TheClimateChanger Posted July 20, 2023 Share Posted July 20, 2023 23 hours ago, forkyfork said: we get endless uhi posts whenever newark breaks a record but nobody mentions how we turned the entire great plains into a parking lot in the 30s It's crazy to see how this urban heat island effect keeps growing and even affecting places hundreds of miles from any city, such as McKean County, Pennsylvania. Link to comment Share on other sites More sharing options...
bluewave Posted July 20, 2023 Share Posted July 20, 2023 1 hour ago, TheClimateChanger said: It's crazy to see how this urban heat island effect keeps growing and even affecting places hundreds of miles from any city, such as McKean County, Pennsylvania. We are in part of the country where NYC UHI became established in the early 1900s and expanded to the suburbs 1950-1980. So all of our warming since 1980 is CC. Places like Phoenix and Las Vegas have seen the double whammy of UHI expansion and CC since 1970. UHI around NYC was pretty strong by the late 1800s. Data for August 1, 1896 through August 31, 1896Click column heading to sort ascending, click again to sort descending. State Name Station Type Number of Days Min Temperature >= 70 NY NY CITY CENTRAL PARK WBAN 16 NY BRONX COOP 12 NJ NEWARK COOP 11 NJ PATERSON COOP 11 NJ PLAINFIELD COOP 10 NY WORLD TRADE CENTER WBAN 10 NJ ELIZABETH COOP 9 CT BRIDGEPORT COOP 9 NY WEST POINT COOP 7 NY PORT JERVIS COOP 6 NY SETAUKET STRONG COOP 6 CT MIDDLETOWN 4 W COOP 6 CT NEW LONDON COOP 5 CT COLCHESTER 2 W COOP 5 NY BRENTWOOD COOP 4 CT WATERBURY ANACONDA COOP 4 CT NORWALK COOP 3 NJ CHARLOTTEBURG RESERVOIR COOP 1 1 1 Link to comment Share on other sites More sharing options...
donsutherland1 Posted July 20, 2023 Share Posted July 20, 2023 Some showers or thundershowers are likely tomorrow. Some of the thunderstorms could be severe. Afterward, a fair and dry weekend will follow. An extreme heat event continues to grip the Southwest. Cities such as Las Vegas, Phoenix, and Tucson could see readings continue to rise toward or above their record daily levels over the next few days. Phoenix reached a sizzling 119° today on Day 21 of its longest heatwave on record. That smashed the daily record of 114° from 1978. In addition, Phoenix had a mean temperature of 105° or above for the fifth time this month. No year had more than two such days. The ENSO Region 1+2 anomaly was +3.4°C and the Region 3.4 anomaly was +1.1°C for the week centered around July 12. For the past six weeks, the ENSO Region 1+2 anomaly has averaged +2.80°C and the ENSO Region 3.4 anomaly has averaged +0.97°C. El Niño conditions have developed and will likely continue to strengthen through at least the summer. The probability of an East-based El Niño event has increased. The SOI was -18.65 today. The preliminary Arctic Oscillation (AO) was +1.035 today. On July 18 the MJO was in Phase 3 at an amplitude of 0.509 (RMM). The July 17-adjusted amplitude was 0.455 (RMM). Based on sensitivity analysis applied to the latest guidance, there is an implied 75% probability that New York City will have a warmer than normal July (1991-2020 normal). July will likely finish with a mean temperature near 79.1° (1.6° above normal). 1 Link to comment Share on other sites More sharing options...
Rmine1 Posted July 20, 2023 Share Posted July 20, 2023 The line in western NY/PA is tasty. Odds it holds? 1 Link to comment Share on other sites More sharing options...
Gravity Wave Posted July 21, 2023 Share Posted July 21, 2023 6 minutes ago, Rmine1 said: The line in western NY/PA is tasty. Odds it holds? HRRR says yes, although in a significantly weakened state. Link to comment Share on other sites More sharing options...
Picard Posted July 21, 2023 Share Posted July 21, 2023 1 hour ago, Rmine1 said: The line in western NY/PA is tasty. Odds it holds? Possible Derecho if it holds far enough? Link to comment Share on other sites More sharing options...
Tatamy Posted July 21, 2023 Share Posted July 21, 2023 Timing of this feature looks to be 1:30 - 2:00 AM for when it reaches NW NJ and Warren Cty. Link to comment Share on other sites More sharing options...
Tatamy Posted July 21, 2023 Share Posted July 21, 2023 Mt. Holly issues severe thunderstorm watch for all of its PA counties. 1 Link to comment Share on other sites More sharing options...
FPizz Posted July 21, 2023 Share Posted July 21, 2023 7 minutes ago, Tatamy said: Mt. Holly issues severe thunderstorm watch for all of its PA counties. Link to comment Share on other sites More sharing options...
Picard Posted July 21, 2023 Share Posted July 21, 2023 6 minutes ago, Tatamy said: Mt. Holly issues severe thunderstorm watch for all of its PA counties. Western NJ is included too. Nasty looking line. Haven't seen one this well formed in quite some time. I'll have the flashlights and clothes ready in case I need to hop out of bed quickly. Hopefully it weakens some. Link to comment Share on other sites More sharing options...
SACRUS Posted July 21, 2023 Share Posted July 21, 2023 7/20 TEB: 92 EWR: 88 PHL: 88 NYC: 88 New Brnswck: 87 TTN: 86 LGA: 85 ISP: 85 JFK: 84 BLM: 83 ACY: 83 Link to comment Share on other sites More sharing options...
SACRUS Posted July 21, 2023 Share Posted July 21, 2023 Records Highs: EWR: 102 (1980) NYC: 101 (1980) LGA: 101 (1991) Lows: EWR: 59 (1997) NYC: 55 (1890) LGA: 61 (1997) Historical: 1915: A record high temperature of 115 degrees occurred in Yosemite Valley at the National Park Headquarters, California (around 4,000 feet elevation). This reading was the warmest day in a streak of 7 consecutive days of 110 degrees or higher at Yosemite Valley from the 19th through the 25th. 1930 - The temperature at Washington D.C. soared to an all-time record of 106 degrees. The next day Millsboro reached 110 degrees to set a record for the state of Delaware. July 1930 was one of the hottest and driest summers in the U.S., particularly in the Missouri Valley where severe drought conditions developed. Toward the end of the month state records were set for Kentucky with 114 degrees, and Mississippi with 115 degrees. (David Ludlum) 1934 - The temperature at Keokuk, IA, soared to 118 degrees to establish a state record. (The Weather Channel) 1953 - Twenty-two inches of hail reportedly fell northeast of Dickinson, ND. (The Weather Channel) 1986 - The temperature at Charleston, SC, hit 104 degrees for the second day in a row to tie their all-time record high. (The Weather Channel) 1977: A flash flood hits Johnstown, Pennsylvania, on this day in 1977, killing 84 people and causing millions of dollars in damages. This flood came 88 years after the infamous Great Flood of 1889 that killed more than 2,000 people in Johnstown. 1987 - Thunderstorms produced severe weather across Minnesota, Wisconsin and Michigan. Thunderstorms produced wind gusts to 87 mph at Mosinee, WI, and strong thunderstorm winds capsized twenty-six boats on Grand Traverse Bay drowning two women. Thunderstorms produced nine inches of rain at Shakopee, MN, with 7.83 inches reported in six hours at Chaska, MN. Thunderstorms in north central Nebraska produced hail as large as golf balls in southwestern Cherry County, which accumulated to a depth of 12 inches. (The National Weather Summary) (Storm Data) 1988 - The temperature at Redding, CA, soared to an all-time record high of 118 degrees. Showers and thunderstorms produced much needed rains from New England to southern Texas. Salem, IN, was deluged with 7.2 inches of rain resulting in flash flooding. (The National Weather Summary) 1989 - Showers and thunderstorms in the Middle Atlantic Coast Region soaked Wilmington, DE, with 2.28 inches of rain, pushing their total for the period May through July past the previous record of 22.43 inches. Heavy rain over that three month period virtually wiped out a 16.82 inch deficit which had been building since drought conditions began in 1985. Thunderstorms in central Indiana deluged Lebanon with 6.50 inches of rain in twelve hours, and thunderstorms over Florida produced wind gusts to 84 mph at Flagler Beach. (The National Weather Summary) (Storm Data) 2005: Hurricane Emily made landfall in northern Mexico. When the central pressure fell to 29.43 inches of mercury, and its sustained winds reached 160 mph on the 16th, Emily became the strongest hurricane ever to form before August, breaking a record set by Hurricane Dennis just six days before. It was also the earliest Category 5 hurricane ever recorded in the Atlantic basin, beating Hurricane Allen's old record by nearly three weeks. Link to comment Share on other sites More sharing options...
SACRUS Posted July 21, 2023 Share Posted July 21, 2023 Link to comment Share on other sites More sharing options...
Stormlover74 Posted July 21, 2023 Author Share Posted July 21, 2023 Just landed in Charleston so going to miss whatever comes through tomorrow am. Sitting on the tarmac due to lightning. Landed just as the storm was moving out 1 Link to comment Share on other sites More sharing options...
TriPol Posted July 21, 2023 Share Posted July 21, 2023 Will this line hold together as it approaches NYC? Link to comment Share on other sites More sharing options...
Rtd208 Posted July 21, 2023 Share Posted July 21, 2023 High for the day yesterday was 90 here. Current temp 72/DP 70/RH 93% Link to comment Share on other sites More sharing options...
Will - Rutgers Posted July 21, 2023 Share Posted July 21, 2023 some infrequent heat lightning i’m storm chasing from my balcony, line just about entering hunterdon. i assume this line is the entirety of the friday storm threat Link to comment Share on other sites More sharing options...
SnoSki14 Posted July 21, 2023 Share Posted July 21, 2023 2 hours ago, TriPol said: Will this line hold together as it approaches NYC? It's already weakening so unlikely. Timing isn't great Link to comment Share on other sites More sharing options...
Tatamy Posted July 21, 2023 Share Posted July 21, 2023 Line has passed through here. Nothing out of the ordinary. 0.33” collected in the rain gauge. About an hour’s worth of CTC that I actually slept through. Highest wind gust 16 mph. Yawn. Link to comment Share on other sites More sharing options...
stemwinder Posted July 21, 2023 Share Posted July 21, 2023 Line has passed through Princeton area, much weaker than earlier radar indicated. Back to bed for a bit. Link to comment Share on other sites More sharing options...
Rmine1 Posted July 21, 2023 Share Posted July 21, 2023 Yawn. SNJ FTW. Most won’t even see a drop 3 Link to comment Share on other sites More sharing options...
BxEngine Posted July 21, 2023 Share Posted July 21, 2023 5 minutes ago, Rmine1 said: Yawn. SNJ FTW. Most won’t even see a drop go back to bed. Link to comment Share on other sites More sharing options...
LongBeachSurfFreak Posted July 21, 2023 Share Posted July 21, 2023 Pretty meh on the uws, couple rumbles and some moderate rain. What do you expect from a line that survived from yesterday’s heating. We should have more Chances later when instability rebuilds. Link to comment Share on other sites More sharing options...
IrishRob17 Posted July 21, 2023 Share Posted July 21, 2023 .16" worth of drops up here, way north of SNJ. Link to comment Share on other sites More sharing options...
Allsnow Posted July 21, 2023 Share Posted July 21, 2023 .15 meh Link to comment Share on other sites More sharing options...
steve392 Posted July 21, 2023 Share Posted July 21, 2023 Decent quick hitting storm in little ferry. Lots of rain and thunder. Will check rain gauge later. Link to comment Share on other sites More sharing options...
Allsnow Posted July 21, 2023 Share Posted July 21, 2023 Short term models have nothing for later today Link to comment Share on other sites More sharing options...
FPizz Posted July 21, 2023 Share Posted July 21, 2023 .20 Link to comment Share on other sites More sharing options...
Allsnow Posted July 21, 2023 Share Posted July 21, 2023 3 hours ago, Will - Rutgers said: some infrequent heat lightning i’m storm chasing from my balcony, line just about entering hunterdon. i assume this line is the entirety of the friday storm threat 5.32 of rain so far this month at Rutgers 1 Link to comment Share on other sites More sharing options...
jm1220 Posted July 21, 2023 Share Posted July 21, 2023 Maybe a quick 0.10-0.15 here. Link to comment Share on other sites More sharing options...
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