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United States Tornadoes

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Author: Mark Ellinwood

Operational Meteorologist at WeatherBug (Earth Networks). See full bio.
Spring 2023 seasonal tornado outlook

Spring 2023 seasonal tornado outlook

The active start of the year could be a sign, but a mid-March pattern change could limit the upside potential.
Mark Ellinwood
Spring 2022 seasonal tornado outlook

Spring 2022 seasonal tornado outlook

The medium range seems favorable for an active tornado period in March, but long-term signals are murkier. A deep dive…
Mark Ellinwood
Spring 2021 seasonal tornado outlook

Spring 2021 seasonal tornado outlook

There's a mixed bag of signals for tornado activity over the next few months.
Mark Ellinwood
Tornado Threat Forecast: April 22-23, 2020

Tornado Threat Forecast: April 22-23, 2020

The active severe weather pattern across the South continues as a disturbance progresses from the southern Plains into the Southeast…
Mark Ellinwood
Tornado Threat Forecast: April 19-20, 2020

Tornado Threat Forecast: April 19-20, 2020

Another tornado event is expected today into Monday.
Mark Ellinwood
Spring 2020 seasonal tornado outlook

Spring 2020 seasonal tornado outlook

It's looking like an above normal season, but as usual there are caveats.
Mark Ellinwood
Chasecation 2019 Day 13 – We Outta Here

Chasecation 2019 Day 13 – We Outta Here

Yesterday was another frustrating day as early storms in the Texas Panhandle ruined the potentially tornadic environment in the whole…
Mark Ellinwood
Chasecation 2019 Day 12 – Sunset Saves The Day

Chasecation 2019 Day 12 – Sunset Saves The Day

The frustration with storms on this stretch of days continues to grow as the overall storm mode remains messy, with…
Mark Ellinwood
Chasecation 2019 Day 11 – Mess In Texas

Chasecation 2019 Day 11 – Mess In Texas

Another day of a good target with a somewhat poor execution.
Mark Ellinwood
Chasecation 2019 Day 10 – Murky Cone In Oklahoma

Chasecation 2019 Day 10 – Murky Cone In Oklahoma

A low-contrast tornado behind a line of trees was our reward for hours of sitting and waiting for the storms…
Mark Ellinwood
Chasecation 2019 Day 9 – Watching For Flooding

Chasecation 2019 Day 9 – Watching For Flooding

This year is providing many new obstacles to our chasing style.
Mark Ellinwood
Chasecation 2019 Day 8 – Four Storms, Zero Tornadoes

Chasecation 2019 Day 8 – Four Storms, Zero Tornadoes

Despite the prolific supercell activity, we did not see any tornadoes.
Mark Ellinwood

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  • How to forecast tornadoes: Search for boundaries and gradientsHow to forecast tornadoes: Search for boundaries and gradientsFebruary 10, 2015
  • Sounding and case archive of famous tornadoes and selected severe weather eventsSounding and case archive of famous tornadoes and selected severe weather eventsMarch 22, 2021

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