bluewave

Similar to the findings in this recent paper. https://advances.sciencemag.org/content/4/8/eaat6773 DISCUSSION Implications and outlook The doubling of BG halocline heat content over the past three decades appears attributable to a warming of the source waters that ventilate the layer, where this warming is due to sea ice losses in the Chukchi Sea that leave the surface ocean more exposed to incoming solar radiation in summer. The effects of an efficient local ice-albedo feedback are thus not confined to the surface ocean/sea ice heat budget but, in addition, lead to increased heat accumulation in the ocean interior that has consequences far beyond the summer season. Strong stratification and weak mechanical mixing in the BG halocline ensure that significant summertime heat remains in the halocline through the winter. With continued sea ice losses in the Chukchi Sea, additional heat may continue to be archived in the warm halocline. This underscores the far-reaching implications of changes to the dynamical ice-ocean system in the Chukchi Sea region. However, there is a limit to this: Once the source waters for the halocline become warm enough that their buoyancy is affected, ventilation can be shut off. Efficient summertime subduction relies on the lateral surface front in the NCS region between warm, salty water that is denser to the south and cooler, fresher water that is less dense to the north. For longer-duration solar warming (that is, longer-duration ice-free conditions in the region), SSTs on the south side of the front may become warm enough (around 13°C, under the assumption of a 1.5-month ice-free period dominated by solar absorption) that the lateral density gradient is eliminated [see (24)]. It remains to be seen how continued sea ice losses will fundamentally change the water column structure and dynamics of the Arctic halocline. In the coming years, however, excess BG halocline heat will give rise to enhanced upward heat fluxes year-round, creating compound effects on the system by slowing winter sea ice growth.

Those are gorgeous parts of the country. The Corral Bluff fossil finds highlighted on Nova this week was pretty amazing. https://www.pbs.org/video/rise-of-the-mammals-zuzg8t/

You have to really enjoy heat and humidity to live year round in Florida. But it’s nice for vacations during the cooler parts of the year.

I personally like the new hardier crape myrtles that have really taken off around here. While the palms are ok, they tend to stand out a bit when they are around our native plants. But I draw the line a bamboo. Some people plant that all over their property in Long Beach. It grows sideways underground and runs right into the side of your house. It was the most difficult plant removal that I ever encountered. https://hicksnurseries.com/uncategorized/can-i-grow-crape-myrtle-on-long-island/

They probably didn’t bother to wrap them like this company does.

Updated for the 9th warmest October at EWR and 7th warmest at ISP.

According to the NSIDC data, October 2019 beat 2012 for the lowest monthly average extent. This makes the 3rd new lowest monthly extent record for 2019. It’s also the 10th new lowest monthly extent since 2016. ftp://sidads.colorado.edu/DATASETS/NOAA/G02135/seaice_analysis/Sea_Ice_Index_Monthly_Data_with_Statistics_G02135_v3.0.xlsx 1 2019 5.66 2 2012 5.89 NSIDC lowest average monthly extents Jan...2018 Feb...2018 Mar...2017 Apr....2019 May...2016 Jun....2016 Jul.....2019 Aug...2012 Sep...2012 Oct...2019 Nov...2016 Dec...2016

The Windmill Palms are becoming popular on Long Island. I see some people planting them along the GSB. They wrap them before the winter. There have also been palms around the LB boardwalk near Edwards and Riverside. https://www.islandwidepalmtrees.com/windmill-palms.html

Yeah, effectively shifting the subtropical climate zone north into our area.

The September and October temperature increase since 1981 is similar for local rural and urban locations.

The latest big weather swings.

While the ESS is finally freezing up, Chukchi extent remains at record low levels for the end of October.

Daniel Swain is probably one of the best sources of information on this topic. While all these California wildfire posts probably belong in a different thread, the information below helps people understand the issues involved. https://insideclimatenews.org/news/13112018/california-deadly-wildfires-climate-change-dry-autumn-late-rainy-season-swain-interview What does the recent data show in California? And how are these changes impacting overall rainfall? We are starting to see a trend towards drier autumns in California. It's somewhat new, it's just emerging from the noise, one might say, but it is actually there. This year is going to add another data point in that direction. It matches climate projections. There has long been an expectation that California's so-called shoulder season precipitation would probably decrease—that's autumn and spring. Now what we're starting to see is, especially in the autumn, that process now appears to be underway. It's both an emerging observation but also a projection for the future, a future that maybe isn't really the future any more. That actually doesn't necessarily mean the overall amount of precipitation is decreasing. There's a growing overall concentration of water in the rainy season. Our research suggests that concentration will be a pretty strong indicator of California's future climate. You've made the point that it's problematic to ask whether climate change causes a specific event. Why is that? In any sort of natural system there's never really, in any context, a singular cause of anything. It depends how you define causation, which then is a non-trivial task. It ends up being more meaningful to say, look, we're going to have fires no matter what. Whether they're caused naturally by lightning, by totally innocent human error or by more malicious human intent. It doesn't really matter what started the fire. But the question is, what factors contribute to what happened after the fire starts. The real question is not so much what caused it, because ultimately it doesn't really matter. The question is what made it as bad as it was. Then you can get an answer that, yes, there is a link between wildfire behavior intensity and climate change. As climate change progresses, what is expected to happen with wildfire season? When it comes to wildfire trends, the last five years in California have really been something else. It's really been hard to watch. it's pretty rare to see such large, dramatic step changes as what we've seen in California in the last five to 10 years. We've broken every record, and we've broken them several times. Largest, most destructive, deadliest—all

Highest rainfall total in CT again. https://nwschat.weather.gov/p.php?pid=201910280141-KOKX-NOUS41-PNSOKX WESTPORT 3.04 801 PM 10/27 CWOP

NSIDC put out a tweet about the new record departure.

It sure is.

This was the warmest June through September melt season on record.The earlier areas of open water had more time to absorb the extra heat. So now it’s taking longer for the Arctic Ocean to release the extra heat back to the atmosphere. Perhaps warm water influx through the Bering Strait also played a role. But I have no way of measuring that. Recent winds (drift circulation) and warmer ocean waters from heat gained during the early spring melt-out

2019 continues to expand its record breaking daily low extents for late October. The NSIDC 5 day extent is now 5.503 million sq km as of October 20th. This is well below the previous lowest for the date set in 2007 at. 5.946 million sq km. It also places this year 726 k lower than 2012 which was 6.229 million sq km.

That anomaly grew a little from yesterday. Now at -3.075 as of October 18th. So 2019 continues as the lowest at 5.310 compared to the 5.663 in 2007 and 5.852 in 2012.

Updated for the second breaking storm of the month. New October Record Low Pressures in New England https://www.washingtonpost.com/weather/2019/10/17/powerful-weather-bomb-socks-new-england-with-wind-gusts-mph-knocking-out-power-more-than-half-million/

Updated for 10-16-19 10-17....Norwich, CT...6.15”...numerous 3.00”+ amounts across the area https://nwschat.weather.gov/p.php?pid=201910171436-KOKX-NOUS41-PNSOKX

They usually release it in December.

The Arctic Ocean must have absorbed an impressive amount of heat over the summer. Current 5 day NSIDC extent as of 10-16 is 5.170 million sq km. Extent was 5.422 on 10-16-12. So the unusually slow extent gain pattern continues.

The very slow Arctic sea ice extent gains continue. The NSIDC 5 day extent just fell below 2012 for a new mid-October record low of 5.118 million sq km. The previous record lowest extent value for October 15th was 5.240 million sq km.

Updated for the first record breaking storm system to make headlines this October. 2019 Record Early Season Snows For Upper Rockies And Plains https://weather.com/storms/winter/news/2019-10-14-record-snowiest-start-season-october-northern-rockies-plains