#HeatwaveDelphi
LightNews LightNews
climateguyw.bsky.social
Great news. On 9/21 #HeatwaveDelphi (lasting from 8/09 to 9/21) ended since all NWS advisories expired. The South will go through a slow cooling trend as we go into fall this week. My Criteria: guyonclimate.com/2026/05/11/e
@michaelemann.bsky.social @katharinehayhoe.com @bhensonweather.bsky.social
September 21, 2026 at 10:56 PM
climateguyw.bsky.social
On 9/09 dangerous #HeatwaveDelphi increased over the Southwest but weakened a bit in the nation's heartland. Millions under heat advisories +warnings had miserable outdoor conditions. My Criteria: guyonclimate.com/2026/05/11/e
@michaelemann.bsky.social @katharinehayhoe.com @weatherwest.bsky.social
September 9, 2026 at 10:08 PM
climateguyw.bsky.social
On 8/29 #HeatwaveDelphi has temporarily decreased to a CAT2 since dangerous heat is relenting in the Southwest, but heat is increasing in the southern Plains, as expected, where more records will fall on Sunday.
Criteria: guyonclimate.com/2026/05/11/e
@michaelemann.bsky.social @katharinehayhoe.com
August 29, 2026 at 9:34 PM
climateguyw.bsky.social
On 9/02 #HeatwaveDelphi ramped back up to a major CAT 3 because areas of NWS heat warnings + advisories were expanded. Delphi will remain strong + extensive this week. Criteria: guyonclimate.com/2026/05/11/e
@michaelemann.bsky.social @katharinehayhoe.com
@zacklabe.com @bhensonweather.bsky.social
September 2, 2026 at 9:56 PM
climateguyw.bsky.social
On 8/21 major CAT3 #HeatwaveDelphi weakened a tad over the southern tier of states because of some storms but will continue being dangerous over the West and South. Criteria: guyonclimate.com/2026/05/11/e
@michaelemann.bsky.social @katharinehayhoe.com
@donsutherland1.bsky.social @zacklabe.com
August 21, 2026 at 11:20 PM
climateguyw.bsky.social
On 8/28 CAT3 #HeatwaveDelphi was confined to the Southwest but will move eastward again with its record temps this weekend. The West will get relief.
Criteria: guyonclimate.com/2026/05/11/e
@michaelemann.bsky.social @katharinehayhoe.com
@donsutherland1.bsky.social @bhensonweather.bsky.social
August 28, 2026 at 9:46 PM
climateguyw.bsky.social
Main Topic: Dangerous CAT3 #HeatwaveDelphi Peaks Today
On The Extreme Temperature Diary MON 8/17/2026
At: guyonclimate.com
+ #climate #weather and record temp reports
@michaelemann.bsky.social @katharinehayhoe.com @bhensonweather.bsky.social @donsutherland1.bsky.social @weatherprof.bsky.social
August 17, 2026 at 7:27 PM
climateguyw.bsky.social
On 9/17 #HeatwaveDelphi moderated down to a CAT1 since area of advisories shrank. Still, many records were set in the south-central U.S. Delphi will finally dissipate the next few days. My Criteria: guyonclimate.com/2026/05/11/e @michaelemann.bsky.social @katharinehayhoe.com
@zacklabe.com
September 17, 2026 at 10:34 PM
climateguyw.bsky.social
On 9/16 CAT2 #HeatwaveDelphi continued to plague the South with excess heat. Delphi's heat dome peaked today at 601 dm, the highest I have ever seen for September in the U.S. My Criteria: guyonclimate.com/2026/05/11/e
@michaelemann.bsky.social @katharinehayhoe.com
@bhensonweather.bsky.social
September 16, 2026 at 9:48 PM
climateguyw.bsky.social
On 9/14 #HeatwaveDelphi remained a CAT1 but was closing in on my CAT2 ranking. Delphi will plague the South with excess heat this entire week.
My Criteria: guyonclimate.com/2026/05/11/e
@michaelemann.bsky.social @katharinehayhoe.com
@donsutherland1.bsky.social @bhensonweather.bsky.social
September 14, 2026 at 9:25 PM
climateguyw.bsky.social
Good News. On 9/11 #HeatwaveDelphi moderated to an overall CAT2 as conditions cooled slightly over the Southwest. A few advisories remain in TX and OK. My Criteria: guyonclimate.com/2026/05/11/e
@michaelemann.bsky.social @weatherwest.bsky.social
@bhensonweather.bsky.social @zacklabe.com
September 11, 2026 at 10:13 PM
climateguyw.bsky.social
On 8/24 Dangerous CAT3 #HeatwaveDelphi strengthened in the Southwest and remained dangerous across the south-central U.S. Many records from Delphi were set the last few days. My Criteria: guyonclimate.com/2026/05/11/e @michaelemann.bsky.social @katharinehayhoe.com
@donsutherland1.bsky.social
August 24, 2026 at 8:42 PM
climateguyw.bsky.social
On 9/19 CAT1 #HeatwaveDelphi continued on since a few NWS advisories were present. Many records were being set daily in the south-central U.S. Delphi will finally dissipate in the next few days. My Criteria: guyonclimate.com/2026/05/11/e
@michaelemann.bsky.social @katharinehayhoe.com
@zacklabe.com
September 19, 2026 at 9:49 PM
climateguyw.bsky.social
On 9/04 dangerous CAT3 #HeatwaveDelphi continued to expand across the South, making outdoor life miserable for millions. Due to its longevity Delphi may achieve historic CAT4 status next week. My Criteria: guyonclimate.com/2026/05/11/e
@michaelemann.bsky.social @katharinehayhoe.com
@zacklabe.com
September 4, 2026 at 9:34 PM
climateguyw.bsky.social
On 8/20 major CAT3 #HeatwaveDelphi strengthened over the southern tier of states and West, getting close to my historic CAT4 level in the Southern Plains. Criteria: guyonclimate.com/2026/05/11/e
@michaelemann.bsky.social @katharinehayhoe.com
@bhensonweather.bsky.social @donsutherland1.bsky.social
August 20, 2026 at 9:40 PM
climateguyw.bsky.social
On 9/13 #HeatwaveDelphi remained a CAT1 but was growing across the nation's mid-section. Delphi will shift east this week and build back towards major CAT3 status.
My Criteria: guyonclimate.com/2026/05/11/e
@michaelemann.bsky.social @katharinehayhoe.com
@donsutherland1.bsky.social @zacklabe.com
September 13, 2026 at 9:28 PM
climateguyw.bsky.social
Main Topic: Future of Long-Lived #HeatwaveDelphi
On The Extreme Temperature Diary SAT 9/12/2026
At: guyonclimate.com
+ #climate and #weather record temp reports @michaelemann.bsky.social @katharinehayhoe.com @doctorvive.bsky.social @bhensonweather.bsky.social @donsutherland1.bsky.social
September 12, 2026 at 9:12 PM
climateguyw.bsky.social
On 8/15 major CAT3 #HeatwaveDelphi continued to grow across the southern half of the country. This system might become a historic CAT4 by early next week depending upon temp and heat index values. Criteria: guyonclimate.com/2026/05/11/e @michaelemann.bsky.social @katharinehayhoe.com
@zacklabe.com
August 15, 2026 at 9:23 PM
climateguyw.bsky.social
Good News. On 9/12 #HeatwaveDelphi ended in the West and is now down to an overall CAT1. However, Delphi will shift to the east over the next week and is already growing again over the south-central U.S. My Criteria: guyonclimate.com/2026/05/11/e
@michaelemann.bsky.social @weatherwest.bsky.social
September 12, 2026 at 10:26 PM
climateguyw.bsky.social
On 8/12 major CAT3 #HeatwaveDelphi continued to grow in the mid-MS Valley, Plains + South. This system might become a historic CAT4 over the weekend depending upon temp and heat index values. My criteria: guyonclimate.com/2026/05/11/e
@michaelemann.bsky.social @katharinehayhoe.com
@zacklabe.com
August 12, 2026 at 9:24 PM
climateguyw.bsky.social
On 8/23 Dangerous CAT3 #HeatwaveDelphi restrengthened over the southern Plains and Texas. Many records from Delphi have been set over the weekend. My Criteria: guyonclimate.com/2026/05/11/e
@michaelemann.bsky.social @katharinehayhoe.com
@bhensonweather.bsky.social @donsutherland1.bsky.social
August 23, 2026 at 10:03 PM
climateguyw.bsky.social
On 9/01 #HeatwaveDelphi ramped back up to a CAT 2 because NWS heat warnings were issued + advisories were expanded. Delphi will remain strong + extensive this week. Criteria: guyonclimate.com/2026/05/11/e
@michaelemann.bsky.social @katharinehayhoe.com
@zacklabe.com @bhensonweather.bsky.social
September 1, 2026 at 8:49 PM
climateguyw.bsky.social
On 9/15 #HeatwaveDelphi increased to my CAT2 ranking only because of its longevity over the south-central U.S. Delphi will plague the South with excess heat this entire week. My Criteria: guyonclimate.com/2026/05/11/e
@michaelemann.bsky.social @katharinehayhoe.com
@bhensonweather.bsky.social l
September 15, 2026 at 10:06 PM
climateguyw.bsky.social
On 8/11 we got a new major CAT3 #HeatwaveDelphi in the mid-MS Valley, Plains + South, which will strengthen. Some good news- western #HeatwaveKoch dissipated today. My criteria: guyonclimate.com/2026/05/11/e
@michaelemann.bsky.social @katharinehayhoe.com
@bhensonweather.bsky.social @zacklabe.com
August 11, 2026 at 9:10 PM
climateguyw.bsky.social
On 8/22 #HeatwaveDelphi weakened a tad more to a borderline CAT2/3 but remainder dangerous in TX and AZ. Delphi should restrengthen next week. My Criteria: guyonclimate.com/2026/05/11/e @michaelemann.bsky.social @katharinehayhoe.com @bhensonweather.bsky.social @donsutherland1.bsky.social
August 22, 2026 at 9:28 PM