While We’re On the Subject of Hurricanes….

Colin Price at Tel Aviv University and colleagues have a paper in GRL looking at lightning storms in East Africa as precursors for the easterly waves that are precursors of Atlantic hurricanes:

More than 90% of the tropical storms and hurricanes during these 2 years were preceded by periods of above average thunderstorm activity in eastern Africa. During the 2006 season not only was the east African lightning activity 23% lower than during 2005, but there was 36% less lightning activity over the entire African continent during 2006. We suggest the possibility that lightning activity in tropical Africa may represent an important precursor of Atlantic hurricane formation.

Daybook

  • reading: Everett Rogers’ History of Communication Study, suggested by a friend after I bemoaned the fact that, despite being a communications professional, I’m woefully ignorant about communication
  • blogs: Nature’s new Climate Feedback blog looks promising, but I’m curious about something. The comments look suspiciously like a lot of the same people who show up at all the other climate blogs. Do we need another? A contingent “yes,” and I’ve added it to my blogroll and the Planet.
  • garden: The iris are in full explosion in our front yard. Photos to follow. Tomatoes now in the ground in the back.
  • word: irrigable – “The proper standard for measuring the water rights intended for the reservations was held to be `practicably irrigable acreage.'”

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Dirty Bike

Originally uploaded by heinemanfleck.

In past years, I’ve suggested that celebrating my birthday by riding my age was a modest goal. Forty-eight miles yesterday (77 kilometers, not sure what it is in metric years) was tough. I could blame the weather, but I really don’t have a lot of miles in my legs this year. Nah. I’ll go ahead and blame the weather.

Friends joined me for the ride, and we rode a favorite old route, down through the South Valley and out Rio Bravo onto Albuquerque’s southwest mesa. From the mesa you can see the city laid out before you, and it’s always been a special view for me: the sight I saw the first time Lissa, Nora and I pulled into town 17 years ago pulling a U-Haul with all our belongings. You can see how huge Albuquerque is from there, a big western city, but also how small, because you can see the edges.

It was stormy all day, with a howling wind. The view across the valley fit what my meteorologist friends call “energetic” – big shafts of precipitation against the mountains, clouds dancing across the city. That’s the best kind of ride, because it adds adventure, and I was with friends, suffering a bit (but really, not a lot) together.

Trying to find a way to cut back into town out of the wind, we followed an old shortcut we used to take years ago, when Jaime lived on the west side and we rode out there all the time. Around a closed gate, we found ourselves in the middle of a construction site where our shortcut used to be. Cyclocross across some packed dirt, then a fence.

“You know it’s a good ride when you have to climb a fence,” Cable said. Indeed, it was a good ride.

First Hummingbird Sighting


Big Toe Monitoring Birds

Originally uploaded by heinemanfleck.

Inkstain Staff Ornithologist Big Toe spotted the first hummingbird of spring yesterday (May 1), so I had him go back through the records of first hummingbird sightings at Inkstain World Headquarters. This sighting appears to be substantially later than in 2004 (April 20) and 2005 (April 16). Big Toe attributes this late migration to later spring warming in the hummingbirds’ wintering grounds, and suggests this is definitive evidence of global cooling.