Friday, November 7, 2008

Morning Rain, Cooler

The long awaited cold front moved through early this morning and brought a line of showers very early. Since then, the band of showers has expanded in coverage ahead of the main upper air forcing. At this time, the back edge of the rain is very close to Winona and should slowly progress east through the morning hours. Before the rain ends by noon, expect a wet morning with moderate rain at times as you head to work or school. Temperatures are fairly tricky today, especially trying to determine whether the sun returns this afternoon. I think clouds hang around through early afternoon and then we may see the sun return. If this scenario is correct, I think we manage to top out near 62 this afternoon. If the clouds hang around until this evening, highs don't make it out of the 50s. Tonight should be clear with light winds, but excess soil moisture will likely keep us from getting as cold as we could. Still, I temperatures tomorrow morning will be near 42.

The weekend looks great with abundant sunshine and highs in the upper 60s Saturday but cooler on Sunday with highs in the lower 60s. Our next weather maker will move onshore in the Pacific Northwest tomorrow and take a few days to make it towards our neck of the woods. This system never really deepens and digs very far south, but we should at least have another chance of rain and storms beginning Tuesday. Considerable model differences make it difficult to determine whether severe weather will be possible with this system. At this time, I'm thinking a minimal risk given the poor upper level pattern. I may have another update over the weekend to update my thoughts on the severe weather possibilities.

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