bluewave

That stack is scheduled to be removed. https://www.bnl.gov/stakeholder/docs/CAC/sattler-stack-cac-final-sept-2019.pdf

Warmest day of summer so far at JFK with a high of 91 degrees. http://wxweb.meteostar.com/meteogram/link.shtml?choice=Kjfk

97 in Philly. PHILADELPHIA MOSUNNY 97 60 29 NW12G21 29.84F HX 97

Impressive low 80s at 7am. New York City Metropolitan Area Weather Roundup National Weather Service New York NY 700 AM EDT FRI JUL 03 2020 CITY SKY/WX TMP DP RH WIND PRES REMARKS Central Park SUNNY 79 63 57 VRB3 29.86R LaGuardia Arpt MOSUNNY 81 63 54 NW5 29.82R Kennedy Intl PTSUNNY 81 64 56 NW8 29.82R Newark Liberty MOSUNNY 82 62 50 NW8 29.82R Teterboro Arpt SUNNY 77 64 64 N6 29.82R Bronx Lehman C N/A 77 66 69 NW3 N/A Queens College N/A 81 64 57 NW3 N/A Breezy Point N/A 77 N/A N/A NW3 N/A Brooklyn Coll N/A 81 64 57 NW8 N/A Staten Island N/A 77 66 69 N2 N/A

The LGA temperatures are in line with the surrounding area. But the departures have seen a big jump. So it could just be the temperatures in that part of the city rising the most relative to the 80s and 90s.

First 90 of the season at JFK. https://forecast.weather.gov/product.php?site=NWS&issuedby=JFK&product=CLI&format=CI&version=1&glossary=1&highlight=off The actual temperature in the sun at Central Park is probably close to EWR and LGA. But the deep shade where the sensor is runs a few degrees cooler than open areas like the Great Lawn. I am willing to bet the open areas of Central Park probably came close to 50 days reaching 90 in 2010.

Impressive stretch of early July heat on the 12z Euro today.

First 95 of the season at Newark with warm downslope flow. http://wxweb.meteostar.com/meteogram/link.shtml?choice=KEWR

Maybe close to 60 days if we get a dry enough pattern with the mean ridge position nearby. Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Jan through Dec Click column heading to sort ascending, click again to sort descending. Rank Year Number of Days Max Temperature >= 90 Missing Count 1 2010 54 0 2 1993 49 0 3 1988 43 0 4 2002 41 0 - 1991 41 0 5 2016 40 0 - 1983 40 0 - 1959 40 0

We are catching up on the 90 degree days after a slow start. Time Series Summary for NEWARK LIBERTY INTL AP, NJ Click column heading to sort ascending, click again to sort descending. Ending Date Number of Days Max Temperature >= 90 Jan 1 to Jul 2 Missing Count 2020-07-02 6 0 2019-07-02 6 0 2018-07-02 11 0 2017-07-02 9 0 2016-07-02 6 0 2015-07-02 6 0 2014-07-02 4 0 2013-07-02 6 0 2012-07-02 10 0 2011-07-02 6 0 2010-07-02 16 0

90 at Newark with a warm northerly flow.

Today looks like an overperforming downslope day. HRRR has low 90s for areas that get into the NNW flow.

Looks like another warmer than average July coming up. Models have a 590+DM heat dome building over the Plains and Midwest. So that will probably be our first extended stretch of widespread 90s across the region.

It will be interesting to see if the Euro is correct about the slower backdoor cold front on Friday. The model actually has upper 90s to our south. We were discussing the unusual WAA from SE Canada ahead of the front.

Rare Western U.S. derecho on Saturday.

First look at the new Jan-May 1991-2020 climate normals.

This record +AO pattern was more like something we saw around 1990. https://nsidc.org/arcticseaicenews/ Previous studies, led by University of Washington scientist Ignatius Rigor (e.g., Rigor et al., 2002), suggest that a positive winter phase of the Arctic Oscillation favors low sea ice extent the subsequent September. Wind patterns “flush” old, thick ice out of the Arctic Ocean through the Fram Strait and promote the production of thin ice along the Eurasian coast that is especially prone to melting out in summer. However, in recent years, this relationship has not been as clear (Stroeve et al., 2011). The potential effects this winter’s positive AO on the summer evolution of ice extent and the September 2020 minimum bears watching.

If the rate of warming since 1980 continues, then we are on track for +1.5 C of warming around 2035.

Updated for top 10 warmth in February 2020. 2....2020...EWR...6...NYC...6...LGA....8...JFK...4...BDR...5....iSP...3

Updated for the top10 warmth in January 2020. 1....2020...EWR...9...NYC...9...LGA....7...JFK...6...BDR...3....ISP...6

2nd warmest year for the Arctic behind 2016.

Record low Arctic sea ice extent for the Chukchi Sea in 2019.

Updated for 3.44 in Woodbury, NY. https://nwschat.weather.gov/p.php?pid=201912141224-KOKX-NOUS41-PNSOKX WOODBURY 3.44 704 AM 12/14 CWOP