While not expected to be hit by the most severe of the conditions, Hawke's Bay's regional forecast was for clouds and scattered rain tomorrow and gusty northwesterlies, which could be strong in exposed places.
Finer weather was forecast for much of the rest of the week, although temperatures were expected to range from highs of about 17C to lows of about 7C from Hastings north, to a little cooler in southern Hawke's Bay.
MetService meteorologist Gerard Bellam told NZME it would be "very stormy" in some other areas as a deep low pressure crosses the country, bringing windy and wet conditions, with snow.
Bellam said the whole country should keep up to date with forecasts, warnings and watches as the weather was affecting large parts of the country, especially the South Island, which had 11 warnings or watches in place.