May 24

Quick Update Regarding Today’s Severe Weather

Shortly after I posted my first article, the SPC moved the risk areas. Douglas County is now included in the slight risk area so this warrants an update for us.

spcgeneral_05242016_1630Z

General risk area. Yellow areas are slight risk, brown are enhanced risk. This area has been moved further West with the latest update and now included most of Douglas County including Castle Rock and the Palmer Divide.

Updated Tornado Risk Areas

spcday1_05242016_torrisk1630Z

Tornado Risk

spcday1_05242016_hailrisk1630Z

Hail Risk

 

 

 

 

 

 

 

 

Keep in mind, the upgrade of risk means chances are a bit higher for severe weather, not all areas will see it. Most models were not showing a lot along the Palmer Divide this morning and have shifted a bit but still don’t show a huge risk as of right now.

A Note About Tornadoes and the Denver Cyclone

Credit: http://www.theweatherprediction.com/

Credit: http://www.theweatherprediction.com/

On days where the SPC specifically mentions the “Denver Cyclone” folks in our area need to be aware. Storms that find this boundary and become severe tend to produce tornadoes. This boundary doesn’t always match the image above, it can set up further North, South, East or West, but generally I watch a few areas closely on days like this:

  • Palmer Divide including a line from  Castle Rock, Franktown, Elizabeth, Kiowa and Limon.
  • I-76 corridor including areas around DIA, Brush, Fort Morgan, Sterling and Julesburg.

If you are in these areas today, keep a close eye for severe storms with the potential for tornadoes.

Timing

  • Storms look to  initiate between 1-2PM
  • Severe storms look most likely between 2-6PM today

Locations

  • Higher Risk
    • I-76 corridor
  • Lower Risk (but still noteable risk)
    • Palmer Divide

Preparedness Actions

  • Storms will form quickly, please keep an eye out for alerts
  • Large hail is the primary threat, take action to protect property (cars, plants, pets, etc…)
  • There is a slight risk of tornadoes along the Palmer Divide, pay close attention for warnings and be ready to seek shelter
  • There is a higher risk for tornadoes Northeast of Denver, be prepared to move quickly to a shelter.

 

Stay tuned as we will have updates through the afternoon. Stay safe and weather aware!

 

John R. Braddock
Storm Chaser/ Amateur Meteorologist at Mountain Wave Weather
John R. Braddock is a NOAA/NWS Certified Storm Chaser and Amateur Meteorologist living in Castle Rock, Colorado. A graduate of Colorado State University with a Bachelor's in Computer Science and a Colorado native, he specializes in short range forecasting, severe weather and mountain weather dynamics.

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