UK alert and threat levels — live widget
National terrorism threat level
MI5 / JTAC via GOV.UKSevere
LowCritical
Threat to the UK from terrorism, set by JTAC
JTAC / MI5 · 5 levelsset 04 Mar 2015 · 141 months oldOfficial page Northern Ireland-related terrorism threat level
MI5 / JTAC via GOV.UKSubstantial
LowCritical
Threat to Northern Ireland from NI-related terrorism, set by MI5
JTAC / MI5 · 5 levelsset 04 Mar 2015 · 141 months oldOfficial page Severe weather warnings in force
Met OfficeNone in force
None in forceRed
No Met Office warnings are currently in force for the UK
Met Office · yellow / amber / redset 18 Oct 2026 · 25h oldOfficial page Flood alerts and warnings in force
Environment AgencyNone in force
None in forceSevere flood warning
0 severe flood warnings · 0 flood warnings · 0 flood alerts
Environment Agency · 3 levelsset 18 Oct 2026 · 25h oldOfficial page Weather-health alert level
UKHSA / Met OfficeNot published
GreenRed
Heat and cold health alerting system, England
UKHSA · green / yellow / amber / redno date publishedOfficial page Air pollution index, highest forecast
Defra3 · Low
Low (1-3)Very high (10)
Highest index forecast today across 5886 Defra forecast sites
Defra / COMEAP · DAQI 1-10set 18 Oct 2026 · 25h oldOfficial page Live from official UK sources · pulled 06:20:05 · UK National Data Register