Saturday's September Sky
Wow! What a day Saturday, huh? Although it was a little on the chilly side, bright sunshine and comfortable dewpoints made for a wonderful early/mid September day. The cold front that pushed through PM Friday helped to scour out the higher levels of humidity. It appears that dewpoints will remain low on Sunday, but could approach 60F again on Monday ahead of another cold front that will drop temperatures even more on Tuesday and Wednesday.
Much of the region experienced sunshine on Saturday, however, note the fair weather cumulus clouds that developed across the state during the midday hours. These clouds formed in the cooler air in the wake of the cold front that moved through on Friday. Some of the clouds even produced a few light sprinkles!
How about this? This is from the National Weather Service in Fairbanks Alaska, where temperatures on Saturday morning dipped to frosty levels.
"Another frosty morning in Fairbanks and the Interior. Temperatures are in the 20s and 30s again. This may seem cold but frost is not uncommon in early September. #akwx #fairbanks"
Average First Frost in the Twin Cities
Here's a list of average dates of first minimum temps around the Twin Cities. Note that the average first frost (32F) for the Twin Cities is October 8th and the average first hard freeze (28F) in the Twin Cities is October 19th... In all reality, we are only about 1 month away from these dates!
Fall Colors Starting to Show...
Fall Color Update - MN DNR
This is always a fun map to drag out around this time of the year! According to the MN DNR, there are already a few locations that are at 10 - 25% color, mainly across central and northern Minnesota. Keep an eye out for gradually changing fall foliage over the next several weeks. It's interesting that when at/past peak occurs, the leaves seem to drop VERY rapidly, so don't blink!
Average Peak Color
According to the MN DNR, the typical peak color across the state is as advertised in the graphic below. Note that peak color is as early as mid-late September across the far northern part of the state to as late as early-mid October across the southern part of the state. The Twin Cities usually starts to peak around late September to mid October.
What Causes Fall Color?
Here's a neat article from the MN DNR on what causes fall color:
"Four main groups of biochemicals are responsible for the various yellows, oranges, reds and browns that we see in the fall:
Each has its own color and chemistry. As the amount of these chemicals vary, they will cause subtle variations in color from one leaf to the next, or even from tree to tree."
Mabel (Fillmore County) 5.54"
Caledonia (Houston County) 4.69"
Spring Valley (Fillmore County) 4.14"
Spring Grove (Houston County) 4.03"
Lanesboro (Fillmore County) 3.40"
Worthington (Nobles County) 2.86"
Wright (Carlton County) 3.93"
Brainerd (Crow Wing County) 2.90"
Ottertail (Otter Tail County) 2.52"
Eveleth (St Lous County) 3.20"
Pokegama Dam (Itasca County) 3.52"
Ada (Norman County) 2.97"
Roseau (Roseau County) 2.65"
Some of these thunderstorms produced new daily rainfall records for many observers. Some of these new record values included:
For September 5th: 1.03" at Amboy, 1.92" at Redwood Falls, 2.65" at Roseau, 1.41" at Floodwood, 2.02" at Argyle, 1.42" at Isabella, and 1.37" at Thief River Falls.
For September 6th: 2.78" at Pokegama Dam, 1.96" at Eveleth, and 0.89" at Grand Portage
For September 7th: 4.41" at Caledonia, 2.95" at Harmony, 3.35" at Spring Valley, 2.00" at Theilman, 1.47" at Grand Rapids, 1.27" at Zumbrota, 1.20" at Owatonna, 3.89" at Spring Grove, and 2.32" at Houston.
The12-day run of the Minnesota State Fair (August 25-September 5) set a new attendance record this year with 1,943,719.
Three dates brought record daily attendance: Friday, August 26; Friday, September 2nd; and Saturday, September 3rd (all-time daily attendance record set with 260,374). So what was the weather like and did it help promote this record attendance? Yes, likely.
Here is the daily attendance and associated weather description for each day of the State Fair
(* denotes record attendance for the day):
Thursday, August 25, 111,902, cooler than normal and breezy
Friday, August 26, 141,023*, cooler than normal, with low relative humidity
Saturday, August 27, 180,567, cloudy and humid day
Sunday, August 28, 177,906, warm and humid day, afternoon temperatures in the mid-80s F
Monday, August 29, 119,522, warm and humid with Heat Index near 90F, and rain at night
Tuesday, August 30, 126,354, early morning rain, cloudy
Wednesday, August 31, 118,042, near normal weather, partly cloudy
Thursday, September 1, 133,773, near normal weather
Friday, September 2, 182,926*, very sunny, with low relative humidity, pleasant temperatures
Saturday, September 3, 260,374*, sunny, breezy, and low relative humidity
Sunday, September 4, 233,303, cloudy and breezy
Monday, September 5, 158,027, early morning rain, very humid, warm and cloudy
Winds of change and coldest Since May 18th
"You don't need a weatherman to tell you which way the wind blows", but it sure would be nice, especially at this time of the year!
Those were the famous lyrics written by Bob Dylan who apparently wasn't too worried about Fall-like wardrobe choices. As cold fronts start making more frequent passes through the Upper Midwest over the coming weeks, the probability of going from shorts and t-shirts one day to pants and sweatshirts the next becomes increasingly higher. In fact, one of these fronts approaches Monday!
Sunshine and a warmer south wind will bring temperatures to near 80 degrees across southern Minnesota today, but temperatures drop into the 60s post-front Tuesday and Wednesday, which will be nearly 10- 15 degrees below average. Low temps Wednesday morning will dip below 50 degrees in the Twin Cities, which will be the first time since May 18th! That will end the second longest stretch of days we've stayed at 50 degrees or warmer since 1872. A few spots up north will likely dip into the 30s and perhaps even near the frosty mark!
Extended Weather Outlook
SATURDAY NIGHT: Mostly clear and cool. Winds: W 5. Low: 54
SUNDAY: Sunny, breezy and warmer. Winds: SSW 10-20. High: 78
SUNDAY NIGHT: Mostly clear and comfortable. Winds: S 10. Low: 60
MONDAY: Dry start, late day rumble possible. Winds: S to NW 5-10. High: 74
TUESDAY: More PM sun. Feels like early October. Winds: NNW 5-15. Wake-up: 56. High: 66
WEDNESDAY: Coldest start since May 18th. Sunny. Winds: SSW 5-10. Wake-up: 47. High: 67
THURSDAY: Spotty showers and storms later. Winds: S 10-15. Wake-up: 52. High: 71
FRIDAY: Mostly cloudy, scattered t-showers. Winds: SSW 5-10. Wake-up: 56. High: 72.
SATURDAY: AM puddles, gradual clearing. Winds: WNW 5-15. Wake-up: 57. High: 73.
This Day in Weather History
1980: 3.35 inches of rain fall in St. Cloud.
1942: A line of thunderstorms races across Minnesota at 70 mph, producing severe winds that would destroy 651 barns in a 30 mile wide, 180 mile long path.
1931: The daytime high in St. Cloud was 96 degrees.
1931: Summer still has its grip on Minnesota, with a high of 111 degrees at Beardsley.
1900: The soggy remains of the Galveston Hurricane bring 6.65 inches of rain to St. Paul over two days.
1807: Thick smoky weather is noted at Pembina.
Average High/Low for Minneapolis
Average High: 74F (Record: 96F set in 1931)
Average Low: 55F (Record: 35F set in 1962)
Sunrise/Sunset Times for Minneapolis
*Daylight Lost Since Yesterday: ~3mins & 4sec
*Daylight Lost Since Summer Solstice: ~2hours and 53mins
Moon Phase for September 11th at Midnight
2.8 Days Since First Quarter
Weather Outlook Sunday
An approaching cool front will allow temperatures to jump back into the upper 70s to near 80F across much of the Upper Midwest on Sunday. The breezy winds out of the WNW on Saturday will switch around to the south and help to drag milder and slightly more humid conditions. Even though, dewpoints will climb back into the low/mid 50s, it'll still be very comfortable on Sunday.
Weather Outlook Sunday
Winds ahead of the approaching cool front will be a little breezy, especially during the midday hours. SSW winds will range anywhere from 10-20mph with gusts up to 25mph across the southern part of the state. This will be a little warmer wind than what we experienced on Saturday.
Weather Outlook Sunday
The nice thing about Sunday is that we should have another day of wall to wall sunshine. Keep in mind that the sun is still fairly strong as the UV index is considered to be mod/high. That mean that it'll only take 45mins or less to burn exposed skin around midday.
The simulated radar from AM Saturday to PM Monday suggests that weather our wetter weather conditions on Friday will improve on Saturday and Sunday. Note that lingering showers seem to persist through early Saturday across parts of Wisconsin and northeastern MN, but most locations should remain dry for much of the weekend.
Here's the rainfall potential through midday Tuesday, which suggests mostly dry weather continuing on Sunday and early Monday, but a few spotty showers and storms may develop late Monday and bring a few areas light accumulations.
7 Day Rainfall Outlook
According to NOAA's WPC, the 7 day rainfall forecast suggests heavier rainfall potential again returning to the Upper Midwest on Thursday and Friday as another system slowly moves into the region with steadier showers/storms. Note that some of the rainfall could be appreciative with some spots nearing 0.50" to 1"+.
Extended Weather Outlook
The extended temperature outlook through mid September suggests near average conditions continuing throughout much of next week, however, note the 60s sprinkled in there through the middle part of next week! These days will feel more like late September/early October.
6 to 10 Day Temp Outlook
According to NOAA's CPC, the 6 to 10 day temperature outlook suggests above normal temperatures returning to the Upper Midwest from September 16th - September 20th. This will come after cooler than average temperatures settle into the region for a few days next week.
6 to 10 Day Temp Outlook
The national temperature outlook suggests that warmer than average temperatures will be found across much of the nation, while cooler than average temperatures will be found in the Southwest.
National Weather Outlook
A slow moving front responsible for scattered thunderstorms and heavy rain in the Central U.S. over the course of the week was also responsible for a few severe storms in the Eastern Great Lakes and the Ohio Valley on Saturday afternoon/evening. By Sunday, the front looks to lose steam stall over the Mid-Atlantic States and Gulf Coast states with a few scattered storms. Note that in the wake of the front, a big bubble of high pressure settles in over the Great Lakes and Ohio Valley, which will bring sunshine along with cooler and drier weather through early next week. The next front will already be pushing into the Lower 48 in the Upper Midwest. This is the next front that will bring a few showers and storms to the Central U.S. and then a fresh batch of even cooler air by the middle and end of the week.
According to NOAA's WPC, the 5 day forecast suggests heavy rains shifting south across the Gulf Coast States with some 1" to 3" tallies possible through the end of the week. The next front will help to produce some 1" to 2"+ tallies from the Southern Plains to the Gulf Coast States.
State pheasant index up 29 percent from last year!!
Here's a promising statistic from the MN DNR about Minnesota Pheasants. Although the recent pheasant index is still 14% below the 10-year average, this year is up 29% compared to last year!
"Another mild winter, good nesting season conditions and a slight increase in grassland habitat in the pheasant range all combined to increase Minnesota’s roadside pheasant index by 29 percent compared to last year, according to the Department of Natural Resources. “Grassland habitat is critically important to pheasant populations,” said Nicole Davros, a DNR research scientist who oversees the August roadside survey. “Over the past two years we have had weather that benefited pheasant numbers, but in the long term we’re still looking at a downward trend in habitat and that drives the population trends.” The 2016 pheasant index is still 14 percent below the 10-year average and 48 percent below the long-term average. Loss of Conservation Reserve Program (CRP) acres statewide remains a concern, as Minnesota may lose about 393,000 acres of CRP land by 2018 because of reduced spending on the program at the national level."
Camp Ripley Tornado
Thanks for checking in and have a great rest of your weekend and week ahead!
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