City, Wind

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I think I mentioned wind yesterday. And all night and today, more of the same. I took Dad out for our customary trip down to the Dairy Queen at Irving Park Road and Central Avenue. Our mission: two chocolate malteds. On the way, we saw a couple of places where treetops had snapped off or large boughs had fallen into the street. It really was windy.

Searching for visual evidence, and trying to move my legs a little, I walked out to Loyola Park, on the lake about a mile and a half east of my sister Ann’s place. On the MIchigan and Indiana shores, the lake might have been putting on a show. Here, with the wind blowing straight out across the shoreline, the water was flat.

But on the walk over there, gusts ripped through the trees, thrashing them. The maples especially–the undersides of their leaves are nearly white–looked like they’ve been turned inside out. Still, it was a warm wind, a summer wind, and everything’s green as midsummer. In a matter of weeks, though, many of those leaves will scatter.

Cross-Country

longbeach090310.jpg (Above: Looking south down the Los Angeles River, center, and across the junction of Interstate 405, the San Diego Freeway (running right and left) and Interstate 710, the Long Beach Freeway (which runs down the river’s western bank). Long Beach Harbor is in the distance. Taken just after takeoff from Long Beach Airport, September 3, 2010. Google map link.)

I took a long bike ride once from near Boulder, at the foot of the Colorado Rockies, to east central Kansas, then turned around and came most of the way back. The route was given not in a map but in a sort of schematic of the roads on the route. That was a simple matter because a good 80 percent of the route seemed to be on a single highway, U.S. 36. There was a point marked on the diagram about 80 miles or so southeast of Boulder–the point where the Rockies vanished as you headed east across the Plains and reappeared on the westbound route.

That mark on the map made an impression: I loved the idea of a point on the landscape where such a dramatic change is made visible. Most long-distance travel, especially between the Rockies and the Appalachians, I think, is a tale of subtle changes, watching landscapes shift slowly as you gain or lose elevation or encounter wetter or dryer climatic zones. It’s much different from traveling north or south, east or west across California, where the next amazing transformation seems always to be around the next bend.

And then there’s flying across country–by which I mean commercial airline flight–which compresses experience and landforms into an extended narrative of geographic changes. I’ve often fantasized about coming up with some manual or device that would serve as a guide to what the airline passenger sees as he or she soars overhead. At first I envisioned it as a fold-out book in which each page would show landmarks, landforms and highways all the way along the air route, and now I imagine that GPS and map software can hand you a continuous unfolding picture with as much detail as you desire.

The strip of landscape that rolls out beneath the main air routes between the Bay Area and Chicago has become familiar, but it’s still exciting to see from the air: the cityscape, the bay, the bridges, the islands, the towns, the freeways, the hills and mountains that slide beneath you as you head out into the Central Valley. The Sacramento-San Joaquin Delta with its knot of waterways, the farm geometry of the valley floor, the big valley cities. Then the foothills and big reservoirs and forests as the hills turn into mountains and the checkerboard of raw-looking clearcuts. Then granite and almost before you know it you’ve vaulted the crest of the Sierra Nevada, maybe within view of Yosemite or Lake Tahoe–so much of what you see depends on what side of the fuselage you gaze from.

Then Nevada: basin and range and uncountable debris fans at the foot of mountains and dried-up courses of old floods. You might be able to place yourself by the appearance of a road–Interstate 80, maybe, or the thin ribbon of U.S. 50, or one of the north-south routes. Then maybe you get a look across one of the mountain ranges at the Great Salt Desert, signaling Utah. Maybe you see that lake, or the Wasatch Mountains rearing up from the middle of the city. The Rockies may appear, or coral-painted canyonlands, or the course of the Green River or the Colorado.

By this time you might be an hour and a half into the flight, maybe more. If you’re connecting at Denver, you might sweep down to the plains across Rocky Mountain National Park. If you’re on a non-stop, you might or might not ever see a square inch of Colorado, but you’ll see some part of the mountain chain. When that’s over, you’ll see the dry, sparsely roaded High Plains. You might meet up with Interstate 80 again near the course of the North Platte River, a rough guide to the old pioneer routes. In western Nebraska the country looks hilly and potholed. Anywhere in these dry plains you might see broad circles of wheat or alfalfa irrigated straight out of the Ogalalla Aquifer. Slowly, the roads increase and the green becomes more intense. You might see Omaha; even if you don’t, you’ll see the Missouri River below, running across a floodplain marked by tall bluffs.

After that, you’re almost home. Iowa, farmed and fertile looking and looking anything but flat, a rolling landscape broken by hundreds of small and big streams. The Mississippi is ahead, impossibly wide and complex looking as it braids among heavily wooded islands. And then it’s southwest Wisconsin or northwest Illinois, with county roads knocked askew from the preferred township grid as they straggle across thousands of square miles of glacial debris dumped in the last ice age. And then towns: Madison in the distance, Janesville, Beloit, Rockford. The Rock River. The Fox River, the suburbs, the city, the airport. Touchdown.

(Flying out here Friday, my routine was interrupted. I flew down to Long Beach, then from there to Chicago. Terra incognita, mostly, especially sitting over the plane’s port wing. But I did get glimpses. I puzzled over our route after leaving Long Beach; we took off to the northwest, then turned and flew south out over the ocean before turning to head east, and I just don’t know the landscape down there. The first good reference point I spotted was crossing the Colorado River. And after that, just a lot of guesswork. (The actual flight path appears to be here.)

Chicago

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When the wind at O’Hare’s from a western quarter–a common occurrence–flights often overfly the North Side or northern suburbs, then loop out over Lake Michigan and circle back to land into the wind. I’ve experienced that approach many times, and typically, it seems the maneuver occurs well up the lakeshore, well north of downtown. Today I was sitting on the north side of the plane as we crossed the city, and I could clearly see the Edgewater neighborhood and other landmarks of the North Side shoreline. But it felt like we must be well north of downtown. Then we flew out over the lake, turning north. Looking back, I could see we were actually south of the Hancock Building (it’s the tall black building toward the right edge of the forest of towers here), meaning that we must have flown right over downtown, maybe even over the southern half of the Loop, before reaching the lake. I took the picture as we completed our turn back west, and we were already well north of downtown. It was one of the best views of the city center I’ve ever gotten.

The Forecast, Chicago Style

Gfsimage
 As mentioned many times in the past, we here at Infospigot Information Industries are fond of reading the Area Forecast Discussion (AFD) published online by National Weather Service offices around the country. The AFD gives a broad-brush explanation for the upcoming forecast; they discuss the latest trends in the output from the numerous weather models they follow and give the rationale for why they believe it will be windy and cold but dry tomorrow and the next day instead of warm and rainy. It would not seem to be the kind of writing that has a lot of character to it. Most of the time it isn't. Every once in a while, though, some personality leaks through. In this morning's discussion of upcoming weather from the Chicago office, a forecaster mentions that the weather models show that storms next week will be warmer than expected. Thus the region can expect rain instead of snow. But what about white Christmas? Here's the forecaster's summary (with some of the arcane AFD abbreviations spelled out and the all-caps style left intact): 

HEADING INTO EXTENDED RANGE…GUIDANCE HAS MADE A MAJOR SHIFT IN SCENARIO WITH MID WEEK WEATHER SYSTEM. GFS [GLOBAL FORECAST SYSTEM MODEL] NOW BRINGS DEEPENING LOW NORTHWARD ACROSS ILLINOIS WEDNESDAY NIGHT-THURSDAY SUGGESTING MAINLY A RAIN EVENT FOR MOST OF FORECAST AREA. 00Z [6 P.M. CST THURSDAY] EUROPEAN [MODEL] HAS COME IN FOLLOWING SUIT. THIS LOOKS LIKE A VERY SIMILAR SITUATION AS WHAT WE HAD THE FIRST WEEK OF THIS MONTH. THEREFORE…RATHER THAN RIDE COLDER SNOWY FORECAST INTO THE GROUND…HAVE BEGUN TO TREND AS WARM WITH THIS SYSTEM AS GRID TOLERANCE WILL ALLOW. HOPE NO ONE GOT THEIR KIDS SLEDS FOR CHRISTMAS UNLESS THEY CAN BE ADAPTED FOR USE IN MUD."

As I said, these folks can be a riot. (Picture above: the current GFS Model Forecast from Unisys Weather.)

Road Blog: Chicago Skyscape

Westernave121709
At Western and Coyle avenues on the far North Side. It was warmer today — we were above the freezing mark — partly because we were under a blanket of overcast all day. Then, just as the sun set, the sky got some color. I went out around the corner from my sister's place to try to get a picture and had to go down Western a little way before I had a view past the street-front buildings to the west. Snow is in the forecast for tomorrow and the next day (Friday and Saturday), though it seems like sort of a non-storm event: continual light snow that may or may not wind up with a few inches on the ground. I'm supposed to fly back to San Francisco on Saturday, so I'm rooting for no big storm until I've escaped. 

Lake Night

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In the Bay Area this summer, everyone has bemoaned the prolonged presence of the thick marine overcast that keeps the coastal locales cool. And it does seem to have been a little cooler than normal if you’re anywhere along the bayside (inland’s another story). Chicago, too, has had a relatively cool summer; it’s been six weeks or so since the last official 90-degree reading. That will change today — it’s before noon and the temperature is already pushing 90. The weather service has issued heat advisories from Chicago south and severe thunderstorm warnings from Chicago north.

Though it didn’t officially hit 90 yesterday, the day did feature the high humidity that makes Chicago great. It creates a heat that seems to envelop you, then go through you. I spent most of the day in the North Side Brekke place, comfortably air-conditioned. I did take a short midday walk up Western Avenue, though, and then after dinner walked the mile and a half over to the lake. I got there about 10 o’clock, and there were lots of people hanging out on the beach, the one cool spot in the city. Fireworks were going off to the south somewhere; to the northeast, lighting flashed through the clouds. (The shot above was on the shore where Columbia Avenue ends. )