The calm after last night’s storms allowed temperatures to drop into the 60s this morning, but it’s going to be another hazy, hot and humid day — temperatures will rapidly warm up, reaching the mid to upper 90s this afternoon:
The humidity isn’t quite as bad as it was yesterday, but it will still be substantial enough to push the heat index into triple-digit territory:
Relief from the worst of the heat and humidity is on the way, in the form of a weak cold front that will drop through the Midstate tonight. Ahead of that front, some scattered storms will develop again this evening. It’s less than a 50-50 chance of rain in any one particular location, but Futurecast shows the scattered storms this evening:
A different forecast model (the HRRR) shows a similar scenario:
This is one of those scenarios where the storm pattern depicted by the model data is more important than the specific storm timing/placement. I’d go ahead with any outdoor plans, but be ready to adjust if you have to.
The evening storms are NOT as likely to produce severe weather, compared to the strong storms we saw yesterday afternoon and evening. Still, the Storm Prediction Center has included the Midstate in a “Marginal Risk” (level 1 of 5) of severe weather:
I wouldn’t worry about it — we’ll be here keeping an eye on things, just in case a storm or two gets frisky.
Behind the weak cold front, northerly winds will have an effect on our weather on Friday. It will still be hot, but temperatures will be a lot closer to normal:
More importantly, the humidity will drop! Dew points go from “ugh” at midnight tonight…
…to “hey, it’s not as bad” by noon Friday…
…to “this is almost nice” by midnight Friday night:
The drier air will stick around through the weekend. Both Saturday and Sunday will be hot, with highs around 90, but the lower humidity levels make a big difference:
The next decent chance of rain heads our way late Tuesday into early Wednesday.
Some good space stuff in the “Friday eve” links, amongst other nerdery…
- Other parts of the country have seen some nasty storms the last few days as well.
- According to an experimental extremely-long-range forecast, the risk of abnormally hot days (even by summer standards) will increase in several weeks.
- A new study shows that increased levels of aerosol particles in the atmosphere (both natural and man-made) can increase the intensity of thunderstorms. (I did similar research as a grad student, into the possible relationship between man-made aerosols and cloud-to-ground lightning polarity. We didn’t find any strong correlation.)
- The last place on Earth still observing carbon dioxide levels below 400 parts-per-million (that’s the “bad” threshold) was the South Pole. WAS.
- The LIGO observatory detected another gravitational wave — the ripple in space-time produced by the collision of two black holes over a billion years ago.
- A re-link from February, when the confirmation of gravitational waves was initially announced: what researchers can learn about the cosmos from gravitational waves.
- From the basic to the mind-bendingly complex, some questions and answers about black holes.
- The “spacecraft graveyard”: the desolate part of the Pacific Ocean where used-up space vehicles are directed to crash.
- Finally some good news: the World Health Organization think that there’s a “very low risk” of further spreading of the Zika virus by the Olympics.
- The 5k, not the marathon, is the “ideal” race for runners.
- How running shoes change the physiology of your feet.
- How your brain “hears” things when you’re asleep.
- Why do women live longer than men? (Actual scientific analysis, not just the set-up for a punch line…)
- I didn’t know this conspiracy “theory” was a thing: Mark Zuckerberg was asked recently if he is, in fact, a lizard. Oooooookaaaaaay.
- Someone in Ireland found a 10-kilogram chunk of butter buried in a bog. That’s not the weird part. The butter is two thousand years old!