A mesoscale convective system developed overnight in South Dakota and traversed across Central Minnesota. The system continued into West Central Wisconsin, producing severe wind and hail.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS MPX wrote it up.
A mesoscale convective system developed overnight in South Dakota and traversed across Central Minnesota. The system continued into West Central Wisconsin, producing severe wind and hail.
The combination of large hail, strong winds and torrential rainfall, caused some crop damage, especially in Polk County where damage was extensive to their soybean crop.
A report stated that in St. Croix County in the village of North Hudson, there were sustained damages from straight line winds. Due to the damages, the village signed an emergency declaration for clean up. Six homes were evacuated due to a gas leak. There were other reports of minor or major damage to homes and businesses due to fallen trees, but no injuries were reported. | |A report indicated that in Chippewa County, hail was large enough in the Town of Auburn (near Bloomer) that it damaged a couple homes. One county road was blocked due to downed trees.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Twin Cities, MN wrote its last area forecast discussion before the first event at Jun 11, 5:16 AM CST, 2 hours 54 minutes earlier.
Area Forecast Discussion National Weather Service Twin Cities/Chanhassen MN 616 AM CDT Sun Jun 11 2017 .SHORT TERM...(Today and tonight) Issued at 430 AM CDT Sun Jun 11 2017 Long advertised severe weather was developing this morning on schedule, maybe even an hour or so early compared to high-res models from earlier tonight. Individual storms in central and east central South Dakota do seem to be evolving into a wind complex, with an eastward extension of new storms into southwest MN along a zone of warm advection. Some of these will likely produce large hail in southwest MN and eventually central and south central MN, prior to the arrival of the developing bow and possible comma head. High-res models do take the complex slightly farther north than before, and have edged the higher pops a wee bit northward. Timing of storms suggests they'll be into Wisconsin before Noon, so current Severe Thunderstorm watch will likely be extended eastward by 7 am. Damaging wind will continue to be the main threat, though some large hail will also occur. Main question is what happens to the atmosphere in the wake of the morning storms. It will certainly take much of the day for that area over which the storms traverse this morning. Models do disagree on extent of redevelopment. The RAP seems to be the most bullish, bringing storms southeastward from northern MN and then developing more storms from southwest MN into east central MN, as low level lapse rates recover. This seems overdone as the morning storms are rather hefty and should stabilize the airmass pretty well. But with so much precipitable water just to the south and southwest in an area unaffected by storms, and another sort wave, it may be possible for redevelopment late afternoon. So it's not automatic that the morning activity will quash late afternoon storms. Having said that, the one area that seems most likely to see development mid- late afternoon will be a little south of the metro into Wisconsin. This will be an area that may not be worked over too much this morning, and the low level jet does look to persist through the day and shift eastward toward southeast MN by late afternoon. Warm front will also be in the area, so any storms that do develop will have a favorable environment for a tornado or two. The SPC tornado graphic looks on target. After storms exit this evening, some showers will still linger from southern MN into WI. .LONG TERM...(Monday through Saturday) Issued at 430 AM CDT Sun Jun 11 2017 Hot and humid air remain in place as southwest mid level flow persists ahead of the closed low to the west. The quasi- stationary boundary lifts north from IA as a warm front on Monday into Tuesday, and then the associated cold front passes across the area on Wednesday. Periods of showers and thunderstorms (possibly strong-severe) are possible as these transitions occur. The threat for severe storms appears the highest on Tuesday as the mid-level low ejects out of the Intermountain west and interacts with the boundary. Temperatures will climb into the 90s south of the front (generally along & south of I-94). With dewpoints well into the upper 60s, heat indices in the 95 to 100 degree range appear possible. Thankfully, breezy southerly winds will lessen how hot it feels slightly. Precipitable water values will be in the 2+ inch range again on Tuesday, which illustrates we will still have plenty of boundary layer moisture in place. With decent deep layer shear and increasing low level shear, supercells will be possible, with all types of severe weather threats including tornadoes. Heavy rainfall will be a given with stronger/organized storms. In the wake of the system temperatures return back closer to (but still around 5 degrees above) seasonal normals. Dewpoints lower into the 50s which will provide some relief from the recent humid conditions. && .AVIATION...(For the 12Z TAFS through 12Z Monday morning) Issued at 616 AM CDT Sun Jun 11 2017 line of thunderstorms moving into southwest MN with others developing ahead of the line. Line is evolving into a bow echo and there are signs of a comma head at the north end of the line. All this spells strong wind with the storms as they move east and northeast. Will have to wait to see if non-thunderstorm winds develop in the wake of the storm complex; it's too soon to know that, but is something to be aware of. Storms should reach western WI around Noon. It's uncertain to what extent any storms redevelop later this afternoon in the wake of the morning storms. KMSP...The storms with the strong wind look to arrive around 15Z, with about 1/2 hour leeway before/after. A few other storms might develop before then, but the concern for the wind will be with the storms now in sw MN. Will also need to watch for any non- thunderstorm winds in the wake of the morning storms, but this is highly uncertain. Also uncertain is redevelopment late afternoon. /OUTLOOK FOR KMSP/ Mon...VFR/MVFR with TSRA possible. Wind SE at 10kt. Tue...VFR/MVFR with TSRA likely late. WInd S at 10-15kt. Wed...VFR/MVFR with TSRA possible. Wind SE 5-10kt becoming SW. && .MPX WATCHES/WARNINGS/ADVISORIES... WI...None. MN...None. && SHORT TERM...TDK LONG TERM...LS AVIATION...TDK
Hazardous Weather Outlook National Weather Service Twin Cities/Chanhassen MN 424 AM CDT Sun Jun 11 2017 MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028- 120930- Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns- Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa- Kandiyohi-Meeker-Wright-Hennepin-Anoka-Ramsey-Washington- Yellow Medicine-Renville-McLeod-Sibley-Carver-Scott-Dakota- Redwood-Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth- Waseca-Steele-Martin-Faribault-Freeborn-Polk-Barron-Rusk- St. Croix-Pierce-Dunn-Pepin-Eau Claire- 424 AM CDT Sun Jun 11 2017 This Hazardous Weather Outlook is for portions of central and southern Minnesota...and west central Wisconsin. .DAY ONE...Today and Tonight A line of severe thunderstorms over South Dakota will quickly race eastward across the area this morning into early afternoon. Widespread damaging winds and large hail are possible. Heavy rainfall could lead to ponding of water on roads, especially in urban areas. Redevelopment of thunderstorms is also possible this afternoon. A few of the afternoon storms may also be severe with damaging winds, large hail, and heavy rainfall. .DAYS TWO THROUGH SEVEN...Monday through Saturday Chances for thunderstorms continue Monday into Wednesday with the severe weather looking the most possible on Tuesday afternoon and Tuesday night. Peak heat indices in the mid to upper 90s are also expected on Tuesday. .SPOTTER INFORMATION STATEMENT... SKYWARN spotter activation will likely be needed this morning, and possibly again during the afternoon.
Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
900 AM CDT SUN JUN 11 2017
MNZ069-070-076>078-083>085-WIZ024-111500-
Steele-Le Sueur-Waseca-Dakota-Blue Earth-Rice-Goodhue-Scott-Pierce-
900 AM CDT SUN JUN 11 2017
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT SOUTHERN DAKOTA...
EASTERN LE SUEUR...NORTHERN STEELE...SOUTHEASTERN SCOTT...GOODHUE...
NORTHEASTERN BLUE EARTH...NORTHERN WASECA...RICE AND SOUTH CENTRAL
PIERCE COUNTIES...
At 900 AM CDT, radar indicated strong thunderstorms were located
along a line extending from near Elko New Market to near St. Clair.
Movement was east at 50 mph.
Wind gusts of 50 to 55 mph and nickel size hail are possible with
these storms.
Locations impacted include...
Mankato, Faribault, Northfield, Red Wing, New Prague, Cannon Falls,
Lonsdale, Zumbrota, Montgomery and Janesville.
These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
To report severe weather, contact your nearest law enforcement
agency. They can relay your report to the National Weather Service
office in The Twin Cities.
LAT...LON 4408 9400 4460 9353 4464 9243 4420 9272
4419 9304 4416 9305
TIME...MOT...LOC 1400Z 272DEG 45KT 4459 9327 4407 9397
JLTPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
901 AM CDT SUN JUN 11 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0837 AM TSTM WND DMG 2 S SHAKOPEE 44.77N 93.53W
06/11/2017 SCOTT MN TRAINED SPOTTER
8 INCH LIMBS DOWN.
&&
CARLYONPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
902 AM CDT SUN JUN 11 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0855 AM HAIL 1 S LITTLE CANADA 45.01N 93.09W
06/11/2017 M1.00 INCH RAMSEY MN AMATEUR RADIO
&&
CARLYONPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
907 AM CDT SUN JUN 11 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0838 AM TSTM WND DMG 2 N ST. BONIFACIUS 44.94N 93.75W
06/11/2017 HENNEPIN MN AMATEUR RADIO
20 INCH DIAMETER TREE DOWN,.
&&
CARLYONPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
908 AM CDT SUN JUN 11 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0900 AM HAIL 4 N CIRCLE PINES 45.20N 93.14W
06/11/2017 M1.50 INCH ANOKA MN TRAINED SPOTTER
&&
CARLYONPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
910 AM CDT SUN JUN 11 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0811 AM TSTM WND GST 3 S LITCHFIELD 45.07N 94.53W
06/11/2017 M80 MPH MEEKER MN MESONET
MESONET STATION LFSM5, LITCHFIELD 3S.
&&
CARLYONThe Minneapolis radar (KMPX), 66 km away, was scanning. The volume nearest the first event began at 14:09 UTC.
17 hail, 13 thunderstorm wind. Local standard time, as filed.
Several trees were blown down or uprooted.
There were multiple reports of downed trees, power lines and vehicles blown off the road across portions of southern and central Polk County. This includes the towns of Osceola, Amery, Alden, Farmington, St. Croix Falls, Garfield, Clam Falls, Johnstown, Lincoln and Milltown.
Report submitted via social media.
There were numerous reports that large hail, up to quarter size, fell north of Highway 170, and also along Highway 25 and Highway FF.
A few medium sized trees were downed and a greenhouse was blown over.
Several trees were blown down in the Township of Sand Creek. An irrigation system also tipped over near Sand Creek.
Numerous small to large trees were downed.
Several structures had vinyl siding damaged by large hail on Highway DD south of Highway 64 in Auburn Township. In addition, there were several large tree branches blown across Highway SS, near 87th Street, north of the city of Bloomer.
A large oak tree was down, blocking County Road SS.
A tree was blown down.
A few 6 to 8 inch diameter trees were blown down.
The Chetek Police Department confirmed a storm-related fatality, as a 46-year-old was killed while cutting down storm damage and the debris rolled over the individual. This was an indirect fatality.
Large trees and branches were blown down.
Numerous trees of various sizes were blown down. Also, a car was blown off the road.
Trees were blown down.
As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.
| Event | Date | Age | Sex | Where | Kind |
|---|---|---|---|---|---|
| Thunderstorm Wind, Barron | 2017-06-11 | 46 | Male | Outside/Open Areas | Indirect |
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wisconsin in 2017Every state in 2017This day in weather historyWarnings in Wisconsin, June 2017
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 699061, 705709, 699049, 699055, 699077, 699050, 699051, 699052, 699053, 706329, 699054, 699073, 706336, 699064, 699063, 699078, 699066, 699048, 705710, 706335, 699085, 706337, 699076, 699081, 699084, 699079, 709697, 699082, 699086, 699088.