Minnesota, 2021Tornadoes and Hail in Minnesota, December 15, 2021
December 15, 2021 · NWS ARX · 82 events in 7 counties and zones
An intense storm system moved across the Upper Midwest on December 15th and produced a rare severe weather outbreak across southeast Minnesota. One person was killed near Rochester (Olmsted County) when a large tree fell on the victim.
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
Open the live radar over this ground
- Deaths
- 1
- Injuries
- 0
- Property damage
- $2.9 million
- Crop damage
- None recorded
- Events
- 82
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.
An intense storm system moved across the Upper Midwest on December 15th and produced a rare severe weather outbreak across southeast Minnesota. One person was killed near Rochester (Olmsted County) when a large tree fell on the victim. Twelve tornadoes occurred across parts of Mower, Fillmore, Houston, Dodge, Winona and Wabasha Counties. Eight of these tornadoes were rated EF1 with the others rated EF0. The tornadoes largely moved through rural areas damaging trees, power lines and farm buildings with the exception of an EF0 tornado that moved through the eastern sections of Preston (Fillmore County) and and EF1 tornado that tracked across Homer (Winona County). In addition to the tornadoes, damaging winds occurred with several reports of wind speeds over 70 mph. The highest recorded wind gusts were 85 mph in Plainview (Wabasha County), 84 mph in Harmony (Fillmore County) and Mabel (Fillmore County) and 83 mph south of Grand Meadow (Mower County). A state of emergency was declared in Fillmore County. The Governor of Minnesota authorized emergency assistance for the following counties: Dodge, Fillmore, Houston, Mower, Olmsted and Wabasha.
What forecasters said that day
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 La Crosse, WI wrote its last area forecast discussion before the first event at Dec 15, 4:45 PM CST, 2 hours 26 minutes earlier.
Area forecast discussion, Dec 15, 4:45 PM CST, 2 hours 26 minutes before
Area Forecast Discussion
National Weather Service La Crosse WI
445 PM CST Wed Dec 15 2021
.SHORT TERM...(This evening through Thursday)
Issued at 220 PM CST Wed Dec 15 2021
...Very Rare, dangerous December severe weather risk/high winds
this evening and tonight...
Not much change in thinking regarding the storm/wind threats this
evening and overnight. Improvement in dense fog slowly continues
early this afternoon north of I-94 as a warm front lifts north,
but fog could linger through the afternoon across north-central
WI. South of the front, temps quickly climb into the 50s and 60s
to even near 70 in spots, record values for many, along with dew
points in the 50s to low 60s. In addition, southerly winds have
increased to 15 to 25 mph with gusts of 30 to 40 mph in the warm
sector. Despite impressive wind fields aloft, wind gusts in the
warm sector will be tempered a bit with the strong elevated warm
nose/modest vertical mixing in the warm advective regime.
An intense, compact, negatively-tilted shortwave trough evident
across the central plains early this afternoon will race northeast
to near Lake Superior by early Thursday morning with the
associated surface low deepening to near 976 mb. Very strong
warm/moist advection will occur ahead of the associated cold front
with extremely strong, anomalous wind fields. A cyclonically
curved 100+ kt jet streak will lift across the region this evening
with 850 mb flow increasing to 70 to 80 kts. As has been
reiterated in recent days, the moisture/wind field anomalies with
this system are remarkably anomalous, in some cases outside of the
model climatology.
A strongly forced, low-topped linear band of convection will
develop to the southwest this evening, encroaching on the area by
6-7 pm, and then quickly racing across the region through around
11 pm. Low- level shear will be very strong, with around 50 kts of
0-1 km bulk shear. While still on the modest side, forecast
instability values have crept up over the past day, with SBCAPE
expected to reach 500- 750 J/kg, and HREF ensemble max values up
to 1000 J/kg. There remains a significant, higher end, wind threat
with these storms, given the storm motions over 60 to 70 mph and
very strong winds aloft. Wind gusts in excess of 80 mph are
possible with the strongest storms, while any storms could produce
gusts of 60 to 70+ mph. In addition, given the very strong low-
level shear, fast-moving tornadoes could occur, and potentially a
strong tornado (especially west of the MS) given the impressive
dynamics/wind fields with the system. Certainly a very rare
environment for mid-December.
Behind the front, very strong non-convective wind gusts will
overspread the region as lapse rates steepen with a push of cold
advection and strong pressure rises. Based on winds at the top of
the mixed layer, gusts up to around 65 mph are expected. The
intense winds will occur over a several hour period through the
early morning hours, gradually dropping off towards sunrise.
Although not unseasonably cool, much colder temps in the 20s and
30s are expected late tonight and Thursday behind the front,
possibly leading to slick spots on roads that may be wet. There is
some signal for freezing drizzle across north-central WI late
tonight, although confidence isn't high. Otherwise, winds will
gust up to 30 to 40+ mph well into Thursday.
.LONG TERM...(Thursday night through Wednesday)
Issued at 220 PM CST Wed Dec 15 2021
The next chance for some precipitation looks to arrive Friday
night and possibly linger into Saturday. A northern stream short
wave trough will drop out of Canada and move across the Upper
Midwest. While the models are all showing this wave, there are
quite a few differences on the strength and track of the wave. As
of now, it would appear the best forcing should pass by to the
north of the area with giving just some small chance for light
snow generally north of Interstate 90. After that, upper level
ridging will build in for the weekend and then transition into a
zonal flow. The next short wave trough in this pattern looks to
move by well to the north of the region across southern Canada.
This system should push a cold front through early next week, but
at this time, it looks to come through dry.
&&
.AVIATION...(For the 00Z TAFS through 00Z Thursday night)
Issued at 445 PM CST Wed Dec 15 2021
Dangerous storm moving through tonight with wind, storms and some
cig impacts.
Cigs: brief drop in cigs with line of storms early this evening,
then scattered for a few hours and then back into MVFR for the night
through Thu morning. Should see a scattering of the deck by mid
afternoon.
WX/vsby: strong/severe line of storms will drive across the TAF
sites early this evening (01-03z)...likely only impacting for 1/2
hour or less. Some vsby restrictions with heavy rain. With passage
of cold front later tonight not expecting fog.
Winds: very strong tonight into Thu morning with strongest gusts
tonight upwards of 50 kts from the south/southwest. With the
thunderstorms (01-03z) winds will be a bit more southwest and could
gust closer to 70 kts. Passage of the storm's cold front
overnight/early Thu morning will swing winds to more westerly with a
gradual decrease through the day.
&&
.ARX WATCHES/WARNINGS/ADVISORIES...
WI...High Wind Warning until 6 AM CST Thursday for WIZ017-029-032>034-
041>044-053>055-061.
Dense Fog Advisory until 6 PM CST this evening for WIZ017-029.
MN...High Wind Warning until 6 AM CST Thursday for MNZ079-086>088-
094>096.
IA...High Wind Warning until 6 AM CST Thursday for IAZ008>011-018-019-
029-030.
&&
SHORT TERM...JM
LONG TERM...04
AVIATION...RieckHazardous weather outlook, Dec 15, 2:06 PM CST, 5 hours 5 minutes before
Hazardous Weather Outlook
National Weather Service La Crosse WI
206 PM CST Wed Dec 15 2021
IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029-
032>034-041>044-053>055-061-161200-
Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette-
Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston-
Taylor-Clark-Buffalo-Trempealeau-Jackson-La Crosse-Monroe-Juneau-
Adams-Vernon-Crawford-Richland-Grant-
206 PM CST Wed Dec 15 2021
This Hazardous Weather Outlook is for portions of southeast
Minnesota...northeast Iowa and southwest into central Wisconsin.
.DAY ONE...This Afternoon and Tonight
A line of thunderstorms will race across the area between 6 PM
and 11 PM. These storms will move east/northeast at 60 to 70 mph
and will be capable of producing damaging wind gusts of 70 mph
and
isolated gusts of 80 mph or higher. Tornadoes will also be
possible, particularly near and west of the Mississippi River.
There is the potential for a strong tornado to occur.
A High Wind Warning is in effect tonight. Dangerously strong wind
gusts to 65 mph are expected which could result in tree and power
line damage, leading to power outages.
Plummeting temperatures overnight could result in a flash freeze,
leading to some icy roads and sidewalks.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday
Wind gusts to 45 mph are possible early Thursday.
.SPOTTER INFORMATION STATEMENT...
Any damage reports or wind gust observations would be
appreciated.
.EMERGENCY MANAGEMENT COORDINATION...
No webinar is scheduled.
04
In the hours before
Local storm report, Dec 15, 7:11 PM CST, 0 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
711 PM CST WED DEC 15 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0709 PM HAIL CHARLES CITY 43.06N 92.67W
12/15/2021 E1.00 INCH FLOYD IA FIRE DEPT/RESCUE
NICKEL TO QUARTER SIZED HAIL REPORTED.
&&
JAREvent by event
68 thunderstorm wind, 12 tornado, 1 funnel cloud, 1 hail. Local standard time, as filed.
Tornado, Mower
- When
- December 15, 7:11 PM CST to 7:12 PM CST
- Where
- Mower County, 4.09 mi WNW of Lyle to 3.81 mi WNW of Lyle
- Rating
- EF0
- Path length
- 0.67 mi
- Path width
- 50 yd
- Property damage
- $15,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.514, -93.049
This tornado originally developed in Worth County, Iowa, moved into Freeborn County, Minnesota before crossing into Mower County west of Lyle. The tornado was only on the ground for about one minute in Mower County as it moved northeast and dissipated. One farm was damaged by the tornado, otherwise, damage was limited to trees.
Thunderstorm Wind, Mower
- When
- December 15, 7:17 PM CST
- Where
- Mower County, 3.65 mi SW of Varco
- Measured
- 56 kt (64 mph) estimated gust
- Property damage
- $15,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.590, -93.040
The roof of a house was damaged and trees were snapped off southwest of Austin.
Thunderstorm Wind, Mower
- When
- December 15, 7:17 PM CST
- Where
- Mower County, 2.56 mi SW of Varco
- Measured
- 56 kt (64 mph) estimated gust
- Property damage
- $5,000
- Reported by
- Newspaper
- Coordinates
- 43.590, -93.010
Large trees were snapped off in a cemetery southwest of Austin.
Thunderstorm Wind, Mower
- When
- December 15, 7:17 PM CST
- Where
- Mower County, 2.43 mi SW of Varco
- Measured
- 56 kt (64 mph) estimated gust
- Property damage
- $7,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.600, -93.020
The roof to a house sustained some damage and trees were blown down southwest of Austin.
Thunderstorm Wind, Mower
- When
- December 15, 7:18 PM CST
- Where
- Mower County, 1.65 mi WSW of Varco
- Measured
- 56 kt (64 mph) estimated gust
- Property damage
- $2,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.610, -93.010
Trees were blown down southwest of Austin.
Thunderstorm Wind, Mower
- When
- December 15, 7:22 PM CST
- Where
- Mower County, Austin
- Measured
- 52 kt (60 mph) measured gust
- Property damage
- $50,000
- Reported by
- AWOS
- Coordinates
- 43.670, -92.930
The automated weather observing equipment at the Austin airport measured a wind gust of 60 mph. The winds blew down trees and power lines throughout Austin causing the entire city to lose power.
Thunderstorm Wind, Mower
- When
- December 15, 7:27 PM CST
- Where
- Mower County, 0.85 mi SE of Adams
- Measured
- 51 kt (59 mph) estimated gust
- Property damage
- $15,000
- Reported by
- Public
- Coordinates
- 43.560, -92.720
Wind damage occurred to a barn and outbuilding near Adams.
Thunderstorm Wind, Mower
- When
- December 15, 7:28 PM CST
- Where
- Mower County, 1.22 mi SE of Le Roy
- Measured
- 52 kt (60 mph) estimated gust
- Property damage
- $50,000
- Reported by
- Broadcast Media
- Coordinates
- 43.510, -92.500
A barn was destroyed near Le Roy.
Thunderstorm Wind, Mower
- When
- December 15, 7:29 PM CST
- Where
- Mower County, 0.85 mi SW of Le Roy
- Measured
- 51 kt (59 mph) estimated gust
- Reported by
- Amateur Radio
- Coordinates
- 43.510, -92.530
An estimated 59 mph wind just occurred near Le Roy.
Thunderstorm Wind, Mower
- When
- December 15, 7:29 PM CST
- Where
- Mower County, 0.85 mi SE of Elkton
- Measured
- 69 kt (79 mph) estimated gust
- Reported by
- Broadcast Media
- Coordinates
- 43.660, -92.710
An estimated 79 mph wind gust occurred in Elkton.
Thunderstorm Wind, Mower
- When
- December 15, 7:32 PM CST
- Where
- Mower County, 2.11 mi ENE of Dexter
- Measured
- 63 kt (72 mph) measured gust
- Reported by
- Mesonet
- Coordinates
- 43.730, -92.680
A 73 mph wind gust was measured by a mesonet sensor just northeast of Dexter.
Thunderstorm Wind, Dodge
- When
- December 15, 7:32 PM CST
- Where
- Dodge County, 0.5 mi W of Dodge Center Arpt
- Measured
- 50 kt (58 mph) measured gust
- Reported by
- AWOS
- Coordinates
- 44.020, -92.840
The automated weather observing equipment at the Dodge Center airport measured a 58 mph wind gust.
Thunderstorm Wind, Mower
- When
- December 15, 7:33 PM CST
- Where
- Mower County, 2.81 mi S of Grand Meadow
- Measured
- 72 kt (83 mph) measured gust
- Reported by
- Trained Spotter
- Coordinates
- 43.660, -92.570
An 83 mph wind gust was measured south of Grand Meadow.
Thunderstorm Wind, Mower
- When
- December 15, 7:34 PM CST to 7:36 PM CST
- Where
- Mower County, 3.76 mi ESE of Grand Meadow to 4.55 mi E of Grand Meadow
- Measured
- 56 kt (64 mph) estimated gust
- Property damage
- $80,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.680, -92.510
One side of a roof was blown off a large commercial building and trees were blown down in a path of wind damage southeast of Grand Meadow.
Tornado, Mower
- When
- December 15, 7:37 PM CST to 7:40 PM CST
- Where
- Mower County, 2.76 mi SSE of Racine to 1.98 mi ENE of Racine
- Rating
- EF1
- Path length
- 3.32 mi
- Path width
- 85 yd
- Property damage
- $210,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.742, -92.484
This was the second tornado of the night across Mower County. This EF1 tornado formed south of Racine, moved northeast just missing the town and then dissipated northeast of Racine. This tornado lifted the roof off a home and destroyed some farm buildings.
Thunderstorm Wind, Fillmore
- When
- December 15, 7:38 PM CST
- Where
- Fillmore County, 0.85 mi NE of Spring Vly
- Measured
- 53 kt (61 mph) estimated gust
- Property damage
- $10,000
- Reported by
- Amateur Radio
- Coordinates
- 43.690, -92.390
Widespread power outages occurred in Spring Valley from downed power lines.
Thunderstorm Wind, Mower
- When
- December 15, 7:38 PM CST
- Where
- Mower County, 2.94 mi SSW of Racine
- Measured
- 57 kt (66 mph) estimated gust
- Property damage
- $15,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.740, -92.520
Farm outbuildings were damaged northeast of Grand Meadow.
Thunderstorm Wind, Dodge
- When
- December 15, 7:39 PM CST
- Where
- Dodge County, 3 mi S of Claremont
- Measured
- 43 kt (49 mph) estimated gust
- Property damage
- $3,000
- Reported by
- Emergency Manager
- Coordinates
- 44.007, -93.000
Road signs were damaged south of Claremont by strong winds.
Thunderstorm Wind, Dodge
- When
- December 15, 7:40 PM CST
- Where
- Dodge County, 2.07 mi S of Kasson
- Measured
- 52 kt (60 mph) estimated gust
- Property damage
- $50,000
- Reported by
- Public
- Coordinates
- 44.000, -92.750
Part of the roof was blown off a large livestock building south of Kasson.
Thunderstorm Wind, Mower
- When
- December 15, 7:40 PM CST
- Where
- Mower County, 1 mi E of Racine
- Measured
- 51 kt (59 mph) estimated gust
- Property damage
- $30,000
- Reported by
- Newspaper
- Coordinates
- 43.780, -92.480
A metal pole shed was destroyed, trees were uprooted and large branches blown down in Racine.
Thunderstorm Wind, Fillmore
- When
- December 15, 7:40 PM CST to 7:44 PM CST
- Where
- Fillmore County, 2.13 mi SSE of Bristol to 2.86 mi ENE of Bristol
- Measured
- 57 kt (66 mph) estimated gust
- Property damage
- $90,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.520, -92.170
A path of wind damage was found near Bristol. An open air farm outbuilding was destroyed, the roof ripped off a large barn, trees and wooded electrical poles were snapped.
Thunderstorm Wind, Fillmore
- When
- December 15, 7:40 PM CST
- Where
- Fillmore County, 1.9 mi WNW of Granger
- Measured
- 57 kt (66 mph) estimated gust
- Property damage
- $50,000
- Reported by
- Newspaper
- Coordinates
- 43.506, -92.137
An open air, metal outbuilding was destroyed north of Granger.
Tornado, Fillmore
- When
- December 15, 7:42 PM CST to 7:46 PM CST
- Where
- Fillmore County, 1.09 mi WNW of Washington to 4.66 mi NNE of Washington
- Rating
- EF0
- Path length
- 4.6 mi
- Path width
- 80 yd
- Property damage
- $265,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.776, -92.370
This EF0 tornado moved across rural portions of northwest Fillmore County west of Chatfield. The tornado produced damage to several farm buildings and trees along its path.
Thunderstorm Wind, Olmsted
- When
- December 15, 7:43 PM CST
- Where
- Olmsted County, 0.85 mi NW of Stewartville
- Measured
- 55 kt (63 mph) estimated gust
- Property damage
- $10,000
- Reported by
- Emergency Manager
- Coordinates
- 43.860, -92.490
Widespread power outages occurred in Stewartville from downed power lines.
Funnel Cloud, Fillmore
- When
- December 15, 7:44 PM CST
- Where
- Fillmore County, 0.85 mi SE of Harmony
- Reported by
- Trained Spotter
- Coordinates
- 43.540, -92.010
A funnel cloud was sighted near Harmony.
Thunderstorm Wind, Fillmore
- When
- December 15, 7:44 PM CST to 7:47 PM CST
- Where
- Fillmore County, 3.65 mi SW of Hutton to 2.3 mi SSW of Preston
- Measured
- 55 kt (63 mph) estimated gust
- Property damage
- $50,000
- Reported by
- Trained Spotter
- Coordinates
- 43.590, -92.110
A path of wind damage occurred south of Preston. Trees were blown down and roofs were removed from a couple of cattle barns.
Thunderstorm Wind, Fillmore
- When
- December 15, 7:45 PM CST
- Where
- Fillmore County, 0.5 mi E of Harmony
- Measured
- 73 kt (84 mph) measured gust
- Reported by
- Public
- Coordinates
- 43.550, -92.010
An 84 mph wind gust was measured in Harmony with a private weather station.
Thunderstorm Wind, Olmsted
- When
- December 15, 7:45 PM CST
- Where
- Olmsted County, 0.69 mi S of (Rst)rochester Muni
- Measured
- 67 kt (77 mph) measured gust
- Reported by
- ASOS
- Coordinates
- 43.910, -92.500
A 77 mph wind gust was measured by the automated weather observing equipment at the Rochester airport.
Thunderstorm Wind, Dodge
- When
- December 15, 7:45 PM CST
- Where
- Dodge County, 2.1 mi ESE of Kasson
- Measured
- 63 kt (72 mph) measured gust
- Reported by
- Mesonet
- Coordinates
- 44.020, -92.710
A 72 mph wind gust was measured by a mesonet station east of Kasson.
Thunderstorm Wind, Fillmore
- When
- December 15, 7:45 PM CST
- Where
- Fillmore County, 4.6 mi NNW of Washington
- Measured
- 57 kt (66 mph) estimated gust
- Property damage
- $15,000
- Reported by
- Public
- Coordinates
- 43.830, -92.390
The walls of a farm outbuilding were blown out north of Washington.
Thunderstorm Wind, Olmsted
- When
- December 15, 7:45 PM CST
- Where
- Olmsted County, 2.58 mi WSW of Pleasant Grove
- Measured
- 57 kt (66 mph) estimated gust
- Property damage
- $50,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.860, -92.430
An open air farm outbuilding was destroyed and a quarter of the roof was removed from a barn east of Stewartville.
Thunderstorm Wind, Fillmore
- When
- December 15, 7:46 PM CST
- Where
- Fillmore County, 5.23 mi NNW of Washington
- Measured
- 57 kt (66 mph) estimated gust
- Property damage
- $10,000
- Reported by
- Public
- Coordinates
- 43.840, -92.390
Wooden power poles were snapped north of Washington.
Thunderstorm Wind, Olmsted
- When
- December 15, 7:46 PM CST
- Where
- Olmsted County, 2.42 mi NE of Stewartville
- Measured
- 57 kt (66 mph) estimated gust
- Property damage
- $2,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.870, -92.440
Trees were snapped off northeast of Stewartville.
Thunderstorm Wind, Olmsted
- When
- December 15, 7:47 PM CST
- Where
- Olmsted County, Pleasant Grove
- Measured
- 57 kt (66 mph) estimated gust
- Property damage
- $2,000
- Reported by
- Public
- Coordinates
- 43.870, -92.380
Trees were snapped off in Pleasant Grove.
Tornado, Fillmore
- When
- December 15, 7:48 PM CST to 7:49 PM CST
- Where
- Fillmore County, 0.7 mi S of Preston to 0.27 mi SW of Preston
- Rating
- EF0
- Path length
- 0.51 mi
- Path width
- 40 yd
- Property damage
- $275,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.670, -92.081
This was the second tornado of the night in Fillmore County. This narrow EF0 tornado moved across the eastern and northern parts of Preston. Houses, sheds, cars and trees were damaged along the path. The roofs of the fire department and city hall were both damaged.
Thunderstorm Wind, Dodge
- When
- December 15, 7:49 PM CST
- Where
- Dodge County, 2.13 mi NNW of West Concord
- Measured
- 54 kt (62 mph) estimated gust
- Property damage
- $2,000
- Reported by
- NWS Storm Survey
- Coordinates
- 44.180, -92.910
Trees were blown down north of West Concord.
Thunderstorm Wind, Olmsted
- When
- December 15, 7:49 PM CST
- Where
- Olmsted County, 1.7 mi SW of Cummingsville
- Measured
- 57 kt (66 mph) estimated gust
- Property damage
- $80,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.860, -92.290
A large farm building was blown down southwest of Cummingsville.
Tornado, Dodge
- When
- December 15, 7:50 PM CST to 7:51 PM CST
- Where
- Dodge County, 3 mi N of West Concord to 3.28 mi N of West Concord
- Rating
- EF1
- Path length
- 0.6 mi
- Path width
- 75 yd
- Continued into
- Goodhue, Mn (MPX)
- Property damage
- $10,000
- Reported by
- NWS Storm Survey
- Coordinates
- 44.193, -92.901
An EF1 tornado formed in far northern Dodge County north of West Concord and then moved northeast into Goodhue County. Two farms along the path of the tornado sustained minor damage.
Tornado, Fillmore
- When
- December 15, 7:51 PM CST to 7:53 PM CST
- Where
- Fillmore County, 0.63 mi NNE of Preston to 0.77 mi SW of Isinours
- Rating
- EF1
- Path length
- 1.77 mi
- Path width
- 75 yd
- Property damage
- $230,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.688, -92.074
This was the third tornado of the night in Fillmore County. This EF1 tornado developed northeast of Preston and moved northeast for about 2 miles before dissipating. Farm outbuildings and trees were damaged along the path.
Thunderstorm Wind, Olmsted
- When
- December 15, 7:51 PM CST
- Where
- Olmsted County, 1.47 mi SSW of Rochester
- Measured
- 52 kt (60 mph) estimated gust
- Property damage
- $5,000
- Reported by
- Trained Spotter
- Coordinates
- 44.010, -92.480
Trees were blown down in Rochester from an estimated 60 mph wind gust. A resident on the southeast side of the city was trapped in a house when a large tree fell and blocked the exit to the house.
Thunderstorm Wind, Olmsted
- When
- December 15, 7:51 PM CST
- Where
- Olmsted County, 0.5 mi W of Marion
- Measured
- 57 kt (66 mph) estimated gust
- Property damage
- $2,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.950, -92.360
Trees were snapped off southeast of Rochester.
Thunderstorm Wind, Olmsted
- When
- December 15, 7:51 PM CST
- Where
- Olmsted County, Marion
- Measured
- 57 kt (66 mph) estimated gust
- Property damage
- $4,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.950, -92.350
Several large pine trees were snapped off southeast of Rochester.
Thunderstorm Wind, Olmsted
- When
- December 15, 7:53 PM CST
- Where
- Olmsted County, 2.96 mi ESE of Rochester
- Measured
- 54 kt (62 mph) estimated gust
- Deaths
- 1 direct, 0 indirect
- Property damage
- $10,000
- Reported by
- Law Enforcement
- Coordinates
- 44.021, -92.412
One person was killed east of Rochester when a 40 foot pine tree was snapped off, fell and landed on the individual and his pickup truck.
Thunderstorm Wind, Olmsted
- When
- December 15, 7:54 PM CST
- Where
- Olmsted County, 2.44 mi NE of Marion
- Measured
- 56 kt (64 mph) estimated gust
- Property damage
- $50,000
- Reported by
- Broadcast Media
- Coordinates
- 43.974, -92.314
A barn was destroyed southwest of Eyota.
Thunderstorm Wind, Fillmore
- When
- December 15, 7:55 PM CST
- Where
- Fillmore County, 0.5 mi E of Mabel
- Measured
- 73 kt (84 mph) measured gust
- Reported by
- Public
- Coordinates
- 43.520, -91.770
An 84 mph wind gust was measured in Mabel with a private weather station.
Thunderstorm Wind, Fillmore
- When
- December 15, 7:58 PM CST
- Where
- Fillmore County, 7 mi N of Mabel
- Measured
- 55 kt (63 mph) measured gust
- Reported by
- Public
- Coordinates
- 43.621, -91.780
A 63 mph wind gust was measured with a private weather station north of Mabel.
Thunderstorm Wind, Fillmore
- When
- December 15, 8:00 PM CST
- Where
- Fillmore County, 0.69 mi S of Peterson
- Measured
- 50 kt (58 mph) estimated gust
- Property damage
- $2,000
- Reported by
- Public
- Coordinates
- 43.790, -91.830
Trees were blown down in Peterson.
Tornado, Fillmore
- When
- December 15, 8:01 PM CST to 8:02 PM CST
- Where
- Fillmore County, 1.16 mi SE of Arendahl to 1.29 mi ENE of Arendahl
- Rating
- EF1
- Path length
- 1.19 mi
- Path width
- 250 yd
- Property damage
- $40,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.818, -91.903
This was the fourth tornado of the night in Fillmore County. This EF1 tornado formed just south of the tiny town of Arendahl and was only on the ground for one minute as it moved rapidly northeast. The damage was limited to a large grove of trees northeast of Arendahl.
Thunderstorm Wind, Fillmore
- When
- December 15, 8:01 PM CST
- Where
- Fillmore County, 0.5 mi W of Arendahl
- Measured
- 57 kt (66 mph) estimated gust
- Property damage
- $8,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.830, -91.930
Large trees were snapped in a cemetery near Arendahl.
Tornado, Fillmore
- When
- December 15, 8:02 PM CST to 8:04 PM CST
- Where
- Fillmore County, 1.17 mi NNW of Bratsberg to 3.22 mi SSE of Rushford
- Rating
- EF1
- Path length
- 2.35 mi
- Path width
- 75 yd
- Property damage
- $95,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.746, -91.776
This was the fifth tornado of the night in Fillmore County. This EF1 tornado formed south of Rushford and moved to the northeast before dissipating. The tornado destroyed some farm outbuildings and damaged trees along its path.
Thunderstorm Wind, Fillmore
- When
- December 15, 8:02 PM CST
- Where
- Fillmore County, 1.5 mi E of Arendahl
- Measured
- 57 kt (66 mph) estimated gust
- Property damage
- $5,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.830, -91.890
Trees were blown down and snapped off east of Arendahl.
Thunderstorm Wind, Fillmore
- When
- December 15, 8:02 PM CST to 8:04 PM CST
- Where
- Fillmore County, 0.85 mi SW of Rushford Vlg to 1.47 mi NNE of Rushford Vlg
- Measured
- 57 kt (66 mph) estimated gust
- Property damage
- $20,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.810, -91.810
A path of wind damage occurred west of Rushford where trees were blown down, snapped and uprooted. A farm outbuilding was also damaged.
Thunderstorm Wind, Fillmore
- When
- December 15, 8:02 PM CST
- Where
- Fillmore County, 3.14 mi SSE of Rushford
- Measured
- 57 kt (66 mph) estimated gust
- Property damage
- $2,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.780, -91.740
Large tree branches were broken southeast of Rushford.
Thunderstorm Wind, Wabasha
- When
- December 15, 8:02 PM CST
- Where
- Wabasha County, 3.71 mi SE of Plainview
- Measured
- 50 kt (58 mph) estimated gust
- Property damage
- $25,000
- Reported by
- NWS Storm Survey
- Coordinates
- 44.130, -92.120
A barn was destroyed southeast of Plainview.
Tornado, Wabasha
- When
- December 15, 8:03 PM CST to 8:07 PM CST
- Where
- Wabasha County, 3.04 mi SE of Plainview to 3.54 mi ENE of Plainview
- Rating
- EF1
- Path length
- 4.03 mi
- Path width
- 40 yd
- Property damage
- $65,000
- Reported by
- NWS Storm Survey
- Coordinates
- 44.134, -92.134
An EF1 tornado developed southeast of Plainview and moved northeast across rural portions of southern Wabasha County. Farm outbuildings and trees were damaged along the path of the tornado.
Thunderstorm Wind, Wabasha
- When
- December 15, 8:04 PM CST
- Where
- Wabasha County, Plainview
- Measured
- 74 kt (85 mph) measured gust
- Reported by
- Public
- Coordinates
- 44.170, -92.170
An 85 mph wind gust was measured by a private weather station in Plainview.
Thunderstorm Wind, Winona
- When
- December 15, 8:04 PM CST
- Where
- Winona County, 3.49 mi S of Fremont
- Measured
- 57 kt (66 mph) estimated gust
- Property damage
- $1,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.870, -91.910
Large tree limbs were broke off south of Fremont.
Thunderstorm Wind, Wabasha
- When
- December 15, 8:04 PM CST
- Where
- Wabasha County, 2.1 mi ESE of Plainview
- Measured
- 53 kt (61 mph) estimated gust
- Property damage
- $10,000
- Reported by
- NWS Storm Survey
- Coordinates
- 44.160, -92.130
The metal roof was partially removed from a pole shed east of Plainview.
Thunderstorm Wind, Wabasha
- When
- December 15, 8:05 PM CST
- Where
- Wabasha County, Plainview
- Measured
- 51 kt (59 mph) estimated gust
- Property damage
- $25,000
- Reported by
- Broadcast Media
- Coordinates
- 44.170, -92.170
A large pole shed was extensively damaged in Plainview.
Thunderstorm Wind, Houston
- When
- December 15, 8:05 PM CST
- Where
- Houston County, 3.56 mi W of Perkins
- Measured
- 53 kt (61 mph) estimated gust
- Property damage
- $1,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.790, -91.720
Large tree branches were broken southwest of Money Creek.
Thunderstorm Wind, Wabasha
- When
- December 15, 8:05 PM CST
- Where
- Wabasha County, 2.03 mi NE of Elgin
- Measured
- 52 kt (60 mph) estimated gust
- Property damage
- $40,000
- Reported by
- NWS Storm Survey
- Coordinates
- 44.150, -92.220
A barn was destroyed northeast of Elgin.
Tornado, Houston
- When
- December 15, 8:06 PM CST to 8:11 PM CST
- Where
- Houston County, 1.51 mi S of Perkins to 3 mi NE of Money Creek
- Rating
- EF1
- Path length
- 7.31 mi
- Path width
- 250 yd
- Property damage
- $300,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.758, -91.653
An EF1 tornado formed west of Houston and moved northeast, passing to the east of Money Creek before dissipating just before the Winona County line. Several farms along the Root River sustained damage from this tornado.
Thunderstorm Wind, Winona
- When
- December 15, 8:06 PM CST to 8:07 PM CST
- Where
- Winona County, 3.29 mi WSW of Hart to 1.99 mi W of Hart
- Measured
- 53 kt (61 mph) estimated gust
- Property damage
- $50,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.860, -91.790
A path of wind damage occurred west of Hart where the roof was removed from a farm outbuilding, a metal pole shed was destroyed and siding removed from a house.
Thunderstorm Wind, Houston
- When
- December 15, 8:08 PM CST to 8:10 PM CST
- Where
- Houston County, 1.65 mi WSW of Money Creek to 1.38 mi N of Money Creek
- Measured
- 54 kt (62 mph) estimated gust
- Property damage
- $3,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.810, -91.650
A path of wind damage occurred west of Money Creek where large tree limbs were broken off.
Tornado, Winona
- When
- December 15, 8:10 PM CST to 8:11 PM CST
- Where
- Winona County, 2.16 mi NNE of Wyattville to 2.6 mi SE of The Arches
- Rating
- EF0
- Path length
- 0.63 mi
- Path width
- 40 yd
- Property damage
- $95,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.961, -91.791
This short-lived EF0 tornado moved over rural areas southeast of Lewiston. Farm outbuildings, a garage and trees were damaged by the tornado.
Thunderstorm Wind, Winona
- When
- December 15, 8:10 PM CST
- Where
- Winona County, 0.5 mi E of Lewiston
- Measured
- 51 kt (59 mph) estimated gust
- Property damage
- $10,000
- Reported by
- Emergency Manager
- Coordinates
- 43.980, -91.870
Power outages occurred in Lewiston from downed power lines.
Thunderstorm Wind, Winona
- When
- December 15, 8:11 PM CST
- Where
- Winona County, 2.55 mi SE of The Arches
- Measured
- 55 kt (63 mph) estimated gust
- Property damage
- $50,000
- Reported by
- County Official
- Coordinates
- 43.970, -91.790
A house southeast of Lewiston sustained significant wind damage.
Thunderstorm Wind, Winona
- When
- December 15, 8:11 PM CST
- Where
- Winona County, 1.21 mi SE of The Arches
- Measured
- 57 kt (66 mph) estimated gust
- Property damage
- $50,000
- Reported by
- Public
- Coordinates
- 43.990, -91.800
Two open air farm outbuildings were destroyed east of Lewiston.
Thunderstorm Wind, Winona
- When
- December 15, 8:12 PM CST
- Where
- Winona County, 2.11 mi WSW of Wilson
- Measured
- 50 kt (58 mph) estimated gust
- Property damage
- $10,000
- Reported by
- Public
- Coordinates
- 43.940, -91.740
Power poles were snapped southwest of Wilson.
Thunderstorm Wind, Winona
- When
- December 15, 8:12 PM CST to 8:16 PM CST
- Where
- Winona County, 5.23 mi SSW of Ridgeway to 2.11 mi ESE of Ridgeway
- Measured
- 56 kt (64 mph) estimated gust
- Property damage
- $15,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.850, -91.610
A path of wind damage occurred from south of Ridgeway to near Interstate 90 east of Ridgeway. The roof was removed from a farm outbuilding and trees were uprooted and snapped off.
Thunderstorm Wind, Winona
- When
- December 15, 8:12 PM CST to 8:13 PM CST
- Where
- Winona County, 4.84 mi S of Ridgeway to 3.49 mi S of Ridgeway
- Measured
- 57 kt (66 mph) estimated gust
- Property damage
- $15,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.850, -91.570
A path of wind damage occurred south of Ridgeway. The roof to a home was damaged and trees were snapped off.
Thunderstorm Wind, Winona
- When
- December 15, 8:14 PM CST
- Where
- Winona County, 1.38 mi N of Wilson
- Measured
- 50 kt (58 mph) estimated gust
- Property damage
- $25,000
- Reported by
- Emergency Manager
- Coordinates
- 43.970, -91.700
A semi was blown over on Interstate 90 near Wilson.
Thunderstorm Wind, Winona
- When
- December 15, 8:14 PM CST
- Where
- Winona County, Stockton
- Measured
- 51 kt (59 mph) estimated gust
- Property damage
- $30,000
- Reported by
- Broadcast Media
- Coordinates
- 44.030, -91.770
Farm outbuildings sustained wind damage near Stockton.
Thunderstorm Wind, Winona
- When
- December 15, 8:16 PM CST
- Where
- Winona County, 0.85 mi NE of Ridgeway
- Measured
- 57 kt (66 mph) estimated gust
- Property damage
- $2,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.930, -91.560
Trees were snapped off northeast of Ridgeway.
Tornado, Winona
- When
- December 15, 8:17 PM CST to 8:19 PM CST
- Where
- Winona County, 1.7 mi SSW of Homer to 0.92 mi ENE of Homer
- Rating
- EF1
- Path length
- 2.3 mi
- Path width
- 40 yd
- Continued into
- Trempealeau, Wi (ARX)
- Property damage
- $100,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.996, -91.580
An EF1 tornado formed on a ridge top southwest of Homer, moved northeast across Homer before moving out over the Mississippi River and into Trempealeau County, Wisconsin. The main damage occurred on the ridge top to trees and outbuildings. By the time the tornado reached Homer, it was weakening and damage was mainly limited to trees.
Thunderstorm Wind, Winona
- When
- December 15, 8:17 PM CST
- Where
- Winona County, 2.55 mi SW of Homer
- Measured
- 57 kt (66 mph) estimated gust
- Property damage
- $2,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.990, -91.600
Trees were snapped off southwest of Homer.
Thunderstorm Wind, Winona
- When
- December 15, 8:17 PM CST
- Where
- Winona County, 1.38 mi S of Homer
- Measured
- 53 kt (61 mph) estimated gust
- Property damage
- $3,000
- Reported by
- NWS Storm Survey
- Coordinates
- 44.000, -91.570
Trees were snapped off and uprooted south of Homer.
Thunderstorm Wind, Winona
- When
- December 15, 8:17 PM CST
- Where
- Winona County, 0.69 mi S of Pickwick
- Measured
- 56 kt (64 mph) estimated gust
- Property damage
- $2,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.970, -91.490
Trees were snapped off in Pickwick.
Thunderstorm Wind, Winona
- When
- December 15, 8:17 PM CST to 8:18 PM CST
- Where
- Winona County, 0.69 mi S of Pickwick to 0.69 mi S of Lamoille
- Measured
- 56 kt (64 mph) estimated gust
- Property damage
- $5,000
- Reported by
- NWS Storm Survey
- Coordinates
- 43.970, -91.490
A path of snapped off trees occurred near Pickwick.
Thunderstorm Wind, Winona
- When
- December 15, 8:17 PM CST
- Where
- Winona County, Winona
- Measured
- 50 kt (58 mph) estimated gust
- Property damage
- $10,000
- Reported by
- Newspaper
- Coordinates
- 44.050, -91.650
Trees and power poles were snapped off in Winona.
Thunderstorm Wind, Winona
- When
- December 15, 8:18 PM CST
- Where
- Winona County, 1.64 mi ESE of Lamoille
- Measured
- 52 kt (60 mph) estimated gust
- Property damage
- $5,000
- Reported by
- Public
- Coordinates
- 43.990, -91.450
Power outages were reported east of Pickwick from downed power lines.
Hail, Winona
- When
- December 15, 8:24 PM CST
- Where
- Winona County, 0.85 mi SE of Dakota
- Measured
- 0.75 in hail
- Reported by
- Emergency Manager
- Coordinates
- 43.910, -91.360
- Tornado
- A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
- Thunderstorm Wind
- Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
- Funnel Cloud
- A rotating column of cloud extending from a thunderstorm that did not reach the ground.
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Tornadoes and Hail in Iowa, December 15 to 16, 2021$7.1 million · EF2 · 182 events
- High Wind and Winter Weather in Michigan, December 15 to 16, 20212 deaths · 1 injured · $218,000 · 61 kt wind · 14 events
- Wildfire and Dust Storm in Kansas, December 15 to 17, 20211 death · 4 injured · $615,000 · 104 kt wind · 32 events
- Tornadoes and Damaging Winds in Iowa, December 15 to 16, 2021$4.0 million · EF2 · 69 events
- Wildfire and Damaging Winds in Kansas, December 15 to 16, 20211 death · $1.8 million · 84 kt wind · 16 events
- Tornadoes and Hail in Nebraska, December 15, 2021$6.8 million · EF1 · 121 events
- Tornadoes and Hail in Wisconsin, December 15, 20211 injured · $2.1 million · EF2 · 47 events
- Dense Fog in Minnesota, December 15, 20211 death · 4 injured · $130,000 · 1 event
- Wildfire and High Wind in Kansas, December 15 to 16, 20211 death · 73 kt wind · 64 events
- Damaging Winds in Iowa, December 15, 20211 death · 70 kt wind · 36 events
- Tornadoes and Hail in Nebraska, December 15, 20212 injured · EF2 · 81 events
- Tornadoes and Hail in Iowa, December 15, 2021$4.0 million · EF1 · 35 events
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: 995004, 997070, 997071, 997072, 997073, 995286, 995287, 997014, 995288, 995312, 995313, 995371, 995311, 997109, 995010, 995378, 997074, 995368, 997013, 997015, 997110, 999014, 995011, 995366, 995374, 997012, 995375, 995376, 995377, 997111, 997120, 997112, 997121, 997122, 995012, 997119, 997123, 995089, 995014, 995379, and more.