The crew’s route took them across the path of the storm.
A map of the storm chasers' route which began in Treynor, Iowa at 1:08pm, headed south, then east arriving at the tornado's start point southwest of Cornina, Iowa about half an hour before the tornado began at 2:57pm CST. The crew then raced north, turned west and hovered near the tornado's path around the end of its journey at 3:43pm.
Greenfield
3:30pm
3:43pm
2:57pm
Crew’s location when tornado ends
Crew’s location when tornado begins
5:00pm
5:30pm
Corning
2:30pm
Greenfield tornado
2:57-3:43pm
IOWA
20 miles
Greenfield
3:43pm
Crew’s location when tornado ends
2:57pm
Crew’s location when tornado begins
6:00pm
Corning
Greenfield tornado
2:57-3:43pm
IOWA
20 miles
Greenfield
3:30pm
3:43pm
Treynor
2:57pm
crew’s location when tornado endsv
Crew’s location when tornado begins
1:08pm
Crew departs
5:30pm
1:30pm
6:00pm
Corning
2:30pm
2:00pm
Greenfield tornado
2:57-3:43pm
IOWA
20 miles
Greenfield
3:30pm
3:43pm
Treynor
Crew’s location when tornado ends
2:57pm
1:08pm
Crew’s location when tornado begins
Crew departs
5:30pm
1:30pm
6:00pm
Corning
2:30pm
2:00pm
Greenfield tornado
2:57-3:43pm
IOWA
20 miles
Greenfield
3:43pm
Crew’s location when tornado ends
2:57pm
3:30pm
Treynor
Crew’s location when
tornado begins
1:08pm
5:00pm
Crew departs
5:30pm
1:30pm
6:00pm
Corning
2:30pm
2:00pm
Greenfield tornado
2:57-3:43pm
IOWA
20 miles