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United States Tornadoes

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Author: Mark Ellinwood

Operational Meteorologist at WeatherBug (Earth Networks). See full bio.
Tornado Threat Forecast: April 30-May 6, 2015

Tornado Threat Forecast: April 30-May 6, 2015

Pretty quiet through the weekend. Tornado threats start to reappear over the central and southern Plains at the start of…
Mark Ellinwood
Tornado Threat Forecast: April 27-May 3, 2015

Tornado Threat Forecast: April 27-May 3, 2015

"Quiet" will be the theme for most of the next seven days, with an upper-level ridge shutting down storm activity…
Mark Ellinwood
Tornado Threat Forecast: April 23-29, 2015

Tornado Threat Forecast: April 23-29, 2015

The tornado potential spikes Friday and Saturday across the South, with another period of somewhat-favorable conditions in the southern Plains…
Mark Ellinwood
Tornado Threat Forecast: April 21-27, 2015

Tornado Threat Forecast: April 21-27, 2015

The South faces an onslaught of daily tornado threats Wednesday through early next week. A quieter pattern tries to take…
Mark Ellinwood
Tornado Threat Forecast: April 16-22, 2015

Tornado Threat Forecast: April 16-22, 2015

The south-central U.S. will have daily threats for tornadoes through next Wednesday, but the day-to-day tornado potential remains fairly limited.
Mark Ellinwood
Tornado Threat Forecast: April 13-19, 2015

Tornado Threat Forecast: April 13-19, 2015

A cut-off low over the Plains in the back half of the week keeps the forecast problematic, both in tornado…
Mark Ellinwood
Tornado Threat Forecast: April 9-15, 2015

Tornado Threat Forecast: April 9-15, 2015

Today shows the biggest potential for tornadoes through the next 7 days. Lower threats daily through Wednesday, mainly focusing on…
Mark Ellinwood
Tornado Threat Forecast: April 6-12, 2015

Tornado Threat Forecast: April 6-12, 2015

The central and southern Plains into the Mississippi Valley are most at risk from tornadoes during the period.
Mark Ellinwood
How to forecast tornadoes: Looking for what could go wrong

How to forecast tornadoes: Looking for what could go wrong

These little details can turn a potential tornado outbreak into a run-of-the-mill line of storms, or even a "blue sky…
Mark Ellinwood
Spring 2015 seasonal tornado outlook

Spring 2015 seasonal tornado outlook

Will spring 2015 be an active one for tornadoes? The key indicators are mixed, but they do offer some clues.
Mark Ellinwood
How to forecast tornadoes: Search for boundaries and gradients

How to forecast tornadoes: Search for boundaries and gradients

You've got heat, moisture and a forcing mechanism. Add in a boundary to up the odds for twisters.
Mark Ellinwood
How to forecast tornadoes: Identifying and understanding the basic ingredients

How to forecast tornadoes: Identifying and understanding the basic ingredients

Several things need to come together for tornadoes to even have a chance to form. In the first of a…
Mark Ellinwood

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