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What is the magnitude of the temperature of the snow cover?
As we enter the period of the year when we begin to see almost consistent snow accumulations, it is interesting to take a look and see how much this really affects our temperatures. This table, courtesy of Iowa Environmental Mesonet, shows the average of our maximum and minimum values per month of winter, with or without snow cover. In November, our average maximum may be 14 ° C colder when we have a layer of snow on the ground (an average maximum of 46 ° F with no snow cover and 32 ° F with snow cover). This type of impact, although at a slightly lower temperature difference, also occurs from December to February. So, if you want warmer temperatures in the winter … you probably hope that there will be no snow on the ground.
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Cold start until November
Brr … I'm already getting tired of shivering. Sorry, my favorite seasons are spring and fall and I feel like we missed them this year. Anyway, in the first 11 days of the month, we only had one day with an above-average high. Meanwhile, the first 10 days of November had an average temperature of -32.6 ° F (-6.6 ° F) below average and the 23rd coldest November ever recorded. The sister cities of NWS have presented a different point of view on the cold weather it has done so far this month. They found that the temperatures observed so far this month are more typical of the Alaskan coast!
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Cold Start To The Week – Back 40's mid-week!
By D.J. Kayser, Paul Douglas's replacement
This is the time of year when the snow begins to accumulate on the yards of the area. As early as Sunday morning, there was a 1 "thick snow at the Twin Cities Airport.
This snow cover makes a difference on our temperatures, of course. According to data collected by the Iowa Environmental Mesonet between 1938 and 2018 for the MSP airport, the average November peak with no snow cover is 46 ° F. With the snow cover, this drops to 32F. A blog will illustrate the impact of snow cover on the rest of the winter on the blog.
Our cold weather continues Tuesday with peaks only in the '20s. "Fun" fact – the only day we had an above-average peak this month was the first. We will have our second highest above average mid-week peaks in the 40s, but the heat will be short-lived with a fresh burst of fresh air for the weekend. A longer time, extended to 40 degrees, is however possible before the week of Thanksgiving. The only chance of precipitation over the next seven days seems to be a few flurries at the end of the week.
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Extended Twin Cities Forecast
MONDAY: Cold. Mix of sun and clouds. High 22. Low 10. Chance of precipitation 0%. Wind NW 5-10 mph.
TUESDAY: sunny sky. Feel like December. High 25. Low 19. Chance of precipitation 0%. Wind NO 3-8 mph.
WEDNESDAY: much hotter. Some clouds passing. High 42. Low 30. Chance of precipitation 0%. Wind SW 5-10 mph.
THURSDAY: clouds rising. High 44. Low 28. Chance of precipitation 0%. Wind SW 5-10 mph.
FRIDAY: A few flurries. Cloudy sky. High 35. Low 20. Chance of precipitation 20%. Wind NE 10-15 mph.
SATURDAY: Decreased clouds at the end of the day. High 28. Low 17. Chance of precipitation 10%. Wind NNE 10-15 mph.
SUNDAY: Sunnier half of the weekend. High 33. Low 28. Precipitation risk 0%. Wind SW 5-10 mph.
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This day in the history of the weather
November 12
2000: A winter storm system produces a narrow band of deep snow in the extreme west of Minnesota. Winds towards the end of the event were recorded between 15 and 25 mph, which caused a blowing snow resulting in visibility of 1 to 1.5 miles. Some snow totals included: Canby (Yellow Medicine County) with 6.5 inches, Madison (Lake County Talking) with 6.0 inches.
1940: Record highs are established in west-central Minnesota. Alexandria records a high of 8 degrees Fahrenheit, Springfield and Willmar have highs of 10 degrees, and St. Cloud and Minneapolis have highs of 11 degrees.
1933: A dust storm hits southwestern Minnesota, while a snowstorm rages in the northwest of the state.
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Average Minneapolis Temperature and Precipitation
November 12
Average high: 43F (Record: 65F established in 2001)
Low average: 28F (Record: -4F established in 1966)
Average rainfall: 0.06 "(Record: 0.90" set in 1965)
Average snow: 0.2 "(Record: 8.5" in 1940)
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Sunrise and sunset times for Minneapolis
November 12
Sunrise: 07:06
Sunset time: 4:47 pm
* Duration of the day: 9 hours, 40 minutes and 36 seconds
* Light of the day lost since yesterday: ~ 2 minutes and 28 seconds
* Next sunrise at / after 7:30 am: December 1st (7:31 am)
* First sunset: December 6 to 14 (16h31)
* When do we dive below 9.5 hours of daylight ?: November 17 (9 hours, 28 minutes, 47 seconds)
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Weather Forecast Minnesota
While a few flurries or snow flurries will be possible in the extreme north of Minnesota on Monday, most of the state will see a mix of clouds and sunshine. The tops will be cold – stuck only in teens and 20 years old.
The dark blue colors continue to appear when we leave the high charts at the beginning of the week, with Monday's highs 15 to 25 degrees below average in the state.
We will stay cold until Tuesday before the highs reach the 40s on Wednesday and Thursday. This warm up is short lived, however, while a new wave of cold air sets in for the weekend. The models indicate the potential of an extended stretch with highs in the 40s for Thanksgiving week.
We'll see a pretty dry week here in the Twin Cities, with the only real chance of snow (probably snow flurries or very light flurries) from Friday to Friday night.
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National weather forecast
Two main stories will take place across the country on Monday. A cold front growing to the south and east will allow the snow to fall from the Texas grip in the Ohio Valley. The heaviest (out of the mountains) will fall through parts of Texas, with a maximum of 4 to 7. "Learn more about this important snow potential in a moment.A low pressure zone will move along the North Gulf Coast Heavy rains in parts of the southeastern and mid-Atlantic shoreline Fire weather conditions – with strong winds and low humidity – will continue throughout California.
Until Tuesday, more than 3 "of rain could fall from the far east of Texas over the mid-Atlantic littoral states.This heavy rain will result in the risk of sudden floods .
While parts of the Rockies can see 10-15 "of snow, a 4-7" strip of snow is possible in the Texas Panhandle Sunday night until Monday. Heavy snowfall of 6 "+ will be possible in some of the highest elevations in the northeast from Monday to Friday.
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The danger of extreme fire in California continues – big snow panhandle in Texas: Weather report Praedictix Coporate: Sunday morning, November 11th, 2018
- Three major destructive forest fires continue to burn in California this morning.
- The camp fire in Butte County is the most destructive of California's history, burning more than 6,700 buildings. This fire burned 105,000 acres and is under control at 20%.
- The Woolsey fire burned 83,275 acres and is contained at 5%. This fire resulted in the evacuation of more than 265,000 people in Ventura and Los Angeles counties.
- The hill fire burned 4,531 acres in Ventura County and is contained at 65%.
- The strong winds of Santa Ana are returning today in southern California, causing extreme fire danger. This will continue until Tuesday. Strong winds are also likely to blow at least Monday in the northern California region. These winds, coupled with low moisture values, would allow all ongoing fires or new fires that ignite to spread quickly.
- We are also watching a winter storm that could bring parts of the Texas Panhandle on half a foot of snow. Many winter storm warnings and winter weather warnings are in effect, including Amarillo.
Many large forest fires in California. Several wildfires continue to burn in California, with three particularly serious fires: the campfire, the Woolsey fire and the hill fire.
Focus on the campfire. The Campfire in Butte County has now burned 105,000 acres and is under control at 20%. This fire is the most destructive in the history of California, with more than 6,700 structures having been destroyed by fire. Another 15,000 structures remain at risk from the fire. Unfortunately, this fire has also claimed the lives of at least 23 people, making it the third most deadly forest fire in California in history. Many evacuation and closure orders are still in effect. Increasing winds today – combined with low moisture values and dry fuel – will help maintain extreme fire behavior. This would include the rapid spread of fire. More information is available from:
Woolsey and the hill fires. The Woolsey fire burned 83,275 acres and is contained at 5%. This fire destroyed 177 structures and 57 000 others threatened. Although many evacuation orders remain in effect (with more than 265,000 evacuees), Ventura County reported that mandatory evacuations were lifted Saturday in pockets of Simi Valley, Long Canyon, Wood Ranch, Thousand Oaks, Bridal Path and Erbes Road.
The hill fire burned 4,531 acres and is 65% contained. While all areas of Camarillo Springs, the Channel Islands of California and Dos Vientos have repopulated on Saturday, the South Coast Zone and Point Mugu Naval Base remain under the evacuation regime.
For both fires, strong winds, as well as low moisture values and dry fuels, will have an impact on fire control efforts early in the week. Firefighters also struggle against steep terrain and limited access. More information is available from:
Danger of extreme fire today. Very strong winds will continue today in California, causing extreme fire danger in southern California. In southern California, wind gusts of up to 60 to 70 km / h are possible in the preferred areas, with some of the strongest winds possible in the morning. In Northern California, gusts of 30 to 50 km / h are possible. These winds, coupled with low moisture values, would allow all ongoing fires or new fires that ignite to spread quickly.
Danger of extreme fire Monday. The extreme danger of fire continues Monday in southern California with the current winds of Santa Ana. Once again, gusts of strong winds, associated with low humidity values, would allow fires to spread rapidly. The strongest winds are expected during the morning hours, as sustained winds of 20 to 40 mph are likely with stronger gusts.
Red flag warnings. Due to the incendiary threat of inclement weather in the area, many red flag warnings are in effect. In northern California, most of them are in effect today or Monday, and warnings continue until Tuesday in southern California.
Warnings of high wind. Wind gusts of up to 100 km / h in favorite areas, especially in the morning and early afternoon, strong wind warnings were issued across southern California up to 17 hours Tuesday.
Southern winter storm. We are also following a system that will bring heavy snow to parts of the southern plains from now until Monday. Due to the 4 to 7 inch snow potential, a winter storm warning was issued for Amarillo, Texas, from 6 pm tonight to Monday, Monday. Many winter weather warnings range from Wyoming to Colorado (including Denver), Kansas, Oklahoma, and New Mexico.
Potential snowfall. While the heaviest snow with this system (10-15 ") will fall on the higher terrain of the Rockies, a 7" strip of snow is expected in parts of the Texas Panhandle until noon Monday. This should have an impact on Monday morning travel across the region.
D.J. Kayser, Meteorologist, Praedictix
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Wildfire smoke invaded the Kings arena before Saturday night's game
More from Deadspin: "Smoke from the camp fire in Butte County, California – which killed 23 people since early Thursday morning – made its way into the Sacramento Kings arena before the team's match face the Lakers on Saturday night. The match was not delayed, but smoke was visible over the pitch before the end of the match and seemed to be bothering the players during the warm-ups. "You can feel it," LeBron James said before the game. "We did not really get any height [running] like that, to the point where you can say it affects you or not, but every time there is smoke, you know that it can affect us all. Not just us as athletes but everyone. Everyone is affected by pollution. ""
While California's wildfires rage, hundreds of teenagers discuss climate change in San Jose
More from Mercury News: "While the state's most devastating wildfires devastated northern and southern California on Saturday, hundreds of teenagers from the San Francisco Bay Area visited the Tech Museum of Innovation for a conference. inaugural event on climate change. The Tech for Global Good Youth Climate Action Summit, organized by 12 students from eight high schools in the Bay Area, presented a series of panels and activities with award-winning scientists and educators, ranging from an immersive experience of virtual reality at a breakout room on the theme of the rainforest. The conference was held just weeks after a historic UN report said rising global temperatures would have devastating consequences – drought, floods, extreme heat and poverty – if they are not mastered during the war. next 12 years. Several speakers on Saturday referred to the devastating Camp Fire fire in Butte County and the late Woolsey near Los Angeles, highlighting the need to find solutions to global warming. The solutions are based on the youth of the world, they said."
Flash floods increase as mercury rises
More from Climate News Network: "Scientists have once again confirmed that humanity's actions have resulted in ever-increasing extreme precipitation and an ever-increasing increase in catastrophic flash floods. The study comes close to the warning of UN scientists about a dramatic increase in economic losses from climate-related disasters. Between 1998 and 2017, natural disasters cost the nations of the world $ 2 900 billion. Although earthquakes and tsunamis caused most deaths, floods, storms and other climate-related disasters accounted for 77% of economic damage. Scientists and engineers from China and the United States have reported in Nature Communications that sudden floods now cause more deaths, as well as property and farmland than any other severe weather hazard. These losses have been rising for 50 years and, over the past decade, have exceeded $ 30 billion a year."
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Thank you for your arrival and have a nice Monday! Do not forget to follow me on Twitter (@dkayserwx) and like me on Facebook (meteorologist D.J Kayser)!
– D.J. Kayser
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The storm of the armistice of November 11, 1940
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