Alert archive / Wisconsin / Flash Flood Warnings in 2025

Flash Flood Warning 4, NWS Duluth, MN

July 4, 2025Burnett County, Washburn County, Wisconsin

NWS Duluth, MN issued this flash flood warning at Jul 4, 2025, 4:12 AM CDT for Burnett County, Washburn 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 counties it named.

The facts

Issued
Jul 4, 2025, 4:12 AM CDT (09:12 UTC)
Expired
Jul 4, 2025, 7:15 AM CDT
In force
3 hr
Issued by
NWS Duluth, MN
Area
Storm-based polygon
Flood severity
None

Counties Burnett County, WI, Washburn County, WI

The radar

The Duluth radar (KDLH), 107 km from the middle of the area, began a volume at 09:16 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 00:00Z, 9.2 hours before the alert went out and 165 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 2025-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3052 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 00:00Z on 2025-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 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
3052 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
1329 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
312 m²/s²
Significant tornado parameter
2.1
Supercell composite
17.6

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 4, 1:25 AM CDTSevere Thunderstorm WarningDLHPine35 min
Jul 4, 2:47 AM CDTExtreme Heat WarningDLHAitkin, Carlton, Cass, Crow Wing, Itasca, Koochiching and 2 more17 hr
Jul 4, 2:58 AM CDTFlood WatchDLHAitkin, Carlton, Cass, Cook, Crow Wing, Itasca and 3 more31 hr
Jul 4, 5:43 AM CDTSpecial Marine WarningDLH32 min
Jul 4, 9:04 AM CDTSevere Thunderstorm WarningDLHCook26 min
Jul 4, 1:06 PM CDTSevere Thunderstorm Warning Considerable damage threatDLHKoochiching39 min
Jul 4, 1:43 PM CDTSevere Thunderstorm Warning Considerable damage threatDLHKoochiching47 min
Jul 4, 2:33 PM CDTSevere Thunderstorm WarningDLHKoochiching42 min
Jul 4, 3:04 PM CDTSevere Thunderstorm Warning Destructive damage threatDLHKoochiching, Saint Louis56 min
Jul 4, 3:09 PM CDTSevere Thunderstorm WarningDLHKoochiching, Saint Louis66 min
Jul 4, 3:32 PM CDTAreal Flood AdvisoryDLHKoochiching4 hr
Jul 4, 3:39 PM CDTSevere Thunderstorm Warning Considerable damage threatDLHKoochiching51 min
Jul 4, 4:08 PM CDTAreal Flood AdvisoryDLHKoochiching4 hr
Jul 4, 5:20 PM CDTAreal Flood AdvisoryDLHKoochiching, Saint Louis5 hr
Jul 4, 5:38 PM CDTSevere Thunderstorm WarningDLHKoochiching, Saint Louis67 min
Jul 4, 6:19 PM CDTSevere Thunderstorm Warning Considerable damage threatDLHItasca, Koochiching, Saint Louis56 min
Jul 4, 6:30 PM CDTTornado WarningDLHKoochiching, Saint Louis30 min
Jul 4, 6:32 PM CDTSevere Thunderstorm WarningDLHSaint Louis15 min
Jul 4, 3:43 AM CDTSevere Thunderstorm WarningDLHWashburn32 min

Nearby

Flash Flood Warnings in Wisconsin, 2025Every flash flood warning in 2025

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.