U.S. National Radar

Comet Ison Viewing Guide

Friday, January 29, 2010

Weather synopsis: January 29


7:00pm temperatures through out the Northeast have been cold to say the least. Temperatures have been in the 0s to 10s with wind chill values much colder. Expect more of the same temperature wise as this stubborn air mass lingers tomorrow and into our Saturday. After Sunday we can expect moderating temperatures, though it will still be cold it wont be nearly as cold as its been. This past week in Buffalo over 1 foot of snow has fallen with the latest round of Lake Effect Snow. Regions to the south are also expecting some significant snowfall as well as moderate icing. Looking forward, Lake Effect Snow will likely re-develop sometime this up coming week producing additional amounts of snow across Western New York.

Thursday, January 28, 2010

Weather synopsis: January 28


12:30pm a cold sharp front associated with a clipper system is working its way through the Northeast. Temperatures ahead of the front are in the 30's, behind this frontal boundary temperatures have taken a significant plunge with current readings in the 10's in Buffalo. Expect falling temperatures through the day as this round of arctic air settles in over the Northeast. Bone chilling cold will be felt for the next few days. Along with the low temperatures winds will also be an issue essentially making it feel much colder than it is. Winds should gust up and over 40MPH. Wind chill values will be well below zero in most cases. This cold front is also creating enough instability to produce wide spread snow showers across the region. Reports from NYC of up to 1.0" of snow have been observed with another inch not out of the question by day's end. Over the Great Lakes the passage of this cold front has re-oriented the winds over the lakes producing more Lake Effect snow over the lee-ward side of the lakes. Total Lake Effect snow accumulations in and around Buffalo should amount between 7.0" to 16.0" by the time the Lake Effect activity tappers off this Saturday.

Wednesday, January 27, 2010

Weather synopsis: January 27



10:50am temperatures in the Northeast range between the mid 20's across the eastern Great Lakes and mid 30's along the coast. There is a Lake Effect Snow Advisory in effect for the city of Buffalo as a southwesterly wind over Lake Erie is producing moderate snow showers. Additional snow accumulations by days end could range between 4.0" to 7.0". These Lake Effect snow bands will develop south of Buffalo and work their way north to Niagara Falls. The heaviest snowfall amounts will be in the most persistent squalls. Lake Effect snow is forecast to redevelop for the remainder of the work week as the wind orientation will be right off the Lakes with another round of significant snow on Thursday likely. Winds are forecast to change course by Friday, the Lake Erie snow machine will cease, total snow accumulations for the week will range between 6.0" to 12.0" with some locations picking up more than that. Temperature wise, extreme cold will be felt across much of the Northeast as the thick of the current arctic air mass moves in from Canada. High temperatures forecast from Thursday through Saturday will be in the 10's and 20's in the Northeast with lows below Zero to the 10's, when you factor in the wind it will fell much colder so bundle up. NCEP forecast models have hinted towards a potential coastal Low Pressure System affect the Major cities along the coast this weekend, as of now the forecast models predict a blocking High Pressure System that should veer the coastal low to the south into the Mid-atlantic. This should spare the big cities like New York and Boston from a potential Nor'Easter,

Tuesday, January 26, 2010

Weather synopsis: January 26



2:20pm temperatures in the Northeast are divided by a cold front that is working its way on eastward. Ahead of the front temperatures are in the 40's with the last rements of this week's the storm system taking its final toll. Behind the front temperatures arein the 20's and 30's with Lake Effect snow showers off Lakes Erie and Ontario. Locations east of Lake Ontario near Watertown could pick up between 6.0" and 12.0" of snow with in the next 24hrs. Locations downwind of Lake Erie will pick up an additional 1.0" to 3.0" of snow including the city of Buffalo. South of Buffalo up to 6.0" of additional snow accumulations are in the forecast as those Lake Effect snow bands could be more presistant. A chance for Lake Effect snow will linger through much of the week across the eastern Great Lakes with a presistant cold wind. NCEP forecast models agree that this cold pattern will carry on for the foreseeable future with a storm system likely impacting the coastal regions of the Northeast especially NYC and Long Island with significant snow and wind by this weekend.

Monday, January 25, 2010

Weather synopsis: January 25


7:20pm the storm system that produced the heavy rain in the region is moving away. This storm has produce impressive rainfall with 2.20" reported in Erie County. Flood warnings were issued with the rain combined with melting snow causing water levels to rise. In the wake of the storm, temperatures began to drop steadily as time progressed. The forecast temperatures will continue to drop through the week as an arctic air mass continues to settle in. By the end of the work week High temperatures should top off in the middle to upper 10's across Western New York. Winds are expected to change directions and will be oriented off Lakes Erie and Ontario. This will produce Lake Effect snow showers. Locally 1.0" to 3.0" of snow can be expected with higher amounts into Syracuse and locations south of Buffalo. By the end of the work week yet another storm system will make its way into the Northeast. Primarily coastal regions will be impacted as this will be more of a coastal storm. With cold temperatures in the forecast we could be dealing with snow along the major cities from Boston to New York and farther south into the Mid-atlantic into Washington D.C. and Philladelphia this Friday and Saturday.

Sunday, January 24, 2010

Weather synopsis: January 24


10:40pm the weather across much of the eastern third of the nation has been rather soggy to say the least. A rather dynamic storm system has taken the place of the High pressure system that produced the fair weather on Friday and Saturday across much of the Northeast. Flood advisories have been issued up and down the eastern sea board where heavy amounts of rain is being observed and can be expected to continue. Regionally forecast rainfall could very well range between 1.0" across the interior to 3.0" along the coast. South of the region the heavy rain could be accompanied with some embedded thunderstorms, some of which could produce severe weather and locally heavier amounts of rain. The rainfall is forecast to dissipate from west to east across the region on Monday. This storm system is currently dragging a sharp cold front and with its passage temperatures will plummet through out the course of the week as an arctic air mass settles in. As the storm system pulls away and temperatures drop, wind orientation across the Great Lakes have the potential to produce lake effects snow showers for a good portion of the week. This arctic air mass combined with the current progressive weather pattern could yield a snowier time period ahead. NCEP forecast models seem to agree as data seems correlate with colder temperatures for the days ahead.

Friday, January 22, 2010

Weather synopsis: January 22-25


At 1:20am temperatures in the Northeastern U.S. are pretty chilly but still above average ranging generally between 10's in the interior to low 30's along the coast. Temperatures continue to oscillate between seasonable conditions and mild temperatures as the jet-stream reconfigures itself producing a dynamic weather pattern. The weather in the Northeast is being dominated by High Pressure creating sinking air and a chillier night relatively speaking. This High Pressure system will act as a blocking mechanism as it should divert a storm system that is moving up from the South and steer it clear from the region. As the High Pressure system progresses eastward, its clockwise flow will shift winds from the south again, re-introducing mild temperatures into the region. A storm system will move in from the west and likely impact the region by the latter half of the weekend. With mild temperatures in place rain will be on tap. With the recent Arctic Cold invasion and some areas still covered in snow combined with mild temperatures and heavy rain this situation will likely create flooding. Rain should continue through Monday. Behind this system temperatures will likely take a tumble. Looking ahead, NCEP forecast models suggest another period of bitter cold so don't put away the Arctic gear just yet, we've only entered the thick of the season and old man winter always has tricks up his sleeves.

Tuesday, January 19, 2010

Weather synopsis: January 18


At midnight the temperature in Bronx County, NY is 43°F under mostly cloudy skies. The rain storm that has impacted the region this past Sunday has produced a considerable amount of rain and wind. Rainfall amounts have been recorded over 0.5" in NYC to greater than 1.5" over Long Island combined with a melting snow pack causing some flooding. Considerable wind gusts have also been reported ranging between 40MPH in the Bronx to over 50MPH at Shinnecock inlet in Long Island. Unseasonably mild conditions continue after weeks of bone chilling cold, we reached a high temperature of 50°F today. Temperatures are running some 15° to 20° above the average for January standards. Climatologically speaking, these mild temperatures aren't that unusual as it is typical to see a prolonged period of mild temperatures in the month of January within the contiguous United States. This phenomenon is known as the January Thaw. These mild conditions however will likely be short lived as we are only entering the thick of the Winter season. A cold front will sweep the region tomorrow and drop our temperatures to more seasonable readings tho not nearly as cold as we've experienced thus far this Winter season. This cold front has the potential to initiate a few light snow showers within the region Tuesday night and Wednesday morning, I want to emphasize the word light; any precipitation that does fall shouldn't have any considerable impact on any event plans or travel arrangements. Looking ahead, temperatures will likely oscillate between cold and mild readings for the foreseeable future. The next real chance for any considerable precipitation will arrive by the weeks end. A storm system will likely impact the region on Friday the 22nd through Saturday the 23rd with a mix of Rain and Snow as temperatures will run right on the precipice of supporting frozen and liquid precipitation. Looking far ahead, NCEP forecast models are predicting a colder pattern to return to the region with the possibility of a storm system impacting the Northeast region near Ground Hog's Day. I want to mention that a forecast this far into the future is subject to change as weather, especially this time of year; is dynamic and virtually unpredictable even with the most sophisticated forecasting equipment and super computer calculations.

Saturday, January 16, 2010

Weather synopsis: January 16


Currently in the Bronx the temperature is 42°F under mostly clear skies. High temperatures today should hit 50°F as our warm streak continues. A storm system over the Gulf of Mexico will be moving northward to our region by Sunday the 17th. This low pressure system will feature heavy rain and strong winds. The low should move out by Tuesday and in its wake colder temperatures should move in. On Wednesday a clipper system will move in from Canada and has the potential to produce steady snow showers.

Friday, January 15, 2010

Weather synopsis: January 15


At 9:19am the temperature in the Bronx is 38°F with an overcast sky. Warm weather has infiltrated the region with high temperatures returning to the 40's. This temperature rebound is the result of a shift in the weather pattern that will allow the subtropical jet-stream to bring milder conditions. A storm system brewing over the Gulf of Mexico will initiate heavy rain an possible severe thunderstorms for the Southeast this week then it will begin to work its way northward up the east coast sometime this weekend into early next week. With warmer temperatures influencing our weather the precipitation will likely fall in the form of rain for the most part and it could be heavy at times. In the wake of this system a cold front will drop temperatures by Tuesday 19th.

Thursday, January 7, 2010

Weather synopsis: January 7-14


At 1:23pm the temperature in the Bronx is 37°F with fair skies. Today has been the warmest day of the year thus far as we managed to climb above the freezing point. Clouds will be on the increase tonight ahead of a clipper system that will arrive in the early morning on Friday. This system will produce some light to moderate snow across the region that could accumulate 1.0" to 2.0" by the time the precipitation stops early Friday afternoon. Following this system a cold front will drop temperatures once more for early next week. NCEP forecast models are indicating a rebound in temperatures by late next week. This should bring a much needed opportunity for milder temperatures into the tri-state region at least temporarily before temperatures return to a colder range.

Saturday, January 2, 2010

Weather synopsis: January 2-6


THE NATIONAL WEATHER SERVICE IN UPTON, NY HAS ISSUED A WIND ADVISORY FOR THE TRI-STATE AREA AND A WINTER WEATHER ADVISORY FOR EASTERN LONG ISLAND. At 2pm the current temperature in The Bronx is 25°F with an overcast sky and snow showers in the area. Today will be blustery with winds howling over 30MPH and gusting up and over 50MPH. This combination of cold air and wind will make it feel much colder than the actual air temperature. Wind chills will be in the single digits. A band of moderate snow has developed and is going to affect eastern Long Island with 2.0" to 5.0" of new snow. The snow combined with a strong wind will create near white-out conditions periodically throughout the day over Long Island. NYC will experience some on and off light snow and could pick up an additional 1.0" of snow before its all said and done. The cold and windy conditions will stick around so expect a frigid Sunday. Winds will subside by Monday but it will remain cold through the week. The next chance of precipitation should come by Friday with a potential coastal storm developing. NCEP forecast models are in disagreement as to what track this storm system might take, some bring it far enough off shore that we will have a sunny day, some bring it close enough to the coast to give us another snow event.

Weather synopsis: January 1


The current temperature in the Bronx is 33°F with an overcast sky and light snow. 2010 has arrived like a lion with a Nor'easter churning over the waters of the Gulf of Maine. This system will continue to influence the weather over the tri-state region with light snow showers and blustery conditions through our Sunday. A moderate snow band may develop sometime on Saturday and Sunday that could affect parts of eastern Long Island with accumulating snow with lighter snow in NYC before the system finally pulls away. In the wake of this storm cold weather will prevail with temperatures struggling to reach the freezing point at least through the entire first week of the New Year. By Friday the 8th NCEP forecast models are hinting toward a slight possibility of another coastal low pressure system forming off the east coast that could have a potential impact on our weather.