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June 2020 England tornado outbreak
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Date of tornado outbreak: June 29 - 30, 2020
Duration1: 40 hours
Maximum rated tornado2: T6
Tornadoes caused: 27
Damages: £604.2 million
Injuries 250
Fatalities: 31
Areas affected: England

1Time from first tornado to last tornado
2Most severe tornado damage; see TORRO

The June 2020 England tornado outbreak was the biggest European tornado outbreak of its time, with 27 tornadoes being confirmed over a 40 hour time period, in the central and southern areas of England. Total damages exceeded £600 million, and 31 deaths were confirmed due to the outbreak, with 250 others injured, of which 21 were serious cases. The T6/F3 that touched down was the most powerful officially recorded British tornado on record for its time, as well as the costliest and deadliest UK tornado on record.


Meteorological synopsis

Confirmed
Total
Confirmed
T0
Confirmed
T1
Confirmed
T2
Confirmed
T3
Confirmed
T4
Confirmed
T5
Confirmed
T6
Confirmed
T7
Confirmed
T8
Confirmed
T9
Confirmed
T10
Confirmed
T11
27 5 7 5 4 3 2 1 0 0 0 0 0


Confirmed
Total
Confirmed
F0
Confirmed
F1
Confirmed
F2
Confirmed
F3
Confirmed
F4
Confirmed
F5
27 11 9 5 1 0 0


An area of convection, which had briefly become Tropical Depression Two over the Azores, began to reorganize as a squall line on June 27th, 30 hours after it degenerated to a remnant area of low pressure, about midway between England and the Azores Islands.

Due to favourable wind shear values in the local area, the new squall line began to organize, with convective activity once again flaring over the low pressure area, and supercellular storms began forming within the line as it moved towards the English Channel coast, and as a result, TORRO issued a severe thunderstorm warning for the immediately expected impact area.

With the warm, moist tropical air still contained within the storms convection, as well as the higher shear values near the English coast, the low began to produce severe thunderstorms, and the TORRO warning proved to be correct, and due to the presence of supercells, TORRO also issued a tornado watch for the areas along the potential storms path, with an additional severe thunderstorm watch being posted for the areas near to the England/Wales border as a precaution

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