Alert archive / Minnesota / Flash Flood Warnings in 2012

Flash Flood Warning 9, NWS Duluth, MN

June 20, 2012Carlton County, Saint Louis County, Minnesota; Douglas County, Wisconsin

NWS Duluth, MN issued this flash flood warning at Jun 20, 2012, 10:26 AM CDT for Carlton County, Saint Louis County, Minnesota; Douglas County, Wisconsin. It was in force for 12 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
Jun 20, 2012, 10:26 AM CDT (15:26 UTC)
Expired
Jun 20, 2012, 10:22 PM CDT
In force
12 hr
Issued by
NWS Duluth, MN
Area
Storm-based polygon
Flood severity
None

Counties Carlton County, MN, Saint Louis County, MN, Douglas County, WI

The radar

The Duluth radar (KDLH), 17 km from the middle of the area, began a volume at 15:29 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
Jun 20, 11:35 AM CDTFLOODEsko, MNIN MIDWAY TOWNSHIP, THE MIDWAY RIVER IS FLOODING ONTO MIDWAY ROAD...AND THE ROAD IS BEING WASHED OUT AT THIS TIME.
Jun 20, 11:56 AM CDTFLOODEsko, MNIN MIDWAY TOWNSHIP, MIDWAY ROAD IS WASHED OUT. THE BRIDGE IN NORTH CLOQUET AT MIDWAY RIVER IS WASHED OUT. LOCAL RAILROADS ARE UNUSABLE.
Jun 20, 2:15 PM CDTFLOODCarlton, MNPARTS OF THE CITY OF CARLTON NEAR THE THOMPSON RESEVOIR ARE BEING EVACUATED.
Jun 20, 2:50 PM CDTFLOODFond Du Lac, MNPORTION OF RIDGE RD WASHED OUT.
Jun 20, 6:24 PM CDTFLOODCarlton, MN1.5 TO 2 FEET OF WATER IN THE CENTER PART OF TOWN.

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

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 3.4 hours before the alert went out and 219 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, International Fa, MN at 12:00Z on 2012-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, International Fa, MN at 12:00Z on 2012-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -31 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
456 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
-31 m²/s²
0-3 km storm-relative helicity
40 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

370 
WGUS53 KDLH 201526
FFWDLH
MNC017-137-WIC031-210330-
/O.NEW.KDLH.FF.W.0009.120620T1526Z-120621T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DULUTH MN
1026 AM CDT WED JUN 20 2012

THE NATIONAL WEATHER SERVICE IN DULUTH MN HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN CARLTON COUNTY IN NORTHEAST MINNESOTA...
  NORTHWESTERN DOUGLAS COUNTY IN NORTHWEST WISCONSIN...
  SOUTH CENTRAL ST. LOUIS COUNTY IN NORTHEAST MINNESOTA...

* UNTIL 1030 PM CDT WEDNESDAY

* AT 1026 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED FLASH    
  FLOODING ACROSS THE WARNED AREA. THERE HAVE BEEN EVACUATIONS IN    
  THE FOND DU LAC AND THOMPSON NEIGHBORHOODS...AS WELL AS SPAFFORD   
  TRAILER PARK IN CLOQUET. 

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...CARLTON...
  CLOQUET...ESKO...FOND DU LAC...NEW DULUTH...OLIVER...PROCTOR...
  SCANLON AND THOMSON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE POSSIBLE IN THE 
WARNED AREA.

FLOOD WATERS ARE MOVING DOWN THE FROM THE HEADWATERS OF THE CLOQUET 
RIVER DUE TO EXCESSIVE RAINFALL FLOWING THROUGH THE ISLAND LAKE 
RESERVOIR. THAT FLOW WILL CAUSE SIGNIFICANT RISES DOWNSTREAM ALONG 
THE SAINT LOUIS RIVER...AND WILL LIKELY CAUSE FLOODING FOR ADJACENT 
AREAS ALONG THE SAINT LOUIS RIVER...INCLUDING CLOQUET...AS WELL AS 
THE THOMPSON AND FOND DU LAC NEIGHBORHOODS.

&&

LAT...LON 4661 9235 4664 9242 4670 9247 4674 9264
      4685 9255 4686 9247 4681 9241 4673 9218
      4676 9213 4674 9210 4667 9215 4663 9215
      4660 9225

$$

GROCHOCINKSI
1 follow-up statement
656 
WGUS73 KDLH 210322
FFSDLH

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE DULUTH MN
1022 PM CDT WED JUN 20 2012

MNC017-137-WIC031-210327-
/O.CAN.KDLH.FF.W.0009.000000T0000Z-120621T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CARLTON MN-ST. LOUIS MN-DOUGLAS WI-
1022 PM CDT WED JUN 20 2012

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR NORTHWESTERN
DOUGLAS...SOUTH CENTRAL ST. LOUIS AND NORTHEASTERN CARLTON COUNTIES 
IS BEING REPLACED BY A FLOOD WATCH...

EXCESS RUNOFF FROM HEAVY RAIN IS AND WILL PERSIST OVER THE WARNED 
AREA...RESULTING IN CONTINUED REMARKABLE AND RECORD BREAKING 
FLOODING OF THE ST LOUIS RIVER AND NEARBY CREEKS AND STREAMS. FOR 
EXAMPLE...THE ST LOUIS RIVER AT SCANLON...DETAILED IN A RECENTLY 
ISSUED RIVER FLOOD STATEMENT...IS AT A RECORD BREAKING LEVEL AND IS 
STILL CONTINUING TO RISE.  IF FLOODING HAS BEEN OBSERVED...PLEASE 
REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

AGAIN...THE FLASH FLOOD WARNING IS BEING REPLACED BY A FLOOD WARNING 
FOR THE AREA SINCE SPECTACULAR AND SIGNIFICANT FLOODING OF RIVERS... 
CREEKS AND STREAMS IS CONTINUING LONG AFTER TORRENTIAL RAIN HAS 
ENDED.

LAT...LON 4661 9235 4664 9242 4670 9247 4674 9264
      4685 9255 4686 9247 4681 9241 4673 9218
      4676 9213 4674 9210 4667 9215 4663 9215
      4660 9225

$$

EOM

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 7:04 PM CDTSpecial Weather StatementDLH11 min
Jun 19, 7:07 PM CDTSpecial Weather StatementDLHAitkin23 min
Jun 19, 7:08 PM CDTSpecial Marine WarningDLH43 min
Jun 19, 7:21 PM CDTFlash Flood WarningDLHCook, Lake5 hr
Jun 19, 8:01 PM CDTSpecial Marine WarningDLH59 min
Jun 19, 8:04 PM CDTAreal Flood AdvisoryDLHAitkin, Carlton, Crow Wing, Pine, Saint Louis4 hr
Jun 19, 8:14 PM CDTSpecial Weather StatementDLHCarlton16 min
Jun 19, 8:53 PM CDTSpecial Weather StatementDLHCrow Wing22 min
Jun 19, 8:58 PM CDTSpecial Marine WarningDLH41 min
Jun 19, 9:30 PM CDTAreal Flood AdvisoryDLHCass, Crow Wing3 hr
Jun 19, 9:41 PM CDTSpecial Weather StatementDLHAitkin, Crow Wing19 min
Jun 19, 11:34 PM CDTFlash Flood Warning EmergencyDLHCook, Lake, Saint Louis17 hr
Jun 20, 12:07 AM CDTAreal Flood WarningDLHAitkin, Carlton, Cass, Cook, Crow Wing, Itasca and 3 more12 hr
Jun 20, 12:26 AM CDTSpecial Marine WarningDLH94 min
Jun 20, 12:44 AM CDTSpecial Weather StatementDLHAitkin, Carlton61 min
Jun 20, 2:13 AM CDTSpecial Weather StatementDLHCarlton32 min
Jun 20, 2:54 AM CDTSpecial Weather StatementDLHAitkin, Pine51 min
Jun 20, 4:02 AM CDTSpecial Weather StatementDLHCarlton58 min
Jun 20, 4:31 AM CDTSpecial Weather StatementDLHCrow Wing59 min
Jun 20, 5:49 AM CDTSpecial Weather StatementDLHAitkin, Carlton, Crow Wing56 min
Jun 20, 8:30 AM CDTRiver Flood WarningDLHCarlton8 days
Jun 20, 9:45 AM CDTSpecial Weather StatementDLHPine45 min
Jun 20, 10:03 AM CDTSevere Thunderstorm WarningDLHAitkin, Pine42 min
Jun 20, 10:35 AM CDTSpecial Weather StatementDLHCarlton25 min
Jun 20, 10:36 AM CDTSevere Thunderstorm WarningDLHCarlton, Pine, Saint Louis39 min
Jun 20, 10:39 AM CDTSevere Thunderstorm WarningDLHSaint Louis36 min
Jun 20, 10:48 AM CDTSpecial Marine WarningDLH48 min
Jun 20, 11:51 AM CDTAreal Flood WarningDLHAitkin, Cass, Crow Wing, Itasca48 hr
Jun 20, 12:03 PM CDTSpecial Weather StatementDLHCook42 min
Jun 20, 12:08 PM CDTAreal Flood WarningDLHAitkin, Carlton, Cook, Itasca, Lake, Pine and 1 more48 hr
Jun 20, 12:08 PM CDTSpecial Marine WarningDLH52 min
Jun 20, 12:15 PM CDTSpecial Marine WarningDLH30 min
Jun 20, 4:24 PM CDTAreal Flood WarningDLHLake, Saint Louis48 hr
Jun 19, 8:36 PM CDTSpecial Weather StatementDLHDouglas24 min
Jun 19, 9:13 PM CDTSpecial Weather StatementDLHBayfield17 min
Jun 19, 11:25 PM CDTSpecial Weather StatementDLHDouglas50 min
Jun 20, 12:18 AM CDTAreal Flood WarningDLHAshland, Bayfield, Douglas12 hr
Jun 20, 2:08 AM CDTSpecial Weather StatementDLHAshland, Bayfield, Douglas67 min
Jun 20, 3:26 AM CDTSpecial Weather StatementDLHAshland, Bayfield, Douglas, Sawyer64 min
Jun 20, 11:16 AM CDTSpecial Weather StatementDLHAshland, Bayfield44 min
Jun 20, 2:19 PM CDTSpecial Weather StatementDLHAshland, Sawyer, Washburn56 min
Jun 20, 3:17 PM CDTSpecial Weather StatementDLHIron, Price, Sawyer43 min
Jun 20, 4:35 PM CDTSpecial Weather StatementDLHAshland, Iron, Sawyer55 min
Jun 20, 5:12 PM CDTSpecial Weather StatementDLHIron, Price63 min
Jun 20, 5:18 PM CDTSevere Thunderstorm WarningDLHPrice, Sawyer57 min
Jun 20, 5:30 PM CDTAreal Flood AdvisoryDLHAshland, Iron, Price, Sawyer3 hr

Nearby

Flash Flood Warnings in Minnesota, 2012Flash Flood Warnings in Wisconsin, 2012Every flash flood warning in 2012

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.