bluewave

Numerous record highs across the Northeast today. BURLINGTON, VT REACHED 91 DEGREES TODAY, BREAKING THE OLD RECORD OF 84 DEGREES SET IN 1961. THIS IS THE LATEST OCCURRENCE OF 90 DEGREES OR WARMER. THE PREVIOUS LATEST OCCURRENCE WAS SEPTEMBER 16, 1939. ...RECORD HIGH TEMPERATURE SET AT ALBANY NY... A RECORD HIGH TEMPERATURE OF 90 DEGREES WAS SET AT ALBANY NY TODAY AT 4:37 PM EDT. THIS BROKE THE OLD RECORD OF 87 SET IN 1961. ...RECORD HIGH TEMPERATURE SET AT ISLIP NY... A RECORD HIGH TEMPERATURE OF 89 DEGREES WAS SET AT ISLIP NY TODAY. THIS BREAKS THE OLD RECORD OF 83 SET IN 2009. ...RECORD HIGH TEMPERATURE SET AT CENTRAL PARK NY... A RECORD HIGH TEMPERATURE OF 91 DEGREES WAS SET AT CENTRAL PARK NY TODAY. THIS BREAKS THE OLD RECORD OF 89 SET IN 1959. ...RECORD HIGH TEMPERATURE SET AT LAGUARDIA NY... A RECORD HIGH TEMPERATURE OF 91 DEGREES WAS SET AT LAGUARDIA NY TODAY. THIS BREAKS THE OLD RECORD OF 89 SET IN 1959. ...RECORD HIGH TEMPERATURE SET AT KENNEDY NY... A RECORD HIGH TEMPERATURE OF 92 DEGREES WAS SET AT KENNEDY NY TODAY. THIS BREAKS THE OLD RECORD OF 88 SET IN 1970. ...RECORD HIGH TEMPERATURE SET AT NEWARK NJ... A RECORD HIGH TEMPERATURE OF 92 DEGREES WAS SET AT NEWARK NJ TODAY. THIS TIES THE OLD RECORD OF 92 SET IN 1959. ...RECORD HIGH TEMPERATURE SET AT ALLENTOWN PA... A RECORD HIGH TEMPERATURE OF 92 DEGREES AT ALLENTOWN PA TODAY EQUALED THE PREVIOUS RECORD FOR THIS DATE, SET IN 1970. ...RECORD HIGH TEMPERATURE SET AT TRENTON NJ... A RECORD HIGH TEMPERATURE OF 92 DEGREES AT TRENTON NJ TODAY EQUALED THE PREVIOUS RECORD FOR THIS DATE SET IN 1970. ...RECORD HIGH TEMPERATURE FOR PITTSBURGH... THE HIGH TEMPERATURE AT PITTSBURGH ON SUNDAY WAS 90 DEGREES. THIS TIES THE RECORD MAXIMUM TEMPERATURE FOR THE DATE SET IN 1881. ...RECORD HIGH TEMPERATURE SET AT WILLIAMSPORT PA... A RECORD HIGH TEMPERATURE OF 92 DEGREES WAS SET AT WILLIAMSPORT PA TODAY. THIS BREAKS THE OLD RECORD OF 90 SET IN 1961. ...RECORD HIGH TEMPERATURE EQUALED AT MOUNT POCONO PA... A RECORD EQUALING HIGH TEMPERATURES OF 85 DEGREES WAS RECORDED IN MOUNT POCONO TODAY AT 354 PM, AND FIRST ESTABLISHED IN 2010. RECORDS DATE BACK TO 1901. ...RECORD HIGH TEMPERATRURE SET AT WORCESTER MA... A RECORD HIGH TEMPERATURE OF 86 DEGREES WAS SET AT WORCESTER MA TODAY. THIS BREAKS THE OLD RECORD OF 85 SET IN 1908...1914...AND 2010. ...RECORD HIGH TEMPERATURE SET AT HARTFORD CT... A RECORD HIGH TEMPERATURE OF 92 DEGREES WAS SET AT HARTFORD CT TODAY. THIS BREAKS THE OLD RECORD OF 89 SET IN 1959 ...RECORD HIGH TEMPERATURE SET AT BANGOR ME... A RECORD HIGH TEMPERATURE OF 85 DEGREES WAS SET AT BANGOR ME YESTERDAY. THIS BREAKS THE OLD RECORD OF 80 SET IN 1989.

https://www.pik-potsdam.de/news/press-releases/winter-cold-extremes-linked-to-high-altitude-polar-vortex-weakening Some regions like Western Siberia even show a downward temperature trend in winter. In stark contrast, the Arctic has been warming rapidly. Paradoxically, both phenomena are likely linked: When sea-ice North of Scandinavia and Russia melts, the uncovered ocean releases more warmth into the atmosphere and this can impact the atmosphere up to about 30 kilometers height in the stratosphere disturbing the polar vortex. Weak states of the high-altitude wind circling the Arctic then favors the occurrence of cold spells in the mid-latitudes. Previous work by Kretschmer and colleagues identified this causal pathway in observational data and it is further supported by several climate computer simulation studies. “Our latest findings not only confirm the link between a weak polar vortex and severe winter weather, but also calculated how much of the observed cooling in regions like Russia and Scandinavia is linked to the weakening vortex. It turns out to be most,” says co-author Judah Cohen from Atmospheric and Environmental Research/Massachusetts Institute of Technology (US). “Several types of weather extremes are on the rise with climate change, and our study adds evidence that this can also include cold spells, which is an unpleasant surprise for these regions.” The effect is stronger over Asia and Europe than over the US. “Circulation patterns drive our weather” “It is very important to understand how global warming affects circulation patterns in the atmosphere,” says co-author Dim Coumou from Vrije Universiteit Amsterdam, Netherlands. “Jet Stream changes can lead to more abrupt and surprising disturbances to which society has to adapt. The uncertainties are quite large, but global warming provides a clear risk given its potential to disturb circulation patterns driving our weather – including potentially disastrous extremes.”

The sea breeze just developed at JFK.

New record for the satellite era. Atlantic has had 8 consecutive named storms reach hurricane strength (Franklin-#Maria) - the most TCs in a row to reach hurricane since 1893pic.twitter.com/WoptBzyNcn

The new record of 91 at JFK is now the latest in the season that that the temperature has been this high.

Only 2 degrees from the record at JFK and it's only 11 am.

Now that the trough has finally replaced the record summer ridge in the West, it doesn't want to leave. Just like last fall.

September 2011 was the last wet one at EWR. All the Septembers since then have been dry.

Newark is on track to beat out 2005 for the warmest late September on record. I will update the final numbers when they come in.

https://www.washingtonpost.com/news/capital-weather-gang/wp/2017/09/22/category-5-hurricanes-have-hit-6-land-areas-dead-on-in-2017-more-than-ever-before/?tid=sm_tw&utm_term=.0516d2209576 Brenden Moses, a researcher at the National Hurricane Center, found that of all Category 5 landfalls on record in the Atlantic since 1851, one-quarter have occurred this season. This is a remarkable statistic. However, it’s important to remember monitoring of hurricanes was much more difficult before the advent of weather satellites in the late 1960s and storms may have been missed. That said, there is no precedent in the last half century of Category 5 storms striking land so frequently in the same season.

Up to 88 now at Newark for our summer in late September pattern.

Up to 85 at Newark.

Models struggling to keep up with the warm downslope flow today. Guidance had Newark at 76 at 11 am and it's already 5 degrees warmer at 81.

Cool departure months like August have been the exception rather than the rule for the most part during the 2010's. You can see how the first 10 days of September were the tail end of the cool August pattern before the big rebound to warmer after September 12th.

It's a continuation of the extreme NP pattern which emerged in 2013. 2009 to early 2013 was all about these extreme ridges setting up over the AO and NAO regions. The record breaking March 2013 -AO seemed to be part of the pattern shift. http://cpo.noaa.gov/News/News-Article/ArtMID/6226/ArticleID/1498/Scientists-link-California-droughts-and-floods-to-distinctive-atmospheric-waves