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Everything posted by bluewave
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Sun July 11-Mon July 19 Pockets of FF/SVR and a modest heat wave
bluewave replied to wdrag's topic in New York City Metro
A wunderground site in Hillside,NJ has 3.12 so far. https://www.wunderground.com/dashboard/pws/KNJHILLS84/table/2021-07-17/2021-07-17/daily PRECIP RATE 1.72 in/hr PRECIP TOTAL 3.12 in- 382 replies
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Yeah, it doesn’t take that big a departure anymore for a top 10 warmest summer. Time Series Summary for NEWARK LIBERTY INTL AP, NJ Click column heading to sort ascending, click again to sort descending. Rank Year Mean Avg Temperature 91-20 Departure 1 1993 79.2 +3.5 2 2010 78.7 +3.0 3 1994 78.5 +2.8 4 2011 78.0 +2.3 5 2021 77.8 +2.1 - 2005 77.8 +2.1 6 1988 77.7 +2.0 7 2020 77.6 +1.9 - 2016 77.6 +1.9 - 1973 77.6 +1.9 8 1999 77.1 +1.4 9 1995 77.0 +1.3 10 2012 76.9 +1.2
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The less warm pattern coming up may prevent Newark from getting 3 top 10 warmest Julys in a row. Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Month of Jul Click column heading to sort ascending, click again to sort descending. Rank Year Mean Avg Temperature Missing Count 1 2011 82.7 0 2 1993 82.5 0 3 2010 82.3 0 4 1994 81.9 0 5 2013 80.9 0 6 2020 80.8 0 - 2012 80.8 0 - 1999 80.8 0 7 2019 80.6 0 8 1955 80.5 0 9 1988 80.4 0 10 2002 80.0 0 11 2016 79.9 0 12 1983 79.6 0 - 1966 79.6 0 13 1995 79.5 0 - 1949 79.5 0 14 2006 79.4 0 - 1987 79.4 0 15 2021 79.3 15
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It’s the reason that EWR has 23 days of 90° and LGA only 14 through yesterday.
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This is an odd looking departure map for July. Looks more like a spring backdoor pattern. Warmer west of NYC away from the onshore influence.
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We should see a break in the heat after tomorrow during what is typically our hottest time of the year.
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Sun July 11-Mon July 19 Pockets of FF/SVR and a modest heat wave
bluewave replied to wdrag's topic in New York City Metro
The HREF has another strong flash flooding and severe signal. But it will probably take a few more runs to pin down the exact locations. It has done very well with these general signals recently.- 382 replies
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It gives new meaning to over the top heat. Time Series Summary for Dallas-Fort Worth Area, TX (ThreadEx) - Jan through Dec Click column heading to sort ascending, click again to sort descending. Year Highest Max Temperature Missing Count 2021 99 169 Time Series Summary for Seattle Tacoma Area, WA (ThreadEx) - Jan through Dec Click column heading to sort ascending, click again to sort descending. Year Highest Max Temperature Missing Count 2021 108 169 Time Series Summary for Portland Area, OR (ThreadEx) - Jan through Dec Click column heading to sort ascending, click again to sort descending. Year Highest Max Temperature Missing Count 2021 116 169 Time Series Summary for Boise Area, ID (ThreadEx) - Jan through Dec Click column heading to sort ascending, click again to sort descending. Year Highest Max Temperature Missing Count 2021 107 169 Time Series Summary for Billings Area, MT (ThreadEx) - Jan through Dec Click column heading to sort ascending, click again to sort descending. Year Highest Max Temperature Missing Count 2021 105 169 Time Series Summary for Bismarck Area, ND (ThreadEx) - Jan through Dec Click column heading to sort ascending, click again to sort descending. Year Highest Max Temperature Missing Count 2021 107 169 Time Series Summary for Boston Area, MA (ThreadEx) - Jan through Dec Click column heading to sort ascending, click again to sort descending. Year Highest Max Temperature Missing Count 2021 100 169 Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Jan through Dec Click column heading to sort ascending, click again to sort descending. Year Highest Max Temperature Missing Count 2021 103 169
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Numerous stations in the Northeast had a top 5 warmest and wettest first half of the summer.
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They should send these guys over to the Central Park ASOS.
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Posters have been talking about July specifically in areas of the forum that are closest to New England. We all know how hot June was. But Northern and Central NJ had the 4th warmest first half of summer on record. Even our coolest recent summers like 2017 are still plenty hot for outdoor work in this part of the country. You would need to go up to the Canadian Maritimes to experience comfortable outdoor working conditions in July. Time Series Summary for NEWARK LIBERTY INTL AP, NJ Click column heading to sort ascending, click again to sort descending. Rank Ending Date Mean Avg Temperature Jun 1 to Jul 15 Missing Count 1 1994-07-15 79.2 0 2 1993-07-15 78.9 0 3 2010-07-15 77.9 0 4 2021-07-15 77.1 0 5 1981-07-15 77.0 0 - 1966-07-15 77.0 0
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By post 2010 standards, this hasn’t been one the hottest Julys so far. We have had too much in the way of clouds, convection, and onshore flow. While the heat the next few days will boost the means, we will be off the averages of our warmest Julys since 2010. The drought areas of the West will end up with the most extreme July heat this year. Northern NJ has been the warmest part of the region since it has been able to escape some of the onshore flow influence. The cooler easterly flow behind the backdoors has kept LGA at the coolest relative to the 2010s so far. Time Series Summary for LAGUARDIA AIRPORT, NY - Month of Jul Click column heading to sort ascending, click again to sort descending. Rank Year Mean Avg Temperature Missing Count 1 2020 82.9 0 2 2010 82.8 0 3 2019 81.5 0 4 2013 81.2 0 5 2016 81.1 0 6 2012 80.4 0 - 2011 80.4 0 7 2018 79.8 0 8 2015 79.2 0 9 2017 78.1 0 10 2014 77.0 0 11 2021 76.9 16 Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Month of Jul Click column heading to sort ascending, click again to sort descending. Rank Year Mean Avg Temperature Missing Count 1 2011 82.7 0 2 2010 82.3 0 3 2013 80.9 0 4 2020 80.8 0 - 2012 80.8 0 5 2019 80.6 0 6 2016 79.9 0 7 2015 79.0 0 8 2021 78.8 16 9 2018 78.2 0 10 2017 77.3 0 11 2014 77.0 0
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Looks like the record heat will be focused over Montana next week. EPS July 19-26
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Historic Pacific Northwest Heatwave of 2021
bluewave replied to donsutherland1's topic in Climate Change
No surprise that the Northern Hemisphere mid-latitude land set a new June heat record by a significant margin.- 323 replies
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We have had so much record July heat since 2010, that the new 30 year climate normals have risen from 77.4 to 78.2 at Newark. So Newark only needs a +1.8 July departure for a top 10 warmest 80° or higher July. That’s why using departures can really underestimate heat in a warming climate. https://www.ncei.noaa.gov/access/us-climate-normals/#dataset=normals-monthly&timeframe=30&station=USW00014734 Time Series Summary for NEWARK LIBERTY INTL AP, NJ - Month of Jul Click column heading to sort ascending, click again to sort descending. Rank Year Mean Avg Temperature Missing Count 1 2011 82.7 0 2 1993 82.5 0 3 2010 82.3 0 4 1994 81.9 0 5 2013 80.9 0 6 2020 80.8 0 - 2012 80.8 0 - 1999 80.8 0 7 2019 80.6 0 8 1955 80.5 0 9 1988 80.4 0 10 2002 80.0 0
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There is actually lower pressures closer to North American side this year compared to 2013 and 2006. But since there is so much record warmth surrounding the Arctic, warmer air is being drawn north. The warmer spring this year also allowed more of a head start on the melt than 2013. But this pattern is still more favorable than the raging dipole pattern last year. That is why we are falling behind 2020s pace. I also suspect that we will fall behind 2012 going forward. .
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This amount of heat and heavy rainfall combined since late May is unprecedented. Time Series Summary for NEWARK LIBERTY INTL AP, NJ Click column heading to sort ascending, click again to sort descending. Rank Ending Date Total Precipitation May 22 to Jul 14 # 90° days and Max Tempersture 1 1984-07-14 16.63 12 97° 2 2003-07-14 13.46 10 95° 3 2013-07-14 13.10 14 96 4 2021-07-14 12.86 20 103°
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This is been one of the most persistent heatwave followed by heavy rain patterns since late May. We are currently in the heatwave phase. So we are on track for another heavy round of convection after this heatwave peaks. Data for NEWARK LIBERTY INTL AP, NJ Click column heading to sort ascending, click again to sort descending. Date Max Temperature Precipitation 2021-05-22 96 0.00 2021-05-23 94 0.00 2021-05-24 68 0.00 2021-05-25 81 0.00 2021-05-26 94 0.09 2021-05-27 87 0.01 2021-05-28 71 1.15 2021-05-29 52 0.58 2021-05-30 53 1.15 2021-05-31 76 T 2021-06-01 80 0.00 2021-06-02 79 T 2021-06-03 77 0.41 2021-06-04 83 0.19 2021-06-05 95 0.00 2021-06-06 97 0.00 2021-06-07 95 0.04 2021-06-08 93 2.19 2021-06-09 96 0.53 2021-06-10 85 0.00 2021-06-11 73 T 2021-06-12 72 T 2021-06-13 78 T 2021-06-14 78 0.16 2021-06-15 85 0.01 2021-06-16 81 0.00 2021-06-17 81 0.00 2021-06-18 88 0.00 2021-06-19 93 0.05 2021-06-20 91 0.00 2021-06-21 92 T 2021-06-22 80 0.17 2021-06-23 80 0.00 2021-06-24 79 0.00 2021-06-25 83 0.00 2021-06-26 86 0.07 2021-06-27 95 0.00 2021-06-28 99 0.00 2021-06-29 102 0.00 2021-06-30 103 0.54 2021-07-01 89 0.94 2021-07-02 81 1.53 2021-07-03 70 0.05 2021-07-04 84 0.00 2021-07-05 89 0.00 2021-07-06 97 0.55 2021-07-07 97 T 2021-07-08 88 0.08 2021-07-09 91 1.60 2021-07-10 86 T 2021-07-11 82 T 2021-07-12 93 0.69 2021-07-13 78 0.01 2021-07-14 93 0.07
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91° at Newark and 90° at Caldwell. So they are both near the top of the list for 90° days by mid-July with 21. The observational record at Caldwell only goes back to 1999. Time Series Summary for CALDWELL ESSEX COUNTY AP, NJ Click column heading to sort ascending, click again to sort descending. Rank Ending Date Number of Days Max Temperature >= 90 Jan 1 to Jul 14 Missing Count 1 2021-07-14 21 1 2 2012-07-14 17 4 3 2020-07-14 14 0 - 2010-07-14 14 0 Time Series Summary for NEWARK LIBERTY INTL AP, NJ Click column heading to sort ascending, click again to sort descending. Rank Ending Date Number of Days Max Temperature >= 90 Jan 1 to Jul 14 Missing Count 1 2010-07-14 23 0 2 1993-07-14 22 0 3 1994-07-14 21 0 - 1987-07-14 21 0 2021-07-14 21 0 4 1966-07-14 20 0
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Looks like the usual warm spots will have chance at another heatwave next several days. The Euro has the 850s reaching +16c today and tomorrow with breaks of sun. The HRRR also shows 90° at the usual warm spots today. The Euro has 850s peaking near +18 C on Friday which support mid 90s if we can get enough sun. Humidity levels will be high with dew points back into the 70s. Today Friday
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Tracking The 3”+ Heavy Rainfall Events Since 2010
bluewave replied to bluewave's topic in New York City Metro
Updated for 3.46 in Ringwood, NJ. Station Number: NJ-PS-22 Station Name: Ringwood 3.0 SSE Observation Date 7/13/2021 8:30 AM Submitted 7/13/2021 8:36 AM Total Precip Amount 3.46 in. -
Sun July 11-Mon July 19 Pockets of FF/SVR and a modest heat wave
bluewave replied to wdrag's topic in New York City Metro
A storm chaser did a great job documenting the water rescues in Bensalem, PA.- 382 replies
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The warm front will come back north tomorrow with more 90° heat in the warm spots and widespread 70s dew points.
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They were going to close the site in the early 1990s when the NWS moved. So maybe they made the trade off just to keep the site going. But how hard can it be to manage the tree growth around the ASOS? https://vlab.noaa.gov/web/nws-heritage/-/100-years-of-weather-observations-at-belvedere-castle-in-central-park http://www.weather2000.com/ASOS/NYC_ASOS.html
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The big story is how much lower the sea ice extent is on this date than in 2013. That was the last time we had Arctic pressures nearly as low as this season so far. But as I noted in an earlier post, this season is much warmer on several fronts than 2013. The average pressure is the lowest since before the big 2007 shift. 1991 995.748 1992 993.569 1993 997.705 1994 989.170 1995 993.511 1996 993.554 1997 997.323 1998 999.264 1999 989.996 2000 991.390 2001 994.393 2002 991.603 2003 995.133 2004 998.124 2005 998.190 2006 989.570 2007 998.159 2008 995.824 2009 998.525 2010 996.097 2011 998.625 2012 996.246 2013 990.278 2014 997.406 2015 993.244 2016 992.118 2017 992.755 2018 992.805 2019 997.164 2020 992.695 2021 988.088