Tornado Threat Forecast: May 14-20, 2015

Another weekend, another potential tornado outbreak in the Plains. Seems to be a weekly thing this spring. Having a near normal April and May tornado count seems foreign compared to the past few years.

So the next forecast on Monday will be the last one for a few weeks. Why? Because I/we are going STORM CHASING WOOOOOOOO! Like previous years, I will be putting up daily posts about our chasing while we are on the road. More details (including how to follow the group’s chases) coming next week.

1-3 Day

Thursday

Western Texas — TORNADO RANGE: 0-3 — CONFIDENCE: Normal
Expected Tornado Hotspot: None
Pros: Moderate instability, good directional shear.
Cons: Little upper-level forcing, fairly weak speed shear, potential issues with high LCLs.

Friday

Plains — TORNADO RANGE: 8-20 — CONFIDENCE: Normal
Expected Tornado Hotspot: Southern South Dakota, Nebraska, northern Kansas
Pros: Good/excellent low-level shear, decent/good speed shear, moderate instability.
Cons: Best upper-level forcing still too far west, potential issues with morning clouds/convection contaminating the atmosphere, mid-level winds could be stronger.

Saturday

Central and southern Plains, southwestern Midwest — TORNADO RANGE: 16-40 — CONFIDENCE: Normal
Expected Tornado Hotspot: Southern Kansas, Oklahoma, northern Texas
Pros: Moderate instability, decent/good directional shear, good speed shear, good upper-level forcing.
Cons: Winds start to back in the mid-to-upper levels in Nebraska and Kansas, potential issues with morning clouds/convection contaminating the atmosphere.

4-7 Day

Sunday

Midwest, Miss. Valley, southeastern Plains — TORNADO RANGE: 8-20 — CONFIDENCE: Normal
Expected Tornado Hotspot: Midwest
Pros: Decent/good speed and directional shear, moderate instability, decent upper-level forcing in the Midwest.
Cons: Morning clouds/convection could contaminate the atmosphere, cold front could case storms to go linear more quickly, very little upper-level forcing in the southern half of the risk area, height falls are fairly weak.

Monday

No tornadoes expected.

Tuesday

Southern Plains— TORNADO RANGE: 1-4 — CONFIDENCE: Low
Expected Tornado Hotspot: Southern High Plains
Pros: Moderate instability, good directional shear, decent speed shear in the High Plains, a little upper-level forcing in the High Plains.
Cons: Potential issues with morning clouds/convection, weak speed shear and little to no upper-level forcing in the eastern areas, neutral/rising heights.

Wednesday

Southern Plains — TORNADO RANGE: 2-7 — CONFIDENCE: Low
Expected Tornado Hotspot: Southern Kansas, Oklahoma
Pros: Good directional shear, decent speed shear in the northern areas, moderate instability, a bit of upper-level dynamics in the northern areas.
Cons: Weak speed shear and little to no upper-level dynamics in the southern areas, potential timing and orientation issues with the upper-level shortwave.

The following two tabs change content below.
Operational Meteorologist at WeatherBug (Earth Networks). See full bio.

Latest posts by Mark Ellinwood (see all)

Mark Ellinwood

Operational Meteorologist at WeatherBug (Earth Networks). See full bio.

Share
Published by
Mark Ellinwood

Recent Posts

Girls Who Chase: Empowering Female Storm Chasers

In a field historically dominated by men, Jen Walton has emerged as a transformative figure…

4 months ago

The Storm Doctor: Dr. Jason Persoff

Jason Persoff, MD, SFHM, is recognized globally for his expertise in storm chasing. He earned…

9 months ago

Top tornado videos of 2023

Tornado numbers were near or above average. A chase season peak in June provided numerous…

11 months ago

March 31, 2023 tornado outbreak videos

One of the more widespread tornado outbreaks in years, from Iowa and Illinois to Arkansas.

2 years ago

Spring 2023 seasonal tornado outlook

The active start of the year could be a sign, but a mid-March pattern change…

2 years ago

Top tornado videos of 2022

A near average year for tornadoes across the country, with a cool season bend. We've…

2 years ago