Alert archive / Minnesota / Flash Flood Warnings in 2019

Flash Flood Warning 17, NWS Twin Cities, MN

July 16, 2019Hennepin County, Ramsey County, Minnesota

NWS Twin Cities, MN issued this flash flood warning at Jul 16, 2019, 4:29 PM CDT for Hennepin County, Ramsey County, Minnesota. It was in force for 2 hr. 5 reports 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 16, 2019, 4:29 PM CDT (21:29 UTC)
Expired
Jul 16, 2019, 6:43 PM CDT
In force
2 hr
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Flood severity
None

Counties Hennepin County, MN, Ramsey County, MN

The radar

The Minneapolis radar (KMPX), 30 km from the middle of the area, began a volume at 21:31 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

TimeReportWhereRemark
Jul 16, 4:52 PM CDTFLASH FLOOD2 Wsw Minneapolis, MNFLASH FLOODING OCCURRING ON WB I-394 AT PENN AVE. REPORTED BY MNDOT.
Jul 16, 5:05 PM CDTFLASH FLOOD1 Ssw Minneapolis, MNMNDOT REPORTS FLASH FLOODING ON I-94 NEAR I-35W.
Jul 16, 5:05 PM CDTFLASH FLOOD3 E St. Louis Park, MNFLASH FLOODING ON LAKE STREET NEAR LAKE CALHOUN.
Jul 16, 5:30 PM CDTFLASH FLOOD3 Sw Minneapolis, MNNUMEROUS ROADS IN UPTOWN FLOODED.
Jul 16, 5:33 PM CDTHEAVY RAIN 2.353 Sw Minneapolis, MN2.35 INCHES OF RAIN IN 90 MINUTES.

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

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 9.5 hours before the alert went out and 32 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 2019-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 429 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 2019-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 102 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
429 J/kg
Mixed-layer CIN
-184 J/kg
Mixed-layer LCL
954 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
102 m²/s²
0-3 km storm-relative helicity
128 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted.

503 
WGUS53 KMPX 162129
FFWMPX
MNC053-123-170030-
/O.NEW.KMPX.FF.W.0017.190716T2129Z-190717T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Twin Cities/Chanhassen MN
429 PM CDT Tue Jul 16 2019

The National Weather Service in The Twin Cities has issued a

* Flash Flood Warning for...
  East central Hennepin County in east central Minnesota...
  Southwestern Ramsey County in east central Minnesota...

* Until 730 PM CDT.

* At 428 PM CDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Up to two inches of rain have
  already fallen. Flash flooding is expected to begin shortly.

* Some locations that will experience flooding include...
  Minneapolis, St. Paul, Edina, St. Louis Park, Roseville, Golden
  Valley, Hopkins, Falcon Heights, Univ Of Mn Minneapolis Campus,
  South Minneapolis and Mn State Fair.

Additional rainfall amounts of another inch or two are possible in 
the warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.

&&

LAT...LON 4500 9313 4494 9312 4492 9338 4498 9338
      4499 9326

$$

BORGHOFF
3 follow-up statements
589 
WGUS73 KMPX 162157
FFSMPX

Flash Flood Statement
National Weather Service Twin Cities/Chanhassen MN
457 PM CDT Tue Jul 16 2019

MNC053-123-170030-
/O.CON.KMPX.FF.W.0017.000000T0000Z-190717T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hennepin MN-Ramsey MN-
457 PM CDT Tue Jul 16 2019

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR
EAST CENTRAL HENNEPIN AND SOUTHWESTERN RAMSEY COUNTIES...

At 452 PM CDT, the Minnesota Department of Transportation reported 
flash flooding on I-394 at Penn Ave. 2 to 3 inches of rain have 
fallen with another inch possible. Flash flooding is occurring.

Some locations that will experience flooding include...
Minneapolis, St. Paul, Edina, St. Louis Park, Roseville, Golden
Valley, Hopkins, Falcon Heights, Univ Of Mn Minneapolis Campus, South
Minneapolis and Mn State Fair.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.

&&

LAT...LON 4500 9313 4494 9312 4492 9338 4498 9338
      4499 9326

$$

BORGHOFF
962 
WGUS73 KMPX 162257
FFSMPX

Flash Flood Statement
National Weather Service Twin Cities/Chanhassen MN
557 PM CDT Tue Jul 16 2019

MNC123-162306-
/O.CAN.KMPX.FF.W.0017.000000T0000Z-190717T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ramsey MN-
557 PM CDT Tue Jul 16 2019

...THE FLASH FLOOD WARNING FOR SOUTHWESTERN RAMSEY COUNTY IS
CANCELLED...

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

LAT...LON 4496 9321 4493 9320 4492 9338 4498 9338
      4499 9321

$$

MNC053-170030-
/O.CON.KMPX.FF.W.0017.000000T0000Z-190717T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hennepin MN-
557 PM CDT Tue Jul 16 2019

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 PM CDT FOR
EAST CENTRAL HENNEPIN COUNTY...

At 556 PM CDT, flash flooding continues in parts of the warned area. 
Numerous roads in Uptown Minneapolis are flooded. The rain has 
ended, but it will take some time for the water to drain away. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4496 9321 4493 9320 4492 9338 4498 9338
      4499 9321

$$

BORGHOFF
283 
WGUS73 KMPX 162343
FFSMPX

Flash Flood Statement
National Weather Service Twin Cities/Chanhassen MN
643 PM CDT Tue Jul 16 2019

MNC053-162352-
/O.CAN.KMPX.FF.W.0017.000000T0000Z-190717T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hennepin MN-
643 PM CDT Tue Jul 16 2019

...THE FLASH FLOOD WARNING FOR EAST CENTRAL HENNEPIN COUNTY IS
CANCELLED...

The heavy rain has ended and flood waters are receding, so the Flash 
Flood Warning has been cancelled. However, please continue to heed 
any remaining road closures and never drive through flooded roads.

LAT...LON 4496 9321 4493 9320 4492 9338 4498 9338
      4499 9321

$$

BORGHOFF

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 15, 7:08 PM CDTFlash Flood WarningMPXHennepin3 hr
Jul 15, 7:24 PM CDTFlash Flood WarningMPXDakota, Hennepin, Ramsey3 hr
Jul 15, 7:31 PM CDTSpecial Weather StatementMPXGoodhue59 min
Jul 15, 7:42 PM CDTSevere Thunderstorm WarningMPXDakota, Goodhue, Rice48 min
Jul 15, 7:49 PM CDTSpecial Weather StatementMPXBlue Earth, Rice, Waseca41 min
Jul 15, 7:54 PM CDTFlash Flood WarningMPXScott3 hr
Jul 15, 8:33 PM CDTSpecial Weather StatementMPXGoodhue27 min
Jul 15, 8:35 PM CDTSpecial Weather StatementMPXSteele, Waseca55 min
Jul 15, 9:01 PM CDTSpecial Weather StatementMPXBlue Earth, Rice29 min
Jul 15, 9:10 PM CDTTornado WarningMPXBlue Earth, Waseca35 min
Jul 15, 9:38 PM CDTSpecial Weather StatementMPXBlue Earth, Waseca52 min
Jul 15, 9:50 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Waseca40 min
Jul 16, 1:53 PM CDTSpecial Weather StatementMPXBlue Earth82 min
Jul 16, 3:52 PM CDTSpecial Weather StatementMPXRamsey83 min
Jul 16, 4:50 PM CDTSpecial Weather StatementMPXHennepin25 min

Nearby

Flash Flood Warnings in Minnesota, 2019Every flash flood warning in 2019

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.