Severe Thunderstorm Warning
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At 12:07 am, MetService weather radar detected severe thunderstorms near KAITAIA, MANGAMUKA, AWANUI, BROADWOOD, THE MAUNGATANIWHA RANGE, KAINGAROA and VICTORIA VALLEY.
These severe thunderstorms are moving towards the southeast, and are expected to lie near OKAIHAU, MANGAMUKA, KOHUKOHU, THE MAUNGATANIWHA RANGE and PUKETI FOREST at 12:37 am and near KAIKOHE, OKAIHAU, NUKUTAWHITI, AWARUA, NGAWHA SPRINGS and OPAHI at 01:07 am.
These thunderstorms are expected to be accompanied by very heavy rain, damaging wind gusts, possible tornadoes and frequent lightning.
Impact:
Very heavy rain can cause surface and/or flash flooding about streams, gullies and urban areas, and make driving conditions extremely hazardous.
Very strong wind gusts can break branches from trees, damage roofing, and make driving hazardous especially for high-sided vehicles and motorcycles.
Tornadoes can blow out windows, lift roofs, break large branches off trees, generate dangerous flying debris and blow vehicles off the road.
Frequent lightning is dangerous to people and livestock, especially those exposed outdoors or on the water, and can cause power surges and damage to electrical equipment.
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The National Emergency Management Agency advises that as storms approach you should:
- Take shelter, preferably indoors away from windows;
- Avoid sheltering under trees, if outside;
- Get back to land, if outdoors on the water;
- Move cars under cover or away from trees;
- Secure any loose objects around your property;
- Check that drains and gutters are clear;
- Be ready to slow down or stop, if driving.
During and after the storm, you should also:
- Beware of fallen trees and power lines;
- Avoid streams and drains as you may be swept away in flash flooding.