When to take a flag down in wind: lower it in time

The flag has been up since the weekend, the forecast has turned, and the listing still says weather resistant. When to take a flag down in wind is a timing decision, made while you can still reach the rope from the ground. A normal flag comes down before a strong breeze becomes a gale. UK flag firms cluster that warning at Beaufort force 6. The Met Office prints that force in knots, not in the miles per hour those firms use.

Read tonight's forecast before dusk, and treat force 6 as the latest ordinary point, not a target to fly up to. Heinrich W. used the Met Office Beaufort scale, procedure notes from Flag Consultancy, Harrison Flagpoles, and Flagpole Company, plus the amazon.co.uk listings in our flag comparisons, in October 2026. No listing states a tested wind speed. This is not a lab test. A qualifying purchase through our links can earn us a commission at no extra cost to you.

In short

Take a normal flag down around Beaufort force 6, which UK flag fitters write as about 30 or 31 mph, and fly nothing once their force 8 line is in the forecast. The Met Office prints force 6 as 22 to 27 knots, not as those mph figures. Weather resistant on a product page is not a gale rating, and a stuck halyard in a rising wind is a reason to stop.

Weather resistant is a listing phrase

Weather resistant is a form of words a seller prints. It does not state a Beaufort number, a miles-per-hour limit, or a test method. In the Borussia Dortmund flag comparison the official viscose hoist flag, about £63.21, is listed outdoor and weather resistant, with a cold wash and no tumble dry. Reviewers report seams and the top hanger torn, sometimes within weeks or a season. Leaving that viscose flag up in a gale is a named mistake in the comparison. The phrase survived on the page beside those reviews. It does not answer the forecast.

The same gap sits on the poles. In the flagpole comparison, no listing states a tested wind speed. A 20 ft title, a 1.2 mm wall, or the words heavy duty are not a wind class. The NQ 20 ft kit at £59.99 includes a halyard and 38 ft of rope, and it states a range of about 8 ft to 20 ft. The rope is what lets you lower the flag. The title height, about 6 metres at full length, is a separate planning question, and it also puts the cloth higher into faster air. A wall pole with no rope leaves you fetching a ladder, which is the wrong tool once the wind is already up.

Light cloth has less to say for itself. A knitted polyester flag with no gsm and no wind figure on the page is the case for the earlier warning, not for waiting until branches are moving. Fabric weight and denier are set out in polyester flag fabric weight. They still do not become a gale rating. If the page is silent, you fly as if the flag has no wind approval, because it has not.

What the Met Office prints

The Met Office Beaufort scale is a sea scale. Force 6, a strong breeze, is 22 to 27 knots and 11 to 14 metres per second. Force 7, a near gale, is 28 to 33 knots. Force 8, a gale, is 34 to 40 knots. The table does not mention flags, flagpoles, or miles per hour. Anyone who quotes "the Met Office says 30 mph" has imported a number from the flag trade. Keep the knots as the Met Office figure and the mph as someone else's rounding.

That gap is small on a quiet day and large when you are deciding whether to leave the house. Twenty-two knots is about 25 mph if you convert, and 27 knots is about 31 mph. The band is a range. Picking one mph and calling it official throws away the range the scale actually prints. Use the knots in the forecast app when the app gives them, and use the land signs when you are standing in the garden: large branches in motion, wires starting to whistle, an umbrella that has become a fight. Flagpole Company offers those signs for what it calls force 6, around 25 to 30 mph. That is a land observation, not the sea table.

Wind at the flag is the wind that matters. Flag Consultancy's care notes and Harrison Flagpoles both say it is windier at the top of the pole than at the ground. A breeze you can walk in at the back door can be the strong breeze the flag is already in. On a fully extended sectional pole that difference is several metres of height. Shorten an adjustable pole before a blow if the forecast is rising and you still intend to fly at all. Do not wait until the top section is humming.

What UK flag fitters tell you to do

Flag Consultancy's flying procedure is the clearest cluster. Over force 6, which that note writes as 30 mph, lower normal flags. A storm flag of about one third the size may replace them through the next band. Above force 8, written as 45 mph, fly no flag until it eases. Harrison Flagpoles uses the same 30 mph and 45 mph split, and adds that damage runs from the flag's life to the pole, from cosmetic marks to structural stress. Flagpole Company says remove the flag, if it is safe to do so, when winds are expected to exceed 30 mph, and do it before the wind reaches the point where lowering itself is unsafe.

A second Flag Consultancy PDF, the care notes, says if winds exceed Beaufort scale 6, which it writes as 31 mph and 27 knots, take the flag down. Twenty-seven knots is the top of the Met Office force 6 band, so that sentence lines up with the knot table and sits slightly apart from the "30 mph" procedure note. Do not pretend the two PDFs are one number. Quote both, and refuse a single official mph. The decision sentence stays the same: the normal flag is down by the time a strong breeze is established, not after the gale has arrived.

Printers of light cloth draw the line earlier. Tristar Printers tells buyers of its knitted polyester to take flags down in winds above Beaufort 4, which they write as 13 to 18 mph, and says life depends on climate and hours flown, with a realistic maximum of about six months for a regularly used flag. A maker note in our hub digest has flags.co.uk at about 25 mph, earlier than the 30 mph procedure line. The sources disagree. The cautious reading, when the cloth is light or the listing gives no wind figure, is to follow the earlier warning. Force 6 is the latest ordinary point in the flagpole firms' notes, not a dare.

A smaller storm flag, then an empty pole

A storm flag in these procedures is about one third the area of the flag you usually fly. It is a replacement for the normal flag inside the band after force 6 and before force 8, in Flag Consultancy's wording. It is not a full-size flag you leave up because you own a second, smaller one for cup finals. If you do not have a storm flag cut for that pole, the procedure's other option is an empty pole. Empty is a complete answer. A towel, a bedsheet, or the same flag tied in a knot is not a storm flag.

Lowering safely, the night, and the morning after