Alert archive / Minnesota / Flash Flood Warnings in 2026

Flash Flood Warning 8, NWS Twin Cities, MN

July 31, 2026Le Sueur County, Nicollet County, Sibley County, Minnesota

NWS Twin Cities, MN issued this flash flood warning at Jul 31, 2026, 7:52 AM CDT for Le Sueur County, Nicollet County, Sibley County, Minnesota. It was in force for 3 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 31, 2026, 7:52 AM CDT (12:52 UTC)
Expired: Jul 31, 2026, 10:50 AM CDT
In force: 3 hr
Issued by: NWS Twin Cities, MN
Area: Storm-based polygon
Flood severity: None

Counties Le Sueur County, MN, Nicollet County, MN, Sibley County, MN

The radar

The Minneapolis radar (KMPX), 54 km from the middle of the area, began a volume at 12:52 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.

What was reported inside it

Time	Report	Where	Remark
Jul 31, 10:00 AM CDT	FLASH FLOOD	3 N St. Peter, MN	Heavy rain caused a mudslide that briefly blocked the southbound lanes of US169 north of St. Peter.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The text

As transmitted.

678 
WGUS53 KMPX 311252
FFWMPX
MNC079-103-143-311845-
/O.NEW.KMPX.FF.W.0008.260731T1252Z-260731T1845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Twin Cities/Chanhassen MN
752 AM CDT Fri Jul 31 2026

The National Weather Service in the Twin Cities has issued a

* Flash Flood Warning for...
  Southeastern Sibley County in central Minnesota...
  Central Le Sueur County in south central Minnesota...
  Northeastern Nicollet County in south central Minnesota...

* Until 145 PM CDT.

* At 752 AM CDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Between 3.5 and 4.5 inches of
  rain have fallen. Additional rainfall amounts of 1 to 3 inches are
  possible in the warned area. Flash flooding is ongoing or expected
  to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...The pubic reported over 4 inches of rain fell in some
           spots, and radar indicated additional rainfall of 1 to 3
           inches possible this morning.

  IMPACT...Flash flooding of small creeks and streams, urban areas,
           highways, streets and underpasses as well as other poor
           drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  St. Peter, Le Sueur, Le Center, Henderson, Kasota, Ottawa, St
  Thomas and St Henry.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4450 9401 4455 9400 4455 9391 4454 9391
      4455 9390 4454 9379 4449 9375 4440 9374
      4433 9363 4428 9363 4427 9370 4435 9378
      4435 9386 4431 9388 4429 9392 4429 9406
      4432 9406 4436 9402 4449 9403

FLASH FLOOD...RADAR INDICATED

$$

JRB

1 follow-up statement

047 
WGUS73 KMPX 311550
FFSMPX

Flash Flood Statement
National Weather Service Twin Cities/Chanhassen MN
1050 AM CDT Fri Jul 31 2026

MNC079-103-143-311600-
/O.CAN.KMPX.FF.W.0008.000000T0000Z-260731T1845Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Le Sueur MN-Nicollet MN-Sibley MN-
1050 AM CDT Fri Jul 31 2026

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN SIBLEY, CENTRAL
LE SUEUR AND NORTHEASTERN NICOLLET COUNTIES...

Flash Flooding is no longer expected to pose a threat. Please
continue to heed remaining road closures.

A Flood Watch remains in effect until 1200 PM CDT for portions of
central, south central, southwest, and west central Minnesota.

&&

LAT...LON 4450 9401 4455 9400 4455 9391 4454 9391
      4455 9390 4454 9379 4449 9375 4440 9374
      4433 9363 4428 9363 4427 9370 4435 9378
      4435 9386 4431 9388 4429 9392 4429 9406
      4432 9406 4436 9402 4449 9403

$$

MPG

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 31, 6:29 AM CDT	Special Weather Statement	MPX	Le Sueur, Sibley	46 min

Nearby

Flash Flood Warnings in Minnesota, 2026 Every flash flood warning in 2026

Sources

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