Friday, June 19, 2009

Looking forward to the weekend

There is some good weather news: Saturday looks warm, sunny and lake-worthy with highs reaching the low to mid 80s, even up at the cabin. We catch a break tomorrow, but Sunday won't be as reasonable, weather-wise, as clouds increase, a disturbance approaching from the southwest sparking a few hours of showers and T-storms during the midday and afternoon hours.

If you have a choice in the matter, front-load your weekend by scheduling your outdoor stuff tomorrow, if at all possible. Sunday won't be a total loss, one computer model, the more reliable model (WRF/NAM) brings in a little rain, but the GFS keeps us dry, statewide, all day Sunday. My hunch is that we will see some rain Sunday, maybe as much as a half inch if some areas.

More good news (at least for summer-weather lovers). There is little doubt we're sliding into a warmer, stormier weather pattern, one which should linger through the end of June, possibly the 4th of July holiday weekend. I think we'll sample 90 degrees next Tuesday and Wednesday, daytime highs mostly in the 80s right through the 80s.

Friday's SPC Outlook, showing the greatest risk of severe weather shifting south & east of Minnesota; the far southeastern counties are still in a slight risk of large hail and damaging winds.

Thursday's storm reports from SPC. Large hail (anything greater than 1" diameter, roughly quarter-size is considered severe) swept across the Detroit Lakes and Brainerd lakes area, golf ball size hail passing just north of St. Cloud. Check out the reports of damaging winds (229 separate reports nationwide!) stretching in an arc from the Chicago/Madison area southward to Florida. Amazing.

If it rains on Sunday (likely) keep in mind we still need the rain, at least the southern 2/3rds of Minnesota is still far too dry. Moderate to severe drought conditions linger from the Twin Cities across much of southeastern Minnesota. It will take a few more rounds of T-storms, another 2-4", to pull these counties back to "average".

Percentage of normal rainfall since April 1. Only far southeastern Minnesota, near the Iowa border, and northern counties (where this isn't much in the way of farmland). Rainfall over the last 3 months is running only 40-60% of normal over a huge swatch of central Minnesota.

Paul's Outlook

Today: Partly sunny and warm with an isolated T-storm possible later. A few storms over southeastern MN may turn severe later in the day. Winds: West 10-15. High: 83

Tonight: A fleeting evening shower (most of us will stay dry). Clearing skies. Low: 59

Saturday: Probably the nicer day of the weekend. Plenty of warm sun. Winds: West/northwest 5-15. High: 85

Sunday: More clouds, chance of showers, even a thunderstorm or two, a cooler day. Winds: Southeast 10-15. High: 79

Monday: Intervals of sun, sticky, an isolated late-day T-storm (best chance southwestern MN). High: 86

Tuesday: Hot sun, uncomfortably humid. High: near 90

Wednesday: Steamy and very warm. PM T-storms. High: 84

Thursday: More sun, turning less humid. High: 83

Friday: Lingering sun, more comfortable. High: 81

Saturday (June 27): Wet start, then afternoon sunshine. High: 83

Sunday: Partly sunny, still lake-worthy, best chance of PM T-storms coming up north. High: 85

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