*

Welcome, Guest. Please login or register.

Login with username, password and session length


Author Topic: July 2021  (Read 7749 times)

0 Members and 1 Guest are viewing this topic.

Offline StormNine

  • Global Moderator
  • Tornado
  • ******
  • Posts: 5,451
  • Location: Hopkinsville KY/ Bowling Green KY
  • Twitter:
  • Liked:
  • Likes Given: 224
Re: July 2021
« Reply #90 on: July 25, 2021, 04:42:29 PM »
I wouldn't be surprised to see a few folks crack 100F on Thursday particularly in Nashville metro and the Knox Valley.   

Offline dwagner88

  • Tornado
  • ******
  • Posts: 3,764
  • Location: Chattanooga (East Brainerd) TN
  • Liked:
  • Likes Given: 168
Re: July 2021
« Reply #91 on: July 25, 2021, 05:57:30 PM »
Thankful for storms today. We were on our way to 105+ heat indices otherwise. It was already 91 with 80% humidity at 12:30 PM when the first storms popped up.
Winter 2009-10 Snowfall: 11.5 in. :)
Winter 2010-11 Snowfall: 15.5 in. :)
Winter 2011-12: Trace
Winter 2012-2013: 0.25 in.
Winter 2013-14: 10.6 (9.5 on 2/12)
Winter 2014-2015: 10.25 in.
Winters 2015-2019: basically nothing
Winter 2019-2020:
2/8/20: 4.25

Offline cgauxknox

  • Derecho
  • ******
  • Posts: 1,110
  • Location: Knoxville
  • KM4UMK
  • Liked:
  • Likes Given: 642
Re: July 2021
« Reply #92 on: July 26, 2021, 05:23:12 AM »
When I got up at 5:30 this morning we were at 75 degrees and 79% humidity. We've been fortunate to enjoy a mild summer so far but now we're into serious swamp conditions.

Offline Dyersburg Weather

  • Global Moderator
  • Tornado
  • ******
  • Posts: 2,802
  • Location: North of 40
  • Liked:
  • Likes Given: 741
Re: July 2021
« Reply #93 on: July 26, 2021, 08:15:54 AM »
I have not dug into other models but the GFS is showing a big cool down after this week. Lows in the 50s for some. Probably like a fantasy snow.

Offline dwagner88

  • Tornado
  • ******
  • Posts: 3,764
  • Location: Chattanooga (East Brainerd) TN
  • Liked:
  • Likes Given: 168
Re: July 2021
« Reply #94 on: July 26, 2021, 01:27:09 PM »
Something I have always wondered about:
MRX labels every day with a high temperature over 90 as "Hot" and uses the Hot forecast imagery. Other offices don't do this unless the weather is above normal high temperatures. As a result, almost every day in July and August is labeled as "Hot", when really those days are mostly average. 90 seems like a low bar for "Hot" days in Tennessee outside the high mountains.
Winter 2009-10 Snowfall: 11.5 in. :)
Winter 2010-11 Snowfall: 15.5 in. :)
Winter 2011-12: Trace
Winter 2012-2013: 0.25 in.
Winter 2013-14: 10.6 (9.5 on 2/12)
Winter 2014-2015: 10.25 in.
Winters 2015-2019: basically nothing
Winter 2019-2020:
2/8/20: 4.25

Offline Crockett

  • Administrator
  • Tornado
  • ******
  • Posts: 3,668
  • Location: Oneida, TN
  • Liked:
  • Likes Given: 43
Re: July 2021
« Reply #95 on: July 26, 2021, 03:51:09 PM »
Something I have always wondered about:
MRX labels every day with a high temperature over 90 as "Hot" and uses the Hot forecast imagery. Other offices don't do this unless the weather is above normal high temperatures. As a result, almost every day in July and August is labeled as "Hot", when really those days are mostly average. 90 seems like a low bar for "Hot" days in Tennessee outside the high mountains.

This is 100% just a guess but I've always assumed there's criteria in place for using those definitions that varies from region to region, just as there is for watches/advisories. Just like it takes less snow/ice for a winter storm watch or warning in West TN than in East TN because East TN averages more snow, it takes less heat for a heat advisory in East TN than in West TN because we're cooler, on average, on this side of the state.

With the exception of Chattanooga, the normal high temp through July is >90° at every location within MRX's coverage area. It ranges from 88° at McGhee-Tyson and southern valley locations like Dayton to 85° in northern valley locations like Tazewell to about the same here on the northern plateau to 83° in foothills locations like Gatlinburg to 79° in the mountains like Roan Mountain.

Offline dwagner88

  • Tornado
  • ******
  • Posts: 3,764
  • Location: Chattanooga (East Brainerd) TN
  • Liked:
  • Likes Given: 168
Re: July 2021
« Reply #96 on: July 26, 2021, 05:41:10 PM »
This is 100% just a guess but I've always assumed there's criteria in place for using those definitions that varies from region to region, just as there is for watches/advisories. Just like it takes less snow/ice for a winter storm watch or warning in West TN than in East TN because East TN averages more snow, it takes less heat for a heat advisory in East TN than in West TN because we're cooler, on average, on this side of the state.

With the exception of Chattanooga, the normal high temp through July is >90° at every location within MRX's coverage area. It ranges from 88° at McGhee-Tyson and southern valley locations like Dayton to 85° in northern valley locations like Tazewell to about the same here on the northern plateau to 83° in foothills locations like Gatlinburg to 79° in the mountains like Roan Mountain.
I’m sure there is some form of criteria, but all of the low elevation areas in east TN (where the vast majority of the people live) have frequent 90+ degree days. Just seems odd that I can have a day where 90 is labeled hot, but my neighbors to the west, east, and south can have days at 97 that aren’t.
Winter 2009-10 Snowfall: 11.5 in. :)
Winter 2010-11 Snowfall: 15.5 in. :)
Winter 2011-12: Trace
Winter 2012-2013: 0.25 in.
Winter 2013-14: 10.6 (9.5 on 2/12)
Winter 2014-2015: 10.25 in.
Winters 2015-2019: basically nothing
Winter 2019-2020:
2/8/20: 4.25

Offline StormNine

  • Global Moderator
  • Tornado
  • ******
  • Posts: 5,451
  • Location: Hopkinsville KY/ Bowling Green KY
  • Twitter:
  • Liked:
  • Likes Given: 224
Re: July 2021
« Reply #97 on: July 26, 2021, 06:33:31 PM »
Something I have always wondered about:
MRX labels every day with a high temperature over 90 as "Hot" and uses the Hot forecast imagery. Other offices don't do this unless the weather is above normal high temperatures. As a result, almost every day in July and August is labeled as "Hot", when really those days are mostly average. 90 seems like a low bar for "Hot" days in Tennessee outside the high mountains.

I also wonder about that a bit as well.

At Hopkinsville (NWS Paducah) the 95F on Thursday is not labeled as hot but it is for Bowling Green (NWS Louisville).  Not a huge deal but interesting at least.   

Offline Dyersburg Weather

  • Global Moderator
  • Tornado
  • ******
  • Posts: 2,802
  • Location: North of 40
  • Liked:
  • Likes Given: 741
Re: July 2021
« Reply #98 on: July 27, 2021, 09:17:24 AM »
I also wonder about that a bit as well.

At Hopkinsville (NWS Paducah) the 95F on Thursday is not labeled as hot but it is for Bowling Green (NWS Louisville).  Not a huge deal but interesting at least.
  It takes 97 to get the Hot label for Dyersburg.

Offline Curt

  • Administrator
  • Tornado
  • ******
  • Posts: 8,706
  • Location: Arlington, TN(Memphis suburb)
  • Liked:
  • Likes Given: 447
Re: July 2021
« Reply #99 on: July 27, 2021, 09:25:20 AM »
Euro has Memphis area topping 100 late this week before a really nice cool down to highs in the low 80’s and low humidity. GFS actually has highs in the 70’s and lows in the 50’s for part of next week. Summer heat may be coming to its peak.

Offline TNHunter

  • Supercell
  • *****
  • Posts: 500
  • Location:
  • Liked:
  • Likes Given: 1
Re: July 2021
« Reply #100 on: July 27, 2021, 09:56:38 AM »
Now that school has started back I would take an early fall. However I highly doubt that happens. August and September seem to torch a lot.

Offline schneitzeit

  • Tornado
  • ******
  • Posts: 2,818
  • Location: Oswego, N.Y.
  • Tornado Alley moved SE.
  • Liked:
  • Likes Given: 2435
Re: July 2021
« Reply #101 on: July 27, 2021, 10:58:42 AM »
Something I wasn't aware of was the '64 Olympic Games in Tokyo kicked off on October 10 to avoid the hot summer. Much to the chagrin of the competing athletes, Japan's holding them in midsummer. Their climate is akin to Nashville this time of year. Could you imagine competing in an outdoors endurance event, such as a triathlon, in 90 degree weather with high humidity?

Source: https://www.data.jma.go.jp/obd/stats/data/en/normal/normal.html

31C -- 88F, 70% RH... heck naw.
« Last Edit: July 27, 2021, 11:11:56 AM by schneitzeit »
Nashville's Big Hits (since '98)

April 16, 1998 Tornado
January 16, 2003 Snowstorm
Summer 2007 Drought
May 1-2, 2010 Great Flood of Nashville
June 2012 Record Heat Wave
February 2015 Tennessee Ice Storm
January 22, 2016 Winter Storm Jonas
March 3, 2020 Tornado

Offline StormNine

  • Global Moderator
  • Tornado
  • ******
  • Posts: 5,451
  • Location: Hopkinsville KY/ Bowling Green KY
  • Twitter:
  • Liked:
  • Likes Given: 224
Re: July 2021
« Reply #102 on: July 27, 2021, 07:09:27 PM »
The first 1/3rd of August at least looks average to even a hair below average.

We just have to get through the next 3 days which will be the hottest period since at least Early October 2019 and for some areas July 2012.

Offline dwagner88

  • Tornado
  • ******
  • Posts: 3,764
  • Location: Chattanooga (East Brainerd) TN
  • Liked:
  • Likes Given: 168
Re: July 2021
« Reply #103 on: July 27, 2021, 09:08:53 PM »
The first 1/3rd of August at least looks average to even a hair below average.

We just have to get through the next 3 days which will be the hottest period since at least Early October 2019 and for some areas July 2012.
Man I forgot about October 2019. I think we hit 100 two days in a row. Shattered records.
Winter 2009-10 Snowfall: 11.5 in. :)
Winter 2010-11 Snowfall: 15.5 in. :)
Winter 2011-12: Trace
Winter 2012-2013: 0.25 in.
Winter 2013-14: 10.6 (9.5 on 2/12)
Winter 2014-2015: 10.25 in.
Winters 2015-2019: basically nothing
Winter 2019-2020:
2/8/20: 4.25

Offline joemomma

  • Severe Thunderstorm
  • ****
  • Posts: 459
  • Location: Putnam County
  • Liked:
  • Likes Given: 92
Re: July 2021
« Reply #104 on: July 29, 2021, 11:53:16 AM »
Yeah '19 was ridiculous.  Pushed out a lot of good hiking because the temps were just too high.

 

*

September 2021
by Bruce
[Today at 06:40:12 AM]
Long Range Discussion: Winter 2021-2022
by TNHunter
[Yesterday at 06:14:01 AM]
2021 Tropical Season
by schneitzeit
[September 15, 2021, 12:29:00 PM]