Alert archive / Wisconsin / Flash Flood Warnings in 2018

Flash Flood Warning 11, NWS Duluth, MN

June 18, 2018Pine County, Minnesota; Burnett County, Douglas County, Wisconsin

NWS Duluth, MN issued this flash flood warning at Jun 18, 2018, 12:42 PM CDT for Pine County, Minnesota; Burnett County, Douglas County, Wisconsin. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 18, 2018, 12:42 PM CDT (17:42 UTC)
Expired: Jun 18, 2018, 6:30 PM CDT
In force: 6 hr
Issued by: NWS Duluth, MN
Area: Storm-based polygon
Flood severity: Unknown

Counties Pine County, MN, Burnett County, WI, Douglas County, WI

The radar

The Duluth radar (KDLH), 77 km from the middle of the area, began a volume at 17:40 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

Minneapolis, MN (KMPX), launched 12:00Z, 5.7 hours before the alert went out and 175 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: 1 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 492 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: -1 m²/s²
0-3 km storm-relative helicity: 98 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Duluth, MN wrote its last area forecast discussion before this flash flood warning went out at Jun 17, 3:50 PM CDT, 20 hours 52 minutes earlier.

Area forecast discussion, Jun 17, 3:50 PM CDT, 20 hours 52 minutes before

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Hazardous weather outlook, Jun 17, 5:11 PM CDT, 19 hours 31 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 18, 2:47 PM CDT	Areal Flood Warning	DLH	Carlton, Pine	31 hr
Jun 18, 6:29 PM CDT	Flash Flood Warning	DLH	Pine	17 hr
Jun 17, 7:10 PM CDT	Severe Thunderstorm Warning	DLH	Price	35 min

Nearby

Flash Flood Warnings in Wisconsin, 2018 Flash Flood Warnings in Minnesota, 2018 Every flash flood warning in 2018

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.