Storms likely later on Saturday

Low clouds blanket most of the area this morning. They will lift slowly with the heating of the day and probably give way to at least some sunshine by afternoon.

Expect high temperatures this afternoon to range from the 60s in northeastern Minnesota to around 80 in the southwest. The Twin Cities probably will climb into the upper 70s, which is about 10 degrees warmer than normal for this date.

Be alert to the good chance of rapidly-changing weather later today.

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There are chances of heavy rain and isolated severe storms later today. Twin Cities National Weather Service

Our prospects for thunderstorms later today and tonight begin with a cold front that will track eastward from the Dakotas. A deep plume of tropical moisture extending from Texas to South Dakota will feed abundant water vapor into the warm air ahead of the front and lead to the possibility of heavy rain in the southern half of Minnesota.

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Water vapor satellite photo early Saturday. NOAA

Thunderstorms are forecast to develop across western Minnesota this afternoon and spread eastward through the afternoon and into tonight. They probably will not reach the Twin Cities area until after sunset.

Any additional rainfall on the saturated soils of central to southern Minnesota could easily cause more flooding.  The good news part of the rainy forecast, though, is that storms with heavy rain are not likely to train behind each other as they did on Wednesday.

Isolated severe weather is possible with some of the stronger storms later today. There is a marginal risk of severe storms later today as far east as Minneapolis. Forecast models indicate that storms are likely to weaken as they move across the Twin Cities, mainly because the heating of the day will be gone.

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The marginal risk area for severe weather is in dark green. NOAA Storm Prediction Center

Sunday

Sunday will be a cooler day with highs mainly in the 60s. Some scattered showers are possible over about the northern half of Minnesota.

Monday

A few showers might linger over the Arrowhead into Monday. Otherwise expect clearing skies and cool temperatures. Highs should range from the 50s in the north to the low and mid 60s in the south.

Tuesday-Thursday

Tuesday, Wednesday and Thursday will treat us to a dry and lovely stretch of late-September weather.

Bermuda

Tropical Storm Karl is centered just east of Bermuda this morning and is raking the island with strong wind and heavy rain.

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Bermuda is located at the small white dot on the western side of Tropical Storm Karl. NOAA

Karl is forecast to stregthen into a hurricane as it speeds northeastward away from Bermuda.

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Tropical Storm Karl is forecast to stregthen into a hurricane as it speeds northeastward away from Bermuda. NOAA National Hurricane Center