Alert archive / Minnesota / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 8, NWS Twin Cities, MN

April 25, 1986Pope County, Swift County, Minnesota

NWS Twin Cities, MN issued this severe thunderstorm warning at Apr 25, 1986, 3:55 PM CST for Pope County, Swift County, Minnesota. It was in force for 50 min.

The area

The counties it named.

The facts

Issued
Apr 25, 1986, 3:55 PM CST (21:55 UTC)
Expired
Apr 25, 1986, 4:45 PM CST
In force
50 min
Issued by
NWS Twin Cities, MN
Area
Whole counties

Counties Pope County, MN, Swift County, MN

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Minneapolis, MN (KSTC), launched 12:00Z, 9.9 hours before the alert went out and 167 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 1986-04-25Temperature 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 1986-04-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 164 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
683 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
164 m²/s²
0-3 km storm-relative helicity
227 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 Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 25, 3:30 PM CSTSevere Thunderstorm WarningMPXWashington30 min
Apr 25, 3:30 PM CSTSevere Thunderstorm WarningMPXDakota30 min
Apr 25, 4:30 PM CSTSevere Thunderstorm WarningMPXKandiyohi60 min
Apr 25, 4:34 PM CSTSevere Thunderstorm WarningMPXRenville21 min
Apr 25, 4:40 PM CSTSevere Thunderstorm WarningMPXHouston, Winona40 min
Apr 25, 4:45 PM CSTSevere Thunderstorm WarningMPXStearns60 min
Apr 25, 5:15 PM CSTSevere Thunderstorm WarningMPXMeeker30 min
Apr 25, 5:15 PM CSTSevere Thunderstorm WarningMPXTodd30 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1986Every severe thunderstorm warning in 1986

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.