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September 2019 in the USA brings Extremes of Wet, Warm, and Dry
CLIMATE, WATER, & WEATHER: US SEPTEMBER
Extremes of Wet & Dry
Assessing the U.S. Climate in September 2019,
NCEI, October 8, 2019.
MAIN POINTS
Second Warmest Month
"...second warmest September in the 125-year period of record. The warmest September on record occurred in 1998 and was 0.5°F warmer than in 2019."
Average Precip
"...September precipitation total for the contiguous U.S. was 2.42 inches, 0.07 inch below average, ranking in the middle third of the 125-year period of record."
Note the division of record precipitation and record dryness across the US during September. The extremes dry of the Southeast and extreme wet of the Upper Midwest balanced into an average of extremes.
Drought Growing in Southeast
NOAA: "Flash Drought," striking in SE US
"Mississippi, Alabama, Georgia, Florida, Kentucky and West Virginia all had their driest Septembers on record in the last 125 years. One reason? A lack of rain from tropical storms and hurricanes. Besides rains associated with Dorian along the coastal Atlantic and Tropical Storm Imelda near Houston, tropical rains simply were non-existent over the broader region."
Nonetheless...
This is The Wettest Year to Date on Record, So Far…
"For the year-to-date, the national precipitation total was 27.06 inches, 3.86 inches above average, the wettest January–September on record."
Lotsa Damage
"...the year-to-date total to 10 weather and climate disaster events with losses exceeding $1 billion each across the U.S. This is the fifth consecutive year (2015–2019) in which 10 or more billion-dollar disasters have impacted the U.S. — the first such occurrence on record."
September Events
Hurricane Dorian
Tropical Storm Imelda
Above- to much-above average precipitation was observed across parts of the West, the northern Plains, and portions of the Great Lakes. North Dakota had its wettest September on record.
A significant winter storm across parts of Idaho, Montana and Wyoming during September 28–September 30.
Pronounced dry conditions across the South, Ohio Valley and parts of the mid-Atlantic contributed to a “flash drought” which emerged during September.
19 percent of the contiguous U.S. was in drought, up 9 percent from the beginning of September.
BOTTOM LINE
Warm & Wet
This year saw the second warmest September on record happening during the wettest year to date on record. The extremes we are seeing across different types of weather, of extremely wet, extremely hot, and extremely dry conditions are creating new seasonal combinations of extreme conditions.
Up, Up, & Away…
The trend line is quite clear: everything is heating up. And, that warming is seriously disturbing traditional seasonal weather patterns everywhere around the Northern Hemisphere. These weather changes are not just affecting the character of the seasons themselves, but are affecting the lengths of the seasons, as well as the timing of the transitions between seasons.
These changes in seasonal character, length, and timing are upending human and natural dependencies on the timing of when the fertility of the planet rises and falls in lockstep with the seasonal transitions. "Everything," is timed to a different, older, "seasonal charater & timing," than the new ones we are unleashing on our planet.
These changes in the character and timing of our seasons are sending waves of stress, pain, and death rebounding through the natural webs of life wrapping around, and tying our planet's Oceans, Atmosphere, and Land life all together.
These changes are tearing the web of life apart.
Warm & Wet
The rise of extreme wetness as ocean and atmospheric warmth increases should not be unexpected, as the rise of equatorial temperatures supercharges Northbound wet tropical flows.
This same rise in temperatures up in the Arctic during the Arctic Winter is creating instabilities in the Arctic Vortex capable of sending vast cells of Frigid Arctic Air across the American Southeast.
My Advice
See the traditional configurations of Nature and Weather while they still exist. Expect the Unexpected. Extremes are becoming normal.
Sept 2017
Extreme Weather Increasing
Nov 2018
Climate Research, 2018: Extreme Heat Expanding with the End of Cold
Global & US Climate, Recently
Sept 2019
NOAA: Assessing the Global Climate, August 2019
Aug 2019
NOAA: Assessing the Global Climate, July 2019
July 2019
NOAA Climate Assessment for the U.S. Climate in June 2019
April 2019
March 2019 US Climate Disasters & Weather Trends: Cool, Wet, and Saturated
Feb 2019
2018 NOAA GLOBAL CLIMATE ANALYSIS
Feb 2019
February 2019 NOAA: Weak El Nino Here? To Persist?
Longer Term Trends
Rising Heat Continues: Another "Hottest" Record Set for Summer of 2017
Hottest 2011: Second Warmest Summer
Longest Research Charted
Heating up Our Planet over the Short, Medium, and Long Terms
News of Man & Nature, October 2019
More
Nature News
Astro-Phys, Space, & Science News
monthly, NOAA, National Centers for Environmental Information, United States, climate assessment, September, 2019, second warmest, hotest, month, wettest, year to date
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