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September 2024 General Discussion


Geoboy645
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3 hours ago, Danny8 said:

image.jpeg.c9aa933694c899554d1764ecb52c3708.jpeg
 

For Chicago

Looks like Detroit is also at an 11-day streak over 80 but I’m not sure if that is the longest in September 

The streak at Detroit is up to 12 days now, and is forecast to reach 14 days. 12 days matches the 120th longest streak of 80F+ max temps of all time [at any time of the year]. Should this streak reach 14 days, there have only been 88 streaks longer than that in the threaded record.

The vast majority of 80+ streaks of 10 or more days occurred in meteorological summer, particularly July and/or August. Of all streaks of 10 or more days of 80+, only 19 have extended into and/or occurred entirely within the month of September - the vast majority ending very early on in the month and carrying over from August. The longest streak is 24 days, ending 9/6/1983.

Prior to 2024, the longest streak entirely in the month of September is 10 days - being the last 10 days of the 18-day streak ending on 9/10/2002, as well as 10 day streaks ending 9/11/1961, 9/10/1933 and 9/11/1884. Prior to 2024, there are no instances of a streak of 10 or more days of 80F+ extending later than September 11. Also of note, there are only 19 instances of a streak of 10+ days of 80 or more which has extended into September in the entire threaded record, and two of them have occurred this year. A 10-day streak ended on September 1, 2024, and currently a 12-day streak is ongoing.

  1. 24 days, ending 9/6/1983
  2. 20 days, ending 9/3/2022
  3. 18 days, ending 9/10/2002
  4. 17 days, ending 9/7/2012
  5. 17 days, ending 9/7/1969
  6. 16 days, ending 9/4/1953
  7. 16 days, ending 9/8/1881
  8. 15 days, ending 9/1/2013
  9. 15 days, ending 9/1/1980
  10. 13 days, ending 9/6/1973
  11. 12 days, ending 9/20/2024 [ongoing]
  12. 12 days, ending 9/4/1937
  13. 11 days, ending 9/9/2015
  14. 10 days, ending 9/1/2024
  15. 10 days, ending 9/4/1966
  16. 10 days, ending 9/11/1961
  17. 10 days, ending 9/10/1933
  18. 10 days, ending 9/3/1889
  19. 10 days, ending 9/11/1884
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Running the same analysis at Chicago.

The current streak of 80F+ readings is up to 12 days, which is tied for 92nd longest [of any time of the year] and is forecast to reach 13 days [which would be tied for 75th longest at any time of the year].

As far as September is concerned at Chicago. The latest streaks of 10 or more days at or above 80F are: 13 days, ending 9/13/2005 [being the last 13 days of a 20-day streak]; 12 days, ending 9/15/1978; and 10 days, ending 9/17/1952, 9/10/2002 [last 10 days of a 12-day streak] and 9/10/1971 [last 10 days of a 13-day streak].

  1. 34 days, ending 9/6/1995 [4th longest of all time]
  2. 24 days, ending 9/5/1983 [14th longest of all time]
  3. 20 days, ending 9/13/2005
  4. 20 days, ending 9/6/1980
  5. 19 days, ending 9/8/1960
  6. 15 days, ending 9/3/1953
  7. 13 days, ending 9/10/1971
  8. 12 days, ending 9/20/2024 [ongoing]
  9. 12 days, ending 9/10/2002
  10. 12 days, ending 9/15/1978
  11. 12 days, ending 9/5/1973
  12. 12 days, ending 9/4/1889
  13. 11 days, ending 9/8/1996
  14. 11 days, ending 9/1/1969
  15. 11 days, ending 9/4/1937
  16. 10 days, ending 9/4/1966
  17. 10 days, ending 9/3/1961
  18. 10 days, ending 9/17/1952
  19. 10 days, ending 9/9/1922

 

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This has been one of the best stretches of Sep wx in my life, perhaps even better than anything of Sep 2009,2014,2017 here. Sep 2022 was also good at the start being so sunny. We have not had as long a stretch of clear skies with minimal clouds in all of 2024 so having such in mid-Sep is neat. Started around Tues last week that's 10 days of stellar, pleasant bliss. Blessed and thrilled but now stupid overcast has started mid-day and I'm cowed how the extended is evolving.

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18 minutes ago, OrdIowPitMsp said:

Local NWS is saying this will likely be the driest September on record in Minneapolis after we got skunked and missed out on the storms yesterday. 
 

Month to date rainfall is 0.06” with nothing in the forecast. 

Next week's going to be a wash. If we're going to be active all next week, we might as well have a cutoff low because GFS is hinting it during a good portion of next week into next weekend followed by potential tropical remnants around the end of the month.

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14 hours ago, hawkeye_wx said:

It's too hot and dry.  Cedar Rapids hit 91º today, with full sun and no wind.  Like Cyclone, we got no rain last night.  The Sunday wave is fading on the models, so late Saturday is going to have to deliver.

Not feeling overly optimistic for this area, as the heavier rains look very hit or miss-ish later tonight and tomorrow out this way.  

Looking beyond, looking dry/boring again after this system moves off.  Hopefully a more active pattern can develop as we move through October.

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The actual weather around here reminds me of 2017. I know August of 2017 was much cooler overall than this past August but it was similar in the sense that there was some bonified cool air around later in the month this year and in 2017, plus the beginning of September stayed cool in both years. After that, there was an extended period of unseasonable warmth just like this year. It was also a late developing Nina. 

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On 9/20/2024 at 1:57 PM, TheClimateChanger said:

Running the same analysis at Chicago.

The current streak of 80F+ readings is up to 12 days, which is tied for 92nd longest [of any time of the year] and is forecast to reach 13 days [which would be tied for 75th longest at any time of the year].

As far as September is concerned at Chicago. The latest streaks of 10 or more days at or above 80F are: 13 days, ending 9/13/2005 [being the last 13 days of a 20-day streak]; 12 days, ending 9/15/1978; and 10 days, ending 9/17/1952, 9/10/2002 [last 10 days of a 12-day streak] and 9/10/1971 [last 10 days of a 13-day streak].

  1. 34 days, ending 9/6/1995 [4th longest of all time]
  2. 24 days, ending 9/5/1983 [14th longest of all time]
  3. 20 days, ending 9/13/2005
  4. 20 days, ending 9/6/1980
  5. 19 days, ending 9/8/1960
  6. 15 days, ending 9/3/1953
  7. 13 days, ending 9/10/1971
  8. 12 days, ending 9/20/2024 [ongoing]
  9. 12 days, ending 9/10/2002
  10. 12 days, ending 9/15/1978
  11. 12 days, ending 9/5/1973
  12. 12 days, ending 9/4/1889
  13. 11 days, ending 9/8/1996
  14. 11 days, ending 9/1/1969
  15. 11 days, ending 9/4/1937
  16. 10 days, ending 9/4/1966
  17. 10 days, ending 9/3/1961
  18. 10 days, ending 9/17/1952
  19. 10 days, ending 9/9/1922

 

yep. happens,obv. I've enjoyed the past two weeks. But hoping for a transition to fall weather now.

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Madison is up to 3.20" for a daily total so far, with a few more hours of rain to come. This makes this year one of only four years to record multiple 3"+ days in year with 1869, 1878, and 2007 being the other ones. This also puts us over 40" of rain for the year, which makes this year a top 15 wettest on record. Notably before 1990, we only recorded 40" of rain in a year in the 1880-85 period and 1959. And now this is the 8th time in the last 34 years that we have recorded 40"+. We have recorded almost as much rain since Midnight as we had recorded in the over two months prior. Crazy. 

image.png

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Looks like the final total will be 3.97" for today at Madison. Breaks the daily and monthly record set on this date in 2009, and is a top 5(!!!) daily rainfall in Madison. This feels like the rain equivalent of 3/25/23 where nothing was really expected to happen and we end up with a top 10 daily precip-type record.

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Awesome to someone getting great rain in Wisconsin and surrounding areas.  Remnants moving into this area but not looking like anything all that exciting.  Nice to see at least see a bit of rain.  It has been a long time since I've seen anything like Madison got the past 24 hours.  Congratulation Madison friends.

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