It Hasn't Been As Humid This Summer

Welcome to the sunnier day of the weekend with 70s north and mid 80s in the metro. The next (unusually strong for August) Alberta Clipper pushes a smear of showers and T-storms across the state Sunday, with temperatures in the 70s statewide, and cool 60s up north. Winds may gust to 40 mph Monday before the pattern mellows by midweek. Check the blog for more details. -Todd Nelson

August 12, 2023 at 3:59AM

Large Hail in the Twin Cities on Friday

Thanks to Mike Holisky for the picture below. Large hail fell across parts of the metro on Friday evening. Mike reported nearly golf ball size reports, but there were a couple reports of up to baseball size in the Twin Cities - YIKES!

Large Hail in Minneapolis on Friday (Mike Holisky/The Minnesota Star Tribune)

Storm Reports From Friday

It was a busy day across the county warning area with a number of severe weather reports. Large hail was one of the main concerns with some 3" diameter hail reports coming in near Dassel. There was a baseball size (2.75") report from Buffalo Lake, and several 2" to 2.5" reports in Minneapolis.

Storm Reports From Friday (IEM/The Minnesota Star Tribune)

Weather Outlook This Weekend

The weather outlook for the weekend ahead looks like a 50/50 split. Sunny and mild weather will take us through Saturday, but Sunday looks like a fairly soggy day with the potential of seeing some 1.00" plus rainfall tallies across parts of the state, especially north of the Twin Cities. Temperatures will also be quite a bit cooler with readings only warming into the 70s. Some folks across the northern part of the state will only make it into the 60s. Keep an eye out for any Perseid meteor showers early Saturday evening before the clouds rolls in.

Twin Cities Weather Outlook This Weekend (Praedictix/The Minnesota Star Tribune)

Perseid meteor shower Peaks This Weekend

"When, where & how to see it - The Perseid meteor shower is one of the best shooting star displays of the year and it's currently active. The Perseid meteor shower (also known as the Perseids) is active every year from mid-July to late August. This year the shower will peak around Aug. 13, 2023, according to skywatching site In The Sky, 2023 will be a good year for the Perseids as the moon will only be 10% illuminated. The Perseids are caused by Earth passing through debris — bits of ice and rock — left behind by Comet Swift-Tuttle which last passed close to Earth in 1992. The Perseids peak when Earth passes through the densest and dustiest area on Aug. 11-12. Years without moonlight see higher rates of meteors per hour, and in outburst years (such as in 2016) the rate can be between 150-200 meteors an hour. On average, you can expect to see up to 100 meteors per hour during the Perseid's peak, according to NASA. In 2022, the Perseids were affected by the full moon illuminating the sky and washing out fainter meteors. However, this year the moon will provide minimal disturbance to the meteor shower as it will only be 10% illuminated during the time of the peak."

Perseid Meteor Shower (Future/The Minnesota Star Tribune)

A Few T-Showers Midweek

The simulated radar from AM Saturday to PM Sunday. Weather conditions on Saturday will be dry, but scattered showers and some storms will develop on Sunday with some soaking rains for a few locations.

Simulated Radar From AM Saturday to PM Sunday (COD Weather/The Minnesota Star Tribune)

Rainfall Potential Through The Weekend

Sunday could be a potentially soggy day with a million-dollar soaking for some, especially north of the metro. Some locations across the northern half of the state could see in excess of 1" of rain. The Twin Cities could see a decent amount of rain, but the heaviest looks to stay north.

Precipitation Outlook Through Early Next Week (WeatherBell & NOAA's NDFD/The Minnesota Star Tribune)

6th Driest Meteorological Summer on Record

It has been very dry across much of the region so far this summer with only 4.01" of rain falling at the MSP Airport since June 1st. That is more than -6.00" below average and is the 6th driest Meteorological Summer on record with the driest being 1.65" set in 1894. Interestingly, the last summer (2022) was just as dry.

6th Driest Summer on Record at MSP (NOAA NWS/The Minnesota Star Tribune)

10th Hottest Meteorological Summer on Record

It has also been a hot summer with readings running well above average since June 1st and good enough for the 10th hottest Meteorological Summer on record so far. Note that 2021 was the 3rd hottest and 2022 was the 12th hottest From June 1st to August 10th.

10th Warmest Summer on Record at MSP (NOAA NWS/The Minnesota Star Tribune)

60 Day Precipitation Anomaly

The map below shows the 60 day precipitation anomaly, which indicates that some locations are nearly -3.00" to nearly -6.00" below average (in red/pink) since mid June. There are a few locations across the state that have surpluses, but most locations are well below average.

60 Day Precipitation Anomaly (WeatherBell/The Minnesota Star Tribune)

Drought Update

There wasn't much change in the drought from last week, but drought conditions have deepened since the beginning of summer. Some areas across the region are considered in an Extreme Drought showing up (in red). Interestingly, the last time that parts of Minnesota were in an Extreme Drought was back in mid December, nearly 7 months ago.

Minnesota Drought Update (US Drought Monitor/The Minnesota Star Tribune)

Hottest Days of 2023 So Far

The hottest day of 2023 (so far) was Thursday, July 27th with a high of 96F and heat index values peaking around 105F to 110F. Uffda! There have been (23) 90F days this year. Our average number of 90F days is 14.

Hottest Day of 2023 So Far (NOAA NWS/The Minnesota Star Tribune)

Average Number of 90F Days At MSP

Looking at the last 30 years, the average number of 90F days at the MSP Airport is (14). July is the hottest month with an average of (6) 90F days. This year we've had (23) 90F days, last year we had (18) days in the 90s and in 2021 there were (27) days in the 90s. The most number of 90F days in any single year was (44) set in 1988.

Average Number of 90F Days At MSP (NOAA NWS/The Minnesota Star Tribune)

Twin Cities Weather Outlook For Saturday

The weather outlook for the Twin Cities on Saturday, August 12th will be mild with temps warming into the mid 80s, which will be slightly above average for this time of the year. Skies will be sunny, but clouds will eventually roll in from the west late in the day in advance of our next storm system that will bring soggy weather to the region on Sunday.

Twin Cities Weather Outlook For Saturday (Praedictix/The Minnesota Star Tribune)

Meteograms For Minneapolis

The hourly temps through the day Wednesday shows readings starting in the mid 60s and warming into the low/mid 80s in the afternoon, which will be a little above average for this time of the year. Weather conditions will be quiet under mostly sunny skies. Northwesterly winds will be a little breezy with gusts approaching 25mph in the afternoon.

Hourly Temps & Sky Conditions For Minneapolis on Saturday (Praedictix/The Minnesota Star Tribune)
Hourly Wind Gusts & Direction For Minneapolis on Saturday (Praedictix/The Minnesota Star Tribune)

Weather Outlook For Saturday

Temps on Saturday will warm into the 80s across the southern half of the state, which will be a little above average for this time of the year. However, folks in the northern half of the state will only warm into the 70s, which will be a little below average. Much of the region will stay dry and sunny, but showers will move in from the west by Sunday.

Weather Outlook For Minneapolis (Praedictix/The Minnesota Star Tribune)
Highs From Average on Saturday (Praedictix/The Minnesota Star Tribune)

Extended Temperature Outlook For Minneapolis

The 5 day temperature outlook for Minneapolis doesn't look too bad and certainly not hot heading into mid month. Saturday will be a dry and mild day with reading in the mid 80s, but soggy weather arrives Sunday with temps only warming into the mid 70s. Monday will be cooler with lingering showers and gusty NW winds. Dry weather returns Tuesday and Wednesday with near average temps.

5 Day Temperature Outlook For Minneapolis (Praedictix/The Minnesota Star Tribune)

Stickier Dewpoints Into the Week Ahead

The dewpoint forecast into the weekend and early next week will hover around the low/mid 60s, which will be a little sticky, but not too bad. It gets a little more comfortable as we head into the middle part of next week with readings around 60F.

5 Day Dewpoint Outlook For Minneapolis (Praedictix/The Minnesota Star Tribune)

Extended Weather Outlook For Minneapolis

After a sunny and mild Saturday, showers and storms push through the region on Sunday with locally heavy rainfall. Lingering showers are possible on Monday with temps still holding into the mid 70s. The middle part of next week looks better and brighter with temps warming back into the lower 80s. There could be an isolated t-storm chance late Wednesday with gusty winds developing through the 2nd half of the week.

7 Day Weather Outlook For Minneapolis (Praedictix/The Minnesota Star Tribune)

Extended Temperature Outlook For Minneapolis

Temps in the Twin Cities will be a little cooler Sunday and Monday with highs only warming into the 70s. Some folks across the northern half of the state won't even make it out of the 60s. We'll get a little boost mid-week next week with readings back in the 80s before a slightly warmer bump as we approach next weekend.

NBM Extended Temperature Outlook (WeatherBell/The Minnesota Star Tribune)

Weather Outlook

Sunday looks like a fairly unsettled day across the Midwest with scattered showers and storms, some of which could be strong to severe with locally heavy rains. That storm will move into the Northeastern US early next week with soggy skies. The next chance of rain for the Midwest will be during the middle part of next week, but the threat remains quite isolated. Meanwhile, the model below is suggesting some tropical activity in the Eastern Pacific by next weekend.

National Weather Outlook Through Next Weekend (Tropical Tidbits/The Minnesota Star Tribune)

8 to 14 Day Temperature Outlook

According to NOAA's Climate Prediction Center, the 8 to 14-day temperature outlook shows Warmer than average temperatures across much of the nation, including the Midwest.

8 to 14 Day Temperature Outlook (NOAA CPC/The Minnesota Star Tribune)

8 to 14 Day Precipitation Outlook

According to NOAA's Climate Prediction Center, the Western US looks a little more unsettled as we approaching the back half of the month. Meanwhile, drier weather will settle in from Texas to the Ohio & Tennessee Valley.

8 to 14 Day Precipitation Outlook (NOAA CPC/The Minnesota Star Tribune)

It Hasn't Been As Humid This Summer
By Paul Douglas

Hey, is that a silver lining or am I still hallucinating? No comment. It has been a summer of smoke and drought. No big soaking storms, just at ease of flash and dash showers. Since May 1 St. Cloud has picked up only 4.7" rain, the driest such period on record - even drier than the Dust Bowl of the 1930s.

There is one faint positive: nagging drought has meant fewer sweaty, swampy days where you walk outside and it feels like you're stuck in a sauna. The metro area has picked up only 6 days with a dew point of 70For higher. In an average year MSP sees 19 drippy days with a dew point of 70+. Hey, it's a start.

Welcome to the sunnier day of the weekend with 70s north and mid 80s in the metro. The next (unusually strong for August) Alberta Clipper pushes a smear of showers and T-storms across the state Sunday, with temperatures in the 70s statewide, and cool 60s up north. Winds may gust to 40 mph Monday before the pattern mellows by midweek.

No 90s in sight, but the Minnesota State Fair is creeping up. Oh yeah.

Extended Forecast

SATURDAY: Warm sun, lake-worthy. Winds: NW 10-20. High: 85.

SATURDAY NIGHT: Increasing clouds. Winds: NW 5-10. Low: 62.

SUNDAY: Mainly PM showers, T-storms. Winds: SE 10-20. High: 75.

MONDAY: Hello September. Wind-whipped showers. Winds: N 15-35. Wake-up: 61. High: 69.

TUESDAY: Sunny and warmer. Winds: W 8-13. Wake-up: 56. High 81.

WEDNESDAY: Plenty of sunshine. Winds: S 15-25. Wake-up: 64. High: 87.

THURSDAY: Showery and very windy. Winds: NW 20-40. Wake-up: 63. High 73.

FRIDAY: Sunny with less wind. Winds: W 8-13. Wake-up: 60. High 81.

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.

Average High/Low for Minneapolis

August 12th

Average High: 81F (Record: 94F set in 1886 & 1965)

Average Low: 64F (Record: 45F set in 1961)

Record Rainfall: 2.42" set in 1985

Record Snowfall: NONE

Twin Cities Climate Data For August 12th (Praedictix/The Minnesota Star Tribune)

Sunrise/Sunset Times for Minneapolis

August 12th

Sunrise: 6:11am

Sunset: 8:24pm

Hours of Daylight: ~14 hours & 13 minutes

Daylight LOST since yesterday: 2 Minutes & 36 Seconds

Daylight LOST since Summer Solstice (June 21st): ~ 1 Hour & 24 Minutes

Moon Phase for August 12th at Midnight

3.1 days before new moon

Moon Phase For August 12th at Midnight (The Minnesota Star Tribune)

National High Temps on Saturday

Temperatures on Wednesday will still be well above average across the Southern US with widespread record heat across Texas. It'll be a little cooler in the Western US and across the Central US, where areas of precipitation will be possible.

National Weather Outlook For Saturday (Praedictix/The Minnesota Star Tribune)
Highs From Average on Saturday (Praedictix/The Minnesota Star Tribune)

National Weather Saturday

The weather outlook on Wednesday will feature showers and storms across parts of the Central US and down into the Southeast. Some of the storms could be strong to severe with locally heavy rainfall.

National Weather Outlook For Saturday (Praedictix/The Minnesota Star Tribune)

National Weather Outlook

The weather outlook through Thursday shows unsettled weather across the Central US. Some of the storms could be strong to severe with locally heavy rainfall.

Weather Outlook Through Sunday (NOAA WPC/The Minnesota Star Tribune)

Extended Precipitation Outlook

According to NOAA's Weather Prediction Center, areas of heavy rainfall will be possible from the Midwest to the Great Lakes over the next several days. We'll also see a decent rain blob across the Central US associated with some thunderstorm activity. Monsoon thunderstorms will continue in the Southwest, but Texas and the Pacific Northwest look to remain dry.

Extended Precipitation Outlook (NOAA WPC/The Minnesota Star Tribune)

Climate Stories

(NOAA/The Minnesota Star Tribune)

"GPS satellites threatened more by mild solar storms than monster sun flares"

"The most intense space weather event of the past two decades hit GPS satellites' orbit just after a solar minimum. Mild solar storms can cause more serious problems to GPS satellites than once-in-a-century events, a new study has found. Storms that erupt from the sun create challenges for satellites in Earth's orbit. Scientists are trying to understand these events better to help operators protect their spacecraft. And sometimes, they find surprises. A new study by researchers from the British Antarctic Survey (BAS) discovered that satellites in the Global Positioning System (GPS) orbit may suffer more from milder solar storms than from the frightening events that wreak havoc on power grids and telecommunication networks on Earth."

"Yellow jerseys of the fireline: A day fighting wildfires can require as much endurance as riding the Tour de France"

"For three weeks in July, the world's most elite bike racers climb steep mountains and sprint along historic cobblestones to capture the coveted yellow jersey or the race leader in the Tour de France. It's a 22-day feat of human endurance that requires constant eating and drinking to manage the average daily energy demand of about 6,000 calories, equivalent to around 12 McDonald's Happy Meals, and just over 1.5 gallons of water. Nearly 5,000 miles away in the mountains of North America, radios crackle with chatter from a wildfire incident command post, air operations and other crews fighting a wildfire. Up the fireline, the swings of Pulaskis, axlike hand tools, are carving a fuel break into the land. The weather forecast predicts a high of nearly 100 degrees Fahrenheit (38 C) with wind, a combination that can push the fire high up into the canopy of dense lodgepole pines on the mountainside. The yellow jerseys here are sooty, sweat-stained and flame-resistant, with a strong, earthy odor."

"The largest freshwater wind farm in the world"

"World's largest freshwater wind farm Windpark Fryslân began construction in 2020, and, by the fall of 2021, was already generating power. In 2022, the wind farm generated 1.236 terawatt hours. And its builders anticipate it will reach 1.5 terawatt hours every year. That's roughly 1.2 percent of the all the electricity used in the Netherlands. It's enough to power around 500,000 homes. Constructing the wind farm Constructing a wind farm in a lake (Lake IJssel in the central Netherlands) was challenging, to say the least. But the Netherlands has experience with building dikes and dams for flood control. One of the companies that helped build the wind farm, Van Oord, said: A major constraint was the size of ships that could be used to transport construction materials and turbine components to the site. The vessels had to both fit through the locks in the dike and operate in the shallow waters of the lake. In addition, installing the rotors, which are 130 meters (430 feet) in diameter, required finding windows of relative calm in a naturally windy place."

Thanks for checking in and don't forget to follow me on Twitter @TNelsonWX

@TNelsonWX (The Minnesota Star Tribune)
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Todd Nelson

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