Alert archive / Minnesota / Flash Flood Watches in 2018

Flash Flood Watch 3, NWS Twin Cities, MN

June 17, 20189 counties in Wisconsin; 12 counties in Minnesota

NWS Twin Cities, MN issued this flash flood watch at Jun 17, 2018, 2:44 PM CDT for 9 counties in Wisconsin; 12 counties in Minnesota. It took effect at Jun 17, 2018, 4:00 PM CDT. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued
Jun 17, 2018, 2:44 PM CDT (19:44 UTC)
In effect from
Jun 17, 2018, 4:00 PM CDT
Expired
Jun 18, 2018, 7:00 AM CDT
In force
15 hr
Issued by
NWS Twin Cities, MN
Flood severity
None
All 21 counties

Anoka County, MN, Chisago County, MN, Dakota County, MN, Goodhue County, MN, Hennepin County, MN, Isanti County, MN, Kanabec County, MN, Mille Lacs County, MN, Ramsey County, MN, Sherburne County, MN, Washington County, MN, Wright County, MN, Barron County, WI, Chippewa County, WI, Dunn County, WI, Eau Claire County, WI, Pepin County, WI, Pierce County, WI, Polk County, WI, Rusk County, WI, Saint Croix County, WI

The radar

The Minneapolis radar (KMPX), 78 km from the middle of the area, began a volume at 19:50 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, 7.7 hours before the alert went out and 80 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-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 2018-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1067 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2018-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 181 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1067 J/kg
Mixed-layer CIN
-128 J/kg
Mixed-layer LCL
1089 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
181 m²/s²
0-3 km storm-relative helicity
175 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.4

Open this sounding in Storm Lab

The text

As transmitted.

824 
WGUS63 KMPX 171944
FFAMPX

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Twin Cities/Chanhassen MN
244 PM CDT Sun Jun 17 2018

...HEAVY RAINFALL MAY PRODUCE FLASH FLOODING LATE THIS AFTERNOON
AND TONIGHT...

.Multiple thunderstorms are expected over portions of west central
Wisconsin, as well as east central, central and southeast  
Minnesota this afternoon. They will persist into this evening and
the late night hours. Several inches of rain are possible, 
leading to potential flash flooding.

MNZ044-045-051>053-059>063-070-078-WIZ014>016-023>028-180345-
/O.NEW.KMPX.FF.A.0003.180617T2100Z-180618T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mille Lacs-Kanabec-Sherburne-Isanti-Chisago-Wright-Hennepin-Anoka-
Ramsey-Washington-Dakota-Goodhue-Polk-Barron-Rusk-St. Croix-
Pierce-Dunn-Pepin-Chippewa-Eau Claire-
Including the cities of Princeton, Mora, Elk River, Cambridge, 
Center City, Monticello, Minneapolis, Blaine, St Paul, 
Stillwater, Hastings, Red Wing, Osceola, Rice Lake, Ladysmith, 
Hudson, River Falls, Prescott, Menomonie, Durand, Chippewa Falls,
and Eau Claire
244 PM CDT Sun Jun 17 2018

...FLASH FLOOD WATCH IN EFFECT THROUGH MONDAY MORNING...

The National Weather Service in Twin Cities/Chanhassen has issued
a

* Flash Flood Watch for portions of Minnesota and Wisconsin, 
  including the following areas, in Minnesota, Anoka, Chisago, 
  Dakota, Goodhue, Hennepin, Isanti, Kanabec, Mille Lacs, 
  Ramsey, Sherburne, Washington, and Wright. In Wisconsin, 
  Barron, Chippewa, Dunn, Eau Claire, Pepin, Pierce, Polk, Rusk, 
  and St. Croix. 

* Through Monday morning

* Very heavy rainfall associated with several rounds of
  thunderstorms may lead to flash flooding. Localized rainfall 
  totals of 3 to 5 inches are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$
6 follow-up statements
458 
WGUS63 KMPX 172235
FFAMPX

Flood Watch
National Weather Service Twin Cities/Chanhassen MN
535 PM CDT Sun Jun 17 2018

...HEAVY RAINFALL MAY PRODUCE FLASH FLOODING THIS EVENING AND 
TONIGHT...

.Multiple thunderstorms are expected to persist into this evening
and the late night hours. Several inches of rain are possible, 
leading to potential flash flooding.

MNZ044-045-051-052-059-172345-
/O.CAN.KMPX.FF.A.0003.000000T0000Z-180618T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mille Lacs-Kanabec-Sherburne-Isanti-Wright-
Including the cities of Princeton, Mora, Elk River, Cambridge, 
and Monticello
535 PM CDT Sun Jun 17 2018

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for portions of central Minnesota and east
central Minnesota has been cancelled. Showers and thunderstorms
have exited the region.

$$

MNZ053-060>063-070-078-WIZ014>016-023>028-180645-
/O.CON.KMPX.FF.A.0003.000000T0000Z-180618T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Chisago-Hennepin-Anoka-Ramsey-Washington-Dakota-Goodhue-Polk-
Barron-Rusk-St. Croix-Pierce-Dunn-Pepin-Chippewa-Eau Claire-
Including the cities of Center City, Minneapolis, Blaine, 
St Paul, Stillwater, Hastings, Red Wing, Osceola, Rice Lake, 
Ladysmith, Hudson, River Falls, Prescott, Menomonie, Durand, 
Chippewa Falls, and Eau Claire
535 PM CDT Sun Jun 17 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY MORNING...

The Flash Flood Watch continues for

* Portions of Minnesota and Wisconsin, including the following 
  areas, in Minnesota, Anoka, Chisago, Dakota, Goodhue, 
  Hennepin, Ramsey, and Washington. In Wisconsin, Barron, 
  Chippewa, Dunn, Eau Claire, Pepin, Pierce, Polk, Rusk, and St. 
  Croix. 

* Through Monday morning

* Very heavy rainfall associated with several rounds of 
  thunderstorms may lead to flash flooding. Localized rainfall 
  totals of 3 to 5 inches are possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

jrb
254 
WGUS63 KMPX 172346
FFAMPX

Flood Watch
National Weather Service Twin Cities/Chanhassen MN
646 PM CDT Sun Jun 17 2018

...HEAVY RAINFALL MAY PRODUCE FLASH FLOODING THIS EVENING AND
TONIGHT...

.Multiple thunderstorms are expected to persist into this evening
and the late night hours. Several inches of rain are possible,
leading to potential flash flooding.

MNZ053-060>062-180100-
/O.CAN.KMPX.FF.A.0003.000000T0000Z-180618T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Chisago-Hennepin-Anoka-Ramsey-
Including the cities of Center City, Minneapolis, Blaine, 
and St Paul
646 PM CDT Sun Jun 17 2018

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for a portion of east central Minnesota has
been cancelled. The heavy rain threat has ended.

$$

MNZ063-070-078-WIZ014>016-023>028-180800-
/O.CON.KMPX.FF.A.0003.000000T0000Z-180618T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Washington-Dakota-Goodhue-Polk-Barron-Rusk-St. Croix-Pierce-Dunn-
Pepin-Chippewa-Eau Claire-
Including the cities of Stillwater, Hastings, Red Wing, Osceola, 
Rice Lake, Ladysmith, Hudson, River Falls, Prescott, Menomonie, 
Durand, Chippewa Falls, and Eau Claire
646 PM CDT Sun Jun 17 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH MONDAY MORNING...

The Flash Flood Watch continues for

* Portions of Minnesota and Wisconsin, including the following 
  areas, in Minnesota, Dakota, Goodhue, and Washington. In 
  Wisconsin, Barron, Chippewa, Dunn, Eau Claire, Pepin, Pierce, 
  Polk, Rusk, and St. Croix. 

* Through Monday morning

* Very heavy rainfall associated with several rounds of
  thunderstorms may lead to flash flooding. Localized rainfall
  totals of 1 to 3 inches are possible. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

jrb
476 
WGUS63 KMPX 180323
FFAMPX

Flood Watch
National Weather Service Twin Cities/Chanhassen MN
1023 PM CDT Sun Jun 17 2018

...HEAVY RAINFALL MAY PRODUCE FLASH FLOODING THIS EVENING AND
TONIGHT...

.Multiple thunderstorms are expected to persist into the late 
night hours. Several inches of rain are possible, leading to 
potential flash flooding.

WIZ014>016-180430-
/O.CAN.KMPX.FF.A.0003.000000T0000Z-180618T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Polk-Barron-Rusk-
Including the cities of Osceola, Rice Lake, and Ladysmith
1023 PM CDT Sun Jun 17 2018

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for a portion of northwest Wisconsin has
been cancelled. The heavy rain threat has ended.

$$

MNZ063-070-078-WIZ023>028-181130-
/O.CON.KMPX.FF.A.0003.000000T0000Z-180618T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Washington-Dakota-Goodhue-St. Croix-Pierce-Dunn-Pepin-Chippewa-
Eau Claire-
Including the cities of Stillwater, Hastings, Red Wing, Hudson, 
River Falls, Prescott, Menomonie, Durand, Chippewa Falls, 
and Eau Claire
1023 PM CDT Sun Jun 17 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 AM CDT MONDAY...

The Flash Flood Watch continues for

* Portions of Minnesota and west central Wisconsin, including 
  the following areas, in Minnesota, Dakota, Goodhue, and 
  Washington. In west central Wisconsin, Chippewa, Dunn, Eau 
  Claire, Pepin, Pierce, and St. Croix. 

* Until 7 AM CDT Monday

* Very heavy rainfall associated with several rounds of 
  thunderstorms may lead to flash flooding. Localized rainfall 
  totals of 1 to 3 inches are possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$

jrb
398 
WGUS63 KMPX 180758
FFAMPX

Flood Watch
National Weather Service Twin Cities/Chanhassen MN
258 AM CDT Mon Jun 18 2018

...HEAVY RAINFALL MAY PRODUCE FLASH FLOODING EARLY THIS MORNING... 

.Multiple rounds thunderstorms containing moderate to heavy rain 
are expected to persist through the early morning hours. Several 
inches of rain are possible, leading to potential flash flooding.

MNZ063-WIZ023-180900-
/O.CAN.KMPX.FF.A.0003.000000T0000Z-180618T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Washington-St. Croix-
Including the cities of Stillwater and Hudson
258 AM CDT Mon Jun 18 2018

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for portions of east central Minnesota and
west central Wisconsin has been cancelled. Heavy rainfall and
hence widespread flooding is no longer expected in Washington and
St. Croix counties. While periods of light to moderate rain will 
continue through the early morning hours, this is not expected to 
lead to flooding. Therefore, the Flash Flood Watch for Washington 
and St. Croix counties has been cancelled.

$$

MNZ070-078-WIZ024>028-181200-
/O.CON.KMPX.FF.A.0003.000000T0000Z-180618T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dakota-Goodhue-Pierce-Dunn-Pepin-Chippewa-Eau Claire-
Including the cities of Hastings, Red Wing, River Falls, 
Prescott, Menomonie, Durand, Chippewa Falls, and Eau Claire
258 AM CDT Mon Jun 18 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 AM CDT THIS
MORNING...

The Flash Flood Watch continues for

* Portions of Minnesota and west central Wisconsin, including 
  the following areas, in Minnesota, Dakota and Goodhue. In west 
  central Wisconsin, Chippewa, Dunn, Eau Claire, Pepin, and 
  Pierce. 

* Until 7 AM CDT this morning

* Very heavy rainfall associated with several rounds of 
  thunderstorms may lead to flash flooding. Localized rainfall 
  totals of 1 to 3 inches are possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$
308 
WGUS63 KMPX 180942
FFAMPX

Flood Watch
National Weather Service Twin Cities/Chanhassen MN
442 AM CDT Mon Jun 18 2018

...HEAVY RAINFALL MAY PRODUCE FLASH FLOODING EARLY THIS MORNING...

.Multiple rounds thunderstorms containing moderate to heavy rain
are expected to persist through the early morning hours. Several
inches of rain are possible, leading to potential flash flooding.

MNZ070-078-WIZ024-025-181045-
/O.CAN.KMPX.FF.A.0003.000000T0000Z-180618T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Dakota-Goodhue-Pierce-Dunn-
Including the cities of Hastings, Red Wing, River Falls, 
Prescott, and Menomonie
442 AM CDT Mon Jun 18 2018

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for portions of Minnesota and west central
Wisconsin has been cancelled. Heavy rainfall and hence widespread
flooding is no longer expected in Dakota, Goodhue, Pierce and Dunn 
counties. While periods of light to moderate rain will continue 
through the early morning hours, this is not expected to lead to 
flooding. Therefore, the Flash Flood Watch for Dakota, Goodhue,
Pierce and Dunn counties has been cancelled.

$$

WIZ026>028-181200-
/O.CON.KMPX.FF.A.0003.000000T0000Z-180618T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pepin-Chippewa-Eau Claire-
Including the cities of Durand, Chippewa Falls, and Eau Claire
442 AM CDT Mon Jun 18 2018

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 AM CDT THIS
MORNING...

The Flash Flood Watch continues for

* A portion of west central Wisconsin, including the following 
  areas, Chippewa, Eau Claire, and Pepin. 

* Until 7 AM CDT this morning

* Heavy rainfall associated with several rounds of thunderstorms
  may lead to flash flooding. Additional rainfall totals of 1 to 2 
  inches are possible. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$
921 
WGUS63 KMPX 181150
FFAMPX

Flood Watch
National Weather Service Twin Cities/Chanhassen MN
650 AM CDT Mon Jun 18 2018

...FLASH FLOOD WATCH WILL EXPIRE AT 7 AM CDT THIS MORNING...

.The Flash Flood Watch for a portion of west central Wisconsin
will expire at 7 AM CDT this morning. Heavy rainfall and hence
widespread flooding is no longer expected in Pepin, Chippewa and
Eau Claire counties. While periods of light to moderate rain will
continue through the morning hours, this is not expected to lead 
to flooding. Therefore, the Flash Flood Watch for Pepin, Chippewa
and Eau Claire counties has been allowed to expire.

WIZ026>028-181300-
/O.EXP.KMPX.FF.A.0003.000000T0000Z-180618T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Pepin-Chippewa-Eau Claire-
Including the cities of Durand, Chippewa Falls, and Eau Claire
650 AM CDT Mon Jun 18 2018

...FLASH FLOOD WATCH WILL EXPIRE AT 7 AM CDT THIS MORNING...

The Flash Flood Watch for a portion of west central Wisconsin
will expire at 7 AM CDT this morning. Heavy rainfall and hence
widespread flooding is no longer expected in Pepin, Chippewa and
Eau Claire counties. While periods of light to moderate rain will
continue through the morning hours, this is not expected to lead 
to flooding. Therefore, the Flash Flood Watch for Pepin, Chippewa
and Eau Claire counties has been allowed to expire.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 17, 4:09 PM CDTSevere Thunderstorm WarningMPXChippewa, Eau Claire24 min
Jun 17, 5:13 PM CDTSevere Thunderstorm WarningMPXChippewa47 min
Jun 17, 5:32 PM CDTSevere Thunderstorm WarningMPXBarron, Polk43 min
Jun 17, 6:16 PM CDTSevere Thunderstorm WarningMPXBarron, Chippewa, Dunn, Rusk44 min
Jun 16, 7:16 PM CDTSpecial Weather StatementMPXLac qui Parle44 min
Jun 16, 8:48 PM CDTSpecial Weather StatementMPXChippewa, Kandiyohi, Pope27 min
Jun 16, 9:23 PM CDTSpecial Weather StatementMPXStearns37 min
Jun 16, 10:02 PM CDTSpecial Weather StatementMPXDouglas58 min
Jun 16, 10:12 PM CDTSevere Thunderstorm WarningMPXPope, Stearns33 min
Jun 16, 10:29 PM CDTSpecial Weather StatementMPXStevens31 min
Jun 16, 10:54 PM CDTSpecial Weather StatementMPXTodd36 min
Jun 16, 11:16 PM CDTSpecial Weather StatementMPXPope, Todd29 min
Jun 16, 11:37 PM CDTSevere Thunderstorm WarningMPXMorrison, Todd23 min
Jun 17, 12:22 PM CDTSevere Thunderstorm WarningMPXMorrison, Todd38 min
Jun 17, 1:37 PM CDTSpecial Weather StatementMPXMille Lacs8 min
Jun 17, 1:47 PM CDTSpecial Weather StatementMPXMille Lacs43 min
Jun 17, 2:25 PM CDTTornado WarningMPXKanabec35 min
Jun 17, 6:59 PM CDTSpecial Weather StatementMPXScott31 min

Nearby

Flash Flood Watches in Minnesota, 2018Flash Flood Watches in Wisconsin, 2018Every flash flood watch in 2018

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.