Royal Navy to test nuclear alarm at Portsmouth Naval Base – here's when it will sound

THE Royal Navy will be testing a nuclear alarm but residents are being reminded that it is ‘nothing to worry about’.
By Matthew Mohan-Hickson
Published 27th Feb 2019, 08:13 BST
Updated 27th Feb 2019, 09:20 BST
A nuclear alarm will be tested in Portsmouth this morningA nuclear alarm will be tested in Portsmouth this morning
A nuclear alarm will be tested in Portsmouth this morning

Portsmouth naval base will be sounding the two-tone nuclear alarm at 9.30am today as part of a routine check. 

Residents are being warned that it is just ‘standard practice’ and not be alarmed if they are in or around the base and hear it going off. 

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HMNB Portsmouth tweeted: ‘To anyone in and around #Portsmouth Naval Base: There will be a routine test of the two-tone nuclear alarm at 0930 today.

‘Nothing to worry about - just standard practice! #behindthewall @RoyalNavy.’ 

The alarm will sound for one minute but residents who hear it are being reminded that they need not worry. 

Portsmouth naval base tests the alarm several times a year in February, June and October by agreement with various local authorities.