Alert archive / Minnesota / Flood Watches in 2024
Flood Watch 4, NWS Twin Cities, MN
NWS Twin Cities, MN issued this flood watch at Jun 20, 2024, 3:06 PM CDT for 25 counties in Minnesota; 5 counties in Wisconsin. It took effect at Jun 21, 2024, 1:00 AM CDT. It was in force for 28 hr.
The area
The counties it named.
The facts
- Issued
- Jun 20, 2024, 3:06 PM CDT (20:06 UTC)
- In effect from
- Jun 21, 2024, 1:00 AM CDT
- Expired
- Jun 22, 2024, 4:38 AM CDT
- In force
- 28 hr
- Issued by
- NWS Twin Cities, MN
- Flood severity
- None
All 30 counties
Anoka County, MN, Blue Earth County, MN, Brown County, MN, Carver County, MN, Dakota County, MN, Faribault County, MN, Freeborn County, MN, Goodhue County, MN, Hennepin County, MN, Le Sueur County, MN, Martin County, MN, McLeod County, MN, Nicollet County, MN, Ramsey County, MN, Redwood County, MN, Renville County, MN, Rice County, MN, Scott County, MN, Sibley County, MN, Steele County, MN, Waseca County, MN, Washington County, MN, Watonwan County, MN, Wright County, MN, Yellow Medicine County, MN, Dunn County, WI, Eau Claire County, WI, Pepin County, WI, Pierce County, WI, Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 37 km from the middle of the area, began a volume at 20:09 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, 8.1 hours before the alert went out and 37 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
- 1199 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- -32 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
636 WGUS63 KMPX 202006 FFAMPX URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Twin Cities/Chanhassen MN 306 PM CDT Thu Jun 20 2024 .Two rounds of heavy rainfall are expected over the next 36-48 hours across portions of southern and central Minnesota and western Wisconsin. Rainfall totals of 2 to 4 inches are expected by Saturday afternoon with locally higher amounts of 5+ inches possible. The bulk of the rain is expected to fall late Friday through early Saturday. Rainfall rates may exceed 1"/hour at times. MNZ064-065-073-074-082-091-211200- /O.NEW.KMPX.FA.A.0004.240621T2200Z-240622T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Yellow Medicine-Renville-Redwood-Brown-Watonwan-Martin- Including the cities of Granite Falls, Fairmont, New Ulm, Olivia, St James, and Redwood Falls 306 PM CDT Thu Jun 20 2024 ...FLOOD WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY MORNING... * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of central, south central, southwest, and west central Minnesota, including the following counties, in central Minnesota, Renville. In south central Minnesota, Brown, Martin and Watonwan. In southwest Minnesota, Redwood. In west central Minnesota, Yellow Medicine. * WHEN...From Friday afternoon through Saturday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Area creeks and streams are running high and could flood with more heavy rain. * ADDITIONAL DETAILS... - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ MNZ059>063-066>070-075>078-083>085-092-093-WIZ023>026-211200- /O.NEW.KMPX.FA.A.0004.240621T2200Z-240622T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Wright-Hennepin-Anoka-Ramsey-Washington-McLeod-Sibley-Carver- Scott-Dakota-Nicollet-Le Sueur-Rice-Goodhue-Blue Earth-Waseca- Steele-Faribault-Freeborn-St. Croix-Pierce-Dunn-Pepin- Including the cities of Durand, Chanhassen, Red Wing, River Falls, Monticello, Minneapolis, Menomonie, Hastings, Le Sueur, Gaylord, Mankato, Albert Lea, Owatonna, Hudson, Faribault, Shakopee, St Paul, Hutchinson, St Peter, Blaine, Blue Earth, Victoria, Stillwater, Waseca, and Chaska 306 PM CDT Thu Jun 20 2024 ...FLOOD WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY AFTERNOON... * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of Minnesota, including the following areas, Anoka, Blue Earth, Carver, Dakota, Faribault, Freeborn, Goodhue, Hennepin, Le Sueur, McLeod, Nicollet, Ramsey, Rice, Scott, Sibley, Steele, Waseca, Washington and Wright and west central Wisconsin, including the following areas, Dunn, Pepin, Pierce and St. Croix. * WHEN...From Friday afternoon through Saturday afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Area creeks and streams are running high and could flood with more heavy rain. * ADDITIONAL DETAILS... - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ Dye
6 follow-up statements
833
WGUS63 KMPX 210224
FFAMPX
URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Twin Cities/Chanhassen MN
924 PM CDT Thu Jun 20 2024
.Two rounds of heavy rainfall are expected through early Saturday
across portions of southern and central Minnesota and western
Wisconsin. The first will come late tonight. The second will come
late Friday and Friday night. Rainfall totals of 2 to 4 inches are
expected by Saturday afternoon with locally higher amounts of 5+
inches possible. Rainfall rates may exceed 1"/hour at times.
MNZ064-065-073-074-082-091-211200-
/O.EXT.KMPX.FA.A.0004.240621T0600Z-240622T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Yellow Medicine-Renville-Redwood-Brown-Watonwan-Martin-
Including the cities of St James, Olivia, Granite Falls, New Ulm,
Fairmont, and Redwood Falls
924 PM CDT Thu Jun 20 2024
...FLOOD WATCH NOW IN EFFECT FROM 1 AM CDT FRIDAY THROUGH SATURDAY
MORNING...
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of central, south central, southwest, and west
central Minnesota, including the following counties, in central
Minnesota, Renville. In south central Minnesota, Brown, Martin and
Watonwan. In southwest Minnesota, Redwood. In west central
Minnesota, Yellow Medicine.
* WHEN...From 1 AM CDT Friday through Saturday morning.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS...
- Saturated soils combined with another couple rounds of very
heavy rain could result in flash flooding.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
MNZ059>063-066>070-075>078-083>085-092-093-WIZ023>026-211200-
/O.EXT.KMPX.FA.A.0004.240621T0900Z-240622T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Wright-Hennepin-Anoka-Ramsey-Washington-McLeod-Sibley-Carver-
Scott-Dakota-Nicollet-Le Sueur-Rice-Goodhue-Blue Earth-Waseca-
Steele-Faribault-Freeborn-St. Croix-Pierce-Dunn-Pepin-
Including the cities of Durand, River Falls, Owatonna, Waseca,
Chaska, Blaine, Hastings, Blue Earth, Gaylord, Monticello,
Hudson, Stillwater, Faribault, Chanhassen, Victoria, St Paul,
Albert Lea, St Peter, Le Sueur, Shakopee, Menomonie, Red Wing,
Mankato, Minneapolis, and Hutchinson
924 PM CDT Thu Jun 20 2024
...FLOOD WATCH NOW IN EFFECT FROM 4 AM CDT FRIDAY THROUGH SATURDAY
AFTERNOON...
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of Minnesota, including the following areas,
Anoka, Blue Earth, Carver, Dakota, Faribault, Freeborn, Goodhue,
Hennepin, Le Sueur, McLeod, Nicollet, Ramsey, Rice, Scott, Sibley,
Steele, Waseca, Washington and Wright and west central Wisconsin,
including the following areas, Dunn, Pepin, Pierce and St. Croix.
* WHEN...From 4 AM CDT Friday through Saturday afternoon.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS...
- Saturated soils combined with another couple rounds of very
heavy rain could result in flash flooding.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
Borghoff331
WGUS63 KMPX 211206
FFAMPX
Flood Watch
National Weather Service Twin Cities/Chanhassen MN
706 AM CDT Fri Jun 21 2024
.Another round of heavy rainfall is expected tonight through early
Saturday across portions of southern and central Minnesota and
western Wisconsin. Rainfall totals of 2 to 4 inches are expected by
Saturday afternoon with locally higher amounts of 5+ inches possible
across south central Minnesota. Rainfall rates may exceed 1"/hour at
times.
MNZ064-065-073-074-082-091-212015-
/O.CON.KMPX.FA.A.0004.000000T0000Z-240622T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Yellow Medicine-Renville-Redwood-Brown-Watonwan-Martin-
Including the cities of Fairmont, Olivia, New Ulm, Granite Falls,
Redwood Falls, and St James
706 AM CDT Fri Jun 21 2024
...FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY MORNING...
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of central, south central, southwest, and west
central Minnesota, including the following counties, in central
Minnesota, Renville. In south central Minnesota, Brown, Martin and
Watonwan. In southwest Minnesota, Redwood. In west central
Minnesota, Yellow Medicine.
* WHEN...Through Saturday morning.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS...
- Saturated soils combined with another couple rounds of very
heavy rain could result in flash flooding.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
MNZ059>063-066>070-075>078-083>085-092-093-WIZ023>026-212015-
/O.CON.KMPX.FA.A.0004.000000T0000Z-240622T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Wright-Hennepin-Anoka-Ramsey-Washington-McLeod-Sibley-Carver-
Scott-Dakota-Nicollet-Le Sueur-Rice-Goodhue-Blue Earth-Waseca-
Steele-Faribault-Freeborn-St. Croix-Pierce-Dunn-Pepin-
Including the cities of Waseca, Gaylord, Blaine, Minneapolis,
River Falls, St Peter, Monticello, Blue Earth, Durand, Albert
Lea, Mankato, Hudson, St Paul, Faribault, Chanhassen, Chaska,
Victoria, Hutchinson, Le Sueur, Owatonna, Stillwater, Shakopee,
Hastings, Red Wing, and Menomonie
706 AM CDT Fri Jun 21 2024
...FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY AFTERNOON...
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of Minnesota, including the following areas,
Anoka, Blue Earth, Carver, Dakota, Faribault, Freeborn, Goodhue,
Hennepin, Le Sueur, McLeod, Nicollet, Ramsey, Rice, Scott, Sibley,
Steele, Waseca, Washington and Wright and west central Wisconsin,
including the following areas, Dunn, Pepin, Pierce and St. Croix.
* WHEN...Through Saturday afternoon.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS...
- Saturated soils combined with another couple rounds of very
heavy rain could result in flash flooding.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
MPG864
WGUS63 KMPX 211750
FFAMPX
URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Twin Cities/Chanhassen MN
1250 PM CDT Fri Jun 21 2024
.Additional heavy rain will be very convectively driven with narrow
bands of heavier rain, like what what was seen in the Mankato area.
Another band could set up somewhere within the watch area this
afternoon through tonight.
WIZ028-220200-
/O.EXA.KMPX.FA.A.0004.000000T0000Z-240622T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Eau Claire-
Including the cities of Eau Claire
1250 PM CDT Fri Jun 21 2024
...FLOOD WATCH IN EFFECT THROUGH SATURDAY AFTERNOON...
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...A portion of west central Wisconsin, including the
following county, Eau Claire.
* WHEN...Through Saturday afternoon.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas. Extensive
street flooding and flooding of creeks and rivers are possible.
* ADDITIONAL DETAILS...
- Saturated soils combined with another couple rounds of very
heavy rain could result in flash flooding.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
MNZ064-065-073-074-082-091-220200-
/O.CON.KMPX.FA.A.0004.000000T0000Z-240622T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Yellow Medicine-Renville-Redwood-Brown-Watonwan-Martin-
Including the cities of Redwood Falls, Olivia, Fairmont, New Ulm,
Granite Falls, and St James
1250 PM CDT Fri Jun 21 2024
...FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY MORNING...
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of central, south central, southwest, and west
central Minnesota, including the following counties, in central
Minnesota, Renville. In south central Minnesota, Brown, Martin and
Watonwan. In southwest Minnesota, Redwood. In west central
Minnesota, Yellow Medicine.
* WHEN...Through Saturday morning.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
* ADDITIONAL DETAILS...
- Saturated soils combined with another couple rounds of very
heavy rain could result in flash flooding.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
MNZ059>063-066>070-075>078-083>085-092-093-WIZ023>026-220200-
/O.CON.KMPX.FA.A.0004.000000T0000Z-240622T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Wright-Hennepin-Anoka-Ramsey-Washington-McLeod-Sibley-Carver-
Scott-Dakota-Nicollet-Le Sueur-Rice-Goodhue-Blue Earth-Waseca-
Steele-Faribault-Freeborn-St. Croix-Pierce-Dunn-Pepin-
Including the cities of Blue Earth, Chaska, Waseca, Albert Lea,
Owatonna, Red Wing, Mankato, Blaine, Minneapolis, Faribault,
Durand, Hastings, Chanhassen, Stillwater, Le Sueur, Shakopee, St
Paul, Victoria, Monticello, River Falls, St Peter, Menomonie,
Hudson, Gaylord, and Hutchinson
1250 PM CDT Fri Jun 21 2024
...FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY AFTERNOON...
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of Minnesota, including the following areas,
Anoka, Blue Earth, Carver, Dakota, Faribault, Freeborn, Goodhue,
Hennepin, Le Sueur, McLeod, Nicollet, Ramsey, Rice, Scott, Sibley,
Steele, Waseca, Washington and Wright and west central Wisconsin,
including the following areas, Dunn, Pepin, Pierce and St. Croix.
* WHEN...Through Saturday afternoon.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas. Extensive
street flooding and flooding of creeks and rivers are possible.
* ADDITIONAL DETAILS...
- Saturated soils combined with another couple rounds of very
heavy rain could result in flash flooding.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
NDC412
WGUS63 KMPX 220027
FFAMPX
Flood Watch
National Weather Service Twin Cities/Chanhassen MN
727 PM CDT Fri Jun 21 2024
.Numerous thunderstorms are redeveloping this evening across
southwestern Minnesota and northern Iowa. Multiple storms may impact
the same areas already hard hit from earlier today. These locations
won't need more than a quarter to half inch to result in flash
flooding. Slow moving storms have the potential to drop 2 inches per
hour. Extensive and potentially life-threatening flash flooding is
possible. Flash Flood Warnings are likely to be issued later this
evening.
MNZ064-065-073-074-082-091-220830-
/O.CON.KMPX.FA.A.0004.000000T0000Z-240622T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Yellow Medicine-Renville-Redwood-Brown-Watonwan-Martin-
Including the cities of Redwood Falls, New Ulm, Granite Falls, St
James, Fairmont, and Olivia
727 PM CDT Fri Jun 21 2024
...FLOOD WATCH REMAINS IN EFFECT UNTIL 7 AM CDT SATURDAY...
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of central, south central, southwest, and west
central Minnesota, including the following counties, in central
Minnesota, Renville. In south central Minnesota, Brown, Martin and
Watonwan. In southwest Minnesota, Redwood. In west central
Minnesota, Yellow Medicine.
* WHEN...Until 7 AM CDT Saturday.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Extensive street flooding and flooding of creeks and rivers are
possible.
* ADDITIONAL DETAILS...
- Saturated soils combined with additional very heavy rain
could result in flash flooding.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
MNZ059>063-066>070-075>078-083>085-092-093-WIZ023>026-028-220830-
/O.CON.KMPX.FA.A.0004.000000T0000Z-240622T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Wright-Hennepin-Anoka-Ramsey-Washington-McLeod-Sibley-Carver-
Scott-Dakota-Nicollet-Le Sueur-Rice-Goodhue-Blue Earth-Waseca-
Steele-Faribault-Freeborn-St. Croix-Pierce-Dunn-Pepin-Eau Claire-
Including the cities of Victoria, Albert Lea, Menomonie, Red
Wing, Minneapolis, Blaine, River Falls, Chanhassen, Waseca, Eau
Claire, Hastings, Blue Earth, Durand, Shakopee, Faribault,
Chaska, Gaylord, Hutchinson, Monticello, St Paul, Owatonna, Le
Sueur, St Peter, Mankato, Stillwater, and Hudson
727 PM CDT Fri Jun 21 2024
...FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY AFTERNOON...
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of Minnesota, including the following areas,
Anoka, Blue Earth, Carver, Dakota, Faribault, Freeborn, Goodhue,
Hennepin, Le Sueur, McLeod, Nicollet, Ramsey, Rice, Scott, Sibley,
Steele, Waseca, Washington and Wright and west central Wisconsin,
including the following areas, Dunn, Eau Claire, Pepin, Pierce and
St. Croix.
* WHEN...Through Saturday afternoon.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Extensive street flooding and flooding of creeks and rivers are
possible.
* ADDITIONAL DETAILS...
- Saturated soils combined with additional very heavy rain
could result in flash flooding.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
Borghoff796
WGUS63 KMPX 220214
FFAMPX
Flood Watch
National Weather Service Twin Cities/Chanhassen MN
914 PM CDT Fri Jun 21 2024
.Numerous thunderstorms are redeveloping this evening across
southern Minnesota and northern Iowa. Multiple storms may impact the
same areas already hard hit from earlier today. These locations
won't need more than a half inch to result in flash flooding. Slow
moving storms have the potential to drop 2 inches per hour.
Extensive and potentially life-threatening flash flooding is
possible. Additional Flash Flood Warnings are likely to be issued
later this evening.
MNZ059>063-066-068-WIZ023-025-220315-
/O.CAN.KMPX.FA.A.0004.000000T0000Z-240622T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Wright-Hennepin-Anoka-Ramsey-Washington-McLeod-Carver-St. Croix-
Dunn-
Including the cities of Victoria, Menomonie, Minneapolis, Blaine,
Chanhassen, Chaska, Hutchinson, Monticello, St Paul, Stillwater,
and Hudson
914 PM CDT Fri Jun 21 2024
...FLOOD WATCH IS CANCELLED...
The Flash Flood Watch is cancelled for portions of Minnesota,
including the following areas, Anoka, Carver, Hennepin, McLeod,
Ramsey, Washington and Wright and west central Wisconsin, including
the following areas, Dunn and St. Croix.
The flash flooding threat has ended. Heavy rain is expected to
remain south overnight. Therefore, the Flash Flood Watch is being
cancelled.
$$
MNZ064-065-220315-
/O.CAN.KMPX.FA.A.0004.000000T0000Z-240622T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Yellow Medicine-Renville-
Including the cities of Granite Falls and Olivia
914 PM CDT Fri Jun 21 2024
...FLOOD WATCH IS CANCELLED...
The Flash Flood Watch is cancelled for portions of central and west
central Minnesota, including the following areas, in central
Minnesota, Renville. In west central Minnesota, Yellow Medicine.
The flash flooding threat has ended. Heavy rain is expected to
remain south overnight. Therefore, the Flash Flood Watch is being
cancelled.
$$
MNZ073-074-082-091-221015-
/O.CON.KMPX.FA.A.0004.000000T0000Z-240622T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Redwood-Brown-Watonwan-Martin-
Including the cities of St James, Redwood Falls, Fairmont, and
New Ulm
914 PM CDT Fri Jun 21 2024
...FLOOD WATCH REMAINS IN EFFECT UNTIL 7 AM CDT SATURDAY...
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of south central and southwest Minnesota,
including the following counties, in south central Minnesota,
Brown, Martin and Watonwan. In southwest Minnesota, Redwood.
* WHEN...Until 7 AM CDT Saturday.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Extensive street flooding and flooding of creeks and rivers are
possible.
* ADDITIONAL DETAILS...
- Saturated soils combined with additional very heavy rain
could result in flash flooding.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
MNZ067-069-070-075>078-083>085-092-093-WIZ024-026-028-221015-
/O.CON.KMPX.FA.A.0004.000000T0000Z-240622T1800Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sibley-Scott-Dakota-Nicollet-Le Sueur-Rice-Goodhue-Blue Earth-
Waseca-Steele-Faribault-Freeborn-Pierce-Pepin-Eau Claire-
Including the cities of Owatonna, Blue Earth, Durand, Albert Lea,
Shakopee, Le Sueur, Faribault, Red Wing, St Peter, Gaylord,
Waseca, Eau Claire, Hastings, River Falls, and Mankato
914 PM CDT Fri Jun 21 2024
...FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY AFTERNOON...
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of Minnesota, including the following counties,
Blue Earth, Dakota, Faribault, Freeborn, Goodhue, Le Sueur,
Nicollet, Rice, Scott, Sibley, Steele and Waseca and west central
Wisconsin, including the following counties, Eau Claire, Pepin and
Pierce.
* WHEN...Through Saturday afternoon.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Extensive street flooding and flooding of creeks and rivers are
possible.
* ADDITIONAL DETAILS...
- Saturated soils combined with additional very heavy rain
could result in flash flooding.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
&&
$$
Borghoff223 WGUS63 KMPX 220938 FFAMPX Flood Watch National Weather Service Twin Cities/Chanhassen MN 438 AM CDT Sat Jun 22 2024 MNZ067-069-070-075>078-083>085-092-093-WIZ024-026-028-221045- /O.CAN.KMPX.FA.A.0004.000000T0000Z-240622T1800Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Sibley-Scott-Dakota-Nicollet-Le Sueur-Rice-Goodhue-Blue Earth- Waseca-Steele-Faribault-Freeborn-Pierce-Pepin-Eau Claire- Including the cities of Le Sueur, Durand, Faribault, Eau Claire, St Peter, Albert Lea, Mankato, Shakopee, Red Wing, Blue Earth, River Falls, Gaylord, Waseca, Owatonna, and Hastings 438 AM CDT Sat Jun 22 2024 ...FLOOD WATCH IS CANCELLED... The Flash Flood Watch is cancelled for portions of Minnesota, including the following areas, Blue Earth, Dakota, Faribault, Freeborn, Goodhue, Le Sueur, Nicollet, Rice, Scott, Sibley, Steele and Waseca and west central Wisconsin, including the following areas, Eau Claire, Pepin and Pierce. Heavy rainfall and flash flooding is no longer expected to pose a threat. However, overland and some river flooding remains around Mankato and along the Cannon and Straight Rivers, please continue to heed remaining road closures. $$ MNZ073-074-082-091-221045- /O.CAN.KMPX.FA.A.0004.000000T0000Z-240622T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Redwood-Brown-Watonwan-Martin- Including the cities of St James, Fairmont, New Ulm, and Redwood Falls 438 AM CDT Sat Jun 22 2024 ...FLOOD WATCH IS CANCELLED... The Flash Flood Watch is cancelled for portions of south central and southwest Minnesota, including the following areas, in south central Minnesota, Brown, Martin and Watonwan. In southwest Minnesota, Redwood. Heavy rainfall and flash flooding is no longer expected to pose a threat. However, overland and some river flooding remains, please continue to heed remaining road closures. $$ MPG
What forecasters said that day
The local office's own words before this flood watch 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 flood watch went out at Jun 20, 12:28 PM CDT, 2 hours 38 minutes earlier. Its key messages:
- Two excessive rainfall events are expected late tonight through Friday morning, with another Friday night into Saturday morning. If the heavy rainfall footprints from these two events overlap, we could see a high impact excessive rainfall event Friday night.
- Though heavy rainfall will be the main threat, the second wave Friday night will have the potential for a few severe thunderstorms, with large hail and damaging wind gusts from bowing line segments driving that severe risk.
- Going into next week, the weather pattern will become more progressive, but not necessarily dry. This means fronts will come and go as opposed to lingering for days on end.
Area forecast discussion, Jun 20, 12:28 PM CDT, 2 hours 38 minutes before
Area Forecast Discussion National Weather Service Twin Cities/Chanhassen MN 1228 PM CDT Thu Jun 20 2024 .KEY MESSAGES... - Two excessive rainfall events are expected late tonight through Friday morning, with another Friday night into Saturday morning. If the heavy rainfall footprints from these two events overlap, we could see a high impact excessive rainfall event Friday night. - Though heavy rainfall will be the main threat, the second wave Friday night will have the potential for a few severe thunderstorms, with large hail and damaging wind gusts from bowing line segments driving that severe risk. - Going into next week, the weather pattern will become more progressive, but not necessarily dry. This means fronts will come and go as opposed to lingering for days on end. && .DISCUSSION... Issued at 319 AM CDT Thu Jun 20 2024 Well, hopefully you all enjoyed our 24ish hours of dry weather yesterday, with our next stretch of wet weather already getting kicked off this morning across eastern SoDak into western MN. The main concern over the next couple of days will come in the form of two heavy rainfall events, late tonight into Friday morning, with a second, stronger wave for Friday night into Saturday morning. Each event on their own would likely not pose a significant excessive rainfall risk, but the concern is the potential for some overlap in the heavy rain footprints from the two events. If we are to see any overlap in the heavy rain footprints with these two events, then where that overlap occurs will have the potential for seeing a high impact excessive rainfall event Friday night. Starting off with the here an now, we've seen a saturated environment develop within a zone of upper level diffluence with the right entrance region of an upper jet up along the international border. We actually have mostly clear skies from south central into east central MN and western WI early this morning, which is associated with a drier airmass in these areas. This dry air will make it tough to get precip out of western MN through the day, so we did decrease PoPs today as you head toward southeast MN. The heavier precip will remain to our west through the day, with the LLJ expected to remain focused across Nebraska into south central SD. For tonight we'll see a weak shortwave eject out of the four corners region that will help to both strengthen and nudge the LLJ east through the night. Current expectations are that we'll see a cluster of storms develop this afternoon at the nose of the LLJ over central SoDak, with an elevated MCS riding the nose of the LLJ east through the night across southern MN. The severe risk looks pretty low with this round of precip as it's elevated nature will limit the strong wind potential, while limited instability keeps the hail threat in check as well. What it does look to do is put down a swath of heavy rain, likely a widespread 1-3", with amounts possibly pushing 5" if we see any training/repeated rounds of thunderstorms. Where exactly this swath of heavy rain falls is still uncertain. Within the 20.00 HREF you see this heavy rain getting dumped out as far south as between Sioux Falls and Sioux City (FV3), to as far north as Brookings, SD up toward Cambridge (NSSLwrf). The current forecast from WPC favors the HREF mean, with the heavy rain signal for tonight into Friday morning setting up from roughly Marshall over to the Twin Cities. How all of this activity impacts the environment for Friday in terms of the placement of the surface warm front and the location of thermal gradient up through h85 will determine where round 2 of heavy rain goes. With that said, when we see extreme weather patterns break, they tend to do so with an exclamation point. In the winter, this takes the form of a prolonged arctic outbreak ending with lows getting down to around -30F. In the summer, it's a heat wave breaking with a day or two with highs topping 100. Taking a step back and looking at the synoptic setup for Friday night, it certainly looks to have the potential to be that exclamation mark for this particularly wet pattern we've been in since this past weekend. Friday, a stronger shortwave will come out of Colorado, this will increase the strength of the LLJ and associated IVT/moisture transport. This with MUCAPE values in excess of 2000 j/kg in the warm sector feeding this LLJ with Pwats around 2" (climo max for this point in June) and you have all the large scale markers in place to support a high impact excessive rain event, it just comes down to where the mesoscale details setup. If we get lucky, the activity from tonight into Friday morning will help push round two farther south, keeping the worst of it off of the rainfall footprint from tonight. In a wost case scenario, we see an overlap of the second rounds heavy rainfall with the first. If this occurs, then the potential exists for a much more widespread and high impact excessive rainfall event Friday night. The Moderate Risk from the WPC day 2 excessive rain outlook highlights where this potential for doubling up on heavy rainfall events is greatest across south central MN, though WPC did mention that a further upgrade to a High risk of excessive rainfall is possible if it does look we will double up on heavy rain swaths tonight and Friday night. Though uncertainty remains on exactly where each heavy rain event will unfold, given the potential high end excessive rainfall impacts we have over the next couple of days, it will be important to keep up with any changes to the forecast for the next 48 hours. Although we've kind of brushed over the severe risk, it can't be ignored with that second wave. We'll see a very unstable environment develop Friday afternoon along the Neb/SD border (around 3000 j/kg of mlCAPE) ahead of the second shortwave coming at us for Friday night. This airmass will be advected into southern MN through the night with the LLJ and although we shouldn't see that degree of instability, 2000 j/kg of MUCAPE with 40 kts of 0-6km shear will certainly support the potential for some stronger updrafts capable of producing marginally severe hail, with the threat for bowing line segments supporting a wind threat as well. However, the severe risk looks to be more of a secondary threat Friday night when compared to the excessive rain potential. This weekend, we'll see the eastern ridge finally break down, which will allow the front coming through early in the day on Saturday to push east through the Great Lakes through the weekend. However, we will remain within the zone of active westerlies, which will translate into a still active, though this time progressive weather pattern. We're starting to see some agreement on when the next wave arrives, which is looking to be late in the day on Monday into Monday night, with the next wave in the ensembles showing up at the end of next week into the following weekend. Given the frequent frontal passages, we won't be able to build much heat this far north, with it looking increasingly likely that the Twin Cities will make it through June without seeing a high of 90 or warmer. If that happens, it will be the first time since 2014 (another very wet Spring/Summer) where we made it through June without seeing our first high of 90 or greater for the year. && .AVIATION /18Z TAFS THROUGH 18Z FRIDAY/... Issued at 1218 PM CDT Thu Jun 20 2024 Rain over SW MN this morning will eventually make it into the eastern MN and western WI by mid afternoon. Ceilings will start off VFR before becoming MVFR overnight. For EAU, there are MVFR cigs back over central WI that will erode before MVFR cigs from MN arrive tonight. This afternoon, thunderstorms will develop over SD, with a thunderstorm complex expected to move across southern MN overnight. Kept TEMPO TS groups in the 12z TAF. Besides TS potential, the MVFR/IFR cig potential will increase considerably overnight as the warm front push north across Iowa. KMSP...Light rain this afternoon with a break tonight before early morning TS chances, we will likely see cigs drop below 2k feet overnight and stay there thru Friday evening. /OUTLOOK FOR KMSP/ SAT...TSRA/IFR likely early, bmcg MVFR in aftn. Wind SW 10-15 kts becoming NW. SUN...VFR. Wind NW 10-20 kts. MON...VFR. Chc -TSRA/MVFR. Wind S 10 kts && .HYDROLOGY... Issued at 319 AM CDT Thu Jun 20 2024 Obviously, with the ongoing flooding, the last thing our rivers need is a couple of more heavy rain events tonight and Friday night. It should be stressed, that river forecasts from the NCRFC only include 24 hours of QPF in the forecast, which means the current river forecasts you see include very little of the of the rain we are expecting through Saturday (the river updates Thursday morning will start to include some of this additional rain). As a result, expect more movement in the crest forecasts until we get a better handle on how much and where precipitation falls through Saturday morning. The main impacts from this next round of rain is that first, we'll see crests occur later than currently forecast, with higher forecast levels possible as well, which isn't good news given all the points we're already forecasting to see moderate or major flooding. Given the latest WPC QPF, the basins that have the greatest concern for seeing crests higher than currently forecast are the Redwood, Cottonwood, Minnesota, Crow, and Mississippi from St. Paul on downstream. && .MPX WATCHES/WARNINGS/ADVISORIES... MN...None. WI...None. && DISCUSSION...MPG AVIATION...BPH HYDROLOGY...MPG
Hazardous weather outlook, Jun 20, 3:23 AM CDT, 11 hours 43 minutes before
Hazardous Weather Outlook National Weather Service Twin Cities/Chanhassen MN 323 AM CDT Thu Jun 20 2024 MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028- 210830- Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns- Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa- Kandiyohi-Meeker-Wright-Hennepin-Anoka-Ramsey-Washington- Yellow Medicine-Renville-McLeod-Sibley-Carver-Scott-Dakota- Redwood-Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth- Waseca-Steele-Martin-Faribault-Freeborn-Polk-Barron-Rusk- St. Croix-Pierce-Dunn-Pepin-Eau Claire- 323 AM CDT Thu Jun 20 2024 This Hazardous Weather Outlook is for portions of central and southern Minnesota, and west central Wisconsin. .DAY ONE...Today and Tonight. Showers and storms move into the area late tonight, with the main threats being heavy rainfall and flash flooding. Recent heavy rain will continue to result in water level rises along local rivers, with flooding continuing along the Crow and Minnesota Rivers. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Additional rounds of thunderstorms are expected Friday through Saturday. A few severe storms, heavy rainfall, and flash flooding are possible with each of these rounds. River levels will continue rising through late week with some locations reaching moderate or major flood stage. Additional rain could worsen the flooding. .SPOTTER INFORMATION STATEMENT... SKYWARN spotter activation will not be needed. Rainfall reports are appreciated. BED
In the hours before
Local storm report, Jun 20, 12:58 PM CDT, 2 hours 8 minutes before
Preliminary Local Storm Report
National Weather Service Twin Cities/Chanhassen MN
1258 PM CDT Thu Jun 20 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0410 PM Funnel Cloud Danvers 45.28N 95.75W
06/18/2024 Swift MN Trained Spotter
Time delayed LSR - Funnel cloud picture
provided via social media. Time estimated
via radar.
&&
RMDLocal storm report, Jun 20, 1:06 PM CDT, 2 hours before
Preliminary Local Storm Report
National Weather Service Twin Cities/Chanhassen MN
106 PM CDT Thu Jun 20 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0538 PM Funnel Cloud 1 NW Willmar 45.14N 95.07W
06/18/2024 Kandiyohi MN Storm Chaser
Time delayed LSR - Funnel cloud photo
provided via social media. Time estimated
via radar.
&&
RMDLocal storm report, Jun 20, 1:54 PM CDT, 1 hour 12 minutes before
Preliminary Local Storm Report
National Weather Service Twin Cities/Chanhassen MN
154 PM CDT Thu Jun 20 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0849 PM Tstm Wnd Dmg Hugo 45.17N 92.99W
06/18/2024 Washington MN Emergency Mngr
Time delayed LSR - Two trees down in the
town of Hugo reported by emergency
management. Time estimated via radar.
&&
RMDLocal storm report, Jun 20, 1:58 PM CDT, 1 hour 8 minutes before
Preliminary Local Storm Report
National Weather Service Twin Cities/Chanhassen MN
158 PM CDT Thu Jun 20 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0931 PM Tstm Wnd Dmg Afton 44.90N 92.78W
06/18/2024 Washington MN Emergency Mngr
Time delayed LSR - Two trees down in the
city of Afton reported by emergency
management. Time estimated via radar.
&&
RMDLocal storm report, Jun 20, 2:14 PM CDT, 52 minutes before
Preliminary Local Storm Report
National Weather Service Twin Cities/Chanhassen MN
214 PM CDT Thu Jun 20 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0940 PM Tstm Wnd Dmg 4 ESE St. Croix Falls 45.38N 92.56W
06/18/2024 Polk WI Public
Time delayed LSR - photos of several trees
down blocking roadways near the intersection
of 120 Ave and 198th St. Time estimated via
radar.
&&
RMDLocal storm report, Jun 20, 2:32 PM CDT, 34 minutes before
Preliminary Local Storm Report
National Weather Service Twin Cities/Chanhassen MN
232 PM CDT Thu Jun 20 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0917 PM Tstm Wnd Dmg 3 SE St. Croix Falls 45.38N 92.58W
06/18/2024 Polk WI Public
Time delayed LSR - photos of a roof damage
to a house and roof blown off silo near the
intersection of 120th Ave and 208th St. Time
estimated via radar.
&&
RMDNearby
Flood Watches in Minnesota, 2024Flood Watches in Wisconsin, 2024Every flood watch 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.