Alert archive / Minnesota / Areal Flood Warnings in 2024

Areal Flood Warning 5, NWS Twin Cities, MN

June 21, 20246 counties in Minnesota

NWS Twin Cities, MN issued this areal flood warning at Jun 21, 2024, 2:29 PM CDT for 6 counties in Minnesota. It was in force for 12 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 21, 2024, 2:29 PM CDT (19:29 UTC)
Expired: Jun 22, 2024, 2:15 AM CDT
In force: 12 hr
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Flood severity: None

Counties Blue Earth County, MN, Le Sueur County, MN, Rice County, MN, Steele County, MN, Waseca County, MN, Watonwan County, MN

The radar

The Minneapolis radar (KMPX), 81 km from the middle of the area, began a volume at 19:30 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 7.5 hours before the alert went out and 81 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2 J/kg
Mixed-layer CIN: -146 J/kg
Mixed-layer LCL: 673 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: -14 m²/s²
0-3 km storm-relative helicity: 133 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood warning went out, 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 this areal flood warning went out at Jun 21, 1:00 PM CDT, 1 hour 29 minutes earlier.

Area forecast discussion, Jun 21, 1:00 PM CDT, 1 hour 29 minutes before

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Hazardous weather outlook, Jun 21, 5:08 AM CDT, 9 hours 21 minutes before

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In the hours before

Special weather statement, Jun 21, 11:19 AM CDT, 3 hours 10 minutes before

Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1119 AM CDT Fri Jun 21 2024

MNC013-015-079-103-131-161-165-211745-
Le Sueur-Brown-Blue Earth-Watonwan-Waseca-Rice-Nicollet-
1119 AM CDT Fri Jun 21 2024

...URBAN AND SMALL STREAM FLOODING EXPECTED...

Thunderstorms with heavy rain will cause minor flooding in the
following counties...

Le Sueur...Brown...Blue Earth...Watonwan...Waseca...Rice...
Nicollet...

* Until 1245 PM CDT.

* At 1118 AM CDT, Doppler radar indicated heavy rain that will cause
  urban and small stream flooding in the area.

* Some locations that will experience minor flooding include...
  Mankato, North Mankato, St. James, Lake Crystal, Eagle Lake,
  Madelia, Janesville, Waterville, Madison Lake, St. Clair, Elysian,
  and Butterfield.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 4385 9486 4407 9486 4435 9348 4414 9348
      4385 9472

BPH

Local storm report, Jun 21, 11:42 AM CDT, 2 hours 47 minutes before

Preliminary Local Storm Report
National Weather Service Twin Cities/Chanhassen MN
1142 AM CDT Fri Jun 21 2024

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

0700 AM     Rain             2 N Odin                43.90N 94.74W
06/21/2024  M4.00 Inch       Watonwan           MN   Cocorahs

            Cocorahs station MN-WW-8 Butterfield 5.0
            SSE.

0900 AM     Rain             5 WNW Vernon Center     43.98N 94.26W
06/21/2024  M3.02 Inch       Blue Earth         MN   Cocorahs

            Cocorahs station MN-BU-67 Vernon Center 4.9
            WNW.

0700 AM     Rain             2 SSW La Salle          44.05N 94.58W
06/21/2024  M2.50 Inch       Watonwan           MN   Cocorahs

            Cocorahs station MN-WW-13 La Salle 1.5 SSW.

0700 AM     Rain             2 NNE Madelia           44.07N 94.41W
06/21/2024  M2.50 Inch       Watonwan           MN   Cocorahs

            Cocorahs station MN-WW-12 Madelia 1.6 NNE.

0700 AM     Rain             1 ESE North Mankato     44.17N 94.01W
06/21/2024  M2.12 Inch       Nicollet           MN   Cocorahs

            Cocorahs station MN-NC-7 North Mankato 1.3
            ESE.

0800 AM     Rain             3 NE Lemond             44.01N 93.33W
06/21/2024  M2.10 Inch       Steele             MN   Cocorahs

            Cocorahs station MN-SE-29 Owatonna 7.6 SW.

0950 AM     Rain             1 SSW Skyline           44.12N 94.05W
06/21/2024  M2.10 Inch       Blue Earth         MN   Cocorahs

            Cocorahs station MN-BU-72 Mankato 4.8 SW.

&&

Local storm report, Jun 21, 11:46 AM CDT, 2 hours 43 minutes before

Preliminary Local Storm Report
National Weather Service Twin Cities/Chanhassen MN
1146 AM CDT Fri Jun 21 2024

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

1145 AM     Rain             Pine Island             44.20N 92.65W
06/21/2024  M3.00 Inch       Goodhue            MN   Trained Spotter

            Storm total rainfall photo measurement
            provided via social media.

&&

RMD

Local storm report, Jun 21, 11:53 AM CDT, 2 hours 36 minutes before

Preliminary Local Storm Report
National Weather Service Twin Cities/Chanhassen MN
1153 AM CDT Fri Jun 21 2024

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

1135 AM     Flash Flood      1 S Mankato             44.15N 93.99W
06/21/2024                   Blue Earth         MN   Trained Spotter

            Trained spotter reported 1-2 feet of
            standing water near the intersection of
            Warren St. and Balcerzak Dr.

&&

RMD

Local storm report, Jun 21, 12:43 PM CDT, 1 hour 46 minutes before

Preliminary Local Storm Report
National Weather Service Twin Cities/Chanhassen MN
1243 PM CDT Fri Jun 21 2024

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

1230 PM     Flood            1 SSE Skyline           44.13N 94.03W
06/21/2024                   Blue Earth         MN   Trained Spotter

            Trained Spotter provided photos of flooded
            roadway and landslide near the intersection
            of Indian Hils Ln and Indian Lake Rd.

&&

RMD

Local storm report, Jun 21, 12:50 PM CDT, 1 hour 39 minutes before

Preliminary Local Storm Report
National Weather Service Twin Cities/Chanhassen MN
1250 PM CDT Fri Jun 21 2024

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

1249 PM     Rain             St. James               43.98N 94.63W
06/21/2024  M1.50 Inch       Watonwan           MN   Trained Spotter

            Trained spotter reported 1.5 inches over the
            last two hours bringing storm total rain to
            5.6 inches. Also numerous streets in the
            city are ponding.

&&

RMD

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 20, 9:30 PM CDT	River Flood Warning	MPX	Chippewa, Lac qui Parle, Yellow Medicine	24 hr
Jun 20, 9:30 PM CDT	River Flood Warning	MPX	Dakota, Rice	21 days
Jun 20, 9:30 PM CDT	River Flood Warning	MPX	Redwood	21 days
Jun 20, 9:30 PM CDT	River Flood Warning	MPX	Lac qui Parle	5 days
Jun 21, 9:44 AM CDT	Special Weather Statement	MPX	Blue Earth, Watonwan	91 min
Jun 21, 11:19 AM CDT	Special Weather Statement	MPX	Blue Earth, Watonwan	86 min
Jun 21, 11:40 AM CDT	Flash Flood Warning	MPX	Blue Earth, Nicollet	3 hr
Jun 21, 4:06 PM CDT	River Flood Warning	MPX	Dodge, Goodhue	67 hr
Jun 21, 4:06 PM CDT	River Flood Warning	MPX	Goodhue	40 hr

Nearby

Areal Flood Warnings in Minnesota, 2024 Every areal flood warning in 2024

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.