Land-breeze towering cumulus clouds bubbled offshore in the morning as I fished off Haulover Pier. Amidst weak low level flow, as the land cools faster than the water, dense and relatively cool air flows seaward late at night and near sunrise. Lift along the edge of this land-breeze front forms convective clouds like these, which can become strong thunderstorms if there is even more lift and/or … [Read more...]
Northwest Minnesota Tube
This "cold-core tornado" was the longest-lasting and best-defined of several rapidly evolving funnels and brief/small tornadoes we saw on this day over eastern North Dakota and northwestern Minnesota, see here from a farm clearing between forested belts. Fortunately, only damage to trees, sheds and grain bins was reported from this tornado. Not long afterward, we while cruising up US-75 (known … [Read more...]
Cold-Core Tornado
For years, I had wanted to observe one of the small, often beautiful tornadoes that develop from shallow, fast-moving supercells that develop in arcs of convection, just ahead of a compact middle-upper level low. Colloquially, they're called "cold-core" tornadoes, after the swath of cold air aloft that accompanies such cyclones, and that contributes to the instability supporting the supercells. … [Read more...]
Mountain Sky Canvas
After a short run of fishing in the Rio Grande, astride what used to be the border between the U.S. and the Republic of Texas, I hopped out of the "Texas" side to head back for the night, when peripheral vision of an orange flow over the distant ridge tops caught my attention. Fluidly brushed across the sky, flowing and evolving within every minute, wavy streak and clumpy swaths of cirrus clouds … [Read more...]
Space Ship Storm
The tornado outbreak of 3 May 1999 was the most destructive in Oklahoma history, and one of the deadliest. The Chickasha tornado was the fourth spawned by this classic supercell. In this wide-angle view, shot on 200-speed Sensia slide film, the tornado churns along almost perfectly centered under the large, smooth and nearly circular supercell base. Looming ominously over the darkened … [Read more...]
Rapids of Canyon Creek
Just a few dozen feet downstream from a tremendous slot-canyon waterfall, Canyon Creek tumbles noisily over boulders in the stream bed when it has sufficiently robust flow. Early autumn typically is the lowest-discharge period of the year for streams in the central Rockies, with the minimal amount of upstream snow remaining from the prior winter. However, I caught this one on the day after an … [Read more...]
- « Previous Page
- 1
- …
- 203
- 204
- 205
- 206
- 207
- …
- 385
- Next Page »