July 2025 Discussion-OBS - seasonable summer variability

[SACRUS]

 

76 / 73 .  Clear.    Onshore flow today keeps it cooler before next round of rain on Sunday.  Mainly 80s today some of the inland hotter areas could get to 90 further inland.  Tomorrow - cloudy - storms could dump 1-3 inches of rain.  Heat back Mon - Wed (perhaps Thu) with front on Thursday. Do see seabreeze and more E component to flow Mon-Wed so heat inland - could be tough along the coasts and city.  Could be next slow moving boundary Thu - Fri with some storms and rain >2-3 inches.  Beyond there Cooler 8/1 - 8/6 lots of onshore flow - keeping it near normal overall.  Flow comes around with warm-hot / humid overall by 8/7 or 8th.   Beyond there much warmer as ridge expandings east and heat building to our west.

 

[SACRUS]

 

 

Records:

Highs:

EWR: 99 (2005)
NYC: 98 (1940)
LGA: 98 (1940)
JFK: 94 (1982)
New Brnswck: 98 (1999)

Lows:

EWR: 57 (1953)
NYC: 55 (1920)
LGA: 62 (1976)
JFK: 58 (1976)
New Brnswck: 50 (1976)

 

Historical:

 

1819 - Twin cloudbursts of fifteen inches struck almost simultaneously at Catskill, NY, and Westfield, MA. Flash flooding resulted in enormous erosion. (David Ludlum)

 

1874: Torrential rainfall brought flash flooding to Pittsburg, Pennsylvania.

 

1875: A windstorm, possibly a tornado, ripped through Erie, PA killing 134 people and causing $500,000 dollars damage. (Ref. Wilson Wx. History)
 

1890: During the morning hours, an estimated F3 tornado went through the southern part of Lawrence, Massachusetts. The tornado left 500 people homeless as the tornado destroyed 35 homes and damaged 60 others. 

1897: Jewel, Maryland received 14.75 inches of rain in a 24 hour period. This record is currently the oldest, state rainfall record in the United States. All other state rainfall records are in the 1900s and 2000s.

1931: A swarm of grasshoppers descends on crops throughout the American heartland, devastating millions of acres. Iowa, Nebraska, and South Dakota, already in the midst of a bad drought, suffered tremendously from this disaster.

1943 - Tishomingo, OK, baked in the heat as the mercury soared to 121 degrees, a state record. (The Weather Channel)

1960 - The temperature at Salt Lake City, UT, hit 107 degrees, an all-time record high for that location. (The Weather Channel)

 

1974: Cleghorn, La.--A 27-year-old man was killed by lightning while working near a metal tool shed. (Ref. Lightning-The Underrated Killer.pdf)

1977: Canadian high pressure brought record cold temperatures to parts of the Great Lakes region. Record lows included: Madison, WI: 46°, Muskegon, MI: 46°, Green Bay, WI: 47°, Flint, MI: 48, Toledo, OH: 50°, Detroit, MI: 50° and Springfield, IL: 52°. (Ref. Wilson Wx. History)

1979: Tropical Storm Claudette stalled over Alvin, Texas, inundating the town with 45 inches of rain in 42 hours. The total included 43 inches in 24 hours, which is the maximum 24-hour rainfall in American history.

1986: Strong thunderstorms hit north central South Dakota. One of these storms was a very efficient rain producer as it dumped 2.25 inches of rain in 10 minutes near McLaughlin. Strong thunderstorm winds did damage near Mitchell on that same day. The strong winds destroyed a barn, a roof, and windmill in the Mitchell area. (Ref. Wilson Wx. History)

1987 - Thunderstorms developing along a cold front produced hail two inches in diameter in McHenry County, IL, and wind gusts to 70 mph at Auburn, ME. A wind gust of 90 mph was recorded at Blairstown, NJ, before the anemometer broke. The high winds were associated with a small tornado. The record high of 88 degrees at Beckley, WV, was their sixth in a row. (The National Weather Summary) (Storm Data)

1988 - Thunderstorms produced large hail and damaging winds in the Middle Atlantic Coast Region, and in the south central U.S. Eight cities in the northwestern and north central U.S. reported record high temperatures for the date. Salem, OR, hit 103 degrees. (The National Weather Summary)

1989 - Morning thunderstorms produced heavy rain in southeastern Texas, with more than three inches reported at the Widllife Refuge in southwestern Chambers County. Evening thunderstorms produced severe weather in Montana, with wind gusts to 62 mph reported at Helena. Eight cities from Maine to Minnesota reported record high temperatures for the date, including Newark, NJ, with a reading of 99 degrees. (The National Weather Summary) (Storm Data)

 

1993: Pueblo, Colorado: Record high for date, 101°F and record low for date 52°F, set on same day! (Ref. WxDoctor) The Great Mississippi River Flood of 1993: Rising water stopped all rail traffic through Kansas City, MO. A tornado moved along a 4 mile track across parts of northwest Scottsbluff, NE. The tornado destroyed a furniture store and about 8 homes, with about $3 million dollars in damage. (Ref. Wilson Wx. History)

2000: A line of thunderstorms developed in Iowa and pushed southward into northwest Missouri. The early storms produced large hail in the northwest corner of Missouri. Wind gusts in excess of 70 mph and widespread wind damage occurred from the St. Joseph area southward to the Kansas City metro and other locations in west central Missouri. The highway department reported downed trees up to 4 feet in diameter. A building under construction in an industrial park sustained over $1 million dollars in damage. (Ref. Wilson Wx. History)

2001: Two Boy Scouts were injured by lightning while at a campsite during the National Scout Jamboree at Fort A.P. Hill in Caroline County, VA.
(Ref. Lightning - Virginia Weather History) Up to 8 inches of rain fell in about 3 to 4 hours across Copiah County, Mississippi. Various portions of Rankin County had significant flooding. In Pearl, several roads had to be closed. Water also covered several roads in Brandon where up to six inches of rain fell in a few hours. (Ref. Wilson Wx. History)

2006: Death Valley National Park, California: The low temperature for the day bottoms out at a scorching 104°F. The day's high was only 116°F. Fresno, CA recorded their 5th straight night with a minimum temperature of 80° or better. This is their longest such streak on record. (Ref. WxDoctor)

2009: Rio Grande Valley, Texas: Since June 12th, San Antonio has registered 31 days with temperatures in the 100s °F. Across the Rio Grande Valley, extreme heat in McAllen this month has been staggering with 20 days of record-setting high temperatures. This day made it the 11th day in a row that new record highs were set. (Ref. WxDoctor)

[LibertyBell]

6 minutes ago, SACRUS said:

 

 

Records:

Highs:

EWR: 99 (2005)
NYC: 98 (1940)
LGA: 98 (1940)
JFK: 94 (1982)
New Brnswck: 98 (1999)

Lows:

EWR: 57 (1953)
NYC: 55 (1920)
LGA: 62 (1976)
JFK: 58 (1976)
New Brnswck: 50 (1976)

 

Historical:

 

1819 - Twin cloudbursts of fifteen inches struck almost simultaneously at Catskill, NY, and Westfield, MA. Flash flooding resulted in enormous erosion. (David Ludlum)

 

1874: Torrential rainfall brought flash flooding to Pittsburg, Pennsylvania.

 

1875: A windstorm, possibly a tornado, ripped through Erie, PA killing 134 people and causing $500,000 dollars damage. (Ref. Wilson Wx. History)
 

1890: During the morning hours, an estimated F3 tornado went through the southern part of Lawrence, Massachusetts. The tornado left 500 people homeless as the tornado destroyed 35 homes and damaged 60 others. 

1897: Jewel, Maryland received 14.75 inches of rain in a 24 hour period. This record is currently the oldest, state rainfall record in the United States. All other state rainfall records are in the 1900s and 2000s.

1931: A swarm of grasshoppers descends on crops throughout the American heartland, devastating millions of acres. Iowa, Nebraska, and South Dakota, already in the midst of a bad drought, suffered tremendously from this disaster.

1943 - Tishomingo, OK, baked in the heat as the mercury soared to 121 degrees, a state record. (The Weather Channel)

1960 - The temperature at Salt Lake City, UT, hit 107 degrees, an all-time record high for that location. (The Weather Channel)

 

1974: Cleghorn, La.--A 27-year-old man was killed by lightning while working near a metal tool shed. (Ref. Lightning-The Underrated Killer.pdf)

1977: Canadian high pressure brought record cold temperatures to parts of the Great Lakes region. Record lows included: Madison, WI: 46°, Muskegon, MI: 46°, Green Bay, WI: 47°, Flint, MI: 48, Toledo, OH: 50°, Detroit, MI: 50° and Springfield, IL: 52°. (Ref. Wilson Wx. History)

1979: Tropical Storm Claudette stalled over Alvin, Texas, inundating the town with 45 inches of rain in 42 hours. The total included 43 inches in 24 hours, which is the maximum 24-hour rainfall in American history.

1986: Strong thunderstorms hit north central South Dakota. One of these storms was a very efficient rain producer as it dumped 2.25 inches of rain in 10 minutes near McLaughlin. Strong thunderstorm winds did damage near Mitchell on that same day. The strong winds destroyed a barn, a roof, and windmill in the Mitchell area. (Ref. Wilson Wx. History)

1987 - Thunderstorms developing along a cold front produced hail two inches in diameter in McHenry County, IL, and wind gusts to 70 mph at Auburn, ME. A wind gust of 90 mph was recorded at Blairstown, NJ, before the anemometer broke. The high winds were associated with a small tornado. The record high of 88 degrees at Beckley, WV, was their sixth in a row. (The National Weather Summary) (Storm Data)

1988 - Thunderstorms produced large hail and damaging winds in the Middle Atlantic Coast Region, and in the south central U.S. Eight cities in the northwestern and north central U.S. reported record high temperatures for the date. Salem, OR, hit 103 degrees. (The National Weather Summary)

1989 - Morning thunderstorms produced heavy rain in southeastern Texas, with more than three inches reported at the Widllife Refuge in southwestern Chambers County. Evening thunderstorms produced severe weather in Montana, with wind gusts to 62 mph reported at Helena. Eight cities from Maine to Minnesota reported record high temperatures for the date, including Newark, NJ, with a reading of 99 degrees. (The National Weather Summary) (Storm Data)

 

1993: Pueblo, Colorado: Record high for date, 101°F and record low for date 52°F, set on same day! (Ref. WxDoctor) The Great Mississippi River Flood of 1993: Rising water stopped all rail traffic through Kansas City, MO. A tornado moved along a 4 mile track across parts of northwest Scottsbluff, NE. The tornado destroyed a furniture store and about 8 homes, with about $3 million dollars in damage. (Ref. Wilson Wx. History)

2000: A line of thunderstorms developed in Iowa and pushed southward into northwest Missouri. The early storms produced large hail in the northwest corner of Missouri. Wind gusts in excess of 70 mph and widespread wind damage occurred from the St. Joseph area southward to the Kansas City metro and other locations in west central Missouri. The highway department reported downed trees up to 4 feet in diameter. A building under construction in an industrial park sustained over $1 million dollars in damage. (Ref. Wilson Wx. History)

2001: Two Boy Scouts were injured by lightning while at a campsite during the National Scout Jamboree at Fort A.P. Hill in Caroline County, VA.
(Ref. Lightning - Virginia Weather History) Up to 8 inches of rain fell in about 3 to 4 hours across Copiah County, Mississippi. Various portions of Rankin County had significant flooding. In Pearl, several roads had to be closed. Water also covered several roads in Brandon where up to six inches of rain fell in a few hours. (Ref. Wilson Wx. History)

2006: Death Valley National Park, California: The low temperature for the day bottoms out at a scorching 104°F. The day's high was only 116°F. Fresno, CA recorded their 5th straight night with a minimum temperature of 80° or better. This is their longest such streak on record. (Ref. WxDoctor)

2009: Rio Grande Valley, Texas: Since June 12th, San Antonio has registered 31 days with temperatures in the 100s °F. Across the Rio Grande Valley, extreme heat in McAllen this month has been staggering with 20 days of record-setting high temperatures. This day made it the 11th day in a row that new record highs were set. (Ref. WxDoctor)

wow 1993 was full of historical records all over the country!!!

 

1993: Pueblo, Colorado: Record high for date, 101°F and record low for date 52°F, set on same day! (Ref. WxDoctor) The Great Mississippi River Flood of 1993: Rising water stopped all rail traffic through Kansas City, MO. A tornado moved along a 4 mile track across parts of northwest Scottsbluff, NE. The tornado destroyed a furniture store and about 8 homes, with about $3 million dollars in damage. (Ref. Wilson Wx. History)

[LibertyBell]

33 minutes ago, wdrag said:

Not sure if anyone is noticing... near 100 possible central LI Wed... EC past several cycles.  then its all done for 10 days. 

Yes, I think 100 degrees could get to JFK, on a WNW wind JFK is the regional hot spot.  Tuesday too.

[SACRUS]

 

Two main focus areas for rain Sunday / Thursday with front - that could see numbers increase with a slow strungout boundary

 

[Sundog]

12 hours ago, SACRUS said:

 

https://forecast.weather.gov/data/obhistory/KLGA.html

Still not updating for me.  Is there another source?

 

This is where I got it from:

https://www.weather.gov/wrh/timeseries?site=Klga

 

[TWCCraig]

Visibility down to 5 miles in Boston with smoke mixing down to the surface. Some of that will mix into the area later. This smoke isn't elevated

HRRR near surface smoke for 4pm:

[SACRUS]

 

 

Can see that smoke and the NE flow will transport it this a way

 

[SACRUS]

 

Nearest rain into Pitt/W-PA

 

[FPizz]

96 yesterday 

[SACRUS]

 

82 / 66 DT dropped a bit from the morning

 

[IrishRob17]

“Delightful” strong odor of wildfire out there today. 

[nycwinter]

what a refreshing  day it today those northeast winds this time of year always feel good..

[bluewave]

35 minutes ago, IrishRob17 said:

“Delightful” strong odor of wildfire out there today. 

Yeah, easily the worst air quality of July so far here just east of HVN.

Jul 26, 11:20 am

84

61

45

84

NE

8

4.00

Haze

 

[nycwinter]

23 hours ago, MJO812 said:

Its disgusting outside . Feel bad for my wife since she is pregnant. 

93 here

some people plan vacations in advance  for the weather you could have you know planned it as well

[jm1220]

Hazy/smoky. 

[forkyfork]

i'm at the beach and the sea breeze is bringing the smoke in. really weird

[nycwinter]

if you live in nyc you are use to smoke from many causes..

[IrishRob17]

11 minutes ago, nycwinter said:

if you live in nyc you are use to smoke from many causes..

Like the smoke you blow with all your gloves and hoodie references...

[ag3]

16 hours ago, SACRUS said:

 

LGA was 99 

 

My station in Whitestone hit 99.7 degrees. So it matches LGA.

[SACRUS]

 

85 / 62 - smoky 

[Nibor]

 

No smoke smell in Jersey City but definitely can see the smoke. 

[Cfa]

Smoke very apparent in central Suffolk. Might be the smokiest it’s been since the Canadian wildfire smoke 2 years ago, nowhere near as bad as that right now though.

[rclab]

1 hour ago, nycwinter said:

if you live in nyc you are use to smoke from many causes..

 

1 hour ago, IrishRob17 said:

Like the smoke you blow with all your gloves and hoodie references...

Perhaps too many. As always….

 

[jm1220]

32 minutes ago, Cfa said:

Smoke very apparent in central Suffolk. Might be the smokiest it’s been since the Canadian wildfire smoke 2 years ago, nowhere near as bad as that right now though.

Can see the smoke blowing in from the east and higher clouds from the west. 

[donsutherland1]

2 hours ago, jm1220 said:

Hazy/smoky. 

I avoided the forecast smoke in Downeast Maine. The smoke has passed west of the Camden-Rockland areas. It’s a gorgeous sun-filled day with a refreshing sea breeze.

[IrishRob17]

39 minutes ago, Cfa said:

Smoke very apparent in central Suffolk. Might be the smokiest it’s been since the Canadian wildfire smoke 2 years ago, nowhere near as bad as that right now though.

Was thinking the same thing up here, not as bad but I think that was the last time I could see the smoke across the yard at ground level. 

[bluewave]

Unfortunately, the upcoming heatwave looks like another where the urban corridor will be 90° at 11pm after getting near 100° during the day. 
 

 

[LibertyBell]

48 minutes ago, Cfa said:

Smoke very apparent in central Suffolk. Might be the smokiest it’s been since the Canadian wildfire smoke 2 years ago, nowhere near as bad as that right now though.

it's not that bad here right now, just like a slight haze.

[LibertyBell]

2 minutes ago, bluewave said:

Unfortunately, the upcoming heatwave looks like another where the urban corridor will be 90° at 11pm after getting near 100° during the day. 
 

 

WNW flow means 100 here during the day :-)