Subscribers
Watching the polar vortex into early December but not sold on most extreme cold (yet) Polar Vortex Watch 2025–26
NOV 6 · Weather Update · Arctic stratosphere
Polar vortex hype as first major cold blast poised to affect Eastern U.S Polar Vortex Watch 2025–26
NOV 5 · Weather Update · Arctic stratosphere · Subscribers
Major Arctic blast linked to the Polar Vortex will dump abnormally cold air into Eastern US Polar Vortex Watch 2025–26
FEB 21 · Weather Update · Arctic stratosphere · Subscribers
Watching the polar vortex spin in Canada for the next 2-weeks Polar Vortex Watch 2024–25
FEB 19 · Weather Update · Arctic stratosphere · Subscribers
Warmer next week but polar vortex looms large Polar Vortex Watch 2024–25
FEB 13 · Winter Weather · Arctic stratosphere · Subscribers
Potential Record Cold from Polar Vortex Next Week Polar Vortex Watch 2024–25
FEB 12 · Winter Weather · Arctic stratosphere · Subscribers
Extreme cold from Polar Vortex events next week Polar Vortex Watch 2024–25
JAN 17 · Winter Weather · Arctic stratosphere · Subscribers
Nice blanket of snowfall for the Mid-Atlantic and Northeast prior to Polar Vortex Polar Vortex Watch 2024–25
JAN 16 · Update · Arctic stratosphere
Yes, this is the Polar Vortex Polar Vortex Watch 2024–25
JAN 6 · Update · Arctic stratosphere
Blockbuster Blizzard and Polar Vortex Watch Polar Vortex Watch 2023–24
JAN 5 · Update · Arctic stratosphere
On Polar Vortex watch Polar Vortex Watch 2023–24
JAN 4 · East Coast Storm · Arctic stratosphere
First winter storm in a long time for the Northeast then the Polar Vortex Polar Vortex Watch 2023–24