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Weather Warning


SEVERE WEATHER WARNING.
ISSUED BY MetService AT 8:17pm 24-Jul-2016
URGENT - IMMEDIATE BROADCAST IN: Wairarapa, Wellington, Marlborough,
Chatham Islands, Westland, Buller, Nelson

WIDESPREAD HEAVY RAIN IN THE WEST OF THE SOUTH ISLAND HAS NOW EASED,
WHILE SEVERE NORTHWEST GALES ABOUT CENTRAL NEW ZEALAND AND THE
CHATHAM ISLANDS CONTINUE UNTIL EARLY MONDAY MORNING.
An active front that passed over New Zealand has left a strong west
to northwest airflow over much of the country including the Chatham
Islands. However, the winds are forecast to ease on Monday as a
narrow ridge of high pressure gradually spreads over the country.
Although winds have eased slightly across the country, a warning for
severe gale west to northwest winds remains in force for Wellington,
Wairarapa, Marlborough Sounds and the Chatham Islands into the early
hours of Monday morning.
These winds have the potential to be damaging, particularly to trees,
powerlines and unsecured structures and also make for hazardous
driving conditions, especially for tall sided vehicles and
motorcycles.
Also, heavy swells and large waves are expected to affect western
coasts and may cause coastal erosion in vulnerable areas and make
driving conditions hazardous about low-lying coastal roads.
Note that the warning for heavy rain in Westland, Buller and the
ranges of Nelson west of Motueka is now lifted. Although some heavy
and thundery showers are forecast to continue until soon after
midnight tonight (Sunday), widespread heavy rain is no longer
expected.
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MORE DETAILED INFORMATION FOR EMERGENCY MANAGERS AND TECHNICAL USERS
FOLLOWS.
_______________________
STRONG WIND WARNING
_______________________
AREA/S AFFECTED: WAIRARAPA, WELLINGTON AND THE MARLBOROUGH SOUNDS
FORECAST:
Severe gale west to northwest winds gusting 120 km/h are possible in
exposed places until early Monday morning.
AREA/S AFFECTED: CHATHAM ISLANDS
FORECAST:
Until about dawn Monday morning, northwest winds may reach severe
gale with gusts of 120 km/h.
_______________________________
WARNINGS NO LONGER IN FORCE
_______________________________
HEAVY RAIN WARNINGS HAVE BEEN LIFTED FOR: WESTLAND
HEAVY RAIN WARNINGS HAVE BEEN LIFTED FOR: BULLER
HEAVY RAIN WARNINGS HAVE BEEN LIFTED FOR: THE RANGES OF NELSON WEST
OF MOTUEKA
NEXT SEVERE WEATHER WARNING WILL BE ISSUED AT OR BEFORE
9:00am Monday 25-Jul-2016
Forecast prepared by: William Nepe
For further information after 9pm contact Duty Forecaster Hordur
Thordarson or Stephen Glassey
A service provided through a contract with the Crown

Short Range Forecast

201607252359

WARNINGS ARE IN FORCE FOR SEVERE GALES AROUND CENTRAL NEW ZEALAND
Northland to Kapiti, including Bay of Plenty and the central high country, also Wairarapa: Occasional showers, with thunderstorms from Taranaki southwards, clearing from Bay of Plenty and Wairarapa overnight, and elsewhere tomorrow. Westerly gales, possibly severe in the south, easing tomorrow.
Gisborne and Hawkes Bay, also Wellington: Mainly fine. Gale or severe gale westerlies, easing tomorrow.
Nelson, Marlborough and Canterbury: Showers about Nelson and the inland ranges today. Mainly fine elsewhere today, and everywhere tomorrow. Northwesterly gales in exposed places, easing tonight.
Buller and Westland: Heavy showers and squally thunderstorms today. Showers gradually clearing tomorrow.
Otago, Southland and Fiordland: Periods of rain today, with snow down to 100 or 200 metres at times. Tomorrow, showers becoming confined to the south coast.
Chatham Islands: Showers developing tonight and westerlies rising to severe gale for a time.

Extended Forecast

201607282359

Tuesday: North Island, a period of rain, with some heavy falls in the west, then a few showers in the west and dry in the east. South Island, mainly fine in the east with morning frosts, possibly severe, but morning rain for the Sounds and Golden Bay. Cloud increasing in the west, with rain or drizzle developing.
Wednesday: North Island, occasional showers in the west, and mainly fine in the east. South Island, periods of rain in the west, with heavy falls possible, and a few spots of rain in the east.
Thursday: North Island, rain for most places, with heavy falls and possible thunderstorms in the west. South Island, rain in the west, with heavy falls possible. A few showers in the east.
Chatham Islands: Occasional showers on Tuesday and Wednesday, and strong southwesterlies easing and turning northwesterly. Rain at times on Thursday with strong westerlies.

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