From: https://check-for-flooding.service.gov.uk/target-area/062WAF38BrentBks
Flood alert for Silk Stream and the Deans, Edgware, Dollis, Mutton and Wealdstone Brooks
We have issued a Flood Alert. Rain is forecast to affect London on Monday night, 4 October into Tuesday morning, 5 October. It is currently unclear which areas will experience the heaviest rain. If the heaviest rain affects the Hendon, Wembley, Harrow, Wealdstone, Edgware or Stanmore areas there is the possibility that rivers could overtop their banks. Flooding to low lying land, roads and riverside gardens is possible on Monday night. Surface water flooding may also affect these areas. We recommend you monitor local water levels and weather conditions. Consider putting your flood plan into action. You should avoid walking, cycling or driving through flood water. We are monitoring rainfall and river levels and are checking rivers for blockages. We will update this message at 10am on Tuesday morning or earlier if the situation changes.
UPDATE
The risk of flooding from the Silk Stream and the Deans, Edgware,
Dollis, Mutton and Wealdstone Brooks has now reduced and levels have
fallen below levels of concern. No further flooding to fields and roads
is expected, however there may be standing water seen for several days