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The public record for one day, one state

What happened in Missouri on April 19, 2011: hail, wind and tornadoes on record

The public federal storm record holds 330 hail reports, 75 wind reports and 22 tornado reports for April 19, 2011 filed under Missouri. The largest hail measured by a person or an instrument is 4.50″, PIKE, MO. The strongest measured wind is 90 mph, CAPE GIRARDEAU, MO. The day's hail was carried by 3 independent sources.

427

Reports on record, hail, wind and tornado

330

Hail reports, all sources

4.50in

Largest hail measured on the ground

3

Independent sources carrying the hail

Where it fell

The counties the day's reports were filed under in Missouri, busiest first, as the source filed them. The size beside each is the largest hail filed there.

  1. ST. LOUIS 2.00″
    • 52 hail
    • 5 wind
  2. ST. CHARLES 2.75″
    • 45 hail
    • 3 wind
  3. PIKE 4.50″
    • 12 hail
    • 9 tornado
  4. FRANKLIN 1.75″
    • 16 hail
  5. HOWELL 2.75″
    • 14 hail
  6. LINCOLN 1.75″
    • 12 hail
  7. CALLAWAY 1.00″
    • 11 hail
  8. CAPE GIRARDEAU Not sized
    • 9 wind
    • 2 tornado
  9. GASCONADE 2.00″
    • 9 hail
  10. OZARK 4.50″
    • 9 hail
  11. WAYNE 1.00″
    • 3 hail
    • 5 wind
    • 1 tornado
  12. STONE 1.75″
    • 8 hail

Places in the footprint

Every place in Missouri with a hail report of the day within 10 miles of its centre, by reports. Each links to the place's own hail history; the busiest 40 are listed.

  1. St. Peters 61 reports 2.75″
  2. Weldon Spring 61 reports 2.75″
  3. Maryland Heights 54 reports 2.00″
  4. Creve Coeur 52 reports 2.00″
  5. Olivette 51 reports 2.00″
  6. Cottleville 49 reports 2.75″
  7. University City 46 reports 2.00″
  8. Lake St. Louis 46 reports 2.75″
  9. Dardenne Prairie 46 reports 2.75″
  10. Ladue 45 reports 2.00″
  11. St. Ann 44 reports 2.00″
  12. Town and Country 44 reports 2.00″
28 more places in the footprint
  1. Manchester 42 reports 2.00″
  2. Overland 42 reports 2.00″
  3. O'Fallon 41 reports 2.75″
  4. St. John 41 reports 2.00″
  5. Berkeley 39 reports 2.00″
  6. Valley Park 39 reports 2.00″
  7. St. Charles 38 reports 2.50″
  8. Wentzville 38 reports 2.75″
  9. Ferguson 38 reports 1.75″
  10. Jennings 38 reports 1.75″
  11. Des Peres 38 reports 2.00″
  12. Crestwood 37 reports 2.00″
  13. Glendale 37 reports 2.00″
  14. Chesterfield 36 reports 1.00″
  15. Kirkwood 36 reports 2.00″
  16. Clayton 34 reports 2.00″
  17. Sunset Hills 34 reports 2.00″
  18. Ballwin 33 reports 2.00″
  19. Brentwood 33 reports 2.00″
  20. Hazelwood 32 reports 1.00″
  21. Webster Groves 32 reports 2.00″
  22. Black Jack 32 reports 1.75″
  23. Shrewsbury 32 reports 2.00″
  24. Bridgeton 31 reports 1.00″
  25. Richmond Heights 31 reports 2.00″
  26. Florissant 29 reports 1.00″
  27. Maplewood 29 reports 2.00″
  28. Bellefontaine Neighbors 25 reports 1.75″

By kind of evidence

A day carried by a ground observation, a radar detection and a warning is attested three independent ways. A day carried by one kind from one source is one report. Each report below keeps its own source.

By kind of evidence: the kinds of evidence on record for the day, the number of independent sources of each, and the reports each contributed.
Evidence Sources Reports
Ground observation ×3 427

Largest hail reports on the day

Measured Detected, not measured

Largest hail reports on the day: time, hail size, evidence and where the report was taken.
Time (UTC) Size Evidence County
23:25 4.50″ Ground observation Not stated
21:35 4.50″ Ground observation PIKE
21:40 4.50″ Ground observation PIKE
21:35 4.50″ Ground observation Not stated
23:25 4.50″ Ground observation OZARK
23:05 2.75″ Ground observation HOWELL
23:11 2.75″ Ground observation OZARK
22:41 2.75″ Ground observation ST. CHARLES

Neighbouring days

The nearest days either side with anything on record in Missouri, the same date in other years, and the hail history the day belongs to.

Previous day with records
April 18, 2011
Next day with records
April 21, 2011
This day in other years
Hail history and data
The next step

The day is on record. The report is what reached the roof.

Everything above is the record for the day: enough to know there was a storm, where it was reported and how large. None of it says what reached one roof.

Run the address and the same archive is searched at the property: each report's distance and bearing from the roof, the measured size, the sources by name, and the federal record each figure came from, in a document that states its own method. Ready in minutes.

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The next day of record

A storm day that enters the record in Missouri can be sent within hours of its page: the date, how many independent sources carried it, and the link to the day.

Storm alerts

The next day like this one, sent for Missouri.

A territory is a set of states, or up to 5 places with 30 miles around each. An alert names the largest hail measured and the largest detected, kept apart; a weekly digest lists the last 7 days every Monday. Nothing is sent until a confirmation link is opened.

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How this page is made

What counted
Every hail report in the archive filed on April 19, 2011 under Missouri, with wind and tornado reports counted beside it and the places ranked by the hail reports within 10 miles of each centre. A hail day is a calendar date with at least one report: four sources describing one storm are one afternoon of hail, not four.
Measured and detected
A report from a person or an instrument is measured. A radar-derived size is a detection and is marked as one, here and in every document we issue. The two are never added together.
Severe
A day counts as severe when its largest report reached 1.00″, the National Weather Service criterion. Smaller hail is still on the record, and still on this page.
What this is not
Reports are counted as the sources filed them, so a storm four sources describe is four reports on this page and one afternoon of hail on a place page. This page is the record for a day; it is not a report on any property, and it states no opinion about one.
Terms used on this page
Storm day, independent source, measured and detected: each term this page uses is defined in the glossary as the report prints it.
The record
Searched from 1996 to today. Compiled 25 August 2026 and rebuilt daily as the archive deepens. Records are reproduced as the federal sources published them. The coverage page states what the record holds, by kind and by year.

About this record

Everything here is reproduced from public federal and volunteer weather records, as the agencies and observer networks that publish them released it. Titan Weather compiles the record; it does not observe the weather, and it is not affiliated with any source it cites.

No archive holds everything. Storms cross places where nobody is standing, instruments and spotters cover some areas better than others, sources revise their records, and recent reports can take weeks to arrive and settle. Where this page shows nothing, nothing was found in the sources searched, within the period and area it states. That is not a finding that no weather occurred.

These pages describe the public record near a place or on a date. They do not establish what reached any particular property, and nothing here is insurance, legal or engineering advice.

Settled or provisional
Settled. The last national segment covering this day settled on August 24, 2026, and the figures above are drawn from the settled record.