U.S. National Radar

Comet Ison Viewing Guide

Saturday, April 24, 2010

Weather synopsis: April 24


10:41am an area of High Pressure will give way to a Low Pressure System moving from the South to the Northeast. This system will feature moderate to heavy rain for the Northeast. The Southeast has been receiving strong to severe thunderstorms capable of spawning Tornadoes that will stay well south of the Northeast. The forecast for the Northeast region calls for nice weather today with temperatures in the mid 60s. Increasing clouds can be expected through the evening ahead of the Low Pressure System. Rain will break out in the early morning tomorrow and will continue at a moderate rate. Looking ahead, rain will continue through the early week. Rain should cease by Tuesday in upstate New York but will linger into Wednesday along the Atlantic coast. Temperatures will go on a roller-coaster ride; ahead of this Low Pressure System temperatures will be on the warm side in the 60s, behind the system temperatures will be some 10° cooler in the 50s, then by Wednesday and Thursday temperatures will warm up once more. NCEP forecast models suggest that another big warm up is in the works for the latter portion of the week with temperatures possibly approaching record levels.

Tuesday, April 20, 2010

Weather synopsis: April 20


4:20pm beautiful spring weather continues over much of the Northeast. Hardly any clouds in the sky today in Buffalo, NY and for a good portion of the region. A weak Low Pressure system will try and push in from the south but the region remains under the influence of a dense High Pressure air mass preventing any heavy precipitation if any. The Low Pressure System will produce partly cloudy skies tonight with a very slight chance of a shower tonight especially for southern portions of the Northeast region. Fair weather will be likely through the week and much of the weekend. The average temperature trends and fair weather will stick around till Sunday afternoon-ish. A new Low Pressure System currently affecting the Pacific coast will progress east-bound, affecting much of the Nation before moving in to the Northeast. Current NCEP forecast model projections suggest that the unsettled weather should arrive during the early evening hours this Sunday. Looking far ahead, NCEP forecast models indicate this next Low Pressure System might be a slow mover;if this is indeed the case we can expect a more soggy forecast for next week.

Monday, April 19, 2010

Weather synonpsis: April 19


1:17pm typical spring like conditions prevail over the region. Almanac records indicate that our temperatures are running right around the average for the date. Plenty of sunshine today with just a slight brisk in the air of a spring day. Temperatures are running between 50° and 60° Fahrenheit in upstate New York with a temperature spread between 60°F and 70°F along the Atlantic coast. The forecast calls for this trend to continue through the week as a High Pressure system will take precedence over the Northeast. This system will produce an air mass of stable dense sinking air, this should prevent any showers or mass cumulus cloud formations.

Monday, April 12, 2010

Weather synopsis: April 12


7:11pm typical spring weather will continue this week across the Northeast. High temperatures this week will range between 55°F-60°F in upstate New York and New England and up to 70°F in the southern portion of the region in to southern New York and Pennsylvania. There is a slight chance of light rain Tuesday with a better chance of rain on the horizon into the up coming weekend. NCEP forecast models indicate a prominent storm system will move south from Canada and initiate rain showers in western New York on Thursday. The rain should spread east in to southern New York by Friday. Heavy rain is likely this weekend in the Tri-state area with the storm system redeveloping of shore. Behind the storm system a period of slightly cooler temperatures is possible.

Thursday, April 8, 2010

Weather synopsis: April 8



11:32am beautiful weather is in the forecast for most of the day, temperatures will climb in to the 50s and 60s north of a stationary front and in to the 70s and 80s to the south. Partly to mostly cloudy skies today with increasing clouds by evening. The increasing clouds are due to an approaching cold front to our west that is associated with an upper level low pressure system. Behind this front temperatures will be much cooler but right around normal. Temperatures have been well above average lately for much of the region. A stationary front extended from the Midwest to the Northeast, this was the same front that produced the train of stormy weather and cool temperatures in Buffalo, NY most of the week. South of the front temperatures reached record levels. Yesterday New York City reached 92°F making April 6 the earliest 90° day on record in Central Park; its hard to believe that just 6 weeks ago we were buried in 2 feet of snow. The dry heat sparked concerns of wild brush fires; the National Weather Service posted advisories that placed much of the Northeast under Red Flag Warnings. Though not quite as hot today, New York City will approach 80°F; the same can be expected for much of the region south of the stationary front. The big cheese today will be the passage of a cold front that will spark some showers and introduce a cooler air mass for the entire region. The front will intrude from west to east. It will reach western New York State early this evening then work its way east towards the Atlantic Ocean. Highs on Friday will be in the 30s in northern New England, 40s in Upstate New York and 50s along the coast. Beyond Friday the Northeast will be under the influence of a High Pressure system that will produce pleasant spring weather this weekend and most of next week.

Wednesday, April 7, 2010

Weather synopsis: April7




12:37pm it was a stormy scene in Buffalo, NY this morning as severe thunderstorms spawned large hail as they rumbled through town. The weather across the Northeast will be divided by a frontal boundary. To the north of this front expect cool temperatures with the chance of showers and storms. South of this front expect summer like heat with temperatures approaching 90°F with ample sunshine. The high heat combined with low relative humidity south of the frontal boundary has raised concerns for wild fires. For this reason, the National Weather Service has posted Fire Weather Warnings for much of the Northeast and Midatlantic. Expect much of the same conditions through Thursday before a cold front sweeps the region and drops our temperatures to where they should be this time of year. The weekend is looking to be sunny and dry but cooler with pleasant Spring time temperatures.

Tuesday, April 6, 2010

Weather synopsis: April 6


11:03am scattered showers and thunderstorms have been rumbling through the Northeast this morning. A stationary front over the Great Lakes has provided a means for a series of weak disturbances to move from the Midwest into the Northeast. Some of these disturbances will feature some embedded thunderstorms; some of which could be strong to severe. Temperatures to the north of the stationary front will be slightly cooler in to the 50s and 60s compared to the 70s south of the front. This frontal boundary is associated with a more potent storm system over the nation's mid section that will likely produce severe weather in the Midwest today before working its way to the Northeast as the week progresses. This storm system will drag a cold front that will eventually drop our temperatures by the end of the week by a significant factor. Highs are forecast to be in the 40s and 50s by Friday with a chance of rain mixing with snow at night in to the higher elevations. Tomorrow will be a nice day with highs reaching the 70s and warmer south of the frontal boundary with 80's. These warm temperatures will likely cause enough instability in the Atmosphere to produce isolated spring time thunderstorms. Thursday will be a trancision day as a cold front works in from the west. Generally speaking; expect temperatures to remain mild to warm with a slight chance of scattered showers and storms then cooler and by the end of the week. This weekend wont be a complete washout as sunshine returns by Saturday afternoon and highs returning to the 60s. Fair weather should continue beyond Sunday with a chance of showers returning next week Wednesday.

Saturday, April 3, 2010

Weather synopsis: April 3


12:10pm ample sunshine is upon us into the Northeast with summer like heat into the interior. Record braking heat will continue today with high temperatures in the middle to upper 80's and even approaching the 90°F mark in Buffalo and much of western New York State. In most cases this is warmer than we've been all last summer. This record heat in combination with low relative humidity and strong enough winds are creating ripe conditions for wild fires. The National Weather Service has posted Red Flag Warnings for the potential of brush fires for a good portion of western New York State. Cooler conditions however will be felt along the Atlantic shore into New England, New York City and Long Island where highs will be hard pressed to reach 70°F, though it will still be a gorgeous day weather wise. The cooler temperatures near the coast are due to a maritime air mass and a back door cold front that has developed from the cooler temperatures of the Atlantic Ocean. High Pressure system will keep the sunshine going and prevent any precipitation today. The fair weather will continue through next week. Temperatures wont be as warm as they've been across western New York State and should range between 60°F and 70°F next week with the potential for some isolated thunderstorms; then temperatures will return to normal by next weekend. Along the Atlantic we will be warming it up this week in to the middle 70's with fair weather before temperatures return to normal next weekend.