Near Lexington Nebraska, the chase team intercepts a rotating storm and views a wall cloud.

Another view of the rotating wall cloud near Lexington Nebraska.

Chase team stops to view a severe storm north of I-80 in Nebraska.

A lowering develops under the rain-free base of a severe storm near the Kansas-Colorado border. Tornado warning were underway shortly after this photo was taken.

The chase team scans a developing supercell thunderstorm in eastern Colorado.

The 2005 chase team after 2 exhausting days of chasing...and prior to 2 exhausting driving days back home.

Chase vehicle 1, mud-splattered after a chase in Kit Carson County Colorado.

The rapid-scan DOW in Goodland Kansas, with early morning convection firing in the background.

The TIV (Tornado Intercept Vehicle) which accompanied the DOW's in 2005. Under the metal shell is a Ford F-450 diesel pick-up chassis and drivetrain.

A wall cloud in Yuma County Colorado. One of several the chase team saw on the afternoon of May 24.

The best storm of 2005: the tornado-warned storm in Yuma County Colorado.

The chasers continue watching the development of a wall cloud/possible tornado in Yuma County Colorado. 

A spectacular aquamarine wall cloud. Warnings were underway for this storm.

An ominous shelf cloud races toward the vans. Hail and high winds accompanied this storm, which forced the chase team into a game of tag via the road network in eastern Colorado.

Outflow-dominant features of a supercell which is congealing into a squall line.