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Storms and cyclones

Before and during severe storms; cyclone preparation, shelter room, categories (NSW SES, Get Ready Qld).

132 500  NSW SES (flood, storm, tsunami help)

Life-threatening emergency: call 000.

Source: NSW SES During a storm

Storm coming

  • Secure anything that could blow away: outdoor furniture, bins, chemicals.
  • Park cars under cover, away from trees, powerlines and creeks. Blankets tied down over the car reduce hail damage.
  • Close windows, shutters and curtains. Unplug electrical items, aerials and computers (power surges).
  • Check on family, friends and neighbours who may need help.
Source: Get Ready Queensland Storms

Severe storm warning or storm hitting

  • Get everyone and everything inside now, including children and pets. Keep your emergency kit nearby.
  • The safest place is indoors, away from windows, external doors and skylights, until the storm has fully passed.
  • Caught outside: secure shelter away from trees, powerlines, creeks and low-lying areas.
  • Driving: don’t try to beat it home. Stop clear of trees, powerlines and creeks.
  • Stay out of the water and away from damaging surf.
  • Power out: note the time and check your safety switch. Watch for downed powerlines outside.
  • Never drive through floodwater. If it’s flooded, forget it.
Source: Get Ready Queensland Storms; NSW SES During a storm

Severe thunderstorms

The most common storm in NSW. Winds of at least 90 km/h, sometimes over 200 km/h; hail at least 2 cm across; very heavy rain causing flash flooding. Roofs, skylights and windows can be badly damaged; power and phones may be out for long periods.

Source: NSW SES Types of storms

Cyclone

Cyclone forecast for your area

  • Fuel the car and park it sheltered on high ground, away from trees, powerlines, waterways and storm surge areas.
  • Secure boats, caravans, trailers, outdoor furniture, shade sails.
  • Fit cyclone screens or board up exposed windows and doors.
  • Fill containers with drinking water. Kit: at least 3 days of supplies, more if remote or likely to be cut off.
  • Know how to turn off electricity (including solar), gas and water.
  • Choose a shelter room: usually the smallest room with no windows, like a bathroom. If you can’t avoid windows, have a mattress or heavy blanket ready.
Source: Get Ready Queensland Cyclone and storm surge

24 to 48 hours out

  • Bureau map: dark orange warning area = gales or worse expected within 24 h; light orange watch area = possible in 24 to 48 h.
  • In a storm surge area: decide early whether to evacuate. Surge can arrive first, sometimes 24 hours before the cyclone.
  • Bring everything in, close up, unplug, have your grab-and-go bag ready, move indoors with children and pets.
Source: Get Ready Queensland Cyclone and storm surge

When it crosses the coast

  • It can sound like a roaring train or jet engine, for many hours.
  • The calm eye is not the end. The second half often brings stronger winds with little warning.
  • Stay inside, in your shelter room, until officials say it is safe.
Source: Get Ready Queensland Cyclone and storm surge

Cyclone categories

CatStrongest gustTypical effects
1under 125 km/hGales. Minimal house damage; damage to some trees, crops, caravans.
2126–164 km/hDestructive winds. Minor house damage; risk of power failure.
3165–224 km/hVery destructive. Some roof and structural damage; power failure likely.
4225–279 km/hVery destructive. Significant roof and structural damage; dangerous flying debris; widespread power failure.
5over 280 km/hExtremely destructive. Widespread destruction.

Storm tide = storm surge on top of the normal tide. Worst when it arrives at high tide; it can reach areas that are normally safe. Homes within 100 to 200 m of an open shoreline are also at risk from breaking waves.

Source: Get Ready Queensland Know your risk: cyclone and storm surge

Library: NSW SES storm guide, Cyclone preparedness guide, Cyclones and severe storms, Severe weather safety guide.