Alert archive / Minnesota / Flash Flood Warnings in 2021
Flash Flood Warning 3, NWS Twin Cities, MN
NWS Twin Cities, MN issued this flash flood warning at Aug 27, 2021, 4:09 AM CDT for Faribault County, Freeborn County, Minnesota. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 27, 2021, 4:09 AM CDT (09:09 UTC)
- Expired
- Aug 27, 2021, 7:00 AM CDT
- In force
- 3 hr
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Faribault County, MN, Freeborn County, MN
The radar
The Minneapolis radar (KMPX), 148 km from the middle of the area, began a volume at 09:10 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 00:00Z, 9.2 hours before the alert went out and 148 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 792 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 393 m²/s²
- 0-3 km storm-relative helicity
- 392 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
401
WGUS53 KMPX 270909
FFWMPX
MNC043-047-271200-
/O.NEW.KMPX.FF.W.0003.210827T0909Z-210827T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Twin Cities/Chanhassen MN
409 AM CDT Fri Aug 27 2021
The National Weather Service in the Twin Cities has issued a
* Flash Flood Warning for...
Southeastern Faribault County in south central Minnesota...
Southern Freeborn County in south central Minnesota...
* Until 700 AM CDT.
* At 409 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 3 inches of rain
have fallen. The expected rainfall rate is 1 to 3 inches in 1
hour. Additional rainfall amounts of 1 to 2 inches are possible in
the warned area. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
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...
Glenville, Bricelyn, Mansfield, Twin Lakes and Kiester.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 4350 9398 4353 9396 4354 9394 4358 9384
4359 9371 4360 9350 4359 9316 4350 9361
4350 9364 4350 9365 4350 9367 4350 9368
4350 9373 4350 9387 4350 9388
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-3 INCHES IN 1 HOUR
$$
@NWSTwinCities1 follow-up statement
385
WGUS73 KMPX 271202 RRA
FFSMPX
Flash Flood Statement
National Weather Service Twin Cities/Chanhassen MN
702 AM CDT Fri Aug 27 2021
MNC043-047-271212-
/O.EXP.KMPX.FF.W.0003.000000T0000Z-210827T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Faribault MN-Freeborn MN-
702 AM CDT Fri Aug 27 2021
...FLASH FLOOD WARNING HAS EXPIRED FOR SOUTHEASTERN FARIBAULT AND
SOUTHERN FREEBORN COUNTIES...
Flood waters have receded. The heavy rain has ended. Flooding is no
longer expected to pose a threat. Please continue to heed remaining
road closures.
LAT...LON 4350 9398 4353 9396 4354 9394 4358 9384
4359 9371 4360 9350 4359 9316 4350 9361
4350 9364 4350 9365 4350 9367 4350 9368
4350 9373 4350 9387 4350 9388
$$
@NWSTwinCitiesThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 12:56 AM CDT | Special Weather Statement | MPX | Martin | 34 min |
| Aug 27, 2:06 AM CDT | Flash Flood Warning | MPX | Freeborn | 5 hr |
| Aug 27, 2:59 AM CDT | Special Weather Statement | MPX | Brown, Faribault, Martin, Redwood, Watonwan | 3 hr |
| Aug 27, 6:12 AM CDT | Special Weather Statement | MPX | Ramsey | 2 hr |
Nearby
Flash Flood Warnings in Minnesota, 2021Every flash flood warning in 2021
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.