Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2015

Severe Thunderstorm Warning 1, NWS Duluth, MN

May 3, 2015Bayfield County, Douglas County, Sawyer County, Wisconsin

NWS Duluth, MN issued this severe thunderstorm warning at May 3, 2015, 2:48 PM CDT for Bayfield County, Douglas County, Sawyer County, Wisconsin. It was in force for 42 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 3, 2015, 2:48 PM CDT (19:48 UTC)
Expired
May 3, 2015, 3:30 PM CDT
In force
42 min
Issued by
NWS Duluth, MN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Bayfield County, WI, Douglas County, WI, Sawyer County, WI

The radar

The Duluth radar (KDLH), 84 km from the middle of the area, began a volume at 19:50 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, 7.8 hours before the alert went out and 237 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 2015-05-03Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2015-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1098 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
71 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
May 3, 2:37 PM CDTSpecial Weather StatementDLHDouglas23 min
May 3, 2:42 PM CDTSpecial Weather StatementDLHBayfield33 min
May 3, 3:37 PM CDTSpecial Weather StatementDLHWashburn23 min
May 3, 3:55 PM CDTSpecial Weather StatementDLHSawyer35 min
May 3, 4:02 PM CDTSpecial Weather StatementDLHWashburn28 min
May 3, 4:25 PM CDTSpecial Weather StatementDLHSawyer35 min
May 3, 5:12 PM CDTSpecial Weather StatementDLHWashburn18 min
May 3, 5:48 PM CDTSpecial Weather StatementDLHPrice12 min
May 3, 5:53 PM CDTSpecial Weather StatementDLHPrice7 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2015Every severe thunderstorm warning in 2015

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.