SNOW ADVISORY (COLDEST AIR TO DATE THIS YEAR MOVING IN – SNOW POSSIBLE TO SEA LEVEL FROM MONDAY AFTERNOON): Good Morning we have the coldest air to date this year knocking on the door! This will bring sleet and snow to low levels, perhaps sea level. The first real polar rodent of the year! What you need to know: • Tonight a cold blast will move up the region bringing showers and snow to 300m. This will mainly affect coastal areas – Banks Peninsula. Further Inland will remain mostly cold but dry. • Tomorrow this icy air turns more southerly and during the afternoon we expect sleet to develop to sea level with snow above 200m across the region. This will affect the port hills during Monday evening. From 3pm this could well turn to snow showers around 100m and possibly to sea level. • Wintry weather will then persist through to Wednesday bringing snow, sleet and rain and bitterly cold southerlies. During Tuesday snow levels will rise to around 200-300m • Our main areas of concern are north Of Christchurch were significant accumulations could fall above 200m. North Canterbury/Kaikoura Coast. Estimated snow depths : 10cm to 200, 15-20cm to 400m and 25-30cm about the hills of North Canterbury and Kaikoura. Note, similar totals are expected on Banks Peninsula and the Port Hills. Further South, snow will fall to the same levels but we expect less moisture - so less snow. • This will be the coldest few days to date this year with temperatures stay well below double digits... This is polar air • This is likely to be a significant event for many and we advise you keep up to date here at CWU. • More details will come to hand during the day as models/data/maps become clearer. Remember snow to these levels can change, there is still a chance it may turn more SW. At this stage however its looking fairly nasty! Stay tuned and please share the status - Russell
Posted on: Sat, 19 Jul 2014 23:06:39 +0000
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