Forecast: Pouring rain for morning rush hour in metro Detroit

Rain followed by potential threat of severe weather


DETROIT – The map I'm including here with today's forecast is my hand-analyzed surface analysis this afternoon -- it clearly shows the well-developed storm to our west.

I really enjoy hand-analyzing these maps. They give me a great handle on this aspect of the weather situation, and sometimes show me things that the computers miss. This storm is literally going to take the entire week to move across the Great Lakes, leaving us with a pretty wet week featuring periodic thunderstorms, rain, and showers -- and lots of time-consuming maps for me to plot!

Our one severe weather threat is Tuesday evening, which I'll detail below.

Scattered evening rain will tend to diminish tonight, but be replaced by a heavier rainfall later tonight. Lows initially in the mid to upper 40s, then rising a bit toward dawn. East wind at 10 to 15 mph.


Tuesday forecast:

We'll start our Tuesday with pouring rain (impacting the morning rush hour), then the rain will tend to diminish around lunchtime, with some sunshine developing (afternoon rush should be dry). However, scattered thunderstorms could develop Tuesday evening, with severe weather possible. Right now, the biggest threat is large hail and damaging wind.

However, if we get enough afternoon sunshine and warm up enough, then there could even be an isolated tornado threat.

Follow me on Twitter at @PaulGrossLocal4, and I'll let you know if there are any developments.

Highs near 60 north of I-69, then progressively warmer as you head farther south, with temps possibly near 70 closer to the state line. East wind becoming south-southeast at 10 to 20 mph.

Wednesday forecast:

Mostly cloudy (meaning that some sun is possible), with a chance of showers and isolated thunderstorms on Wednesday, although I don't expect any severe weather. Highs in the mid 60s.

Rest of week forecast:

Then, we continue with a period of periodic rain or light showers Thursday through Sunday, with highs generally in the 50s. Hopefully, we break out of this pattern early next week.

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