Veteran TV sports announcer Brent Musberger kept referring to the high humidity Monday night in the Virginia Tech-Boise football game in Washington D.C., especially when the camera showed images of Boise players being treated for cramps. So was it?
At Washington’s Reagan National Airport, the temperature minutes before kickoff was 80 degrees with a dew point of 55, for a humidity of 42 percent. Two hours later, by the third quarter, it was 75 with a dew point of 60 … the more narrow margin between temperature and dew point raised the humidity to 60 percent. Meanwhile, in Boise, Idaho, the temperature fell from 72 to 68, with a dew point hovering in the mid 20s — and a humidity in the teens.
So 2 conclusions: (1) For Washington, D.C., in early September, that’s not very bad humidity at all. (2) Compared to bone-dry Boise, almost every day in Washington is a “humid” day. Of course, Boise ended up winning, so it didn’t seem to matter.
In Southwest Virginia, dew points have risen into the 50s mostly after a couple of days in the 40s, and that will mean a bit warmer lows on Tuesday morning, but still dry enough that highs could shoot well into the 80s with bright sunshine today, possibly low 90s. A weak cold front on Wednesday will be just enough to trim the temperatures back a bit — upper 70s to mid 80s in the day, 50s/low 60s at night , close to normals– for most of the rest of the week.
The big question hanging out there revolves around humidity: How much of Tropical Storm Hermine’s moisture will get pulled ahead of this weekend’s cold front into our region? The early call is some, but not a ton, which will create a chance of showers and storms on Saturday from what previously looked like a totally dry frontal passage. But we have a few days to see whether that pumps up to more intense rain or if it goes dry again.