The blocking ridge of high pressure drifted back to the west on Friday and Saturday, shifting the flow of moisture and wind as it moved. Instead of southwest winds and mid-90s, the forecast called for the 80s and northeasterly breezes. And 80% chance of rain, which means 0%. It’s a regional rule of thumb that the higher the forecasters’ confidence, the lower the actual odds.
It sounded like the typical cool front that has been visiting the region for the past month, more or less, in other words. The High to the west steers Canadian air down and allows Gulf of Mexico moisture to come up. The combination means not as warm as average, and not as dry as average. We’re actually east of the true drought region, for a change. [taps wood]
Saturday was warm and muggy. You know, mid 90sF and dewpoints in the 60s. Not Houston or Mobile humid, but plenty sticky for this part of the world. Red spots began appearing on the radar in late afternoon, and the wind seemed to be switching from south to north-ish. The front was oozing through. The sky grew overcast, and sort of grey looking, but nothing really to write home about. And then the rain started around seven thirty that night.
It pounded, bucketed, gooshed, and drenched everything. The usual places had high water, as they usually do. I suspect the ball game got called a wee bit early, but I didn’t check. The storms had some thunder and lightning, but not as much as the spring monsters did. One or two went severe, then weakened to “frog strangler.” The house ended up getting 1.4″. The airport, which is the official reporting site for statistical purposes, got half an inch. A quick survey the next morning showed that it ranged from a two inch rain (drops two inches apart) to .58″ to 1.9″. If you were under a storm, you got a rain, in other words. That’s how this summer has been in general. We have not gotten a lot of the huge rain-shields that cover tens or hundreds of square miles. Instead we got smaller, mostly stationary storms that dumped water over a limited area. Or we got “trains,” long chains of storms that covered the same area as they moved through, sort of like the path of the tornado outbreak in the early spring.
Sunday the sky got brighter but never really cleared. A very misty tropical rain started just after one, as I sat on the floor in the front room, surrounded by papers, shoeboxes, a garbage bag, and other evidence of sorting in progress. No wind moved the rain or the trees. That ended after an hour or so and left almost another .10″ in the rain gauge. The midnight temperature on Sunday was 73F, and had dropped to 71 by 0700. After the rain, a strong northeast wind began blowing, and the temperature continued to fall to 64F by 1600. I went walking and greatly enjoyed the refreshing change.
Sunday-Monday the low dropped to 62F with the north wind, so I aired out the house for the first time in weeks. The dewpoint also dropped. On Tuesday, I woke at 0530 to light westerly winds, a dewpoint of 40, and a temperature of 60. Wheeeeee! That’s the driest this area has been since May. You bet I was out and about enjoying the pre-dawn chill. I also opened all the windows and screen-doors to let as much cool, dry into the place as possible.
Heat will return, and humidity. But this is the warning shot across summer’s bow. Slowly, more and stronger cold fronts will race down from Canada, then from Siberia. The days grow shorter, the sycamore trees are dropping bark, the sun moves south. Summer is not over, no. But it is starting to stagger and weaken. Orion dominates the pre-dawn sky. We’re entering the fat season, harvest and canning season.