Ice – Weather 360

Multi-Day Winter Weather Event Kicks Off Meteorological Winter

December 1, 2019December 1, 2019Posted in Major Storm, Weather 360, WinterTagged connecticut, Freezing Rain, Ice, Long Island, New Jersey, new york, New York City, Sleet, snow, Winter, winter storm, Winter Storm Warning, Winter Weather, Winter Weather Advisory, Wintry Mix, wintry weatherLeave a comment

11:30 am – Snow and mixed precipitation has begun to fall across the NYC Tri-State Area as a two-day winter storm moves into the Northeast. December 1 is considered the first day of ‘Meteorological Winter’ – a period of time that lasts until the end of February and is considered the coldest three month period in the Northern Hemisphere.

THE FREEZING LINE

This storm will be characterized by sharp precipitation boundaries over relatively short distances. The difference between coastal and inland locations, or even changes in elevation of only several hundred feet, will dictate both when and how much frozen precipitation will fall and accumulate.

INLAND LOCATIONS (Or above 400 ft elevation) – Winter Storm Warnings. The most inland locations will likely not experience any mixed precipitation at all. Snow accumulations in these areas may exceed one foot. For less inland locations currently under a winter storm warning, a mid-afternoon changeover to mixed precipitation or rain is expected today, with a refreeze and changeover back to snow expected around noon Monday. Among the several inches of snow possible, the threat exists for ice to accumulate on roadways, trees, and power lines. Travel will be significantly more difficult during periods of heavier precipitation this afternoon and evening. A refreeze as well as more snow tomorrow will further complicate travel. Exercise extreme caution on roadways and avoid unnecessary travel if possible.
COASTAL LOCATIONS (Generally less than 400 ft elevation) – Winter Weather Advisories or no winter weather alert. A mix of snow, sleet, freezing rain, and rain will transition to all rain by mid-afternoon today. A transition back to frozen precipitation is expected Monday afternoon. Several inches of snow as well as some ice accumulation are possible. Exercise caution on slick roadways.

Due to the mixed-precipitation nature of this early December storm, any actual snow accumulation will depend on how long snow falls before transitioning to sleet, freezing rain, or rain. Total storm accumulations will likely be impacted by any changeover to rain.

Conditions may vary significantly over relatively short distances. Be prepared for rapidly changing conditions and exercise caution while outdoors and on the road.

Snow to Transition to Wintry Mix, Ice, and Rain Tuesday

February 11, 2019Posted in Major Storm, Weather 360, WinterTagged Freezing Rain, Heavy Snow, Ice, Power Outages, Road Hazards, Sleet, Slick Roads, snow, Spotty Power Outages, Widespread Power Outages, Winter, Winter Storm Warning, Winter Weather, Winter Weather Advisory, Wintry Mix, wintry weatherLeave a comment

The National Weather Service has issued Winter Storm Warnings and Winter Weather Advisories throughout the New York City Tri-State Area. Updated ice accumulation forecasts have indicated a much more significant level of ice accretion for locations to the north and west of the city, making for potentially dangerous roadway conditions Tuesday afternoon as well as setting up the possibility for isolated to potentially widespread power outages going into Tuesday night.

IceForecast02112019 — The National Weather Service’s ice accumulation forecast as of 8:41 pm EST on February 11, 2019.

Plan on steady snow developing by mid-morning Tuesday, with the potential for snowfall rates exceeding 1 to 2 inches per hour in the first couple hours of the storm. While the exact timing of the transition from snow to wintry mix (sleet, freezing rain, and snow) depends heavily on specific location, most areas – excluding Long Island, where the transition could occur more rapidly and sooner than elsewhere – will see this changeover around the early to mid-afternoon.

warrior-forecast-snow-event-11-12-18 — The Weather 360 snowfall forecast for Tuesday, February 11, 2019. Snow totals will vary greatly based on proximity to the coast.

4 dangerous — The Weather 360 roadway forecast for Tuesday, February 11, 2019. Please exercise extreme caution during the duration of this storm, with extra attention directed to built up ice and snow on certain roads.

Roadways will become dangerous by early afternoon due to periods of heavy precipitation and ice accretion. Please avoid unnecessary travel during the worst of the storm, with extreme caution on both treated and untreated roadways due to ice, snow, and reduced visibility. Most locations should see conditions rapidly improve Wednesday as temperatures are expected to go above freezing.

Far-Reaching Winter Storm Expected to Bring Heavy Snow, Sleet, Ice, and Rain

January 18, 2019January 19, 2019Posted in Major Storm, WinterTagged >12" snow, Extreme Cold, Freezing Rain, Heavy Snow, High Winds, Ice, Power Outages, Road Hazards, Sleet, Widespread Power Outages, Winter Storm Warning, Winter Storm WatchLeave a comment

2019’s first major winter weather event has now triggered Winter Storm Warnings throughout the NYC Metropolitan Area. Recent runs of short range computer models have indicated larger-than-expected snow accumulations north and west of the city, with some places potentially receiving upwards of 12 inches of snow along with up to a quarter of an inch of ice.

snow accumulation 19 - 1 18 — The official Weather 360 Tri-State-wide snow total forecast as of 6:00 pm ET January 18, 2019. As per usual in storms involving ice and wintry mix, the greatest snow totals are most likely to occur in interior locations of New York, New Jersey, and Connecticut to the north and west of the city.

While more areas may see more snow than ice or rain, the potential still exists for upwards of a quarter of an inch of ice to accumulate by early Sunday morning. The threat of ice, along with heavy snow and wind gusts potentially exceeding 50 mph, may lead to downed trees and tree limbs as well as power outages come Sunday afternoon. Coupled with sub-zero temperatures Sunday night, the storm has become potentially serious, especially for those who do experience lapses in electricity.

4 Dangerous.JPG — The official Weather 360 roadway forecast, valid from sundown Saturday afternoon until Monday morning. Exact roadway conditions will be heavily dependent on location, but expect conditions to be especially hazardous during the time frame indicated above. Exercise extreme caution on roadways during and after the storm.

Along with the threat for downed trees and power lines also comes the threat for dangerous road conditions. Roadways will begin deteriorating late Saturday afternoon and, due to the rapid refreezing of any liquid on the ground going into Sunday night, will remain potentially hazardous at least through Monday morning.

More updates will be posted as needed both here and on our Facebook page. Stay safe!

Uncertainty Remains as Major Weekend Storm Nears

January 16, 2019Posted in Major Storm, Weather 360, WinterTagged Extreme Cold, Freezing Rain, GFS, High Winds, Ice, Mid Atlantic, NAM, New England, New York City, New York Metro Area, Power Outages, rain, Sleet, snow, Snow StormLeave a comment

Aside from several inches in November, it has been ten months since there has been significant snowfall seen in the New York City Metropolitan Area. This is now expected to change as soon as this weekend, as a significant winter weather event has begun to move east.

gfsfv3 1 16 19 102hr mslp — The evening run of the FV3 GFS computer model on January 16, 2019. Any slight shift to the east or south with this storm could mean extremely high snow totals closer to, or even south of, I-95. (Image courtesy tropicaltidbits.com)

Snow will quickly develop and intensify as it moves into the Tri-State Area late Saturday evening or early Sunday morning, bringing with it rapid accumulations on most surfaces. However, the position of the storm will dictate if and when many locations will see a changeover to sleet, ice, or rain.

At the moment, it appears that locations north of the city and I-95 will experience this transition as early as 9 am Sunday, allowing for potentially significant ice accretions on many surfaces by noon Sunday.

Whether or not the precipitation remains frozen or becomes rain during the day, snow and ice will redevelop by the afternoon as temperatures drop and winds increase Sunday night. It is also important to note that, regardless of the direct impacts of the storm, temperatures will fall to near below zero throughout the Mid Atlantic and New England by early Monday morning. This rapid refreezing could mean any liquid precipitation that falls may become ice on roads, trees, and power lines quickly after the storm exits the area.

nam12km 1 16 19 84hr — The evening run of the NAM 12km computer model on January 16, 2019. This particular run suggests a delayed transition from snow to ice or rain around NYC, meaning snow accumulations could run much higher than currently expected. (Image courtesy tropicaltidbits.com)

Due to the uncertain nature of the this storm, Weather 360 is currently forecasting anywhere between 4 and 12+ inches north of I-95, with anywhere between 3 and 8+ inches to its east and south. Forecasts will be refined in the coming days as the center of the storm develops, but for now, be prepared for a storm that could knock out power, make travel dangerous for an extended period of time, and dump a significant amount of snow, sleet, ice, and rain.

Wintry Mess Expected Tomorrow

February 11, 2017February 11, 2017Posted in Major Storm, WinterTagged Freezing Rain, Ice, Mid Atlantic, New England, New York City Weather Forecast, New York Metro Area, Sleet, snow, winter storm, wintry weatherLeave a comment

Only 2 days after the largest storm of the season, the Northeast is on the brink of yet another major winter weather event. In southern portions of the Mid-Atlantic and New England, snow in the morning will likely transition to a wintry mix or rain by the afternoon, but further to the north, cooler conditions will allow for up to 2 feet of snow to accumulate in some areas.

The most significant differences in snow accumulation are expected to occur between locations further to the south and closer to the coast, and those slightly further to the north and inland. In the NYC Metro Area, up to a foot of snow, sleet, as well as some ice is possible in locations to the north of Westchester, whereas in coastal NJ, NY, and CT, only a few inches of snow is expected before the transition to more liquidy precipitation takes place.

Regardless of accumulation, expect weather conditions tomorrow to reduce visibility and hamper travel all day. Please be aware of the weather conditions at your current location as well as in your destination if you intend to travel. More safety related information can be found at http://www.weather.gov.

Wintry Mess to Impact the Area Overnight

February 15, 2016February 15, 2016Posted in WinterTagged black ice, Ice, Mid Atlantic, New England, Northeast, NWS, NYC Metro Area, Road Hazards, Slush, snow, snow event, snow falling, Snow Storm, Snow Update, Winter Weather, Winter Weather AdvisoryLeave a comment

Locations across the NYC Metro Area are now under Winter Weather Advisories as snow and other wintry precipitation continues to envelop the area. Tonight, temperatures will continue to rise, and the wintry precipitation now will slowly transition to sleet and freezing rain, before tapering off as some rain showers across the area very early tomorrow morning. Currently, areas still receiving snow will likely have accumulated 1-3 inches of snow by now, making it somewhat difficult to get around. Ground temperatures are still below that of the air, meaning that areas receiving snow or other wintry precipitation will likely continue to see more accumulation. Tomorrow’s commute will be messy in the early morning until more rain moves in around 9 AM to wash some of the slush and snow on the roads away.

A Winter Weather Advisory is issued when the National Weather Service decides there will be hazardous weather in a certain area that will include some sort of wintry precipitation.

Most Winter Weather Advisories across the area are set to expire tomorrow around 7 AM.