Tuesday October 2nd… Dear Diary. The main purpose of this ongoing post will be to track United States extreme or record temperatures related to climate change. Any reports I see of ETs will be listed below the main topic of the day. I’ll refer to extreme or record temperatures as ETs (not extraterrestrials)😊. Here is today’s main climate change related topic:
A Hot Florida And Other September Climatology
It’s time to start posting the usual climatology for the prior month, September. I’m getting some indications that Florida may have had its hottest September in recorded history, and that most of the southeastern United States had well above average temperatures. The U.S. as a whole probably had a near top ten warmest September. And Yikes! The lower 48 states probably had its warmest May-September in recorded history (since 1895). Let’s investigate some of the data behind these claims.
First, let’s see why I am thinking that Florida had its warmest September by looking at stats from some of its largest cities:
Note that Jacksonville was uncomfortably humid, as well. Let’s continue:
It’s been a hot September in my corner of the world. Atlanta’s average daily temperature will be above seasonal norms for every single calendar day.
So far through 9/28/18: AVG. MAX 90.0F AVG. MIN 72.5F Month: +7.3F
Unusually warm, dry and sunny weather has not been confined to Anchorage, which notched its warmest September on record, but has appeared in many other parts of Alaska and eastern Siberia:
- Fairbanks posted warmer than normal temperatures for the last 20 days of September, and Nome for the last 22 days.
- On Sunday, King Salmon hit 71 degrees, its warmest temperature so late in the season.
- Bethel, Alaska, failed to observe any low temperatures below freezing in September for only the fourth time on record.
- Chukotka, Siberia, posted its warmest September on record, with an average temperature nearly 11 degrees above normal, tweeted Francois Jobard, a meteorologist in Paris.
CMC model 10 day Forecast for the Western Atlantic 10/2 12 pm While T.S. Leslie meanders about the Atlantic. A low forms off the Coast of Nicaragua, slowly moves North & strengthens to a T.S. and continues past W Cuba & makes landfall in FL Panhandle, then moves NE into the U.S. pic.twitter.com/BCVYwmu4cs
— Scott Cook (@scook2214) October 2, 2018
As Category 5 Hurricane #Walaka heads north toward #JohnstonIsland (white circle), staff are preparing to be evacuated by @uscoastguard – #GOES15 Infrared images: animatedGIF https://t.co/7sNh2rXo6n | MP4 https://t.co/yHd3SAJ4z8 pic.twitter.com/JdTZCKPeAZ
— Scott Bachmeier (@CIMSS_Satellite) October 2, 2018
Including the anomalously warm ocean surface Florence passed over, just before striking NC. So warm in fact, corals were bleaching in Bermuda that week (very rare). coral bleaching photo by
(As usual, this will be a fluid post in which more information gets added during the day as it crosses my radar, crediting all who have put it on-line. Items will be archived on this site for posterity.)
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The Climate Guy