81 F. average high on August 13.
76 F. high on August 13, 2013.
August 13, 1978: Boundary Waters area hit by a tornado, some of the damage could still be seen 10 years later.
The Monsoons of August
Most of us lead impossibly hectic, over-stimulated lives, on call 24/7. The idea of a more volatile, extreme climate often elicits a shrug. "Paul, I barely have time to brush my teeth. I don't want to ponder big issues I have no control over."
And that's the thing about climate change. It only hits home...when it hits home. For me there was no overnight epiphany. It was a series of puzzle pieces locking into place over 20 years.
This week record flooding hit Detroit, Baltimore and Long Island. Islip picked up over 13 inches of rain as a line of storms stalled, "training echoes" dumping 4-5 months of rain in a few hours. More symptoms of a warmer, wetter climate.
New research suggests changes in the Arctic are having a domino effect on jet stream winds, as more elongated and amplified "Rossby Waves" create conditions more favorable for extreme heat and record rains.
Meanwhile Minnesota's weather has been stunning; postcard-perfect. Expect a run of 80s into next week as weather we should have enjoyed in July finally shows up. A few T-storms bubble up Friday night into next week.
With any luck they won't stall and flood. We already got a big, sloppy taste of the new normal back in June.
* Twitter image above courtesy of WPRI-TV in Providence, Rhode Island.
Map credit: New York City National Weather Service.
Graphic credit above: "The heavy rain over Burlington, Ont., on Aug. 4 was an isolated event, but climate change seems to be accompanied by more extreme storms that overwhelm infrastructure and cause flooding."
Accumulated Rainfall. 60-hour data (4 KM NAM) shows heavy rains tapering over New England, heavy T-storms capable of flash flooding over the Rockies, another band of moderate rain from New Orleans to Savannah between now and 2 AM Saturday. Animation: NOAA and HAMweather.
Image credit above: YouTube / The New York Times.
TODAY: Lukewarm sun, still nice. Dew point: 57 Winds: SE 8. High: 82
THURSDAY NIGHT: Partly cloudy, still dry. Low: 65
FRIDAY: Humid with more clouds. T-storms likely. Dew point: 64. High: 83
SATURDAY: Sticky sun, few T-storms. Wake-up: 68. High: 84
SUNDAY: July-like. Mix of sun and storms. Wake-up: 69. High: 83
MONDAY: Muggy, more numerous T-storms. Wake-up: 68. High: 82
TUESDAY: Unsettled, lingering storms. Dew point: 67. Wake-up: 67. High: 84
WEDNESDAY: Some sun, still steamy. DP: 69. Wake-up: 66. High: 87
Our analysis demonstrates that the upper-tropospheric moistening observed over the period 1979–2005 cannot be explained by natural causes and results principally from an anthropogenic warming of the climate. By attributing the observed increase directly to human activities, this study verifies the presence of the largest known feedback mechanism for amplifying anthropogenic climate change.