Minnesota, 2019

Flood in Minnesota, March 22 to 31, 2019

March 22 to 31, 2019 · NWS ABR · 1 event in 1 county or zone

Snow melt flooding occurred on the Minnesota River at the end of March. The river rose to almost a foot above the flood stage of 10 feet to 11 feet at Ortonville.

Where it happened

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  • Tornadoes
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  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
1

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.

What happened

The episode as NWS ABR wrote it up.

Snow melt flooding occurred on the Minnesota River at the end of March. The river rose to almost a foot above the flood stage of 10 feet to 11 feet at Ortonville. The flooding continued into April.

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 Aberdeen, SD wrote its last area forecast discussion before the first event at Mar 22, 2:10 PM CST, 20 minutes earlier.

Area forecast discussion, Mar 22, 2:10 PM CST, 20 minutes before
Area Forecast Discussion
National Weather Service Aberdeen SD
310 PM CDT Fri Mar 22 2019

.SHORT TERM...(This Evening through Saturday Night)
Issued at 310 PM CDT Fri Mar 22 2019

Surface high pressure will begin moving east of the area tonight,
allowing for light south to southeast winds to develop. Temps are
expected to fall into the teens and 20s overnight, with areas of fog
possible once again. Several models are again showing fog potential,
so have inserted this into the forecast through Saturday morning.

A warmer air mass moves into the region on Saturday as southerly
breezes continue. Will be looking at temps rising into the 40s and
low 50s on Saturday, with increased snowmelt which will worsen or
create new flooding for some locations. Any precipitation from the
approaching system looks to remain over southern SD during the day
Saturday.

Models continue to show rather scant areal coverage of precip, as
well as amounts Saturday into Saturday night. Therefore, don't
expect precip this weekend to really worsen the flooding over the
region compared to what's already expected from snowmelt alone.
There could be some light freezing rain across the area late
Saturday night if temps can manage to drop below 32 degrees.
Although, expect any impacts to be rather minor due to the limited
coverage of precip as well as the minimal amount of any rainfall.

.LONG TERM...(Sunday through Friday)
Issued at 310 PM CDT Fri Mar 22 2019

The long term portion of the forecast begins with a low pressure
system pushing east of the region, with a secondary storm moving in
from the west. The secondary storm could bring light rain the
Missouri River valley and points west on Sunday. Overall, Sunday
appears more dry than wet. An upper level ridge will build over the
region early next week with high temperatures warming into the 50s
and 60s by Wednesday. The warmer temperatures could lead to more
widespread flooding issues.

Weather conditions at the end of the forecast period are a little
more unclear at this time. While all the models bring a storm system
through the region Thursday and Friday, they differ significantly
with the placement of warm air. The 0Z EC and 12Z GFS are warm with
rain the most likely precipitation type. The 12Z Canadian and ECMWF
are much colder with rain and snow possible. Confidence with the
temperature forecast at the end of next week is low at this time.

&&

.AVIATION...(For the 18Z TAFS through 18Z Saturday Afternoon)
Issued at 1246 PM CDT Fri Mar 22 2019

VFR conditions will prevail today. For the overnight period, BR/FG
is possible once again, with potential for IFR/MVFR visibility. A
brief period of LLWS is also expected at KPIR tonight, and have
included that in the TAF forecast.

&&

.ABR WATCHES/WARNINGS/ADVISORIES...
SD...None.
MN...None.
&&

SHORT TERM...TMT
LONG TERM...SD
AVIATION...TMT
Hazardous weather outlook, Mar 22, 1:44 PM CST, 46 minutes before
Hazardous Weather Outlook...UPDATED
National Weather Service Aberdeen SD
244 PM CDT Fri Mar 22 2019

MNZ039-046-SDZ003>011-015>023-033>037-045-048-051-231945-
Traverse-Big Stone-Corson-Campbell-McPherson-Brown-Marshall-Roberts-
Walworth-Edmunds-Day-Dewey-Potter-Faulk-Spink-Clark-Codington-Grant-
Hamlin-Deuel-Stanley-Sully-Hughes-Hyde-Hand-Jones-Lyman-Buffalo-
244 PM CDT Fri Mar 22 2019 /144 PM MDT Fri Mar 22 2019/

This Hazardous Weather Outlook is for west central Minnesota,
central South Dakota, north central South Dakota and northeast
South Dakota.

.DAY ONE...This afternoon and tonight.

Areas of fog are possible once again tonight, possibly dense at
times.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Continued snowmelt over the next several days will contribute to
overland and river/stream flooding over portions of the region.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

TMT

In the hours before

Local storm report, Mar 22, 9:41 AM CST, 4 hours 49 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
1041 AM CDT FRI MAR 22 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0300 AM     FLOOD            CORONA                  45.33N 96.77W
03/22/2019                   ROBERTS            SD   EMERGENCY MNGR

            LARGE PORTIONS OF CORONA ARE FLOODING.
            ESPECIALLY THE NORTHERN AND WESTERN HALVES
            OF THE TOWN.

&&

JT
Local storm report, Mar 22, 11:50 AM CST, 2 hours 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
1250 PM CDT FRI MAR 22 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0300 AM     FLOOD            CORONA                  45.33N 96.77W
03/22/2019                   ROBERTS            SD   EMERGENCY MNGR

            CORRECTS PREVIOUS FLOOD REPORT TEXT. LARGE
            PORTIONS OF CORONA ARE FLOODING.

&&

JT

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

1 flood. Local standard time, as filed.

Flood, Big Stone

When
March 22, 2:30 PM CST to March 31, 11:59 PM CST
Where
Big Stone County, 1.38 mi S of Ortonville to 2.07 mi WSW of Ortonville Arpt
Cause
Heavy Rain / Snow Melt
Reported by
River/Stream Gage
Coordinates
45.300, -96.450

What these are

Flood
Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Minnesota in 2019Every state in 2019This day in weather historyWarnings in Minnesota, March 2019

Sources

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: 814072.