Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 13, NWS Duluth, MN

May 27, 1991Iron County, Wisconsin

NWS Duluth, MN issued this severe thunderstorm warning at May 27, 1991, 6:48 PM CDT for Iron County, Wisconsin. It was in force for 57 min.

The area

The counties it named.

The facts

Issued
May 27, 1991, 6:48 PM CDT (23:48 UTC)
Expired
May 27, 1991, 7:45 PM CDT
In force
57 min
Issued by
NWS Duluth, MN
Area
Whole counties

County Iron County, WI

The nearest sounding before it

Minneapolis, MN (KSTC), launched 12:00Z, 11.8 hours before the alert went out and 307 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 1991-05-27Temperature 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 1991-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 89 square meters per square second.19395878Sfc1 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
1238 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
89 m²/s²
0-3 km storm-relative helicity
95 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 4:50 PM CDTSevere Thunderstorm WarningDLHDouglas40 min
May 27, 5:33 PM CDTSevere Thunderstorm WarningDLHAshland, Bayfield42 min
May 27, 6:12 PM CDTSevere Thunderstorm WarningDLHIron33 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1991Every severe thunderstorm warning in 1991

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.