KORD is fixed, phew! Dropped to 63F last night with mostly cloudy
skies. Only a light shower last night so far with only 0.02” so far.
Clouds broke a bit more than expected, and with weaker winds off Lake
Michigan (max of 12 kt so far), it rose to 72F. It’s a bit surprising
that the showers have all weakened and it is dry at KORD all day, but
maybe the slightly warmer temperatures will induce a bit of instability
to generate more showers and thunderstorms with a bit more wind this
evening.
There may be a leftover light shower or drizzle tomorrow, but
otherwise no rain tomorrow as upper-level low moves away to the east and
weakens. However, lingering low-level moisture enhanced by
northeasterly winds off Lake Michigan will lead to persistent low-level
clouds until perhaps early afternoon, when breaks of sun will occur and
cause it to warm up, perhaps with a similar high to today. How warm it
gets depends on how much it clears out, with the NAM 3-km showing more
persistent clouds and therefore is cooler, while HRRR and ECMWF are
showing them clear out faster and therefore are warmer. Given that the
clouds were able to break yesterday and today, allowing the warmer
models to verify, I expect that to occur again tomorrow. The persistent
though light winds off the lake and clouds will also limit the cooldown
tonight, though it is possible that the low could occur near the end
(Friday 06z) when the sky is clearer and winds are a bit lighter.
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| Source: PivotalWeather |
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