Alert archive / Wisconsin / Flash Flood Watches in 2008

Flash Flood Watch 2, NWS Duluth, MN

June 10, 20085 counties in Minnesota; 8 counties in Wisconsin

NWS Duluth, MN issued this flash flood watch at Jun 10, 2008, 3:31 PM CDT for 5 counties in Minnesota; 8 counties in Wisconsin. It took effect at Jun 11, 2008, 4:00 PM CDT. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued
Jun 10, 2008, 3:31 PM CDT (20:31 UTC)
In effect from
Jun 11, 2008, 4:00 PM CDT
Expired
Jun 12, 2008, 7:39 AM CDT
In force
16 hr
Issued by
NWS Duluth, MN
Flood severity
None

Counties Carlton County, MN, Cook County, MN, Lake County, MN, Pine County, MN, Saint Louis County, MN, Ashland County, WI, Bayfield County, WI, Burnett County, WI, Douglas County, WI, Iron County, WI, Price County, WI, Sawyer County, WI, Washburn County, WI

The radar

The Duluth radar (KDLH), 64 km from the middle of the area, began a volume at 20:34 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.

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 8.5 hours before the alert went out and 248 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 12:00Z on 2008-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 12:00Z on 2008-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 83 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
1 J/kg
Mixed-layer CIN
-79 J/kg
Mixed-layer LCL
1151 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
83 m²/s²
0-3 km storm-relative helicity
131 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 9, 8:07 PM CDTSevere Thunderstorm WarningDLHLake35 min
Jun 10, 6:53 AM CDTDense Fog AdvisoryDLHCarlton, Lake, Saint Louis3 hr

Nearby

Flash Flood Watches in Wisconsin, 2008Flash Flood Watches in Minnesota, 2008Every flash flood watch in 2008

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.