The developing coastal storm is moving northeast at 15kts with winds forecast by 06Z/27th north and northwest of the center winds 40-55 knots with seas to 23 feet and by 18Z/27th winds expected 45-60 knots with seas to 34 feet (about 10.5 meters) west of the center. Heavy snow is forecast for much of the coast from northeastern NJ to southeastern New England.
Below is the 21Z/26th surface analysis via NOAA WPC showing the developing storm.
Below is the NAM surface wind forecast for 06Z/27th via Buoyweather.com.
A stong upper-level short wave trough will develop a cut off low along the Middle Atlantic Coast allowing rapid development of a storm along the Middle Atlantic coast Monday night which will move move northeastward slowly to near Nantucket by late Tuesday. Winds with this low are forecast 30-45 knots by 00Z/27th increasing to 4o-55 knots with seas building to about 9 meters (29 ft). north and northwest of the center by 12Z/27th. Heavy snow with blizzard conditions are expected from NJ to Boston.
A fast moving and rapidly deepening storm low is still forecast to move northeastward along the US East Coast from the 24th to the 25th with winds forecast up to 65 knots and seas building to 10.5 meters (about 35 feet). Forecasts suggest that the low will deepen from 1008 MB to 950 MB over 48 hours (58 MB drop)!
An intense 500 MB jet is displaced far to the south across the central North Pacific with winds to 125 knots. At the surface gale to storm force winds prevail with significant wave heights to 11 meters ( about 36 feet). Often you will find the heaviest waves below the area of strongest upper- level winds.
500 MB Surface Analysis via NOAA OPC
Wave Height Analysis via NOAA OPC
A gale low over the Gulf of St. Lawrence this morning will move northeast over the Labrador Sea and deepen into a storm low then continues E-NE passing near or west of Iceland by the 22nd. A developing gale low is forecast off the US Middle Atlantic Coast 21st-22nd deepening to a storm low passing Cape Race on the 23rd enroute to Iceland by the 25th.
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Below: 12Z NOAA OPC Sea State Analysis showing significant wave heights to 14 meters (46 feet)!
Update: 06Z 17 January, 2015: Typhoon Mekkhala is nearing the coast of the Philippines with max winds of 70 knots. Mekkhala is now moving towards the NW at 13 knots and is forecast to weaken rapidly as it moves across the eastern Philippines.
Friday 16 January 2015
A deepening 958 MB storm low west of Ireland at 12Z 14 January 2015 will move ENE deepening to 948 MB passing near Pentland Firth in 24 hours. Winds forces 9-12 and waves to 10-13 meters (33-42 feet) likely south and southwest of the center.
TC Bansi at 18Z 13 January 2015 was located about 174 NM N-NE of Port Louis, Mauritius and was moving ESE slowly. Max winds have increased to 115 knots with seas estimated up to 30 feet. Bansi is forecast to intensify to near 140 knots during the next 48 hours.
Latest track forecast: http://www.usno.navy.mil/NOOC/nmfc-ph/RSS/jtwc/warnings/sh0515.gif