Alert archive / Minnesota / Flash Flood Watches in 2018

Flash Flood Watch 2, NWS Twin Cities, MN

June 16, 201810 counties in Minnesota

NWS Twin Cities, MN issued this flash flood watch at Jun 16, 2018, 2:50 PM CDT for 10 counties in Minnesota. It took effect at Jun 16, 2018, 7:00 PM CDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Jun 16, 2018, 2:50 PM CDT (19:50 UTC)
In effect from
Jun 16, 2018, 7:00 PM CDT
Expired
Jun 17, 2018, 2:41 AM CDT
In force
8 hr
Issued by
NWS Twin Cities, MN
Flood severity
None

Counties Benton County, MN, Douglas County, MN, Kanabec County, MN, Mille Lacs County, MN, Morrison County, MN, Pope County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Todd County, MN

The radar

The Minneapolis radar (KMPX), 136 km from the middle of the area, began a volume at 19:53 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, 7.8 hours before the alert went out and 134 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 2018-06-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1431 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 2018-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 236 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
1431 J/kg
Mixed-layer CIN
-224 J/kg
Mixed-layer LCL
1126 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
236 m²/s²
0-3 km storm-relative helicity
360 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

073 
WGUS63 KMPX 161950
FFAMPX

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Twin Cities/Chanhassen MN
250 PM CDT Sat Jun 16 2018

...HEAVY RAINFALL MAY LEAD TO FLASH FLOODING TONIGHT...

.Multiple thunderstorms are expected to develop in a west to east
orientation and track over the same areas this evening. Several
inches of rain are possible where the thunderstorms develop,
leading to potential flash flooding.

MNZ041>045-047>050-055-170500-
/O.NEW.KMPX.FF.A.0002.180617T0000Z-180617T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns-
Benton-Swift-
Including the cities of Alexandria, Long Prairie, Little Falls, 
Princeton, Mora, Morris, Glenwood, St Cloud, Foley, and Benson
250 PM CDT Sat Jun 16 2018

...FLASH FLOOD WATCH IN EFFECT FROM 7 PM CDT THIS EVENING THROUGH
SUNDAY MORNING...

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

* Flash Flood Watch for portions of central Minnesota, east 
  central Minnesota, and west central Minnesota, including the 
  following areas, in central Minnesota, Benton, Morrison, 
  Stearns, and Todd. In east central Minnesota, Kanabec and 
  Mille Lacs. In west central Minnesota, Douglas, Pope, Stevens, 
  and Swift. 

* From 7 PM CDT this evening through Sunday morning.

* Very heavy rainfall associated with rounds of thunderstorms will
  lead to potential 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.

&&

$$

Borghoff
2 follow-up statements
849 
WGUS63 KMPX 170610
FFAMPX

Flood Watch
National Weather Service Twin Cities/Chanhassen MN
110 AM CDT Sun Jun 17 2018

...HEAVY RAINFALL MAY LEAD TO FLASH FLOODING TONIGHT...

.Multiple thunderstorms are expected to develop in a west to east
orientation and track over the same areas early this morning. 
Several inches of rain are possible where the thunderstorms 
develop, leading to potential flash flooding.

MNZ047>050-055-170715-
/O.CAN.KMPX.FF.A.0002.000000T0000Z-180617T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Stevens-Pope-Stearns-Benton-Swift-
Including the cities of Morris, Glenwood, St Cloud, Foley, 
and Benson
110 AM CDT Sun Jun 17 2018

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for portions of central Minnesota and west
central Minnesota has been cancelled. Widespread heavy rain is no
longer expected for portions of west central and central
Minnesota. Therefore, the Flash Flood Watch for Stevens, Pope,
Stearns, Benton and Swift counties has been cancelled.

$$

MNZ041>045-171200-
/O.CON.KMPX.FF.A.0002.000000T0000Z-180617T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Douglas-Todd-Morrison-Mille Lacs-Kanabec-
Including the cities of Alexandria, Long Prairie, Little Falls, 
Princeton, and Mora
110 AM CDT Sun Jun 17 2018

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

The Flash Flood Watch continues for

* Portions of central Minnesota, east central Minnesota, and 
  west central Minnesota, including the following areas, in 
  central Minnesota, Morrison and Todd. In east central 
  Minnesota, Kanabec and Mille Lacs. In west central Minnesota, 
  Douglas. 

* Until 7 AM CDT this morning

* Very heavy rainfall associated with rounds of thunderstorms will
  lead to potential 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.

&&

$$
092 
WGUS63 KMPX 170741
FFAMPX

Flood Watch
National Weather Service Twin Cities/Chanhassen MN
241 AM CDT Sun Jun 17 2018

...FLASH FLOOD WATCH IS CANCELLED...

.The Flash Flood Watch for portions of central Minnesota, east
central Minnesota, and west central Minnesota has been cancelled.
Widespread heavy rain is no longer expected through the rest of
this morning for portions of central Minnesota. Therefore, the 
Flash Flood Watch has been cancelled.

Additional heavy rainfall is possible late this afternoon into
this evening which may lead to isolated flooding concerns.

MNZ041>045-170845-
/O.CAN.KMPX.FF.A.0002.000000T0000Z-180617T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Douglas-Todd-Morrison-Mille Lacs-Kanabec-
Including the cities of Alexandria, Long Prairie, Little Falls, 
Princeton, and Mora
241 AM CDT Sun Jun 17 2018

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for portions of central Minnesota, east
central Minnesota, and west central Minnesota has been cancelled.

Widespread heavy rain is no longer expected through the rest of
this morning for portions of central Minnesota. Therefore, the 
Flash Flood Watch has been cancelled.

Additional heavy rainfall is possible late this afternoon into
this evening which may lead to isolated flooding concerns.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 16, 3:26 AM CDTSpecial Weather StatementMPXFaribault34 min
Jun 16, 3:44 AM CDTSevere Thunderstorm WarningMPXBlue Earth, Faribault, Freeborn, Waseca31 min
Jun 16, 4:56 AM CDTSpecial Weather StatementMPXBlue Earth, Steele, Waseca64 min
Jun 16, 6:08 AM CDTSpecial Weather StatementMPXBlue Earth, Faribault, Le Sueur, Martin, Watonwan67 min
Jun 16, 6:11 AM CDTSpecial Weather StatementMPXGoodhue64 min
Jun 16, 8:05 AM CDTSpecial Weather StatementMPXCarver, Hennepin, Ramsey, Washington55 min
Jun 16, 8:11 AM CDTSevere Thunderstorm WarningMPXDouglas49 min
Jun 16, 10:30 AM CDTRiver Flood WarningMPXCarver6 days

Nearby

Flash Flood Watches in Minnesota, 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.