Alert archive / Minnesota / Flash Flood Warnings in 2016

Flash Flood Warning 8, NWS Twin Cities, MN

July 11, 20164 counties in Minnesota

NWS Twin Cities, MN issued this flash flood warning at Jul 11, 2016, 7:32 PM CDT for 4 counties in Minnesota. It was in force for 4 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 11, 2016, 7:32 PM CDT (00:32 UTC)
Expired
Jul 11, 2016, 11:30 PM CDT
In force
4 hr
Issued by
NWS Twin Cities, MN
Area
Storm-based polygon
Flood severity
None

Counties Benton County, MN, Morrison County, MN, Sherburne County, MN, Stearns County, MN

The radar

The Minneapolis radar (KMPX), 100 km from the middle of the area, began a volume at 00:34 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 11, 8:00 PM CDTHEAVY RAIN 5Sauk Rapids, MNREPORTED VIA TWITTER. .
Jul 11, 8:00 PM CDTHEAVY RAIN 5.51 N Sartell, MNREPORTED VIA TWITTER. RAINFALL SINCE 7 AM. .

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, 0.5 hours before the alert went out and 98 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 2016-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2508 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 2016-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 249 square meters per square second.19395878Sfc1 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
2508 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1167 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
249 m²/s²
0-3 km storm-relative helicity
393 m²/s²
Significant tornado parameter
2.9
Supercell composite
26.2

Open this sounding in Storm Lab

The text

As transmitted.

351 
WGUS53 KMPX 120032
FFWMPX
MNC009-097-141-145-120430-
/O.NEW.KMPX.FF.W.0008.160712T0032Z-160712T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
732 PM CDT MON JUL 11 2016

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN STEARNS COUNTY IN CENTRAL MINNESOTA...
  NORTHWESTERN SHERBURNE COUNTY IN CENTRAL MINNESOTA...
  SOUTHEASTERN MORRISON COUNTY IN CENTRAL MINNESOTA...
  BENTON COUNTY IN CENTRAL MINNESOTA...

* UNTIL 1130 PM CDT

* AT 731 PM CDT...DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED
  THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. UP TO
  THREE INCHES OF RAIN HAVE ALREADY FALLEN. FLASH FLOODING IS
  EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ST. CLOUD...SAUK RAPIDS...WAITE PARK...ST. JOSEPH...COLD SPRING...
  COLLEGEVILLE...FOLEY...ALBANY...ROCKVILLE...RICHMOND...AVON AND
  ROYALTON.

ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE POSSIBLE IN THE
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

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 4583 9385 4562 9378 4548 9406 4533 9449
      4546 9468 4556 9471 4583 9437

$$

CCS
2 follow-up statements
037 
WGUS73 KMPX 120333
FFSMPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1033 PM CDT MON JUL 11 2016

MNC097-120343-
/O.CAN.KMPX.FF.W.0008.000000T0000Z-160712T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MORRISON MN-
1033 PM CDT MON JUL 11 2016

...THE FLASH FLOOD WARNING FOR SOUTHEASTERN MORRISON COUNTY IS
CANCELLED...

FLOODING IS NO LONGER EXPECTED TO POSE A THREAT. PLEASE CONTINUE TO
HEED ANY REMAINING ROAD CLOSURES.

LAT...LON 4562 9378 4547 9408 4539 9432 4545 9441
      4559 9441 4582 9417 4582 9385

$$

MNC009-141-145-120430-
/O.CON.KMPX.FF.W.0008.000000T0000Z-160712T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
STEARNS MN-SHERBURNE MN-BENTON MN-
1033 PM CDT MON JUL 11 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1130 PM CDT FOR
EASTERN STEARNS...NORTHWESTERN SHERBURNE AND BENTON COUNTIES...

AT 1033 PM CDT...DOPPLER RADAR AND AUTOMATED RAIN GAUGES INDICATED
THUNDERSTORMS PRODUCING HEAVY RAIN OVER THE WARNED AREA. UP TO THREE
INCHES OF RAIN HAVE ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO
BEGIN SHORTLY.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ST. CLOUD...SAUK RAPIDS...WAITE PARK...ST. JOSEPH...COLD SPRING...
COLLEGEVILLE...FOLEY...ROCKVILLE...RICE...GRANITE LEDGE...
LUXEMBURG AND GILMAN.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

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

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.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 4562 9378 4547 9408 4539 9432 4545 9441
      4559 9441 4582 9417 4582 9385

$$

JPC
809 
WGUS73 KMPX 120421
FFSMPX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1121 PM CDT MON JUL 11 2016

MNC009-141-145-120431-
/O.EXP.KMPX.FF.W.0008.000000T0000Z-160712T0430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
STEARNS MN-SHERBURNE MN-BENTON MN-
1121 PM CDT MON JUL 11 2016

...THE FLASH FLOOD WARNING FOR EASTERN STEARNS...NORTHWESTERN
SHERBURNE AND BENTON COUNTIES WILL EXPIRE AT 1130 PM CDT...

THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO POSE
A THREAT. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.

LAT...LON 4562 9378 4547 9408 4539 9432 4545 9441
      4559 9441 4582 9417 4582 9385

$$

JPC

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 11, 7:00 PM CDTTornado WarningMPXKandiyohi, Meeker, Stearns30 min
Jul 11, 7:09 PM CDTTornado WarningMPXBenton36 min
Jul 11, 7:16 PM CDTTornado WarningMPXStearns29 min
Jul 11, 7:37 PM CDTTornado WarningMPXBenton, Sherburne, Stearns23 min
Jul 11, 8:05 PM CDTFlash Flood WarningMPXBenton, Kanabec, Mille Lacs, Morrison4 hr
Jul 11, 8:22 PM CDTSpecial Weather StatementMPXSherburne38 min
Jul 11, 8:44 PM CDTSevere Thunderstorm WarningMPXSherburne, Wright31 min
Jul 11, 8:50 PM CDTTornado WarningMPXSherburne25 min
Jul 11, 9:00 PM CDTTornado WarningMPXSherburne11 min
Jul 11, 11:12 PM CDTSpecial Weather StatementMPXFreeborn33 min
Jul 11, 11:19 PM CDTSpecial Weather StatementMPXDouglas41 min
Jul 11, 11:49 PM CDTFlash Flood WarningMPXAnoka, Chisago, Isanti3 hr
Jul 12, 12:43 AM CDTSpecial Weather StatementMPXBlue Earth47 min
Jul 12, 10:39 AM CDTAreal Flood WarningMPXBenton, Kanabec, Mille Lacs4 days

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.