Highs From Saturday

Temperatures were a bit flip-flopped across the state Saturday! Cloudy and rainy skies across southern Minnesota helped to keep temperatures down. Meanwhile, northern Minnesota saw sunnier skies, and highs climbed into the 80s.

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Highs Sunday

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Rain Saturday And Month-To-Date Precipitation Update

Rain mainly impacted portions of southern Minnesota on Saturday, delaying the Twins game and making for a gray day across the region. Windom and Paynesville both picked up over an inch of rain, with officially 0.44" of rain at the MSP airport.

As we look at rainfall statewide so far in August, most areas are running below average, including by a little over a half an inch here in the Twin Cities. There are portions of north-central Minnesota that are slightly above average. The only climate location that has picked up an inch of rain so far this month is Duluth. Meanwhile, areas like Green Bay and Huron are over 2" above average so far in August.

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Severe Weather Saturday Evening

Not only did storms bring rain on Saturday, but by the evening a few of them in southern Minnesota had prompted Tornado Warnings to be issued. There were two reports of tornadoes - one on the west side of Windom which caused some damage, and another brief touchdown four miles southeast of Fairmont.

Here's a picture of some of the damage in Windom via the Cottonwood County Emergency Management on Facebook. They have more photos of some of the damage, which you can view by clicking here. Here's what they said: "What was believed to be a weak tornado hit Windom this evening. I spent the evening looking at damage and reporting the damages to the National Weather Service in Sioux Falls as well as the Minnesota Homeland Security Emergency Management Office. The track of the damage was roughly only 100 feet or so wide and started just behind a home on the corner of river road and 13th street. The track continued through the fairgrounds, Winfair Elementary, and along 15th street. It then jumped the highway and went up 16th street toward Cottonwood Lake. Our office has received no reports of homes being damaged to the point of being uninhabitable, and no injuries or deaths have been reported, so that is the silver lining in this. Unfortunately some homeowners will need to cleanup again. The Cottonwood County Fairgrounds received some damage to buildings, which is unfortunate with the fair starting Tuesday. The Riverfest Fireworks Can Bin also appears to be destroyed."

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Severe Threat Monday And Tuesday

We will be tracking the potential for more severe storms Monday and Tuesday across portions of the state. On Monday, morning storms are not expected to be on the strong side. However, a few of the storms that redevelop across western Minnesota during the afternoon hours could contain some large hail or strong winds gusts. Due to this threat, a Marginal Risk of severe weather is in place.

On Tuesday, a few storms across eastern Minnesota could have the potential to be on the strong side as well, mainly containing a hail and wind threat. A Marginal Risk of severe weather is also in place, and this one does include the Twin Cities.

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A Fairly Nice Stretch of Weather This Week
By Paul Douglas

Where is Albert Einstein when you need him? With relativity in mind (why DO my relatives always stay a few hours too long?) please answer me this: why do summers fly by, while winter feels never-ending? August fun zips by in a warm, twinkle of an eye, while January's brutish near-death experience lasts an eternity. One thing is certain: with an average of 90.3 days/year with at least an inch of snow on the ground, Minnesotans never take their summers for granted.

Models keep the Twin Cities drier/longer today, with one surge of rain over the Red River Valley and heavier T-storms rumbling south over Iowa. A few T-showers may arrive tonight and Tuesday, with a dry sky Wednesday and much of Thursday. The next surge of hot, sweaty air sets off a marauding gang of T-storms late Thursday, and then we break out into an airmass that would feel right at home in mid-July. Models hint at metro highs near 90F next weekend.

The GFS model predicts a few 90s for the State Fair, with a 40 percent risk of gastric distress.

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Extended Twin Cities Forecast

MONDAY: Some sun, storms tonight. Wake up 65. High 81. Chance of precipitation 40%. Wind SE 3-8 mph.
TUESDAY: Unsettled, another shower or T-storm. Wake up 65. High 79. Chance of precipitation 60%. Wind NW 5-10 mph.
WEDNESDAY: Sunny and less humid. Wake up 58. High 78. Chance of precipitation 10%. Wind N 7-12 mph.
THURSDAY: Sticky sun, T-storms arrive late. Wake up 60. High 80. Chance of precipitation 40%. Wind S 8-13 mph.
FRIDAY: Stormy start, then partial PM clearing. Wake up 63. High 82. Chance of precipitation 40%. Wind NW 5-10 mph.
SATURDAY: Hot sun, T-storms likely up north. Wake up 68. High 90. Chance of precipitation 30%. Wind S 10-20 mph.
SUNDAY: Some sticky sun, few T-storms. Wake up 69. High 90. Chance of precipitation 40%. Wind SW 8-13 mph.

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This Day in Weather History
August 12th

2000: Record-setting dew points develop in Minnesota. The Twin Cities have a dew point of 76, with a rare dew point of 80 at Faribault.

1821: An eight-day heat wave ends at Ft. Snelling. Temperatures were in the 90's each day.

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Average Temperatures & Precipitation for Minneapolis
August 12th

Average High: 81F (Record: 94F set in 1965)
Average Low: 63F (Record: 45F set in 1961)
Average Precipitation: 0.15" (Record: 2.42" set in 1985)

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Sunrise/Sunset Times for Minneapolis
August 12th

Sunrise: 6:07 AM
Sunset: 8:28 PM

*Length Of Day: 14 hours, 21 minutes and 14 seconds
*Daylight LOST Since Yesterday: ~2 minute and 37 seconds

*When Do We Drop Below 14 Hours Of Daylight? August 17th (13 hours, 59 minutes, and 23 seconds)
*Next Sunrise At/After 6:30 AM: August 28th (6:30 AM)
*Next Sunset At/Before 8:00 PM: August 27th (7:59 PM)

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Minnesota Weather Outlook

With an area of low pressure moving through the upper Midwest Monday and a stalled out frontal boundary to our south, scattered showers and storms are expected, but the day does not appear to be a washout.  Highs will range from the 60s in portions of northwestern and northeastern Minnesota to the low 80s in southwest Minnesota.

Highs on Monday will be below average across the state, from a few degrees across southern Minnesota and along the North Shore to 15F degrees below average along the Red River. The average high for August 12th in the Twin Cities is 81F.

A nice week temperature-wise is ahead here in the Twin Cities, with highs in the 70s through Thursday. The coolest day will be Tuesday, with highs about 8F degrees below average. We are watching a warming trend by the end of the week, however, and highs on Friday will pop above average.

Temperatures will continue to warm into the weekend, and both the GFS and European models are printing the potential that highs will approach 90F nex Sunday before some slow cooling to begin the week of the 19th. Models are showing the potential of another warm-up for the first weekend of the State Fair.

Two areas of heavy rain will be possible through Tuesday evening across the state with the rain expected to move in Monday and Tuesday. In these areas - portions of southeastern and northwestern Minnesota - rainfall amounts of a half an inch to an inch will be possible.

We'll watch those rain chances Monday into Tuesday here in the Twin Cities. Another chance of rain will come in late in the week and potentially into the weekend.

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National Weather Forecast

An area of low pressure moving through the Upper Midwest Monday along with a stationary front will bring periods of showers and storms from the Northern Plains (where a second area of low pressure will also be positioned) to the Great Lakes. Another trough of low pressure could spark showers and storms across the Central Plains. A stationary front in Canada could help bring some rain to portions of New England. Meanwhile, typical summertime storms will be possible across portions of Florida.

Summer heat will continue to bake parts of the southern United States Monday with highs in the 100s for areas like Oklahoma City, Dallas, and San Antonio. Heat index values will be higher when you factor in the humidity, even topping 110F in Little Rock, New Orleans, and Brownsville.

Some of the heaviest rain through Tuesday evening will be in the upper Midwest and Great Lakes where totals could top 2" in some locations. Downpours could lead to rainfall amounts of 1-2" across portions of Florida as well.

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Twin tornadoes whip through northern Europe, hospitalizing at least 14 people

More from CNN: "At least 14 people were hospitalized after a tornado tore through southwestern Luxembourg Friday, damaging over 160 houses before progressing into eastern France. Another tornado also struck the city center of Amsterdam, the Dutch capital, the same day, gathering debris and whipping across a river. In Luxembourg, wind speeds reached 128 kilometers per hour (80 miles per hour), Agence France-Presse (AFP) reported. Two people sustained more serious injuries, the government said, and remained in hospital on Friday night."

Hottest temperature ever recorded in Colorado under review

More from 9NEWS: "The thermometer spiked to 115 degrees at John Martin Reservoir on July 19, but in Bent County, where triple digits are normal, it slipped passed the media, the National Weather Service (NWS), and the Colorado Climate Center. “I didn’t have the siren go off in my office. 'Beep, beep, beep, we have a new temperature record,'" said assistant state climatologist Becky Bolinger, joking about how there is now automatic alerts."

Climate change and overfishing are increasing toxic mercury levels in fish, study says

More from CBS News: "Mercury levels in the seafood supply are on the rise, and climate change and overfishing are partially to blame, according to a new study. Scientists said mercury levels in the oceans have fallen since the late 1990s, but levels in popular fish such as tuna, salmon and swordfish are on the rise. According to a new study by Harvard University researchers in the journal Nature, some fish are adapting to overfishing of small herring and sardines by changing their diets to consume species with higher mercury levels. Based on 30 years of data, methylmercury concentrations in Atlantic cod increased by up to 23% between the 1970s and the 2000s. It links the increase to a diet change necessitated by overfishing."

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Thanks for checking in and have a great Monday! Don't forget to follow me on Twitter (@dkayserwx) and like me on Facebook (Meteorologist D.J. Kayser)!

 - D.J. Kayser

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