TheClimateChanger

Very nice couplet on radar.

Interesting fire behavior from the Park Fire in California, with a fire tornado spawned by pyroCb.

Based on current trends, it appears likely that DCA will see some months reach mean temperature levels never observed outside of Death Valley prior to the 21st century by the end of this century.

Perhaps more impressive, the current monthly mean temperature of 84.5F would tie for 16th warmest July in the ENTIRE period of record at Miami. Higher July mean temperatures were never observed prior to 1981, and only 4 times prior to 2005 [1981, 1983, 1992 (Pinatubo be damned) and 1998]. The highest pre-1980 mean was 84.0F, set in 1969.

Yeah, 110F with 15-20% humidity, a 20-mph breeze, and a thick pall of acrid smoke greatly dimming the sun/solar radiation probably would not feel that bad tbh.

Saw this on my X feed. Had to share here.

At Miami, the mean of 81.9F would tie for 19th warmest of the 89 years of record in the interval from 1896 to 1986 [inclusive]. So, yeah, even Miami is not a good comparison. Temperatures for the summer to date in DC in 2024 would be well above the median 20th century value for Miami for the period ending July 24. Prior to the very end of the 20th century, heat similar to that experienced in DC would only be expected in Miami a little more than twice a decade.

While still well above the median 18th & 19th century summer to date values for Orlando, Florida... a much more pedestrian ranking. This summer would tie for 37th warmest on record between 1892 & 1997.

Similarly, in the 106-year period beginning in 1892 and ending in 1997 [inclusive], this value was exceeded in only 9 summers at Tallahassee, Florida.

The mean temperature at DCA has been 81.9F for the summer to date. In the 93-year period beginning in 1884 and ending in 1976 [inclusive], this value was exceeded on only 5 occasions in Savannah, Georgia. Those being the summers of 1934, 1939, 1942, 1943 and 1952.

70% chance of 90+ by Sunday for valleys and urban areas. The usual hot spots out your way will probably approach 95F.

The latest PBZ AFD highlighting some of the weather items I discussed yesterday. .LONG TERM /SUNDAY THROUGH WEDNESDAY/... KEY MESSAGES: - Warmer and more humid on Sunday. - A few rounds of disturbances pass to close out the weekend into the middle of next week. - Moderate risk of excessive heat beginning in August. ------------------------------------------------------------------- Further modification of the airmass continues on Sunday which will likely be the warmest day of the forecast period as probabilities sit up to 70% for >90F in the urban areas and valleys, though upper cloud coverage will increase from the southwest and could keep highs a little cooler. Ensemble clusters all absorb a cutoff upper low across the deep South back into the southwest flow aloft and show good agreement on its track through the Ohio Valley, but differ some on the amplification. This will return a more unsettled pattern to close out the end of the weekend into the beginning of next week as a few more disturbances pass through. Thereafter, ensembles still show notably good agreement by mid week in central CONUS ridging which would place our area in northwest flow aloft. While these patterns tend to be dry on average, they are also supportive of rounds of severe weather chances as we experienced in a similar pattern last week. Machine learning does paint a broad-brushed potential for a severe threat by mid week, but details won`t become clear for several more days. In addition, heat concerns return. Accordingly, CPC has issued another moderate risk of excessive heat from August 1st through August 7th. Lastly, with flow aloft extending downstream of the Canadian Rockies, wildfire smoke could make its debut to the Pittsburgh region this year.

.LONG TERM /SUNDAY THROUGH WEDNESDAY/... KEY MESSAGES: - Warmer and more humid on Sunday. - A few rounds of disturbances pass to close out the weekend into the middle of next week. - Moderate risk of excessive heat beginning in August. ------------------------------------------------------------------- Further modification of the airmass continues on Sunday which will likely be the warmest day of the forecast period as probabilities sit up to 70% for >90F in the urban areas and valleys, though upper cloud coverage will increase from the southwest and could keep highs a little cooler. Ensemble clusters all absorb a cutoff upper low across the deep South back into the southwest flow aloft and show good agreement on its track through the Ohio Valley, but differ some on the amplification. This will return a more unsettled pattern to close out the end of the weekend into the beginning of next week as a few more disturbances pass through. Thereafter, ensembles still show notably good agreement by mid week in central CONUS ridging which would place our area in northwest flow aloft. While these patterns tend to be dry on average, they are also supportive of rounds of severe weather chances as we experienced in a similar pattern last week. Machine learning does paint a broad-brushed potential for a severe threat by mid week, but details won`t become clear for several more days. In addition, heat concerns return. Accordingly, CPC has issued another moderate risk of excessive heat from August 1st through August 7th. Lastly, with flow aloft extending downstream of the Canadian Rockies, wildfire smoke could make its debut to the Pittsburgh region this year.

I am on team Artusa. Summer is not over yet!