Eighty years and one week ago at 1:01 p.m., the Great Tri-State Tornado
of March 18, 1925, started its uninterrupted 219-mile trek from
its origin in the Missouri Ozarks. At an average speed of between 56 and
an astounding 73 miles per hour (more than twice the
speed of an average tornado), the Great Tri-State Tornado tore across
Missouri, southern Illinois, and finally lifted three and one-half hours
later in southwestern Indiana. The wall of violent blackness killed
695 people, injured 2027 people, destroyed 15,000 homes, and damaged
more than164 square miles (almost 50 times the
average tornado). Many schools were demolished, killing large numbers
of children. For example, 33 children died in the school in DeSoto, Illinois.
The path of the tornado on average was three-fourths mile wide,
and at times one mile wide. The Great Tri-State set tornado records against
which meteorologists still measure tornados for length of track, forward
speed, deaths, and duration.

Path of Tri-State Tornado, March 18, 1925
Source: http://www.atmos.albany.edu/student/tomjr/tristatetrack.gif.
The Great Tri-State Tornado struck mining town after mining town, prosperous
farm after prosperous farm, and railroad town after railroad town, including
Murphysboro, Illinois (1925 population: 12,000, tornado deaths: 234) where
geography professor and author of “The Forgotten Storm” (2002),
Wallace Akin, experienced its effects first-hand as a two-year old whisked
up into his mother’s arms. Akin writes, “At the beginning
of the new millennium, in this last chapter of my life, I seem to have
come full circle, caught up once more in the awesome power of that great
event which so shaped my life. I return to the scenes of my early years,
growing up in the aftermath of the great storm that is all but forgotten
even by many professional meteorologists. It is my privilege to share
its story and perhaps to help return it to its rightful place as one of
the nation’s great natural disasters.” (p. xiii)

Destruction left by the Tri-State Tornado in Murphysboro, Illinois
Source: http://utvols.8m.com/1925.html.
Most scientists concur that along most of its path, the Tri-State Tornado
met the test of an F5 rating, meaning that estimated
wind speeds of 261-318 mph caused “incredible damage,” such
as obliterating well-constructed houses and leaving only foundations.
The late Professor T. Theodore Fujita of the University of Chicago developed
The Fujita Scale of Tornado Destruction (F-scale), which the National
Weather Service and weather services worldwide use as the basis for evaluating
storm damage from tornadoes and downbursts. The F-scale is not perfect
because, according to Akin, “it does not take into account variations
in building construction when the damage is assessed, not does it measure
storms that cause no structural damage; thus, it is not applicable to
tornadoes or downbursts in open country.” (p. xv)

Fujita Tornado Scale Table
http://kyclim.wku.edu/BRADD/tornadoes/tornadoes.html Accessed July 6, 2005 .
Akin recounts many first-hand stories of what people experienced as the
tornado ripped into town, as he remembered the stories told and retold
while growing up in Murphysboro, all the while attending the schools that
had been rebuilt after being demolished by the tornado. Here is a typical
story related by Akin: “Alice Temure, 70, a paralytic, lived on
the outskirts of Gorham. She was lying in her bed when the weather became
ominous. Sitting nearby, her husband and their son, Paul, both peered
out the bedroom window past the great elm tree in the yard, commenting
on the increasing darkness. From this window they had a panoramic view
of a hill and, across from it, a cornfield.
“ Alice recalled her terror: ‘I could feel the tornado lift
the house. It must have been raised ten feet form the ground and was whirled
around the big elm tree. The branches stuck through the windows. Then
there was a great splintering and cracking and one wall fell outward.
I felt myself going through the air. I was stunned and when I came to
I was lying in the cornfield across the hill. There is a little creek
there and my feet were in the water. At my side was my husband. A great
[railroad] spike had been driven through his lip. ‘I’m dying
Alice, dear,’ he said to me. And we laid there and prayed together.’
“Paul, who had managed to hold on inside the house, extracted himself
from the wreckage, and set off in search of his parents. He found them
across the hill where the storm had deposited them. Kneeling down, he
carefully lifted his injured father and carried him back to the yard,
leaning him against the elm tree. Then he returned for his mother and
carried her back, but by the time he returned to his father’s side
he was dead.” (p. 45)
The tornado came and went quickly from each town in its path, leaving
destruction behind as it carried debris forward to the next town. For
example, West Frankfort, the most important mining and manufacturing center
in southern Illinois in 1925, had a population of approximately 18,000.
Its major employers operated two of the largest underground coal mines
in the US: New Orient No. 2 and Old Ben No. 8. Many other large mines
were also in this “Little Egypt” coal belt area. “When
the Tri-State Tornado struck West Frankfort, 800 miners labored underground
at New Orient No. 2….The first inkling of trouble for miners underground
came with a violent rush of air down the ventilating shaft that blew its
doors open and collapsed its timbers. Such a blast of air indicated the
possibility of an explosion in some part of the mine. Then the lights
went out, machinery ground to a halt, and the hoist ceased to rise and
descend in the main shaft. …The bottom boss, taking no chances,
organized an orderly escape. Miners lit the carbide (acetylene) lamps
attached to their hats and hurriedly lined up in single file near the
air shaft where zigzag escape ladders provided access to the surface and,
one by one, all 800 climbed to the top. It took about sixty minutes.” (p.
88)
The tornado had reduced to kindling more than 500 miners’ homes
near the mine, not sparing the women and children in them. “They
ran toward their wrecked homes and set to work digging out the dead and
wounded. Since these neighborhoods had no paved streets a downpour that
had followed the storm created an almost impassable mire; rescuers slipped
and slid as they carried out the dead and wounded on improvised stretchers.” (p.
90)
“Although a complete medical team had climbed down at West Frankfort
prepared for work, they discovered local doctors coping so well there
was need for all of them, and some left to help out in nearby small towns.
Local hospitals were filled, and churches, service organizations, and
many homes had become improvised clinics. West Frankfort had turned chaos
into order. Policemen patrolled and the dead lay in rows awaiting identification.” (p.
92)
One reporter from the St. Louis-Dispatch made it to West Frankfort by
11:15 pm (some 8 hours after the tornado struck) and described the scene
he witnessed this way:
“On the streets of the city, strangely silent crowds shifted about.
Ambulances shot back and forth with noisy bells. The congestion of the
wounded in their resting places, and activities of willing volunteers
increased the confusion…There was no outcry from the sufferers.
Here and there one moaned in agony. ..Men with fractured skulls lay quiet.
Strangers comforted children with broken limbs. Maimed women sought news
of their babies. Youths who could move a bit begged cigarettes. Those
who needed major operations but had to wait their turn submitted gladly
to opiates as physicians reached them. Everywhere the glare of electric
lights and the stir of people kept the wounded awake.” (p. 93)

Engineering committee examining a 1X5 inch board
which was driven through
a 2X6 plank in southern Illinois.
Source: http://epod.usra.edu/archive/images/main_wea00239.jpg
The most important factors that made the tornado so destructive to life
and property, according to a report by a team of structural engineers
in 1925 were:
1. Lack of any tornado forecast.
2. Lack of immediate warning that a massive tornado moved in their direction.
3. Exceptionally high speed of forward movement.
4. Unusually large storm.
5. Lack of adequate shelter.
6. Lack of tornado appearance.
7. Poor construction techniques. (pp. 128-130)
Of these seven, the first two are considered the most important.
1. Lack of any tornado forecast.
Why did the US Weather Bureau (forerunner of the National Weather Bureau)
in St. Louis and Chicago not include a tornado forecast? Akins writes: “The
answer lies in the official regulations of the time. In 1925, the US Weather
Bureau forbade government meteorologists to use ‘tornado’ in
forecasts or in official reports, fearing such scare words might alarm
citizens and curtail the general flow of commerce. The word ‘tornado’ appeared
only in summaries published months after the severe weather occurred.
“This restriction had not always been in effect. As early as the
1880s successful tornado forecasting was evolving under the direction
of Lieutenant John Park Finely of the US Army Signal Corps, but General
Adolphus Greely, new chief of the Corps, put an end to this research in
1887 although he realized the danger from tornadoes. He banned the word ‘tornado’ in
public forecasts, reasoning that the exact point of touchdown could not
be predicted (even today exact predictions are not possible)….Writing
in the Weather Bureau’s Monthly Weather Review, in April of 1925,
the editor summarized the prevailing ignorance: ‘it must be reluctantly
admitted that there is little hope that the actual conditions that initiate
a tornado vortex will ever be experimentally observed.’” (p.
4)
When was the ban on tornado forecasts finally made by the US Weather
Bureau? It occurred almost exactly 57 years ago on March 25, 1948, when
two scientists, Major Ernest Fawbush and Captain Robert Miller, assigned
to Tinker Air Force Base near Oklahoma City, made their remarkable forecast
of an imminent tornado after years of studying Finley’s approach
and weather conditions preceding and accompanying tornadoes.
Akin writes that “[i]f my family had received an early tornado
warning that day in 1925, we might have been spared some hardship. His
father (40 years old at the time), who owned an automobile dealership
and repair shop, sustained a near-fatal injury that left him in a coma
for several weeks at Barnes Hospital in St .Louis to which he had been
transported by train the first day after the tornado. He recovered completely.
2. Lack of immediate warning that a massive tornado moved in
their direction.
No organized warning system was in place to link communities to one another
so that people could have sought shelter. Phones and telegraph, but no
warning system, existed. People first became aware of the tornado when
it was upon them. Many women and men were struck and killed or injured
by huge numbers of missiles churned up into the air by the tornado, as
they ran out of homes and stores to retrieve children at school.
Editor’s Note: The Great Tri-State Tornado of
1925 increased awareness of the need for an integrated warning system
for tornadoes and other severe weather. Storm spotters and communications
technology helped move this along during the next two decades. But not
until 1948 did tornado forecasting begin again (see Biot # 192 “Events
Leading to the First US Tornado Forecast on March 1948” at: http://www.semp.us/biots/biot_192.html.)
Additional source:
The National Oceanic and Atmospheric Administration (NOAA), the parent
body of the National Weather Service, has a great website devoted entirely
to the Tri-State Tornado of 1925, available at: http://www.crh.noaa.gov/pah/1925/.