Alert archive / Minnesota / Flash Flood Warnings in 2016

Flash Flood Warning 12, NWS Twin Cities, MN

July 17, 20164 counties in Minnesota

NWS Twin Cities, MN issued this flash flood warning at Jul 17, 2016, 12:00 AM CDT for 4 counties in Minnesota. It was in force for 5 hr. 2 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 17, 2016, 12:00 AM CDT (05:00 UTC)
Expired
Jul 17, 2016, 5:00 AM CDT
In force
5 hr
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Flood severity
None

Counties Blue Earth County, MN, Faribault County, MN, Freeborn County, MN, Martin County, MN

The radar

The Minneapolis radar (KMPX), 133 km from the middle of the area, began a volume at 05:00 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 17, 12:28 AM CDTHEAVY RAIN 3.2Winnebago, MNWATER OVER THE CURB IN LOCAL CITY STREETS.
Jul 17, 4:48 AM CDTHEAVY RAIN 6.18Fairmont, MN.

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 00:00Z, 5.0 hours before the alert went out and 133 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 00:00Z on 2016-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 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 00:00Z on 2016-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 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
4 J/kg
Mixed-layer CIN
-246 J/kg
Mixed-layer LCL
1397 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
190 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

593 
WGUS53 KMPX 170500
FFWMPX
MNC013-043-047-091-171000-
/O.NEW.KMPX.FF.W.0012.160717T0500Z-160717T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1200 AM CDT SUN JUL 17 2016

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  MARTIN COUNTY IN SOUTH CENTRAL MINNESOTA...
  SOUTHWESTERN BLUE EARTH COUNTY IN SOUTH CENTRAL MINNESOTA...
  FREEBORN COUNTY IN SOUTH CENTRAL MINNESOTA...
  FARIBAULT COUNTY IN SOUTH CENTRAL MINNESOTA...

* UNTIL 500 AM CDT

* AT 1159 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. 3 TO 6 INCHES ARE LIKELY IN
  SOME AREAS OVERNIGHT. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ALBERT LEA...FAIRMONT...BLUE EARTH...WELLS...WINNEBAGO...
  SHERBURN...TRUMAN...TRIMONT...CLARKS GROVE...MINNESOTA LAKE...
  WELCOME AND ELMORE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 4350 9485 4385 9486 4385 9437 4399 9436
      4387 9390 4376 9305 4350 9305

$$

BORGHOFF
1 follow-up statement
991 
WGUS73 KMPX 170918
FFSMPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
418 AM CDT SUN JUL 17 2016

MNC013-043-047-091-170928-
/O.CAN.KMPX.FF.W.0012.000000T0000Z-160717T1000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MARTIN MN-BLUE EARTH MN-FREEBORN MN-FARIBAULT MN-
418 AM CDT SUN JUL 17 2016

...THE FLASH FLOOD WARNING FOR MARTIN...SOUTHWESTERN BLUE EARTH...
FREEBORN AND FARIBAULT COUNTIES IS CANCELLED...

THE HEAVY RAIN HAS ENDED AND ADDITIONAL FLOODING IS NOT EXPECTED.
PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.

LAT...LON 4350 9485 4385 9486 4385 9437 4399 9436
      4387 9390 4376 9305 4350 9305

$$

BORGHOFF

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 7:03 PM CDTSevere Thunderstorm WarningMPXLac qui Parle42 min
Jul 16, 7:31 PM CDTSevere Thunderstorm WarningMPXChippewa, Lac qui Parle, Renville, Yellow Medicine59 min
Jul 16, 8:04 PM CDTSevere Thunderstorm WarningMPXChippewa, Kandiyohi, Redwood, Renville, Yellow Medicine71 min
Jul 16, 8:35 PM CDTSevere Thunderstorm WarningMPXMcLeod, Meeker, Renville, Sibley55 min
Jul 16, 9:12 PM CDTSevere Thunderstorm WarningMPXBrown, Nicollet, Redwood63 min
Jul 16, 9:30 PM CDTSevere Thunderstorm WarningMPXMcLeod, Nicollet, Renville, Sibley60 min
Jul 16, 9:38 PM CDTSevere Thunderstorm WarningMPXStevens28 min
Jul 16, 9:53 PM CDTFlash Flood WatchMPXBlue Earth, Brown, Faribault, Freeborn, Martin, Nicollet and 4 more6 hr
Jul 16, 10:03 PM CDTSevere Thunderstorm WarningMPXBrown, Redwood57 min
Jul 16, 10:16 PM CDTSevere Thunderstorm WarningMPXBlue Earth, Brown, Watonwan44 min
Jul 16, 11:31 PM CDTFlash Flood WarningMPXBrown, Redwood, Watonwan4 hr

Nearby

Flash Flood Warnings in Minnesota, 2016Every flash flood warning in 2016

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.