Alert archive / Wisconsin / Flash Flood Warnings in 2021

Flash Flood Warning 1, NWS Duluth, MN

June 10, 2021Iron County, Price County, Wisconsin

NWS Duluth, MN issued this flash flood warning at Jun 10, 2021, 6:08 PM CDT for Iron County, Price County, Wisconsin. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jun 10, 2021, 6:08 PM CDT (23:08 UTC)
Expired: Jun 10, 2021, 9:15 PM CDT
In force: 3 hr
Issued by: NWS Duluth, MN
Area: Storm-based polygon
Flood severity: None

Counties Iron County, WI, Price County, WI

The radar

The Duluth radar (KDLH), 182 km from the middle of the area, began a volume at 23:11 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

Green Bay/Straub, WI (KGRB), launched 12:00Z, 11.1 hours before the alert went out and 233 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 83 J/kg
Mixed-layer CIN: -163 J/kg
Mixed-layer LCL: 948 m above ground
0-6 km bulk shear: 3 kt
0-1 km storm-relative helicity: -21 m²/s²
0-3 km storm-relative helicity: 14 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

671 
WGUS53 KDLH 102308
FFWDLH
WIC051-099-110215-
/O.NEW.KDLH.FF.W.0001.210610T2308Z-210611T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Duluth MN
608 PM CDT Thu Jun 10 2021

The National Weather Service in Duluth has issued a

* Flash Flood Warning for...
  Northeastern Price County in north central Wisconsin...
  Southeastern Iron County in northwestern Wisconsin...

* Until 915 PM CDT.

* At 608 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Radar estimates between 2 and 3 
  inches of rain have fallen. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Park Falls, Turtle Flambeau Flowage, Fifield and Pike Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4598 9030 4606 9030 4607 9017 4600 8996
      4598 8997 4598 9004 4572 9005 4578 9031
      4587 9048 4592 9047 4598 9040

FLASH FLOOD...RADAR INDICATED

$$

Melde

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 10, 4:08 AM CDT	Heat Advisory	DLH	Burnett	15 hr
Jun 10, 1:45 PM CDT	Special Weather Statement	DLH	Bayfield	15 min
Jun 10, 3:32 PM CDT	Special Weather Statement	DLH	Bayfield	13 min
Jun 10, 3:38 PM CDT	Special Weather Statement	DLH	Douglas	22 min
Jun 10, 4:38 PM CDT	Special Weather Statement	DLH	Price	22 min
Jun 10, 4:52 PM CDT	Special Weather Statement	DLH	Iron	23 min
Jun 10, 5:02 PM CDT	Special Weather Statement	DLH	Price	28 min
Jun 10, 5:26 PM CDT	Special Weather Statement	DLH	Price	19 min
Jun 10, 5:36 PM CDT	Areal Flood Advisory	DLH	Ashland, Iron, Price	3 hr
Jun 10, 5:42 PM CDT	Special Weather Statement	DLH	Price	33 min
Jun 10, 5:52 PM CDT	Severe Thunderstorm Warning	DLH	Ashland, Iron, Price	23 min
Jun 10, 6:18 PM CDT	Special Weather Statement	DLH	Price	12 min
Jun 10, 6:25 PM CDT	Special Weather Statement	DLH	Price	20 min
Jun 10, 6:40 PM CDT	Special Weather Statement	DLH	Price	20 min
Jun 10, 6:47 PM CDT	Special Weather Statement	DLH	Iron	13 min

Nearby

Flash Flood Warnings in Wisconsin, 2021 Every flash flood warning in 2021

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.