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News and Information

Minnesota WeatherTalk Newsletter for Friday, June 27, 2014

To: MPR's Morning Edition
From: Mark Seeley, University of Minnesota, Dept of Soil, Water, and Climate
Subject: Minnesota WeatherTalk Newsletter for Friday, June 27, 2014


HEADLINES

-Preliminary June Climate Summary
-Weekly Weather potpourri
-MPR listener question
-Almanac for June 27th
-Past weather
-Outlook

Topic: Preliminary June Climate Summary

Most observers report a mean monthly June temperature that is close to normal. Extremes for the month ranged from 90 degrees F at Marshall on the 20th and Madison on the 21st to just 30 degrees F at Crane Lake on the 13th.

Though June temperatures around the state were near normal, rainfall was far from it, in fact record-setting for many communities. On a statewide basis the average rainfall for June so far has been about 7.29 inches, just behind the all-time wettest June of 1914 when the statewide average was 7.32 inches, a record likely to be broken by next Monday. Flooding has been widespread on many Minnesota watersheds as a result of the heavy rains.

Many observers reported measurable rainfall on over half of the days during the month of June, and several reported record-setting daily values including: Luverne with 3.39 inches on the 1st and 3.57 inches on the 15th; Redwood Falls with 3.41 inches on the 1st and 5.10 inches on the 19th; Gaylord with 4.87 inches on the 19th and 2.92 inches on the 20th; Lake Wilson with 5.20 inches on the 15th; Redwing with 4.41 inches on the 15th; Rushford with 2.95 inches on the 26th; and MSP with 4.13 inches on the 19th (largest June daily rainfall in history).

Those already setting records for the wettest June include:
Ada 8.56 inches
Littefork 9.14 inches
International Falls 9.93 inches
Kabetogama 10.46 inches
Dawson 8.27 inches
Chaska 13.22 inches
Glencoe 14.15 inches
Lakefield 10.92 inches
Luverne 13.44 inches
Redwood Falls 14.22 inches
Springfield 10.88 inches
Waseca 12.31 inches

The acknowledged statewide June rainfall record from the Cooperative Observer network in Minnesota is 15.63 inches at Delano in 2002. This may be threatened or broken by month's end next Monday. MSP with climate records all the way back to 1871 shows 10.85 inches of rain for June so far, trailing only 11.67 inches in 1874. This record too may be broken by next Monday.

Peak wind speeds on the 15th and 16th exceeded 50 mph in many places, causing some tree damage.

Final June climate summaries will be available on our web site early next week.

http://www.climate.umn.edu/

Weekly Weather potpourri:

Dennis Todey, South Dakota State Climatologist reported this week that the Canton, SD cooperative observer just south of Sioux Falls reports 18.75 inches of rainfall so far in June, a new statewide record for the month, breaking the old record by more than 2.5 inches.

In the Southern Hemisphere, where it is winter, portions of New South Wales and Victoria in Australia were blanketed by the season's first heavy snowfall this week, up to 20 inches reported by some observers. Ski resorts opened for business, but strong winds contributed to travel difficulties and power outages in some areas. Winds over 60 mph were also reported, producing blizzard conditions in some areas.

On Tuesday, June 24th Environment Canada reported the 6th tornado of the season in Ontario Province. The storm was classified as an EF1 (winds 86-110 mph) and was on the ground for about 4 miles near Laurel Station. About 17 tornadoes are reported each year across the Provinces of Ontario and Quebec.

A report released by NASA this week revealed the air pollution over major US cities has been improving in recent years, at least as measured by the sensors aboard the Aqua satellite system. There has been a reduction in nitrogen dioxide in many areas. You can read more about this report at...

http://www.sciencedaily.com/releases/2014/06/140626115946.htm

MPR listener question: I have your "Minnesota Weather Almanac" as a reference for all the state daily climate records. I note that maximum daily rainfalls exceeding 10 inches have occurred around the state in July and August, but not in June. Didn't the great June flash flood in Duluth, Cloquet, and Two Harbors bring a daily rainfall of 10 inches back in 2012?

Answer: Indeed you are correct. The observer at Two Harbors reported 10.45 inches on June 20, 2012, setting a new statewide record for daily rainfall in June. Also Two Harbors reported their wettest June in history back to 1894 with a total of 13.86 inches in June of 2012.

Twin Cities Almanac for June 27th:

The average MSP high temperature for this date is 81 degrees F (plus or minus 8 degrees F standard deviation), while the average low is 61 degrees F (plus or minus 7 degrees F standard deviation).

MSP Local Records for June 27th:

MSP weather records for this date include: highest daily maximum temperature of 104 degrees F in 1934; lowest daily maximum temperature of 61 degrees F in 1888 and 1911; lowest daily minimum temperature is 44 degrees F in 1925; highest daily minimum temperature of 79 F in 1933; record precipitation of 2.00 inches in 1953; and there has been no snow on this date.

Average dew point for June 27th is 59 degrees F, with a maximum of 76 degrees F in 1959 and a minimum of 36 degrees F in 1925.

All-time state records for June 27th

The state record high temperature for this date is 108 degrees F at New London (Kandiyohi County) in 1934. The state record low temperature for this date is 29 degrees F at Sawbill Camp (Cook County) in 1940. State record precipitation for this date is 6.46 inches at Zumbrota (Goodhue County) in 1998; and no measurable snowfall has occurred on this date.

Past Weather Features:

June 27, 1894 brought the largest outbreak of tornadoes of the 19th Century in Minnesota. Between 5:00 pm and 9:00 pm at least 12 different tornadoes formed and moved southwestern and central Minnesota. The most long lived tornado was on the ground for 30 miles across Meeker and Stearns Counties, destroying dozens of farms and killing two people. One of the last tornadoes of the day passed across Lake Harriet in Minneapolis where some homes were destroyed.

Probably the coldest June 27th in state history was in 1925 when a cool and dry Canadian air mass settled over the state, dropping overnight lows into the 30s F, even at Beardsley, normally one of the hottest places in the state. Several communities reported frosts including, Cloquet, Pine River Dam, Meadowlands, Grand Rapids, and Warroad.

The hottest June 27th in state history occurred in 1934 when over 20 communities reported a daytime high of 100 degrees F or higher. A temperature of 90 degrees F was reported at Leech Lake, but over on the north shore of Lake Superior the high at Two Harbors only reached 60 degrees F.

June 26-27, 1998 brought severe weather to many parts of Minnesota. There were widespread reports of damaging winds (50-70 mph) and large hail (up to 1.75 inch diameter), especially in southeastern counties. Tornadoes were reported in seven counties and flash flooding occurred in a number of communities, particularly Jordan where over 6 inches of rain provoked historic flooding on Sandy Creek.

Outlook:

Mostly cloudy, warmer than normal temperatures into the weekend with a chance for showers and thunderstorms each day. Late Sunday may bring some strong thunderstorms to the state. Continued chance for showers on Monday, but with cooler temperatures. Drier by the middle of next week, with cooler than normal temperature going into the July 4th holiday on Friday.

Further Information:

For older versions of the "Minnesota WeatherTalk" newsletter go to

http://www.climate.umn.edu/weathertalk/

For access to other information resources go to

http://www.climate.umn.edu/Seeley/

NOTE: News releases were current as of the date of issue. If you have a question on older releases, use the news release search (upper left-hand column of the News main page) or the main Extension search (upper right of this page) to locate more recent information.

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